A cold hardened strip steel composite straightening machine

Abstract

The present invention discloses a cold-hardened steel strip composite straightening machine, which specifically relates to the technical field of cold-hardened steel strip processing, and comprises a processing base, the upper surface of the processing base is fixedly connected to the lower surfaces of two mechanical processing vertical plates, the mechanical processing vertical plate located on the right is fixedly connected with a driving device, the driving shaft on the left side of the driving device is fixedly connected to the right end of the rotating shaft located below, the number of the rotating shafts is two, and the outer surfaces of the two rotating shafts are sleeved with bearings. The present invention reduces the difficulty in ensuring the effect of the steel strip after straightening due to the influence of the yield degree by arranging a transmission gear, a driving motor, an extrusion plate and a limiting slide bar, reduces the residual stress of the steel plate after straightening, ensures the actual use performance of the steel plate, and can fix the steel strip by controlling the driving motor. Similarly, a cyclic treatment method can be adopted to continuously convey and extrude the steel strip, thereby improving the actual use effect of the straightening machine.

Description

Technical Field

[0001] The invention relates to the technical field of cold-hardened strip steel processing, and more specifically to a cold-hardened strip steel composite straightening machine. Background Art

[0002] Hot straightening is a necessary process to make the plate straight. Generally, it is a roller straightener. In actual production, in order to make thin, thick plates and strips share a set of straighteners, the roller diameter of the straightener is generally small and the number of rollers is large. However, the small roller diameter will affect the straightening effect, so modern medium and thick plate mills all use inclined quadruple 9-11 roller straighteners. The final straightening temperature is generally 650℃-750℃. If the straightening temperature is too high, the straightened steel plate may also warp when cooling on the cooling bed; if the straightening temperature is too low, the yield strength of the strip increases, the straightening effect is not good, and the residual stress on the surface of the steel plate after straightening is high, which reduces the performance of the steel plate, especially the cold bending performance. Therefore, major steel equipment manufacturers in the world are currently improving and enhancing the structure and performance of straighteners.

[0003] When producing coils, especially cold-rolled strip steel, a coil straightening and bending leveler is required to obtain a higher flatness of the cold-rolled strip steel through greater tension stretching and the bending effect of a small roller diameter and the straightening effect of a larger roller diameter to meet user requirements.

[0004] A Chinese patent document (CN105290110B) discloses a cold-rolled steel strip composite straightening machine, which states in the specification that "the cold-rolled steel strip has the characteristics of large internal stress, large yield strength, high yield strength ratio, low elongation and curved and wavy plate surface. As the thickness of the steel strip decreases, its characteristics become more and more obvious, and plate straightening becomes more and more difficult. It has always been a difficult problem in the industry to obtain such product coils by general plate straightening methods. At present, the industry uses the method of configuring a straightening machine in the process section of the production unit to perform plate straightening deep processing on the cold-rolled cold-rolled steel strip, but it cannot effectively improve the plate shape problem of the cold-rolled steel. The main reason is that the straightening capacity of the straightening machine equipment is limited, and the mechanical properties and characteristics of this type of plate lead to problems such as a small settable elongation range, and the difficulty in controlling parameters such as the insertion amount of the bending roller and the straightening roller and the process tension during the straightening process. The title also proposed that "in view of the characteristics of cold-hardened strip steel, such as large internal stress, large yield strength, high yield strength ratio, low elongation and curved and wavy plate surface, composite straightening equipment should be configured in the process section of the relevant unit to perform deep processing of the plate shape. The stretching and bending straightening of the stretching and straightening unit and the continuous positive and reverse bending of the multi-roller straightening unit with wide area, small wrap angle, multiple passes and gradually decreasing can make the strip steel produce plastic yield position expansion; through the coupling effect of the composite bending of the stretching and straightening unit and the multi-roller straightening unit, the slight elongation change in the straightening process of the cold-hardened strip steel can be achieved, the plate shape quality of the cold-hardened strip steel can be improved, and the market demand for cold-hardened strip steel can be met." However, in actual application, the straightening process cannot be fully adjusted according to different strip steels and different bending degrees of the strip steel. Therefore, the following problems still exist in the existing straightening machine and the device described in the cited comparative case:

