Automatic edge blowing device for pickling strip and control method thereof

Abstract

The present application relates to an automatic edge blowing device for pickling steel strip and a control method thereof, belonging to the technical field of pickling steel strip. The automatic edge blowing device for pickling steel strip includes a nozzle and baffles located on both sides of the steel strip, the positions of the baffles and the nozzles correspond, the baffles are arc-shaped, the baffles are convex in the direction away from the steel strip, air inlet frames are arranged on both sides of the baffles, the arrangement direction of the two air inlet frames is parallel to the forward direction of the steel strip, an air bag is arranged on the side of the air inlet frame away from the baffle, the opening of the air bag is connected to the air inlet frame, and a plurality of air outlets are opened on the side of the air bag close to the steel strip. The present application has the effect of facilitating the reuse of hot air and improving the comfort of personnel in the working environment.

Description

Technical Field

[0001] The present application relates to the technical field of pickling steel strips, and in particular to an automatic edge blowing device for pickling steel strips and a control method thereof. Background Art

[0002] Pickling steel strip refers to removing the iron oxide scale on the surface of the steel strip to make the steel strip have a clean and active surface. After pickling, the steel strip usually needs to be rinsed and dried. After rinsing, a set of squeeze rollers are used to squeeze out the rinse water on the surface of the steel strip. The edge of the steel strip often has water. In order to prevent the surface of the steel strip from having dark yellow edges, water edges, rust, etc., it is necessary to use an edge blowing device to blow away the water stains on the edge of the steel strip.

[0003] In the related technology, such as the Chinese patent document with publication number CN105537289A, an automatic edge blowing device for pickling strip and a control method thereof are disclosed, including a side beam, a blowing pipe, a nozzle installed on the blowing pipe and a compressed air pipe. Two screws parallel to the surface of the strip are symmetrically arranged on the upper and lower surfaces of the strip, and the two ends of the screw are rotatably connected to the side beams respectively. The left and right sections of each screw are provided with external threads in opposite directions. The left and right sections of the screw are respectively threadedly connected to the moving blocks, the nozzle is fixedly connected to the moving block, and the edge of the nozzle strip is inclined; the compressed air pipe is divided into four branches and connected to the four blowing pipes respectively, each branch is installed with an automatic valve, and a heat exchanger is also installed on the branch. It also includes a server, a grating for monitoring the running status of the strip, a grating reflector, a code disk and a motor connected to the end of the screw operating side, and the code disk, the motor, the grating, and the automatic valve are electrically connected to the server respectively. When the grating detects that the strip is running, it transmits the width data of the strip to the server at the same time. The server compares the strip width data fed back by the grating and the moving stroke of the moving block fed back by the encoder, and then instructs the motor to rotate to move the moving block to the required position; the compressed air is heated by the heat exchanger and then sprayed out from the nozzle to blow the strip.

[0004] Regarding the above-mentioned related technologies, in order to facilitate blowing off the rinsing water on the edge of the strip, the hot air sprayed from the nozzle has high intensity and large air volume, the temperature of the surrounding working environment increases, the personnel on the operating side can obviously feel the hot air, and the comfort of the personnel is reduced. Summary of the invention

[0005] In order to facilitate the reuse of hot air and improve the comfort of personnel in the working environment, the present application provides an automatic edge blowing device for pickling strip and a control method thereof.

[0006] In the first aspect, the present application provides an automatic edge blowing device for pickling strip steel, which adopts the following technical solution:

[0007] An automatic edge blowing device for pickled strip steel comprises a nozzle and baffles located on both sides of the strip steel, wherein the positions of the baffles and the nozzles correspond, the baffles are arc-shaped, and the baffles protrude outward in a direction away from the strip steel. Air inlet frames are arranged on both sides of the baffles, and the arrangement direction of the two air inlet frames is parallel to the forward direction of the strip steel. An air bag is arranged on the side of the air inlet frame away from the baffle, and the opening of the air bag is connected to the air inlet frame. A plurality of air outlets are provided on the side of the air bag close to the strip steel.

