Hot-rolled wire rod head and tail ring-shaped binding device for PF wire C-shaped hook

Abstract

The utility model discloses a hot-rolled wire rod head and tail ring-shaped binding device for a PF wire C-shaped hook, which belongs to the technical field of hot-rolled wire rod production, and comprises two groups of limiting components which are symmetrically arranged at the head and tail ends of a lower side hook body beam arm of the C-shaped hook, and a binding gap for accommodating a hot-rolled coil is formed between the two groups of limiting components; the limiting assembly is detachably connected to the lower side hook body beam arm, and the width of the binding gap and the original length of a hot-rolled coil in the coil collecting barrel are adjusted in a matched mode. The C-shaped hook is conveniently provided with the two limiting assemblies for fixing the head ring shape and the tail ring shape of the hot-rolled coil, the limiting assemblies and the hook body beam arm on the lower side can be conveniently disassembled or assembled, the width of a binding gap between the two limiting assemblies and the length of the hot-rolled coil can be conveniently adjusted, and springback of the head ring shape and the tail ring shape of a hot-rolled wire rod is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hot-rolled wire production technology, and in particular to a head and tail loop binding device for hot-rolled wire C-type hooks for PF wire, used to suppress head and tail springback after wire is coiled. Background Technology

[0002] PF line refers to PF transport line. In the production of wire rod in high-speed rolling mills, PF transport line is generally used for transporting coils. PF line mainly consists of drive chain, traction chain, traction rail, load-bearing beam, balance rail, C-shaped hook trolley, stopper, turnout, and slewing wheel. The C-shaped hook trolley runs on the load-bearing beam and can stop at each working station. It is used in coiling station, packaging station, weighing station, and unloading station to meet the production process of hot-rolled wire rod. When hot-rolled wire rod is transferred to the C-hook after being coiled, the material at the head of the coil pops outward due to stress release, resulting in an increase in coil length (e.g., 2.1m inside the coil drum → 2.5m on the C-hook). This requires high pressure (≥21t) to compress to the target length during packaging, which can easily lead to the following problems: (1) Surface damage: High pressure causes iron oxide scale to break and embed into the material, increasing the risk of breakage during pulling; (2) Safety hazards: Excessive coil length can easily cause knots or fly off on the customer's unloading rack; (3) Energy waste: Additional pressure is required to compensate for the rebound length. Existing technology lacks a lightweight device to directly suppress the coiled rebound of the head and tail of hot-rolled wire rod on the C-hook. Utility Model Content

[0003] Technical problem solved: In view of the technical problems existing in the use of C-type hooks, this utility model provides a hot-rolled wire head and tail loop binding device for PF wire C-type hooks. The C-type hook is conveniently equipped with a limiting component to fix the head and tail loops of the hot-rolled coil, maintain the original length of the coil, and reduce packaging pressure and surface damage.

[0004] Technical solution: The present invention provides a hot-rolled wire end-to-end loop binding device for PF wire C-type hooks, comprising two sets of limiting components, which are symmetrically arranged at the head and tail ends of the lower hook body beam arm of the C-type hook, and a binding gap for accommodating the hot-rolled coil is formed between the two sets of limiting components.

[0005] The limiting component is detachably connected to the lower hook beam arm, allowing the width of the restraint gap to be adjusted to match the original length of the hot-rolled coil inside the collecting drum.

[0006] Preferably, a limiting guide groove is provided on the inner side of the lower hook beam arm along its length direction;

[0007] The limiting component includes a guide rail slidably connected in the limiting guide groove. A connecting block is provided on the top surface of one end of the guide rail, and a limiting seat is connected to the top of the connecting block. A wedge-shaped or arc-shaped limiting surface is formed on one side of the limiting seat, and a binding gap is formed between the limiting surfaces of the two sets of limiting seats.

[0008] Preferably, multiple sets of positioning slots are symmetrically arranged on both sides of the limiting guide groove along its length direction;

[0009] A set of limiting blocks is provided on each side of the guide rail, and the limiting blocks are correspondingly engaged in the positioning slots.

[0010] Preferably, multiple sets of positioning slots are symmetrically arranged on both sides of the limiting guide groove along its length direction;

[0011] A drive rack is provided along the length of the guide rail at the end away from the limiting seat, and a drive box is provided at the top of the guide rail. The drive box includes a box body, and positioning blocks that can be correspondingly engaged in the positioning slots are provided on both sides of the box body. A power cavity with an open bottom is formed inside the box body. A drive gear that meshes and is connected to the drive rack is rotatably provided inside the power cavity. The rotation of the drive gear drives the drive rack and the guide rail as a whole to move forward or backward along the limiting guide groove.