[0005] When the existing straightening machine straightens the steel plate, plastic deformation occurs in the length direction, resulting in a speed difference of up to 3% between the steel plate and the straightening roller, thereby generating additional torque. The previous overall transmission is prone to damage to the connecting shaft and transmission gear. At the same time, when there is a speed difference between the straightening roller and the steel plate, the steel plate slips and damages the surface. In addition, since it is difficult to adjust the machine according to the bending degree of the steel plate itself, the yield degree of the strip is easily affected, making it difficult to ensure the effect after straightening. As a result, the residual stress on the surface of the steel plate after straightening is high, which reduces the performance of the steel plate and makes it difficult to meet the needs of actual applications. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cold-hardened strip composite straightening machine. The technical problem to be solved by the present invention is: when the existing straightening machine straightens the steel plate, due to plastic deformation in the length direction, the speed difference between the steel plate and the straightening roller can reach 3%, thereby generating additional torque. The previous overall transmission is prone to damage to the connecting shaft and the transmission gear. At the same time, when the speed difference between the straightening roller and the steel plate occurs, the slippage of the steel plate will damage the surface. In addition, since it is difficult to adjust the machine according to the bending degree of the steel plate itself, the yield degree of the strip is easily affected, and it is difficult to ensure the effect after straightening. The residual stress on the surface of the steel plate after straightening is high, which reduces the performance of the steel plate and is difficult to meet the actual application needs.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a cold-hardened strip steel composite straightening machine, comprising a processing base, the upper surface of the processing base is fixedly connected to the lower surfaces of two machined vertical plates, the machined vertical plate on the right is fixedly connected with a driving device, the driving shaft on the left side of the driving device is fixedly connected to the right end of the rotating shaft located below, the number of the rotating shafts is two, and the outer surfaces of the two rotating shafts are sleeved with bearings, the bearings are clamped in the machined vertical plates, the left ends of the two rotating shafts pass through the machined vertical plates and are respectively fixedly connected to the right sides of the two transmission gears, and the left sides of the two transmission gears are respectively fixedly connected to the right sides of the two processing disks, The upper processing disk is located above the transmission gear, and the lower processing disk is located below the transmission gear, and the two transmission gears are meshed with each other. The outer surfaces of the two processing disks are fixedly connected with extrusion rods, and the other ends of the two extrusion rods are respectively fixedly connected to the sides away from the two extrusion plates, and the opposite surfaces of the two extrusion plates overlap each other. The outer surfaces of the two processing disks are respectively fixedly connected to the opposite surfaces of the two positioning plates, and a positioning groove is provided on the left side of the positioning plate. A limiting device is slidably connected in the positioning groove, and the right side of the limiting device is fixedly connected to the left side of the positioning disk, and the right side of the positioning disk is fixedly connected to the left side of the machined vertical plate located on the right side.

[0008] As a further solution of the present invention: the driving shaft on the right side of the driving device is fixedly connected to the left side of the first transmission wheel, a transmission belt is provided on the outer surface of the first transmission wheel, the first transmission wheel is connected to the second transmission wheel through the transmission belt, and the left side of the second transmission wheel is fixedly connected to the inner wall of the bearing retainer through a bearing and a rotating shaft.

[0009] As a further solution of the present invention: the limit device includes a limit block, the number of the limit blocks is two, and the opposite surfaces of the two limit blocks are respectively fixedly connected to the left and right ends of the limit slide rod, the limit slide rod is slidably connected in the positioning slide groove, the shape of the limit slide rod is adapted to the shape of the positioning slide groove, and the right side surface of the limit block located on the right side is fixedly connected to the left side surface of the positioning plate.

