Automatic coil feeding guide device for thin-walled steel raw material cutting production line

Abstract

The invention discloses an automatic coil feeding and guiding device for a thin-wall profile steel raw material cutting production line in the technical field of thin-wall profile steel production, which comprises an automatic coil feeding machine for feeding and further comprises a guiding device arranged on the side edge of the automatic coil feeding machine and used for guiding a steel belt; the guiding device comprises a supporting plate, the top of the supporting plate is arranged to be in an arc shape, a first sliding block is elastically connected to the supporting plate in a sliding mode, the first sliding block is rotationally connected with a pressing roller, the pressing roller is used for restraining the steel belt in the vertical direction, and the steel belt can drive the pressing roller to rotate when moving on the supporting plate. A mounting plate is fixedly connected to the end, away from the automatic roll feeding machine, of the supporting plate, two symmetrically-arranged second sliding blocks are elastically and slidably connected to the mounting plate, the second sliding blocks are rotationally connected with rotating rollers, and the rotating rollers can play a role in restraining and guiding the steel belt; according to the invention, a new steel belt can be better conveyed to a position connected with an old steel belt.

Description

Technical Field

[0001] The invention relates to the technical field of thin-walled steel production, in particular to an automatic coil feeding guide device for a thin-walled steel raw material cutting production line. Background Art

[0002] Thin-walled steel structure is a structure made of steel strips with various cross-sections that are cold-bent. During the production process, after a roll of steel strip is used up, it is necessary to replace the steel strip to continue production, and the head and tail of the old and new steel strips need to be connected. On the one hand, it can avoid re-debugging the equipment, and on the other hand, it can reduce the waste of surplus materials. When replacing the steel strip traditionally, the steel strip roll needs to be placed on the automatic coil feeder, and then the staff will cut off the cable ties or ropes that bind the steel strip roll, and then pull one end of the steel strip roll to the position where the old steel strip is connected. Since the thickness of the steel strip is usually between 1.5 mm and 6 mm, the steel strip is thin and has a certain elasticity. When the staff cuts the cable ties or ropes that bind the steel strip roll, the end of the steel strip will bounce up under the action of internal stress, which can easily cause harm to the staff. Summary of the invention

[0003] The object of the present invention is to provide an automatic coil feeding guide device for a thin-walled steel raw material cutting production line to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An automatic coil feeding guide device for a thin-walled steel raw material cutting production line includes an automatic coil feeding machine for feeding materials, and also includes a guiding device, which is arranged on the side of the automatic coil feeding machine and is used to guide the steel strip; the guiding device includes a support plate, the top of the support plate is arranged in an arc shape, a first slider is elastically slidably connected to the support plate, the first slider is rotatably connected to a pressure roller, the pressure roller is used to constrain the steel strip in the up and down directions, and the steel strip can drive the pressure roller to rotate when it moves on the support plate; the support plate is fixedly connected to a mounting plate at one end away from the automatic coil feeding machine, two second sliders arranged symmetrically are elastically slidably connected to the mounting plate, the second slider is rotatably connected to a rotating roller, The rotating roller can restrain and guide the steel strip; the feeding mechanism is arranged between the automatic coil feeding machine and the guiding device and is used to convey the end of the steel strip into the guiding device; the feeding mechanism includes a support frame, on which two symmetrically arranged third sliders are slidably mounted, and the two third sliders are rotatably mounted with conveying rollers; the rotating shafts of the two conveying rollers are fixedly connected with first gears, and the two first gears can mesh; the rotating shaft of one of the conveying rollers is transmission-connected with a motor; when the motor is working, it can drive the conveying roller to rotate and convey the steel strip; the support frame is also provided with a driving component, and the driving component is used to drive the two third sliders to move toward each other.

[0005] As a further solution of the present invention, the driving assembly includes two connecting rods, one end of the two connecting rods is hinged to two third sliders respectively, and the other end is hinged to a fixed seat, a cylinder is fixedly connected to the fixed seat, and the cylinder is fixedly mounted on the support frame.