[0012] Preferably, a drive shaft is provided through both sides of the box body, and the drive shaft is connected to a drive handwheel or a drive motor.

[0013] Preferably, a drive handle is provided on the outer circumference of the drive handwheel.

[0014] Preferably, the drive rack has multiple connecting through holes along its length for fixing screws to pass through.

[0015] Preferably, the positioning block is connected to the positioning slot by a snap-fit ​​or bolt fixing method.

[0016] Preferably, the width of the limiting seat is greater than the width of the positioning slot, and the top height of the connecting block is higher than the top surface of the positioning slot, so that the bottom surface of the limiting seat is supported on the two side plates of the positioning slot.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention conveniently incorporates two sets of limiting components on a C-shaped hook to fix the head and tail loops of the hot-rolled coil. These limiting components can be easily disassembled or installed with the lower hook body beam arm, and the binding gap width between the two sets of limiting components can be easily adjusted to match the length of the hot-rolled coil, preventing the head and tail loops of the hot-rolled wire from springing back. This ensures that the coil length equals the length before packaging (e.g., coil length 1.7m → length before packaging 1.7m). It also reduces packaging pressure, lowering the packaging pressure of 14mm 55SiCr steel wire from 25t to 20t. Furthermore, it reduces surface damage of the hot-rolled coil by more than 80% due to high-pressure extrusion. Attached Figure Description

[0019] Figure 1 This is a front view of the PF line structure of this utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the C-shaped hook structure;

[0021] Figure 3 for Figure 1 Main view of the middle limit component structure;

[0022] Figure 4 for Figure 3 Top view of the middle limit component structure;

[0023] Figure 5 for Figure 4 Sectional view of the middle limiting component AA;

[0024] Figure 6 for Figure 3 Schematic diagram of the drive rack structure;

[0025] Figure 7 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0026] Reference numerals: 1. PF line; 2. C-hook; 21. Lower hook body beam arm; 22. Limiting guide groove; 23. Positioning slot; 3. Limiting assembly; 4. Guide rail; 5. Connecting block; 6. Limiting seat; 61. Limiting surface; 7. Drive rack; 71. Connecting through hole; 8. Drive handwheel; 9. Connecting piece; 10. Drive handle; 11. Drive box; 111. Positioning block; 112. Box body; 113. Power cavity; 12. Drive shaft; 13. Drive gear; 14. Restraint gap. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be combined with... Figures 1-7The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0028] Example 1: As Figure 1 As shown, this utility model discloses a head and tail loop binding device for hot-rolled wire using a C-shaped hook for PF wire. It includes two sets of limiting components 3, symmetrically arranged at the head and tail ends of the lower hook body beam arm 21 of the C-shaped hook 2. A binding gap 14 for accommodating the hot-rolled coil is formed between the two sets of limiting components 3. The limiting components 3 are detachably connected to the lower hook body beam arm 21, allowing the width of the binding gap 14 to be adjusted to match the original length of the hot-rolled coil in the coiling drum. By adjusting the distance between the two sets of limiting components 3 along the lower hook body beam arm 21, the original length of the hot-rolled coil in the coiling drum is satisfied, preventing the head and tail loops of the hot-rolled wire from springing back. This ensures that the coiling length equals the length before packaging (e.g., 1.7m coil → 1.7m before packaging), reducing packaging pressure and surface damage to the hot-rolled coil.

[0029] Specifically, such as Figure 2 As shown, a limiting guide groove 22 is provided along the length direction of the lower hook beam arm 21. The limiting component 3 includes a guide rail 4 slidably connected in the limiting guide groove 22. A connecting block 5 is provided on the top surface of one end of the guide rail 4, and the top of the connecting block 5 is connected to a limiting seat 6. A wedge-shaped or arc-shaped limiting surface 61 is formed on one side of the limiting seat 6, and a binding gap 14 is formed between the limiting surfaces 61 of the two sets of limiting seats 6. In this embodiment, the limiting seat 6 can be conveniently slidably connected in the limiting guide groove 22 by the guide rail 4, and the width of the binding gap between the two limiting seats 6 can be adjusted by sliding the guide rail 4 along the limiting guide groove 22 to satisfy the position limitation of the coils at both ends of the hot-rolled coil. It should be noted that in this embodiment, the two sets of limiting components maintain the stable connection of the guide rail 4 in the limiting guide groove 22 based on their own weight.

