Strip steel edge blowing device

Abstract

The utility model relates to the technical field of strip steel production and manufacturing, in particular to a strip steel edge blowing device. The strip steel edge blowing device comprises a mounting base, two movable frames, at least four nozzles and an air supply assembly. The two movable frames are symmetrically arranged on the two sides of the strip steel in the transverse direction. Each movable frame is slidably mounted on the mounting base in the transverse direction and comprises an upper mounting rod and a lower mounting rod which are located on the upper side and the lower side of the strip steel respectively, and further comprises a connecting rod for connecting the upper mounting rod and the lower mounting rod. The at least four nozzles are installed on the two upper installation rods and the two lower installation rods respectively, and each nozzle faces the edge of the strip steel. The air supply assembly is connected with the at least four nozzles so as to supply air to the nozzles. The two movable frames provided with the nozzles are arranged on the sides of the strip steel, when the nozzles purge the strip steel, the probability that purged liquid is splashed to equipment can be reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of strip steel production and manufacturing, in particular to a strip steel edge blowing device. Background Art

[0002] The coating and plating processes of cold-rolled strip include strip painting, strip galvanizing, color plate coating, silicon steel plate insulation coating and other coating (plating) layers. Domestic and foreign cold rolling mills need to adopt some procedures to clean the impurities such as grease, iron powder and dust on the surface of the cold-rolled strip in the cleaning process section of the cold-rolled strip processing line. After drying, various cold-rolled products (including various coated or plated products) are finally produced.

[0003] Among them, rinsing and drying are two essential processes. After the strip steel in the cleaning section of the cold rolling annealing unit is spray-washed and rinsed with hot water, it is cleaned by a squeeze roller (surface material: nitrile rubber) to remove most of the residual liquid on the surface of the strip steel. However, due to the various differences in the width and thickness specifications of the produced strip steel, the surface material of the squeeze roller is continuously rubbed by the sharp edge of the strip steel, and the nitrile rubber layer is damaged. The squeeze roller cannot completely remove the residual liquid on the edge of the strip steel. When the strip steel with residual liquid is subjected to the subsequent strip steel production process, the residual liquid will cause various rollers to slip and foreign matter to stick, resulting in quality defects.

[0004] The invention patent with authorization announcement number CN105537289B proposes an automatic edge blowing device for pickled steel strip and a control method thereof, wherein the blowing pipe in the automatic edge blowing device for pickled steel strip is designed as a hose, and a screw and a moving block connected to each other by threads are added, a nozzle is fixed on the moving block, and the end of the screw operating side is connected to a code disk and a motor, and a heat exchanger and an automatic valve are added to the compressed air pipe; a grating is used to monitor the operation of the strip, and the movement of the moving block, the opening of the automatic valve and the rotation of the motor are controlled by a server; the disclosed invention can realize blowing in the width direction of the entire strip by controlling the movement of the moving block, and can realize timely adjustment of the compressed air blowing flow by controlling the opening of the automatic valve, and the compressed air is heated by a heat exchanger to make the blowing and drying effect better, and the waste of compressed air when there is no strip running can be effectively avoided by automatic control of the automatic valve. However, in the above-disclosed invention, since the screw and the nozzle are arranged on the upper and lower sides of the steel belt, the liquid blown down by the nozzle will splash onto the equipment. Since the liquid is corrosive, it is easy to cause damage to the equipment, reduce the service life of the equipment, and increase the maintenance cost.

[0005] Based on this, the existing technology still needs to be improved. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a strip edge blowing device, which can at least solve the problem of the short service life of the prior blowing device.

[0007] The utility model discloses a strip edge blowing device, which comprises a mounting base, two movable frames, at least four nozzles and an air supply assembly. The two movable frames are symmetrically arranged on both sides of the strip in the transverse direction; and each movable frame is slidably mounted on the mounting base in the transverse direction, and each movable frame comprises an upper mounting rod and a lower mounting rod respectively located on the upper and lower sides of the strip, and also comprises a connecting rod connecting the upper mounting rod and the lower mounting rod. At least four nozzles are respectively mounted on the two upper mounting rods and the two lower mounting rods, and each nozzle faces the edge of the strip. The air supply assembly is connected to the at least four nozzles to supply air to the nozzles.