[0006] As a further solution of the present invention, the feeding mechanism also includes a fixed plate, which is arranged on the outside of the support frame, and the support frame is rotatably connected to the fixed plate; an incomplete gear is fixedly connected to the rotating shaft of the support frame, and the incomplete gear is meshed with a second gear, and a first sprocket is fixedly connected to the rotating shaft of the second gear, and the first sprocket is connected to a second sprocket and a tensioning wheel through a first chain transmission; the second sprocket is fixedly mounted on the rotating shaft of one of the conveying rollers; and the tensioning wheel is mounted on the fixed plate.

[0007] As a further solution of the present invention, the outer ends of the pressure roller, the rotating roller and the conveying roller are all made of rubber material.

[0008] As a further solution of the present invention, the guiding device also includes two symmetrically arranged pressure plates, which are elastically slidably connected to the support plate; the pressure plates are arranged parallel to the support plate and have the same shape as the support plate, and the sides of the pressure plates are provided with driving parts for their movement.

[0009] As a further scheme of the present invention, the driving part includes a third gear, and the third gear is rotatably connected to the support plate; the third gear is meshed with a rack rod, and the rack rod is fixedly connected to the pressure plate; the rotating shaft of the third gear is elastically slidably connected to the first rotating shaft, the first rotating shaft is fixedly connected to the first bevel gear, the first bevel gear is meshed with the second bevel gear, and the rotating shaft of the second bevel gear is fixedly connected to the third sprocket, the third sprocket is connected to the fourth sprocket through the second chain transmission, and the fourth sprocket is fixedly installed on the rotating shaft of the pressure roller; the first rotating shaft is rotatably connected to the fourth slider, and the fourth slider is fixedly connected to the steel rope; the steel rope is fixedly connected to a sliding rod at one end away from the fourth slider, the sliding rod is slidably connected to the support plate, and a cam that can drive it to move is provided on the side of the sliding rod, and the cam can be driven to rotate synchronously when the roller rotates.

[0010] As a further solution of the present invention, a ball bearing is installed on the side wall of the pressure plate opposite to the support plate.

[0011] As a further solution of the present invention, the cam is connected to the rotating roller via a one-way bearing.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges a feeding mechanism and a guiding device. The feeding mechanism is arranged on the side of the automatic coil feeding machine. After the steel strip coil is placed on the automatic coil feeding machine, when the automatic coil feeding machine drives the steel strip coil to rotate, the end of the steel strip coil can automatically extend between the two conveying rollers. The two conveying rollers can clamp the end of the steel strip and drive the end of the steel strip to move to the guiding device through the drive of the motor. The guiding device can guide the end of the steel strip to move to a position connected with the old steel strip. During the process of replacing the steel strip coil, no staff participation is required, which can avoid harm to the staff. The guiding device can limit the steel strip, which can prevent the steel strip from bouncing up under stress, and can better prevent the steel strip from harming the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the guiding device of the present invention; Figure 3 for Figure 2 A partial enlarged view of the middle part; Figure 4 It is a schematic diagram of the structure of the feeding mechanism of the present invention; Figure 5 It is a partial structural schematic diagram of the present invention; Figure 6 It is a schematic diagram of the pressure plate and ball structure of the present invention.