[0008] By adopting the above technical scheme, the nozzle sprays hot air toward the edge of the steel strip, and the baffle blocks the hot air and the blown water droplets. Since the baffle is arc-shaped, the hot air sprayed toward the baffle enters the airbag from the air inlet frames on both sides of the baffle, thereby inflating the airbag. The hot air in the airbag is blown onto the steel strip through the air outlet, which helps to heat and dry the steel strip, thereby reducing heat loss and realizing the reuse of the heat in the hot air. At the same time, the flow direction of the hot air is changed, so that the nozzle on the operating side is not easy to blow the hot air directly to the workers, thereby reducing the temperature in the working environment to a certain extent, which helps to improve the comfort of people in the working environment.

[0009] Preferably, a guide rod is slidably provided on the air inlet frame, and the sliding direction of the guide rod is parallel to the forward direction of the strip steel. A plurality of guide rings are provided on the side of the airbag close to the strip steel, and the plurality of guide rings are arranged along the forward direction of the strip steel. The guide rings are slidably provided on the guide rod, and a pulling component for pulling the guide rod to slide toward the direction close to the baffle is provided on the baffle.

[0010] By adopting the above technical solution, when hot air blows onto the baffle, it enters the airbag through the air inlet frame, thereby blowing the airbag to expand in the direction away from the baffle, and the guide ring on the airbag drives the guide rod to slide in the direction away from the baffle, and the guide rod supports and guides the airbag to a certain extent, so that the airbag is not easy to contact the strip steel; after the nozzle stops blowing, the guide rod is pulled by the pulling assembly to slide in the direction close to the baffle, and the guide rod drives the guide ring to move closer, thereby folding the airbag, which is convenient for storing the airbag to reduce the horizontal occupied space and facilitate the transportation of the device.

[0011] Preferably, the pulling assembly includes a pull rope arranged at one end of the guide rod close to the baffle, a reel rotating on the baffle and a driving member arranged on the baffle, the pull rope is wound around the reel at one end away from the guide rod, the reel is located on a side of the corresponding air inlet frame close to the baffle, and the driving member is used to drive the reel to rotate to reel in the pull rope.

[0012] By adopting the above technical solution, the reel is driven to rotate by the driving member, so that the reel reels up the drawstring, and then the drawstring pulls the guide rod to slide toward the direction close to the baffle, so as to fold and store the airbag.

[0013] Preferably, a rotating shaft is coaxially arranged on the reel, and the rotating shaft rotates on the baffle. The driving member includes a torsion spring for driving the reel to rotate to reel in the pull rope. The torsion spring is movably sleeved on the rotating shaft, and one end of the torsion spring is arranged on the baffle, and the other end is arranged on the reel.

[0014] By adopting the above technical solution, after the nozzle stops blowing, the hot air no longer has a blowing effect on the airbag. At this time, the torsion spring drives the reel to wind up the pull rope, and the pull rope pulls the guide rod to slide toward the direction close to the baffle, thereby facilitating the folding and storage of the airbag.

[0015] Preferably, fan blades are rotatably provided on the baffle, the fan blades correspond to the position of the nozzle, the fan blades are located between the drums corresponding to the air inlet frames on both sides, the fan blades and the drums on both sides are coaxially connected, and when the hot air ejected from the nozzle blows toward the fan blades, the fan blades rotate to drive the drum to unwind the pull rope.

[0016] By adopting the above technical solution, the hot air blown on the baffle drives the fan blades to rotate, and the fan blades drive the reels on both sides to rotate to unwind the draw rope, which helps to reduce the resistance of the guide rod sliding in the direction away from the baffle, making it easier for the hot air in the airbag to push the airbag to unfold, and then blow toward the strip again, so that the heat in the hot air is reused to achieve heat loss, thereby effectively slowing down the temperature rise in the working environment and improving the comfort of people in the working environment.

[0017] Preferably, a water receiving box is provided below the baffle, a water absorption belt is provided at the bottom end of the baffle, and the water absorption belt is located in the water receiving box.

