Digital adjustment method for high wire finishing guide opening degree

Abstract

The application discloses a high wire finishing guide opening degree digital adjustment method and relates to the technical field of steel rolling guide. The steps are as follows: 1) installing a guide plate; 2) adjusting the guide centering; 3) adjusting the guide opening degree, first, putting a sample rod between two guide rollers in a guide assembly, the front end of the sample rod penetrating the middle part of the guide nose tip in the guide assembly, then quickly reducing the distance between the two guide rollers by using a torque wrench until the sample rod is gently clamped; then, slowly reducing the distance between the two guide rollers, gradually increasing the clamping force of the guide rollers on the sample rod until the adjusted torque reaches the value set in advance by the torque wrench, and stopping when the head of the torque wrench emits a click sound; 4) locking the adjusting screw rod, and the high wire finishing guide is adjusted and debugged. The application can solve the problem that the opening degrees of each guide are not unified and standard, which leads to the inverted steel or stacked steel accidents of the on-line guide due to incorrect opening degrees, and affects the production and the finished product quality.

Description

Technical Field

[0001] This invention relates to the field of steel rolling guide technology, and in particular to a digital adjustment method for the opening degree of finishing rolling guides in high-speed wire rod production. Background Technology

[0002] Currently, the opening degree of long product rolling guides is adjusted by workers according to standard-sized template bars. Although the template bars are standard parts made according to relevant standard dimensions, when tightening the adjusting lock nut at the end of the opening adjustment, each person's experience in tightening with a regular wrench varies, and the force applied by the adjusting rollers to hold the template bar also differs. Those with more strength may adjust the guide opening degree too tightly, while those with less strength may adjust it too loosely. Due to individual differences in work experience and strength, the guide opening degree adjustment will also have individual differences. Therefore, it is impossible to guarantee that the opening degree of every guide is uniform and standard. This can lead to steel tipping or piling accidents caused by incorrect opening degree of the guides on the production line, affecting the quality and performance indicators of the finished product. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a digital adjustment method for the opening degree of the guide in high-speed wire rod finishing mill. It can solve the problem that the opening degree of each guide is not uniform and not standard, which leads to steel falling or piling accidents due to incorrect opening degree of the guide on the line, affecting production and finished product quality.

[0004] To solve the above problems, the technical solution of this invention is: a method for digitally adjusting the opening degree of a guide in a high-speed wire rod mill, comprising the following steps:

[0005] Step 1: Install the guide plates; these are the two steel plates at the inlet of the sample bar in the guide assembly that serve as guides for the rolled piece.

[0006] Step 2: Adjust the centering of the guides; use a laser centering instrument to adjust the centering of the guides. Use the laser centering instrument to detect and adjust the relative position accuracy of the two guide plates and guide rollers 4 to ensure that their centers are on the same straight line.

[0007] Step 3: Adjust the guide opening. First, place the sample bar between the two guide rollers in the guide assembly, with the front end of the sample bar passing through the middle of the guide nose in the guide assembly. Then, use a torque wrench to quickly reduce the distance between the two guide rollers until the sample bar is gently clamped. Subsequently, slowly reduce the distance between the two guide rollers and gradually increase the clamping force of the guide rollers on the sample bar until the adjusted torque reaches the value preset by the torque wrench. At this point, the torque wrench head will release force and make a clicking sound, then stop.

[0008] Step 4: Tighten the adjusting screw, and the high-speed wire rod precision rolling guide is now ready for commissioning.

[0009] A more specific embodiment of the above technical solution is as follows: the torque wrench is a preset torque wrench; the torque wrench includes a rod and a handle, one end of the rod is connected to a replaceable wrench head, and the other end is connected to the handle as a whole, a main scale is provided on a section of the rod near the handle, a secondary scale is provided in conjunction with the main scale, and a locking device is provided between the secondary scale and the handle.

[0010] Further: The sample bar is a standard bar made according to the standard material shape of each pass of finishing rolling, and the height of the sample bar is 4-15 mm.

[0011] Furthermore, the handle is fitted with an anti-slip sleeve.

