A rolling guide device for a finishing rolling mill

Abstract

The present application relates to the technical fields of finishing rolling of steel, and discloses a rolling guide device for finishing rolling unit of steel, which comprises a guide cylinder, an adjusting mechanism, a guide wheel set and a feeding assembly. The adjusting mechanism and the guide wheel set are symmetrically arranged on both sides of the guide cylinder. The feeding assembly is fixedly installed on one end of the guide cylinder and located in the same vertical plane with the guide wheel set. Two oppositely arranged rotating rollers are rotatably installed on the other end of the guide cylinder. In the present application, the guide wheel set and the feeding assembly are arranged on the port of the guide cylinder to guide the feeding of the port, expand the guiding direction and range, and make the device adapt to metal billets of different sizes and shapes, improve the flexibility and applicability of the guiding, and make the material conveying and guiding more stable and accurate. The present application can effectively reduce the size deviation and surface defects of the product and improve the quality and processing precision of the product.

Description

Technical Field

[0001] This invention relates to the field of steel rolling finishing technology, specifically to a rolling guide device for steel rolling finishing mills. Background Technology

[0002] The rolling guide device in a steel finishing mill is a crucial piece of equipment used to guide and support metal billets during rolling. Its structural design must consider the accurate guidance and stable support of the metal billets, as well as adaptability to different process conditions. The rolling guide is one of the main pieces of equipment guiding steel slabs onto the continuous rolling mill. It maintains the stability of the slab during transmission by mounting a set of rollers on the roll shaft and adjusting the position of the rollers through a telescopic device. The rolling guide offers the following advantages: it reduces slab deformation and improves rolling accuracy; it reduces the load on the roll system and extends equipment life; and it increases rolling speed and production efficiency.

[0003] The existing rolling guide device for steel finishing mills has the following drawbacks: Its simple structure, relying solely on a conical inlet on the guide cylinder surface for material introduction, limits the guiding range and makes it unsuitable for metal billets of various sizes and shapes. Problems such as poor friction and uneven force distribution easily occur during material guidance, leading to unstable material guidance and a tendency for deviation or blockage. The lack of an effective internal conveying structure easily results in uneven material distribution within the guide cylinder, affecting material conveying accuracy and quality control, and reducing rolling precision and efficiency. The risk of material blockage or deviation during material guidance increases equipment failure rate and maintenance costs, while also increasing safety hazards for operators. Due to its unstable material guidance and conveying, it easily causes production line downtime and adjustments, affecting the stability and continuity of the production line, and reducing production efficiency and product quality.

[0004] In view of this, we have studied and improved the existing problems and provided a rolling guide device for a steel rolling mill to solve the current problems. The aim of this technology is to solve the problems and improve its practical value. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by the present invention is as follows: a rolling guide device for a steel rolling mill, comprising: a guide cylinder, an adjusting mechanism, a guide wheel set, and a feeding assembly. The adjusting mechanism and the guide wheel set are in two sets and are symmetrically arranged on both sides of the guide cylinder. The feeding assembly is fixedly installed at one end of the guide cylinder and is located in the same vertical plane as the guide wheel set. Two oppositely arranged rotating rollers are rotatably installed at the other end of the guide cylinder.

[0007] The adjustment mechanism includes a guide rail seat, a lifting frame, and a cantilever assembly movably mounted on the surface of the lifting frame. The surface of the guide rail seat is provided with a screw assembly for driving the lifting frame to slide up and down. The cantilever assembly includes a main cantilever, a movable suspension seat, an elastic connecting rod, and a linkage arm movably connecting the main cantilever and the movable suspension seat. The two ends of the elastic connecting rod are rotatably connected to the surfaces of the main cantilever and the movable suspension seat, respectively. One end of the main cantilever is rotatably mounted on the surface of the lifting frame. The guide wheel assembly includes a first wheel and a second wheel rotatably mounted on the surface of the movable suspension seat, and several pulley sets distributed on the surfaces of the first wheel and the second wheel. The feeding assembly includes a guide seat, a drive seat, a crank wheel, and a guide bar. There are two sets of crank wheels and guide bars arranged opposite to each other on the surface of the guide seat. The drive seat is embedded in the bottom surface of the guide seat to drive the two crank wheels to rotate. The surface of the crank wheel is provided with a pin that is offset from the center of the crank wheel, and the guide bar is rotatably sleeved on the surface of the crank wheel. One end of the guide bar is movably connected to a fixed connecting rod, and the other end of the fixed connecting rod is rotatably mounted on the surface of the guide seat.

[0008] In a preferred embodiment, the present invention can be further configured such that: the surface of the rotating roller is provided with a transmission bevel tooth, and a synchronous shaft is rotatably mounted on the inner side of the guide cylinder, and the two ends of the synchronous shaft are provided with bevel teeth that mesh with the surface of the transmission bevel tooth for synchronous transmission of the two rotating rollers.

