Steel belt unwinding device with distance measurement and speed regulation functions

Abstract

The invention relates to the technical field of steel belt unwinding equipment, and discloses a steel belt unwinding device with distance measurement and speed regulation functions, the steel belt unwinding device comprises an unwinding machine and a steel coil, the unwinding machine is composed of a machine body, an abutting roller and a rack, the steel coil is arranged on the abutting roller, an anti-stretching mechanism is arranged on the side wall of the machine body, and the anti-stretching mechanism is used for preventing the outer diameter of the steel coil from being increased when the steel coil is unwound; an anti-deviation mechanism is arranged at the bottom of the anti-stretching mechanism, a steel belt penetrates through the anti-deviation mechanism to unwind a steel coil, the anti-deviation mechanism is used for preventing the steel coil from deviating when the steel coil is unwound, the steel coil can be limited through the anti-stretching mechanism, the outer diameter of the steel coil is prevented from being increased in the unwinding process, the outer diameter of the steel coil can be effectively prevented from being increased, and the service life of the steel coil is prolonged. In the prior art, parts of the unreeling machine need to bear larger load, so that the equipment is excessively worn, and the maintenance cost is increased.

Description

Technical Field

[0001] The invention relates to the technical field of steel strip unwinding equipment, and in particular to a steel strip unwinding device with distance measurement and speed regulation functions. Background Art

[0002] At the initial step of the forming production line, an automatic unwinding device is usually used for unwinding. The steel strip is then transported to different workstations for processing through a conveyor device.

[0003] As the unwinding process proceeds, the outer layer of the steel coil gradually unfolds, while the inner layer continues to remain tight. The influence of tension will cause the curled part of the outer layer of the steel coil to gradually unfold, resulting in an increase in the diameter of the steel coil. As the outer diameter of the steel coil increases, the shaft, rollers and other components of the unwinder need to bear a greater load, which will cause excessive wear of the equipment and increase maintenance costs. When the outer diameter of the steel coil increases, it is also easy to cause uneven unwinding of the steel strip, thereby affecting operations in subsequent processing. Existing unwinders usually automatically adjust the unwinding speed and tension of the steel strip through a pneumatic tension adjustment device. The pneumatic tension adjustment device relies on a tension sensor to monitor the tension of the steel strip in real time. The sensor is installed in a moving part and is easily damaged by mechanical shock, wear, misalignment or drift, and cannot provide accurate tension data, resulting in the control system being unable to make correct adjustments.

[0004] To this end, the present invention provides a steel strip unwinding device with distance measurement and speed regulation functions. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The present invention provides a steel strip unwinding device with distance measurement and speed regulation function, comprising an unwinding machine and a steel coil, the unwinding machine consisting of a machine body, a clamping roller and a frame, a driving source is arranged in the machine body, and a clamping roller is fixedly connected to the output end of the driving source, a plurality of clamping plates are fixedly connected to the outer wall of the clamping roller, a frame is fixedly connected to the bottom of the machine body, the steel coil is arranged on the clamping plate, an anti-stretching mechanism is arranged on the side wall of the machine body, the anti-stretching mechanism is used to prevent the outer diameter of the steel coil from increasing when the steel coil is unrolled, an anti-deviating mechanism is arranged at the bottom of the anti-stretching mechanism, the steel strip passes through the anti-deviating mechanism and realizes the unwinding of the steel coil, the anti-deviating mechanism is used to prevent the steel coil from deviating when it is unrolled, an ultrasonic distance measuring sensor is arranged on the inner bottom surface of the frame, and the ultrasonic distance measuring sensor is arranged at the bottom of the unrolled steel strip, the anti-stretching mechanism includes a The motor of the side wall, the output end of the motor is fixedly connected with a bidirectional screw, the side wall of the body is fixedly connected with a fixed plate, the bidirectional screw is rotatably connected to the fixed plate, two movable plates are threadedly connected to the bidirectional screw, and limiting plates are arranged between the opposite surfaces of the two movable plates, and elastic components are arranged between the two limiting plates and adjacent movable plates. The limiting plates are arc-shaped plates, and the side walls of the limiting plates are arranged in close contact with the side walls of the steel coil. The steel coil can be limited by the anti-stretching mechanism to prevent the outer diameter of the steel coil from increasing during the unwinding process. The increase in the outer diameter of the steel coil can be effectively avoided, and the components of the unwinding machine need to bear a larger load, resulting in excessive wear of the equipment and increased maintenance costs. The anti-deviation mechanism can limit the unwinding of the steel coil to prevent the steel belt from deviating and ensure that the steel belt always remains on the correct track.