[0012] Further: The replaceable wrench is a box wrench with a working end having a dodecagonal hole or a multi-angle hole, which is suitable for adjusting small guide nuts in confined working spaces where ordinary wrenches cannot be used.

[0013] Furthermore: the replaceable wrench head is a fixed wrench head with a fixed-size opening, suitable for adjusting nuts of a certain size.

[0014] Furthermore: the replaceable wrench head is an open-ended Torx wrench head with multiple open angled holes, suitable for adjusting smooth-surfaced and fixed-size adjusting nuts.

[0015] Furthermore: the replaceable wrench head is a movable wrench head, suitable for adjusting nuts of different sizes.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects:

[0017] This invention utilizes a torque wrench to adjust guides, enabling quantitative adjustment of guide opening. Appropriate torque can be selected based on actual production conditions to ensure the guide opening meets current process requirements. This significantly reduces adjustment discrepancies caused by varying employee skill levels, improving and standardizing guide adjustment efficiency by over 50%. Simultaneously, it extends guide lifespan and reduces downtime. Taking high-speed wire rod as an example, this method increases guide lifespan by 1-2 hours, reducing guide replacement time by an average of two times per day and saving 10 minutes of downtime. Based on a shift output of 800 tons, and a minute output of 1.7 tons, this translates to an additional 1.7 × 10 = 17 tons per day, or 6205 tons per year. Assuming a profit of 200 yuan per ton of high-speed wire rod, this translates to an annual increase in company profits of 1.24 million yuan. Furthermore, it significantly improves yield and reduces downtime. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the guide's adjustment of the main view;

[0019] Figure 2 This is a top-down view of the guide's adjustment.

[0020] Figure 3 This is a schematic diagram of a preset torque wrench.

[0021] Figure 4 This is a schematic diagram of the connector structure of each preset torque wrench.

[0022] The labels in the diagram are as follows:

[0023] 1. Torque wrench; 1-1. Rod; 1-2. Main scale; 1-3. Secondary scale; 1-4. Locking device; 1-5. Handle; 1-6. Replaceable wrench head; 2. Sample bar; 3. Guide assembly; 4. Guide roller; 5. Adjusting locking nut; 6. Guide nose. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 and Figure 2 The method for digitally adjusting the opening degree of the guide rail in high-speed wire rod finishing mills is as follows:

[0026] Step 1: Install the guide plates in the guide assembly, namely the two steel plates at the inlet of sample bar 2 that serve as guides for the rolled piece;

[0027] Step 2: Adjust the centering of the guides; use a laser centering instrument to adjust the centering of the guides. Use the laser centering instrument to detect and adjust the relative position accuracy of the two guide plates and guide rollers 4 to ensure that their centers are on the same straight line.

[0028] Step 3: Adjust the guide opening. First, place the sample rod 2 between the two guide rollers 4 in the guide assembly. The front end of the sample rod 2 passes through the middle of the guide nose 6 in the guide assembly. Then, use the torque wrench 1 to quickly reduce the distance between the two guide rollers 4 until the sample rod 2 is gently clamped. Then, slowly reduce the distance between the two guide rollers 2 and gradually increase the force of the guide rollers clamping the sample rod until the adjusted torque reaches the value preset by the torque wrench 1. At this time, the torque wrench head releases force and makes a clicking sound.

[0029] Step 4: Tighten adjusting screw 5, and the guide is now adjusted.

[0030] The torque wrench 1 used in the above-mentioned digital adjustment method for the opening degree of the guide in high-speed wire rod mill is a preset torque wrench, such as... Figure 3As shown, the torque wrench 1 includes a rod 1-1 and a handle 1-5. One end of the rod 1-1 is connected to a replaceable wrench head 1-6, and the other end is integrated with the handle 1-5. A main scale 1-2 is provided on the section of the rod 1-1 near the handle 1-5. A secondary scale 1-3 for fine-tuning is provided in conjunction with the main scale 1-2. A locking device 1-4 for locking the secondary scale 1-3 is provided between the secondary scale 1-3 and the handle 1-5. A non-slip sleeve is fitted on the handle 1-5. The replaceable wrench head 1-6 uses different types of wrenches depending on the size and style of the adjusting nut in the guide, offering a variety of options, such as... Figure 4 As shown, this embodiment lists four types of wrenches: open-end wrench (a), fixed-end wrench (b), open-end wrench (c), and adjustable wrench (d). The open-end wrench (a) has a working end with a dodecagonal or polygonal hole, suitable for adjusting small guide nuts in confined spaces where ordinary wrenches cannot be used. The fixed-end wrench (b) has a fixed-size opening, suitable for adjusting nuts of a certain size. The open-end wrench (c) has an open polygonal hole, suitable for adjusting nuts with smooth surfaces and a fixed size. The adjustable wrench (d) is suitable for adjusting nuts of different sizes.

