Rolling mill entry guide device

Abstract

The application provides a rolling entrance guide device, which comprises a guide frame, two movable seats and pushing assemblies. The guide frame has a through cavity which is horizontally penetrated. The two movable seats are respectively slidably connected in the through cavity, and the two movable seats can be close to each other or away from each other. A guide wheel for guiding a billet is rotatably connected on the movable seat, and the guide wheel protrudes from the movable seat to the side of the shaft of the guide frame. The two pushing assemblies are respectively connected on the two side walls of the guide frame and press on the movable seats, and the pushing assemblies are used for driving the movable seats to move horizontally. The rolling entrance guide device provided by the application adjusts the distance between the two movable seats by arranging two pushing assemblies in the guide frame to respectively drive the two movable seats to be close to each other or away from each other, so that the distance between the guide wheels of the two movable seats can be adapted to the size specification of the billet, thereby meeting the rolling requirements of different specifications of the billet and ensuring the rolling quality of the billet.

Description

Technical Field

[0001] This invention belongs to the technical field of steel rolling inlet guide device structure, and more specifically, relates to a steel rolling inlet guide device. Background Technology

[0002] In steel production, guide devices are needed to guide the heat-treated rolled steel. These devices ensure the workpiece is accurately and smoothly introduced and removed from the roll passes according to a predetermined direction and state. To improve the efficiency of the rolling process, most existing guide devices use guide rollers for rolling guidance. These guide rollers are mostly fixed structures. While this improves the stability of the device, it prevents adjustment of the roller spacing according to the needs of steel rolling, significantly limiting the device's performance and making it unreliable. Summary of the Invention

[0003] The purpose of this invention is to provide a steel rolling inlet guide device that can adjust the spacing between guide rollers according to different requirements, and has good versatility.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a steel rolling mill inlet guide device, comprising:

[0005] The guide frame has a horizontally penetrating cavity;

[0006] Two movable seats are slidably connected in the through cavity. The two movable seats can move closer to each other or move away from each other. A guide wheel for guiding the steel billet is rotatably connected on the movable seat. The guide wheel protrudes from the movable seat on the axis side of the guide frame.

[0007] Two push components are respectively connected to the two side walls of the guide frame and extend to the axial side of the guide frame to press against the movable seat. The push components are used to drive the movable seat to move horizontally.

[0008] In one possible implementation, the driving component includes:

[0009] The drive sleeve is rotatably connected to the side wall of the guide frame and extends into the drive sleeve. The main shaft of the drive sleeve is set perpendicular to the main shaft of the through cavity. The inner circumferential wall of the drive sleeve is provided with internal threads.

[0010] The threaded column is threaded into the inside of the drive sleeve, and the threaded column can drive the movable seat to move horizontally under the rotation of the drive sleeve.

[0011] In some embodiments, the outer end of the drive sleeve is provided with a rotating seat extending to the outside of the guide frame. The rotating seat is rotatably engaged with the guide frame to drive the drive sleeve to rotate circumferentially.

[0012] In one possible implementation, a sealing plate is provided at one end of the drive sleeve near the rotating seat. The guide frame has several locking slots located on the outer periphery of the drive sleeve and spaced apart. A locking assembly for locking into the locking slots is rotatably connected inside the rotating seat. The locking assembly includes:

[0013] The locking rotary seat is rotatably connected inside the rotary seat and is coaxially arranged with the rotary seat;

[0014] The telescopic pusher is connected to the locking rotary seat via a rotating shaft that passes through the sealing plate, and the telescopic pusher can rotate circumferentially with the locking rotary seat.

[0015] At least two locking blocks are slidably connected to the outer periphery of the telescopic pusher. The locking blocks are disposed through the peripheral wall of the drive sleeve and are slidably engaged with the drive sleeve. The locking blocks can slide down to enter the locking groove or move out of the locking groove when the telescopic pusher is rotated.

[0016] In some embodiments, the telescopic pusher is a rhomboid block, and the peripheral wall of the telescopic pusher is provided with a circumferentially extending guide groove. The locking block is provided with a guide block that is slidably connected in the guide groove, and the outer end of the locking block is provided with an outwardly protruding locking tooth.