[0018] By adopting the above technical solution, the water absorbent belt helps to drain the water droplets on the baffle, so that the water droplets flow into the water receiving box through the water absorbent belt, making it difficult for the water droplets on the baffle to drip onto the device below and cause the device to rust, be damaged, or leak electricity.

[0019] Preferably, a floating block is slidably arranged in the water receiving box, the sliding direction of the floating block is arranged along the vertical direction, and the side of the water absorption belt away from the baffle is connected to the floating block.

[0020] By adopting the above technical solution, when the rinsing water in the water receiving box accumulates to a certain amount, it drives the floating block to float up, and the floating block drives the water absorbent belt to move upward, so that the water absorbent belt is not easy to directly contact the rinsing water in the water receiving box, which helps to ensure the drainage effect of the water absorbent belt. At the same time, the setting of the floating block makes it difficult for the water absorbent belt to shake unnecessarily.

[0021] Preferably, the automatic edge blowing device for pickled strip also includes a sliding moving block, the nozzle is arranged on the moving block, the water receiving box is slidably arranged, the sliding direction of the water receiving box is parallel to the sliding direction of the moving block, and the moving block is provided with a transmission member for driving the water receiving box to slide in the same direction when the moving block slides.

[0022] By adopting the above technical solution, when the moving block moves, the water receiving box is driven to move synchronously through the transmission member, so as to adjust the position of the baffle according to the width of the strip steel, thereby effectively ensuring the blocking and reuse of hot air.

[0023] Preferably, the transmission member includes a transmission rod arranged between the moving block and the water receiving box.

[0024] By adopting the above technical solution, when the moving block moves, the water receiving box is driven to move synchronously through the transmission rod, which helps the baffle to adjust its position according to the width of the strip to ensure the blocking and utilization effect of hot air.

[0025] In the second aspect, the present application provides a control method for an automatic edge blowing device for pickling strip steel, which adopts the following technical solution:

[0026] A control method for the automatic edge blowing device for pickling strip steel comprises the following steps:

[0027] Step 1, parameter setting: set the moving stroke and compressed air pressure of the moving block through the server;

[0028] Step 2, strip operation signal monitoring: The grating monitors the operation status of the strip by exchanging light beam signals with the grating reflector. When the strip is detected to be running, the grating transmits the strip operation signal to the server, and the server instructs four automatic valves to open for compressed air supply;

[0029] Step 3, parameter adjustment: When the grating detects that the strip is running, the width data of the strip is transmitted to the server. The server compares the strip width data fed back by the grating and the position of the moving block fed back by the encoder, and then instructs the motor to rotate to move the moving block to the required position of the strip. At the same time, the water collecting box and the baffle are driven to move to the appropriate position away from the strip through the transmission parts.

[0030] In summary, this application includes the following beneficial technical effects:

[0031] The nozzle sprays hot air toward the edge of the steel strip, and the baffle blocks the hot air and the water droplets blown off. Since the baffle is arc-shaped, the hot air sprayed toward the baffle enters the airbag from the air inlet frames on both sides of the baffle, thereby inflating the airbag. The hot air in the airbag blows onto the steel strip through the air outlet, which helps to heat and dry the steel strip, reducing heat loss, thereby realizing the reuse of heat in the hot air. At the same time, the flow direction of the hot air is changed, so that the nozzle on the operating side is not easy to blow the hot air directly to the workers, thereby reducing the temperature in the working environment to a certain extent, which helps to improve the comfort of people in the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0033] Figure 2 It is a schematic diagram of the local structure of an embodiment of the present application.

[0034] Figure 3 It is an exploded view of the local structure of an embodiment of the present application.

[0035] Figure 4 It is a schematic diagram of the local structure of an embodiment of the present application.

[0036] Figure 5 yes Figure 4 Enlarged view of part A.

