Roll working surface oiling and rust prevention device

Abstract

The present invention discloses an oiling and rust-proof device for the working surface of a rolling mill roll. A bracket (14) is slidably connected to a base (1), and two support roller sets (8) are provided on the bracket (14); a paper feeder (5) is arranged on the bracket (14), and two ends of a support rod (72) of an oiling member (7) are respectively connected to a brush (71) and the outer shell of the paper feeder (5). Two ends of a fixing frame (91) of a paper pressing device (9) are respectively hinged to the bracket (14) and an auxiliary roller (93), and two ends of an adjusting member (92) are respectively hinged to the middle parts of the bracket (14) and the fixing frame (91). The inclination angle of the fixing frame (9) is adjusted by the adjusting member (92), and the auxiliary roller (93) and the fixing frame (9) are fixed so that the auxiliary roller (93) contacts an anti-rust paper (11), and the anti-rust paper (11) is tightly attached to the working surface of the roll (3) by extrusion. This solves the problems of high labor intensity of manual paper wrapping in the prior art, large gap between the anti-rust paper and the roll, and poor rust-proof effect.

Description

Technical Field

[0001] The present invention discloses an oiling and rust prevention device for the working surface of a roll, belonging to the technical field of roll rust prevention. Background Art

[0002] Rolls are important components that are consumed in large quantities in steel rolling production. The quality of the rolls not only affects the surface quality of the rolled products, but also affects the operation rate of the rolling mill. After use and during transportation, etc., the rolls need to be maintained and stored. Otherwise, rust is likely to occur on the surface, affecting their normal use.

[0003] Currently, for the maintenance of rolls, anti-rust oil is mainly applied manually and then a layer of anti-rust paper is manually wrapped around the outer layer of the anti-rust oil to prevent the loss of anti-rust oil for the storage of the rolls. During actual operation, the connecting parts at both ends of the roll are placed on the support, and the roll is rotated by an external force to apply the oil. Then, one end of the cut anti-rust paper is adhered to the outer surface of the roll, and the roll is rotated again to achieve the purpose of covering the paper. During actual operation, the applicant found that due to the large length of the working surface of the roll, the anti-rust paper does not fit tightly with the roll surface, the anti-rust oil is easily lost, resulting in poor maintenance effect, poor sealing, poor corrosion resistance, short storage time. At the same time, due to the large weight of the roll, the labor intensity of repeatedly rotating the roll is large. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing manual paper wrapping has a large labor intensity, and there is a large gap between the anti-rust paper and the roll, resulting in a poor rust prevention effect.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an oiling and rust prevention device for the working surface of a roll, comprising:

[0006] A support, a base slidably connected to the lower end of the support, and two support roller groups at both ends of the base, and one side of the support roller groups is driven by a motor;

[0007] A paper feeder, the paper feeder is arranged on the support and is located outside the axis of the support roller groups, and the paper outlet of the paper feeder faces the middle of the connection line of the two support roller groups;

[0008] An oiling member, the oiling member includes a support rod and a brush, one end of the support rod is connected to the brush, and the other end is connected to the outer shell of the paper feeder;

[0009] A paper pressing device, the paper pressing device includes a fixed frame, an adjusting member and an auxiliary roller, one end of the fixed frame is hinged to the support, the other end is hinged to the auxiliary roller, and the included angle between the auxiliary roller and the fixed frame can be fixed, one end of the adjusting member is hinged to the support, and the other end is hinged to the middle of the fixed frame.

[0010] Among them, the fixing bracket in the above device is of a Y-shaped structure. The fixing bracket includes a movable arm and a body. One end of the movable arm is hinged to the middle of the body, and the angle between the movable arm and the body can be fixed. Auxiliary rollers are hinged to the upper ends of both the movable arm and the body, and the angles between the auxiliary rollers and the movable arm and the body can be fixed.

[0011] Furthermore, the above device further includes an adjusting cylinder. The cylinder body of the adjusting cylinder is hinged to the middle of the body, and the piston rod of the cylinder is hinged to the middle of the movable arm.