[0017] In one possible implementation, the circumferential wall of the rotating seat has a circumferentially through mounting cavity, and an elastic stabilizing component for keeping the locking block in an extended locked state is embedded in the mounting cavity. The elastic stabilizing component includes:

[0018] The arc-shaped arm is connected to the locking rotary seat at one end and extends along the circumference of the drive sleeve at the other end.

[0019] The spring-loaded component is connected to the drive sleeve at one end and extends circumferentially along the drive sleeve at the other end. The spring-loaded component is used to elastically push the arc-shaped arm to rotate the locking rotary seat until the locking block extends outward and locks in the locking groove.

[0020] In some embodiments, a first mounting plate extending radially is provided in the mounting cavity, a second mounting plate extending into the mounting cavity is connected to the locking pivot, the end of the spring member is connected to the first mounting plate and extends towards the second mounting plate, the end of the arc-shaped arm is connected to the second mounting plate and extends towards the first mounting plate, and the spring member is used to elastically press against the outer end face of the arc-shaped arm.

[0021] In some embodiments, the mounting cavity is provided with an arc-shaped sleeve for accommodating the spring-loaded component, and the arc-shaped arm can extend into the arc-shaped sleeve and slide in cooperation with the arc-shaped sleeve.

[0022] In one possible implementation, the guide frame is provided with a limiting hole that communicates with the locking groove. The limiting hole is located on the side of the locking groove away from the through cavity. The limiting hole is used to contact and cooperate with the outer end face of the drive sleeve to limit the axial position of the drive sleeve. The limiting hole is located in the inner ring of the locking groove.

[0023] In one possible implementation, the movable seat is provided with first slides extending from the axial side of the guide frame at both ends. The guide frame is provided with second slides extending away from the axial side of the guide frame and corresponding to the first slides. The first slides and the second slides slide in a sliding fit to limit the translation range of the movable seat.

[0024] Compared with the prior art, the rolling mill inlet guide device provided in this application embodiment adjusts the distance between the two movable seats by setting two pushing components in the guide frame to drive the two movable seats to move closer or further apart, so that the distance between the guide wheels of the two movable seats can be adapted to the size and specifications of the steel billet, so as to meet the rolling requirements of steel billets of different specifications, improve the versatility of the structure, and ensure the rolling quality of the steel billet. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a top sectional view of the steel rolling inlet guide device provided in an embodiment of the present invention;

[0027] Figure 2 Provided for embodiments of the present invention Figure 1 A partially enlarged structural diagram of section I;

[0028] Figure 3 Provided for embodiments of the present invention Figure 1 A partially enlarged structural diagram of section II;

[0029] Figure 4 This is a schematic diagram of the overall structure of the steel rolling inlet guide device provided in an embodiment of the present invention;

[0030] Figure 5 This is an embodiment of the present invention. Figure 3 A partial cross-sectional view of the central guide frame, drive sleeve, and locking assembly from another angle;

[0031] Figure 6 This is an embodiment of the present invention. Figure 5 Exploded view of the mid-range missile launcher, drive sleeve, and locking assembly;

[0032] Figure 7 This is an embodiment of the present invention. Figure 3A partial cross-sectional view of the rotating base, locking base, and elastic stabilizing component.

[0033] The following are the labeling elements in the figure:

[0034] 1. Guide frame; 11. Through cavity; 12. Locking groove; 13. Limiting hole; 14. Second slide; 141. Second limiting claw; 2. Movable seat; 21. Guide wheel; 22. First slide; 221. First limiting claw; 3. Pushing assembly; 31. Drive sleeve; 32. Threaded column; 33. Sealing plate; 4. Rotating seat; 41. Mounting cavity; 42. First mounting plate; 5. Locking assembly; 51. Locking rotary seat; 52. Telescopic pusher; 53. Locking block; 54. Guide groove; 55. Guide block; 56. Rotating shaft; 57. Locking tooth; 58. Second mounting plate; 59. Operating hole; 6. Elastic stabilizing assembly; 61. Arc arm; 62. Springback component; 63. Arc sleeve. Detailed Implementation

[0035] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0036] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a number" means two or more, unless otherwise explicitly specified.

