Positioning and cutting equipment for slitting flat steel

Abstract

This utility model relates to a positioning and cutting device for slitting flat steel. It is characterized by comprising a frame and a connecting frame. The frame has symmetrically arranged upwardly extending connecting portions, and a connecting shaft is provided between the two connecting portions. One end of the connecting frame is fitted onto the outer circumference of the connecting shaft, and the other end serves as a connecting end connected to a pressure roller. Multiple pressure blades are arranged at intervals along the axial direction of the pressure roller on its outer circumference. A unwinding roller is located below the pressure roller for mounting steel coils. A hydraulic cylinder is mounted on the frame and rotatably connected to it. The output end of the hydraulic cylinder is rotatably connected to the connecting frame. The hydraulic cylinder drives the connecting frame to rotate, causing the pressure blades to press indentations onto the surface of the steel coil. This utility model has the following advantages and effects: it can improve the smoothness of steel plate cutting, ensure a flat cut surface, and guarantee the cutting quality of the steel plate.

Description

Technical Field

[0001] This utility model relates to the field of flat steel processing technology, specifically to a positioning and cutting device for longitudinal shearing of flat steel. Background Technology

[0002] Currently, most home appliance casings are made of steel plates. To facilitate the storage and transportation of these steel plates, they need to be rolled into coils. Therefore, during processing, the coiled steel plates must first be conveyed to the cutting equipment via a conveying device. Depending on the processing requirements, the cutting of steel plates is mainly divided into two types: cross-cutting and longitudinal cutting. In the longitudinal cutting process, the high-speed rotation of the shearing rollers drives the blades mounted on the shearing rollers and spaced apart to rotate at high speed, thereby cutting the steel plate into multiple strips.

[0003] For example, Chinese patent document CN218926389U discloses a shearing mechanism for a steel plate slitting machine, including a shearing section. The shearing section includes a frame and two shearing rollers rotatably mounted on the frame. The two shearing rollers are arranged parallel to each other vertically. Several cutters are provided on the shearing rollers. A cleaning mechanism is provided on one side of the shearing section. The cleaning mechanism has two sets and is respectively arranged on the sides of the two shearing rollers. The cleaning mechanism includes a fixed shaft, which is arranged parallel to the shearing rollers along the axial direction of the shearing rollers. Both ends of the fixed shaft are fixedly mounted on the frame. Multiple sliding components are arranged sequentially on the fixed shaft. Each sliding component is slidably engaged with the fixed shaft. Each sliding component has a wiping cotton on the side near the cutter, and the wiping cotton on each sliding component is in contact with the side wall of the corresponding cutter.

[0004] By setting a cleaning mechanism on one side of the shearing roller, each cutter is paired with a wiping cotton to wipe the cutter in real time, causing the adhering debris to fall off and avoiding any impact on the cutting quality. However, in actual use, it was found that when cutting thicker steel plates or when the rotation speed of the shearing roller is slow, the steel plate is not cut smoothly enough by simply rotating the shearing roller, resulting in an uneven cut surface. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a positioning and cutting device for slitting flat steel, which can improve the smoothness of steel plate cutting, ensure the flatness of the steel plate cutting surface, and guarantee the cutting quality of the steel plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning and cutting device for slitting flat steel, comprising a frame and a connecting frame. The frame is symmetrically provided with upwardly extending connecting parts, and a connecting shaft is provided between the two connecting parts. One end of the connecting frame is fitted onto the outer circumference of the connecting shaft, and the other end serves as a connecting end. The connecting end is connected to a pressure roller. The outer circumference of the pressure roller is provided with multiple pressure knives spaced apart from each other along the axial direction of the pressure roller. Below the pressure roller is a unwinding roller, which is used to hold the steel coil. The frame is provided with a hydraulic cylinder, which is rotatably connected to the frame. The output end of the hydraulic cylinder is rotatably connected to the connecting frame. The hydraulic cylinder drives the connecting frame to rotate, so that the pressure knives press indentations on the surface of the steel coil.

[0007] The present invention is further configured such that: the outer periphery of the pressure roller is provided with a sliding groove, the sliding groove is a plurality of grooves and is evenly distributed around the circumference, the sliding groove is provided with a slidable mounting seat, the mounting seat is provided with a connecting groove, and the pressure blade is detachably connected to the connecting groove.

[0008] The present invention is further configured such that: the pressure knife is provided with a through first connecting hole, and the mounting base is provided with a through second connecting hole, the second connecting hole communicating with the connecting groove and being opposite to the first connecting hole.

