Steel strip inlet guide device

Abstract

The utility model relates to the field of ultra-thin steel strip rolling, in particular to a steel strip inlet guiding device which comprises a rack and an adjusting mechanism, a central spindle is rotationally installed on the front side of the top of the rack, and a sleeve is arranged on the outer side of the central spindle in a sliding and sleeved mode. The adjusting mechanism is arranged in the mandrel and used for adjusting the position of the sleeve on the outer side of the mandrel. The adjusting mechanism comprises two piston plates and two driving strips, two air guide grooves allowing the piston plates to slide are formed in the mandrel, the outer walls of the two piston plates are slidably attached to the inner walls of the two air guide grooves respectively, a sliding groove is formed in the outer wall of the middle of the mandrel, and each piston plate is fixedly connected with one driving strip. The other ends of the two driving strips slidably penetrate and extend into the sliding grooves correspondingly and are fixedly connected with the inner wall of the sleeve. The sleeve in butt joint with the steel belt is arranged, gas is guided into the corresponding gas guide grooves, the piston plate and the driving strip drive the sleeve to move, the position of a steel belt inlet is adjusted according to the rolling condition of a roller, and uneven abrasion on the roller is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ultra-thin steel strip rolling, and in particular to a steel strip inlet guiding device. Background Technology

[0002] Cold-rolled steel strip is made from hot-rolled coils by rolling at room temperature below the recrystallization temperature. It includes sheets and coils. Steel strips delivered in sheets are called steel plates, also known as box plates or flat plates; steel strips that are delivered in long coils are called steel strips, also known as coils. The width of the steel strip rolled in the cold rolling mill varies depending on the product and raw material specifications. Steel strips of different widths on the cold rolling mill generally enter from the center of the rolls and are rolled completely, which inevitably leads to uneven wear between the center and the sides of the rolls.

[0003] According to research, in existing technologies, the uncoiling and rewinding frames are usually fixed, making it difficult to adjust the conveying and guiding of ultra-thin steel strips. This leads to uneven wear of the rolls, affecting the processing effect during the ultra-thin steel strip rolling process. Furthermore, it is not easy to select the appropriate dust removal method according to the steel strip specifications during the guiding process, resulting in residual dust and debris on the ultra-thin steel strip, which can easily affect the rolling effect during the rolling process.

[0004] Therefore, a steel strip inlet guide device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a steel strip inlet guiding device to solve the above problems, thereby improving the difficulty in adjusting the uncoiling frame for conveying ultra-thin steel strips and the difficulty in selecting the corresponding dust removal method according to the steel strip specifications.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a steel strip inlet guide device, comprising:

[0007] A frame, on the top front side of the frame, has a spindle rotatably mounted, and a sleeve is slidably sleeved on the outer side of the spindle;

[0008] An adjustment mechanism is provided inside the mandrel and is used to adjust the position of the sleeve outside the mandrel. The adjustment mechanism includes two piston plates and two drives. The mandrel has two air guide grooves for sliding the piston plates. The outer walls of the two piston plates are slidably attached to the inner walls of the two air guide grooves. A sliding groove is provided on the outer wall of the middle part of the mandrel. A drive bar is fixedly connected to each piston plate. The other ends of the two drive bars slide through and extend into the sliding groove and are fixedly connected to the inner wall of the sleeve.

[0009] Preferably, the adjustment mechanism further includes two annular boxes respectively installed on the outer sides of the top two ends of the frame. The two annular boxes are rotatably sleeved on the outer sides of the two ends of the spindle. The inner side of the annular boxes is provided with a connecting groove, and the two connecting grooves are respectively connected to two air guide grooves.

[0010] Preferably, an air pump is installed on the inner bottom of the frame, and a three-way pipe is installed at the output end of the air pump. The two ends of the three-way pipe away from the air pump are respectively inserted into the interior of two annular boxes and connected to the corresponding connecting slots.

[0011] Preferably, two exhaust pipes are installed on the outer sides of the left and right ends of the three-way pipe, and solenoid valves are installed on the outer sides of the two ends of the three-way pipe away from the air pump and on the outer sides of the exhaust pipes.