[0037] Please refer to the following: Figures 1 to 7The present invention will now describe the steel rolling inlet guide device. The steel rolling inlet guide device includes a guide frame 1, two movable seats 2, and a pushing assembly 3. The guide frame 1 has a horizontally penetrating cavity 11. The two movable seats 2 are slidably connected in the penetrating cavity 11, and the two movable seats 2 can move closer to each other or further away from each other. A guide wheel 21 for guiding the steel billet is rotatably connected to the movable seat 2, and the guide wheel 21 protrudes from the movable seat 2 on the axial side of the guide frame 1. The two pushing assemblies 3 are respectively connected to the two side walls of the guide frame 1 and extend to the axial side of the guide frame 1 to press against the movable seats 2. The pushing assemblies 3 are used to drive the movable seats 2 to move horizontally.

[0038] Compared with the prior art, the steel rolling inlet guide device provided in this embodiment, by setting two pushing components 3 in the guide frame 1 to drive two movable seats 2 to move closer to each other or further away from each other, adjusts the distance between the two movable seats 2, so that the distance between the guide wheels 21 of the two movable seats 2 can be adapted to the size and specifications of the steel billet, so as to meet the rolling requirements of steel billets of different specifications, improve the versatility of the structure, and ensure the rolling quality of the steel billet.

[0039] Please refer to one possible implementation as well. Figures 1 to 7 The driving component 3 includes a driving sleeve 31 and a threaded post 32. The driving sleeve 31 is rotatably connected to the side wall of the guide frame 1 and extends into the interior of the driving sleeve 31. The main shaft of the driving sleeve 31 is perpendicular to the main shaft of the through cavity 11. The inner circumferential wall of the driving sleeve 31 is provided with internal threads. The threaded post 32 is threadedly connected to the interior of the driving sleeve 31. The threaded post 32 can drive the movable seat 2 to move horizontally under the rotation of the driving sleeve 31.

[0040] In this embodiment, a combination of a drive sleeve 31 and a threaded post 32 is used. The inner end of the threaded post 32 is adjacent to the movable seat 2, and the outer end is threadedly connected to the drive sleeve 31. Each movable seat 2 is rotatably connected to multiple guide wheels 21, which are spaced apart along the direction of the steel section. A material passage for the steel billet is formed between the guide wheels 21 of two movable seats 2.

[0041] When the rotating drive sleeve 31 is rotated, the threaded column 32 can move horizontally along the axial direction to drive the movable seat 2 and the guide wheel 21 to move closer to or further away from the axis of the guide frame 1, thereby adjusting the width of the material passage and making it suitable for rolling steel sections of different specifications and sizes.

[0042] In some embodiments, please refer to the following: Figures 1 to 7 The outer end of the drive sleeve 31 is provided with a rotating seat 4 extending to the outside of the guide frame 1. The rotating seat 4 is rotatably engaged with the guide frame 1 to drive the drive sleeve 31 to rotate circumferentially.

[0043] In this embodiment, the rotating seat 4 located on the outside of the guide frame is coaxially arranged and fixedly connected to the drive sleeve 31. The arrangement of the rotating seat 4 facilitates the rotational drive of the drive sleeve 31, improving the convenience of adjustment. By rotating the rotating seat 4, the drive sleeve 31 can be rotated circumferentially, which can drive the threaded column 32 and the movable seat 2 to move closer to or further away from the axis of the guide frame 1, improving the convenience of operation.

[0044] Please refer to one possible implementation as well. Figures 1 to 7 The drive sleeve 31 is sealed with a sealing plate 33 at one end near the rotating seat 4. The guide frame 1 is provided with a plurality of locking grooves 12 located on the outer periphery of the drive sleeve 31 and spaced apart. A locking assembly 5 for locking with the locking grooves 12 is rotatably connected inside the rotating seat 4. The locking assembly 5 includes a locking rotating seat 51, a telescopic pusher 52 and at least two locking blocks 53. The locking rotating seat 51 is rotatably connected inside the rotating seat 4 and is coaxially arranged with the rotating seat 4. The telescopic pusher 52 is connected to the locking rotating seat 51 through a rotating shaft 56 that passes through the sealing plate 33. The telescopic pusher 52 can rotate circumferentially with the locking rotating seat 51. At least two locking blocks 53 are slidably connected to the outer periphery of the telescopic pusher 52. The locking blocks 53 are arranged through the peripheral wall of the drive sleeve 31 and are slidably engaged with the drive sleeve 31. The locking blocks 53 can slide down to enter the locking groove 12 or move out of the locking groove 12 driven by the rotation of the telescopic pusher 52.