[0009] The present invention is further configured such that: the frame is provided with symmetrical connecting flanges, and a rotating shaft is provided between the two connecting flanges; the bottom of the hydraulic cylinder is fixed with a connecting seat, and the connecting seat is fitted onto the outer periphery of the rotating shaft.

[0010] The present invention is further configured such that the connecting end is located on the side facing the pressure roller and extends in the direction towards the unwinding roller.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By using a pressure roller and pressure blade, when the downstream cutting equipment longitudinally shears the steel coil, a hydraulic cylinder drives the connecting frame to rotate. This allows the pressure roller connected to the connecting end to move towards the steel coil mounted on the unwinding roller. The pressure blades on the outer periphery of the pressure roller then press against the steel coil, creating indentations on the surface of the steel coil. This effectively reduces the required cutting thickness of the steel after it is guided to the subsequent cutting equipment, improving the smoothness of the steel plate cutting. Therefore, this effectively solves the technical problem in existing technologies where cutting thicker steel plates is often not smooth enough. It ensures a flat cut surface, guarantees the cutting quality of the steel plate, and the resulting downward-concave indentations also help to position the cutting path of the blades in the subsequent cutting equipment, preventing the blades from shifting during high-speed rotation of the shearing rollers and thus further improving the cutting quality of the steel plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the specific structure of the pressure roller in this utility model;

[0015] Figure 3 This is a schematic diagram of the specific structure of the pressure knife in this utility model. Detailed Implementation

[0016] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] like Figures 1 to 3As shown, this utility model discloses a positioning and cutting device for slitting flat steel, including a frame 1 and a connecting frame 2. The frame 1 has symmetrically arranged upwardly extending connecting portions 21, and a connecting shaft 3 is provided between the two connecting portions 21. One end of the connecting frame 2 is fitted onto the outer circumference of the connecting shaft 3, and the other end serves as a connecting end, connected to a pressure roller 4. Multiple pressure knives 5 are arranged at intervals along the axial direction of the pressure roller 4 on the outer circumference of the pressure roller 4. Below the pressure roller 4 is a unwinding roller 6, used for mounting steel coils. A hydraulic cylinder 7 is provided on the frame 1, rotatably connected to the frame 1, and its output end is rotatably connected to the connecting frame 2. The hydraulic cylinder 7 drives the connecting frame 2 to rotate, causing the pressure knives 5 to press indentations onto the surface of the steel coil. When the downstream cutting equipment slits the steel coil, the hydraulic cylinder... The cylinder 7 drives the connecting frame 2 to rotate, so that the pressure roller 4 connected to the connecting end can move toward the steel coil mounted on the uncoiling roller 6. In this way, the pressure blades 5 on the outer periphery of the pressure roller 4 can press against the steel coil, thereby creating indentations on the surface of the steel pulled out of the coil. Therefore, after the steel is pulled to the subsequent cutting equipment, the required cutting thickness of the steel can be reduced in a disguised way, so as to improve the smoothness of the steel plate cutting. This ensures that the steel plate cutting surface is flat and guarantees the cutting quality of the steel plate. Furthermore, the downward concave indentations generated can also play a certain role in positioning the cutting path of the blade in the subsequent cutting equipment, preventing the blade from shifting during the high-speed rotation of the shearing roller in the subsequent cutting equipment, thus changing the cutting path of the blade and further improving the cutting quality of the steel plate.

[0019] Furthermore, it should be noted that the connection between the pressure cutter roller 54 and the connecting end can be either a rotatable connection or a fixed connection. In a rotatable connection, the pressure cutter roller 4 can be driven to rotate during the outward pulling of the steel coil. The friction generated between the pressure cutter 5 and the steel coil is rolling friction, which facilitates the outward pulling of the steel. However, this causes the force exerted by the pressure cutter 5 on the steel coil to change in real time, resulting in a shallower indentation. Conversely, in a fixed connection, the friction generated between the pressure cutter 5 and the steel coil is sliding friction, ensuring that the force exerted by the pressure cutter 5 on the steel coil does not change, thus facilitating the formation of a deeper indentation on the steel surface. However, this also results in greater frictional force on the steel during outward pulling, making it less convenient to pull the steel. In summary, the specific connection method between the pressure cutter roller 54 and the connecting end can be determined according to the specific usage environment.