[0037] Explanation of the reference numerals in the accompanying drawings: 1. nozzle; 2. baffle; 3. air inlet frame; 4. air bag; 5. air outlet; 6. guide rod; 7. guide ring; 8. pulling assembly; 81. pull rope; 82. reel; 83. driving member; 831. torsion spring; 9. rotating shaft; 10. fan blade; 11. water collecting box; 12. water absorption belt; 13. floating block; 14. moving block; 15. transmission rod; 16. side beam; 17. telescopic rod; 18. limit block; 19. guide cylinder; 20. ball bearing; 21. support plate; 22. partition plate; 23. vent; 24. slider; 25. through hole. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-5 This application is described in further detail.

[0039] The present application discloses an automatic edge blowing device for pickling steel strip. Figure 1 and Figure 2The automatic edge blowing device for pickling strip steel comprises a side beam 16, a moving block 14, a nozzle 1 fixedly mounted on the moving block 14 and a baffle 2 located on both sides of the strip steel, the positions of the baffle 2 and the nozzle 1 correspond, a water receiving box 11 is fixedly connected below the baffle 2, the water receiving box 11 is slidably arranged, the sliding direction of the water receiving box 11 is parallel to the sliding direction of the moving block 14, a telescopic rod 17 is fixed between the water receiving box 11 and the adjacent side beam 16, the telescopic direction of the telescopic rod 17 is parallel to the sliding direction of the water receiving box 11, the baffle 2 is located between the moving blocks 14 on the upper and lower sides of the strip steel, the moving block 14 is provided with a transmission member for driving the water receiving box 11 to slide in the same direction when the moving block 14 slides, the transmission member comprises a transmission rod 15 fixed between the moving block 14 and the water receiving box 11, and the longitudinal section of the transmission rod 15 is L-shaped to reduce the interference between the transmission rod 15 and the strip steel. In other embodiments, the transmission member can be replaced by a connecting rope and a tension spring, wherein the connecting rope is arranged between the moving block 14 and the water receiving box 11, and the tension spring is arranged between the water receiving box 11 and the corresponding side beam 16, and the tension spring is used to pull the water receiving box 11 to slide in a direction away from the strip. When the moving block 14 moves toward the middle of the strip, the connecting rope pulls the water receiving box 11 to slide synchronously; when the moving block 14 slides toward the edge of the strip, the tension spring pulls the water receiving box 11 to move in a direction away from the strip, and the moving block 14 and the water receiving box 11 can also achieve synchronous movement.

[0040] When working, the grating transmits the width data of the strip to the server. The server compares the strip width data fed back by the grating and the position of the moving block 14 fed back by the encoder, and then instructs the motor to rotate so that the moving block 14 moves to the required position of the edge of the strip. When the moving block 14 moves, the transmission rod 15 drives the water receiving box 11 and the baffle 2 to move synchronously, so as to adjust the position of the baffle 2 according to the strips of different widths to ensure the baffle 2's blocking effect on hot air and water droplets. The water receiving box 11 collects the water on the baffle 2, so that the water droplets on the baffle 2 are not easy to drip onto the device below, causing the device to rust, damage, or leakage.

[0041] Reference Figure 2 and Figure 3The baffle 2 is arc-shaped, and the baffle 2 is convex in the direction away from the strip. In the present embodiment, the baffle 2 is a drying plate with a good water absorption effect, so that the rinsing water splashed onto the baffle 2 is not easy to splash back; air inlet frames 3 are fixedly connected on both sides of the baffle 2, and the air inlet frames 3 are rectangular frames. The arrangement direction of the two air inlet frames 3 is parallel to the forward direction of the strip, and the forward direction of the strip is perpendicular to the plane where the air inlet frames 3 are located. An airbag 4 is fixedly arranged on the side of the air inlet frame 3 away from the baffle 2. In the present embodiment, the cross-section of the airbag 4 is rectangular after inflation, and the opening of the airbag 4 is connected to the air inlet frame 3. The airbag 4 extends in the direction away from the baffle 2. A plurality of air outlets 5 are provided on the side of the airbag 4 close to the strip, and the air outlets 5 correspond to the positions of the strip. In the present embodiment, three air outlets 5 are provided along the extension direction of the airbag 4. In other embodiments, the number of air outlets can be set according to the length of the airbag.