[0031] Sample bar 2 is a standard bar made according to the standard material shape of each pass of finishing rolling, with a height between 4 and 15 mm.

[0032] The difference between the preset torque wrench 1 and other ordinary wrenches is that the torque can be preset by adjusting the values ​​on the main scale 1-2 and the secondary scale 1-3 and then locking it with the locking device 1-4. Before use, the wrench is preset with a fixed torque value. When the operator continuously pulls the wrench, when the torque reaches the preset value, the wrench head will provide a release feedback and make a clicking sound to prompt the operator to stop.

[0033] This invention primarily addresses the technology for adjusting the guide opening degree. Through on-site research and analysis, a preset torque wrench is used to adjust the guide opening degree, solving the problem of unpredictable force application by humans. This transforms the previous reliance on intuition and experience into numerical quantification, achieving digital adjustment of the opening degree.

Claims

1. A method for digitally adjusting the opening degree of a guide in a high-speed wire rod mill, characterized in that: The steps are as follows: Step 1: Install the guide plate; Step 2: Adjust the guide to center; Step 3: Adjust the guide opening. First, place the sample rod (2) between the two guide rollers (4) in the guide assembly. The front end of the sample rod (2) passes through the middle of the guide nose tip (6) in the guide assembly. Then, use a torque wrench (1) to reduce the distance between the two guide rollers (4). When the sample rod (2) is clamped, gradually increase the force of the guide rollers clamping the sample rod until the adjusted torque reaches the value preset by the torque wrench (1). At this time, the torque wrench head releases force and makes a clicking sound, then stops. Step 4: Tighten the adjusting screw (5), and the high-speed wire rod precision rolling guide is now ready for commissioning.

2. The method for digitally adjusting the opening degree of the guide in high-speed wire rod milling according to claim 1, characterized in that: The torque wrench (1) is a preset torque wrench; the torque wrench (1) includes a rod (1-1) and a handle (1-5). One end of the rod (1-1) is connected to a replaceable wrench head (1-6), and the other end is connected to the handle (1-5) as a whole. A main scale (1-2) is provided on a section of the rod (1-1) near the handle (1-5), and a secondary scale (1-3) is provided in conjunction with the main scale (1-2). A locking device (1-4) is provided between the secondary scale (1-3) and the handle (1-5).

3. The method for digitally adjusting the opening degree of the guide in high-speed wire rod finishing mill according to claim 1, characterized in that: The sample bar (2) is a standard bar made according to the standard material shape of each pass of finishing rolling, and the height of the sample bar (2) is 4-15 mm.

4. The method for digitally adjusting the opening degree of the guide in high-speed wire rod milling according to claim 2, characterized in that: The handle (1-5) is fitted with an anti-slip sleeve.

5. The method for digitally adjusting the opening degree of the guide in high-speed wire rod milling according to claim 2, characterized in that: The replaceable wrenches (1-6) are box wrenches.

6. The method for digitally adjusting the opening degree of the guide in high-speed wire rod milling according to claim 2, characterized in that: The replaceable wrenches (1-6) are fixed wrenches.

7. The method for digitally adjusting the opening degree of the guide rail in high-speed wire rod milling according to claim 2, characterized in that: The replaceable wrenches (1-6) are open-end wrenches.

8. The method for digitally adjusting the opening degree of the guide rail in high-speed wire rod milling according to claim 2, characterized in that: The replaceable wrench (1-6) is a movable wrench.

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