Guiding device and system for drum-type flying shear

Abstract

The utility model discloses a guiding device and system for a drum-type flying shear, and belongs to the field of steel rolling mechanical equipment. The device comprises a support, an outlet guide plate, a guide piece and a pressing plate. The outlet guide plate is mounted on the support, the guide sheet is provided with a first part and a second part, the first part is stacked on one side, close to the drum-type flying shear, of the outlet guide plate, the second part protrudes out of the edge of the outlet guide plate, and the edge of the second part is a straight edge. The pressing plate is located above the guide piece and fixes at least one part of the guide piece to the outlet guide plate. According to the guide device, the independent guide piece is arranged above the outlet guide plate, the gap between the guide device and the lower roller can be changed by independently adjusting the installation position of the guide piece, strip steel can be effectively prevented from penetrating into the gap, and the gap adjustment is more flexible. The system has effects similar to those of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling machinery and equipment, and more specifically to a guiding device and system for a drum-type flying shear. Background Art

[0002] In the cold-rolled strip production line, flying shears, as the core equipment technology, are essential for the continuous production of strip steel. Different types of flying shears have their own characteristics. Among them, the drum flying shear has become the most widely used type of flying shear due to its unique structure and performance. Compared with other types of flying shears, the structure of the drum flying shear is relatively simple. During the shearing process, the upper and lower drums of the flying shear make circular motions, and the shear blades installed in the drums make shearing motions with the rotation of the drums to cut the strip steel. The side clearance of the shear blades can be adjusted by adjusting the device to meet the shearing requirements of strip steel of different specifications. In addition, the dynamic load of the drum flying shear is small and the equipment is light, which makes it more reliable in continuous production and can adapt to various production environments and conditions. In the cold-rolled strip production line, the continuous running speed of the strip steel is high, so the flying shear needs to be able to adapt to high-speed shearing. The simple circular motion design of the drum flying shear enables it to easily cope with the shearing task of high-speed strip steel, thereby improving production efficiency and product quality. In addition, the advantages of the drum flying shear, such as long service life, low maintenance cost and simple operation, also make it popular in the market, providing a strong guarantee for the efficient and stable operation of the cold-rolled strip production line.

[0003] There is usually a strip guide device on the outlet side of the drum flying shear, which is used to guide the sheared strip to the belt conveyor. Figure 1 and Figure 2 As shown, the edge of the guide plate P of the current outlet side guide device near the end of the lower roller G of the flying shear is designed with a concave-convex shape, and the maximum gap D1 is 3.6mm. When the flying shear shearing effect is not good, it will cause the two corners of the strip head to bend and deform, causing the strip to penetrate into the gap D1 between the guide plate P and the lower roller G of the flying shear, causing the strip to accumulate and cause equipment extrusion damage. In addition, since the minimum gap D2 between the guide plate P and the lower roller G is 0.4mm, when the strip penetrates the gap between the two, the guide plate P needs to be removed as a whole to remove the accumulated strip, forcing the unit to shut down to handle the fault, which has the disadvantages of being difficult to recover and taking a long time.

[0004] Therefore, there is still much room for improvement in the existing guiding devices and systems of drum-type flying shears. Utility Model Content

[0005] The utility model aims to provide a guiding device and a system for a drum-type flying shear.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] According to one aspect of the utility model, there is provided a guiding device for a drum-type flying shear, comprising:

[0008] Support;

[0009] an outlet guide plate mounted on the support;

[0010] A guide plate having a first portion superimposed on a side of the outlet guide plate close to the drum-type flying shear and a second portion protruding beyond an edge of the outlet guide plate, wherein an edge of the second portion is a straight edge;

[0011] A pressure plate is located above the guide blade and fixes at least a portion of the guide blade to the outlet guide plate.

[0012] According to an embodiment of the utility model, the upper surface of the outlet guide plate is inclined relative to the horizontal plane, and the side close to the drum-type flying shear is lower than the side away from the drum-type flying shear.

[0013] According to an embodiment of the present invention, the inclination angle is 15-25°.

[0014] According to an embodiment of the utility model, the width of the guide piece is equal to the width of the outlet guide plate, and the width direction is perpendicular to the running direction of the strip.

[0015] According to an embodiment of the present invention, the pressing plate is located in the middle part of the guide piece in the width direction.

[0016] According to one embodiment of the present invention, the device comprises a plurality of pressing plates, which are arranged at intervals in the middle portion of the guide piece.

