A device for cleaning the surface of a strip before rolling

Abstract

This invention relates to the field of rolling mill equipment, specifically to a pre-rolling strip surface cleaning device, comprising symmetrically arranged fixed frames; a rolling mill roll is rotatably connected between the fixed frames; a strip body is rolled above the rolling mill roll; symmetrically arranged fixed rods are fixed to both sides of the fixed frames; connecting rods are fixed to the fixed rods by screws, and the connecting rods are located below the strip body; a water pipe is fixed to the side of the connecting rod near the rolling mill roll; the connecting rod with the water pipe is then fixed by the fixed rods; and then, through an emulsion system, liquefied rinsing liquid is sprayed from nozzles onto the surface of the rolling mill roll through various connecting heads, rinsing the surface of the rolling mill roll. Since the rolling mill roll rotates continuously during operation, it can work in conjunction with the nozzles to rinse the surface of the rolling mill roll, cleaning away foreign matter on the surface of the rolling mill roll. Compared with the prior art, this greatly reduces the number of product rejections.

Description

Technical Field

[0001] This invention relates to the field of rolling mill equipment technology, and in particular to a strip steel surface cleaning device before rolling. Background Technology

[0002] Rolling mills, also known as rolling mills, can crush and homogenize viscous substances. During the production and preparation of strip steel, it is rolled by a six-roll five-unit mill to make the strip steel undergo uniform plastic deformation.

[0003] The six-roll five-stand rolling mill adopts a pressure processing method. During processing, the workpiece undergoes plastic deformation through large rolling force. The surface quality of the strip steel during the rolling process mainly depends on whether the roller surface in contact with the strip steel is clean and the cleanliness of the emulsion system.

[0004] However, during production, the five-roll mill unit in the pickling and rolling workshop of Shagang Cold Rolling Plant discovered that the outermost roll of the three-roll stabilizing roll at the mill entrance had foreign matter adhering to its surface due to the lack of emulsion washing, causing foreign matter to be pressed into the rolled coil. The other roll surfaces that were washed with emulsion were very clean and no foreign matter was found. If foreign matter adhering to the roll surface is not cleaned in time, it will enter the rolling mill with the strip and cause foreign matter to be pressed into the roll during rolling, resulting in product rejection. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the surface of the rolls cannot be cleaned in time, which causes foreign objects to be pressed into the strip during the rolling process, thus leading to product rejection.

[0006] To solve the above-mentioned technical problems, the present invention provides a strip steel surface cleaning device before rolling, comprising symmetrically arranged fixed frames; a rolling mill is rotatably connected between the fixed frames; a strip steel body is rolled above the rolling mill; symmetrically arranged fixed rods are fixed to both sides of the fixed frames; connecting rods are fixed to the fixed rods by screws, and the connecting rods are located below the strip steel body; a water pipe is fixed to the side of the connecting rod near the rolling mill; multiple interconnected connectors are fixed to the water pipe at equal intervals; a bend is fixed to each connector; a nozzle is fixed to each bend; and a collection assembly is provided at the bottom of the rolling mill for collecting rinsing waste.

[0007] In one embodiment of the present invention, a first protrusion symmetrically arranged is fixedly connected to the connecting rod; a hinge rod is fixedly connected between the first protrusions; a baffle is rotatably connected to the hinge rod via a torsion spring, and the other end of the baffle is in contact with the surface of the roll.

[0008] In one embodiment of the present invention, the end of the baffle near the roll is rotatably connected to a first sleeve via a rotating shaft, and the end of the baffle is in contact with the surface of the roll via the first sleeve.

[0009] In one embodiment of the present invention, the collecting assembly includes a collecting groove fixedly disposed below the roll; a second protrusion symmetrically arranged is fixedly connected to the middle of the collecting groove; a guide plate is connected to the second protrusion via a torsion spring; and the other end of the guide plate is in contact with the roll.

[0010] In one embodiment of the present invention, a partition is fixedly connected to the middle of the collection tank; a filter hole is opened on the surface of the guide plate; a second sleeve is rotatably connected to one end of the guide plate near the roller, and the guide plate is in contact with the surface of the roller through the second sleeve; scraping components are provided at both ends of the second sleeve, and the scraping components include scrapers.