[0007] Preferably, the elastic component includes a hollow block fixedly connected to the side wall of the movable plate, a movable block is slidably connected inside the hollow block, a spring is arranged in the extrusion cavity of the movable block and the hollow block, and the movable block is fixedly connected to the side wall of the limit plate, so that the elastic component is used to reduce the impact and influence caused by the increase in the outer diameter of the steel coil.

[0008] Preferably, the anti-deviation mechanism includes two mounting grooves provided on the movable plate, the two mounting grooves are relatively distributed, and connecting blocks are slidably connected in the two mounting grooves, and a rotating rod is rotatably arranged between the two connecting blocks, and the rotating rod passes through the connecting block and is fixedly connected to the limiting block. The side wall of the machine body is provided with an arc groove, the limit block is slidably connected to the arc groove, a connecting plate is fixedly connected to the rotating rod, and the bottom of the connecting plate is fixedly connected to a limiting frame, a limiting assembly is arranged in the limit frame, and the side wall of the machine body is provided with a lubrication mechanism, and the lubrication mechanism is used to inject lubricant into the arc groove. When the movable plate moves from the outside to the inside of the machine body, it is also the process of the steel coil changing from more to less. The limit frame can descend and rotate with the movement of the movable plate, and the steel strip passes through the limit frame. The limit frame can guide the steel strip discharging position to descend, so that the steel strip discharging position is maintained near the original height, reducing the impact of changes in the steel strip discharging position.

[0009] Preferably, the limiting assembly includes a plurality of grooves provided on the inner wall of the limiting frame, and rollers are rotatably arranged in the grooves, and the rollers can guide and limit the steel belt.

[0010] Preferably, a rotating plate is rotatably provided on one side of the top of the frame, and a locking structure is provided on the side wall of the rotating plate, and the locking structure is used to lock with the other side of the top of the frame, and the top surface of the rotating plate is fixedly connected with two vertical plates, and the side walls of the vertical plate and the side walls of the machine body are provided with other slide grooves, and the front and rear side walls of the movable plate are fixedly connected with connecting rods, and the two connecting rods are slidably connected to adjacent slide grooves respectively, and the locking structure can be a positioning pin and a positioning hole, and the top of the rotating plate is slidably connected with the positioning pin, and the top of the frame is provided with a positioning hole, when the rotating plate is perpendicular to the frame, the positioning pin is installed, and the rotating plate can be locked and positioned. At this time, the connecting rod conflicts with the slide groove of the side wall of the vertical plate, which can limit the movable plate, which is beneficial to the stability of the movable plate when moving. The locking structure is disassembled and the rotating plate is rotated, so that the steel coil can be placed on the clamping roller.

[0011] Preferably, the lubricating mechanism includes a mounting plate fixedly connected to the side wall of the machine body, the bottom surface of the mounting plate is fixedly connected to a box body, a piston plate is slidably arranged inside the box body, a through hole is provided in the side wall of the box body, a tension spring is fixedly connected between the movable plate and the piston plate, the tension spring passes through the through hole, the interior of the box body away from the tension spring is filled with lubricant, the bottom surface of the box body is fixedly connected to a drain pipe, the drain pipe is a hose, one end of the drain pipe is fixedly connected to the bottom surface of the box body, the other end is buried in the side wall of the machine body, and the pipe mouth of the other end extends into the arc groove, an air inlet is provided in the side wall of the box body, and a filter screen is fixedly connected to the air inlet, when the movable plate moves, the movable plate drives the piston plate to move through the tension spring, and when the piston plate moves to the left side of the drain pipe, the lubricant flows into the drain pipe and then into the arc groove, the lubricant can lubricate the arc groove, and reduce the wear of the limit block and the arc groove.

