Rolling mill outlet guide plate

Abstract

The utility model discloses a rolling mill outlet guide plate which is arranged behind a roller of a rolling mill and comprises a driving assembly, a movable guide plate, a guide seat plate and a fixed guide plate, and the two ends of the fixed guide plate are fixedly connected to a rolling mill rack and located behind an outlet of the lower roller. The movable guide plate is arranged between the roller and the fixed guide plate, the two ends of the movable guide plate are connected to the guide seat plates in a guiding and sliding mode respectively, and the guide seat plates are fixedly connected to the inner side wall of the rolling mill rack. The driving assembly is installed on the rolling mill rack and can drive the movable guide plate to move front and back. By adopting the matching mode of the movable guide plate and the fixed guide plate, the threading difficulty is reduced, and the manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal rolling mills, in particular to a rolling mill outlet guide plate. Background Art

[0002] During the rolling process, the guide plate of the aluminum strip rolling mill can guide the contour trajectory of the aluminum strip in the rolling mill, ensuring that the aluminum strip is rolled according to the predetermined path to obtain the required shape and size.

[0003] The existing guide plates in the exit direction of the rolling mill often adopt a fixed exit guide plate that is fixedly connected to the rolling mill frame and is set obliquely. Although the fixed exit guide plate is as close to the rear of the roller as possible, in order to ensure the replaceability of rollers of different diameters, the front end of the exit guide plate will inevitably leave a gap of a certain width with the roller. However, when the thickness of the aluminum strip is relatively small, during the process of threading the strip from front to back, the strip head is likely to go down along the lower roller and enter the gap with the front end of the exit guide plate, and cannot be smoothly bridged to the exit guide plate. In the actual threading process, at least two operators are required to work together. One operator pushes the strip at the feed end of the rolling mill, and the other operator uses simple tools such as wooden boards to lift the strip head upwards so that it overlaps with the top surface of the exit guide plate before continuing to thread the strip.

[0004] In order to overcome the above problems, a rolling mill exit guide is needed. Utility Model Content

[0005] The utility model aims to provide a rolling mill outlet guide plate, which adopts a movable guide plate and a fixed guide plate matching mode, reduces the difficulty of belt threading, and saves manpower.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The utility model discloses a rolling mill outlet guide plate, which is arranged behind the rolling mill rolls, and comprises a driving assembly, a movable guide plate, a guide seat plate and a fixed guide plate, wherein both ends of the fixed guide plate are fixedly connected to the rolling mill frame and are located below and behind the rolling mill roll outlet; the movable guide plate is arranged between the rolling mill rolls and the fixed guide plate, and both ends of the movable guide plate are respectively connected to one of the guide seat plates for guiding and sliding, and the guide seat plate is fixedly connected to the inner side wall of the rolling mill frame; the driving assembly is installed on the rolling mill frame and can drive the movable guide plate to move back and forth.

[0008] Furthermore, the driving assembly includes a support beam and an action cylinder. The two ends of the transversely arranged support beam are connected to the inner wall of the rolling mill frame through a flange plate. Two pin seats are provided on the top surface of the support beam, and the pin seats are respectively pin-connected to the middle part of one of the action cylinders; the two ends of the bottom front end of the movable guide plate are respectively provided with traction heads, and the piston rod end extending forward of the action cylinder is pin-connected to the traction heads.

[0009] Furthermore, guide rail grooves with a lower front and a higher rear are provided on the side wall plates at both ends of the movable guide plate, and guide rail bars that slide in the guide rail grooves are provided on the inner side wall of the guide seat plate.

[0010] Furthermore, wear-resistant strips are attached to the three wall surfaces of the guide rail groove.

[0011] Furthermore, it also includes a front limiting structure, which includes a limiting block and a limiting top screw. The front end of the top face of the guide seat plate is fixedly connected to a threaded hole plate, and the limiting top screw is threadedly connected to the threaded hole of the threaded hole plate; the limiting block is fixedly connected to the two ends of the rear part of the top face of the movable guide plate, and the front end face of the limiting block can abut against the limiting top screw nut.

