A kind of cutting guide groove for small size bar finishing rolling unit

Abstract

The utility model discloses a kind of for small-specification bar finish rolling unit cutting guide groove, it is related to steel bar technical field, including: base, bottom plate, first side plate, second side plate and at least one line plate unit, bottom plate is installed on base;First side plate and second side plate are fixed to the both sides of bottom plate and form trapezoidal with cross section being wide in front and narrow in back;Line plate unit is installed on the bottom plate between first side plate and second side plate, first side plate, second side plate and line plate unit jointly constitute progressive spacing control channel to make the line distance of rolling piece gradually converge to target line distance, simple structure, convenient to use, effectively improve rolling mill hot rolling guide efficiency effectively avoid the occurrence of rolling piece accumulation flying out and injuring situation.

Description

Technical Field

[0001] This utility model relates to the field of steel bar technology, and in particular to a cutting guide groove for small-diameter bar finishing mills. Background Technology

[0002] Baogang's long products plant's bar production line mainly produces hot-rolled ribbed steel bars, using 150mm*

[0003] Using 150mm continuously cast square billets as raw material, the annual production capacity is 600,000-700,000 tons. To improve economic efficiency, increase output, reduce the cost per ton of steel, and decrease consumption, the bar production line is undergoing a slitting modification. However, the existing rolling mill, being a single-line rolling mill, has significant shortcomings, as it cannot simultaneously perform multi-line feeding. When rolling small-diameter bar products, abnormal steel accumulation in the rolled pieces is prone to occur, potentially causing hot steel to fly out and injure people, seriously affecting production safety and efficiency. Therefore, an effective improvement device is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a cutting guide groove for small-diameter bar finishing mills to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively improves the hot rolling conveying efficiency of the mill, and effectively avoids the occurrence of rolled pieces accumulating and flying out, causing injury.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a cutting guide channel for a small-diameter bar finishing mill, comprising: a base, a bottom plate, a first side plate, a second side plate, and at least one dividing plate unit. The bottom plate is mounted on the base. The first side plate and the second side plate are symmetrically fixed on both sides of the bottom plate and form a trapezoid with a cross-section that is wider at the front and narrower at the back. The dividing plate unit is mounted on the bottom plate between the first side plate and the second side plate. The first side plate, the second side plate, and the dividing plate unit together constitute a progressive spacing control channel so that the line spacing of the rolled piece gradually converges to the target line spacing.

[0007] Preferably, the front opening width of the trapezoid is 400mm and the rear spacing is 38mm.

[0008] Preferably, the splitter unit includes an integrally formed splitter tail, a splitter middle, and a splitter rear, wherein:

[0009] The end of the dividing plate has vertical stiffeners and is equipped with a detachable wear-resistant steel plate.

[0010] The middle surface of the splitter board is polished.

[0011] The rear of the dividing plate extends to the inlet of the mill guide device.

[0012] Preferably, the thickness of the vertical stiffener is equal to the thickness of the dividing plate unit, and it is integrally formed with the tail of the dividing plate. The height of the vertical stiffener is not less than 2 / 3 of the height of the dividing plate unit.

[0013] Preferably, the upper surface of the base plate is provided with equally spaced longitudinal slots, and the first side plate, the second side plate and the dividing plate unit are engaged with the longitudinal slots.

[0014] Preferably, the longitudinal slot spacing of the base plate is 50mm and the depth is 5mm, and the bottom of the first side plate, the second side plate and the dividing plate unit are provided with protrusions that match the longitudinal slots.

[0015] Preferably, the protruding structure is a positioning block, and the positioning block forms an interference fit with the longitudinal slot.

[0016] Preferably, the detachable wear-resistant steel plate is bolted to the tail of the dividing plate, and its material is high-strength wear-resistant steel with a thickness of 10mm.

[0017] Preferably, the target line spacing is the center distance between lines after the rolled piece is cut, and the convergence angle of the progressive spacing control channel is 3°-5°.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] This utility model provides a cutting guide chute for small-diameter bar finishing mills, providing a specific running channel for the rolled piece during the cutting process. The trapezoidal structure, wider at the front and narrower at the back, and the progressively spaced control channel guide the rolled piece along a predetermined path for multi-line hot rolling, effectively preventing the rolled piece from running around or deviating during the rolling process, improving the hot rolling conveying efficiency of the mill, achieving precise control of the rolled piece's operation, and preventing the rolled piece from accumulating and flying out, thus ensuring production safety and efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the cutting guide groove for a small-diameter bar finishing mill provided by this utility model;

[0022] Figure 2 This is a top view of the cutting guide groove for a small-diameter bar finishing mill provided by this utility model;

[0023] Figure 3 This is a front view of the cutting guide groove for a small-diameter bar finishing mill provided by this utility model;

[0024] In the diagram: 1. Base; 2. Base plate; 3. Tail end of the dividing plate; 4. Middle part of the dividing plate; 5. Tail end of the dividing plate; 6. First side plate; 7. Second side plate; 8. Vertical stiffener. Detailed Implementation

[0025] 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.