[0014] The reference numerals in the accompanying drawings are annotated as follows: 1-automatic coil feeder; 2-guiding device; 3-support plate; 4-first slider; 5-pressure roller; 6-mounting plate; 7-second slider; 8-rotating roller; 9-feeding mechanism; 10-support frame; 11-third slider; 12-conveying roller; 13-first gear; 14-connecting rod; 15-fixed seat; 16-cylinder; 17-fixed plate; 18-incomplete gear; 19-second gear; 20-first sprocket; 21-first chain; 22-second sprocket; 23-tensioning wheel; 24-pressure plate; 25-third gear; 26-rack rod; 27-first rotating shaft; 28-first bevel gear; 29-second bevel gear; 30-third sprocket; 31-second chain; 32-fourth sprocket; 33-fourth slider; 34-steel rope; 35-slide rod; 36-cam; 37-ball; 38-one-way bearing. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 6 The present invention provides a technical solution: an automatic coil feeding guide device for a thin-walled steel raw material cutting production line, comprising an automatic coil feeding machine 1 for feeding, and also comprising a guiding device 2, which is arranged on the side of the automatic coil feeding machine 1 and is used to guide the steel strip; the guiding device 2 comprises a support plate 3, the top of the support plate 3 is arranged in an arc shape, a first slider 4 is elastically slidably connected to the support plate 3, the first slider 4 is rotatably connected to a pressure roller 5, the pressure roller 5 is used to constrain the steel strip in the up and down directions, and the steel strip can drive the pressure roller 5 to rotate when moving on the support plate 3; the support plate 3 is fixedly connected to a mounting plate 6 at one end away from the automatic coil feeding machine 1, two second sliders 7 symmetrically arranged are elastically slidably connected to the mounting plate 6, and the second slider 7 is rotatably connected to a rotating roller 8, The rotating roller 8 can restrain and guide the steel strip; the feeding mechanism 9 is arranged between the automatic coil feeding machine 1 and the guiding device 2 and is used to convey the end of the steel strip into the guiding device 2; the feeding mechanism 9 includes a support frame 10, on which two symmetrically arranged third sliders 11 are slidably mounted, and the two third sliders 11 are rotatably mounted with conveying rollers 12; the rotating shafts of the two conveying rollers 12 are fixedly connected with first gears 13, and the two first gears 13 can mesh; the rotating shaft of one of the conveying rollers 12 is transmission-connected with a motor; when the motor is working, it can drive the conveying roller 12 to rotate and convey the steel strip; the support frame 10 is also provided with a driving component, and the driving component is used to drive the two third sliders 11 to move toward each other.

[0017] During operation, a new steel strip roll is placed on the automatic coil feeding machine 1, and then the automatic coil feeding machine 1 drives the steel strip roll to rotate, so that the end of the steel strip roll is inserted between the two conveying rollers 12, and then the driving component drives the two conveying rollers 12 to move toward each other to clamp the end of the steel strip; then the staff can cut the cable tie or rope that binds the steel strip roll; then start the motor, the motor will drive the upper conveying roller 12 to rotate, and the two conveying rollers 12 will rotate in opposite directions under the meshing action of the two first gears 13, and the two conveying rollers 12 will work together to drive the end of the steel strip to move toward the side close to the guide device 2, and after the end of the steel strip moves to the support plate 3, it will move to the left along the top of the support plate 3, and after the end of the steel strip moves to contact with the pressure roller 5, the end of the steel strip will lift the pressure roller 5, and then the pressure roller 5 will be pressed on the top of the steel strip under the action of the first slider 4 and the spring, and when the steel strip continues to move to the left on the support plate 3, it will drive the pressure roller 5. The roller 5 rotates; after the end of the steel strip moves to contact the rotating roller 8, the rotating roller 8 will be pushed up and down in the same way, and then the end of the steel strip can be automatically transported to the position connected with the old steel strip; the present invention is provided with a feeding mechanism 9 and a guiding device 2. The feeding mechanism 9 is arranged on the side of the automatic coil feeding machine 1. After the steel strip roll is placed on the automatic coil feeding machine 1, when the automatic coil feeding machine 1 drives the steel strip roll to rotate, the end of the steel strip roll can automatically extend between the two conveying rollers 12. The two conveying rollers 12 can clamp the end of the steel strip and drive the end of the steel strip to move to the guiding device 2 through the drive of the motor. The guiding device 2 can guide the end of the steel strip to move to the position connected with the old steel strip. In the process of replacing the steel strip roll, no staff participation is required, which can avoid harm to the staff. The guiding device 2 can limit the steel strip, prevent the steel strip from bouncing under stress, and better prevent the steel strip from harming the staff.

[0018] Specifically, Figure 4 As shown, the driving assembly includes two connecting rods 14, one end of the two connecting rods 14 is hinged to two third sliders 11 respectively, and the other end is hinged to a fixed seat 15, and a cylinder 16 is fixedly connected to the fixed seat 15, and the cylinder 16 is fixedly installed on the support frame 10.

