High speed wire rod rapid cooling device

Abstract

The application relates to a high-speed wire quick cooling device, which comprises a supporting roller for receiving and conveying wire from a wire feeder, a fan is arranged along a conveying line below the supporting roller, and the supporting roller is sleeved with a plurality of conveying plates connected in head-to-tail mode; a connecting piece is arranged on a rear one of the conveying plates, and the connecting piece is hinged with a connecting shaft on a front one of the conveying plates; each conveying plate conveys wire by rotating with the supporting roller; the conveying plate comprises an outer frame surrounded by four side plates and allowing air to pass through from top to bottom; a sliding fin is arranged in the outer frame, the sliding fin has a width smaller than that of the outer frame and can slide in the outer frame in the vertical direction of the conveying direction of the conveying plate; the device further comprises a first pushing device and a second pushing device; the first pushing device pushes the sliding fin in each conveying plate to slide towards the second pushing device; and the second pushing device pushes the sliding fin in each conveying plate to slide towards the first pushing device.

Description

Technical Field

[0001] This application relates to the field of steel rolling process equipment technology, specifically to a high-speed wire rod rapid cooling device. Background Technology

[0002] High-speed wire rod refers to steel wire in coil form rolled using a twist-free rolling mill. After rolling and extruding, high-speed wire rod remains at a high temperature and is typically cooled using a Steyrmore air-cooled wire. (See appendix) Figure 1 A typical Stellmore air-cooled line consists of a roller conveyor 30 downstream of the spinning machine that transports the coiled wire, with large fans (not shown in the figure) arrayed below the roller conveyor. The high temperature of the wire is dissipated and heat-treated through air cooling. The speed and uniformity of heat dissipation in this process determine the mechanical properties and quality uniformity of the finished high-strength wire.

[0003] The existing Stellmore air-cooled line still has low cooling efficiency. Furthermore, heat dissipation is rapid at the points of contact between the wire coil and the idler roller, moderate at the points of non-contact, and poor at the overlap points between adjacent coils. Figure 1 (b) The area where the two circles overlap dissipates heat the slowest, resulting in different heat treatment effects in these three areas, which limits the overall performance of the finished product.

[0004] Some solutions specifically designed to enhance heat dissipation at joints have emerged, such as CN 110976530 B, which uses nozzles to spray directly onto the joints to achieve additional heat dissipation. However, the thermal conductivity of the sprayed liquid is highly dependent on the thermal conductivity of the air-cooled air, making this solution complex to control and prone to creating new temperature stratification zones. Summary of the Invention

[0005] (I) Technical Issues

[0006] 1. Improve the heat dissipation efficiency of the Steyrmo air-cooled line;

[0007] 2. Solve the problem of heat dissipation difficulty at the overlapping points of the disc.

[0008] (II) Technical Solution

[0009] A high-speed wire rapid cooling device includes a roller for receiving and conveying wire from a spinning machine, and a fan arranged below the roller along the conveyor line. The device is characterized in that: multiple conveyor plates connected end to end are mounted on the roller, and the next conveyor plate is hinged to the previous one by a connecting piece set on it, and each conveyor plate conveys wire as the roller rotates.

[0010] The conveyor plate includes an outer frame, which is surrounded by four side panels and is ventilated from top to bottom; a sliding fin is provided in the outer frame, the width of which is smaller than that of the outer frame and can slide in the outer frame along the direction perpendicular to the forward direction of the conveyor plate.

[0011] It also includes a first pushing device and a second pushing device, wherein the first pushing device pushes the sliding fins in each conveyor plate to slide toward the second pushing device; and the second pushing device pushes the sliding fins in each conveyor plate to slide toward the first pushing device.

[0012] Furthermore, the first and second pushing devices are respectively arranged on both sides of the roller conveyor. Pushing arms are symmetrically arranged on both sides of the sliding fin. The pushing arms pass through the pushing holes on the upright plates on both sides of the outer frame through ball bearing guide sleeves to achieve sliding limit. The first and second pushing devices respectively include a drive motor, a guide rail and a pushing plate driven by the drive motor through a lead screw. The pushing plate moves along the guide rail and has an arc surface on one side. The pushing device pushes the rollers at the end of the pushing arm so that the sliding fin can slide.

[0013] Furthermore, the sliding fin is provided with a heat dissipation fin 11, and the length of the sliding fin in its traveling direction is less than half the diameter of the high-speed wire coil it carries.