[0012] Preferably, four sinking grooves are provided, and the four sinking grooves are respectively located on the inner walls of the limiting frame.

[0013] The beneficial effects of the present invention are as follows: a steel strip unwinding device with a distance measurement and speed regulation function described in the present invention can limit the steel coil through an anti-stretching mechanism to prevent the outer diameter of the steel coil from increasing during the unwinding process, and can effectively prevent the outer diameter of the steel coil from increasing. The unwinding machine components need to bear a larger load, resulting in excessive wear of the equipment and increased maintenance costs. The ultrasonic distance measuring sensor at the bottom detects the distance between the steel strip and itself in real time, and transmits the data to the control system of the unwinder. The unwinding speed of the steel strip can be adjusted in real time according to the distance, and the operating power of the unwinder can be adjusted in time to avoid excessive tension fluctuations in the steel strip during the outer diameter change process, thereby preventing insufficient or excessive tension from affecting product quality.

[0014] The steel strip unwinding device with distance measurement and speed regulation function described in the present invention can limit the unwinding of the steel strip through the anti-deviation mechanism, thereby avoiding the deviation of the steel strip and ensuring that the steel strip always remains on the correct track.

[0015] The steel strip unwinding device with distance measurement and speed regulation function described in the present invention can drive the rotating rod and the limit frame to rotate during the movement of the movable plate through the arc groove, so that the limit frame can better limit the steel strip.

[0016] The steel strip unwinding device with distance measurement and speed regulation function described in the present invention, when the movable plate moves, the movable plate drives the piston plate to move through the tension spring. When the piston plate moves to the left side of the drain pipe, the lubricant flows into the drain pipe and into the arc groove. The lubricant can lubricate the arc groove and reduce the wear of the limit block and the arc groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 is a top view of the present invention; Figure 4 It is a structural schematic diagram of the limit frame of the present invention; Figure 5 It is a structural schematic diagram of the unwinding machine in working state 1 of the present invention; Figure 6 It is a structural schematic diagram of the unwinding machine in the present invention in working state 2; Figure 7 It is a structural schematic diagram of the lubrication mechanism in the present invention.

[0018] Description of reference numerals: 1. Unwinder; 11. Machine body; 12. Clamping roller; 13. Frame; 131. Rotating plate; 132. Locking structure; 2. Steel coil; 3. Anti-stretching mechanism; 31. Motor; 32. Bidirectional screw; 33. Fixed plate; 34. Movable plate; 35. Limiting plate; 36. Hollow block; 37. Movable block; 38. Slide; 4. Anti-deviating mechanism; 41. Mounting groove; 42. Connecting block; 43. Rotating rod; 44. Arc groove; 45. Connecting plate; 46. Limiting frame; 47. Limiting block; 5. Ultrasonic ranging sensor; 6. Vertical plate; 7. Connecting rod; 8. Limiting assembly; 81. Sink; 82. Roller; 9. Lubricating mechanism; 91. Mounting plate; 92. Box; 93. Tension spring; 94. Piston plate; 95. Through hole; 96. Drain pipe. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0020] Example

