A device for straightening a steel coil

Abstract

The application discloses a kind of straightening device of steel coil, including base, the base is provided with pay-off mechanism and straightening mechanism, the straightening mechanism includes first support roller and second support roller, first support roller and second support roller are provided with straightening steel band between, and straightening steel band is cyclically wound between first support roller and second support roller, first support roller and second support roller are connected with driving mechanism, and driving mechanism is provided with clutch mechanism between support roller, can guarantee the straightening effect of big curvature steel band, without subsequent to the valve piece is flattened, improve the production efficiency of valve piece.

Description

Technical Field

[0001] This invention belongs to the field of valve plate processing technology, and more specifically relates to a straightening device for steel coils used in valve plate stamping. Background Technology

[0002] The production and processing of metal valve plates involves stamping the shape of the valve plate onto a steel plate using stamping technology, and then forming the finished product through surface treatment, heat treatment and other processes. The stamped steel plate is generally made from steel coils.

[0003] Since a flat steel plate is required during stamping, the steel coil needs to be leveled by a straightening device before it can enter the stamping equipment for stamping. Currently, the most common straightening structures include one or more deflecting wheels and multiple sets of straightening wheels (such as the patent technologies disclosed in CN219335423U and CN213728652U). The steel plate can be made flat by the reverse bending action of the deflecting wheels and the multiple straightening actions of the straightening wheels. The straightened steel plate is then sent into the stamping equipment for stamping.

[0004] Since steel coils are made by rolling continuous long steel plates, the curvature of the steel plate is greater closer to the center of the coil, meaning the degree of bending per unit arc length is greater. However, current straightening devices cannot adjust the straightening effect on the steel plate according to the change in the curvature of the steel coil during continuous straightening of the same steel coil. This results in different straightening effects on the outside and inside of the steel coil. Therefore, a leveling process for the valve plate needs to be added during the production of valve plates, which reduces the production efficiency of valve plates. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a straightening device for steel coils that can ensure the straightening effect on steel strips with large curvatures, eliminating the need for subsequent leveling of valve plates and improving valve plate production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a straightening device for steel coils, comprising a base, wherein a wire feeding mechanism and a straightening mechanism are provided on the base, the straightening mechanism comprising a first support roller and a second support roller, a straightening steel strip being provided between the first support roller and the second support roller, and the straightening steel strip being circulated and wound between the first support roller and the second support roller, both the first support roller and the second support roller being connected to a driving mechanism, and a clutch mechanism being provided between the driving mechanism and the support roller.

[0007] Furthermore, the base is provided with several support columns, and a transition support roller is rotatably connected to the support columns, the transition support roller being in contact with the straightening steel strip.

[0008] Furthermore, the wire feeding mechanism includes two wire feeding support rollers and a pressure roller support rod. The wire feeding support rollers are slidably connected to the base, and a pressure roller is provided on the pressure roller support rod. The pressure roller and the pressure roller support rod are rotatably and vertically connected.

[0009] Furthermore, the wire feeding support roller is rotatably connected to the slider, the slider is slidably connected to the base, a guide rod is provided between the two sliders, the slider is slidably connected to the guide rod, a spring is provided on the guide rod, and the spring is located between the two sliders.

[0010] Furthermore, the straightening device also includes several straightening groups, each of which includes a first support block and a second support block. Each of the first and second support blocks is provided with several corresponding straightening rollers, and the distance between the first and second support blocks can be adjusted between them.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a straightening steel strip between the first support roller and the second support roller, during straightening, most of the straightening steel strip is wound on the first support roller, and as the steel coil is continuously unwound, the straightening steel strip on the first support roller is also released and wound on the second support roller. The continuous unwinding increases the curvature of the steel strip on the steel coil, while the winding diameter of the straightening steel strip on the first support roller gradually decreases, thereby ensuring the straightening effect on the large curvature steel strip, eliminating the need for subsequent leveling of the valve plate, and improving the production efficiency of the valve plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the steel coil straightening device of the present invention;

[0013] Figure 2 This is a schematic diagram of the straightening mechanism in the steel coil straightening device of the present invention;

[0014] Figure 3 This is a schematic diagram of the wire feeding mechanism in the straightening device for steel coils of the present invention.