[0042] Reference Figure 2 and Figure 3 , guide rods 6 are slidably penetrated on the upper and lower sides of the air inlet frame 3 close to the strip steel. In this embodiment, the guide rod 6 is a lightweight rod body, and the sliding direction of the guide rod 6 is parallel to the forward direction of the strip steel. The two ends of the guide rod 6 are fixedly connected to the limiting blocks 18, so that the guide rod 6 is not easy to fall off from the air inlet frame 3. A guide cylinder 19 is fixedly connected to the side of the air inlet frame 3 close to the baffle 2. The guide cylinder 19 and the guide rod 6 correspond one to one. The guide cylinder 19 is located on the side of the baffle 2 close to the strip steel. The guide rod 6 is slidably penetrated in the corresponding guide cylinder 19. The upper and lower sides of the airbag 4 close to the strip steel A plurality of guide rings 7 are symmetrically fixed on both sides. In the present embodiment, three guide rings 7 are arranged on the upper and lower sides of the airbag 4. The three guide rings 7 are arranged along the forward direction of the strip steel. The guide rings 7 are slidably mounted on the corresponding guide rods 6. The diameter of the guide rings 7 is smaller than the diameter of the limit blocks 18, so that the guide rings 7 are not easy to fall off the guide rods 6. A plurality of balls 20 are rollingly arranged on the inner wall of the guide cylinder 19, which helps to reduce the friction between the guide rods 6 and the guide cylinder 19. A pulling assembly 8 for pulling the guide rods 6 to slide toward the direction close to the baffle 2 is arranged on the baffle 2.

[0043] Reference Figure 4 and Figure 5In order to facilitate pulling the guide rod 6 to slide in the direction close to the baffle 2, a support plate 21 is fixed on the side of the baffle 2 away from the strip steel, and the support plate 21 corresponds to the air inlet frame 3 one by one. The pulling assembly 8 includes a pull rope 81 fixedly arranged on the limit block 18 at one end of the guide rod 6 close to the baffle 2, a reel 82 rotating on the corresponding support plate 21, and a driving member 83 arranged on the baffle 2. The end of the pull rope 81 away from the limit block 18 passes through the end of the guide cylinder 19 away from the guide rod 6 and passes through the baffle 2 and is wound on the corresponding reel 82. The reel 82 is located on the side of the corresponding air inlet frame 3 close to the baffle 2. A partition plate 22 is fixedly sleeved on the reel 82 to facilitate the upper and lower limit blocks 1 on the same side. The pull rope 81 on 8 is separated to reduce the possibility of the pull rope 81 being entangled together; the pull ropes 81 on the upper and lower sides are wound in the same direction, and a rotating shaft 9 is coaxially fixed on the reel 82, and the rotating shaft 9 rotates on the corresponding support plate 21. The rotation axis of the reel 82 is parallel to the sliding direction of the guide rod 6, and the reels 82 corresponding to the air inlet frames 3 on both sides are located on the same horizontal line. The driving member 83 is used to drive the reel 82 to rotate to reel in the pull rope 81. The driving member 83 includes a torsion spring 831 for driving the reel 82 to rotate to reel in the pull rope 81. The torsion spring 831 is movably mounted on the corresponding rotating shaft 9, and one end of the torsion spring 831 is fixedly connected to the corresponding support plate 21, and the other end is fixedly connected to the corresponding reel 82.