[0009] In a preferred embodiment, the present invention can be further configured such that: the elastic link is a spring telescopic rod structure, and the elastic link is arranged parallel to the main cantilever, and the connection point between the linkage arm and the elastic link and the moving suspension seat rotates coaxially.

[0010] In a preferred embodiment, the present invention can be further configured such that: the diameter of the second wheel is smaller than the diameter of the first wheel, and the first and second wheels are arranged in parallel, and the pulley group is evenly distributed in a circumferential direction on the outer periphery of the first and second wheels.

[0011] In a preferred embodiment, the present invention may be further configured such that: the surfaces of the first wheel and the second wheel are provided with a plurality of bearing frames, the bearing frames are used to support the pulley assembly to perform rolling motion, the bearing frames and the pulley assembly are arranged at an angle, and a guide plate is provided between adjacent pulley assemblies on the surface of the second wheel.

[0012] In a preferred embodiment, the present invention may be further configured such that the pulley assembly includes two rollers and a belt located on the surface of the rollers, the two ends of the rollers being sleeved on the inner side of the bearing frame for rotational movement.

[0013] In a preferred embodiment, the present invention can be further configured such that: the guide seat is sloped and has a plurality of transmission rollers on its surface, and the port of the guide cylinder is tapered and gradually narrows along the material bar entry direction.

[0014] In a preferred embodiment, the present invention can be further configured such that: one end of the guide bar is provided with a guide head for actuating the movement of the material bar, the guide head being a rubber component with anti-slip texture on its surface.

[0015] The beneficial effects achieved by this invention are as follows:

[0016] 1. In this invention, by setting a guide wheel assembly and a feeding component structure at the guide tube port, the material feeding at the guide tube port is guided, expanding the guiding orientation and guiding range, so that the device can adapt to metal billets of different sizes and shapes, improving the flexibility and applicability of the guide, making material conveying and guiding more stable and accurate, effectively reducing product size deviation and surface defects, and improving product quality and processing accuracy.

[0017] 2. In this invention, by setting a novel guide wheel assembly structure, the guide wheel assembly moves up and down under the guidance of the adjustment mechanism, adapting to metal material plates of different sizes. The first and second wheel discs can rotate freely and their surfaces are connected by several pulley sets, which increases the guiding effect of the material in the guide cylinder and avoids the deviation or blockage caused by poor friction or uneven force, thereby improving the stability and reliability of material conveying.

[0018] 3. In this invention, the crank wheel is driven to rotate to realize the reciprocating inward motion of the guide bar, so that the material is actively input and actively fed into the inner side of the guide cylinder, compensating for the conveying friction loss between the material and the guide cylinder. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the surface structure of the guide tube according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the adjustment mechanism and guide wheel assembly structure according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the adjustment mechanism structure according to an embodiment of the present invention;

[0023] Figure 5 This is an exploded view of the guide wheel assembly according to an embodiment of the present invention;

[0024] Figure 6 This is an exploded view of the feeding assembly according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of a guide bar drive structure according to an embodiment of the present invention.

[0026] Figure label:

[0027] 100. Guide cylinder; 110. Feed hopper; 120. Rotary roller; 130. Synchronous shaft; 121. Transmission bevel gear;

[0028] 200. Adjustment mechanism; 210. Guide rail seat; 220. Lifting frame; 230. Cantilever assembly; 211. Screw assembly; 231. Main cantilever; 232. Moving suspension seat; 233. Elastic connecting rod; 234. Linkage arm;

[0029] 300. Guide wheel assembly; 310. First wheel disc; 320. Second wheel disc; 330. Pulley assembly; 321. Bearing bracket; 322. Guide plate;

[0030] 400, Feeding assembly; 410, Guide seat; 420, Drive seat; 430, Crank wheel; 440, Guide bar; 411, Drive roller; 441, Fixed connecting rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0032] The following describes, with reference to the accompanying drawings, some embodiments of a rolling mill guide device provided by the present invention.

[0033] Combination Figure 1-7 As shown, the present invention provides a rolling guide device for a steel rolling mill, comprising: a guide cylinder 100, an adjusting mechanism 200, a guide wheel set 300, and a feeding assembly 400. The adjusting mechanism 200 and the guide wheel set 300 are in two sets and are symmetrically arranged on both sides of the guide cylinder 100. The feeding assembly 400 is fixedly installed at one end of the guide cylinder 100 and is located in the same vertical plane as the guide wheel set 300. Two oppositely arranged rotating rollers 120 are rotatably installed at the other end of the guide cylinder 100.