[0014] Furthermore, the sliding fin is made of copper.

[0015] Furthermore, the idler roller is inclined upward along the conveying direction.

[0016] Furthermore, it also includes a control system, which controls the first pushing device and the second pushing device to work alternately or sequentially according to a certain program design, and sets the first pushing device and the second pushing device to have the same or different movement speeds.

[0017] Furthermore, the first and second pushing devices are each provided with a distance adjustment mechanism to change their distance from the roller conveyor to achieve different pushing depths.

[0018] Furthermore, the distance adjustment mechanism is controlled by the control system.

[0019] (III) Beneficial Effects

[0020] This application introduces a sliding fin mechanism, which essentially functions as a heat sink. Compared to air, it has a much higher thermal conductivity. Furthermore, through a pushing device, the contact points between the wire and the transmission plate, as well as the overlapping points of the wire itself, are kept in a constant state of flux and change, thus uniformly improving the heat dissipation efficiency at various points on the wire coil and achieving the effect of improving overall performance. Attached Figure Description

[0021] Figure 1 A schematic diagram of a high-speed wire cooling device in the Stellmore region of existing technology;

[0022] Figure 2 For the schematic diagram of the rapid cooling device according to this application, please note... Figure 2The rightmost conveyor plate has its inner frame and other details hidden to illustrate its structure;

[0023] Figure 3 for Figure 2 Top view;

[0024] Figure 4 for Figure 2 Exploded view of the conveyor plate in the image.

[0025] Figure Labels

[0026] 20. Thread feeding machine

[0027] 30. Conveyor roller conveyor

[0028] 41-42. Rewinding mechanism

[0029] 50. High-speed wire

[0030] 1. Idler roller

[0031] 2. Conveyor board

[0032] 3. First pushing device

[0033] 4. Drive motor

[0034] 5. Second pushing device

[0035] 6. Push plate

[0036] 7. Outer frame

[0037] 8. Push hole

[0038] 9. Ball bearing guide sleeve

[0039] 10. Sliding fin block

[0040] 11. Heat dissipation fins

[0041] 12. Push arm

[0042] 13. Rollers

[0043] 14. Connecting piece

[0044] 15. Connecting shaft Detailed Implementation

[0045] The present invention will be further described below with reference to the embodiments.

[0046] like Figure 1As shown, the high-speed wire rapid cooling device according to this application includes a roller 1 that receives and conveys wire from a spinning machine. A fan is arranged below the roller along the conveyor line. The device is characterized in that: multiple conveyor plates 2 connected end to end are mounted on the roller. The adjacent conveyor plates 2 are hinged to each other by a connecting piece 14 and a connecting shaft 15 on the previous one. Each conveyor plate conveys wire as the roller rotates.

[0047] The conveyor plate includes an outer frame 7, which is surrounded by four side uprights and is ventilated from top to bottom. A sliding fin plate 10 is provided in the outer frame 7. The width of the sliding fin plate 10 is smaller than that of the outer frame 7 and it can slide in the outer frame 7 in the direction perpendicular to the forward direction of the conveyor plate.

[0048] It also includes a first pushing device and a second pushing device, wherein the first pushing device pushes the sliding fins in each conveyor plate to slide toward the second pushing device; and the second pushing device pushes the sliding fins in each conveyor plate to slide toward the first pushing device.

[0049] In this solution, idler rollers are used to carry conveyor plates (multiple conveyor plates are linked together to form a structure similar to tank tracks or plate conveyor belts). Sliding fins on the conveyor plates carry the wire, and the wire no longer comes into direct contact with the idler rollers.

[0050] This is because the roller is cylindrical, and it only makes point contact with the disc-shaped wire, which does little to help with heat dissipation; while after being replaced with a conveyor plate, it has more contact with the wire placed on it, and actually acts as a heat sink.

[0051] At the same time, the first and second pushing mechanisms on both sides of the roller conveyor cause the sliding fins to slide back and forth. This firstly makes the contact point between the wire and the sliding fins no longer stationary, allowing it to contact different positions of the sliding fins more often. Secondly, it changes the overlap point between different discs, thus solving the problem of poor heat dissipation at the overlap point.