[0012] Preferably, the input end of the air pump is equipped with a folding tube, and a frame-shaped box connected to the other end of the folding tube is installed on the rear top side of the frame. Two dust collection slots are opened on the inner side of the frame-shaped box, and two adjusting plates extending into the dust collection slots are slidably connected inside the frame-shaped box.

[0013] Preferably, an electric push rod is installed at one end of the adjusting plate, and the electric push rod is installed inside the frame box.

[0014] Preferably, the connection between the annular box and the end of the mandrel is subjected to a rotary seal.

[0015] Preferably, an arc-shaped plate is embedded in the folded tube, and a filter plate located inside the folded tube is installed on the inner side of the arc-shaped plate.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model sets up a sleeve that connects with the steel strip, and uses gas to be introduced into the corresponding air guide groove, so that the piston plate on the same side moves with the drive bar, thereby driving the sleeve to move on the mandrel. The steel strip inlet position is adjusted according to the rolling conditions of the rolls, reducing uneven wear on the rolls and ensuring the subsequent rolling effect.

[0018] 2. This utility model uses an adjustable plate and two suction slots inside the frame box to vacuum the upper and lower sides of the ultra-thin steel strip. Before vacuuming, the user can start the electric push rod according to the steel strip specifications to move the adjustable plate to the corresponding position, change the opening size of the suction slot, and thus change the suction force to cooperate with the ultra-thin steel strip of the corresponding specifications for vacuuming. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the mandrel and annular box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the air pump and frame box structure of this utility model;

[0022] Figure 4 This is an exploded view of the adjusting plate and electric push rod structure of this utility model;

[0023] Figure 5 The structure of this utility model Figure 3 An enlarged diagram of A in the diagram.

[0024] In the diagram: 100, frame; 110, air pump; 120, tee pipe; 121, exhaust pipe; 130, bend pipe; 131, filter plate; 140, frame box; 141, adjusting plate; 142, electric push rod; 200, spindle; 210, air guide groove; 300, sleeve; 400, adjusting mechanism; 410, piston plate; 420, annular box; 421, connecting groove; 430, drive bar; 500, solenoid valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In practical implementation: such as Figure 1-5 As shown, a steel strip inlet guide device includes a frame 100 and an adjustment mechanism 400. A spindle 200 is rotatably mounted on the top front side of the frame 100, and a sleeve 300 is slidably sleeved on the outer side of the spindle 200. The adjustment mechanism 400 is disposed inside the spindle 200 and is used to adjust the position of the sleeve 300 on the outer side of the spindle 200.

[0027] The adjusting mechanism 400 includes two piston plates 410 and two drive bars 430. Two air guide grooves 210 for sliding of the piston plates 410 are respectively opened inside both ends of the spindle 200. The outer walls of the two piston plates 410 are slidably attached to the inner walls of the two air guide grooves 210. A sliding groove is opened on the outer wall of the middle part of the spindle 200. A drive bar 430 is fixedly connected to each piston plate 410. The other ends of the two drive bars 430 slide through and extend into the sliding groove and are fixedly connected to the inner wall of the sleeve 300.

[0028] In use, by using an adjustable sleeve to connect with the steel coil, the horizontal position of the sleeve can be changed after each steel strip is rolled, so that the steel strip cyclically contacts different positions of the rolls during the rolling process, thereby ensuring uniform wear on the rolls.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the adjustment mechanism 400 also includes two annular boxes 420 respectively installed on the outer sides of the top two ends of the frame 100. The two annular boxes 420 are rotatably sleeved on the outer sides of the two ends of the spindle 200. The inner side of the annular boxes 420 is provided with a connecting groove 421, and the two connecting grooves 421 are respectively connected to the two air guide grooves 210. Among them, the bottom of the drive bar 430 is provided with rolling balls, which can roll and connect on the inner wall of the sliding groove.

[0030] In use, the mandrel 200 and sleeve 300 are supported by the frame 100, such as Figure 1 As shown, three sets of annularly distributed hydraulic rods are arranged inside the sleeve 300 along its axis. The ends of the hydraulic rods are exposed to the outside of the sleeve 300 for contacting the inside of the coiled steel strip. When it is necessary to adjust the position of the steel strip inlet, gas can be introduced into the interior of the connecting groove 421 and the air guide groove 210 along the annular box 420. Then, the gas drives the piston plate 410 at the corresponding position, thereby causing the drive bar 430 to slide the sleeve 300 on the mandrel 200 for adjustment. With the help of the ball bearings at the bottom of the drive bar 430, the adjustment is smooth, making the left and right movement of the sleeve 300 on the mandrel 200 smoother. After the adjustment is completed, the gas introduction can be stopped.

