Strip steel straightening device

Abstract

The invention discloses a strip steel straightening device, and belongs to the technical field of cold and hot rolling strip steel production. The fixing mechanism is arranged on the machine frame body and used for limiting the position in the strip steel straightening process, the fixing mechanism comprises a fixed installation part and four fixed roll shafts, the installation part is arranged on the machine frame body, the four fixed roll shafts are arranged on the installation part at equal intervals, and the movable mechanism is arranged on the machine frame body. According to the strip steel straightening device, the fixed mechanism and the movable mechanism are used in cooperation, on the basis of an original tensioning device, three fixed roller shafts are changed into four roller shafts, two movable roller shafts are changed into three roller shafts, namely, three S bends are increased to four S bends, the strip steel straightening effect is enhanced, and the product quality is improved; the side sliding block of the rack body is changed from a fixed welding mode to a movable adjustable mode, the maintenance cost of spare parts is reduced, and the whole set of equipment is high in stability and convenient to maintain.

Description

Technical Field

[0001] The invention belongs to the technical field of cold and hot rolled strip steel production, in particular to a strip steel straightening device. Background Art

[0002] Strip steel is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Strip steel, also known as steel strip, is within 1300mm in width and its length varies slightly according to the size of each roll. Ultra-high-strength strip steel refers to strip steel with a yield strength greater than 1000Mpa. The incoming material (i.e. raw material) of this kind of strip steel in the production process has a very poor plate shape, with a large wave shape, and at the same time has high strength. It is difficult to make it flat by conventional pressing methods, resulting in local bending of the strip steel and poor flatness.

[0003] There is also a method in the prior art to improve flatness by applying tension to the strip. However, mechanical processing and strengthening processes of steel can cause residual stress. Residual stress refers to the self-balanced internal stress that remains in the object after eliminating external forces or uneven temperature fields. For example, cold drawing, bending, cutting, rolling, shot peening, casting, forging, welding and metal heat treatment, etc., may cause residual stress due to uneven plastic deformation or phase change. When parts are improperly heat treated, welded or cut, residual stress will cause the parts to warp or twist, or even crack, or cracks will appear on the surface after quenching or grinding. The existence of residual stress sometimes does not immediately manifest as a defect. However, when the total stress of the parts exceeds the strength limit due to the superposition of working stress and residual stress, cracks and fractures will appear. Due to the uneven distribution of residual stress, when subjected to high strength such as 1000Mpa, cracks and fractures will appear in the strip. Therefore, although the ultra-high-strength strip can achieve improved flatness by applying tension, it brings about the problem of reduced yield strength, and the overall mechanical properties of the strip cannot be improved.

[0004] The shortcomings and deficiencies in the existing production process of the tensioning device: The original design of the tensioning device consists of three fixed rollers and two movable rollers. After the strip is pulled into the coiler, the movable roller moves to clamp the strip. When coiling, the three rollers and two rollers use a total of three S-bends to straighten the strip. The actual strip straightening effect quality on site cannot meet the needs of some customers, affecting the strip coiling quality. Summary of the invention

[0005] The purpose of the present invention is to change the fixed roller shaft from three rollers to four rollers and the movable roller shaft from two rollers to three rollers on the basis of the original tensioning device through the coordinated use of the fixed mechanism and the movable mechanism, that is, to increase the three S-bends to four S-bends, thereby enhancing the strip straightening effect and improving the product quality. Through the use of the slider, the slider on the side of the frame body is changed from a fixed welded type to a movable and adjustable type, thereby reducing the spare parts maintenance cost. In addition, the whole set of equipment has strong stability and is easy to maintain.

[0006] The technical solution adopted by the present invention is as follows: a strip steel straightening device, comprising: Rack body; A fixing mechanism is arranged on the frame body and is used to limit the position of the strip during the straightening process. The fixing mechanism includes a fixed mounting component and four fixed rollers. The mounting component is arranged on the frame body, and the four fixed rollers are equidistantly arranged on the mounting component. A movable mechanism is arranged on the frame body and is used for adjusting the gap during the strip straightening process. The movable mechanism comprises a positioning component, a movable mounting component and three movable rollers. The positioning component is arranged on the frame body, the movable mounting component is arranged on the positioning component, and the three movable rollers are equidistantly arranged on the movable mounting component; and The slider is provided in plurality, and the plurality of sliders are all installed on one side of the outer surface of the frame body.