[0034] The adjustment mechanism 200 includes a guide rail seat 210, a lifting frame 220, and a cantilever assembly 230 movably mounted on the surface of the lifting frame 220. The surface of the guide rail seat 210 is provided with a lead screw assembly 211 for driving the lifting frame 220 to slide up and down. The cantilever assembly 230 includes a main cantilever 231, a movable suspension seat 232, an elastic connecting rod 233, and a linkage arm 234 movably connecting the main cantilever 231 and the movable suspension seat 232. The two ends of the elastic connecting rod 233 are rotatably connected to the surfaces of the main cantilever 231 and the movable suspension seat 232, respectively. One end of the main cantilever 231 is rotatably mounted on the surface of the lifting frame 220. The guide wheel assembly 300 includes a first wheel 310 and a second wheel rotatably mounted on the surface of the movable suspension seat 232. The feeding assembly 400 includes a guide seat 410, a drive seat 420, a crank wheel 430, and a guide bar 440. The number of crank wheels 430 and guide bars 440 are two sets and are arranged opposite to each other on the surface of the guide seat 410. The drive seat 420 is embedded in the bottom surface of the guide seat 410 to drive the two crank wheels 430 to rotate. The surface of the crank wheel 430 is provided with a pin that is offset from the center of the crank wheel 430. The guide bar 440 is rotatably sleeved on the surface of the crank wheel 430. One end of the guide bar 440 is movably connected to the oil-fixed connecting rod 441, and the other end of the fixed connecting rod 441 is rotatably mounted on the surface of the guide seat 410.

[0035] In this embodiment, the surface of the rotating roller 120 is provided with a transmission bevel tooth 121, and a synchronous shaft 130 is rotatably mounted on the inner side of the guide cylinder 100. The two ends of the synchronous shaft 130 are provided with bevel teeth that mesh with the surface of the transmission bevel tooth 121 for synchronous transmission of the two rotating rollers 120.

[0036] In this embodiment, the elastic link 233 is a spring telescopic rod structure, and the elastic link 233 is arranged in parallel with the main cantilever 231. The connection point between the linkage arm 234 and the elastic link 233 and the moving suspension seat 232 rotates coaxially.

[0037] Specifically, the elastic link 233 provides elastic support for the dynamic suspension seat 232 and the guide wheel assembly 300, which can prevent the material strip from rigidly colliding with the surface of the guide wheel assembly 300 and change the orientation of the guide wheel assembly 300 to guide the material strip.

[0038] In this embodiment, the diameter of the second wheel 320 is smaller than that of the first wheel 310, and the first wheel 310 and the second wheel 320 are arranged in parallel. The pulley group 330 is evenly distributed in a circumferential direction on the outer periphery of the first wheel 310 and the second wheel 320.

[0039] Specifically, two first discs 310 and second discs 320 of different diameters are arranged in parallel and combined with several pulley sets 330 to form a conical guide wheel structure to guide the movement of the material strip.

[0040] In this embodiment, the surfaces of the first wheel 310 and the second wheel 320 are provided with a plurality of bearing frames 321. The bearing frames 321 are used to support the pulley assembly 330 to perform rolling motion. The bearing frames 321 and the pulley assembly 330 are arranged at an angle. A guide plate 322 is provided between adjacent pulley assemblies 330 on the surface of the second wheel 320.

[0041] Specifically, the belt pulley assembly 330 is arranged at an angle using an inclined bearing bracket 321, thereby better guiding the movement of the material strip.

[0042] Furthermore, the pulley assembly 330 includes two rollers and a belt located on the surface of the rollers, with both ends of the rollers sleeved on the inner side of the bearing bracket 321 for rotational motion.

[0043] In this embodiment, the guide seat 410 is sloped and has several drive rollers 411 on its surface, and the port of the guide cylinder 100 is tapered and gradually narrows along the material bar entry direction.

[0044] In this embodiment, one end of the guide bar 440 is provided with a guide head for moving the material bar. The guide head is a rubber component and has anti-slip ridges on its surface.

[0045] Working principle and usage process of this invention:

[0046] The rolling guide device is fixed at the front end of the steel finishing mill and the rotating roller 120 is arranged parallel to the pressure roller of the steel finishing mill. When the material is conveyed manually or by conveyor belt, the end of the material strip can contact the surface of the guide wheel group 300 when it is deviating from the port of the guide cylinder 100. The elastic connecting rod 233 provides elastic support for the moving suspension seat 232 and the guide wheel group 300. The guide wheel group 300 can elastically retract when in contact with the end of the material strip and guide the end of the material strip to slide along the surface of the guide wheel group 300. The guide wheel group 300 as a whole can rotate, and in conjunction with the rotation of several pulley groups 330, the material strip slides along the surface of the guide wheel group 300 with low resistance, so that the material strip enters the inner side of two opposite guide wheel groups 300, thereby accurately feeding it into the interior of the guide cylinder 100, expanding the guiding orientation and guiding range, so that the device can adapt to metal billets of different sizes and shapes, improving the flexibility and applicability of the guidance, and making the material conveying and guiding more stable and accurate.