[0012] Furthermore, it also includes a rear limiting component, which includes a proximity switch and a trigger plate, and the trigger plate is installed on the side wall of one end of the rear bottom of the movable guide plate; the proximity switch is installed on the top surface of the support beam through a small support, and the trigger plate can slide above the proximity switch sensor head.

[0013] Furthermore, it also includes a jet assembly, two of which are arranged at the two ends below the rear of the fixed guide plate, the air outlet of the jet assembly faces upward and the compressed air flow is sprayed to the edge of the bottom surface of the rolled strip through the clearance hole of the fixed guide plate.

[0014] Furthermore, the jet assembly includes an air guide component, an adapter plate, an outer sleeve, a reinforcement plate and a positioning screw. The air guide component that guides compressed air is installed on the adapter plate through a pipe clamp, and the outer sleeve is fixedly connected between the adapter plate and the reinforcement plate; the positioning screw is threadedly connected to the threaded holes on the reinforcement plate and the side wall of the outer sleeve, and the positioning screw can be pushed into the hole in the outer sleeve; a supporting cross tube is horizontally arranged below the rear of the fixed guide plate, and the outer sleeve guide is slidingly sleeved on the supporting cross tube; the number of the clearance holes is multiple and they are symmetrically arranged along the center line of the strip conveying.

[0015] Furthermore, the air-guiding component includes an air-guiding pipe, a ball joint and a nozzle. Both ends of the air-guiding pipe are pipe joints for connecting the air circuit. The air-guiding pipe is arranged parallel to the supporting cross pipe and is installed on the adapter plate through a pipe clamp; the nozzle is connected to the middle position of the air-guiding pipe through the ball joint that can guide air.

[0016] The utility model also discloses a rolling mill outlet guide working method, which uses any one of the rolling mill outlet guides described above to assist the strip head of the rolled strip in threading.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are:

[0018] The present invention's rolling mill exit guide, with movable and fixed guides separately arranged front and back, can increase the guiding area for the rolled strip, avoid bending, and provide excellent stability. The drive assembly drives the movable guide back and forth, allowing it to move forward and closer to the rollers during strip threading, reducing the gap between them and preventing the strip from getting stuck. The provision of wear-resistant pads increases the guide's service life, and the chamfered front end allows it to be as close to the rollers as possible, achieving a better effect on threading thinner aluminum strips. The present invention utilizes a combination of movable and fixed guides, reducing the difficulty of strip threading and saving manpower.

[0019] Furthermore, by providing two linked cylinders to drive the movable guide, the guide can be pushed and pulled stably without deflection. The pin-connected cylinders minimize the impact of installation errors on the guide's trajectory. The guide grooves and rails provide a large guiding area and high strength, ensuring precise movement of the guide. The addition of wear-resistant strips between the friction surfaces facilitates maintenance and replacement, extending the equipment's service life. A stop block and a stop screw are used to limit the front end position. Adjusting the stop screw's forward and backward position allows for fine-tuning of the guide's forwardmost position, flexibly adapting to rollers of varying diameters. A lock nut secures the stop screw against the threaded plate, preventing it from loosening. The rear stop member limits the movable guide's rearward movement, ensuring stable guidance of the strip during normal strip rolling in conjunction with the fixed guide. Air jet assemblies are added on both sides of the strip's lower edge to remove rolling oil flowing over the strip's top surface, preventing it from continuing to travel backward with the strip. The nested support cross tube and outer sleeve allow the outer sleeve to slide along the support cross tube, enabling movement across the strip width. This means the jet assembly's installation position can flexibly adapt to the strip width. Pipe joints are installed at both ends of the air guide tube to facilitate air flow and ventilation. The nozzle is connected to the air guide tube via a ball joint, allowing for flexible adjustment of the nozzle's orientation to achieve optimal jet degreasing results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model when the exit guide plate of the rolling mill is in a retracted state;

[0022] Figure 2 This is a schematic diagram of the main structure of the utility model showing the rolling mill outlet guide plate ejecting state;

[0023] Figure 3 This is a schematic diagram of the top view of the rolling mill outlet guide plate of the utility model;

[0024] Figure 4 This is a front view structural diagram of the guide seat plate in the utility model;

[0025] Figure 5 This is a schematic cross-sectional view of the junction of the movable guide plate and the guide seat plate in the present invention;

[0026] Figure 6 This is a schematic diagram of the main structure of the jet assembly in the utility model;

[0027] Figure 7 for Figure 6 Schematic diagram of the structure viewed from the middle A direction;

[0028] Figure 8 This is a schematic diagram of the installation structure of the working cylinder in the utility model.

