Sliding guide centering device for high-speed wire rod finishing mill

Abstract

This utility model discloses a sliding guide centering device for a high-speed wire rod finishing mill, belonging to the field of high-speed wire rod production technology. It is installed on the roll box panel of the guide seat and includes a first slide rail, a second slide rail, a third slide rail, a first centering clamping plate, a second centering clamping plate, and a third centering clamping plate. The first centering clamping plate is slidably connected to the first slide rail via a first slider, the second centering clamping plate is slidably connected to the second slide rail via a second slider, and the third centering clamping plate is slidably connected to the third slide rail via a third slider. The first centering clamping plate includes a first square plate and a first centering portion in the shape of an isosceles trapezoid. The second centering clamping plate includes a second square plate and two second centering portions in the shape of isosceles triangles. The third centering clamping plate includes a third triangular plate and a third centering portion in the shape of an isosceles trapezoid. All three centering clamping plates can be moved left and right and their positions can be finely adjusted forward and backward. This utility model solves the problem of unstable centering of the sliding guide in existing high-speed wire rod finishing mills.

Description

Technical Field

[0001] This utility model relates to the field of high-speed wire rod production technology, and in particular to a sliding guide centering device for a high-speed wire rod finishing mill. Background Technology

[0002] The high-speed wire rod finishing mill is the core equipment of a high-speed wire rod rolling production line. Relying on the continuous rolling principle and twist-free rolling technology, it achieves high-speed, high-precision wire rod rolling through precise pressing and speed control of multiple stands of rolls. The sliding guides of the high-speed wire rod finishing mill, using an alloy body and wear-resistant guide plates, guide the workpiece into the rolls through sliding contact. Precise installation and adjustment of components are crucial during assembly, with centering being of paramount importance, as its accuracy directly affects the quality of the rolled workpiece.

[0003] Currently, the alignment of the sliding guides in high-speed wire rod mills relies primarily on the subjective judgment of workers. Due to errors in individual observation and judgment, it is difficult to guarantee that the alignment of each guide meets the standards. Unstable alignment can easily lead to problems such as friction between the hot steel and the guide, wire scraping, and in severe cases, steel pile-up accidents, seriously affecting the quality of finished products and production indicators. Therefore, it is urgent to add a device before the line goes live that can determine the alignment in advance and is applicable to sliding guides of various specifications to avoid the above problems. Utility Model Content

[0004] This invention proposes a sliding guide centering device for a high-speed wire rod finishing mill to solve the problem of unstable centering of existing sliding guides in high-speed wire rod finishing mills.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The high-speed wire rod finishing mill sliding guide centering device is installed on the roll box panel that is vertically set and connected to the outlet sliding guide seat and the inlet sliding guide seat. The high-speed wire rod finishing mill sliding guide centering device includes a first slide rail, a second slide rail, a third slide rail, a first centering plate, a second centering plate, and a third centering plate that are all horizontally set.

[0007] The first, second, and third slide rails are installed above the roller box panel and arranged in a straight line along the length of the roller box panel; the length of the roller box panel is set to the left-right direction; the first centering plate is slidably connected to the first slide rail via a first slider, the second centering plate is slidably connected to the second slide rail via a second slider, and the third centering plate is slidably connected to the third slide rail via a third slider; the first, second, and third centering plates are all located at the same horizontal height and are higher than the outlet sliding guide seat and the inlet sliding guide seat; the outlet sliding guide seat is located between the first and second slide rails, and the inlet sliding guide seat is located between the second and third slide rails;

[0008] The first centering plate includes a first square plate and a first centering portion. At least two first adjustment holes for adjusting the position in the front and back are provided on the rear side of the first square plate. A first locking screw is inserted in each first adjustment hole. The first locking screw is threadedly connected to the first slider. The first centering portion is located on the side of the first square plate facing the outlet sliding guide seat and is in the shape of an isosceles trapezoid.