[0019] During operation, when the end of the new steel belt is inserted between the two conveying rollers 12, the cylinder 16 drives the fixed seat 15 to move toward each other, and the fixed seat 15 drives the bottom ends of the two connecting rods 14 to move downward synchronously. The two connecting rods 14 drive the two third sliders 11 to move toward each other, and the two third sliders 11 drive the conveying rollers 12 to move synchronously until the two conveying rollers 12 cooperate to clamp the ends of the steel belt.

[0020] Specifically, Figure 1 and Figure 5As shown, the feeding mechanism 9 also includes a fixed plate 17, and the fixed plate 17 is arranged on the outside of the support frame 10, and the support frame 10 is rotatably connected to the fixed plate 17; an incomplete gear 18 is fixedly connected to the rotating shaft of the support frame 10, and the incomplete gear 18 is meshed with a second gear 19, and a first sprocket 20 is fixedly connected to the rotating shaft of the second gear 19, and the first sprocket 20 is connected to the second sprocket 22 and the tensioning wheel 23 through a first chain 21; the second sprocket 22 is fixedly installed on the rotating shaft of one of the conveying rollers 12; the tensioning wheel 23 is installed on the fixed plate 17.

[0021] During operation, after the conveying roller 12 clamps the end of the steel belt, the conveying roller 12 rotates to drive the end of the steel belt to move to the left, which will drive the second sprocket 22 to rotate synchronously, and the second sprocket 22 will drive the first sprocket 20 to rotate synchronously through the first chain 21, and the tensioning wheel 23 plays a role in tightening the first chain 21; the rotation of the first sprocket 20 will drive the second gear 19 to rotate synchronously; in the initial state, the incomplete gear 18 and the second gear 19 are in a meshing state, and when the second gear 19 rotates, it will drive the incomplete gear 18 to rotate a certain angle, and the incomplete gear 18 will drive the support frame 10 to rotate upward a certain angle; Figure 1 As shown, although the end of the steel strip roll will be tilted, the angle will not be too large, and the smaller the angle between the support frame 10 and the vertical plane, the easier it is for the end of the steel strip roll to be automatically inserted between the two conveying rollers 12. During the rotation of the conveying rollers 12, the support frame 10 can be driven to lift downward at a certain angle, so that the end of the steel strip can better fit with the top surface of the support plate 3, and the end of the steel strip can be conveyed more smoothly.

[0022] Specifically, Figure 2 and Figure 4 As shown, the outer ends of the pressing roller 5, the rotating roller 8 and the conveying roller 12 are all made of rubber material.

[0023] During operation, the outer ends of the pressure roller 5, the rotating roller 8 and the conveying roller 12 are all made of rubber material. The rubber material has a certain elasticity, which can increase the contact area with the steel belt, making it easier to convey the steel belt to the left. At the same time, under the action of friction, it can better prevent the steel belt from shrinking to the right.

[0024] Specifically, Figure 2 and Figure 3 As shown, the guiding device 2 also includes two symmetrically arranged pressure plates 24, which are elastically slidably connected to the support plate 3; the pressure plates 24 are arranged parallel to the support plate 3 and have the same shape as the support plate 3, and the sides of the pressure plates 24 are provided with driving parts for their movement.

[0025] The driving part includes a third gear 25, which is rotatably connected to the support plate 3; the third gear 25 is meshed with a rack rod 26, and the rack rod 26 is fixedly connected to the pressure plate 24; a first rotating shaft 27 is elastically slidably connected to the rotating shaft of the third gear 25, a first bevel gear 28 is fixedly connected to the first rotating shaft 27, the first bevel gear 28 is meshed with a second bevel gear 29, a third sprocket 30 is fixedly connected to the rotating shaft of the second bevel gear 29, the third sprocket 30 is transmission-connected to the fourth sprocket 32 ​​through a second chain 31, and the fourth sprocket 32 ​​is fixedly mounted on the rotating shaft of the pressure roller 5; a fourth slider 33 is rotatably connected to the first rotating shaft 27, and a steel rope 34 is fixedly connected to the fourth slider 33; the steel rope 34 is fixedly connected to a sliding rod 35 at one end away from the fourth slider 33, the sliding rod 35 is slidably connected to the support plate 3, and a cam 36 that can drive it to move is arranged on the side of the sliding rod 35, and the cam 36 can be driven to rotate synchronously when the roller 8 rotates.