[0008] In some embodiments, the strip edge blowing device further comprises two ball screw transmission modules disposed on the mounting base, and each ball screw transmission module is configured to control the movable frame to move in a lateral direction.

[0009] In some embodiments, the strip edge blowing device also includes two photoelectric switches, which are respectively arranged on both sides of the strip. The photoelectric switches are installed on a mounting base. Each photoelectric switch is configured to detect the distance of the steel strip and transmit the detected signal to the ball screw transmission module.

[0010] In some embodiments, the nozzle includes an air inlet end and an air outlet end, the air inlet end is rotatably mounted on an upper mounting rod or a lower mounting rod, and the air supply assembly includes two pneumatic pipelines, each end of the pneumatic pipeline is connected to two air pipe branches, and each air pipe branch is connected to a nozzle; each pneumatic pipeline is connected to an air supply pump.

[0011] In some embodiments, the strip edge blowing device also includes four limit switches, which are respectively installed on two upper mounting rods and two lower mounting rods and connected to corresponding nozzles. Each limit switch is configured to control the rotation of the nozzle relative to the upper mounting rod or the lower mounting rod.

[0012] In some embodiments, the ball screw transmission module includes a drive motor, a screw, a nut and a bearing seat; the drive motor is installed on the mounting base, and the screw is arranged horizontally; the nut is slidably installed on the mounting base and connected to the movable frame; a ball circulation channel is arranged inside the nut to cooperate with the screw spiral transmission; the bearing seat is installed on the mounting base, and the suspended end of the screw is rotatably installed on the bearing seat.

[0013] In some embodiments, one end of the screw away from the strip is connected to the output shaft of the driving motor, and the ball screw transmission module also includes a closed shell and a sliding plate. The closed shell covers the screw and the nut and is fixedly mounted on the mounting base; a guide groove is provided on the closed shell, the sliding plate is mounted on the nut and passes through the guide groove, and the movable frame is mounted on the sliding plate.

[0014] In some embodiments, the strip edge blowing device also includes four support rods, each support rod is arranged horizontally, and the four support rods are respectively installed on two upper mounting rods and two lower mounting rods, and the air pipe branch is a hose, and each air pipe branch is overlapped on a support rod.

[0015] In some embodiments, a shut-off valve is provided on each tracheal branch.

[0016] In some embodiments, a tube clamp for clamping the tracheal branch is also provided on the support rod.

[0017] The beneficial effects of the utility model are as follows: by arranging two movable frames equipped with nozzles on the side of the steel strip, the nozzle can reduce the probability of the liquid splashing onto the equipment when blowing the steel strip, thereby extending the service life of the equipment. At the same time, by arranging a movable frame that can move laterally, the position of the nozzle can be adapted to the width of different steel strips, thereby ensuring the blowing effect of the nozzle and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model shows a schematic structural diagram of a strip edge blowing device provided by the utility model.

[0019] Description of reference numerals:

[0020] 1. Strip steel; 2. Ball screw transmission module; 3. Pneumatic pipeline; 4. Moving frame; 5. Driving motor; 6. Nozzle installation position. DETAILED DESCRIPTION

[0021] It should be understood that the embodiments of the present invention shown in the exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in the present invention, it is easy for those skilled in the art to understand that multiple modifications are feasible without actually departing from the teachings of the subject matter of the present invention. Accordingly, all such modifications should be included within the scope of the present invention. Without departing from the gist of the present invention, other replacements, modifications, changes and deletions may be made to the design, operating conditions and parameters of the following exemplary embodiments.