[0020] In this embodiment, the connection structure between the pressure knife 5 and the pressure knife roller 4 is as follows: a sliding groove 41 is provided on the outer periphery of the pressure knife roller 4. There are multiple sliding grooves 41 and they are evenly distributed around the circumference. A slidable mounting seat 8 is provided in the sliding groove 41. A connecting groove 81 is provided on the mounting seat 8. The pressure knife 5 is detachably connected to the connecting groove 81. In this way, by sliding the mounting seat 8, the distance between adjacent pressure knives 5 can be adjusted to meet more usage needs. After the mounting seat 8 is slid to a suitable position, the pressure knife 5 can be fixed by connecting it to the connecting groove 81, which makes the installation of the pressure knife 5 more convenient.

[0021] In this embodiment, the connection structure between the pressure knife 5 and the mounting base 8 is as follows: the pressure knife 5 has a through first connecting hole 51, and the mounting base 8 has a through second connecting hole. The second connecting hole communicates with the connecting groove 81 and can be opposite to the first connecting hole 51. Therefore, after the pressure knife 5 is pressed into the connecting groove 81, the fixing between the pressure knife 5 and the mounting base 8 can be completed by passing the bolt 100 through the first connecting hole 51 and the second connecting hole and then screwing in the nut 200. In addition, in order to ensure the connection stability between the mounting base 8 and the pressure knife 5 roller 4, the mounting base 8 has first threaded holes on both sides of the connecting groove 81, and multiple second threaded holes are provided in the sliding groove 41 of the pressure guide roller. In this way, after the first threaded hole and the second threaded hole are opposite to each other, the locking member 300 that can form a threaded engagement with the first threaded hole and the second threaded hole can be screwed in to complete the fixing of the mounting base 8.

[0022] In this embodiment, the connection structure between the hydraulic cylinder 7 and the frame 1 is as follows: symmetrical connecting flanges 9 are provided on the frame 1, and a rotating shaft is provided between the two connecting flanges 9. A connecting seat 71 is fixed at the bottom of the hydraulic cylinder 7 and the connecting seat 71 is fitted onto the outer periphery of the rotating shaft. Therefore, when the hydraulic cylinder 7 drives the connecting frame 2 to rotate, the hydraulic cylinder 7 can rotate accordingly to avoid interference.

[0023] In this embodiment, the connecting end is located on the side facing the pressure roller 5 and extends in the direction towards the unwinding roller 6. This makes it easier for the pressure roller 5 to approach the steel coil on the unwinding roller 6, thereby facilitating the pressure blade 5 on the pressure roller 5 to press the steel coil.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A positioning and cutting device for longitudinal shearing of flat steel, characterized in that, The device includes a frame and a connecting frame. The frame has symmetrically arranged upwardly extending connecting parts, and a connecting shaft is provided between the two connecting parts. One end of the connecting frame is fitted onto the outer circumference of the connecting shaft, and the other end serves as a connecting end. The connecting end is connected to a pressure roller. The outer circumference of the pressure roller is provided with multiple pressure knives that are spaced apart from each other along the axial direction of the pressure roller. Below the pressure roller is an unwinding roller, which is used to hold the steel coil. The frame is equipped with a hydraulic cylinder, which is rotatably connected to the frame. The output end of the hydraulic cylinder is rotatably connected to the connecting frame. The hydraulic cylinder drives the connecting frame to rotate, so that the pressure knives press indentations on the surface of the steel coil.

2. The positioning and cutting device for slitting flat steel according to claim 1, characterized in that, The outer circumference of the pressure roller is provided with a sliding groove, and there are multiple sliding grooves evenly distributed around the circumference. A sliding mounting seat is provided in the sliding groove, and a connecting groove is provided on the mounting seat. The pressure blade is detachably connected to the connecting groove.

3. The positioning and cutting device for slitting flat steel according to claim 2, characterized in that, The pressure knife is provided with a through first connecting hole, and the mounting base is provided with a through second connecting hole. The second connecting hole communicates with the connecting groove and can be opposite to the first connecting hole.

4. The positioning and cutting device for slitting flat steel according to claim 1, characterized in that, The frame is symmetrically provided with connecting flanges, and a rotating shaft is provided between the two connecting flanges. The bottom of the hydraulic cylinder is fixed with a connecting seat, and the connecting seat is fitted onto the outer circumference of the rotating shaft.

5. A positioning and cutting device for slitting flat steel according to claim 1, characterized in that, The connecting end is located on the side facing the pressure roller and extends in the direction toward the unwinding roller.

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