[0021] like Figures 1 to 7 As shown, a steel strip unwinding device with distance measurement and speed regulation function according to an embodiment of the present invention is provided. Figure 1 , Figure 3 , including an unwinding machine 1 and a steel coil 2, the unwinding machine 1 is composed of a machine body 11, a clamping roller 12, and a frame 13. A driving source is arranged in the machine body 11, and a clamping roller 12 is fixedly connected to the output end of the driving source, and a plurality of clamping plates are fixedly connected to the outer wall of the clamping roller 12. The bottom of the machine body 11 is fixedly connected to the frame 13, and the steel coil 2 is arranged on the clamping plate. An anti-stretching mechanism 3 is arranged on the side wall of the machine body 11, and the anti-stretching mechanism 3 is used to prevent the outer diameter of the steel coil 2 from increasing when unwinding. An anti-deviating mechanism 4 is arranged at the bottom of the anti-stretching mechanism 3. The steel strip passes through the anti-deviating mechanism 4 and realizes the unwinding of the steel coil 2. The anti-deviating mechanism 4 is used to prevent the steel coil 2 from deviating when unwinding. An ultrasonic distance measuring sensor 5 is arranged on the inner bottom surface of the frame 13, and the ultrasonic distance measuring sensor 5 is arranged at the bottom of the unwinding steel strip.

[0022] Specifically, the steel coil 2 can be limited by the anti-stretching mechanism 3 to prevent the outer diameter of the steel coil 2 from increasing during the unwinding process, which can effectively prevent the outer diameter of the steel coil 2 from increasing. The components of the unwinding machine 1 need to bear a larger load, resulting in excessive wear of the equipment and increased maintenance costs. The anti-deviation mechanism 4 can limit the unwinding of the steel coil 2 to prevent the steel strip from deviating and ensure that the steel strip always remains on the correct track. A control system is provided in the machine body 11, which includes a diameter calculation module, a drive motor connected to the clamping roller 12, a PLC and a display. In the process of the unwinding machine 1 unwinding the steel strip, the ultrasonic ranging sensor 5 at the bottom detects the distance between the steel strip and itself in real time, and transmits the data to the control system of the unwinding machine 1. The control system can calculate the actual diameter of the current steel coil 2 in real time, adjust the unwinding speed of the steel strip in real time according to the distance, and adjust the operating power of the drive motor in time to avoid excessive tension fluctuations in the steel strip during the change of the outer diameter, and prevent the influence of insufficient or excessive tension on product quality.

[0023] Please pay attention to Figure 1 , Figure 3 , Figure 5The anti-stretching mechanism 3 includes a motor 31 arranged on the side wall of the body 11, a bidirectional screw 32 is fixedly connected to the output end of the motor 31, a fixed plate 33 is fixedly connected to the side wall of the body 11, the bidirectional screw 32 is rotatably connected to the fixed plate 33, two movable plates 34 are threadedly connected to the bidirectional screw 32, and a limit plate 35 is arranged between the opposite surfaces of the two movable plates 34, and an elastic component is arranged between the two limit plates 35 and the adjacent movable plates 34, the limit plate 35 is an arc plate, and the side wall of the limit plate 35 is arranged in contact with the side wall of the steel coil 2, the elastic component includes a hollow block 36 fixedly connected to the side wall of the movable plate 34, a movable block 37 is slidably connected in the hollow block 36, a spring is arranged in the extrusion cavity of the movable block 37 and the hollow block 36, and the movable block 37 is fixed to the side wall of the limit plate 35.

[0024] Specifically, the driving motor 31 drives the bidirectional screw 32 to rotate, thereby driving the two movable plates 34 to approach each other, and then causing the two limit plates 35 to contact the outer wall of the steel coil 2. When the outer diameter of the steel coil 2 increases, it will be blocked and resisted by the limit plates 35, which can reduce the influence of the tension fluctuation of the steel coil 2 caused by the increase in the outer diameter of the steel coil 2, and reduce the impact and influence caused by the increase in the outer diameter of the steel coil 2 through the elastic component.