[0044] When the nozzle 1 blows hot air toward the edge of the steel strip, since the position of the baffle 2 corresponds to the nozzle 1, the hot air and the rinsing water on the steel strip are sprayed onto the baffle 2, and the baffle 2 absorbs the rinsing water splashed, so that the rinsing water is not easy to rebound onto the steel strip; since the baffle 2 is arc-shaped, the hot air blown onto the baffle 2 enters the air bag 4 from the air inlet frames 3 on both sides of the baffle 2, and the hot air has a driving force on the air bag 4 away from the baffle 2, thereby driving the guide rod 6 to slide in the direction away from the baffle 2 through the guide ring 7, and the guide rod 6 pulls the reel 82 to rotate the unwinding pull rope 81 through the pull rope 81, and under the action of the hot air, the air bag 4 The airbag 4 inflates and extends, and the guide rod 6 has a certain supporting effect on the airbag 4, so that the airbag 4 is not easy to come into contact with the strip; the hot air in the airbag 4 is sprayed toward the strip through the air outlet 5, which has a certain drying and heating effect on the strip, thereby realizing the utilization and loss of heat, and at the same time changing the wind direction of the hot air, so that the hot air sprayed from the nozzle 1 is not easy to blow directly to the personnel, which is helpful to improve the comfort of the personnel in the working environment; at the same time, because the wind intensity sprayed from the air outlet 5 of the airbag 4 is less than the intensity sprayed from the nozzle 1, the wind sprayed from the air outlet 5 of the airbag 4 close to the feed side is not easy to blow the water on the edge of the strip to move.

[0045] After the blowing is completed, the nozzle 1 stops blowing air toward the edge of the strip. At this time, the torsion spring 831 drives the reel 82 to rotate, so that the reel 82 reels the pull rope 81. The pull rope 81 pulls the guide rod 6 to slide toward the direction close to the baffle 2. The guide rod 6 drives the guide ring 7 to move closer, so that the airbag 4 is folded and stored, which is convenient for transportation of the device.

[0046] Reference Figure 3 and Figure 4 , a vent 23 is provided at a position corresponding to the baffle 2 and the nozzle 1, and a fan blade 10 is rotatably provided on the side of the baffle 2 away from the steel strip, and the fan blade 10 corresponds to the vent 23, and the rotation axis of the fan blade 10 is parallel to the sliding direction of the guide rod 6, and the fan blade 10 is located between the reels 82 corresponding to the air inlet frames 3 on both sides, and the fan blade 10 and the reels 82 on both sides are coaxially fixed, and when the nozzle 1 blows toward the fan blade 10, the fan blade 10 rotates to drive the reel 82 to unwind the pull rope 81. When the nozzle 1 sprays hot air toward the edge of the steel strip, part of the hot air blows toward the fan blade 10 through the vent 23, so that the fan blade 10 rotates, and the fan blade 10 drives the reel 82 to rotate to unwind the pull rope 81, thereby reducing the resistance of the guide rod 6 sliding in the direction away from the baffle 2, so that the airbag 4 can smoothly push the guide rod 6 out of the guide cylinder 19.

[0047] Reference Figure 3 and Figure 4 A water-absorbing belt 12 is fixedly connected to the bottom end of the baffle 2, and the water-absorbing belt 12 is a cotton strip. A floating block 13 is slidably arranged in the water receiving box 11, and the sliding direction of the floating block 13 is arranged in the vertical direction. A slider 24 is fixedly connected to the floating block 13. A slide groove that slides with the slider 24 is provided in the water receiving box 11. A through hole 25 is provided in the vertical direction of the floating block 13. The through hole 25 runs through the upper and lower sides of the floating block 13, and the side of the water-absorbing belt 12 away from the baffle 2 is connected to the inner wall of the through hole 25.

[0048] When there are water droplets on the baffle 2, the water droplets quickly drip from the through hole 25 into the water receiving box 11 through the water absorption belt 12, and the water droplets on the baffle 2 are guided, which helps to speed up the drying speed of the baffle 2; when the rinsing water in the water receiving box 11 reaches a certain amount, it drives the floating block 13 to float up, and the floating block 13 drives the water absorption belt 12 to move up, so that the water absorption belt 12 does not directly contact the rinsing water in the water receiving box 11, thereby effectively ensuring the water absorption and drainage effect of the water absorption belt 12.