[0029] Explanation of the accompanying reference numerals: 1. Support beam; 101. Pin seat; 2. Action cylinder; 3. Movable guide plate; 301. Traction head; 302. Limit block; 303. Pad; 304. Guide rail groove; 4. Guide seat plate; 401. Guide rail; 402. Limiting screw; 5. Fixed guide plate; 501. Support cross tube; 502. Make way hole; 6. Jet assembly; 601. Air guide pipe; 602. Ball joint seat; 603. Nozzle; 604. Adapter plate; 605. Outer sleeve; 606. Reinforcement plate; 607. Positioning screw; 7. Proximity switch; 701. Small support; 8. Roller; 9. Rolling mill frame. DETAILED DESCRIPTION

[0030] The core of the utility model is to provide a rolling mill outlet guide plate, which adopts a movable guide plate and a fixed guide plate in a coordinated manner, thereby reducing the difficulty of belt threading and saving manpower.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of the main structure of the utility model when the exit guide plate of the rolling mill is in a retracted state; Figure 2 This is a schematic diagram of the main structure of the utility model showing the rolling mill outlet guide plate ejecting state; Figure 3 This is a schematic diagram of the top view of the rolling mill outlet guide plate of the utility model; Figure 4 This is a front view structural diagram of the guide seat plate in the utility model; Figure 5 This is a schematic cross-sectional view of the junction of the movable guide plate and the guide seat plate in the present invention; Figure 6 This is a schematic diagram of the main structure of the jet assembly in the utility model; Figure 7 for Figure 6 Schematic diagram of the structure viewed from the middle A direction; Figure 8 This is a schematic diagram of the installation structure of the working cylinder in the utility model.

[0034] In one embodiment, Figures 1 to 8 As shown, the rolling mill exit guide of the present invention is arranged behind the rollers 8 of the rolling mill and includes a drive assembly, a movable guide 3, a guide seat plate 4, and a fixed guide 5. The fixed guide 5 is fixedly connected to the rolling mill frame 9 at both ends and is located behind the exit of the lower roller 8. Flange plates for bolt connection are provided at both ends of the fixed guide 5, that is, they are installed by flange bolts. The movable guide 3 is arranged between the rollers 8 and the fixed guide 5. There are two guide seat plates 4 and they are symmetrically arranged along the center line of the rolled strip conveying. The movable guide 3 is respectively connected to a guide seat plate 4 at both ends for sliding guidance. The guide seat plate 4 is bolted to the inner wall of the rolling mill frame 9. The drive assembly is installed on the rolling mill frame 9 and can drive the movable guide 3 to move back and forth.

[0035] Specifically, if Figures 1 to 3As shown, the top surfaces of the movable guide plate 3 and the fixed guide plate 5 are both tilted, with the front lower and the rear higher. A backing strip 301 is fixedly connected to the top of each of the movable guide plate 3 and the fixed guide plate 5. The backing strip 301 is arranged longitudinally. The backing strip 301 is made of wear-resistant steel and is evenly spaced along the width of the guide plate.

[0036] Specifically, if Figure 1 and Figure 2 As shown, the front end bottom edge of the pad 301 on the movable guide plate 3 is provided with an oblique chamfer.

[0037] The movable guide plate 3 and the fixed guide plate 5, which are arranged separately at the front and rear ends, increase the guiding area for the rolled strip, avoid bending, and improve stability. The drive assembly drives the movable guide plate 3 to move forward and backward, and when threading the strip, the movable guide plate 3 moves forward close to the roller 8 to reduce the gap between them and avoid the strip head from getting stuck. The provision of wear-resistant pads 301 can extend the service life of the guide plate, and the beveled chamfer at the front end allows it to be as close to the roller 8 as possible, which is more effective for threading thinner aluminum strips.