[0022] A strip edge blowing device according to an embodiment of the utility model comprises a mounting base, two movable frames 4, at least four nozzles and an air supply assembly. The two movable frames 4 are symmetrically arranged on both sides of the strip 1 in the transverse direction; and each movable frame 4 is slidably mounted on the mounting base in the transverse direction, and each movable frame 4 comprises an upper mounting rod and a lower mounting rod respectively located on the upper and lower sides of the strip 1, and also comprises a connecting rod connecting the upper mounting rod and the lower mounting rod, wherein the upper mounting rod and the lower mounting rod are at the same distance from the strip 1, and the connecting rod is connected to the ends of the upper mounting rod and the lower mounting rod away from the strip 1. At least four nozzles are respectively mounted on the two upper mounting rods and the two lower mounting rods, and each nozzle faces the edge of the strip 1. Specifically, as Figure 1 As shown, the ends of the upper mounting rod and the lower mounting rod are nozzle mounting positions 6. The gas supply assembly is connected to at least four nozzles to supply gas to the nozzles, so that the gas is ejected from the nozzles in a high-pressure form to purge the edge of the steel strip 1, accelerate the air drying of the liquid remaining on the surface of the steel strip 1, and avoid the steel strip 1 still carrying residual liquid during subsequent production and affecting the quality of the steel strip. In particular, a heat exchanger can also be set to heat the gas to enhance the purging effect.

[0023] Compared with the prior art, the utility model sets two mobile frames 4 equipped with at least four nozzles on the side of the steel strip 1, and when the nozzles are blowing the steel strip 1, the probability of the liquid being blown down splashing onto the equipment can be reduced, thereby extending the service life of the equipment. At the same time, by setting a mobile frame 4 that can move laterally, the application can adapt the position of the nozzle to the width of different steel strips 1, ensure the blowing effect of the nozzle, and has a wide range of applications.

[0024] In some embodiments, a strip edge purging device further includes two ball screw transmission modules 2 mounted on a mounting base, each ball screw transmission module 2 being configured to control the lateral movement of a movable frame 4. A ball screw sliding module is a transmission mechanism that converts rotational motion into linear motion. Using a ball screw sliding module to control the movement of the movable frame 4 and the nozzle can improve the adjustment efficiency and the adjustment accuracy. The present application can achieve position adjustment of at least four nozzles by setting two ball screw sliding modules, thereby improving the compactness and uniformity of the device.

[0025] In some embodiments, the strip edge purging device further includes two photoelectric switches, which are respectively arranged on both sides of the strip 1, and the photoelectric switches are mounted on a mounting base, and each photoelectric switch is configured to detect the distance of the strip and transmit the detected signal to the ball screw transmission module 2, with high detection efficiency. Specifically, the photoelectric switch has a built-in chip, and the photoelectric switch works by emitting a light beam and receiving a light beam reflected by the strip 1, and triggers the switch action of the ball screw transmission module 2 according to the distance of the detected reflected light beam, with high automation.

[0026] In some embodiments, the nozzle includes an air inlet end and an air outlet end. The aperture of the air outlet end of the nozzle is relatively small so as to form high-pressure gas at the air outlet end. The air inlet end is rotatably mounted on the upper mounting rod or the lower mounting rod so that the blowing angle of the nozzle relative to the steel strip is adjustable to adapt to different ranges of residual liquid. The air supply assembly includes two pneumatic pipelines 3, each end of each pneumatic pipeline 3 is connected to two air pipe branches, each air pipe branch is connected to a nozzle, and each pneumatic pipeline 3 is connected to an air supply pump. Specifically, as Figure 1 As shown, the two pneumatic pipelines 3 are respectively located at the upper and lower sides of the steel strip 1, and the two air pipe branches on the upper side of the steel strip 1 are connected to the two nozzles on the upper side of the steel strip 1, and the two air pipe branches on the lower side of the steel strip 1 are connected to the two nozzles on the upper side of the steel strip 1. By setting up two independent pneumatic pipelines 3, it can be ensured that even if one pipeline has a problem or needs maintenance, the other pipeline can continue to work, thereby improving the reliability of the entire system. Each pneumatic pipeline 3 is connected to two air pipe branches, and each air pipe branch is connected to a nozzle, so that the air supply system can provide power to multiple gas consumption points at the same time to meet the needs of different equipment or execution units.