[0010] As a further solution of the present invention: the driving device includes a driving motor, the left end of the driving motor is fixedly connected to the right end of the rotating shaft, the outer surface of the driving motor is fixedly connected to the inner wall of the motor holder, the left side surface of the motor holder is fixedly connected to the right side surface of the machined vertical plate located on the right side, and the driving motor is configured as a dual-axis motor.

[0011] As a further solution of the present invention: the second transmission wheel is connected to the exhaust fan blade through a bearing and a rotating shaft, the outer surface of the bearing retainer is fixedly connected to the inner wall of the sealing cylinder, the exhaust fan blade is located in the sealing cylinder, the left side of the sealing cylinder is fixedly connected to the right side of the filter box, and the lower surface of the filter box is fixedly connected to the upper surface of the processing base.

[0012] As a further solution of the present invention: the front side of the filter box is fixedly connected to one end of the back side of the first duct, the other end of the first duct is connected to the bottom end of the second duct, the filter box is connected to the second duct through the first duct, and the other end of the second duct is connected to the right side of the dust hood.

[0013] As a further solution of the present invention: the upper surface of the processing base is fixedly connected to the lower surface of the straightening machine body, and the upper surfaces of the two machined vertical plates are provided with adjustment devices, the front sides of the two machined vertical plates are fixedly connected with the same baffle, and the dust collecting hood is located on the front side of the straightening machine body.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention is provided with a transmission gear, a processing disc, a positioning slide, a driving motor, an extrusion plate and a limiting slide rod. When using the straightening machine, the strip steel needs to be fixed on the surface of the straightening machine, and the strip steel is transported through the straightening machine body. During the transmission process, the straightening process of the strip steel is observed. When the strip steel is bent or part of it protrudes, the driving motor needs to be started in time. When the driving motor is running, the driving motor will quickly drive the transmission gear located below to rotate. At the same time, the two transmission gears are in a state of mutual meshing, and the two processing discs will drive the two extrusion plates to move relative to each other as the transmission gear rotates. Moreover, since the processing disc and the transmission gear are not co-centered, the processing disc makes an arc motion, accompanied by With the rotation of the processing plate and the limitation of the positioning slide groove and the limiting slide bar, the two extrusion rods will move in a horizontal arc shape, ensuring that the two extrusion plates can fix the strip steel in the first time when the strip steel is bent, and the strip steel is processed by the two extrusion plates and the straightening machine body, avoiding the speed difference between the straightening machine and the strip steel due to the plastic deformation of the strip steel in the length direction, reducing the difficulty in ensuring the effect of the straightening due to the affected yield strength of the strip steel, reducing the residual stress of the steel plate after straightening, ensuring the actual use performance of the steel plate, and the strip steel can be fixed by controlling the driving motor. Similarly, the circular processing method can be adopted to continuously convey and extrude the strip steel, thereby improving the actual use effect of the straightening machine;

[0016] 2. The present invention is provided with a filter box, exhaust fan blades and a drive motor. When the drive motor is in a continuous operation state, the first transmission wheel will drive the second transmission wheel to rotate. At this time, the exhaust fan blades will draw air in the dust hood through the first duct and the second duct, so that the air flow rate above the dust hood is rapidly increased. When the air flow rate on the surface of the strip steel increases, the heat loss of the strip steel will be accelerated, so that the strip steel can obtain effective heat dissipation during the straightening process, avoiding excessive expansion of the molecular structure of the strip steel due to deformation of the strip steel, ensuring the processing quality of the strip steel, and collecting impurities and dust in the strip steel processing process, reducing the pollution of the straightening machine to the environment, and improving the environmental protection effect of the straightening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the filter box of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the transmission gear of the present invention;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the processing disk of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the three-dimensional mechanical processing vertical plate of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the processing disk explosion of the present invention;