[0038] In a specific embodiment of the present invention, Figure 1 、 Figure 2 and Figure 8 As shown, the drive assembly comprises a support beam 1 and two cylinders 2, two of which operate in tandem. The transverse support beam 1 is connected to the inner wall of the rolling mill frame 9 at both ends via flange plates. Two pin holders 101 are located on the top surface of the support beam 1, each pinned to the middle portion of a cylinder 2. Pulling lugs 301 are located at each end of the front bottom of the movable guide plate 3. The forward-extending piston rod ends of the cylinders 2 are pinned to the pulling lugs 301 via lug holders.

[0039] Obviously, the working cylinder 2 can be replaced by a hydraulic cylinder or a pneumatic cylinder, or even an electric push rod. Similar simple replacement methods fall within the protection scope of the present utility model.

[0040] By setting up two linked action cylinders 2 to drive the movable guide plate 3, the movable guide plate 3 can be pushed and pulled stably without deviation; the action cylinders 2 connected by the pin shaft can reduce the influence of installation errors on the motion trajectory accuracy of the movable guide plate 3.

[0041] In a specific embodiment of the present invention, Figures 1 to 5 As shown, guide rail grooves 304 with a lower front and a higher rear are provided on the side wall plates at both ends of the movable guide plate 3, and guide rail bars 401 that slide in the guide rail grooves 304 are provided on the inner side wall of the guide seat plate 4.

[0042] Specifically, wear-resistant strips are attached to the three wall surfaces of the guide rail groove 304 , and the wear-resistant strips are in frictional contact with the wall surface of the guide rail bar 401 .

[0043] Obviously, a linear guide rail combined with a ball slider or a guide rod combined with a guide sleeve can also be used between the movable guide plate 3 and the guide seat plate 4. The guiding strength is just slightly worse, but it can still play the basic guiding role. Similar simple deformation and replacement methods all fall within the protection scope of the present utility model.

[0044] By providing the guide groove 304 and the guide bar 401, the guide area is large and the guide strength is high, thereby ensuring the moving accuracy of the movable guide plate 3. By adding the wear-resistant strip between the friction surfaces, maintenance and replacement are facilitated, thereby increasing the service life of the equipment.

[0045] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the rolling mill exit guide plate of the present invention also includes a front stop structure comprising a stop block 302 and a stop screw 402. A threaded plate is welded to the front end of the top of the guide plate 4. The stop screw 402 is threaded into a threaded hole in the plate and is arranged longitudinally. The stop blocks 302 are welded to both ends of the rear end of the top surface of the movable guide plate 3. The front end of the stop block 302 can abut against the nut of the stop screw 402.

[0046] Specifically, a lock nut is threadedly connected to the limiting top screw 402, and the lock nut tightens the limiting top screw 402 onto the threaded hole plate.

[0047] The front end is limited by the cooperation of the limit block 302 and the limit screw 402. The front and rear positions of the limit screw 402 can be adjusted to achieve fine-tuning of the front end limit position of the movable guide plate 3, which can flexibly adapt to rollers 8 of different diameters for threading. The limit screw 402 is tightened against the threaded hole plate by the lock nut to prevent the limit screw 402 from loosening.

[0048] In one embodiment of the present invention, the mill exit guide further includes a rear stopper, comprising a proximity switch 7 and a trigger plate. The trigger plate is mounted on the sidewall of one end of the rear bottom of the movable guide 3. The proximity switch 7 is mounted on the top surface of the support beam 1 via a small support 701. The trigger plate can slide above the sensor head of the proximity switch 7. The proximity switch 7 is electrically connected to the mill's electrical control system to ensure that the movable guide 3 is retracted during normal strip rolling.

[0049] By setting the rear limiting member, the backward limit position of the movable guide plate 3 can be limited, ensuring that the fixed guide plate 5 stably guides the strip during normal strip rolling.

