Thickness correction device and control system for strip steel four-high mill

Abstract

The utility model relates to the field of four-roller mills, in particular to a strip steel four-roller mill thickness correction device and a control system.The strip steel four-roller mill thickness correction device comprises a mill assembly, retracting and releasing assemblies are arranged at the two ends of the mill assembly, a driving assembly is arranged on one side of the mill assembly, the mill assembly comprises a machine frame, and monitoring frames are fixedly installed on the two sides of the machine frame; a thickness gauge is fixedly installed in the middle of the inner side of the monitoring frame, sliding grooves are formed in the two ends of the machine frame, first sliding blocks and second sliding blocks are slidably connected to the top ends of the inner sides of the sliding grooves, a second working roller is rotationally connected between the two first sliding blocks, and a second supporting roller is rotationally connected between the two second sliding blocks; and the second supporting roller is arranged at the top end of the second working roller, the second supporting roller abuts against the second working roller, telescopic rods are fixedly installed at the two ends of the top of the machine frame, the output ends of the telescopic rods are fixedly connected with the tops of the second sliding blocks, and the effect of automatically correcting the machining thickness in the machining process is achieved.

Description

Technical Field

[0001] This application relates to the field of four-roll rolling mills, and in particular to a thickness correction device and control system for a four-roll strip rolling mill. Background Technology

[0002] A four-high rolling mill is a type of machinery used for rolling sheet or strip metal. Its key feature is the use of four rolls, arranged in two groups, upper and lower. This structure provides finer thickness control and better sheet shape quality, and is widely used in cold and hot rolling processes, especially in applications requiring high surface quality and dimensional accuracy.

[0003] After a period of use, the work rolls of existing four-roll steel strip mills will wear out, and the thickness of the strip rolled over a long period of time is prone to errors, making it inconvenient to use. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, this application provides a thickness correction device and control system for a four-high strip mill.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0006] A thickness correction device and control system for a four-high strip mill includes a mill assembly. The mill assembly has take-up and release assemblies at both ends and a drive assembly on one side. The mill assembly includes a frame, with monitoring frames fixedly installed on both sides. A thickness gauge is fixedly installed in the center of the inner side of each monitoring frame. Sliding grooves are formed at both ends of the frame. A first sliding block and a second sliding block are slidably connected to the top of the inner side of each sliding groove. A second work roll is rotatably connected between the two first sliding blocks. A second support roll is rotatably connected between the two second sliding blocks. The second support roll is positioned at the top of the second work roll and abuts against it. Telescopic rods are fixedly installed at both ends of the top of the frame, with the output end of each telescopic rod fixedly connected to the top of the second sliding block.

[0007] By adopting the above scheme, the rolling mill assembly is equipped with take-up and release components at both ends and a drive component on one side of the rolling mill assembly. This facilitates the operation of the two take-up and release components to drive the strip steel through the rolling mill assembly for rolling. The drive component drives the rolling mill assembly to generate rolling force to roll the strip steel. Monitoring frames are fixedly installed on both sides of the mill frame, and a thickness gauge is fixedly installed in the middle of the inner side of the monitoring frame. This allows the thickness gauge to be fixedly installed on both sides of the mill frame, enabling it to monitor the thickness of the strip steel entering and leaving the rolling mill assembly. When there is an error in the thickness of the rolled strip steel, an electrical signal is generated to allow the device to correct it. Telescopic rods are fixedly installed at both ends of the top of the mill frame. The output end of the telescopic rod is fixedly connected to the top of the second sliding block, which allows the telescopic rod to control the up and down sliding of the second sliding block, thereby driving the up and down movement of the second support roller. This achieves the adjustment of the rolling thickness of the mill and facilitates correction based on the thickness error monitored by the thickness gauge.

[0008] Furthermore, the bottom of the second working roll is provided with a first working roll, and the bottom of the first working roll is provided with a first support roll.

[0009] By adopting the above scheme, a first working roll is provided at the bottom of the second working roll, and a first support roll is provided at the bottom of the first working roll. This facilitates the first support roll to provide support for the first working roll, improves the stability of the first working roll, and makes it easier for the first working roll and the second working roll to cooperate in rolling the steel strip.