[0047] During the guiding motion, the drive seat 420 drives the two crank wheels 430 to rotate synchronously, and the two guide bars 440 on the surface swing alternately. The friction between the end of the guide bar 440 and the surface of the material bar gives the material bar a certain conveying force to compensate for the kinetic energy of the material bar. The material bar is actively conveyed into the interior of the guide cylinder 100 and passes through, thus completing the entire material bar guiding work.

[0048] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rolling guide device for a finishing rolling mill train for rolling steel, characterized in that, include: The guide cylinder (100), adjusting mechanism (200), guide wheel set (300) and feeding assembly (400) are provided. The adjusting mechanism (200) and guide wheel set (300) are in two sets and symmetrically arranged on both sides of the guide cylinder (100). The feeding assembly (400) is fixedly installed at one end of the guide cylinder (100) and is located in the same vertical plane as the guide wheel set (300). Two oppositely arranged rotating rollers (120) are rotatably installed at the other end of the guide cylinder (100). The adjustment mechanism (200) includes a guide rail seat (210), a lifting frame (220), and a cantilever assembly (230) movably mounted on the surface of the lifting frame (220). The surface of the guide rail seat (210) is provided with a screw assembly (211) for driving the lifting frame (220) to slide up and down. The cantilever assembly (230) includes a main cantilever (231), a movable suspension seat (232), an elastic connecting rod (233), and a linkage arm (234) movably connecting the main cantilever (231) and the movable suspension seat (232). The two ends of the elastic connecting rod (233) are rotatably connected to the surfaces of the main cantilever (231) and the movable suspension seat (232), respectively. One end of the main cantilever (231) is rotatably mounted on the surface of the lifting frame (220). The guide wheel assembly (300) includes a first wheel disc (310) and a second wheel disc rotatably mounted on the surface of the movable suspension seat (232). (320) and a plurality of pulley sets (330) distributed on the surfaces of the first wheel (310) and the second wheel (320). The feeding assembly (400) includes a guide seat (410), a drive seat (420), a crank wheel (430) and a guide bar (440). The number of the crank wheel (430) and the guide bar (440) are two sets and arranged opposite to each other on the surface of the guide seat (410). The drive seat (420) is embedded in the bottom surface of the guide seat (410) to drive the two crank wheels (430) to rotate. The surface of the crank wheel (430) is provided with a pin that deviates from the center of the crank wheel (430). The guide bar (440) is rotatably sleeved on the surface of the crank wheel (430). One end of the guide bar (440) is movably connected to a fixed connecting rod (441). The other end of the fixed connecting rod (441) is rotatably installed on the surface of the guide seat (410).

2. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 1, characterized in that, The surface of the roller (120) is provided with a transmission bevel tooth (121), and a synchronous shaft (130) is rotatably mounted on the inner side of the guide cylinder (100). Both ends of the synchronous shaft (130) are provided with bevel teeth that mesh with the surface of the transmission bevel tooth (121) for synchronous transmission of the two rollers (120).

3. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 1, characterized in that, The elastic link (233) is a spring telescopic rod structure, and the elastic link (233) is arranged in parallel with the main cantilever (231).

4. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 1, characterized in that, The diameter of the second wheel (320) is smaller than that of the first wheel (310), and the first wheel (310) and the second wheel (320) are arranged in parallel. The pulley group (330) is evenly distributed in a circumferential direction on the outer periphery of the first wheel (310) and the second wheel (320).

5. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 1, characterized in that, The first wheel (310) and the second wheel (320) are provided with a plurality of bearing brackets (321), the bearing brackets (321) are used to support the pulley group (330) to perform rolling motion, the bearing brackets (321) and the pulley group (330) are arranged in an inclined direction, and a guide plate (322) is provided between adjacent pulley groups (330) on the surface of the second wheel (320).

6. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 5, wherein The pulley assembly (330) includes two rollers and a belt located on the surface of the rollers. The two ends of the rollers are sleeved on the inner side of the bearing frame (321) and rotate on their own.

7. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 1, wherein The guide seat (410) is sloping and has several drive rollers (411) on its surface. The port of the guide cylinder (100) is tapered and gradually narrows along the direction of material entry.

8. A rolling guide device for a finishing rolling mill of a steel rolling mill according to claim 1, characterized in that, One end of the guide bar (440) is provided with a guide head for moving the material bar. The guide head is a rubber component and has anti-slip ridges on its surface.

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