[0017] According to an embodiment of the utility model, the distance between the two farthest edges of the two pressing plates that are farthest apart is smaller than the minimum width of the strip processed by the drum-type flying shear.

[0018] According to an embodiment of the present invention, the thickness of the guide plate is not less than 2 mm, and the guide plate and the pressure plate are detachably connected to the outlet guide plate.

[0019] According to another aspect of the utility model, a drum-type flying shear system is provided, comprising:

[0020] A guiding device as described above; and

[0021] A drum-type flying shear comprises an upper drum and a lower drum;

[0022] The guiding device is located at the outlet side of the drum-type flying shear, a first gap is provided between the outlet guide plate of the guiding device and the lower drum, a second gap is provided between the guide plate and the pressure plate of the guiding device and the lower drum, and the first gap is larger than the second gap.

[0023] According to an embodiment of the present invention, the first gap is 20 mm, and the second gap is 1 mm.

[0024] Due to the adoption of the above technical solution, the guiding device for the drum-type flying shear provided by the utility model has at least one of the following beneficial effects compared with the prior art:

[0025] (1) The guide device of the utility model is provided with an independent guide piece above the exit guide plate, and the gap between the guide device and the lower roller can be changed by adjusting the installation position of the guide piece alone, which can not only effectively prevent the strip from penetrating into the gap, but also make the gap adjustment more flexible;

[0026] (2) The guide plate is used as a component to withstand the impact of the strip steel. When it is damaged, only the guide plate can be replaced without replacing the exit guide plate, which reduces the maintenance cost and maintenance time;

[0027] (3) A pressure plate is arranged above the guide plate to prevent the guide plate from bulging in the middle and colliding with the strip steel, and at the same time reduce the impact of the end of the strip steel on the guide plate, thereby playing a role in protecting and making the strip steel transition.

[0028] The drum type flying shear system provided by the utility model also has the beneficial effects corresponding to the guiding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0030] Figure 1 A top view of a drum-type flying shear and an outlet side guide plate according to the prior art is shown;

[0031] Figure 2 A side view of a drum-type flying shear and an outlet side guide plate according to the prior art is shown;

[0032] Figure 3 A side view of a guide device for a drum-type flying shear according to an embodiment of the utility model is shown;

[0033] Figure 4 A top view of a guide device for a drum-type flying shear according to an embodiment of the utility model is shown;

[0034] Figure 5 A side view of a drum-type flying shear system according to an embodiment of the utility model is shown;

[0035] Figure 6 A top view of a drum-type flying shear system according to an embodiment of the utility model is shown;

[0036] Figure 7 A partial enlarged view of a drum-type flying shear system according to an embodiment of the utility model is shown.

[0037] List of reference numerals:

[0038] P, guide plate; G, lower roller of flying shear; D1, maximum gap between guide plate and lower roller of flying shear; D2, minimum gap between guide plate and lower roller of flying shear;

[0039] 10. Guide device; 12. Support; 14. Exit guide plate; 16. Guide plate; 18. Pressing plate; 20. Drum-type flying shear; 22. Lower drum. DETAILED DESCRIPTION

[0040] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0041] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as in the embodiments of this application.

[0043] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] One aspect of the utility model provides a guide device for a drum-type flying shear, which generally includes a support, an outlet guide plate, a guide piece and a pressure plate. The outlet guide plate is mounted on the support. The guide piece has a first portion superimposed on a side of the outlet guide plate close to the drum-type flying shear and a second portion protruding beyond the edge of the outlet guide plate, and the edge of the second portion is a straight edge. The pressure plate is located above the guide piece and fixes at least a portion of the guide piece to the outlet guide plate.

[0047] The guide device of the utility model is provided with an independent guide piece above the exit guide plate, and the gap between the guide device and the lower roller can be changed by adjusting the installation position of the guide piece alone, which can not only effectively prevent the strip from penetrating into the gap, but also make the gap adjustment more flexible. The guide piece is used as a component to withstand the impact of the strip. When it is damaged, only the guide piece can be replaced without replacing the exit guide plate, which reduces the maintenance cost and maintenance time. A pressure plate is arranged above the guide piece to prevent the middle arch of the guide piece from colliding with the strip, and at the same time reduce the impact of the end of the strip on the guide piece, which plays a role in protecting and transitioning the strip.