[0045] In this embodiment, a sealing plate 33 is provided at the outer end of the drive sleeve 31. The locking block 53 of the locking component 5 cooperates with any locking groove 12 to lock the circumferential position of the drive sleeve 31, ensuring the stability and reliability of the position of the movable seat 2, ensuring the effective guidance of the billet, and improving the rolling accuracy of the billet.

[0046] The guide frame is provided with multiple circumferentially arranged locking slots 12. The telescopic pusher 52 is fixedly connected to the locking rotating seat 51 through the rotating shaft 56. The locking rotating seat 51 can drive the telescopic pusher 52 to rotate circumferentially, thereby driving the locking block 53 on the outer periphery of the telescopic pusher 52 to slide outward until it extends out of the drive sleeve 31 and locks into a certain locking slot 12.

[0047] The telescopic pusher 52 can adopt a cam structure, an elliptical structure, or a rhomboid structure with varying lengths and widths, as long as it can meet the requirements of pushing the outer peripheral locking block 53 outward and retracting it inward.

[0048] The locking block 53 is disposed through the peripheral wall of the drive sleeve 31. The drive sleeve 31 is provided with a through hole for the locking block 53 to pass through. The through hole can limit the locking block 53, so that the locking block 53 can only slide radially along the rotating shaft 56. Under the driving action of the telescopic drive, the locking block 53 can retract into the through hole or extend out of the through hole.

[0049] When the locking block 53 retracts into the drive sleeve 31, the drive sleeve 31 can be rotated circumferentially. The locking block 53 and the telescopic pusher 52 follow the circumferential rotation of the drive sleeve 31 to adjust the position of the movable seat 2. When the drive sleeve 31 is rotated into position, the locking seat 51 is rotated to drive the telescopic pusher 52 to rotate, thereby allowing the locking block 53 to extend out of the through hole into the corresponding locking groove 12, completing the circumferential locking of the drive sleeve 31, ensuring the stability of the movable seat 2, and making the material passage suitable for the passage of steel billets of the corresponding specifications.

[0050] The telescopic pusher 52 can drive the locking block 53 to move radially, so as to switch between the two states of retraction unlocking and extension locking. This satisfies the adjustment requirements of the drive sleeve 31 on the threaded column 32, and also satisfies the positional stability of the drive sleeve 31 during operation, avoiding positional displacement of the movable block caused by the billet force, and facilitating the guarantee of the rolling quality of the steel section.

[0051] In some embodiments, please refer to the following: Figures 1 to 7 The telescopic pusher 52 is a rhomboid block. The peripheral wall of the telescopic pusher 52 is provided with a circumferentially extending guide groove 54. The locking block 53 is provided with a guide block 55 that is slidably connected in the guide groove 54. The outer end of the locking block 53 is provided with an outwardly protruding locking tooth 57.

[0052] In this embodiment, the telescopic pusher 52 is a rhombus-shaped block. The guide groove 54 on the peripheral wall of the rhombus block and the guide block 55 at the inner end of the locking block 53 form a limiting cooperation to ensure that the locking block 53 can effectively switch between the two states of retraction unlocking and extension locking during the rotation of the rhombus block.

[0053] Furthermore, in order to improve the smoothness of the extension process of the locking block 53 and achieve a good guiding effect, a locking tooth 57 is provided at the extension end of the locking block 53. The outer width of the locking tooth 57 is smaller than the inner width, which facilitates the effective guidance of the locking block 53 into the locking groove 12, ensuring the effective extension of the locking block 53, avoiding jamming during the extension process, and making the locking block 53 and the locking groove 12 form a reliable locking effect.