[0050] In a specific embodiment of the present invention, Figures 1 to 3 、 Figure 6 and Figure 7 As shown, the rolling mill exit guide plate of the present invention further includes two air jet assemblies 6, which are located at both ends of the lower rear portion of the fixed guide plate 5. The air outlets of the air jet assemblies 6 face upward, and the compressed air flow passes through the clearance holes 502 of the fixed guide plate 5 and is sprayed to the bottom edge of the rolled strip, with the air flow blowing obliquely outward.

[0051] During the strip rolling process, rolling oil is often sprayed onto the rolls to improve rolling quality. This oil will transfer to the strip. If the remaining oil on the strip is not cleaned, it will contaminate the entire production line. Furthermore, noticeable oil flow during coiling will affect the product's appearance.

[0052] By adding the jet assembly 6 on both sides of the lower part of the strip, the rolling oil flowing over from the top surface of the strip can be blown off to prevent the rolling oil from continuing to be transported backward along with the strip.

[0053] Specifically, if Figure 6 and Figure 7 As shown, the jet assembly 6 includes an air guide component, an adapter plate 604, an outer sleeve 605, a reinforcement plate 606, and a positioning screw 607. The air guide component for guiding compressed air is installed on the adapter plate 604 via a pipe clamp, and the outer sleeve 605 is welded between the adapter plate 604 and the reinforcement plate 606. The positioning screw 607 is threaded into the threaded holes on the side walls of the reinforcement plate 606 and the outer sleeve 605, and the positioning screw 607 can be pushed into the hole in the outer sleeve 605. A supporting cross tube 501 is arranged horizontally below the rear of the fixed guide plate 5. The two ends of the supporting cross tube 501 are welded to the inner wall of the end side plate of the fixed guide plate 5, and the outer sleeve 605 is guided and slidably connected to the supporting cross tube 501. In a specific embodiment, the supporting cross tube 501 and the outer sleeve 605 are both square tubes and can be nested. There are multiple clearance holes 502 and they are symmetrically arranged along the center line of the strip conveying.

[0054] Specifically, if Figure 6 and Figure 7 As shown, a lock nut is also threadedly connected to the positioning screw 607, and the lock nut tightens the positioning screw 607 onto the reinforcing plate 606.

[0055] By nesting the support transverse tube 501 and the outer sleeve 605, the outer sleeve 605 can slide along the support transverse tube 501, thereby achieving movement along the rolling width direction. In other words, the installation position of the jet assembly 6 can flexibly adapt to the width of the strip.

[0056] Specifically, if Figure 6 and Figure 7As shown, the air guide component includes an air guide tube 601, a ball joint 602, and a nozzle 603. The air guide tube 601 has pipe joints at both ends for connecting to the air path. The air guide tube 601 is arranged parallel to the supporting cross tube 501 and is mounted on the adapter plate 604 via pipe clamps. There are two pipe clamps, one at each end. The nozzle 603 is connected to the middle position of the air guide tube 601 via the ball joint 602 that can guide air.

[0057] Pipe joints are provided at both ends of the air guide pipe 601 to facilitate the connection of the air path and achieve ventilation; the nozzle 603 is connected to the air guide pipe 601 through the ball joint seat 602, and the direction of the nozzle 603 can be flexibly adjusted to achieve a better air jet degreasing effect.