[0026] During operation, when the steel belt continues to be transported to the left after passing through the pressure roller 5, the pressure roller 5 will be driven to rotate, and the pressure roller 5 will drive the fourth sprocket 32 ​​to rotate synchronously, and the fourth sprocket 32 ​​will drive the third sprocket 30 to rotate synchronously through the second chain 31, and the third sprocket 30 will drive the second bevel gear 29 to rotate synchronously, and the second bevel gear 29 will drive the first bevel gear 28 to rotate synchronously, and the first bevel gear 28 will drive the third gear 25 to rotate synchronously through the first rotating shaft 27, and the third gear 25 will drive the rack rod 26 and the pressing plate 24 to move synchronously outward; the movement of the pressing plate 24 outward will not hinder the end of the steel belt from being transported to the left on the supporting plate 3; after the end of the steel belt passes through the two rotating rollers 8, the steel belt continues to move to drive the rotating roller 8 to rotate, and the rotating roller 8 will drive the cam 36 to rotate synchronously, and the cam 36 will drive the sliding rod 35 to move to the right, and the sliding rod 35 will drive the fourth sliding block 33 to move to the left through the steel rope 34, and the fourth sliding block 33 will drive the first rotating shaft 27 and the first The first bevel gear 28 moves to the side away from the second bevel gear 29, and the first bevel gear 28 and the second bevel gear 29 are disengaged and meshed. Then the pressure plate 24 will return to the initial position under the elastic force of the spring, and the two pressure plates will adjust the position of the steel belt so that the steel belt is in the middle of the support plate 3; and the pressure plate 24 is set to be L-shaped, and the pressure plate 24 can limit the steel belt in the vertical direction, which can prevent the steel belt from bouncing up under the action of stress during subsequent processing; the present invention is provided with the pressure plate 24 and the driving part. When the pressure roller 5 starts to rotate, the driving part can drive the pressure plate 24 to move outward to make room for the steel belt to move on the support plate 3, so that the steel belt can move more smoothly. After the end of the steel belt passes through the roller 8, the driving part can drive the two pressure plates 24 to move toward each other when the steel belt drives the roller 8 to rotate, so as to constrain the front and back and up and down directions of the steel belt, so as to prevent the steel belt from bouncing up under the action of stress during subsequent processing.

[0027] Specifically, Figure 6 As shown, a ball bearing 37 is installed on the side wall of the pressure plate 24 opposite to the support plate 3.

[0028] During operation, through the arrangement of the ball bearings 37, the pressure plate 24 can ensure that the steel belt is restrained and at the same time make the steel belt move more smoothly.

[0029] Specifically, Figure 2 As shown, the cam 36 is connected to the rotating roller 8 via a one-way bearing 38 .