[0010] Furthermore, the first working roller is rotatably connected to the two ends of the second bearing seat, the first support roller is rotatably connected to the two ends of the first bearing seat, the first bearing seat and the second bearing seat are both fixedly connected to the sliding groove, and the top two ends of the second bearing seat are fixedly installed with a return spring.

[0011] By adopting the above scheme, return springs are fixedly installed at both ends of the top of the second bearing seat. The return springs provide elastic force, which can push the second working roller to move upward when the telescopic rod moves the second support roller. This widens the gap between the first working roller and the second working roller, making it easier for the steel strip to pass through.

[0012] Furthermore, a speed measuring roller is rotatably connected to the end of the monitoring frame away from the machine frame, and speed sensors are provided at both ends of the speed measuring roller.

[0013] By adopting the above scheme, a speed measuring roller is rotatably connected to the end of the monitoring frame away from the mill frame. Speed ​​sensors are provided at both ends of the speed measuring roller, which facilitates the monitoring of the speed at which the steel strip enters and leaves the rolling mill assembly.

[0014] Furthermore, the drive assembly includes a drive housing, on one side of which a drive motor is fixedly mounted at the bottom, and on the other side of which two drive shafts are rotatably connected.

[0015] Furthermore, the drive box is equipped with a speed-changing gear set. The output end of the drive motor is fixedly connected to the input end of the speed-changing gear set. The output end of the speed-changing gear set is fixedly connected to one end of two transmission shafts. The other ends of the two transmission shafts are respectively fixedly connected to the first support roller and the second support roller.

[0016] By adopting the above scheme, the output end of the speed-changing gear set is fixedly connected to one end of the two transmission shafts, and the other end of the two transmission shafts is fixedly connected to the first support roller and the second support roller respectively. This facilitates the operation of the drive motor to drive the two transmission shafts to rotate, thereby controlling the rotation of the first support roller and the second support roller, so that the rolling mill assembly obtains rolling force to roll the steel strip.

[0017] Furthermore, the retractable assembly includes a base, with a retractable frame fixedly installed at one end of the top of the base away from the frame, and a guide frame fixedly installed at the other end of the top of the base.

[0018] Furthermore, a take-up and release roller is rotatably connected to one side of the take-up and release frame, and a take-up and release motor is fixedly installed on the other side of the take-up and release frame, with the output end of the take-up and release motor fixedly connected to the take-up and release roller.

[0019] By adopting the above scheme, the output end of the take-up and discharge motor is fixedly connected to the take-up and discharge rollers, which facilitates the take-up and discharge motor to control the rotation of the take-up and discharge rollers. The rotation of the two take-up and discharge rollers enables the strip steel to pass through the rolling mill assembly for rolling.

[0020] Furthermore, a guide roller is rotatably connected to the top of the guide frame, and tension sensors are provided at both ends of the guide roller. The tension sensors are electrically connected to the receiver / discharger.

[0021] By adopting the above scheme, the tension sensor is electrically connected to the receiver / discharger, which facilitates the monitoring of the tension of the steel strip. When abnormal tension is detected, the torque and speed output by the receiver / discharger are adjusted to correct the tension.

[0022] Furthermore, it includes a control panel, the control system being located inside the control panel, the control panel being located in the middle of one side of the drive box, and the control panel being electrically connected to the speed sensor, thickness gauge, telescopic rod, drive motor, and retraction assembly.

[0023] By adopting the above scheme, the control panel is electrically connected to the speed sensor, thickness gauge, telescopic rod, drive motor, and take-up and release assembly. This allows the control system to control the telescopic rod, drive motor, and take-up and release assembly based on the speed data monitored by the speed sensor and the thickness data monitored by the thickness gauge. This enables the telescopic rod, drive motor, and take-up and release assembly to work together to roll the steel strip. It also allows users to control the device using the control panel, enabling the device to roll steel strips with high thickness accuracy.