[0058] The working principle of the exit guide of the rolling mill of the present invention is as follows: before threading the rolled thin strip, the operator first needs to determine the limit position of the forward movement of the movable guide plate 3 according to the diameter of the lower roller 8, and operate the human-machine interface panel of the equipment. In manual mode, the cylinder 2 is gradually pushed out, driving the movable guide plate 3 to move slowly forward. When the front end of the pad 301 moves to the appropriate distance from the rear wall of the roller 8, this distance should be less than the thickness of the strip after rolling, and the cylinder 2 stops. The limit screw 402 of the front limit structure is manually adjusted and rotated counterclockwise so that the nut of the limit screw 402 contacts the front face of the limit block 302, locking the lock nut of the limit screw 402 to the threaded hole plate. The operator operates the human-machine interface panel in automatic mode to switch the retracted state and the ejected state of the movable guide plate 3 to observe whether the movement is flexible and whether the limit is normal. During the threading operation of a thin rolled strip, the operator controls the HMI panel from the retracted state to the ejected state. Cylinder 2 extends, driving the movable guide plate 3 forward along the guide rail 401 to the threading position. The gap between the movable guide plate 3 and roller 8 is now at its narrowest. The operator manually feeds the strip through the inlet of roller 8. After the strip head passes through roller 8, it passes over the movable guide plate 3 and then the fixed guide plate 5. After the threading operation is completed and before normal rolling, the operator controls the HMI panel from the ejected state to the retracted state. Cylinder 2 retracts, driving the movable guide plate 3 back to the normal guiding position, and proximity switch 7 is triggered to stop the rolling process. During normal rolling, the outlet of the air jet assembly 6 sprays compressed air upward, and the airflow is sprayed through the clearance hole 502 to the bottom edge of the rolled strip, removing any loose rolling oil.

[0059] In summary, the rolling mill exit guide of the present invention, with its movable guide plate 3 and fixed guide plate 5 arranged separately in front and back, increases the guiding area for the rolled strip, prevents bending, and provides excellent stability. The drive assembly drives the movable guide plate 3 forward and backward, allowing it to move closer to the roller 8 during strip threading, reducing the gap between them and preventing the strip from getting stuck. The wear-resistant pad 301 improves the guide plate's service life, and the chamfered front end allows it to be as close to the roller 8 as possible, effectively improving the threading of thinner aluminum strips. Furthermore, the two linked cylinders 2 drive the movable guide plate 3, ensuring stable pushing and pulling without deviation. The pinned connection of the cylinders 2 reduces the impact of installation errors on the accuracy of the movable guide plate 3's trajectory. The guide rail grooves 304 and guide rails 401 provide a large guiding area and high guiding strength, ensuring the precise movement of the movable guide plate 3. The addition of the wear-resistant strips between the friction surfaces facilitates maintenance and replacement, extending the equipment's service life. The front end is limited by the cooperation of the limit block 302 and the limit screw 402. By adjusting the front and rear positions of the limit screw 402, the front extreme position of the movable guide plate 3 can be fine-tuned, allowing flexible adaptation to rollers 8 of different diameters for strip threading. The limit screw 402 is tightened against the threaded hole plate by a lock nut to prevent it from loosening. The rear limit member can be used to limit the rearward limit position of the movable guide plate 3, ensuring stable guidance of the strip during normal strip rolling in conjunction with the fixed guide plate 5. By adding the jet assembly 6 on both sides of the lower portion of the strip, rolling oil flowing over from the top of the strip can be blown off, preventing the rolling oil from continuing to be transported backward with the strip. The nested support cross tube 501 and outer sleeve 605 allow the outer sleeve 605 to slide along the support cross tube 501, thus achieving movement along the rolling width. In other words, the installation position of the jet assembly 6 can flexibly adapt to the width of the strip. Pipe joints are provided at both ends of the air guide pipe 601 to facilitate the connection of the air path and achieve ventilation; the nozzle 603 is connected to the air guide pipe 601 through the ball joint seat 602, and the direction of the nozzle 603 can be flexibly adjusted to achieve a better air jet degreasing effect.

[0060] The utility model also discloses a rolling mill exit guide operating method, wherein the rolling mill exit guide of any of the above-mentioned embodiments is used to assist the strip head of the rolled strip in threading. The movable guide is moved forward to reduce the gap between the rollers, thereby avoiding the problem of head binding, that is, the strip head hanging down through the gap and not passing through the guide as set.

[0061] The working method of the rolling mill outlet guide plate of the utility model further comprises the step of removing rolling oil on both sides of the strip by means of air blowing.