[0007] Wherein, the fixed installation component includes a fixed roller assembly frame and a plurality of fixed roller T-shaped bolts, the fixed roller assembly frame is installed at the top side edge of the frame body, the plurality of fixed roller T-shaped bolts are all arranged on the fixed roller assembly frame, and the plurality of fixed roller T-shaped bolts are connected to the frame body.

[0008] Wherein, the positioning component comprises: A driving assembly is provided on the frame body and is used for controlling the position adjustment of multiple movable rollers; A connecting assembly is disposed on the driving assembly and connected to the frame body; and The moving assembly is arranged on the frame body and is connected with the connecting assembly to enable the overall movement of the plurality of movable rollers.

[0009] Wherein, the driving component is an opening and closing control hydraulic cylinder, and the opening and closing control hydraulic cylinder is installed in the frame body near the center of one end edge.

[0010] Among them, the connecting assembly includes a frame connecting pin and a vehicle body connecting pin, the frame connecting pin is rotatably connected to one end of the opening and closing control hydraulic cylinder, and the frame connecting pin is fixedly connected to the frame body, and the vehicle body connecting pin is rotatably connected to the other end of the opening and closing control hydraulic cylinder.

[0011] Wherein, the moving component is a moving vehicle body, the moving vehicle body is slidably connected to the frame body, and one end of the vehicle body connecting pin is fixedly connected to the moving vehicle body.

[0012] Wherein, the movable installation component includes a movable roller assembly frame and a plurality of movable roller T-shaped bolts, the movable roller assembly frame is fixedly connected to the mobile vehicle body, the plurality of movable roller T-shaped bolts are all arranged on the movable roller assembly frame, and the plurality of movable roller T-shaped bolts are all connected to a plurality of movable roller shafts.

[0013] Wherein, each of the sliding blocks is provided with a plurality of hexagon socket bolts, and the plurality of hexagon socket bolts are connected to the frame body.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In the present invention, by using the fixed mechanism in coordination with the movable mechanism, on the basis of the original tensioning device, the fixed roller shaft is changed from three rollers to four rollers, and the movable roller shaft is changed from two rollers to three rollers, that is, the three S-bends are increased to four S-bends, thereby enhancing the strip straightening effect and improving the product quality.

[0015] (2) In the present invention, by using the slider, the slider on the side of the frame body is changed from a fixed welded type to a movable and adjustable type, thereby reducing the spare parts maintenance cost. In addition, the whole set of equipment has strong stability and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A top view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 A side view of the movable roller shaft of the present invention; Figure 4 It is a side view of the fixed roller shaft of the present invention.

[0017] Markings in the figure: 1. Opening and closing control hydraulic cylinder; 2. Car body connecting pin shaft; 3. Moving car body; 4. Fixed roller assembly frame; 5. Fixed roller T-shaped bolt; 6. Frame body; 7. Movable roller assembly frame; 8. Movable roller T-shaped bolt; 9. Slider; 10. Hexagon socket bolt; 11. Frame connecting pin shaft; 12. Movable roller shaft; 13. Fixed roller shaft. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Embodiment 1, refer to Figure 1-4 : A strip steel straightening device, comprising: Frame body 6; A fixing mechanism is arranged on the frame body 6 and is used to limit the position of the strip during the straightening process. The fixing mechanism includes a fixed mounting component and four fixed rollers 13. The mounting component is arranged on the frame body 6, and the four fixed rollers 13 are equidistantly arranged on the mounting component. A movable mechanism is provided on the frame body 6 and is used for adjusting the gap during the strip straightening process. The movable mechanism includes a positioning component, a movable mounting component and three movable roller shafts 12. The positioning component is provided on the frame body 6, the movable mounting component is provided on the positioning component, and the three movable roller shafts 12 are equidistantly provided on the movable mounting component; and There are multiple sliders 9 , and the multiple sliders 9 are all installed on one side of the outer surface of the frame body 6 .