[0023] In the figure: 1 processing base, 2 machining vertical plate, 3 driving device, 301 driving motor, 302 motor holder, 4 transmission gear, 5 rotating shaft, 6 bearing, 7 processing disk, 8 extrusion rod, 9 extrusion plate, 10 positioning plate, 11 positioning slide, 12 limiting device, 121 limiting block, 122 limiting slide, 13 positioning disk, 14 first transmission wheel, 15 transmission belt, 16 second transmission wheel, 17 bearing holder, 18 sealing cylinder, 19 exhaust fan blade, 20 filter box, 21 first duct, 22 second duct, 23 dust cover, 24 straightening machine body, 25 adjustment device. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-6As shown, the present invention provides a cold-hardened strip steel composite straightening machine, including a processing base 1, the upper surface of the processing base 1 is fixedly connected to the lower surfaces of two mechanical processing vertical plates 2, the mechanical processing vertical plate 2 located on the right is fixedly connected with a driving device 3, the driving shaft on the left side of the driving device 3 is fixedly connected to the right end of the rotating shaft 5 located below, the number of the rotating shafts 5 is two, and the outer surfaces of the two rotating shafts 5 are sleeved with bearings 6, the bearings 6 are clamped in the mechanical processing vertical plates 2, the left ends of the two rotating shafts 5 pass through the mechanical processing vertical plates 2 and are respectively fixedly connected to the right sides of the two transmission gears 4, and the left sides of the two transmission gears 4 are respectively fixedly connected to the right sides of the two processing disks 7, the processing disk 7 located above is located above the transmission gear 4, the processing disk 7 located below is located below the transmission gear 4, and the two transmission gears 4 are meshed with each other, the outer surfaces of the two processing disks 7 are fixedly connected with extrusion rods 8, and the other ends of the two extrusion rods 8 are respectively fixedly connected to the sides away from the two extrusion plates 9, and the opposite surfaces of the two extrusion plates 9 The two processing disks 7 are overlapped with each other, and the outer surfaces of the two processing disks 7 are fixedly connected to the opposite surfaces of the two positioning plates 10 respectively. A positioning slide groove 11 is provided on the left side of the positioning plate 10, and a limiting device 12 is slidably connected in the positioning slide groove 11. The right side of the limiting device 12 is fixedly connected to the left side of the positioning disk 13, and the right side of the positioning disk 13 is fixedly connected to the left side of the mechanical processing vertical plate 2 located on the right. By arranging the transmission gear 4, the processing disk 7, the extrusion plate 9 and the limiting slide bar 122, the two extrusion plates 9 and the straightening machine body 24 process the strip steel, so as to avoid the speed difference between the straightening machine and the strip steel due to the plastic deformation of the strip steel in the length direction, reduce the difficulty in ensuring the effect of the straightening due to the influence of the yield degree of the strip steel, reduce the residual stress of the steel plate after straightening, ensure the actual performance of the steel plate, and fix the strip steel by controlling the driving motor 301. Similarly, a cyclic processing method can be adopted to continuously convey and extrude the strip steel, thereby improving the actual use effect of the straightening machine.

[0026] like Figure 2 , Figure 3 and Figure 4As shown, the driving shaft on the right side of the driving device 3 is fixedly connected to the left side of the first transmission wheel 14, and a transmission belt 15 is provided on the outer surface of the first transmission wheel 14. The first transmission wheel 14 is transmission-connected to the second transmission wheel 16 through the transmission belt 15, and the left side of the second transmission wheel 16 is fixedly connected to the inner wall of the bearing retainer 17 through the bearing 6 and the rotating shaft 5. Because the filter box 20 and the exhaust fan blades 19 are provided, the strip steel can be effectively cooled during the straightening process, avoiding the excessive expansion of the molecular structure of the strip steel due to the deformation of the strip steel, thereby ensuring the processing quality of the strip steel. At the same time, it has the effect of collecting impurities and dust in the strip processing process, reducing the pollution of the straightening machine to the environment, and improving the environmental protection effect of the straightening machine. The limit device 12 includes a limit block 121. There are two limit blocks 121, and the opposite surfaces of the two limit blocks 121 are respectively fixedly connected to the left and right ends of the limit slide bar 122. The limit slide bar 122 is slidably connected in the positioning slide groove 11. The shape of the limit slide bar 122 is adapted to the shape of the positioning slide groove 11. The right side surface of the limit block 121 on the right side is fixedly connected to the left side surface of the positioning plate 13.