[0030] Furthermore, such as Figure 4 As shown, the width of the limiting seat 6 is greater than the width of the positioning slot 23, and the top height of the connecting block 5 is higher than the top surface of the positioning slot 23. It should be noted that the top surface of the connecting block 5 is slightly higher than the top surface of the positioning slot 23, so that the bottom surface of the limiting seat 6 is supported on the two side plates of the positioning slot 23, thereby improving the stability of the limiting component 3 installed on the lower hook beam arm 21.

[0031] Furthermore, such as Figure 2As shown, multiple sets of positioning slots 23 are symmetrically arranged on both sides of the limiting guide groove 22 along its length direction; a set of limiting blocks (not shown in the figure) are respectively arranged on both sides of the guide rail 4, and the limiting blocks can be correspondingly engaged in the positioning slots 23. In this embodiment, the guide rail 4 and the limiting seat 6 on it cooperate with the positioning slots 23 through the limiting blocks arranged on both sides of the guide rail 4, which can further realize the connection stability of the two sets of limiting components 3 on the lower hook beam arm 21, and avoid the two sets of limiting components being pushed outward along the positioning slots 23 due to the rebound of the hot-rolled coil head and tail coil, thus reducing the limiting ability of the hot-rolled coil head and tail coil. It should be noted that the technical solution of setting limiting blocks on both sides of the guide rail 4 is only one feasible solution of this application. This solution achieves the condition that the gap between the two sets of limiting components 3 is within a large range through the cooperation of the limiting blocks and the positioning slots 23, but cannot achieve further fine control.

[0032] In this embodiment, the connection between the limiting block and the positioning slot 23 can be either a snap-fit ​​type or a bolt fixing type.

[0033] Example 2: Since the constraint gap 14 between the two sets of limiting components 3 in Example 1 cannot be precisely controlled, in this example, as... Figures 2-7 As shown, multiple sets of positioning slots 23 are symmetrically arranged on both sides of the limiting guide groove 22 along its length direction. The difference is that a drive rack 7 is arranged along the length direction at the end of the guide rail 4 away from the limiting seat 6. The drive rack 7 has multiple connecting through holes 71 for fixing screws to pass through along its length direction. The drive rack 7 is fixedly connected to the top surface of the guide rail 4 by fixing screws. A drive box 11 is arranged at the top of the guide rail 4. The drive box 11 includes a box body 112. Positioning blocks 111 that can be correspondingly engaged in the positioning slots 23 are arranged on both sides of the box body 112. The function of the positioning blocks 111 is the same as that of the limiting blocks (not shown in the figure) in Embodiment 1, that is, to be fixedly connected to the positioning slots 23.

[0034] like Figure 5As shown, a power cavity 113 with an open bottom is formed inside the housing 112. A drive gear 13, which meshes with and is connected to the drive rack 7, is rotatably installed inside the power cavity 113. The rotation of the drive gear 13 drives the drive rack 7 and the guide rail 4 to move forward or backward along the limiting guide groove 22. This allows for precise adjustment of the distance between the binding gap 14 between the two sets of limiting components 3. In this embodiment, if it is necessary to adjust the gap between the two sets of limiting components 3 in a large direction, it is only necessary to first place the two sets of guide rails in the limiting guide groove 22, and then use the positioning block 111 to align the two sets of drive boxes 11 with the positioning slots 23 installed at the corresponding positions, thereby achieving preliminary adjustment of the position of the drive boxes 11 of the two sets of limiting components on the lower hook beam arm 21; then, the precise control of the distance between the two sets of limiting seats 6 is achieved by the cooperation of the drive gear 13 and the drive rack 7, thereby improving the precise control of the hot-rolled coil length.

[0035] A drive shaft 12 is provided through both side walls of the housing 112, and the drive shaft 12 is connected to or drives a motor. Figure 4 As shown, a drive handwheel 8 is provided at one end of the drive shaft 12. The drive handwheel 8 is connected to the drive shaft 12 through a connector 9. A drive handle 10 is provided on the outer circumference of the drive handwheel 8. The drive handle 10 can conveniently drive the drive handwheel 8 and the drive shaft 12 to rotate, thereby driving the drive gear 13 to rotate and drive the drive rack 7.