[0052] Furthermore, the first and second pushing devices are respectively arranged on both sides of the roller conveyor. Pushing arms 12 are symmetrically arranged on both sides of the sliding fin plate. The pushing arms 12 pass through the pushing holes 8 on the two upright plates of the outer frame 7 through the ball guide sleeves 9 to achieve sliding limit. The first and second pushing devices respectively include a drive motor 4, a guide rail and a pushing plate 6 driven by the drive motor 4 through a lead screw. The pushing plate 6 moves along the guide rail and has an arc surface on one side. It pushes the roller 13 at the end of the pushing arm 12 so that the sliding fin plate can slide.

[0053] The circular surface of the extrusion plate is covered with a cushioning pad.

[0054] The working mechanism of the pushing device is as follows: initially, only the first pushing device works, with its pushing plate moving from one end to the other, pushing all the sliding fins in the outer frame to the other side; at the same time, it causes the wire to coil and shift to a certain extent; then the other pushing device works from one end to the other, pushing the sliding fins back, and then achieving the coil shift.

[0055] Of course, the two pushing devices can also work at different times and in succession, as long as the sliding fins are caused to slide, the purpose is achieved.

[0056] Meanwhile, the first and second pushing devices can operate at different speeds. Different pushing speeds result in different sliding speeds for the sliding fins, causing the wire coil to stop at different positions, preventing only a few fixed points from being heated after sliding back and forth.

[0057] Furthermore, the sliding fin is provided with a heat dissipation fin 11, and the length of the sliding fin in its traveling direction is less than half the diameter of the high-speed wire coil it carries.

[0058] Because the disc has a large diameter, it actually contacts multiple sliding fins, and the different pushing times disrupt the stacking of the discs, resulting in more even heat dissipation. The design of the heat dissipation fins allows the sliding fins to function as heat sinks, and the thermal conductivity of metal is tens of times that of air, further improving heat dissipation efficiency.

[0059] The sliding fin is made of copper.

[0060] Furthermore, the idler roller is inclined upward along the conveying direction.

[0061] The inclined conveying mechanism causes slight slippage of the coils during transport, resulting in a gradual decrease in coil density.

[0062] Furthermore, it also includes a control system (not shown), which controls the first pushing device and the second pushing device to work alternately or sequentially according to a certain program design, and sets the first pushing device and the second pushing device to have the same or different movement speeds.

[0063] Furthermore, the first and second pushing devices are each provided with a distance adjustment mechanism to change their distance from the roller conveyor to achieve different pushing depths.

[0064] Furthermore, the distance adjustment mechanism is controlled by the control system.

[0065] The introduction of the control system allows for adjustment of the working speed (whether it causes disc slippage), frequency, and depth of the two pushing devices, making the hot spots on the conveyor plate as different as possible, thereby making full use of the device and achieving the goal of dissipating heat as quickly as possible.

[0066] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A high-speed wire rapid cooling device, characterized in that: The system includes idlers that receive and convey wire from a spinning machine. A fan is arranged below the idlers along the conveyor line. Multiple conveyor plates, connected end-to-end, are mounted on the idlers. Adjacent conveyor plates are hinged to each other via connecting plates. Each conveyor plate conveys wire as it rotates. Each conveyor plate includes an outer frame formed by four side panels, allowing for ventilation from top to bottom. Sliding fins, narrower than the outer frame, are installed within the outer frame and can slide perpendicular to the direction of travel. The system also includes a first pushing device and a second pushing device. The first pushing device pushes the sliding fins in each conveyor plate towards the second pushing device; the second pushing device pushes the sliding fins in each conveyor plate towards the first pushing device. The first and second pushing devices are respectively arranged on both sides of the roller conveyor. Pushing arms are symmetrically arranged on both sides of the sliding fin. The pushing arms pass through the pushing holes on the vertical plates on both sides of the outer frame through ball guide sleeves to achieve sliding limit. The first and second pushing devices respectively include a drive motor, a guide rail and a pushing plate driven by the drive motor through a lead screw. The pushing plate moves along the guide rail and has an arc surface on one side. The pushing device pushes the rollers at the end of the pushing arm so that the sliding fin can slide. The sliding fin is equipped with heat dissipation fins, and the length of the sliding fin in its traveling direction is less than half the diameter of the high-speed wire coil it carries. It also includes a control system, which controls the first and second pushing devices to work alternately or sequentially according to a certain program design, and sets the first and second pushing devices to have the same or different movement speeds.

2. The high-speed wire rapid cooling device according to claim 1, characterized in that: The sliding fins are made of copper.

3. The high-speed wire rapid cooling device according to claim 1, characterized in that: The idler rollers are inclined upwards along the conveying direction.

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