[0027] like Figure 2 , Figure 5 and Figure 6 As shown, the driving device 3 includes a driving motor 301, the left end of the driving motor 301 is fixedly connected to the right end of the rotating shaft 5, the outer surface of the driving motor 301 is fixedly connected to the inner wall of the motor holder 302, the left side of the motor holder 302 is fixedly connected to the right side of the mechanical processing vertical plate 2 located on the right side, and the driving motor 301 is configured as a dual-axis motor. Because a filter box 20 is provided, the gas extracted by the exhaust fan blade 19 will pass through the filter box 20 and then be discharged through the sealing cylinder 18, so that the waste chips contained in the collected gas can be effectively filtered to prevent the waste chips from escaping into the air, thereby ensuring the actual use effect of the straightening machine. The second transmission wheel 16 is transmission-connected to the exhaust fan blade 19 through the bearing 6 and the rotating shaft 5, the outer surface of the bearing holder 17 is fixedly connected to the inner wall of the sealing cylinder 18, the exhaust fan blade 19 is located in the sealing cylinder 18, the left side of the sealing cylinder 18 is fixedly connected to the right side of the filter box 20, and the lower surface of the filter box 20 is fixedly connected to the upper surface of the processing base 1.

[0028] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the front of the filter box 20 is fixedly connected to one end of the back of the first duct 21, the other end of the first duct 21 is connected to the bottom end of the second duct 22, the filter box 20 is connected to the second duct 22 through the first duct 21, the other end of the second duct 22 is connected to the right side of the dust hood 23, the upper surface of the processing base 1 is fixedly connected to the lower surface of the straightening machine body 24, and the upper surfaces of the two machined vertical plates 2 are provided with adjustment devices 25, the front sides of the two machined vertical plates 2 are fixedly connected to the same baffle, and the dust hood 23 is located on the front of the straightening machine body 24.

[0029] Working principle of the present invention: When using the straightening machine, the steel strip needs to be fixed on the surface of the straightening machine, and the steel strip is transported through the straightening machine body 24. During the transportation process, the straightening process of the steel strip is observed. When the steel strip is bent or part of it is protruding, the drive motor 301 needs to be started in time. When the drive motor 301 is running, the drive motor 301 will quickly drive the transmission gear 4 located below to rotate. At the same time, the two transmission gears 4 are in a state of mutual meshing, and the two processing discs 7 will drive the two extrusion plates 9 to move relative to each other as the transmission gear 4 rotates. Moreover, since the processing disc 7 and the transmission gear 4 are not in the same circle, The center of the steel strip is the center of the steel strip, so the processing disk 7 makes an arc movement, accompanied by the rotation of the processing plate and the limitation of the positioning slide groove 11 and the limit slide bar 122, so that the two extrusion rods 8 will move in a horizontal arc, ensuring that the two extrusion plates 9 can fix the steel strip in the first time when the steel strip is bent. When the driving motor 301 is in a continuous operation state, the first transmission wheel 14 will drive the second transmission wheel 16 to rotate. At this time, the exhaust fan blades 19 will extract the air in the dust collecting hood 23 through the first duct 21 and the second duct 22, so that the air flow rate above the dust collecting hood 23 increases rapidly. When the air flow rate on the surface of the steel strip increases, the heat loss of the steel strip will be accelerated.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cold-hardened steel strip composite straightening machine, comprising a processing base (1), characterized in that: The upper surface of the processing base (1) is fixedly connected to the lower surfaces of the two machining vertical plates (2); the machining vertical plate (2) located on the right is fixedly connected to a driving device (3); the driving shaft on the left side of the driving device (3) is fixedly connected to the right end of the rotating shaft (5) located below; the number of the rotating shafts (5) is two, and the outer surfaces of the two rotating shafts (5) are sleeved with bearings (6); the bearings (6) are clamped in the machining vertical plates (2); the left ends of the two rotating shafts (5) pass through the machining vertical plates (2) and are respectively fixedly connected to the right sides of the two transmission gears (4); and the left sides of the two transmission gears (4) are respectively fixedly connected to the right sides of the two processing disks (7); the processing disk (7) located above is located above the transmission gear (4); and the processing disk (7) located below is located above the transmission gear (4). The disk (7) is located below the transmission gear (4), and the two transmission gears (4) are meshed with each other. The outer surfaces of the two processing disks (7) are fixedly connected with extrusion rods (8), and the other ends of the two extrusion rods (8) are respectively fixedly connected to the sides away from the two extrusion plates (9). The opposite surfaces of the two extrusion plates (9) overlap each other. The outer surfaces of the two processing disks (7) are respectively fixedly connected to the opposite surfaces of the two positioning plates (10). The left side of the positioning plate (10) is provided with a positioning groove (11). A limiting device (12) is slidably connected in the positioning groove (11). The right side of the limiting device (12) is fixedly connected to the left side of the positioning disk (13), and the right side of the positioning disk (13) is fixedly connected to the left side of the mechanical processing vertical plate (2) located on the right side.