[0024] In summary, this application has the following technical effects:

[0025] The rolling mill assembly has take-up and release components at both ends and a drive component on one side. This allows the two take-up and release components to move the strip steel through the rolling mill assembly for rolling. The drive component drives the rolling mill assembly, generating rolling force to roll the strip steel. Monitoring frames are fixedly installed on both sides of the mill frame, with a thickness gauge fixedly installed in the center of the inner side of each frame. This allows the thickness gauge to monitor the thickness of the strip steel entering and leaving the rolling mill assembly. When errors occur in the thickness of the rolled strip, an electrical signal is generated to correct the mechanism. Telescopic rods are fixedly installed at both ends of the top of the mill frame, with the output end of the telescopic rod fixedly connected to the top of the second sliding block for easy telescopic movement. The up-and-down sliding of the second sliding block drives the up-and-down movement of the second support roller, thereby adjusting the rolling thickness of the mill and facilitating correction based on the thickness error monitored by the thickness gauge. The control panel is electrically connected to the speed sensor, thickness gauge, telescopic rod, drive motor, and take-up / unwinding assembly. This allows the control system to control the telescopic rod, drive motor, and take-up / unwinding assembly based on the speed data monitored by the speed sensor and the thickness data monitored by the thickness gauge. This enables the telescopic rod, drive motor, and take-up / unwinding assembly to work together to roll the steel strip. The control panel allows users to easily control the device, enabling it to roll steel strips with high thickness accuracy and achieving automatic thickness correction during processing. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the object of this application;

[0027] Figure 2 This is a three-dimensional structural schematic diagram of the rolling mill assembly of this application;

[0028] Figure 3 This is a three-dimensional structural diagram of the driving component of this application;

[0029] Figure 4 This is a three-dimensional structural schematic diagram of the second bearing housing of this application.

[0030] In the diagram, 101 is the rolling mill assembly; 10101 is the mill frame; 10102 is the monitoring frame; 10103 is the speed measuring roll; 10104 is the speed sensor; 10105 is the thickness gauge; 10106 is the first support roll; 10107 is the first work roll; 10108 is the second work roll; 10109 is the second support roll; 10110 is the first bearing housing; 10111 is the second bearing housing; 10112 is the first sliding block; 10113 is the second... 10114 Sliding block; 10115 Telescopic rod; 10116 Return spring; 10116 Sliding groove; 102 Drive assembly; 10201 Drive box; 10202 Drive motor; 10203 Drive shaft; 10204 Control panel; 103 Take-up and release assembly; 10301 Base; 10302 Take-up and release frame; 10303 Take-up and release roller; 10304 Guide frame; 10305 Guide roller; 10306 Tension sensor. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] Example:

[0033] As attached Figure 1 To be continued Figure 4 As shown:

[0034] This utility model provides a thickness correction device and control system for a four-high strip mill, including a mill assembly 101. The mill assembly 101 has take-up and release components 103 at both ends, and a drive assembly 102 on one side. The presence of the take-up and release components 103 at both ends and the drive assembly 102 on one side facilitates the operation of the two take-up and release components 103 to drive the strip steel through the mill assembly 101 for rolling. The drive assembly 102 drives the mill assembly 101 to generate rolling force to roll the strip steel. The rolling mill assembly 101 includes a frame 10101, with monitoring frames 10102 fixedly mounted on both sides of the frame 10101. A thickness gauge 10105 is fixedly mounted on the inner center of each monitoring frame 10102. The fixed mounting of the monitoring frames 10102 on both sides of the frame 10101 and the thickness gauge 10105 on the inner center of each monitoring frame 10102 facilitates the fixed mounting of the thickness gauge 10105 on both sides of the frame 10101, enabling the thickness gauge 10105 to monitor the thickness of the strip entering and leaving the rolling mill assembly 101, and to prevent errors in the thickness measurement of the rolled strip. The time difference generates an electrical signal to cause the device to make corrections. The frame 10101 has sliding grooves 10116 at both ends. A first sliding block 10112 and a second sliding block 10113 are slidably connected to the top of the inner side of the sliding groove 10116. A second working roller 10108 is rotatably connected between the two first sliding blocks 10112, and a second support roller 10109 is rotatably connected between the two second sliding blocks 10113. The second support roller 10109 is located at the top of the second working roller 10108 and abuts against the second working roller 10108. The frame 10101... 1. Telescopic rods 10114 are fixedly installed at both ends of the top. The output end of the telescopic rods 10114 is fixedly connected to the top of the second sliding block 10113. The telescopic rods 10114 are fixedly installed at both ends of the top of the frame 10101. The output end of the telescopic rods 10114 is fixedly connected to the top of the second sliding block 10113. This allows the telescopic rods 10114 to control the up and down sliding of the second sliding block 10113, thereby driving the second support roller 10109 to move up and down. This enables the adjustment of the rolling thickness of the mill and facilitates the correction of the thickness error monitored by the thickness gauge 10105.