[0026] The purpose of this invention is to provide a cutting guide groove for small-diameter bar finishing mills to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively improves the hot rolling conveying efficiency of the mill, and effectively avoids the occurrence of rolled pieces accumulating and flying out, causing injury.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] This utility model provides a slitting guide groove for small-diameter bar finishing mills, such as... Figures 1-3 As shown, the structure includes: a base 1, a base plate 2, a first side plate 6, a second side plate 7, and at least one dividing plate unit. The base plate 2 is mounted on the base 1. The first side plate 6 and the second side plate 7 are symmetrically fixed on both sides of the base plate 2, forming a trapezoidal cross-section that is wider at the front and narrower at the back. The dividing plate unit is mounted on the base plate 2 between the first side plate 6 and the second side plate 7. The first side plate 6, the second side plate 7, and the dividing plate unit together constitute a progressive spacing control channel to gradually converge the line spacing of the rolled piece to the target line spacing. Through this structural design, a specific running channel is provided for the rolled piece during the cutting of the guide groove in the finishing mill. The trapezoidal structure that is wider at the front and narrower at the back and the progressive spacing control channel can guide the rolled piece to be hot-rolled along a predetermined path, effectively avoiding random movement or deviation of the rolled piece during the rolling process, improving the hot-rolling conveying efficiency of the mill, realizing precise control of the rolled piece operation, and preventing the rolled piece from accumulating and flying out, thus ensuring production safety and efficiency.

[0029] In a preferred embodiment, the front opening width of the trapezoid is 400mm, and the rear spacing is 38mm. The 400mm front opening width fully considers the expansion margin of the rolled piece under hot conditions, ensuring that the rolled piece has sufficient space in the initial stage of entering the guide groove, and will not cause congestion or deformation due to insufficient space. The 38mm rear spacing can accurately control the final line spacing of the rolled piece. In conjunction with the progressive spacing control channel and the dividing plate, the fluctuation of the rolled piece spacing can be accurately controlled within a small range, which is beneficial to improving rolling accuracy and product quality.

[0030] In a preferred embodiment, the splitter unit includes an integrally formed splitter tail portion 3, a splitter middle portion 4, and a splitter rear portion 5, wherein:

[0031] The tail section 3 of the dividing plate has a vertical stiffener 8 and is equipped with a detachable wear-resistant steel plate. The vertical stiffener 8 in the tail section 3 is integrally formed, which enhances the impact resistance of the head and can effectively resist the impact force when the workpiece enters, while limiting the lateral deviation of the workpiece. The detachable wear-resistant steel plate is easy to replace after wear, which reduces the cost of use and increases the service life of the tail section 3 of the dividing plate.

[0032] The four surfaces in the middle of the dividing plate are polished, which reduces the coefficient of friction between the dividing plate and the rolled workpiece, ensuring that the rolled workpiece can pass smoothly after being divided, and further guaranteeing the stability and efficiency of the rolling process.

[0033] The rear part 5 of the dividing plate extends to the inlet of the rolling mill guide device, ensuring that the rolled piece can achieve a smooth transition, forming a continuous guide path, constructing a complete multi-line rolling guide system, and ensuring the continuity and stability of the entire rolling process.

[0034] In a preferred embodiment, the thickness of the vertical stiffener 8 is equal to the thickness of the dividing plate unit and is integrally formed with the tail portion 3 of the dividing plate. The height of the vertical stiffener 8 is not less than 2 / 3 of the height of the dividing plate unit. The vertical stiffener 8 and the dividing plate unit have the same thickness and are integrally formed, which enhances the integrity and strength of the structure, allowing it to better maintain its shape and position when subjected to impact and extrusion of the rolled piece. The height of not less than 2 / 3 of the height of the dividing plate unit can effectively restrict the lateral movement of the rolled piece, further improve the control capability of the running direction of the rolled piece, ensure that the rolled piece passes through the dividing plate stably, and improve the accuracy and stability of rolling.

[0035] In a preferred embodiment, the upper surface of the base plate 2 is provided with equally spaced longitudinal slots. The first side plate 6, the second side plate 7, and the dividing plate unit are engaged in the longitudinal slots. This slot and engagement design facilitates quick and easy installation, accurately positioning the first side plate 6, the second side plate 7, and the dividing plate unit, ensuring the accuracy and consistency of the installation of each component. On the other hand, it provides convenience for adjusting the device under different rolling requirements. Operators can flexibly adjust the position of each component or increase or decrease the number of dividing plate units as needed, improving the overall applicability and operability of the device.