[0062] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0063] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A rolling mill exit guide plate, arranged behind the roller (8) of the rolling mill, characterized in that: The invention comprises a driving assembly, a movable guide plate (3), a guide seat plate (4) and a fixed guide plate (5), wherein both ends of the fixed guide plate (5) are fixedly connected to the rolling mill frame (9) and are located behind the outlet of the roller (8) below; the movable guide plate (3) is arranged between the roller (8) and the fixed guide plate (5), and both ends of the movable guide plate (3) are respectively connected to one of the guide seat plates (4) in a guided sliding manner, and the guide seat plate (4) is fixedly connected to the inner side wall of the rolling mill frame (9); the driving assembly is installed on the rolling mill frame (9) and can drive the movable guide plate (3) to move forward and backward.

2. The rolling mill exit guide plate according to claim 1, characterized in that: The driving assembly comprises a support beam (1) and an action cylinder (2). The two ends of the transversely arranged support beam (1) are connected to the inner wall of the rolling mill frame (9) through flange plates. Two pin seats (101) are provided on the top surface of the support beam (1). The pin seats (101) are respectively connected to the middle part of one of the action cylinders (2) by a pin. The two ends of the bottom front end of the movable guide plate (3) are respectively provided with a traction head (301). The piston rod end of the action cylinder (2) extending forward is pin-connected to the traction head (301).

3. The rolling mill exit guide plate according to claim 1, characterized in that: Guide rail grooves (304) with a lower front and a higher rear are provided on the side wall plates at both ends of the movable guide plate (3), and guide rail bars (401) that slide in the guide rail grooves (304) are provided on the inner side wall of the guide seat plate (4).

4. The rolling mill exit guide plate according to claim 3, characterized in that: Wear-resistant strips are attached to the three wall surfaces of the guide rail groove (304).

5. The rolling mill exit guide plate according to claim 2, characterized in that: The invention also includes a front limiting structure, wherein the front limiting structure includes a limiting block (302) and a limiting top screw (402); the front end of the top of the guide seat plate (4) is fixedly connected to a threaded hole plate, and the limiting top screw (402) is threadedly connected to the threaded hole of the threaded hole plate; the limiting block (302) is fixedly connected to the two ends of the rear part of the top of the movable guide plate (3), and the front end of the limiting block (302) can abut against the nut of the limiting top screw (402).

6. The rolling mill exit guide plate according to claim 2, characterized in that: It also includes a rear limiting component, which includes a proximity switch (7) and a trigger plate, and the trigger plate is installed on the side wall of one end of the rear bottom of the movable guide plate (3); the proximity switch (7) is installed on the top surface of the support beam (1) through a small support (701), and the trigger plate can slide above the sensing head of the proximity switch (7).

7. The rolling mill exit guide plate according to claim 1, characterized in that: It also includes an air jet assembly (6), two of which are arranged at the two ends below the rear of the fixed guide plate (5), the air outlet of the air jet assembly (6) is upward and the compressed air flow is sprayed to the edge position of the bottom surface of the rolled strip through the clearance hole (502) of the fixed guide plate (5).

8. The rolling mill exit guide plate according to claim 7, characterized in that: The jet assembly (6) includes an air guide component, an adapter plate (604), an outer sleeve (605), a reinforcement plate (606) and a positioning top screw (607). The air guide component for guiding compressed air is installed on the adapter plate (604) through a pipe clamp, and the outer sleeve (605) is fixedly connected between the adapter plate (604) and the reinforcement plate (606); the positioning top screw (607) is threadedly connected to the threaded holes on the side walls of the reinforcement plate (606) and the outer sleeve (605), and the positioning top screw (607) can be pushed into the hole in the outer sleeve (605); a supporting transverse tube (501) is horizontally arranged below the rear of the fixed guide plate (5), and the outer sleeve (605) is guided and slidably sleeved on the supporting transverse tube (501); the number of the clearance holes (502) is multiple and symmetrically arranged along the center line of the strip conveying.

9. The rolling mill exit guide plate according to claim 8, characterized in that: The air guide component comprises an air guide pipe (601), a ball joint seat (602) and a nozzle (603); both ends of the air guide pipe (601) are pipe joints for connecting the air path; the air guide pipe (601) is arranged parallel to the supporting transverse pipe (501) and is installed on the adapter plate (604) through a pipe clamp; the nozzle (603) is connected to the middle position of the air guide pipe (601) through the ball joint seat (602) capable of guiding air.

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