[0054] Please refer to one possible implementation as well. Figures 1 to 7The rotating seat 4 has a circumferentially through mounting cavity 41 inside its peripheral wall. The mounting cavity 41 is fitted with an elastic stabilizing component 6 for keeping the locking block 53 in an extended locked state. The elastic stabilizing component 6 includes an arc-shaped arm 61 and a spring-loaded member 62. One end of the arc-shaped arm 61 is connected to the locking rotating seat 51, and the other end extends circumferentially along the drive sleeve 31. One end of the spring-loaded member 62 is connected to the drive sleeve 31, and the other end extends circumferentially along the drive sleeve 31. The spring-loaded member 62 is used to elastically push the arc-shaped arm 61 to make the locking rotating seat 51 rotate until the locking block 53 extends outward and is locked in the locking groove 12.

[0055] In this embodiment, the mounting cavity 41 is provided inside the circumferential arm of the rotating seat 4 for mounting the elastic stabilizing component 6. The elastic stabilizing component 6 can keep the locking component 5 in the locked position in the natural state to avoid unlocking or loosening caused by the vibration force of the billet walking.

[0056] Specifically, the elastic stabilizing component 6 adopts a structure combining a spring-loaded component 62 and an arc-shaped arm 61. The spring-loaded component 62 is connected to the cavity wall of the mounting cavity 41, that is, it is installed on the rotating seat 4. The arc-shaped arm 61 is connected to the outer peripheral wall of the locking rotating seat 51. The spring-loaded component 62 forms an elastic pushing force on the arc-shaped arm 61. Under the action of the above-mentioned pushing force, the arc-shaped arm 61 drives the locking rotating seat 51 to move away from the spring-loaded component 62. This causes the locking rotating seat 51 to drive the telescopic pusher 52 to rotate relative to the driving sleeve 31 until the locking block 53 is locked in the locking groove 12, ensuring the reliable locking of the circumferential position of the driving sleeve 31. This, in turn, ensures the stability of the distance between the two movable seats 2 and achieves an effective guiding effect on the steel billet.

[0057] Specifically, the outer end face of the rotating base 4 is provided with an operation hole 59. The operation hole 59 can be set as a hexagonal hole with the same shape as the screwing tool, so as to facilitate the rotation drive by the screwing tool to realize the unlocking action of the locking block 53 and the locking groove 12.

[0058] In some embodiments, please refer to the following: Figures 1 to 7 The mounting cavity 41 is provided with a radially extending first mounting plate 42. The locking pivot 51 is connected to a second mounting plate 58 extending into the mounting cavity 41. The end of the spring member 62 is connected to the first mounting plate 42 and extends towards the second mounting plate 58. The end of the arc-shaped arm 61 is connected to the second mounting plate 58 and extends towards the first mounting plate 42. The spring member 62 is used to elastically press against the outer end face of the arc-shaped arm 61.

[0059] In this embodiment, to facilitate the installation of the spring-loaded component 62, a radially extending first mounting plate 42 is provided in the mounting cavity 41. One end of the spring-loaded component 62 is connected to the surface of the first mounting plate 42, and the other end extends towards the side of the arc-shaped arm 61. Similarly, a radially extending second mounting plate 58 is provided on the outer periphery of the locking rotary seat 51. The second mounting plate 58 extends through the inner wall of the rotating seat 4 into the mounting cavity 41. One end of the arc-shaped arm 61 is connected to the second mounting plate 58, and the other end abuts against the extended end of the spring-loaded component 62. When the drive sleeve 31 needs to be adjusted, the locking rotary seat 51 needs to be rotated to drive the arc-shaped arm 61 to squeeze the spring-loaded component 62. At this time, under the drive of the locking rotary seat 51, the telescopic pusher 52 drives the locking block 53 to retract into the drive sleeve 31, thereby unlocking the locking block 53 from the locking groove 12. This facilitates the subsequent rotational adjustment of the drive sleeve 31, thereby driving the movable seat 2 to move horizontally and achieve the adjustment function.

[0060] Based on the above structure, two sets of elastic stabilizing components 6 are provided at intervals along the circumference of the mounting cavity 41 to ensure uniform distribution in the circumferential direction of the mounting cavity 41 and improve the reliability of locking of the locking block 53.