[0012] Among them, the fixing bracket in the above device is of a strip-shaped structure.

[0013] Among them, the auxiliary roller in the above device includes a fixing member with a trapezoidal structure, a connecting belt, and two cylindrical roller bodies arranged at intervals. The two roller bodies are connected by the connecting belt. The small end of the fixing member is hinged to the upper end of the fixing bracket, and the angle between the fixing member and the fixing bracket can be fixed. The roller bodies are hinged to the two side ends of the large end of the fixing member.

[0014] Furthermore, the above device further includes a buffer elastic member. The buffer elastic member is arranged at the hinge joint between the roller body and the fixing member, so that the roller body can reciprocate along the radial direction of the hinge axis on the fixing member.

[0015] Among them, the above device further includes a pressing block and a sliding trolley. The pressing block is arranged at the paper outlet of the paper feeder. The lower end surface of the pressing block is horizontally arranged and can be coplanar with the upper end surface of the connecting belt of the movable arm. The sliding trolley can reciprocate above the rib plate at the outlet of the paper feeder, and the pressing block is fixed on the sliding trolley.

[0016] Among them, the above device further includes a horizontally arranged moving cylinder. The cylinder body of the moving cylinder is hinged to the base, and the rod body is hinged to the outside of the bracket.

[0017] Among them, the above device further includes a jacking cylinder. The jacking cylinders are arranged at intervals below the supporting roller group. Grooves are arranged at the corresponding positions on the base. The jacking cylinders are vertically arranged in the grooves, and the cylinder bodies are connected to the base, and the cylinder bodies are connected to the upper ends of the brackets. A supporting column with an inverted trapezoidal structure at the upper end is vertically arranged on the outside of the supporting roller group, and the lower end of the supporting column is connected to the bracket.

[0018] The beneficial effects of the present invention are as follows: The device has a simple structure and is easy to manufacture. The device slidably connects the bracket and the base, and the paper feeder is arranged on the bracket. By sliding the bracket, the paper outlet of the paper feeder can be aligned with the middle of the two sets of supporting wheels, ensuring accurate wrapping of the working surface of the rolling mill with paper. Both ends of the rolling mill are supported by the two sets of supporting wheels at the end of the base. The motor drives one set of supporting wheels to rotate, so that the entire rolling mill can rotate. Adjust the support rod of the oiling part to make the brush contact the surface of the rolling mill, and set an anti-rust oil pipe on the brush to achieve the purpose of oiling. The paper feeder sends the end of the anti-rust paper to the surface of the rolling mill. Adjust the inclination angle of the fixing frame through the adjusting part, and at the same time fix the auxiliary roller and the fixing frame to keep the auxiliary roller in contact with the anti-rust paper. Through the extrusion of the auxiliary roller, the anti-rust paper is closely attached to the working surface of the rolling mill, thereby preventing the anti-rust oil from falling and affecting the working surface of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 for the present invention Figure 1 is a schematic structural diagram of the A-A cross-section in the present invention;

[0021] Figure 3 for the present invention Figure 2 is an enlarged schematic diagram of the structure at I in the present invention;

[0022] Figure 4 for the present invention Figure 2 is an enlarged schematic diagram of the structure at II in the present invention;

[0023] Figure 5 for the present invention Figure 2 is another schematic structural diagram of the present invention;

[0024] Figure 6 for the present invention Figure 2 is an enlarged schematic diagram of the structure at II in the present invention;

[0025] Figure 7 for the present invention Figure 1 is a schematic structural diagram of the A-A cross-section in the present invention;

[0026] Figure 8 for the present invention Figure 1 is a right view structural schematic diagram of the fixed support frame in the present invention.