[0030] During operation, the one-way bearing can be set to better prevent the steel belt from rebounding to the right under stress.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic coil feeding guide device for a thin-walled steel raw material cutting production line, comprising an automatic coil feeding machine (1) for feeding, characterized in that: Also includes A guiding device (2) is arranged on the side of the automatic coil feeding machine (1) and is used to guide the steel strip; the guiding device (2) comprises a support plate (3), the top of the support plate (3) is arranged in an arc shape, a first slider (4) is elastically slidably connected to the support plate (3), the first slider (4) is rotatably connected to a pressure roller (5), the pressure roller (5) is used to constrain the steel strip in the up and down directions, and the steel strip can drive the pressure roller (5) to rotate when moving on the support plate (3); the support plate (3) is fixedly connected to a mounting plate (6) at one end away from the automatic coil feeding machine (1), two second sliders (7) arranged symmetrically are elastically slidably connected to the mounting plate (6), the second slider (7) is rotatably connected to a rotating roller (8), and the rotating roller (8) can constrain and guide the steel strip; A feeding mechanism (9) is arranged between the automatic coil feeding machine (1) and the guide device (2) and is used to feed the end of the steel strip into the guide device (2); the feeding mechanism (9) comprises a support frame (10), on which two symmetrically arranged third sliders (11) are slidably mounted, and the two third sliders (11) are both rotatably mounted with a conveying roller (12); the rotating shafts of the two conveying rollers (12) are both fixedly connected with a first gear (13), and the two first gears (13) can mesh; the rotating shaft of one of the conveying rollers (12) is transmission-connected with a motor; when the motor is working, it can drive the conveying roller (12) to rotate and convey the steel strip; the support frame (10) is also provided with a driving component, and the driving component is used to drive the two third sliders (11) to move towards each other.

2. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 1 is characterized in that: The driving assembly comprises two connecting rods (14), one end of the two connecting rods (14) being hinged to two third sliders (11) respectively, and the other end being hinged to a fixed seat (15) together, the fixed seat (15) being fixedly connected to a cylinder (16), and the cylinder (16) being fixedly mounted on the support frame (10).

3. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 1 is characterized in that: The feeding mechanism (9) further comprises a fixed plate (17), the fixed plate (17) being arranged outside the support frame (10), the support frame (10) being rotatably connected to the fixed plate (17); an incomplete gear (18) being fixedly connected to the rotation shaft of the support frame (10), the incomplete gear (18) being meshed with a second gear (19), a first sprocket (20) being fixedly connected to the rotation shaft of the second gear (19), the first sprocket (20) being transmission-connected to a second sprocket (22) and a tensioning wheel (23) via a first chain (21); the second sprocket (22) being fixedly mounted on the rotation shaft of one of the conveying rollers (12); and the tensioning wheel (23) being mounted on the fixed plate (17).

4. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 1 is characterized in that: The outer ends of the pressure roller (5), the rotating roller (8) and the conveying roller (12) are all made of rubber material.

5. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 1 is characterized in that: The guiding device (2) further comprises two symmetrically arranged pressing plates (24), wherein the pressing plates (24) are elastically slidably connected to the supporting plate (3); the pressing plates (24) are arranged parallel to the supporting plate (3) and have the same shape as the supporting plate (3), and the sides of the pressing plates (24) are provided with driving parts for their movement.

6. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 5 is characterized in that: The driving part comprises a third gear (25), the third gear (25) being rotatably connected to the support plate (3); the third gear (25) is meshed with a rack rod (26), the rack rod (26) being fixedly connected to the pressure plate (24); a first rotating shaft (27) is elastically slidably connected to the rotating shaft of the third gear (25), a first bevel gear (28) is fixedly connected to the first rotating shaft (27), the first bevel gear (28) is meshed with a second bevel gear (29), a third sprocket (30) is fixedly connected to the rotating shaft of the second bevel gear (29), the third sprocket (30) A fourth sprocket (32) is connected to the first rotating shaft (27) via a second chain (31), and the fourth sprocket (32) is fixedly mounted on the rotating shaft of the pressure roller (5); a fourth slider (33) is rotatably connected to the first rotating shaft (27), and a steel rope (34) is fixedly connected to the fourth slider (33); a sliding rod (35) is fixedly connected to one end of the steel rope (34) away from the fourth slider (33), and the sliding rod (35) is slidably connected to the support plate (3); a cam (36) capable of driving the sliding rod (35) to move is arranged on the side of the sliding rod (35), and the cam (36) can be driven to rotate synchronously when the rotating roller (8) rotates.

7. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 6 is characterized by: A ball bearing (37) is mounted on the side wall of the pressure plate (24) opposite to the support plate (3).

8. The automatic coil feeding guide device for the thin-walled steel raw material cutting production line according to claim 7 is characterized in that: The cam (36) is connected to the rotating roller (8) via a one-way bearing (38).

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