[0011] In one embodiment of the present invention, the scraping assembly includes first grooves symmetrically formed at both ends of the guide plate; second grooves are formed at the ends of the second sleeves corresponding to the outer sides of the first grooves; a first shaft is rotatably connected to the side of the second groove away from the central axis of the second sleeve; a first belt is rotatably connected to the corresponding first shafts and the central axis of the second sleeve; a second shaft is rotatably connected to the end of the corresponding first groove away from the first shaft; a second belt is rotatably connected to the corresponding first shaft and the second shaft; a round rod is fixedly connected to the second belt; an inverted U-shaped scraper is slidably connected to the first groove; a groove is formed on the scraper corresponding to the position of the round rod, and the round rod is slidably connected in the groove.

[0012] In one embodiment of the present invention, the baffle is pressed down by the torsion spring; the guide plate is lifted up by the torsion spring.

[0013] In one embodiment of the present invention, the second sleeve is made of silicone and is used to increase the friction of the surface of the second sleeve.

[0014] In one embodiment of the present invention, the ends of the first shaft, the second shaft, and the central shaft of the second sleeve are all toothed; the first belt and the second belt are both synchronous belts and mesh with corresponding teeth.

[0015] In one embodiment of the present invention, a nut is welded to one end of the nozzle near the bend, and the nozzle is threadedly connected to the bend via the nut.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] The present invention discloses a pre-rolling strip surface cleaning device. First, a water pipe is connected to an emulsion system to provide the water pipe with emulsion rinsing liquid and rinsing pressure. Then, a fixing frame is used to fix the roll and the fixing rod, and to provide rotational power to the roll. Next, the fixing rod is used to fix the connecting rod to which the water pipe is fixed. Then, the emulsion system sprays the liquefied rinsing liquid from the nozzles onto the surface of the roll through each connector, and rinses the surface of the roll. Since the roll rotates continuously during operation, it can work in conjunction with the nozzles to rinse the surface of the roll, cleaning away foreign matter on the surface of the roll. Compared with the prior art, this greatly reduces the number of product rejections.

[0018] The present invention discloses a pre-rolling strip surface cleaning device. Because the second sleeve is in contact with the surface of the roll, the roll can drive the second sleeve to rotate. At this time, the second sleeve drives the first shaft to rotate via the first belt. The first shaft, in conjunction with the second shaft, drives the second belt to rotate. Since a round rod is fixed to the second belt, the round rod can move along with the second belt. When the round rod moves, it is in two states: two-stage rotation and two-stage horizontal movement. When the round rod moves horizontally, it drives the scraper to move back and forth, thus cleaning the surface of the guide plate. When the round rod rotates, it slides in the groove on the scraper, thereby changing the horizontal movement direction of the scraper, achieving the purpose of driving the scraper to clean the surface of the guide plate and preventing the filter holes from becoming clogged. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0024] Figure 5 This is a perspective view of the nozzle structure of the present invention;

[0025] Figure 6 This is a perspective view of the guide plate structure of the present invention;

[0026] Figure 7 This is a perspective view of the scraper structure of the present invention;

[0027] Figure 8 for Figure 7 A magnified view of a section at point C;

[0028] Figure 9 This is a diagram showing the product manufacturing process results of the present invention;

[0029] Explanation of reference numerals in the accompanying drawings: 1. Fixing frame; 2. Roller; 3. Fixing rod; 4. Connecting rod; 5. Water pipe; 51. Connector; 52. Bend; 53. Nozzle; 6. First protrusion; 61. Hinge rod; 62. Baffle; 63. First sleeve; 7. Strip steel body; 8. Collection trough; 81. Second protrusion; 82. Guide plate; 821. Filter hole; 83. First trough; 84. Second trough; 85. Second sleeve; 86. First shaft; 87. Second shaft; 88. First belt; 89. Second belt; 810. Round rod; 811. Scraper; 812. Slide groove; 9. Partition. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0031] Please see Figure 1 - Figure 9 This invention provides a strip steel surface cleaning device before rolling, comprising symmetrically arranged fixed frames 1; a roll 2 is rotatably connected between the fixed frames 1; a strip steel body 7 is rolled and pressed above the roll 2; symmetrically arranged fixed rods 3 are fixed to both sides of the fixed frames 1; a connecting rod 4 is fixed to the fixed rod 3 by screws, and the connecting rod 4 is located below the strip steel body 7; a water pipe 5 is fixed to the side of the connecting rod 4 near the roll 2; a plurality of interconnected connectors 51 are fixed to the water pipe 5 at equal intervals; a bend 52 is fixed to each connector 51; a nozzle 53 is fixed to each bend 52; and a collection assembly is provided at the bottom of the roll 2 for collecting rinsing waste. To remove foreign matter from the surface of roll 2 before strip rolling and ensure product quality, the specific operation involves first connecting water pipe 5 to the emulsion system, providing emulsion rinsing fluid and rinsing pressure to water pipe 5. Then, roll 2 and fixing rod 3 are secured by fixing frame 1, providing rotational power to roll 2. Next, fixing rod 3 secures connecting rod 4 to which water pipe 5 is attached. The emulsion system then sprays the liquefied rinsing fluid through various connectors 51 from nozzles 53 onto the surface of roll 2, rinsing it. Since roll 2 rotates continuously during operation, this, combined with the nozzles 53, effectively rinses the surface of roll 2, removing foreign matter. Figure 9As shown, the light-colored part represents the production roll with foreign object pressing defects before the improvement, and the dark-colored part represents the production roll without foreign object pressing defects after the improvement. Compared with the existing technology, the number of product rejections has been greatly reduced.