[0027] The markings in the figure are as follows: 1 is the base, 2 is the motor, 21 is the driven wheel, 22 is the belt, 23 is the driving wheel, 3 is the roller, 4 is the support column, 5 is the paper feeder, 51 is the rib plate, 6 is the pressing block, 7 is the oiling member, 71 is the brush, 72 is the support rod, 73 is the angle locking member, 8 is the supporting roller group, 9 is the paper pressing device, 91 is the fixing frame, 911 is the movable arm, 92 is the adjusting member, 93 is the auxiliary roller, 931 is the roller body, 932 is the connecting belt, 933 is the buffer elastic member, 934 is the fixing member, 10 is the oil receiving tank, 11 is the rust-proof paper, 12 is the moving cylinder, 13 is the lifting cylinder, and 14 is the bracket. Detailed implementation mode

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] As Figures 1 to 8 shown, the oiling and rust-proof device for the working surface of the roller of the present invention includes:

[0030] A bracket 14, a base 1 slidably connected to the lower end of the bracket 14, and two supporting roller groups 8 are provided at both ends of the base 1, and one side of the supporting roller group 8 is driven by a motor 2;

[0031] A paper feeder 5, the paper feeder 5 is arranged on the bracket 14 and is located outside the axis of the supporting roller group 8, and the paper outlet of the paper feeder 5 faces the middle of the two supporting roller groups 8;

[0032] An oiling member 7, the oiling member 7 includes a support rod 72 and a brush 71, one end of the support rod 72 is connected to the brush 71, and the other end is connected to the outer shell of the paper feeder 5;

[0033] Paper pressing device 9, the paper pressing device 9 includes a fixing frame 91, an adjusting member 92 and an auxiliary roller 93. One end of the fixing frame 91 is hinged to the bracket 14, and the other end is hinged to the auxiliary roller 93, and the included angle between the auxiliary roller 93 and the fixing frame 91 can be fixed. One end of the adjusting member 92 is hinged to the bracket 14, and the other end is hinged to the middle of the fixing frame 91. Those skilled in the art can understand that in this device, the bracket 14 and the base 1 are slidably connected, and the paper feeder 5 is arranged on the bracket 14. By sliding the bracket 14, the paper outlet of the paper feeder 5 can be aligned with the middle of the connection line of the two idler wheel groups 8, that is, the extended paper outlet is tangent to the lower end of the working surface of the placed rolling mill 3, ensuring that the rust-proof paper is tangentially wrapped around the rolling mill 3 and ensuring accurate paper wrapping on the working surface of the rolling mill 3. Both ends of the rolling mill 3 are supported by the two idler wheel groups 8 at the end of the base 1. The motor 2 drives one side of the idler wheel group 8 to rotate, so that the entire rolling mill 3 can rotate. Adjust the support rod 72 of the oiling member 7 so that the brush 71 can contact the surface of the rolling mill 3. The included angle between the brush 71 and the support rod 72 is adjusted by the angle locking member 73, so that the brush 71 can always face the surface of the rolling mill 3. At the same time, in actual use, setting an anti-rust oil pipe on the brush 71 can achieve the purpose of oiling. It is preferable that the support rod 72 is a telescopic structure, and a cylinder or a mechanical telescopic structure (similar to the sliding structure of a drawer cabinet) can be used. In order to prevent waste of anti-rust oil, this device also preferably has an oil receiving groove 10 arranged below the brush 71. The paper feeder 5 sends the end of the rust-proof paper 11 to the surface of the rolling mill 3. By adjusting the adjusting member 92, the inclination angle of the fixing frame 91 is adjusted, and at the same time, the auxiliary roller 93 and the fixing frame 91 are fixed to keep the auxiliary roller 93 in contact with the rust-proof paper 11. Through the extrusion of the auxiliary roller 93, the rust-proof paper 11 is closely attached to the working surface of the rolling mill 3 to achieve the purpose of paper pressing. The number of the oiling members 7 of this device can be appropriately increased according to the length of the working surface of the rolling mill 3. The fixing frame 91 of this device is hinged to the bracket 14, one end of the adjusting member 92 is hinged to the bracket 14, and the other end is hinged to the middle of the fixing frame 91. It is preferable that the hinge points of the fixing frame 91 and the adjusting member 92 with the bracket 14 are located on the same plane of the bracket 14. Since the upper end of the fixing frame 91 is hinged with the auxiliary roller 93, and the auxiliary roller 93 needs to directly contact the rust-proof paper 11 during actual work to ensure the purpose of fitting the rust-proof paper 11 and the working surface of the rolling mill 3. Therefore, there should be certain requirements for the angle of the auxiliary roller 93. This device preferably fixes the included angle between the fixing frame 91 and the auxiliary roller 93 to ensure good contact between the contact surface of the auxiliary roller 93 and the rust-proof paper 11 at all times. The structural form of the fixing frame 91 is not fixed and can be specifically made according to the actual on-site installation conditions. The fixing frame 91 can be a plurality of strip-shaped structures arranged at intervals, and the fixing frames 91 are connected into one body by connecting rods, and the adjusting member 92 is hinged to the connecting rod to achieve hinging with the fixing frame 91. Since the working surface of the rolling mill 3 is relatively long, the auxiliary roller 93 can be a cylindrical structure or a plurality of spaced ones can also be used.The supporting roller set 8 of this device is mainly used to support and drive the rotation of the rolling roller 3. Preferably, the single-side supporting roller set 8 is composed of two supporting rollers arranged at intervals along the radial direction, and their axes are on the same horizontal plane. One side of the supporting roller set 8 is driven to rotate by the motor 2. Specifically, a driving wheel 23 can be sleeved on the output shaft of the motor 2 or the supporting speed reducer. Similarly, a driven wheel 21 is sleeved on the rotating shaft of the supporting roller. The driving wheel 23 and the two driven wheels 21 are connected into a whole by a belt 22, so that the output shaft of the motor 2 can transmit power to the driven wheel 21, thereby driving the supporting roller to rotate, and further driving the rolling roller 3 to rotate to achieve the purpose of paper winding and paper peeling.