[0009] The second centering plate includes a second square plate and two second centering portions. At least two second adjustment holes for adjusting the position are provided on the rear side of the second square plate. A second locking screw is inserted in each second adjustment hole. The second locking screw is threadedly connected to the second slider. The two second centering portions are located on the left and right sides of the second square plate respectively and form an isosceles triangle.

[0010] The third centering plate includes a third shaped plate body and a third centering section. The rear side of the third shaped plate body has at least two third adjustment holes for adjusting the front and rear positions. Each third adjustment hole is fitted with a third locking screw, which is threadedly connected to the third slider. The third centering section is located on the side of the third shaped plate body facing the inlet sliding guide seat and is in the shape of an isosceles trapezoid. The size of the third centering section is larger than the size of the first centering section of the first centering plate.

[0011] Furthermore, the first slide rail, the second slide rail, and the third slide rail are all higher than the outlet sliding guide seat and the inlet sliding guide seat.

[0012] Furthermore, the lengths of the first and third slide rails are greater than the length of the second slide rail.

[0013] Furthermore, the first slide rail is connected to the roller box panel via a first support frame, the second slide rail is connected to the roller box panel via a second support frame, and the third slide rail is connected to the roller box panel via a third support frame.

[0014] Furthermore, the first support frame and the third support frame are respectively installed on the left and right sides of the roller box panel, and a groove is provided in the middle of the roller box panel, and the second support frame is installed in the groove.

[0015] Furthermore, the first support frame, the second support frame, and the third support frame are all inverted L-shapes.

[0016] Furthermore, the first centering plate, the second centering plate, and the third centering plate are all made of stainless steel.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] 1. This utility model effectively improves centering accuracy and ensures product quality. By utilizing the symmetrical principle of isosceles triangles and isosceles trapezoids in the centering plate, combined with the precise adjustment of the slide rail system, the centering deviation of the guide is controlled from an average of 2.5mm in traditional manual operation to within 0.5mm, significantly improving centering accuracy. High-precision centering effectively avoids problems such as friction and wire scraping between the red steel and the guide, reducing the incidence of steel stacking accidents, thereby ensuring the surface quality and dimensional accuracy of the finished wire and improving the product qualification rate.

[0019] 2. This utility model can effectively improve work efficiency and shorten production preparation time. With the flexible movement of the slide rail system and the rapid positioning of the centering plate, the time for a single guide centering adjustment is reduced from 20 minutes to 4 minutes, increasing efficiency by 80%. The improved work efficiency significantly reduces production preparation time, which helps to improve the overall operating efficiency of the production line and increase production capacity.

[0020] 3. This invention effectively enhances alignment stability and improves production reliability. Through standardized structural design and precise adjustment mechanism, the guide's repeat alignment qualification rate is increased from 60% to 99%, effectively ensuring production stability. Stable alignment reduces guide wear, extends guide service life, and lowers equipment replacement and maintenance costs.

[0021] 4. This utility model can adapt to guides of various specifications, improve the versatility of the device, and is designed with three different types of centering plates, namely the first centering plate, the second centering plate, and the third centering plate. The first centering part of the first centering plate and the third centering part of the third centering plate are both isosceles trapezoids, and the two second centering parts of the second centering plate are isosceles triangles. The three types of centering plates can be used together to meet the needs of guide hole shapes of different specifications.

[0022] 5. This utility model has a reasonable structural design, facilitating operation and maintenance. The centering plate is slidably connected to the slide rail via a slider, allowing the operator to easily move the centering plate left and right. The centering plate is equipped with adjustment holes and locking screws, facilitating fine-tuning of the centering plate's position forward and backward by the operator. The slide rail is mounted on the roller box panel via an inverted L-shaped support frame, ensuring a stable structure and facilitating installation and maintenance.