[0048] Figure 3A side view of a guide device 10 for a drum-type flying shear according to a specific embodiment of the utility model is shown. Figure 4 The top view of the guide device 10 is shown. As shown in the figure, the guide device 10 may include a support 12, an outlet guide plate 14, a guide blade 16 and a pressure plate 18.

[0049] The support 12 is used as a base to support the entire device. The support 12 may include two longitudinal beams arranged at intervals, and the extension direction of the longitudinal beams is parallel to the transportation direction of the strip. An outlet guide plate 14 is installed between the two longitudinal beams. The outlet guide plate 14 is generally a flat plate, which has a first end close to the outlet side of the flying shear and a second end away from the outlet side of the flying shear. In order to avoid interference between the outlet guide plate 14 and the lower roller of the flying shear, the edge of the outlet guide plate 14 at the first end is a straight edge.

[0050] A guide piece 16 is provided on the upper surface of the first end of the outlet guide plate 14. The guide piece 16 is used as an adjustment part for adjusting the gap between the guide device 10 and the flying shear, and as a transition part for receiving the strip steel that is quickly removed from the flying shear. For this reason, the width of the guide piece 16 (i.e., the direction perpendicular to the transport direction of the strip steel) is close to the width of the outlet guide plate 14. A part of the guide piece 16 protrudes beyond the edge of the outlet guide plate 14, i.e., compared with the outlet guide plate 14, the edge of the guide piece 16 is closer to the lower roller of the flying shear. Moreover, in order to avoid interference between the guide piece 16 and the lower roller of the flying shear, the edge of the guide piece 16 close to the lower roller of the flying shear is a straight edge, which can also facilitate the gap adjustment. The guide piece 16 is detachably connected to the outlet guide plate 14, for example, the guide piece 16 can be fixed to the outlet guide plate 14 at both ends in the width direction by means of top screws. Since the guide piece 16 is detachably connected to the outlet guide plate 14, the strip threading gap of the device can be changed by adjusting the gap between the guide piece 16 and the lower roller to prevent the strip steel from entering the gap. Since the guide plate 16 is used to receive the high-speed moving strip steel, it needs to have a certain strength. Therefore, in some embodiments, the thickness of the guide plate is not less than 2 mm.

[0051] The pressing plate 18 is arranged on the guide blade 16, and is located in the middle of the guide blade 16 in the width direction. The pressing plate 18 is used to prevent the middle arch of the guide blade 16 from colliding with the strip steel, and at the same time reduce the impact of the end of the strip steel on the guide blade 16, so as to protect the guide blade 16 and make the strip steel transition.

[0052] In some embodiments, the upper surface of the outlet guide plate 14 is inclined relative to the horizontal plane. Specifically, the side of the outlet guide plate 14 close to the drum flying shear is lower than the side away from the drum flying shear, and the angle of inclination can be 15 to 25 degrees. The strip discharged from the drum flying shear moves to the outlet guide plate 14 in a parabolic trajectory. Setting the side of the outlet guide plate 14 close to the drum flying shear lower can make the contact point between the strip and the outlet guide plate 14 move backward (i.e., away from the first end of the outlet guide plate 14), and the contact point is farther from the gap between the outlet guide plate 14 and the lower roller of the flying shear, reducing the risk of the flying shear penetrating the strip.

[0053] In some embodiments, in order to better fix the guide plate 16, the device includes a plurality of pressing plates 18 arranged side by side in the width direction, and adjacent pressing plates 18 are spaced apart by a distance. In this way, the fixing range of the guide plate 16 can be expanded. Furthermore, in order to prevent the strip from being stuck in the groove formed between the pressing plates 18, the distance between the two farthest edges of the two farthest pressing plates 18 is less than the minimum width of the strip processed by the drum-type flying shear. In this way, since the width of the strip is greater than the groove formed by the two farthest pressing plates 18, it will not be stuck between the pressing plates 18.

[0054] Another aspect of the utility model provides a drum flying shear system, which includes the guide device and the drum flying shear as described above. The drum flying shear includes an upper drum and a lower drum, wherein the guide device is located at the outlet side of the drum flying shear, a first gap is provided between the outlet guide plate of the guide device and the lower drum, a second gap is provided between the guide plate and the pressure plate of the guide device and the lower drum, and the first gap is larger than the second gap.