[0034] Preferably, in the above device, the fixing frame 91 is of a Y-shaped structure. The fixing frame 91 includes a movable arm 911 and a body. One end of the movable arm 911 is hinged to the middle part of the body, and the included angle between the movable arm 911 and the body can be fixed. Auxiliary rollers 93 are hinged to the upper ends of both the movable arm 911 and the body, and the included angles between the auxiliary rollers 93 and the movable arm 911 and the body can be fixed. Those skilled in the art can understand that the fixing frame 91 of this device includes a movable arm 911 and a body. One end of the movable arm 911 is hinged and fixed to the middle part of the body, so that the whole fixing frame 91 is of a Y-shaped structure. Since auxiliary rollers 93 are hinged to the upper ends of both the movable arm 911 and the body, and the auxiliary rollers 93 need to be in direct contact with the rust-proof paper 11 during actual operation to ensure that the rust-proof paper 11 is in contact with the working surface of the rolling roller 3. Therefore, there are certain requirements for the angles of the auxiliary rollers 93. Thus, in this device, it is preferred that the included angles between the movable arm 911, the body and the corresponding auxiliary rollers 93 can be fixed to ensure that the contact surface of the auxiliary rollers 93 is always in good contact with the rust-proof paper 11. The structure of the body is not fixed and can be specifically made according to the actual on-site installation conditions. Since the length of the working surface of the rolling roller 3 is relatively long, the auxiliary rollers 93 can be of a cylindrical structure or a plurality of spaced ones.

[0035] Preferably, the above device further includes an adjusting cylinder 94. The cylinder body of the adjusting cylinder 94 is hinged to the middle part of the body, and the air rod of the cylinder is hinged to the middle part of the movable arm 911. Those skilled in the art can understand that in this device, it is only preferred that the adjusting rod 94 is a cylinder. Actually, the cylinder body of the cylinder is hinged to the middle part of the body, and the air rod of the cylinder is hinged to the middle part of the movable arm 911. By setting sensors, the included angle between the movable arm 911 and the frame 9 can be accurately adjusted to ensure that the contact surface of the auxiliary roller 93 is accurately in contact with the rust-proof paper 11 and ensure that the rust-proof paper 11 is in contact with the working surface of the rolling roller 3.