[0025] Please pay attention to Figure 2 , Figure 4 , Figure 5 , Figure 6 The anti-deviation mechanism 4 includes two mounting grooves 41 provided on the movable plate 34, the two mounting grooves 41 are relatively distributed, and a connecting block 42 is slidably connected in the mounting groove 41, a rotating rod 43 is rotatably arranged between the two connecting blocks 42, the rotating rod 43 passes through the connecting block 42 and is fixedly connected to a limiting block 47, an arc groove 44 is provided on the side wall of the body 11, the limiting block 47 is slidably connected to the arc groove 44, a connecting plate 45 is fixedly connected to the rotating rod 43, and a limiting frame 46 is fixedly connected to the bottom of the connecting plate 45, a limiting assembly 8 is arranged in the limiting frame 46, and the limiting assembly 8 includes a sinking groove 81 provided on the inner wall of the limiting frame 46, a roller 82 is rotatably arranged in the sinking groove 81, four sinking grooves 81 are arranged, and the four sinking grooves 81 are respectively located on each inner wall of the limiting frame 46.

[0026] Specifically, when the movable plate 34 moves, the connecting block 42 and the rotating rod 43 move accordingly. Since the limit block 47 is arranged in the arc groove 44, the limit block 47 will gradually descend and slide in the arc groove 44, and can move and rotate with the rotating rod 43 and the connecting plate 45 and the limit frame 46 fixed to the rotating rod 43. Since the arc groove 44 is directed downward, the connecting block 42 will descend in the installation groove 41 at this time, that is, the limit frame 46 will move from Figure 5 Vertical state steering Figure 6In the rotating state, during the unwinding process of the steel coil 2, as the steel coil 2 is unwound, the initial position of the steel strip will gradually rise, and the discharge position of the steel strip will change, which may easily cause the trajectory of the steel strip to shift. The steel strip deviates from the ideal trajectory during the unwinding process, which may easily affect the operation in the subsequent processing process. When the movable plate 34 moves from the outside to the inside of the machine body 11, it is also the process of the steel coil 2 changing from more to less. The limit frame 46 can descend and rotate with the movement of the movable plate 34, and the steel strip passes through the limit frame 46. The limit frame 46 can guide the discharge position of the steel strip to descend, so that the discharge position of the steel strip is maintained near the original height, reducing the impact of the change in the discharge position of the steel strip.

[0027] Please pay attention to Figure 1 , Figure 3 A rotating plate 131 is rotatably provided on one side of the top of the frame 13, and a locking structure 132 is provided on the side wall of the rotating plate 131. The locking structure 132 is used to lock with the other side of the top of the frame 13. Two vertical plates 6 are fixedly connected to the top surface of the rotating plate 131. The side walls of the vertical plates 6 and the side walls of the body 11 are both provided with additional sliding grooves 38. The front and rear side walls of the movable plate 34 are both fixedly connected with connecting rods 7. The two connecting rods 7 are slidably connected to adjacent sliding grooves 38 respectively.

[0028] Specifically, the locking structure 132 can be a positioning pin and a positioning socket. The top of the rotating plate 131 is slidably connected with the positioning pin, and the top of the frame 13 is provided with a positioning socket. When the rotating plate 131 is perpendicular to the frame 13, the positioning pin is installed to lock and position the rotating plate 131. At this time, the connecting rod 7 is in conflict with the sliding groove 38 on the side wall of the vertical plate 6, which can limit the movable plate 34 and facilitate the stability of the movable plate 34 when moving. The locking structure 132 is removed, and the rotating plate 131 is rotated, and the steel coil 2 can be placed on the clamping roller 12.

[0029] Please pay attention to Figure 1 , Figure 2 , Figure 7 A lubricating mechanism 9 is provided on the side wall of the body 11, and the lubricating mechanism 9 is used to inject lubricant into the arc groove 44. The lubricating mechanism 9 includes a mounting plate 91 fixedly connected to the side wall of the body 11, and a box 92 is fixedly connected to the bottom surface of the mounting plate 91. A piston plate 94 is slidably arranged inside the box 92. A through hole 95 is provided on the side wall of the box 92. The interior of the box 92 away from the tension spring 93 is filled with lubricant. A tension spring 93 is fixedly connected between the movable plate 34 and the piston plate 94. The tension spring 93 passes through the through hole 95. A drain pipe 96 is fixedly connected to the bottom surface of the box 92. The drain pipe 96 is a hose. One end of the drain pipe 96 is fixedly connected to the bottom surface of the box 92, and the other end is buried in the side wall of the body 11, and the pipe mouth of the other end extends into the arc groove 44. An air inlet is provided on the side wall of the box 92, and a filter screen is fixedly connected to the air inlet.