[0031] It should be noted that a hydraulic system is used to fit and fix the inner wall of the steel strip during the unwinding process. The stability of the hydraulic rod oil circuit can be addressed by adjusting the hydraulic system according to the rear-end settings. This type of operation is a mature existing technology and will not be elaborated here.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, an air pump 110 is installed on the inner bottom of the frame 100. A three-way pipe 120 is installed at the output end of the air pump 110. The two ends of the three-way pipe 120 away from the air pump 110 pass through the interior of two annular boxes 420 and are connected to the corresponding connecting slots 421. Two exhaust pipes 121 are installed on the outer sides of the left and right ends of the three-way pipe 120. Solenoid valves 500 are installed on the outer sides of the two ends of the three-way pipe 120 away from the air pump 110 and on the outer sides of the exhaust pipes 121.

[0033] In use, the air pump 110 is started to adjust the sleeve 300. By closing the solenoid valve 500 on the left side of the three-way pipe 120 and the solenoid valve 500 on the right side of the exhaust pipe 121, gas is allowed to pass through the solenoid valve 500 on the right side of the three-way pipe 120 and then introduced into the annular box 420 on the right side. This gas drives the piston plate 410 and the drive bar 430 on the right side, thereby pushing the sleeve 300 to the left, ensuring smooth adjustment and making the movement of the sleeve 300 more effortless. At this time, the solenoid valve 500 on the left side of the exhaust pipe 121 is opened, allowing the gas in the air guide groove 210 where the piston plate 410 is located on the left side to be discharged along the left side of the exhaust pipe 121. Conversely, when the opening and closing states of the two solenoid valves 500 on the three-way pipe 120 are reversed, the sleeve 300 moves in the opposite direction. After adjustment, gas introduction can be stopped and the corresponding solenoid valve 500 can be closed. The setting of the annular box 420 does not affect the rotation of the spindle 200 and can still complete the gas introduction operation normally.

[0034] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the input end of the air pump 110 is equipped with a folding tube 130, and the top rear side of the frame 100 is equipped with a frame box 140 that communicates with the other end of the folding tube 130. Two dust collection slots are opened on the inner side of the frame box 140, and two adjusting plates 141 extending into the dust collection slots are slidably connected inside the frame box 140.

[0035] During use, in the steel belt conveying process, such as Figure 3 As shown, the steel strip passes through the inside of the frame box 140. At this time, the solenoid valve 500 on the left exhaust pipe 121 and the solenoid valve 500 on the left side of the three-way pipe 120 are also open, while the solenoid valve 500 on the right exhaust pipe 121 is closed. Through the closed solenoid valve 500 on the right exhaust pipe 121 and the closed solenoid valve 500 on the right side of the three-way pipe 120, the gas inside the right annular box 420 is not easily allowed to flow to the outside, thereby locking the piston plate 410 on the right side, thus ensuring the stability of the sleeve 300. Subsequently, the air pump 11... During operation, the folding tube 130 creates negative pressure inside the frame box 140, causing the dust collection trough to collect dust from both sides of the steel belt. The adsorbed gas is discharged along the corresponding exhaust pipe 121. The exposure size of the dust collection trough opening is adjusted by the adjusting plate 141. When the dust collection trough opening is smaller, the adsorption force is greater, and when the dust collection trough opening is larger, the adsorption force is smaller. This can be selected according to different specifications of ultra-thin steel belts to avoid the phenomenon of the steel belt fluctuating due to excessive suction, and also to avoid the phenomenon of floating dust and debris on the steel belt being difficult to remove due to insufficient suction.

[0036] like Figure 4As shown, an electric push rod 142 is installed at one end of the adjusting plate 141, and the electric push rod 142 is installed inside the frame box 140. The electric push rod 142 is used to complete the adjustment operation of the adjusting plate 141.

[0037] like Figure 2 As shown, a rotary seal is applied at the connection between the annular box 420 and the end of the mandrel 200. This method reduces gas leakage between the annular box 420 and the mandrel 200 during gas introduction.