[0027] In some embodiments, the strip edge purging device further comprises four limit switches, which are respectively mounted on two upper mounting rods and two lower mounting rods and connected to corresponding nozzles, and each limit switch is configured to control the nozzle to rotate relative to the upper mounting rod or the lower mounting rod. For example, the limit switch may be an electric push rod, the fixed end of which is connected to the upper mounting rod or the lower mounting rod, and the telescopic end of which is connected to the nozzle. The purging angle of the nozzle is controlled by controlling the extension of the electric push rod, and the adjustment efficiency is high.

[0028] In some embodiments, the ball screw transmission module 2 includes a drive motor 5, a lead screw, a nut and a bearing seat. The drive motor 5 is mounted on the mounting base, and the lead screw is arranged horizontally. The nut is slidably mounted on the mounting base and connected to the mobile frame 4. A ball circulation channel that cooperates with the spiral transmission of the lead screw is arranged inside the nut. The bearing seat is mounted on the mounting base, and the suspended end of the lead screw is rotatably mounted on the bearing seat. When the drive motor 5 receives the signal transmitted by the photoelectric switch, it controls its rotation direction accordingly and drives the lead screw to rotate. The nut moves horizontally along the lead screw under the action of the ball and the mounting base, thereby adjusting the position of the mobile frame 4 to adapt to the width of different strip steels 1. Due to the presence of the ball, the friction resistance is small and the transmission efficiency is high. Compared with the driving torque required by the sliding screw pair, it is smaller, and precise positioning and highly repeatable motion control can be achieved.

[0029] In some embodiments, the end of the lead screw away from the steel strip 1 is connected to the output shaft of the drive motor 5, that is, the drive motor 5 is arranged on the side away from the steel strip 1 to prevent the residual liquid from falling on the drive motor 5, thereby ensuring the safety and reliability of the motor. The ball screw transmission module 2 also includes a closed shell and a sliding plate (not shown in the figure), the closed shell covers the lead screw and the nut, and is fixedly mounted on the mounting base, and the closed shell is made of corrosion-resistant material; a guide groove is provided on the closed shell, and the guide groove extends in the direction of the lead screw axis, the sliding plate is mounted on the nut and passes through the guide groove, and the movable frame 4 is mounted on the sliding plate. By setting the ball screw transmission module 2 into a closed structure, the present application can reduce the corrosion of the ball screw transmission module 2 caused by the residual liquid purged, thereby increasing the service life of the module and saving maintenance costs.

[0030] In some embodiments, each air pipe branch is provided with a stop valve, which can individually control the airflow of each nozzle, improve the accuracy of control, and adjust the gas supply according to actual needs, thereby avoiding energy waste. The fast response characteristics of the stop valve help to quickly cut off the airflow in an emergency (such as a pipe nest), thereby improving the safety of the entire system.

[0031] In some embodiments, the strip edge blowing device also includes four support rods (not shown in the figure), each support rod is arranged horizontally, and the four support rods are respectively installed on two upper mounting rods and two lower mounting rods, and the air pipe branch is a hose, and each air pipe branch is overlapped on a support rod. The support rod is arranged to provide a support point for the air pipe branch to avoid the air pipe branch being messy and hindering the flow of the ejected gas.

[0032] In some embodiments, a pipe clamp for clamping the tracheal branch is also provided on the support rod, so that the movable frame 4 can keep the tracheal branch stable when moving laterally to avoid affecting the angle and position of the nozzle.