[0023] 6. This utility model has the advantages of low cost and high practicality. The device mainly consists of a centering plate, slide rail, support frame, and other structures, resulting in low manufacturing cost. Verified through production application, this device performs well in actual steel rolling mill production scenarios, significantly improving the centering accuracy of the guide, reducing wear and failure rate, and possessing broad promotional value and application prospects. Attached Figure Description

[0024] Figure 1 This is a perspective view of the high-speed wire rod mill sliding guide centering device proposed in Embodiment 1 of this utility model;

[0025] Figure 2 This is a front view of the sliding guide centering device for a high-speed wire rod mill according to Embodiment 1 of this utility model;

[0026] Figure 3 This is a top view of the high-speed wire rod mill sliding guide centering device proposed in Embodiment 1 of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the three centering plates proposed in Embodiment 1 of this utility model;

[0028] Figure 5 This is a schematic diagram illustrating the front-to-back adjustment and alignment of the guide roll with the assistance of this utility model.

[0029] Figure 6 This is a schematic diagram illustrating the height adjustment and alignment of the guide roll with the assistance of this utility model.

[0030] Figure 7 A schematic diagram of the existing sliding exit guide and sliding inlet guide;

[0031] The components in the attached diagram are labeled as follows: 1-Roller box panel, 2-Outlet sliding guide seat, 3-Inlet sliding guide seat, 4-First centering plate, 5-First slide rail, 6-First slider, 7-First adjusting hole, 8-First locking screw, 9-First support frame, 10-Second centering plate, 11-Second slide rail, 12-Second slider, 13-Second adjusting hole, 14-Second locking screw, 15-Second support frame, 16-Third centering plate, 17-Third slide rail, 18-Third slider, 19-Third adjusting hole, 20-Third locking screw, 21-Third support frame, 22-Groove, 23-Sliding outlet guide, 24-Sliding inlet guide, 25-Upper surface of centering plate, 26-Guide insert boundary, 27-Guide box, 28-Guide insert. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1

[0034] like Figure 1-4As shown, the sliding guide centering device of the high-speed wire rod finishing mill is installed on the roll box panel 1, which is vertically set and connected to the exit sliding guide seat 2 and the inlet sliding guide seat 3. Both the exit sliding guide seat 2 and the inlet sliding guide seat 3 are existing structures.

[0035] The high-speed wire rod finishing mill sliding guide centering device includes a first slide rail 5, a second slide rail 11, a third slide rail 17, a first centering clamping plate 4, a second centering clamping plate 10, and a third centering clamping plate 16, all horizontally arranged. In this embodiment, the first centering clamping plate 4, the second centering clamping plate 10, and the third centering clamping plate 16 are all made of stainless steel. Multiple of each type of centering clamping plate are provided, all of the same size, to prevent bending during operation and allow for timely replacement. Different types of clamping plates can only be installed in specific positions on the device and are not interchangeable. The dimensions of the centering clamping plates are as follows: Figure 4 Note the key dimensions.

[0036] The first slide rail 5, the second slide rail 11, and the third slide rail 17 are installed above the roller box panel 1 and arranged in a straight line along the length of the roller box panel 1. The length direction of the roller box panel 1 is set to the left-right direction. Specifically, the first slide rail 5, the second slide rail 11, and the third slide rail 17 are all higher than the outlet sliding guide seat 2 and the inlet sliding guide seat 3. The lengths of the first slide rail 5 and the third slide rail 17 are greater than the length of the second slide rail 11.

[0037] The first slide rail 5 is connected to the roller box panel 1 via the first support frame 9, the second slide rail 11 is connected to the roller box panel 1 via the second support frame 15, and the third slide rail 17 is connected to the roller box panel 1 via the third support frame 21. The first support frame 9 and the third support frame 21 are respectively installed on the left and right sides of the roller box panel 1. A groove 22 is formed in the center of the roller box panel 1, and the second support frame 15 is installed in the groove 22. The first support frame 9, the second support frame 15, and the third support frame 21 are all inverted L-shapes.