[0036] Preferably, the fixing bracket 91 in the above device is of a long strip structure. Those skilled in the art can understand that in this device, only the specific structure of the fixing bracket 91 is preferably a long strip, and it can be directly made of a steel plate with a certain strength. Since the working surface of the rolling roller 3 is relatively long, multiple strip-shaped steel plates can be arranged at intervals, and they are connected into one body by connecting rods. The lower ends of the fixing brackets 91 are all hinged to the support 14, and auxiliary rollers 93 are arranged at the upper ends. The connecting rod between the middle two fixing brackets 91 is hinged to the adjusting member 92.

[0037] Preferably, the auxiliary roller 93 in the above device includes a fixing member 934 with a trapezoidal structure, a connecting belt 932, and two cylindrical roller bodies 931 arranged at intervals. The two roller bodies 931 are connected by the connecting belt 932. The small end of the fixing member 934 is hinged to the upper end of the fixing bracket 91, and the included angle between the fixing member 934 and the fixing bracket 91 can be fixed. The roller bodies 931 are hinged to the two side ends of the large end of the fixing member 934. Those skilled in the art can understand that the components of the auxiliary roller 93 are preferably included in this device, specifically including a fixing member 934 with a trapezoidal structure, a connecting belt 932, and two cylindrical roller bodies 931 arranged at intervals. The two roller bodies 931 are connected by the connecting belt 932 to form a conveyor belt-like structure. The connecting belt 932 has a certain flexibility and can perfectly fit the arc of the working surface of the rolling roller 3 to ensure that the rust-proof paper 11 and the working surface of the rolling roller 3 are closely attached. When the small end of the fixing member 934 is respectively hinged to the upper end of the fixing bracket 91 and the fixing bracket 91 is of a Y-shaped structure, the small end of the fixing member 934 is respectively hinged to the upper end of the movable arm 911 and the main body, that is, the fixing member 934 arranged at the upper end of the movable arm 911 is rotationally connected to the movable arm 911, and the fixing member 934 arranged at the upper end of the frame body 9 is rotationally connected to the frame body 9. In order to prevent the fixing member 934 from rotating during actual work and causing the connecting belt 932 to separate from the rust-proof paper 11, it is preferably that when the fixing member 934 and the fixing bracket 91 are of a Y-shaped structure, the included angle between the fixing member 934 and the movable arm 911, and the fixing member 934 and the main body can be fixed, that is, when adjusted to the appropriate position, the fixing member 934 and the fixing bracket 91 are of a Y-shaped structure, the movable arm 911 and the fixing member 934, and the main body and the fixing member 934 can be locked. Preferably, the roller bodies 931 are hinged to the two side ends of the large end of the fixing member 934, which can reduce the size of the fixing member 934. It is preferably that the included angle between the fixing member 934 and the fixing bracket 91 can be adjusted by a locking member. The hinge shaft can be preferably set as a screw structure, and the pre-tightening of the fixing member 934 and the fixing bracket 91 is realized by screwing in a nut to fix the included angle between the fixing member 934 and the fixing bracket 91.

[0038] Preferably, the above device further includes a buffer elastic member 933 disposed at the hinge joint between the roller body 931 and the fixing member 934, such that the roller body 931 can reciprocate along the radial direction of the hinge axis on the fixing member 934. Those skilled in the art can understand that, in order to reduce the impact on the auxiliary roller 93 during the operation of the rolling mill 3, the buffer elastic member 933 is preferably disposed at the hinge joint between the fixing member 934 of the roller body 931. Meanwhile, under the elastic force of the buffer elastic member 933, the roller body 931 can reciprocate along the radial direction on the fixing member 934, and thus the impact of the roller body 931 on the rolling mill 3 is buffered through the elastic deformation of the buffer elastic member 933.