[0049] The implementation principle of the embodiment of the present application is as follows: when working, the grating transmits the width data of the steel strip to the server, the server compares the steel strip width data fed back by the grating and the position of the moving block 14 fed back by the code disk, and then instructs the motor to rotate, so that the moving block 14 moves to the required position of the edge of the steel strip, and drives the water receiving box 11 and the baffle 2 to move synchronously through the transmission member; then the nozzle 1 blows hot air toward the edge of the steel strip, the baffle 2 blocks the hot air and the splashed rinsing water, the baffle 2 absorbs part of the rinsing water, and part of it flows into the water receiving box 11 through the water absorption belt 12; part of the hot air blown onto the baffle 2 is blown toward the fan blades 10 through the vents 23, and part of the hot air enters the air bag 4 from the air inlet frames 3 on both sides of the baffle 2 The hot air passing through the vent 23 drives the fan blades 10 to rotate, and the fan blades 10 drive the reel 82 to rotate to unwind the pull rope 81; the hot air entering the air bag 4 through the air inlet frame 3 has a driving force on the air bag 4, thereby driving the guide rod 6 to slide in the direction away from the baffle 2 through the guide ring 7. At this time, the reel 82 unwinds the pull rope 81, so that the sliding resistance of the guide rod 6 is small. Under the action of the hot air, the air bag 4 swells and extends; then the hot air in the air bag 4 is sprayed toward the strip steel through the air outlet 5, which has a certain drying and heating effect on the strip steel, thereby realizing the utilization and loss of heat, and at the same time changing the wind direction of the hot air, so that the hot air is not easy to blow directly to the personnel, which helps to improve the comfort of the personnel in the working environment.

[0050] After the blowing is completed, the nozzle 1 stops blowing air toward the edge of the strip. At this time, the torsion spring 831 drives the reel 82 to rotate, so that the reel 82 reels the pull rope 81. The pull rope 81 pulls the guide rod 6 to slide toward the direction close to the baffle 2. The guide rod 6 drives the guide ring 7 to approach, so that the airbag 4 is folded and stored.

[0051] The present application also discloses a control method for the above-mentioned automatic edge blowing device for pickled strip. The control method comprises the following steps:

[0052] Step 1, parameter setting: setting the moving stroke and compressed air pressure of the moving block 14 through the server;

[0053] Step 2, strip operation signal monitoring: The grating monitors the operation status of the strip by exchanging light beam signals with the grating reflector. When the strip is detected to be running, the grating transmits the strip operation signal to the server, and the server instructs four automatic valves to open for compressed air supply;

[0054] Step 3, parameter adjustment: When the grating detects that the strip is running, the width data of the strip is transmitted to the server. The server compares the strip width data fed back by the grating and the position of the moving block 14 fed back by the encoder. The server then instructs the motor to rotate so that the moving block 14 moves to the required position of the edge of the strip. The moving block 14 drives the water collecting box 11 and the baffle 2 to move to a suitable position away from the strip through the transmission rod 15.

[0055] The configuration of the moving block 14, the grating, the grating reflector and other structures in the embodiment of the present application is the same as that in the related art, and will not be described in detail here.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic edge blowing device for pickling steel strip, comprising a nozzle (1), characterized in that: The invention also comprises baffles (2) located on both sides of the steel strip, wherein the positions of the baffles (2) and the nozzle (1) correspond, the baffles (2) are arc-shaped, and the baffles (2) are convex in the direction away from the steel strip, and air inlet frames (3) are arranged on both sides of the baffles (2), and the arrangement direction of the two air inlet frames (3) is parallel to the forward direction of the steel strip, and an air bag (4) is arranged on the side of the air inlet frame (3) away from the baffle (2), and the opening of the air bag (4) is connected to the air inlet frame (3), and the air bag (4) is close to the steel strip. A plurality of air outlets (5) are provided on one side, a guide rod (6) is slidably penetrated on the air inlet frame (3), the sliding direction of the guide rod (6) is parallel to the forward direction of the steel strip, a plurality of guide rings (7) are provided on the side of the air bag (4) close to the steel strip, the plurality of guide rings (7) are arranged along the forward direction of the steel strip, the guide rings (7) are slidably provided on the guide rod (6), and a pulling component (8) for pulling the guide rod (6) to slide in a direction close to the baffle (2) is provided on the baffle (2).