[0038] The first centering plate 4 is slidably connected to the first slide rail 5 via the first slider 6; the second centering plate 10 is slidably connected to the second slide rail 11 via the second slider 12; and the third centering plate 16 is slidably connected to the third slide rail 17 via the third slider 18. The first centering plate 4, the second centering plate 10, and the third centering plate 16 are all located at the same horizontal height, and are higher than the outlet sliding guide seat 2 and the inlet sliding guide seat 3. The outlet sliding guide seat 2 is located between the first slide rail 5 and the second slide rail 11, and the inlet sliding guide seat 3 is located between the second slide rail 11 and the third slide rail 17.

[0039] The first centering plate 4 includes a first square plate and a first centering section. At least two first adjustment holes 7 for adjusting the position forward and backward are provided on the rear side of the first square plate. A first locking screw 8 passes through each first adjustment hole 7 and is threadedly connected to the first slider 6. In this embodiment, there are two first adjustment holes 7 and two first locking screws 8. The first centering section is located on the side of the first square plate facing the outlet sliding guide seat 2 and is in the shape of an isosceles trapezoid.

[0040] The second centering plate 10 includes a second square plate and two second centering portions. At least two second adjustment holes 13 for adjusting the position forward and backward are provided on the rear side of the second square plate. A second locking screw 14 passes through each second adjustment hole 13 and is threadedly connected to the second slider 12. In this embodiment, there are two second adjustment holes 13 and two second locking screws 14. The two second centering portions are located on the left and right sides of the second square plate, respectively, and form an isosceles triangle.

[0041] The third centering plate 16 includes a third triangular plate body and a third center section. At least two third adjustment holes 19 for adjusting the position forward and backward are provided on the rear side of the third triangular plate body. A third locking screw 20 passes through each third adjustment hole 19 and is threadedly connected to the third slider 18. In this embodiment, there are two third adjustment holes 19 and two third locking screws 20. The third center section is located on the side of the third triangular plate body facing the inlet sliding guide seat 3 and is in the shape of an isosceles trapezoid. The dimensions of the third center section are larger than the dimensions of the first center section of the first centering plate 4.

[0042] Based on the different specifications of guide hole types, this utility model utilizes the principle of symmetry of the two sides of an isosceles triangle and the principle of symmetry of the hypotenuse of an isosceles trapezoid to design and customize three types of centering plates (first centering plate 4, second centering plate 10, and third centering plate 16) to ensure that the corresponding plates can fit tightly to the guides of the corresponding specifications and achieve precise centering.

[0043] This invention introduces a slide rail system (first slide rail 5, second slide rail 11, third slide rail 17), utilizing its ability to move freely left and right to flexibly install centering plates (first centering plate 4, second centering plate 10, third centering plate 16) on the slide rails. This design allows the operator to easily adjust the position of the plates as needed, greatly improving the flexibility and accuracy of centering adjustments.

[0044] In practice, offline centering adjustments include front-to-back adjustments and height adjustments.

[0045] Step 1: Adjust the guide roll. Using isosceles triangle and isosceles trapezoidal centering plates (second centering plate 10, first centering plate 4, third centering plate 16), insert the centering plates into the guide's inner hole and observe the fit of the centering plates against the hole wall to determine if the guide is aligned. If the gaps on the front and back sides are asymmetrical, it indicates that the guide is not aligned. Adjust the screws in the front and back directions as needed until both sides of the centering plates fit against the hole wall simultaneously.

[0046] like Figure 5 As shown, the adjustment steps are as follows:

[0047] The first step is to install the guides onto the guide seats, specifically, the sliding exit guide 23 is installed onto the exit sliding guide seat 2, and the sliding inlet guide 24 is installed onto the inlet sliding guide seat 3. Both the sliding exit guide 23 and the sliding inlet guide 24 are existing structures, assembled from the guide box 27 and the guide insert 28, as shown below. Figure 7 As shown.

[0048] The second step is to insert the first centering plate 4 into the inner hole of the inlet end of the sliding outlet guide 23, observe the gap between the two sides of the isosceles line of the first centering plate and the inner wall of the hole, and adjust the two screws of the guide box so that the gap difference on both sides is less than 0.3mm.