[0039] Preferably, the above device further includes a pressing block 6 and a sliding trolley. The pressing block 6 is disposed at the paper outlet of the paper feeder 5. The lower end surface of the pressing block 6 is horizontally arranged and can be coplanar with the upper end surface of the connecting belt 932 of the movable arm 911. The sliding trolley can reciprocate above the rib plate 51 at the outlet of the paper feeder 5, and the pressing block 6 is fixed on the sliding trolley. Those skilled in the art can understand that, at present, in order to improve the operation efficiency, the existing paper feeder 5 is used to wrap the rust-proof paper 11. However, since the rust-proof paper 11 in the paper feeder 5 is in the form of rolls, it is easy to cause the end of the rust-proof paper 11 not to directly contact the surface of the rolling mill 3. Therefore, the pressing block 6 for feeding the rolled paper is preferably disposed at the paper outlet of the paper feeder 5. Under the action of the pressing block 6, the end of the rust-proof paper 11 is ensured to be a flat structure and directly contact the rust-proof oil coated on the working surface of the rolling mill 3, so as to achieve the purpose of quickly wrapping the rust-proof paper 11 on the working surface of the rolling mill 3. Since the rust-proof paper 11 has a certain width, in order to ensure the flatness of the end of the rust-proof paper 11, the width of the pressing block 6 should be greater than or equal to the width of the rust-proof paper 11. In order to reduce the weight of the device, the pressing block 6 is preferably disposed on the sliding trolley, and the sliding trolley can reciprocate above the rib plate 51 at the outlet of the paper feeder 5. A belt or chain conveying method can be adopted to ensure that the sliding trolley is on the rib plate 51 at the outlet of the paper feeder 5, and the reciprocating motion can be achieved by the forward and reverse rotation of the motor, so that the pressing block 6 quickly presses the end of the rust-proof paper 11 reciprocally, thereby achieving the purpose of ensuring the flatness of the end of the rust-proof paper 11.

[0040] Preferably, the above-mentioned device further includes a horizontally arranged moving cylinder 12, the cylinder body of the moving cylinder 12 is hinged to the base 1, and the rod body is hinged to the outside of the bracket 14. Those skilled in the art can understand that in order to ensure that the two ends of the rust-proof paper 11 coincide with the ends of the working surface of the rolling mill 3, that is, when the rust-proof paper 11 is wrapped around the working surface of the rolling mill 3, it will not shift left and right. This device preferably further includes a horizontally arranged moving cylinder 12. Since the bracket 14 and the base 1 are slidably connected, it is preferable to be provided with inverted V-shaped sliders at intervals in the length direction of the base 1, and a matching chute is provided at the lower end of the bracket 14. The sliding connection between the bracket 14 and the base 1 is realized by fitting the slider into the chute. Therefore, in this device, the cylinder body of the moving cylinder 12 is hinged to the base 1, and the rod body is hinged to the outside of the bracket 14. The base 1 is directly placed on the ground or a supporting surface. By extending or retracting the cylinder rod body, the left and right movement of the bracket 14 can be realized, so as to ensure the symmetry of the paper feeder 5 and ensure that the rust-proof paper 11 is wrapped around the working surface of the rolling mill 3.

[0041] Preferably, the above-mentioned device further includes a jacking cylinder 13, the jacking cylinder 13 is arranged at intervals below the supporting roller group 8, a groove is provided at the corresponding position of the base 1, the jacking cylinder 13 is vertically arranged in the groove, and the cylinder body is connected to the base 1, and the cylinder body is connected to the upper end of the bracket 14. A support column 4 with an inverted trapezoidal structure at the upper end is vertically arranged on the outside of the supporting roller group 8, and the lower end of the support column 4 is connected to the bracket 14. Those skilled in the art can understand that since the rolling mill 3 has a certain weight and pressing on the roller group 8 for a long time will cause the roller group 8 to age and deform, so this device preferably arranges a support column 4 with an inverted trapezoidal structure at the upper end vertically on the outside of the supporting roller group 8, and the lower end of the support column 4 is connected to the bracket 14 for supporting the rolling mill 3. When it is necessary to wrap or remove the rust-proof paper 11, the roller group 8 on both sides of the bracket 14 is jacked up by the jacking cylinder 13, and it can directly contact and support the two ends of the rolling mill 3 under the action of the jacking cylinder 13.