[0030] Specifically, when the movable plate 34 moves, the movable plate 34 drives the piston plate 94 to move through the tension spring 93. When the piston plate 94 moves to the left side of the drain pipe 96, the lubricant flows into the drain pipe 96 and flows into the arc groove 44. The lubricant can lubricate the arc groove 44 and reduce the wear of the limit block 47 and the arc groove 44.

[0031] How it works When the steel coil 2 needs to be installed, the locking structure 132 is removed, and the rotating plate 131 is rotated, and the steel coil 2 is placed on the clamping roller 12, and then the reverse operation is performed. The locking structure 132 and the rotating plate 131 are reset, and the steel strip is guided through the limit frame 46, and the unwinding machine 1 is driven to make the clamping roller 12 drive the steel coil 2 to rotate for unwinding, and the driving motor 31 drives the bidirectional lead screw 32 to rotate, thereby driving the two movable plates 34 to approach each other, and then the two limit plates 35 are against the outer wall of the steel coil 2. When the outer diameter of the steel coil 2 increases, it will be blocked and resisted by the limit plates 35, which can reduce the influence of the tension fluctuation of the steel coil 2 caused by the increase in the outer diameter of the steel coil 2. The spring in the elastic component is used to reduce the impact and influence caused by the increase in the outer diameter of the steel coil 2. When the movable plate 34 moves, the connecting block 42 and the rotating rod 43 move accordingly. Due to the setting of the limit block 47 In the arc groove 44, the limit block 47 will gradually descend and slide in the arc groove 44, and can move and rotate with the rotating rod 43 and the connecting plate 45 and the limit frame 46 fixed to the rotating rod 43. The limit frame 46 can descend and rotate with the movement of the movable plate 34, and the steel belt passes through the limit frame 46. The limit frame 46 can guide the steel belt discharge position to descend, so that the steel belt discharge position is maintained near the original height, reducing the impact of the change in the steel belt discharge position, and when the movable plate 34 moves, the movable plate 34 drives the piston plate 94 to move through the tension spring 93. When the piston plate 94 moves to the left side of the drain pipe 96, the lubricant flows into the drain pipe 96 and flows into the arc groove 44. The lubricant can lubricate the arc groove 44, reduce the wear of the limit block 47 and the arc groove 44, and is conducive to the long-term use of the limit block 47.

[0032] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A steel strip unwinding device with distance measurement and speed regulation function, characterized in that: The invention comprises an unwinding machine (1) and a steel coil (2), wherein the unwinding machine (1) is composed of a machine body (11), a clamping roller (12), and a frame (13); a driving source is arranged in the machine body (11), and the output end of the driving source is fixedly connected to the clamping roller (12); the outer wall of the clamping roller (12) is fixedly connected to a plurality of clamping plates; the bottom of the machine body (11) is fixedly connected to the frame (13); the steel coil (2) is arranged on the clamping plate; and the side wall of the machine body (11) is provided with an anti-expansion mechanism ( 3), the anti-stretching mechanism (3) is used to prevent the outer diameter of the steel coil (2) from increasing when it is unwinding, an anti-deviating mechanism (4) is arranged at the bottom of the anti-stretching mechanism (3), the steel strip passes through the anti-deviating mechanism (4) and the steel coil (2) is unwinded, the anti-deviating mechanism (4) is used to prevent the steel coil (2) from deviating when it is unwinding, an ultrasonic distance measuring sensor (5) is arranged on the inner bottom surface of the frame (13), and the ultrasonic distance measuring sensor (5) is arranged at the bottom of the unwinding steel strip; The anti-expansion mechanism (3) comprises a motor (31) arranged on the side wall of the machine body (11); a bidirectional lead screw (32) is fixedly connected to the output end of the motor (31); a fixed plate (33) is fixedly connected to the side wall of the machine body (11); the bidirectional lead screw (32) is rotatably connected to the fixed plate (33); two movable plates (34) are threadedly connected to the bidirectional lead screw (32); a limit plate (35) is arranged between the opposite surfaces of the two movable plates (34); an elastic component is arranged between the two limit plates (35) and the adjacent movable plates (34); the limit plate (35) is an arc-shaped plate, and the side wall of the limit plate (35) is arranged to fit the side wall of the steel coil (2).