[0049] Third, insert the second centering plate 10 into the inner hole of the outlet end of the sliding outlet guide 23, observe the gap between the two sides of the isosceles line of the second centering and the inner wall of the hole, and adjust the two screws of the guide box so that the gap on both sides is less than 0.3mm.

[0050] Fourth step: Following the above method, center the sliding inlet guide 24 using the second centering plate 10 and the third centering plate 16.

[0051] Among them, the first centering plate 4 and the second centering plate 10 are used for centering the sliding exit guide 23, and the second centering plate 10 and the third centering plate 16 are used for centering the sliding inlet guide 24. The second centering plate 10 has two functions.

[0052] Step 2: After the front and rear alignment operations are completed, adjust the height of the rolling centerline. Based on the height difference between the middle interface of the guide insert and the upper surface of the clamping plates (first alignment clamping plate 4, second alignment clamping plate 10, and third alignment clamping plate 16), finely adjust the upper and lower screws of the guide box until they are completely on the same horizontal plane, thus achieving precise offline alignment of the guide.

[0053] like Figure 6 As shown, the adjustment steps are as follows:

[0054] First, insert the first centering plate 4 into the inner hole of the inlet end of the sliding outlet guide 23, observe the height difference between the upper surface of the centering plate and the interface between the guide plug, and adjust the upper and lower screws of the guide box to make the height difference less than 0.3mm.

[0055] The second step is to insert the second centering plate 10 into the inner hole of the outlet end of the sliding outlet guide 23, observe the height difference between the upper surface of the centering plate and the interface 26 of the guide plug, and adjust the upper and lower screws of the guide box to make the height difference less than 0.3mm.

[0056] The third step involves centering the sliding inlet guide 24 using the second centering plate 10 and the third centering plate 16, following the method described above.

[0057] Among them, the first centering plate 4 and the second centering plate 10 are used for centering the sliding exit guide 23, and the second centering plate 10 and the third centering plate 16 are used for centering the sliding inlet guide 24. The second centering plate 10 has two uses.

[0058] This invention relates to a device for adjusting the alignment between the finishing mill sliding guide rolling line and the rolling mill line in high-speed wire rod production. It employs three different types of alignment clamps (first alignment clamp 4, second alignment clamp 10, and third alignment clamp 16), which move using slide rails (first slide rail 5, second slide rail 11, and third slide rail 17) to adapt to the alignment of guides of various specifications. This ensures that the guide rolling line installed on the rolling mill is consistent with the rolling mill line, thereby reducing guide wear, extending their service life, and reducing the failure rate during rolling. Through this device, the sliding guides of the finishing mill can be precisely adjusted and aligned offline, ensuring that the alignment of the guides on the line meets the requirements.

[0059] This invention effectively improves centering accuracy and ensures product quality, reducing the guide centering deviation from an average of 2.5mm in traditional manual operation to within 0.5mm, significantly improving centering accuracy. High-precision centering effectively avoids problems such as friction and wire scraping between the red steel and the guide, reducing the incidence of steel stacking accidents, thereby ensuring the surface quality and dimensional accuracy of the finished wire and improving the product qualification rate.

[0060] This invention effectively improves operational efficiency and shortens production preparation time. Utilizing the flexible movement of the slide rail system (first slide rail 5, second slide rail 11, third slide rail 17) and the rapid positioning of the centering clamps (first centering clamp 4, second centering clamp 10, third centering clamp 16), the time for a single guide centering adjustment is reduced from 20 minutes to 4 minutes, increasing efficiency by 80%. This improved operational efficiency significantly reduces production preparation time, contributing to increased overall production line efficiency and capacity.

[0061] This invention effectively enhances alignment stability and improves production reliability. Through standardized structural design and precise adjustment mechanism, the guide's repeat alignment pass rate is increased from 60% to 99%, effectively ensuring production stability. Stable alignment reduces guide wear, extends guide service life, and lowers equipment replacement and maintenance costs.