[0020] In this implementation scheme: the four fixed rollers 13 and the three movable rollers 12 cooperate one by one, and each movable roller 12 is arranged between every two fixed rollers 13, and cooperate with each other to form an S-bend, thereby enhancing the strip straightening effect and improving product quality. The slider 9 on one side of the frame body 6 is changed from a fixed welded type to a movable and adjustable type, thereby reducing the spare parts maintenance cost. In addition, the whole set of equipment has strong stability and is easy to maintain. The wear of the slider 9 can be adjusted by adding or removing gaskets between the slider 9 and the frame body 6 to improve the use effect. The present application is an improvement on the existing technology. Therefore, the frame body 6 is an application of the existing technology, and its specific structure will not be described in detail here.

[0021] Specifically, the fixed installation components include a fixed roller assembly frame 4 and a plurality of fixed roller T-shaped bolts 5. The fixed roller assembly frame 4 is installed at the top side edge of the frame body 6. The plurality of fixed roller T-shaped bolts 5 are all arranged on the fixed roller assembly frame 4, and the plurality of fixed roller T-shaped bolts 5 are connected to the frame body 6.

[0022] In this embodiment: multiple fixed roller T-shaped bolts 5 fix multiple fixed roller assembly frames 4 on the frame body 6 to ensure the use effect, and multiple fixed roller shafts 13 are evenly installed on the fixed roller assembly frame 4 to ensure the use effect.

[0023] Specifically, the positioning components include: A driving assembly, provided on the frame body 6, for controlling the position adjustment of the plurality of movable rollers 12; A connecting assembly is disposed on the driving assembly and connected to the frame body 6; and The moving assembly is disposed on the frame body 6 and is connected to the connecting assembly to enable the overall movement of the plurality of movable rollers 12 .

[0024] In this embodiment: the driving component is installed on the frame body 6 through the connecting component, and the moving component is controlled by the driving component to be connected and used to achieve the use effect.

[0025] Specifically, the driving component is an opening and closing control hydraulic cylinder 1, and the opening and closing control hydraulic cylinder 1 is installed in the frame body 6 near the center of one end edge.

[0026] In this embodiment: the model of the opening and closing control hydraulic cylinder 1 can be selected according to the needs and is available on the market. No further details are given here. By extending and retracting the opening and closing control hydraulic cylinder 1, the overall position of the moving component is adjusted by reciprocating push, and the opening or closing control between the multiple movable rollers 12 and the multiple fixed rollers 13 is realized to achieve the use effect.

[0027] Specifically, the connecting assembly includes a frame connecting pin 11 and a vehicle body connecting pin 2, the frame connecting pin 11 is rotatably connected to one end of the opening and closing control hydraulic cylinder 1, and the frame connecting pin 11 is fixedly connected to the frame body 6, and the vehicle body connecting pin 2 is rotatably connected to the other end of the opening and closing control hydraulic cylinder 1.

[0028] In this embodiment: the frame connecting pin 11 and the vehicle body connecting pin 2 are respectively installed at both ends of the opening and closing control hydraulic cylinder 1, so that the opening and closing control hydraulic cylinder 1 will not produce an angle influence with the frame body 6 and the moving component during the extension and retraction process, thereby improving the flexibility during use.

[0029] Specifically, the moving component is a moving body 3 , the moving body 3 is slidably connected to the frame body 6 , and one end of the body connecting pin 2 is fixedly connected to the moving body 3 .

[0030] In this embodiment: the mobile vehicle body 3 is moved and adjusted on the frame body 6 by opening and closing the hydraulic cylinder 1 to control the movement and adjustment of multiple movable rollers 12.

[0031] Specifically, the movable installation components include a movable roller assembly frame 7 and multiple movable roller T-shaped bolts 8. The movable roller assembly frame 7 is fixedly connected to the mobile vehicle body 3. The multiple movable roller T-shaped bolts 8 are all arranged on the movable roller assembly frame 7, and the multiple movable roller T-shaped bolts 8 are all connected to multiple movable roller shafts 12.

[0032] In this embodiment, a plurality of movable roller T-shaped bolts 8 are used to mount a plurality of movable roller assembly frames 7 on the movable roller assembly frames 7, and the plurality of movable roller assembly frames 7 are evenly distributed to ensure the use effect.

[0033] Specifically, each slider 9 is provided with a plurality of hexagon socket bolts 10 , and the plurality of hexagon socket bolts 10 are connected to the frame body 6 .