[0015] Reference numerals: 1. Base; 2. First support roller; 3. Second support roller; 4. Straightening steel strip; 5. Wire feeding support roller; 6. Pressure roller support rod; 7. Support column; 8. Pressure roller; 9. Lifting block; 10. Electric telescopic rod; 11. Slider; 12. Guide rod; 13. Spring; 14. First support block; 15. Second support block; 16. Steel coil; 17. Transition support roller. Detailed Implementation

[0016] In the description of this invention, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this invention, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0018] Reference Figures 1 to 3 The present invention will be further described below.

[0019] A straightening device for steel coils includes a base 1, on which a wire feeding mechanism and a straightening mechanism are provided. The straightening mechanism includes a first support roller 2 and a second support roller 3. A straightening steel strip 4 is provided between the first support roller 2 and the second support roller 3, and the straightening steel strip 4 is cyclically wound between the first support roller 2 and the second support roller 3. Both the first support roller 2 and the second support roller 3 are connected to a driving mechanism, and a clutch mechanism is provided between the driving mechanism and the support roller.

[0020] In this preferred embodiment, the drive mechanism can use a common motor, with the motor spindle connected to the support roller via a transmission connection. The clutch mechanism is a clutch mechanism in the prior art, which can disconnect or connect the transmission between the motor and the support roller.

[0021] like Figure 1 and Figure 2 As shown in this embodiment, preferably, the base 1 is provided with a plurality of support columns 7, and a transition support roller 17 is rotatably connected to the support columns 7, and the transition support roller 17 is in contact with the straightening steel belt 4.

[0022] like Figure 1 and Figure 3 As shown in the preferred embodiment, the wire feeding mechanism includes two wire feeding support rollers 5 and a pressure roller support rod 6. The wire feeding support rollers 5 are slidably connected to the base 1, and a pressure roller 8 is provided on the pressure roller support rod 6. The pressure roller 8 and the pressure roller support rod 6 are rotatably and vertically connected.

[0023] like Figure 3 As shown in this preferred embodiment, the pressure roller support rod 6 is slidably connected to a lifting block 9, and an electric telescopic rod 10 is provided between the lifting block 9 and the pressure roller support rod 6. The pressure roller 8 is rotatably connected to the lifting block 9. As the steel strip on the steel coil 16 is released, the electric telescopic rod 10 drives the lifting block 9 to gradually descend, so that the pressure roller 8 is always pressed tightly on the steel coil 16.

[0024] like Figure 3 As shown, in this preferred embodiment, the wire feeding support roller 5 is rotatably connected to the slider 11, the slider 11 is slidably connected to the base 1, and a guide rod 12 is provided between the two sliders 11. The slider 11 and the guide rod 12 are slidably connected, and a spring 13 is provided on the guide rod 12. The spring 13 is located between the two sliders 11. When a fully wound steel coil 16 is placed on the wire feeding support roller 5, the two wire feeding support rollers 5 slide to both sides respectively, so that the spring 13 is stretched and generates elastic force. As the steel coil 16 releases the steel strip, its weight is reduced, and the tension of the spring 13 pulls the slider 11 and makes the two wire feeding support rollers 5 move closer to each other.

[0025] like Figure 2 As shown in the preferred embodiment, the straightening device further includes several straightening groups, each including a first support block 14 and a second support block 15. Both the first support block 14 and the second support block 15 are provided with several corresponding straightening rollers, and the distance between the first support block 14 and the second support block 15 can be adjusted.

[0026] like Figure 2 As shown, in this preferred embodiment, the first support roller 2 can be supported to rotate by a support rod, and the second support roller 3 can be supported to rotate by a support roller with the same structure as the wire feeding support roller 5.

[0027] like Figure 2 As shown in the preferred embodiment, a support platform can be provided on the base 1, and the first support block 14 and the second support block 15 can be slidably connected to the support platform and connected to the drive mechanism for adjusting the spacing.