[0032] Furthermore, such as Figure 1 and Figure 5 As shown, symmetrically arranged first protrusions 6 are fixedly connected to the connecting rod 4; a hinge rod 61 is fixedly connected between the first protrusions 6; a baffle 62 is rotatably connected to the hinge rod 61 via a torsion spring, and the other end of the baffle 62 is in contact with the surface of the roll 2. Since the nozzle 53 generates a large amount of waste liquid when spraying emulsion to rinse the roll 2, impurities mixed in the waste liquid may flow into the space between the roll 2 and the strip body 7, leading to product rejection. At this time, the baffle 62, rotatably connected by the protrusions and hinge rod 61, blocks the waste liquid, preventing it from entering the space between the roll 2 and the strip and causing product rejection. Simultaneously, the torsion spring presses the end of the baffle 62 against the strip surface, improving the waste liquid blocking effect. This design also allows for the installation of rolls 2 of various sizes, facilitating use.

[0033] Furthermore, such as Figure 3 As shown, the end of the baffle 62 near the roll 2 is rotatably connected to a first sleeve 63 via a rotating shaft, and the end of the baffle 62 is in contact with the surface of the roll 2 via the first sleeve 63. Since the roll 2 rotates continuously during operation, the first sleeve 63 can prevent wear caused by the baffle 62 being in contact with the surface of the roll 2, thus avoiding poor waste liquid shielding effect.

[0034] Furthermore, such as Figure 1 and Figure 4 As shown, the collection assembly includes a collection trough 8 fixedly disposed below the roller 2; symmetrically arranged second protrusions 81 are fixedly connected to the middle of the collection trough 8; a guide plate 82 is connected to the second protrusion 81 via a torsion spring; the other end of the guide plate 82 is in contact with the roller 2. Since waste liquid is continuously generated after rinsing, the collection trough 8 and the guide plate 82 allow the waste liquid flowing down from above the roller 2 to be collected through the guide plate 82 and the collection trough 8, facilitating its disposal by operators and preventing pollution of the workshop.

[0035] Furthermore, such as Figure 2As shown, a partition 9 is fixedly connected to the center of the collection tank 8; a filter hole 821 is provided on the surface of the guide plate 82; a second sleeve 85 is rotatably connected to one end of the guide plate 82 near the roller 2, and the guide plate 82 is in contact with the surface of the roller 2 through the second sleeve 85; scraping components are provided at both ends of the second sleeve 85, and the scraping components include scrapers 811. In order to allow the waste liquid to flow on the guide plate 82, when the waste liquid flows through the filter hole 821, the waste liquid enters one side of the partition 9 in the collection tank 8 through the filter hole 821, while the impurities that cannot pass through the filter hole 821 continue to enter the other side of the partition 9 in the collection tank 8 through the guide plate 82, thereby achieving the purpose of separation, making it more convenient for operators to process and recycle, and the scraper 811 can quickly sweep the filtered impurities from the guide plate 82 into the collection tank 8.