[0035] The second work roll 10108 has a first work roll 10107 at its bottom, and the first work roll 10107 has a first support roll 10106 at its bottom. The first support roll 10106 at the bottom of the second work roll 10108 provides support for the first work roll 10107, improves the stability of the first work roll 10107, and facilitates the cooperation between the first work roll 10107 and the second work roll 10108 to roll the steel strip.

[0036] The first working roller 10107 is rotatably connected to the second bearing housing 10111 at both ends, and the first support roller 10106 is rotatably connected to the first bearing housing 10110 at both ends. The first bearing housing 10110 and the second bearing housing 10111 are both fixedly connected to the sliding groove 10116. The top two ends of the second bearing housing 10111 are fixedly installed with return springs 10115. The return springs 10115 are fixedly installed at the top two ends of the second bearing housing 10111 so that they can provide elastic force. When the telescopic rod 10114 drives the second support roller 10109 to move upward, it can push the second working roller 10108 to move upward, thereby widening the roller gap between the first working roller 10107 and the second working roller 10108, making it easier for the steel strip to pass through.

[0037] The monitoring frame 10102 is rotatably connected to a speed measuring roller 10103 at one end away from the mill frame 10101. The speed measuring roller 10103 is equipped with speed sensors 10104 at both ends. The speed measuring roller 10103 is rotatably connected to the monitoring frame 10102 at one end away from the mill frame 10101, and the speed measuring roller 10103 is equipped with speed sensors 10104 at both ends, which facilitates the monitoring of the speed at which the steel strip enters and leaves the rolling mill assembly 101.

[0038] The drive assembly 102 includes a drive housing 10201, a drive motor 10202 is fixedly installed on the bottom of one side of the drive housing 10201, and two drive shafts 10203 are rotatably connected to the other side of the drive housing 10201.

[0039] The drive box 10201 is equipped with a speed-changing gear set. The output end of the drive motor 10202 is fixedly connected to the input end of the speed-changing gear set. The output end of the speed-changing gear set is fixedly connected to one end of two drive shafts 10203. The other ends of the two drive shafts 10203 are fixedly connected to the first support roller 10106 and the second support roller 10109, respectively. By connecting the output end of the speed-changing gear set to one end of the two drive shafts 10203 and the other ends of the two drive shafts 10203 to the first support roller 10106 and the second support roller 10109, the drive motor 10202 can drive the two drive shafts 10203 to rotate, thereby controlling the rotation of the first support roller 10106 and the second support roller 10109, so that the rolling mill assembly 101 can obtain rolling force to roll the steel strip.

[0040] The take-up and take-down assembly 103 includes a base 10301, a take-up and take-down rack 10302 is fixedly installed on the top of the base 10301 away from the frame 10101, and a guide rack 10304 is fixedly installed on the other top of the base 10301.

[0041] The take-up and release frame 10302 is rotatably connected to a take-up and release roller 10303 on one side, and a take-up and release motor 10307 is fixedly installed on the other side of the take-up and release frame 10302. The output end of the take-up and release motor 10307 is fixedly connected to the take-up and release roller 10303. The fixed connection between the output end of the take-up and release motor 10307 and the take-up and release roller 10303 facilitates the take-up and release motor 10307 to control the rotation of the take-up and release roller 10303. The rotation of the two take-up and release rollers 10303 enables the strip steel to pass through the rolling mill assembly 101 for rolling.

[0042] The guide frame 10304 is rotatably connected to the top of the guide roller 10305. Tension sensors 10306 are provided at both ends of the guide roller 10305. The tension sensors 10306 are electrically connected to the take-up and discharge machine 10307. The connection between the tension sensors 10306 and the take-up and discharge machine 10307 facilitates the monitoring of the tension of the steel strip. When abnormal tension is detected, the torque and speed output by the take-up and discharge machine 10307 are adjusted to correct the tension.