[0036] In this embodiment, the positioning block 111 and the positioning slot 23 can be connected by either a snap-fit ​​or a bolt fixing method. If the bolt fixing method is used, it is only necessary to open a connecting through hole on the positioning block 111 or the limiting block, and the positioning block 111 or the limiting block can be bolted to the positioning slot 23.

[0037] The working principle or method of this utility model:

[0038] First, two sets of limiting components 3 are installed at the head and tail positions of the lower hook body beam arm 21 of the C-hook 2. The two sets of limiting components 3 move synchronously with the C-hook 2 and the PF line 1. The specific structure and operation mode of the PF line and the C-hook 2 can be found in "An anti-slip device for a C-hook of PF line" disclosed in Chinese Patent 202321012148.8.

[0039] Secondly, adjust the height of the feeding trolley to feed the hot-rolled coil into the binding gap 14 between the two sets of limiting components 3. The two sets of limiting components 3 restrict the springback of the head and tail ring material of the hot-rolled coil, thereby reducing the packaging pressure and surface damage to the hot-rolled coil.

[0040] Next, the hot-rolled coil is transported to the baling machine via the PF line and C-hook 2, and then baled by passing through the gap of the baling machine pressure plate 5.

[0041] Finally, during unwinding, the hot-rolled coil is separated from the two sets of limiting components 3 without contact.

[0042] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A head and tail loop binding device for hot-rolled wire C-shaped hooks in PF wire, characterized in that, It includes two sets of limiting components (3), which are symmetrically arranged at the head and tail ends of the lower hook body beam arm (21) of the C-shaped hook (2), and a binding gap (14) is formed between the two sets of limiting components (3) to accommodate the hot-rolled coil. The limiting component (3) is detachably connected to the lower hook beam arm (21), and the width of the binding gap (14) is matched and adjusted to match the original length of the hot-rolled coil in the collecting drum.

2. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 1, characterized in that, The lower hook beam arm (21) is provided with a limit guide groove (22) along its length direction on the inner side. The limiting component (3) includes a guide rail (4) slidably connected in the limiting guide groove (22). A connecting block (5) is provided on the top surface of one end of the guide rail (4), and a limiting seat (6) is connected to the top of the connecting block (5). A wedge-shaped or arc-shaped limiting surface (61) is formed on one side of the limiting seat (6), and a binding gap (14) is formed between the limiting surfaces (61) of the two sets of limiting seats (6).

3. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 2, characterized in that, Multiple sets of positioning slots (23) are symmetrically arranged on both sides of the limiting guide groove (22) along its length direction; A set of limiting blocks are provided on both sides of the guide rail (4), and the limiting blocks are correspondingly engaged in the positioning slot (23).

4. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 2, characterized in that, Multiple sets of positioning slots (23) are symmetrically arranged on both sides of the limiting guide groove (22) along its length direction; The guide rail (4) has a drive rack (7) along its length at the end away from the limiting seat (6), and a drive box (11) is provided at the top of the guide rail (4). The drive box (11) includes a box body (112), and positioning blocks (111) that can be correspondingly engaged in the positioning slots (23) are provided on both sides of the box body (112). A power cavity (113) with an open bottom is formed inside the box body (112). A drive gear (13) that meshes and is connected to the drive rack (7) is rotatably provided inside the power cavity (113). The drive gear (13) rotates and drives the drive rack (7) and the guide rail (4) as a whole to move forward or backward along the limiting guide groove (22).

5. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 4, characterized in that, A drive shaft (12) is provided through both sides of the box body (112), and the drive shaft (12) is connected to the drive handwheel (8) or the drive motor.

6. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 5, characterized in that, A drive handle (10) is provided on the outer circumference of the drive handwheel (8).

7. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 4, characterized in that, The drive rack (7) has multiple connecting through holes (71) along its length for fixing screws to pass through.

8. The hot-rolled wire head and tail loop binding device for PF wire C-shaped hooks according to claim 4, characterized in that, The positioning block (111) and the positioning slot (23) are connected by a snap-on or bolt-fixed method.

9. The hot-rolled wire head and tail loop binding device for PF wire C-type hooks according to claim 4, characterized in that, The width of the limiting seat (6) is greater than the width of the positioning slot (23), and the top height of the connecting block (5) is higher than the top surface of the positioning slot (23), so that the bottom surface of the limiting seat (6) is supported on the two side plates of the positioning slot (23).

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