[0061] In some embodiments, please refer to the following: Figures 1 to 7 The mounting cavity 41 is provided with an arc-shaped sleeve 63 for accommodating the spring-loaded component 62. The arc-shaped arm 61 can extend into the arc-shaped sleeve 63 and slide in cooperation with it. The arc-shaped sleeve 63 can axially constrain the spring-loaded component 62. The arc of the arc-shaped sleeve 63 and the arc of the arc-shaped arm 61 are consistent. When the arc-shaped arm 61 compresses the spring-loaded component 62, the arc-shaped arm 61 can extend into the arc-shaped sleeve 63 to ensure the accuracy of the compression direction and avoid structural deformation caused by unstable force on the spring-loaded component 62.

[0062] Please refer to one possible implementation as well. Figures 1 to 7 The guide frame 1 is provided with a limiting hole 13 communicating with the locking groove 12. The limiting hole 13 is located on the side of the locking groove 12 away from the through cavity 11. The limiting hole 13 is used to contact and cooperate with the outer end face of the drive sleeve 31 to limit the axial position of the drive sleeve 31. The limiting hole 13 is located on the inner ring of the locking groove 12. The limiting hole 13 can axially limit the drive sleeve 31 to prevent the drive sleeve 31 from circumferentially moving and affecting the stability of the position of the movable seat 2 and the guide wheel 21.

[0063] Based on this, the outer periphery of the rotating seat 4 is provided with a limiting protrusion ring that rotates with the side wall of the guide frame 1 to ensure that the rotating seat 4 can be reliably rotated and connected to the side wall of the guide frame 1, thereby driving the drive sleeve 31.

[0064] Please refer to one possible implementation as well. Figures 1 to 7The movable seat 2 is provided with first slides 22 extending from the axial side of the guide frame 1 at both ends. The guide frame 1 is provided with second slides 14 extending away from the axial side of the guide frame 1 and corresponding one-to-one with the first slides 22. The first slides 22 and the second slides 14 slide in cooperation to limit the translation range of the movable seat 2.

[0065] In this embodiment, the extended ends of the two first slide blocks 22 are respectively provided with first limiting claws 221 extending in opposite directions, and the extended ends of the second slide blocks 14 are respectively provided with second limiting claws 141 extending towards each other. The first limiting claws 221 and the second limiting claws 141 can press against each other to limit the translation range of the movable seat 2.

[0066] Usage process:

[0067] In its natural state, the spring-loaded component 62 presses against the arc-shaped arm 61 to cause the locking rotary seat 51 and the telescopic pusher 52 to rotate synchronously until the locking block 53 engages with the locking groove 12. When the drive sleeve 31 needs adjustment, the locking rotary seat 51 needs to be rotated to drive the arc-shaped arm 61 to press the spring-loaded component 62. At this time, under the drive of the locking rotary seat 51, the telescopic pusher 52 drives the locking block 53 to retract into the drive sleeve 31, thereby unlocking the locking block 53 from the locking groove 12. At this time, the drive rotary seat 4 rotates circumferentially to cause the drive sleeve 31 to rotate synchronously. The drive sleeve 31 drives the threaded column 32 and the movable seat 2 to adjust their positions to suit the rolling of steel sections of different specifications.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel rolling mill inlet guide device, characterized in that, include: The guide frame (1) has a horizontally penetrating cavity (11) and a plurality of locking slots (12) are provided on the guide frame (1). Two movable seats (2) are slidably connected in the through cavity (11). The two movable seats (2) can move closer to each other or move further away from each other. A guide wheel (21) for guiding the steel billet is rotatably connected on the movable seat (2). The guide wheel (21) protrudes from the movable seat (2) toward the axis of the guide frame (1). Two push components (3) are respectively connected to the two side walls of the guide frame (1) and extend toward the axis of the guide frame (1) to be connected to the movable seat (2). The push components (3) are used to drive the movable seat (2) to move horizontally. The pushing component (3) includes a driving sleeve (31) and a threaded column (32), and the threaded column (32) can drive the movable seat (2) to move horizontally under the rotation of the driving sleeve (31); The outer end of the drive sleeve (31) is provided with a rotating seat (4), and the rotating seat (4) is provided with a locking component (5). The locking component (5) includes a locking rotating seat (51), a telescopic pusher (52), and at least two locking blocks (53). The telescopic pusher (52) can rotate circumferentially with the locking rotating seat (51). The locking blocks (53) are disposed through the peripheral wall of the drive sleeve (31) and slide in cooperation with the drive sleeve (31). The locking blocks (53) can slide down under the drive of the telescopic pusher (52) to extend into the locking groove (12) or move out of the locking groove (12). The rotating seat (4) has an elastic stabilizing component (6) inside its peripheral wall. The elastic stabilizing component (6) includes an arc-shaped arm (61) and a spring-loaded component (62). The spring-loaded component (62) is used to elastically push the arc-shaped arm (61) so that the locking rotating seat (51) rotates until the locking block (53) extends outward and is locked in the locking groove (12).