[0028] like Figures 1 to 3 As shown, before straightening, the first support roller 2 is connected to the drive mechanism via a clutch mechanism, and the second support roller 3 is disconnected from the drive mechanism via a clutch mechanism. The drive mechanism connected to the first support roller 2 drives the first support roller 2 to rotate, and the straightening steel strip 4 is wound around the first support roller 2. As the number of winding turns increases, the winding diameter of the straightening steel strip 4 on the first support roller 2 becomes larger until it is equivalent to the diameter of the steel coil 16 to be straightened. Then the first support roller 2 is disconnected from the drive mechanism, and the second support roller 3 is connected to the drive mechanism.

[0029] Then the steel coil 16 is placed on two wire feeding support rollers 5. The two wire feeding rollers slide to both sides under gravity, stretching the middle spring 13 to generate tension. The pressure roller 8 presses on the wire feeding end of the steel coil 16. The steel strip passes through one set of straightening groups and the straightening steel strip 4 wound on the first support roller 2 in sequence, then passes through another straightening group and extends into the stamping equipment.

[0030] When the stamping equipment starts stamping the valve plate, it pulls the straightened steel strip, which in turn drives the steel coil 16 on the wire feeding support roller 5 to rotate. The drive mechanism connected to the second support roller 3 drives the second support roller 3 to rotate, and winds the straightened steel strip 4 onto the second support roller 3, thereby reducing the winding diameter of the straightened steel strip 4 on the first support roller 2. Its speed is comparable to the wire feeding speed of the steel coil 16.

[0031] In this way, as the steel coil 16 is continuously unwound, the curvature of the steel strip on the steel coil 16 increases, while the winding diameter of the straightening steel strip 4 on the first support roller 2 gradually decreases, thereby ensuring the straightening effect on the large curvature steel strip, eliminating the need for subsequent leveling of the valve plate, and improving the production efficiency of the valve plate.

[0032] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A straightening device for steel coils, characterized in that: The device includes a base, on which a wire feeding mechanism and a straightening mechanism are provided. The straightening mechanism includes a first support roller and a second support roller. A straightening steel strip is provided between the first support roller and the second support roller, and the straightening steel strip is circulated and wound between the first support roller and the second support roller. Both the first support roller and the second support roller are connected to a driving mechanism, and a clutch mechanism is provided between the driving mechanism and the first support roller and the second support roller. The wire feeding mechanism includes two wire feeding support rollers and a pressure roller support rod. The wire feeding support rollers are slidably connected to the base, and a pressure roller is provided on the pressure roller support rod. The pressure roller and the pressure roller support rod are rotatably and vertically connected. Before straightening, the first support roller is connected to the drive mechanism through a clutch mechanism, and the second support roller is disconnected from the drive mechanism through a clutch mechanism. The drive mechanism connected to the first support roller drives the first support roller to rotate, and the straightening steel strip is wound on the first support roller. As the number of winding turns increases, the winding diameter of the straightening steel strip on the first support roller becomes larger until it is equivalent to the diameter of the steel coil to be straightened. Then the first support roller is disconnected from the drive mechanism, and the second support roller is connected to the drive mechanism. The steel coil on the unwinding support roller rotates, and the drive mechanism connected to the second support roller drives the second support roller to rotate, winding the straightening steel strip onto the second support roller, thereby reducing the winding diameter of the straightening steel strip on the first support roller. As the steel coil continues to unwind, the curvature of the steel strip on the steel coil increases, and the winding diameter of the straightening steel strip on the first support roller gradually decreases.

2. The straightening device for steel coils according to claim 1, characterized in that: The base is provided with several support columns, and a transition support roller is rotatably connected to the support columns. The transition support roller is in contact with the straightening steel strip.

3. The straightening device for steel coils according to claim 1, characterized in that: The wire feeding support roller is rotatably connected to the slider, the slider is slidably connected to the base, a guide rod is provided between the two sliders, the slider is slidably connected to the guide rod, a spring is provided on the guide rod, and the spring is located between the two sliders.

4. The straightening device for steel coils according to claim 1, characterized in that: The straightening device further includes several straightening groups, each of which includes a first support block and a second support block. Each of the first and second support blocks is provided with several corresponding straightening rollers, and the distance between the first and second support blocks can be adjusted between them.

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