[0034] In this embodiment, a plurality of hexagon socket bolts 10 enable a plurality of slide blocks 9 to be adjustably mounted on the frame body 6 to ensure the use effect.

[0035] When in use, the opening and closing control hydraulic cylinder 1 pulls the moving car body 3 to make the movable roller assembly frame 7 and the fixed roller assembly frame 4 move away from each other, thereby controlling the multiple movable roller shafts 12 and the multiple fixed roller shafts 13 to be in an open state, and the strip passes through in the open state and reaches the coiler. After the coiler bites into the strip, the opening and closing control hydraulic cylinder 1 pushes the moving car body 3 to make the movable roller assembly frame 7 and the fixed roller assembly frame 4 move closer to each other, thereby controlling the multiple movable roller shafts 12 and the multiple fixed roller shafts 13 to be in a closed state, clamping the strip to achieve straightening of the strip, and winding is completed, and the above actions are repeated.

[0036] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0037] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A strip straightening device, characterized in that: include: Frame body (6); A fixing mechanism is arranged on the frame body (6) and is used for limiting the position during the strip straightening process, the fixing mechanism comprising a fixing mounting component and four fixing rollers (13), the fixing component being arranged on the frame body (6), and the four fixing rollers (13) being arranged on the mounting component at equal distances; A movable mechanism is arranged on the frame body (6) and is used for adjusting the gap during the strip straightening process, the movable mechanism comprising a positioning component, a movable mounting component and three movable roller shafts (12), the positioning component is arranged on the frame body (6), the movable mounting component is arranged on the positioning component, and the three movable roller shafts (12) are arranged on the movable mounting component at equal distances; and A plurality of sliders (9) are provided, and the plurality of sliders (9) are all mounted on one side of the outer surface of the frame body (6).

2. A strip straightening device according to claim 1, characterized in that: The fixed installation component comprises a fixed roller assembly frame (4) and a plurality of fixed roller T-shaped bolts (5); the fixed roller assembly frame (4) is installed at a top side edge of a frame body (6); the plurality of fixed roller T-shaped bolts (5) are all arranged on the fixed roller assembly frame (4), and the plurality of fixed roller T-shaped bolts (5) are connected to the frame body (6).

3. A strip straightening device according to claim 1, characterized in that: The positioning component comprises: A driving assembly, arranged on the frame body (6), for controlling the position adjustment of the plurality of movable rollers (12); A connecting component is arranged on the driving component, and the connecting component is connected to the frame body (6); and The moving component is arranged on the frame body (6), and the moving component is connected to the connecting component, so as to enable the overall movement of the plurality of movable rollers (12).

4. A strip straightening device according to claim 1, characterized in that: The driving component is an opening and closing control hydraulic cylinder (1), and the opening and closing control hydraulic cylinder (1) is installed in the frame body (6) near the center of one end edge.

5. A strip straightening device according to claim 1, characterized in that: The connection assembly comprises a frame connection pin (11) and a vehicle body connection pin (2), wherein the frame connection pin (11) is rotatably connected to one end of an opening and closing control hydraulic cylinder (1), and the frame connection pin (11) is fixedly connected to a frame body (6), and the vehicle body connection pin (2) is rotatably connected to the other end of the opening and closing control hydraulic cylinder (1).

6. A strip straightening device according to claim 1, characterized in that: The moving component is a moving vehicle body (3), the moving vehicle body (3) is slidably connected to the frame body (6), and one end of the vehicle body connecting pin (2) is fixedly connected to the moving vehicle body (3).

7. A strip straightening device according to claim 1, characterized in that: The movable mounting component comprises a movable roller assembly frame (7) and a plurality of movable roller T-shaped bolts (8); the movable roller assembly frame (7) is fixedly connected to the moving vehicle body (3); the plurality of movable roller T-shaped bolts (8) are all arranged on the movable roller assembly frame (7); and the plurality of movable roller T-shaped bolts (8) are all connected to a plurality of movable roller shafts (12).

8. A strip straightening device according to claim 1, characterized in that: Each of the sliding blocks (9) is provided with a plurality of hexagon socket bolts (10), and the plurality of hexagon socket bolts (10) are connected to the frame body (6).

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