2. The steel rolling mill inlet guide device as described in claim 1, characterized in that, The drive sleeve (31) is rotatably connected to the side wall of the guide frame (1) and extends into the drive sleeve (31). The main axis of the drive sleeve (31) is perpendicular to the main axis of the through cavity (11). The inner circumferential wall of the drive sleeve (31) is provided with internal threads. The threaded post (32) is threaded into the interior of the drive sleeve (31).

3. The steel rolling mill inlet guide device as described in claim 2, characterized in that, The rotating seat (4) extends to the outside of the guide frame (1), and the rotating seat (4) is rotatably engaged with the guide frame (1) to drive the drive sleeve (31) to rotate circumferentially.

4. The steel rolling mill inlet guide device as described in claim 3, characterized in that, The end of the drive sleeve (31) near the rotating seat (4) is sealed with a sealing plate (33); The locking rotating seat (51) is rotatably connected to the rotating seat (4) and is coaxially arranged with the rotating seat (4); The telescopic pusher (52) is connected to the locking pivot (51) via a pivot (56) that passes through the sealing plate (33); At least two locking blocks (53) are slidably connected to the outer periphery of the telescopic pusher (52).

5. The steel rolling mill inlet guide device as described in claim 4, characterized in that, The telescopic pusher (52) is a rhomboid block. The telescopic pusher (52) has a circumferentially extending guide groove (54) on its peripheral wall. The locking block (53) has a guide block (55) that is slidably connected in the guide groove (54). The outer end of the locking block (53) has an outwardly protruding locking tooth (57).

6. The steel rolling mill inlet guide device as described in claim 4, characterized in that, The rotating seat (4) has a circumferentially through mounting cavity (41) inside its peripheral wall, and the elastic stabilizing component (6) is embedded in the mounting cavity (41). One end of the arc-shaped arm (61) is connected to the locking rotary seat (51), and the other end extends circumferentially along the drive sleeve (31); The spring-loaded component (62) is connected at one end to the drive sleeve (31) and at the other end extends circumferentially along the drive sleeve (31).

7. The steel rolling mill inlet guide device as described in claim 6, characterized in that, The mounting cavity (41) is provided with a radially extending first mounting plate (42), and the locking pivot (51) is connected to a second mounting plate (58) extending into the mounting cavity (41). The end of the spring member (62) is connected to the first mounting plate (42) and extends towards the second mounting plate (58). The end of the arc-shaped arm (61) is connected to the second mounting plate (58) and extends towards the first mounting plate (42). The spring member (62) is used to elastically press against the outer end face of the arc-shaped arm (61).

8. The steel rolling mill inlet guide device as described in claim 6, characterized in that, The mounting cavity (41) is provided with an arc-shaped sleeve (63) for accommodating the spring-loaded component (62). The arc-shaped arm (61) can extend into the arc-shaped sleeve (63) and slide in cooperation with the arc-shaped sleeve (63).

9. The steel rolling mill inlet guide device as described in claim 4, characterized in that, The guide frame (1) is provided with a limiting hole (13) communicating with the locking groove (12). The limiting hole (13) is located on the side of the locking groove (12) away from the through cavity (11). The limiting hole (13) is used to contact and cooperate with the outer end face of the drive sleeve (31) to limit the axial position of the drive sleeve (31). The limiting hole (13) is located in the inner ring of the locking groove (12).

10. The rolling mill inlet guide device as described in any one of claims 1-9, characterized in that, The movable seat (2) has a first slide (22) extending toward the axis of the guide frame (1) at both ends. The guide frame (1) has a second slide (14) extending away from the axis of the guide frame (1) and corresponding to the first slide (22). The first slide (22) and the second slide (14) are slidably engaged to limit the translation range of the movable seat (2).

Images