[0062] This invention has been industrially verified in a high-speed wire rod finishing mill of a steel rolling mill. The original sliding guide assembly of this mill used manual alignment, resulting in an average of 6 guide-related steel pile-up accidents per month. After implementing this technology, continuous tracking tests over six months (November 2024 - May 2025) showed that by accurately establishing the rolling line spatial coordinate system through the benchmark replication module, and in conjunction with the alignment clamping plate system (first alignment clamping plate 4, second alignment clamping plate 10, and third alignment clamping plate 16), the alignment accuracy of the guide installation was stably controlled within 0.5mm. Actual operating data shows that the guide replacement cycle was significantly extended, and the average number of steel pile-up accidents per month decreased to 0.6 (a 90% reduction). This case fully verifies the significant effect of this technology in improving rolling stability and extending spare parts life.

[0063] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A high-speed finishing mill sliding guide centering device, which is installed on a roll stand panel that is vertically arranged and connected with an exit sliding guide seat and an entrance sliding guide seat, characterized in that, The high-speed wire rod mill sliding guide centering device includes a first slide rail, a second slide rail, a third slide rail, a first centering plate, a second centering plate, and a third centering plate, all horizontally arranged. The first, second, and third slide rails are installed above the roller box panel and arranged in a straight line along the length of the roller box panel; the length of the roller box panel is set to the left-right direction; the first centering plate is slidably connected to the first slide rail via a first slider, the second centering plate is slidably connected to the second slide rail via a second slider, and the third centering plate is slidably connected to the third slide rail via a third slider; the first, second, and third centering plates are all located at the same horizontal height and are higher than the outlet sliding guide seat and the inlet sliding guide seat; the outlet sliding guide seat is located between the first and second slide rails, and the inlet sliding guide seat is located between the second and third slide rails; The first centering plate includes a first square plate and a first centering portion. At least two first adjustment holes for adjusting the position in the front and back are provided on the rear side of the first square plate. A first locking screw is inserted in each first adjustment hole. The first locking screw is threadedly connected to the first slider. The first centering portion is located on the side of the first square plate facing the outlet sliding guide seat and is in the shape of an isosceles trapezoid. The second centering plate includes a second square plate and two second centering portions. At least two second adjustment holes for adjusting the position are provided on the rear side of the second square plate. A second locking screw is inserted in each second adjustment hole. The second locking screw is threadedly connected to the second slider. The two second centering portions are located on the left and right sides of the second square plate respectively and form an isosceles triangle. The third centering plate includes a third shaped plate body and a third centering section. The rear side of the third shaped plate body has at least two third adjustment holes for adjusting the front and rear positions. Each third adjustment hole is fitted with a third locking screw, which is threadedly connected to the third slider. The third centering section is located on the side of the third shaped plate body facing the inlet sliding guide seat and is in the shape of an isosceles trapezoid. The size of the third centering section is larger than the size of the first centering section of the first centering plate.

2. The high-speed wire finishing mill sliding guide centering device according to claim 1, characterized in that: The first slide rail, the second slide rail, and the third slide rail are all higher than the outlet sliding guide seat and the inlet sliding guide seat.

3. The high-speed wire finishing mill sliding guide centering device of claim 1, wherein: The lengths of the first and third slide rails are greater than the length of the second slide rail.

4. The high-speed wire finishing mill sliding guide centering device of claim 1, wherein: The first slide rail is connected to the roller box panel via a first support frame, the second slide rail is connected to the roller box panel via a second support frame, and the third slide rail is connected to the roller box panel via a third support frame.

5. The high-speed wire finishing mill sliding guide centering device of claim 4, wherein: The first support frame and the third support frame are respectively installed on the left and right sides of the roller box panel. A groove is provided in the middle of the roller box panel, and the second support frame is installed in the groove.

6. The high-speed wire finishing mill sliding guide centering device of claim 5, wherein: The first support frame, the second support frame, and the third support frame are all inverted L-shapes.

7. The high-speed wire finishing mill sliding guide centering device of claim 1, wherein: The first, second, and third centering plates are all made of stainless steel.

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