Claims

1. Anti-rust oil coating device for the working surface of a rolling mill roll, characterized in that it includes: a bracket (14), with a base (1) slidably connected to the lower end of the bracket (14). There are two support roller groups (8) at both ends of the base (1), and one side of the support roller group (8) is driven by a motor (2); a paper feeder (5), the paper feeder (5) is arranged on the bracket (14) and is located outside the axis of the support roller group (8). The paper outlet of the paper feeder (5) faces the middle of the connection line of the two support roller groups (8); an oil coating member (7), the oil coating member (7) includes a support rod (72) and a brush (71). One end of the support rod (72) is connected to the brush (71), and the other end is connected to the outer shell of the paper feeder (5); Paper pressing device (9), the paper pressing device (9) includes a fixing frame (91), an adjusting member (92) and an auxiliary roller (93), one end of the fixing frame (91) is hinged to the bracket (14), the other end is hinged to the auxiliary roller (93), and the included angle between the auxiliary roller (93) and the fixing frame (91) can be fixed. One end of the adjusting member (92) is hinged to the bracket (14), and the other end is hinged to the middle of the fixing frame (91); the fixing frame (91) is a Y-shaped structure, the fixing frame (91) includes a movable arm (911) and a body, one end of the movable arm (911) is hinged to the middle of the body, and the included angle between the movable arm (911) and the body can be fixed. Auxiliary rollers (93) are hinged to the upper ends of the movable arm (911) and the body, and the included angles between the auxiliary rollers (93) and the movable arm (911), the body can be fixed; it also includes an adjusting cylinder (94), the cylinder body of the adjusting cylinder (94) is hinged to the middle of the body, and the air rod of the cylinder is hinged to the middle of the movable arm (911); the auxiliary roller (93) includes a fixing member (934) with a trapezoidal structure, a connecting belt (932) and two cylindrical roller bodies (931) arranged at intervals. The two roller bodies (931) are connected by the connecting belt (932). The small end of the fixing member (934) is hinged to the upper end of the fixing frame (91), and the included angle between the fixing member (934) and the fixing frame (9) can be fixed. The roller body (931) is hinged to the two side ends of the large end of the fixing member (934); it also includes a buffer elastic member (933), and the buffer elastic member (933) is arranged at the hinge joint between the roller body (931) and the fixing member (934), so that the roller body (931) can reciprocate along the radial direction of the hinge axis on the fixing member (934); it also includes a pressing block (6) and a sliding trolley. The pressing block (6) is arranged at the paper outlet of the paper feeder (5). The lower end surface of the pressing block (6) is horizontally arranged and can be coplanar with the upper end surface of the connecting belt (932) of the movable arm (911). The sliding trolley can reciprocate above the rib plate (51) at the outlet of the paper feeder (5), and the pressing block (6) is fixed on the sliding trolley; it also includes a lifting cylinder (13), the lifting cylinder (13) is arranged at intervals below the supporting roller group (8), a groove is arranged at the corresponding position of the base (1), the lifting cylinder (13) is vertically arranged in the groove, and the cylinder body is connected to the base (1), the cylinder body is connected to the upper end of the bracket (14). A support column (4) with an inverted trapezoidal structure at the upper end is vertically arranged on the outside of the supporting roller group (8), and the lower end of the support column (4) is connected to the bracket (14).

2. The anti-rust device for coating the working surface of the roll as described in claim 1, characterized in that: it further includes a horizontally arranged moving cylinder (12), the cylinder body of the moving cylinder (12) is hinged to the base (1), and the rod body is hinged to the outside of the bracket (14).

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