[0036] Furthermore, such as Figure 6 , Figure 7 and Figure 8 As shown, the scraping assembly includes first grooves 83 symmetrically opened at both ends of the guide plate 82; second grooves 84 are opened at the ends of the second sleeves 85 corresponding to the outer sides of the first grooves 83; a first shaft 86 is rotatably connected to the side of the second groove 84 away from the central axis of the second sleeve 85; a first belt 88 is rotatably connected between the corresponding first shafts 86 and the central axis of the second sleeves 85; a second shaft 87 is rotatably connected to the end of the first groove 83 away from the first shaft 86; a second belt 89 is rotatably connected between the corresponding first shafts 86 and the second shafts 87; a round rod 810 is fixedly connected to the second belt 89; an inverted U-shaped scraper 811 is slidably connected in the first groove 83; a sliding groove 812 is opened at the position of the scraper 811 corresponding to the round rod 810, and the round rod 810 is slidably connected in the sliding groove 812. To achieve the purpose of scraper 811 removing impurities from guide plate 82 and avoiding affecting subsequent waste liquid filtration and separation, in actual use, since the second sleeve 85 is in contact with the surface of roller 2, roller 2 can drive the second sleeve 85 to rotate. At this time, the second sleeve 85 drives the first shaft 86 to rotate via the first belt 88. The first shaft 86 drives the second belt 89 to rotate through its cooperation with the second shaft 87. Since a round rod 810 is fixed to the second belt 89, the round rod 810 can follow the second... The belt 89 moves, and when the round rod 810 moves, it is in two states: two-stage rotation and two-stage horizontal movement. When the round rod 810 moves horizontally, it can drive the scraper to move back and forth, which can clean the surface of the guide plate 82. When the round rod 810 rotates, it slides in the groove 812 on the scraper, thereby changing the horizontal movement direction of the scraper, achieving the purpose of driving the scraper to clean the surface of the guide plate 82 and preventing the filter hole 821 from becoming blocked.

[0037] Furthermore, such as Figure 2 As shown, the baffle 62 is pressed down by the torsion spring; the guide plate 82 is lifted up by the torsion spring. To ensure that the ends of the baffle 62 and the guide plate 82 are tightly fitted to the surface of the roll 2, the torsion springs allow for the installation of rolls 2 of various sizes, thus expanding the applicability.

[0038] Furthermore, such as Figure 2 As shown, the second sleeve 85 is made of silicone and is used to increase the friction on the surface of the second sleeve 85. In order to improve the transmission effect of the second sleeve 85 on the scraper, the material of the second sleeve 85 is set to silicone, which has higher friction, which can greatly improve the transmission effect of the roller 2 on the second sleeve 85.

[0039] Furthermore, such as Figure 7 As shown, the ends of the central shafts of the first shaft 86, the second shaft 87, and the second sleeve 85 are all toothed; the first belt 88 and the second belt 89 are both synchronous belts and mesh with corresponding teeth. By using synchronous belts and teeth, not only can the noise from chain drives be avoided, but the same synchronization and coordination as chain drives can also be achieved, resulting in better scraper performance.

[0040] Furthermore, such as Figure 3 As shown, a nut is welded to one end of the nozzle 53 near the bend 52, and the nozzle 53 is threadedly connected to the bend 52 via the nut. The nut allows for easy inspection of the emulsion nozzle at the three-roll stabilizer roller during each maintenance check; if blockage is found, it can be easily removed, cleared, cleaned, and reinstalled.

[0041] Working principle:

[0042] First, connect water pipe 5 to the emulsion system to provide emulsion rinsing fluid and rinsing pressure to water pipe 5. Then, fix roller 2 and fixing rod 3 with fixing bracket 1 and provide rotational power to roller 2. Next, fix connecting rod 4, to which water pipe 5 is fixed, with fixing rod 3. Then, through the emulsion system, the liquefied rinsing fluid is sprayed from nozzle 53 onto the surface of roller 2 through each connector 51, rinsing the surface of roller 2. Since roller 2 rotates continuously during operation, it can work in conjunction with nozzle 53 to rinse the surface of roller 2, cleaning away foreign matter. Figure 9 As shown, the light-colored part represents the production roll with foreign object pressing defects before the improvement, and the dark-colored part represents the production roll without foreign object pressing defects after the improvement. Compared with the existing technology, the number of product rejections is greatly reduced.

[0043] A baffle 62 is rotatably connected by a protrusion and hinge rod 61 to block the waste liquid and prevent it from entering between the roll 2 and the strip steel, thus avoiding product defect. At the same time, a torsion spring presses the end of the baffle 62 against the surface of the strip steel, making the waste liquid blocking effect better. It can also be installed on rolls 2 of various sizes, making it easy to use.