2. The steel strip unwinding device with distance measurement and speed regulation function according to claim 1 is characterized in that: The elastic component comprises a hollow block (36) fixedly connected to the side wall of the movable plate (34), a movable block (37) being slidably connected inside the hollow block (36), a spring being arranged in the extrusion cavity between the movable block (37) and the hollow block (36), and the movable block (37) being fixedly connected to the side wall of the limiting plate (35).

3. The steel strip unwinding device with distance measurement and speed regulation function according to claim 1 is characterized in that: The anti-deviating mechanism (4) comprises two mounting grooves (41) provided on the movable plate (34), the two mounting grooves (41) being arranged opposite to each other, connecting blocks (42) being slidably connected in the two mounting grooves (41), a rotating rod (43) being rotatably arranged between the two connecting blocks (42), the rotating rod (43) penetrating the connecting blocks (42) and being fixedly connected to a limiting block (47), an arc groove (44) being provided on the side wall of the machine body (11), the limiting block (47) being slidably connected to the arc groove (44), a connecting plate (45) being fixedly connected to the bottom of the connecting plate (45), a limiting assembly (8) being arranged in the limiting frame (46), and a lubricating mechanism (9) being provided on the side wall of the machine body (11), the lubricating mechanism (9) being used for injecting lubricant into the arc groove (44).

4. The steel strip unwinding device with distance measurement and speed regulation function according to claim 3 is characterized in that: The limiting assembly (8) comprises a plurality of sink grooves (81) formed on the inner wall of the limiting frame (46), and a roller (82) is rotatably arranged in the sink grooves (81).

5. The steel strip unwinding device with distance measurement and speed regulation function according to claim 1 is characterized in that: A rotating plate (131) is rotatably provided on one side of the top of the frame (13), and a locking structure (132) is provided on the side wall of the rotating plate (131), and the locking structure (132) is used to lock with the other side of the top of the frame (13). Two vertical plates (6) are fixedly connected to the top surface of the rotating plate (131), and the side walls of the vertical plates (6) and the side walls of the body (11) are both provided with additional sliding grooves (38). The front and rear side walls of the movable plate (34) are both fixedly connected with connecting rods (7), and the two connecting rods (7) are respectively slidably connected to adjacent sliding grooves (38).

6. The steel strip unwinding device with distance measurement and speed regulation function according to claim 3 is characterized in that: The lubricating mechanism (9) comprises a mounting plate (91) fixedly connected to a side wall of a machine body (11); a box body (92) is fixedly connected to the bottom surface of the mounting plate (91); a piston plate (94) is slidably arranged inside the box body (92); a through hole (95) is formed in the side wall of the box body (92); a tension spring (93) is fixedly connected between the movable plate (34) and the piston plate (94); the tension spring (93) passes through the through hole (95); the box body ( The interior of the casing (92) away from the tension spring (93) is filled with lubricant, and the bottom surface of the casing (92) is fixedly connected to a drain pipe (96), and the drain pipe (96) is a hose. One end of the drain pipe (96) is fixedly connected to the bottom surface of the casing (92), and the other end is buried in the side wall of the machine body (11), and the pipe mouth of the other end extends into the arc groove (44). The side wall of the casing (92) is provided with an air inlet, and a filter screen is fixedly connected to the air inlet.

7. The steel strip unwinding device with distance measurement and speed regulation function according to claim 4 is characterized in that: Four sink grooves (81) are provided, and the four sink grooves (81) are respectively located on the inner walls of the limiting frame (46).

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