2. The automatic edge blowing device for pickled strip according to claim 1 is characterized in that: The pulling assembly (8) comprises a pull rope (81) arranged at one end of the guide rod (6) close to the baffle (2), a reel (82) rotating on the baffle (2), and a driving member (83) arranged on the baffle (2), wherein the end of the pull rope (81) away from the guide rod (6) is wound around the reel (82), the reel (82) is located on a side of the corresponding air inlet frame (3) close to the baffle (2), and the driving member (83) is used to drive the reel (82) to rotate so as to reel in the pull rope (81).

3. The automatic edge blowing device for pickled strip according to claim 2 is characterized in that: The reel (82) is coaxially provided with a rotating shaft (9), and the rotating shaft (9) rotates on the baffle (2). The driving member (83) comprises a torsion spring (831) for driving the reel (82) to rotate so as to reel up the pull rope (81). The torsion spring (831) is movably sleeved on the rotating shaft (9), and one end of the torsion spring (831) is provided on the baffle (2), and the other end is provided on the reel (82).

4. The automatic edge blowing device for pickling strip according to claim 2 is characterized in that: The baffle (2) is provided with a fan blade (10) which is rotatably arranged thereon. The fan blade (10) corresponds to the position of the nozzle (1). The fan blade (10) is located between the reels (82) corresponding to the air inlet frames (3) on both sides. The fan blade (10) and the reels (82) on both sides are coaxially connected. When the hot air ejected from the nozzle (1) blows toward the fan blade (10), the fan blade (10) rotates to drive the reel (82) to unwind the pull rope (81).

5. The automatic edge blowing device for pickled strip according to any one of claims 1 to 4, characterized in that: A water receiving box (11) is arranged below the baffle (2), a water absorption belt (12) is arranged at the bottom end of the baffle (2), and the water absorption belt (12) is located inside the water receiving box (11).

6. The automatic edge blowing device for pickled steel strip according to claim 5, characterized in that: A floating block (13) is slidably arranged in the water receiving box (11), the sliding direction of the floating block (13) is arranged along the vertical direction, and the side of the water absorption belt (12) away from the baffle (2) is connected to the floating block (13).

7. The automatic edge blowing device for pickled steel strip according to claim 5, characterized in that: The automatic edge blowing device for pickled steel strip further comprises a slidingly arranged moving block (14), the nozzle (1) being arranged on the moving block (14), the water receiving box (11) being slidably arranged, the sliding direction of the water receiving box (11) being parallel to the sliding direction of the moving block (14), and the moving block (14) being provided with a transmission member for driving the water receiving box (11) to slide in the same direction when the moving block (14) slides.

8. The automatic edge blowing device for pickled steel strip according to claim 7, characterized in that: The transmission member comprises a transmission rod (15) arranged between the moving block (14) and the water receiving box (11).

9. A control method for the automatic edge blowing device for pickled strip according to claim 7, characterized in that: The following steps are involved: Step 1, parameter setting: setting the moving stroke and compressed air pressure of the moving block (14) through the server; Step 2, strip operation signal monitoring: The grating monitors the operation status of the strip by exchanging light beam signals with the grating reflector. When the strip is detected to be running, the grating transmits the strip operation signal to the server, and the server instructs four automatic valves to open for compressed air supply; Step 3, parameter adjustment: When the grating detects that the strip is running, the width data of the strip is transmitted to the server. The server compares the strip width data fed back by the grating and the position of the moving block (14) fed back by the encoder, and then instructs the motor to rotate so that the moving block (14) moves to the required position of the strip. At the same time, the water receiving box (11) and the baffle (2) are driven to move to a suitable position away from the strip through the transmission parts.

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