[0043] This includes a control panel 10204, with the control system housed inside the control panel 10204. The control panel 10204 is located in the middle of one side of the drive box 10201. The control panel 10204 is electrically connected to the speed sensor 10104, thickness gauge 10105, telescopic rod 10114, drive motor 10202, and retraction assembly 103. The telescopic rod 10114, drive motor 10202, and take-up / deployment assembly 103 are electrically connected, which facilitates the control system to control the telescopic rod 10114, drive motor 10202, and take-up / deployment assembly 103 based on the speed data monitored by the speed sensor 10104 and the thickness data monitored by the thickness gauge 10105. This allows the telescopic rod 10114, drive motor 10202, and take-up / deployment assembly 103 to work together to roll the steel strip. It also allows the user to control the device using the control panel 10204, enabling the device to roll steel strip with high thickness accuracy.

[0044] Specifically, the control panel 10204 is electrically connected to the speed sensor 10104, thickness gauge 10105, telescopic rod 10114, drive motor 10202, and take-up / delay assembly 103. This allows the control system to control the telescopic rod 10114, drive motor 10202, and take-up / delay assembly 103 based on the speed data monitored by the speed sensor 10104 and the thickness data monitored by the thickness gauge 10105. This enables the telescopic rod 10114, drive motor 10202, and take-up / delay assembly 103 to work together to roll the steel strip. The control panel 10204 allows users to easily control the device and enable it to roll. To produce high-precision steel strip, the output end of the take-up and untake-up motor 10307 is fixedly connected to the take-up and untake-up rollers 10303, facilitating the control of the rotation of the take-up and untake-up rollers 10303 by the take-up and untake-up motor 10307. The rotation of the two take-up and untake-up rollers 10303 drives the steel strip through the rolling mill assembly 101 for rolling. A tension sensor 10306 is electrically connected to the take-up and untake-up motor 10307 to monitor the tension of the steel strip. When abnormal tension is detected, the torque and speed output of the take-up and untake-up motor 10307 are adjusted to correct the tension. The output end of the speed-changing gear set is fixedly connected to one end of two drive shafts 10203. The other ends of the two drive shafts 10203 are fixedly connected to the first support roller 10106 and the second support roller 10109, respectively, so that the drive motor 10202 can drive the two drive shafts 10203 to rotate, thereby controlling the rotation of the first support roller 10106 and the second support roller 10109, so that the rolling mill assembly 101 can obtain rolling force to roll the strip steel. Monitoring frames 10102 are fixedly installed on both sides of the frame 10101, and a thickness gauge 10105 is fixedly installed in the middle of the inner side of the monitoring frame 10102, so that the thickness gauge 10105 can be fixedly installed on both sides of the frame 10101, so that the thickness gauge 10105 can monitor the thickness of the strip steel entering and leaving the rolling mill assembly 101, and can generate an electrical signal to correct the device when the thickness of the rolled strip steel is incorrect. Telescopic rods 10 are fixedly installed at both ends of the top of the frame 10101. 114. The output end of the telescopic rod 10114 is fixedly connected to the top of the second sliding block 10113, facilitating the telescopic rod 10114 to control the up-and-down sliding of the second sliding block 10113, thereby driving the second support roller 10109 to move up and down, realizing the adjustment of the rolling thickness of the rolling mill, and facilitating correction based on the thickness error monitored by the thickness gauge 10105. A first work roller 10107 is provided at the bottom of the second work roller 10108, and a first support roller 10106 is provided at the bottom of the first work roller 10107, facilitating the first support roller 10106 to provide support for the first work roller 10107, improving the stability of the first work roller 10107, and facilitating the cooperation between the first work roller 10107 and the second work roller 10108 to roll the steel strip. Return springs 10115 are fixedly installed at both ends of the top of the second bearing seat 10111.The return spring 10115 provides elastic force, which, when the telescopic rod 10114 moves the second support roller 10109 upward, pushes the second work roller 10108 upward, thereby widening the roll gap between the first work roller 10107 and the second work roller 10108, facilitating the passage of the strip steel. A speed measuring roller 10103 is rotatably connected to one end of the monitoring frame 10102 away from the mill frame 10101. Speed ​​sensors 10104 are installed at both ends of the speed measuring roller 10103 to monitor the speed at which the strip steel enters and leaves the mill assembly 101.