[0044] By setting up the collection tank 8 and the guide plate 82, the waste liquid flowing down from the roller 2 can be collected through the guide plate 82 and the collection tank 8, making it convenient for operators to handle and avoiding pollution of the workshop;

[0045] Since the second sleeve 85 is in contact with the surface of the roller 2, the roller 2 can drive the second sleeve 85 to rotate. At this time, the second sleeve 85 drives the first shaft 86 to rotate through the first belt 88. The first shaft 86 drives the second belt 89 to rotate through the cooperation with the second shaft 87. Since a round rod 810 is fixed on the second belt 89, the round rod 810 can move with the second belt 89. When the round rod 810 moves, it is in two states: two-stage rotation and two-stage horizontal movement. When the round rod 810 moves horizontally, it can drive the scraper to move back and forth, which can clean the surface of the guide plate 82. When the round rod 810 rotates, the round rod 810 slides in the groove 812 on the scraper, thereby changing the horizontal movement direction of the scraper, achieving the purpose of driving the scraper to clean the surface of the guide plate 82 and avoiding clogging of the filter hole 821.

[0046] Obviously, the above embodiments are merely illustrative examples for clarity and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A strip steel surface cleaning device before rolling, characterized in that: The system includes symmetrically arranged fixed frames (1); rollers (2) are rotatably connected between the fixed frames (1); a strip body (7) is rolled and pressed above the rollers (2); symmetrically arranged fixed rods (3) are fixed to both sides of the fixed frames (1); connecting rods (4) are fixed to the fixed rods (3) by screws, and the connecting rods (4) are located below the strip body (7); a water pipe (5) is fixed to the side of the connecting rod (4) near the rollers (2); multiple interconnected connectors (51) are fixed to the water pipes (5) at equal intervals; a bend (52) is fixed to each connector (51); a nozzle (53) is fixed to each bend (52); a collection component is provided at the bottom of the rollers (2), and the collection component is used to collect washing waste. The collection assembly includes a collection trough (8) fixedly disposed below the roll (2); a second protrusion (81) symmetrically arranged is fixedly connected to the middle of the collection trough (8); a guide plate (82) is connected to the second protrusion (81) via a torsion spring; the other end of the guide plate (82) is in contact with the roll (2); A partition (9) is fixedly connected to the middle of the collection tank (8); a filter hole (821) is opened on the surface of the guide plate (82); a second sleeve (85) is rotatably connected to one end of the guide plate (82) near the roller (2), and the guide plate (82) is attached to the surface of the roller (2) through the second sleeve (85); scraping components are provided at both ends of the second sleeve (85), and the scraping components include scrapers (811). The scraping assembly includes first grooves (83) symmetrically formed at both ends of the guide plate (82); second grooves (84) are formed at the ends of the second sleeve (85) corresponding to the outer sides of the first grooves (83); a first shaft (86) is rotatably connected to the side of the second groove (84) away from the central axis of the second sleeve (85); a first belt (88) is rotatably connected to the corresponding first shafts (86) and the central axis of the second sleeve (85); the corresponding first grooves (83) The ends away from the first shaft (86) are rotatably connected to the second shaft (87); the first shaft (86) and the second shaft (87) are rotatably connected to each other; a round rod (810) is fixedly connected to the second belt (89); an inverted U-shaped scraper (811) is slidably connected in the first groove (83); the scraper (811) is provided with a groove (812) at the position corresponding to the round rod (810), and the round rod (810) is slidably connected in the groove (812).

2. The strip surface cleaning device before rolling according to claim 1, characterized in that: The connecting rod (4) is fixed with symmetrically arranged first protrusions (6); the first protrusions (6) are fixed together with hinge rods (61); the hinge rods (61) are rotatably connected with baffles (62) via torsion springs, and the other end of the baffles (62) is in contact with the surface of the roll (2).

3. The strip surface cleaning device before rolling according to claim 2, characterized in that: The baffle (62) is rotatably connected to the first sleeve (63) at one end near the roll (2) via a rotating shaft, and the end of the baffle (62) is attached to the surface of the roll (2) via the first sleeve (63).

4. The strip surface cleaning device before rolling according to claim 2, characterized in that: The baffle (62) is pressed down by the torsion spring; the guide plate (82) is lifted up by the torsion spring.

5. The strip surface cleaning device before rolling according to claim 4, characterized in that: The second sleeve (85) is made of silicone and is used to increase the friction on the surface of the second sleeve (85).

6. The strip surface cleaning device before rolling according to claim 5, characterized in that: The ends of the central shafts of the first shaft (86), the second shaft (87), and the second sleeve (85) are all toothed; the first belt (88) and the second belt (89) are both synchronous belts and mesh with each other's corresponding teeth.

7. The strip surface cleaning device before rolling according to claim 6, characterized in that: The nozzle (53) is welded to a nut at one end near the bend (52), and the nozzle (53) is threadedly connected to the bend (52) via the nut.

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