[0055] Figure 5 A side view of a drum-type flying shear system according to a specific embodiment of the utility model is shown. Figure 6 shows a top view of the system, Figure 7 A partial enlarged view of the system is shown. As shown in the figure, the drum-type flying shear 20 includes an upper drum and a lower drum 22. The upper drum and the lower drum 22 are rotatably supported in a bearing frame and can move toward and away from each other. The upper drum and the lower drum 22 are respectively provided with shear blades along their axial directions on their peripheral portions. The strip steel passes through the gap between the upper drum and the lower drum 22. When the strip steel needs to be sheared, the motor drives the upper drum and the lower drum 22 to rotate synchronously in opposite directions and adjusts their rotation speeds to match the moving speed of the strip steel. At the shearing position of the strip blank, the upper drum and the lower drum 22 are instantly and strongly meshed together to shear the strip steel with the shear blades during the movement of the strip blank.

[0056] The guide device 10 for the drum flying shear is located at the outlet side of the drum flying shear 20, and receives the strip steel passing through the gap between the upper roller and the lower roller 22. In order to avoid interference between the outlet guide plate 14 and the lower roller 22, the distance between the two is increased. In some embodiments, the gap between the outlet guide plate 14 and the lower roller 22 is 20 mm. At the same time, in order to prevent the strip steel from penetrating into the gap between the guide device 10 and the drum flying shear 20, the guide plate 16 needs to be set at a position closer to the lower roller 22 to reduce the gap between the guide device 10 and the drum flying shear 20. In some embodiments, the gap between the guide plate 16 and the lower roller 22 is set to 1 mm. Similarly, in order to utilize the pressing plate 18 to receive the strip steel and exert a transition effect. The gap between the pressing plate 18 and the lower roller 22 is also set to 1 mm. In this way, the gap between the upper part of the entire device and the lower roller is 1 mm, and even if the strip steel is deformed, it will not penetrate into the gap. In addition, when the strip steel accidentally penetrates into the gap, only the guide piece 16 or the pressure plate 18 will be damaged. Since the guide piece 16 and the pressure plate 18 are independent structures, the replacement and adjustment operation is very convenient. Therefore, the difficulty of troubleshooting and equipment loss corresponding to such a structure are greatly reduced.

[0057] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0058] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0059] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A guiding device for a drum-type flying shear, characterized in that: include: Support; an outlet guide plate mounted on the support; A guide plate having a first portion superimposed on a side of the outlet guide plate close to the drum-type flying shear and a second portion protruding beyond an edge of the outlet guide plate, wherein an edge of the second portion is a straight edge; A pressure plate is located above the guide blade and fixes at least a portion of the guide blade to the outlet guide plate.

2. The guiding device for a drum-type flying shear according to claim 1, characterized in that: The upper surface of the outlet guide plate is inclined relative to a horizontal plane, and a side close to the drum-type flying shear is lower than a side away from the drum-type flying shear.

3. The guiding device for a drum-type flying shear according to claim 2, characterized in that: The inclination angle is 15 to 25 degrees.

4. The guiding device for a drum-type flying shear according to claim 1, characterized in that: The width of the guide piece is equal to the width of the outlet guide plate, and the width direction is perpendicular to the running direction of the strip.

5. The guiding device for a drum-type flying shear according to claim 4, characterized in that: The pressing plate is located at a middle portion of the guide piece in a width direction.

6. The guiding device for a drum-type flying shear according to claim 5, characterized in that: The device includes a plurality of pressure plates which are spaced apart and arranged at a middle portion of the guide piece.

7. The guiding device for a drum-type flying shear according to claim 6, characterized in that: The distance between the two farthest edges of the two pressing plates which are farthest apart is smaller than the minimum width of the strip processed by the drum-type flying shear.

8. The guiding device for a drum-type flying shear according to claim 1, characterized in that: The thickness of the guide plate is not less than 2 mm, and the guide plate and the pressure plate are detachably connected to the outlet guide plate.

9. A drum-type flying shear system, characterized in that: include: A guiding device as claimed in any one of claims 1 to 8; as well as A drum-type flying shear comprises an upper drum and a lower drum; The guiding device is located at the outlet side of the drum-type flying shear, a first gap is provided between the outlet guide plate of the guiding device and the lower drum, a second gap is provided between the guide plate and the pressure plate of the guiding device and the lower drum, and the first gap is larger than the second gap.

10. The system according to claim 9, characterized in that The first gap is 20 mm, and the second gap is 1 mm.

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