[0038] like Figure 5 As shown, an arc-shaped plate is embedded in the bend tube 130, and a filter plate 131 is installed on the inner side of the arc-shaped plate inside the bend tube 130. By using the filter plate 131, the floating dust and debris adsorbed into the bend tube 130 can be filtered and intercepted, reducing the possibility of damage to the air pump 110.

[0039] like Figure 1 As shown, a motor is fixedly mounted on the top left side of the starting frame 100, and the output shaft of the motor is fixedly connected to the left end of the mandrel 200. During the subsequent unwinding process, the motor on the starting frame 100 drives the mandrel 200 and the sleeve 300 to rotate.

[0040] It should be noted that the guide device is set at the steel strip inlet, which is the uncoiling position. In actual use, a similar guide device is also set at the steel strip winding position. The adjustment of the sleeve 300 on both devices is synchronized, so that the adjustment of the steel strip uncoiling end and winding end is synchronized, and the position of the steel strip on the roll is changed synchronously during subsequent movement.

[0041] Furthermore, the motor mounted on the frame 100 is connected to one end of the spindle 200 via a flange, the annular box 420 is detachably connected to the frame 100, and the tee pipe 120 is detachably connected to the annular box 420. The specific usage and installation requirements can be adjusted accordingly during actual use.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel strip inlet guiding device, characterized in that, include: A frame (100) is provided with a spindle (200) rotatably mounted on the top front side of the frame (100), and a sleeve (300) is slidably sleeved on the outer side of the spindle (200). An adjustment mechanism (400) is provided inside the mandrel (200) and is used to adjust the position of the sleeve (300) outside the mandrel (200). The adjustment mechanism (400) includes two piston plates (410) and two drive bars (430). The mandrel (200) has two air guide grooves (210) for sliding of the piston plates (410). The outer walls of the two piston plates (410) are respectively slidably attached to the inner walls of the two air guide grooves (210). A sliding groove is provided on the middle outer wall of the mandrel (200). Each piston plate (410) is fixedly connected to a drive bar (430). The other ends of the two drive bars (430) are respectively slidably extended into the sliding groove and are fixedly connected to the inner wall of the sleeve (300).

2. The steel strip inlet guide device according to claim 1, characterized in that: The adjustment mechanism (400) also includes two annular boxes (420) respectively installed on the outer sides of the top two ends of the frame (100). The two annular boxes (420) are rotatably sleeved on the outer sides of the two ends of the spindle (200). The inner side of the annular box (420) is provided with a connecting groove (421), and the two connecting grooves (421) are respectively connected to the two air guide grooves (210).

3. The steel strip inlet guide device according to claim 2, characterized in that: An air pump (110) is installed on the inner bottom of the frame (100). A three-way pipe (120) is installed at the output end of the air pump (110). The two ends of the three-way pipe (120) away from the air pump (110) are respectively inserted into the interior of two annular boxes (420) and connected to the corresponding connecting slots (421).

4. The steel strip inlet guide device according to claim 3, characterized in that: Two exhaust pipes (121) are installed on the outer sides of the left and right ends of the three-way pipe (120). Solenoid valves (500) are installed on the outer sides of the two ends of the three-way pipe (120) away from the air pump (110) and on the outer sides of the exhaust pipes (121).

5. The steel strip inlet guide device according to claim 3, characterized in that: The air pump (110) has a folded tube (130) installed at its input end. The frame (100) has a frame box (140) connected to the other end of the folded tube (130) installed on the rear top side. The frame box (140) has two dust collection slots on its inner side. The frame box (140) has two adjusting plates (141) that extend into the dust collection slots and are slidably connected inside the frame box (140).

6. The steel strip inlet guide device according to claim 5, characterized in that: An electric push rod (142) is installed at one end of the adjusting plate (141), and the electric push rod (142) is installed inside the frame box (140).

7. The steel strip inlet guide device according to claim 2, characterized in that: The connection between the annular box (420) and the end of the mandrel (200) is subjected to a rotary seal.

8. The steel strip inlet guide device according to claim 5, characterized in that: An arc-shaped plate is embedded in the folded tube (130), and a filter plate (131) located inside the folded tube (130) is installed on the inner side of the arc-shaped plate.

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