[0036] In a preferred embodiment, the longitudinal slot spacing of the base plate 2 is 50mm and the depth is 5mm. The bottom of the first side plate 6, the second side plate 7, and the dividing plate unit are provided with protrusions that match the longitudinal slots. The 50mm slot spacing and 5mm depth design is a standardized structure, which has good versatility and interchangeability under different production needs. For example, one set of dividing plates can be installed when cutting two lines, and two sets can be easily installed when cutting three lines. The guide rail can be flexibly operated according to different cutting quantities. The protrusions that match the slots can accurately cooperate with the slots, ensuring the stability and firmness of the connection, and further enhancing the overall structural stability of the device.

[0037] In a preferred embodiment, the protruding structure is a positioning block. The positioning block and the longitudinal slot form an interference fit. The interference fit between the positioning block and the longitudinal slot greatly improves the installation stability of the first side plate 6, the second side plate 7 and the dividing plate unit on the base plate 2. During the operation of the equipment, even if subjected to external forces such as vibration and impact, the components are not prone to loosening or displacement, thereby ensuring the reliability of the structure and the stability of the rolling accuracy of the device during long-term operation.

[0038] In a preferred embodiment, the detachable wear-resistant steel plate is bolted to the tail of the dividing plate 3. The plate is made of high-strength wear-resistant steel and is 10mm thick. The detachable design allows for quick replacement via bolts after wear, eliminating the need to replace the entire tail of the dividing plate 3, significantly reducing maintenance costs and replacement time. The high-strength wear-resistant steel material and 10mm thickness ensure that the wear-resistant steel plate possesses high strength, high hardness, high temperature resistance, and wear resistance, effectively reducing wear on the tail of the dividing plate 3 during the entry of the rolled piece, extending the service life of the tail of the dividing plate 3, and thus improving the reliability and durability of the entire cutting guide device.

[0039] In a preferred embodiment, the target line spacing is the center-to-center distance between the lines after the workpiece is slit, and the convergence angle of the progressive spacing control channel is 3°-5°. Clearly defining the target line spacing as the center-to-center distance between the lines after the workpiece is slit helps to more accurately design and adjust the structural parameters of the entire slitting guide device to meet the rolling requirements of different specifications of workpieces. The convergence angle of 3°-5° is obtained through optimized design. This angle range allows the workpiece to converge smoothly and steadily to the target line spacing within the progressive spacing control channel, avoiding excessive fluctuations in the workpiece spacing due to an excessively large or small convergence angle, which would affect rolling quality and efficiency, thereby improving the quality stability of the rolled product.

[0040] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A slitting guide groove for a small-diameter bar finishing mill, characterized in that: include: Base A base plate, which is mounted on the base; The first side plate and the second side plate are symmetrically fixed to both sides of the base plate and form a trapezoid with a cross-section that is wider at the front and narrower at the back. At least one dividing plate unit is mounted on a base plate between the first side plate and the second side plate. The first side plate, the second side plate, and the dividing plate unit together form a progressive spacing control channel to gradually converge the line spacing of the rolled piece to the target line spacing.

2. The slitting guide groove for small-diameter bar finishing mills according to claim 1, characterized in that: The trapezoid has a front opening width of 400mm and a rear spacing of 38mm.

3. The slitting guide groove for small-diameter bar finishing mills according to claim 2, characterized in that: The splitter unit includes an integrally formed splitter tail section, a splitter middle section, and a splitter rear section, wherein: The end of the dividing plate has vertical stiffeners and is equipped with a detachable wear-resistant steel plate. The middle surface of the splitter board is polished. The rear of the dividing plate extends to the inlet of the mill guide device.

4. The slitting guide groove for small-diameter bar finishing mills according to claim 3, characterized in that: The thickness of the vertical stiffener is equal to the thickness of the dividing plate unit, and it is integrally formed with the tail of the dividing plate. The height of the vertical stiffener is not less than 2 / 3 of the height of the dividing plate unit.

5. The slitting guide groove for small-diameter bar finishing mills according to claim 4, characterized in that: The upper surface of the base plate is provided with equally spaced longitudinal slots, and the first side plate, the second side plate and the dividing plate unit are engaged with the longitudinal slots.

6. The slitting guide groove for small-diameter bar finishing mills according to claim 5, characterized in that: The longitudinal slot spacing of the base plate is 50mm and the depth is 5mm. The bottom of the first side plate, the second side plate and the dividing plate unit are provided with a protrusion structure that matches the longitudinal slot.

7. The slitting guide groove for small-diameter bar finishing mills according to claim 6, characterized in that: The protruding structure is a positioning block, and the positioning block forms an interference fit with the longitudinal slot.

8. The slitting guide groove for small-diameter bar finishing mills according to claim 7, characterized in that: The detachable wear-resistant steel plate is bolted to the tail of the dividing plate. It is made of high-strength wear-resistant steel and has a thickness of 10mm.

9. The slitting guide groove for small-diameter bar finishing mills according to claim 8, characterized in that: The target line spacing is the center distance between lines after the rolled piece is cut, and the convergence angle of the progressive spacing control channel is 3°-5°.

Images