[0033] The working principle and working process of a strip steel edge blowing device of the utility model for blowing the moving strip steel 1 are as follows:

[0034] Open the main switch valve, the photoelectric switch emits a light beam to the steel strip 1 and receives the light beam reflected by the steel strip 1. The photoelectric switch triggers the drive motor 5 to operate according to the distance of the reflected light beam detected. The drive motor 5 controls the lead screw to rotate, and the lead screw rotation drives the nut to move horizontally. The nut drives the mobile frame 4 to move horizontally relative to the mounting base through the sliding plate. When the mobile frame 4 reaches the preset position, the photoelectric switch drives the motor 5 to turn off. After that, the operator controls the extension of the electric push rod according to the distribution range of the residual liquid on the steel strip 1 to adjust the blowing angle of the nozzle so that the blowing area can cover the distribution range of the residual liquid.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, it should be included in the scope of protection of the claims of the present invention.

Claims

1. A strip edge blowing device, characterized in that: include: Install the base; Two movable frames (4), the two movable frames (4) are symmetrically arranged on both sides of the steel strip (1) in the transverse direction; and each movable frame (4) is slidably installed on the installation base in the transverse direction, and each movable frame (4) comprises an upper installation rod and a lower installation rod respectively located on the upper and lower sides of the steel strip (1), and also comprises a connecting rod connecting the upper installation rod and the lower installation rod; At least four nozzles, the at least four nozzles are respectively mounted on the two upper mounting rods and the two lower mounting rods, each nozzle facing an edge of the steel strip (1); An air supply assembly is connected to the at least four nozzles to supply air to the nozzles.

2. The strip edge blowing device according to claim 1, characterized in that: It also comprises two ball screw transmission modules (2) arranged on the mounting base, each of the ball screw transmission modules (2) being arranged to control the lateral movement of the movable frame (4).

3. The strip edge blowing device according to claim 2, characterized in that: It also includes two photoelectric switches, which are respectively arranged on both sides of the steel strip (1), and the photoelectric switches are installed on the mounting base. Each photoelectric switch is configured to detect the distance of the steel strip and transmit the detected signal to the ball screw transmission module (2).

4. The strip edge blowing device according to claim 1, characterized in that: The nozzle comprises an air inlet end and an air outlet end, the air inlet end is rotatably mounted on the upper mounting rod or the lower mounting rod, the air supply assembly comprises two pneumatic pipelines (3), the end of each pneumatic pipeline (3) is connected to two air pipe branches, each air pipe branch is connected to a nozzle; each pneumatic pipeline (3) is connected to an air supply pump.

5. The strip edge blowing device according to claim 1, characterized in that: It also includes four limit switches, which are respectively mounted on the two upper mounting rods and the two lower mounting rods and connected to corresponding nozzles, and each limit switch is configured to control the rotation of the nozzle.

6. The strip edge blowing device according to claim 2, characterized in that: The ball screw transmission module (2) comprises a drive motor (5), a screw, a nut and a bearing seat; the drive motor (5) is mounted on the mounting base, and the screw is arranged horizontally; the nut is slidably mounted on the mounting base and connected to the movable frame (4); a ball circulation channel is arranged inside the nut to cooperate with the screw helical transmission; the bearing seat is mounted on the mounting base, and the suspended end of the screw is rotatably mounted on the bearing seat.

7. The strip edge blowing device according to claim 6, characterized in that: The end of the lead screw away from the steel strip (1) is connected to the output shaft of the drive motor (5), and the ball screw transmission module (2) also includes a closed shell and a sliding plate, the closed shell covers the lead screw and the nut, and is fixedly mounted on the mounting base; a guide groove is provided on the closed shell, the sliding plate is mounted on the nut and passes through the guide groove, and the movable frame (4) is mounted on the sliding plate.

8. The strip edge blowing device according to claim 4, characterized in that: A stop valve is arranged on each of the air pipe branches.

9. The strip edge blowing device according to claim 4, characterized in that: It also includes four support rods, each support rod is arranged horizontally, and the four support rods are respectively installed on the two upper mounting rods and the two lower mounting rods. The tracheal branch is a hose, and each tracheal branch is overlapped on one of the support rods.

10. The strip edge blowing device according to claim 9, characterized in that: The support rod is also provided with a pipe clamp for clamping the tracheal branch.

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