[0045] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A thickness correction device for a four-high strip mill, characterized in that, The device includes a rolling mill assembly (101), with take-up and release assemblies (103) at both ends and a drive assembly (102) on one side. The rolling mill assembly (101) includes a frame (10101), with monitoring frames (10102) fixedly installed on both sides of the frame (10101). A thickness gauge (10105) is fixedly installed in the middle of the inner side of the monitoring frame (10102). Sliding grooves (10116) are provided at both ends of the frame (10101), and a first sliding block (10112) and a second sliding block are slidably connected to the top of the inner side of the sliding groove (10116). The moving block (10113) is rotatably connected to the two first sliding blocks (10112), and a second working roller (10108) is rotatably connected to the two second sliding blocks (10113). The second support roller (10109) is located at the top of the second working roller (10108) and abuts against the second working roller (10108). Telescopic rods (10114) are fixedly installed at both ends of the top of the frame (10101), and the output end of the telescopic rods (10114) is fixedly connected to the top of the second sliding block (10113).

2. The thickness correction device for a four-high strip mill according to claim 1, characterized in that, The second working roller (10108) has a first working roller (10107) at its bottom, and the first working roller (10107) has a first support roller (10106) at its bottom.

3. The thickness correction device for a four-high strip mill according to claim 2, characterized in that, The first working roller (10107) is rotatably connected to the two ends of the second bearing seat (10111), and the first support roller (10106) is rotatably connected to the two ends of the first bearing seat (10110). The first bearing seat (10110) and the second bearing seat (10111) are both fixedly connected to the sliding groove (10116). The second bearing seat (10111) is fixedly installed with a return spring (10115) at both ends of the top.

4. The thickness correction device for a four-high strip mill according to claim 1, characterized in that, The monitoring frame (10102) is rotatably connected to a speed measuring roller (10103) at one end away from the machine frame (10101), and speed sensors (10104) are provided at both ends of the speed measuring roller (10103).

5. The thickness correction device for a four-high strip mill according to claim 1, characterized in that, The drive assembly (102) includes a drive box (10201), on which a drive motor (10202) is fixedly installed at the bottom of one side, and two drive shafts (10203) are rotatably connected to the other side of the drive box (10201).

6. The thickness correction device for a four-high strip mill according to claim 5, characterized in that, The drive box (10201) is equipped with a speed-changing gear set. The output end of the drive motor (10202) is fixedly connected to the input end of the speed-changing gear set. The output end of the speed-changing gear set is fixedly connected to one end of two transmission shafts (10203). The other ends of the two transmission shafts (10203) are fixedly connected to the first support roller (10106) and the second support roller (10109) respectively.

7. The thickness correction device for a four-high strip mill according to claim 1, characterized in that, The take-up and take-down assembly (103) includes a base (10301), a take-up and take-down frame (10302) is fixedly installed on the top of the base (10301) away from the frame (10101), and a guide frame (10304) is fixedly installed on the other end of the top of the base (10301).

8. A thickness correction device for a four-high strip mill according to claim 7, characterized in that, The take-up and release frame (10302) is rotatably connected to a take-up and release roller (10303) on one side, and a take-up and release motor (10307) is fixedly installed on the other side of the take-up and release frame (10302). The output end of the take-up and release motor (10307) is fixedly connected to the take-up and release roller (10303).

9. A thickness correction device for a four-high strip mill according to claim 8, characterized in that, The top of the guide frame (10304) is rotatably connected to a guide roller (10305), and tension sensors (10306) are provided at both ends of the guide roller (10305). The tension sensors (10306) are electrically connected to the receiver / discharger (10307).

10. A control system applied to the thickness correction device for a four-high strip mill as described in any one of claims 1-9, characterized in that, The system includes a control panel (10204), the control system is located inside the control panel (10204), the control panel (10204) is located in the middle of one side of the drive box (10201), and the control panel (10204) is electrically connected to the speed sensor (10104), the thickness gauge (10105), the telescopic rod (10114), the drive motor (10202), and the retraction assembly (103).

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