2. A cold-hardened strip steel composite straightening machine according to claim 1, characterized in that: The drive shaft on the right side of the drive device (3) is fixedly connected to the left side of the first transmission wheel (14); a transmission belt (15) is provided on the outer surface of the first transmission wheel (14); the first transmission wheel (14) is transmission-connected to the second transmission wheel (16) via the transmission belt (15); and the left side of the second transmission wheel (16) is fixedly connected to the inner wall of the bearing retainer (17) via the bearing (6) and the rotating shaft (5).

3. The cold-hardened strip composite straightening machine according to claim 1, characterized in that: The limiting device (12) comprises a limiting block (121), the number of the limiting blocks (121) is two, and the opposite surfaces of the two limiting blocks (121) are respectively fixedly connected to the left and right ends of a limiting slide bar (122), the limiting slide bar (122) is slidably connected in the positioning slide groove (11), the shape of the limiting slide bar (122) is adapted to the shape of the positioning slide groove (11), and the right side surface of the limiting block (121) located on the right side is fixedly connected to the left side surface of the positioning plate (13).

4. A cold-hardened strip steel composite straightening machine according to claim 2, characterized in that: The driving device (3) comprises a driving motor (301), the left end of the driving motor (301) is fixedly connected to the right end of the rotating shaft (5), the outer surface of the driving motor (301) is fixedly connected to the inner wall of the motor holder (302), the left side surface of the motor holder (302) is fixedly connected to the right side surface of the machined vertical plate (2) located on the right side, and the driving motor (301) is configured as a dual-axis motor.

5. The cold-hardened strip steel composite straightening machine according to claim 2, characterized in that: The second transmission wheel (16) is transmission-connected to the exhaust fan blade (19) via the bearing (6) and the rotating shaft (5); the outer surface of the bearing retainer (17) is fixedly connected to the inner wall of the sealing cylinder (18); the exhaust fan blade (19) is located in the sealing cylinder (18); the left side surface of the sealing cylinder (18) is fixedly connected to the right side surface of the filter box (20); and the lower surface of the filter box (20) is fixedly connected to the upper surface of the processing base (1).

6. A cold-hardened strip steel composite straightening machine according to claim 5, characterized in that: The front side of the filter box (20) is fixedly connected to one end of the back side of the first duct (21), the other end of the first duct (21) is connected to the bottom end of the second duct (22), the filter box (20) is connected to the second duct (22) via the first duct (21), and the other end of the second duct (22) is connected to the right side of the dust collecting hood (23).

7. A cold-hardened strip steel composite straightening machine according to claim 6, characterized in that: The upper surface of the processing base (1) is fixedly connected to the lower surface of the straightening machine body (24), and the upper surfaces of the two machined vertical plates (2) are both provided with adjustment devices (25). The front sides of the two machined vertical plates (2) are fixedly connected to the same baffle, and the dust collecting hood (23) is located on the front side of the straightening machine body (24).

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