Anti-scratch re-shearing device for aluminum strip production

Abstract

The utility model belongs to the technical field of aluminum strip production, and discloses an anti-scratch re-shearing device for aluminum strip production, which comprises a controller, a sensor, an upper knife rest, an upper shearing blade, a lower knife rest, a lower shearing blade, an upper lifting positioning mechanism for driving the upper knife rest to move up and down, and a lower lifting positioning mechanism for driving the lower knife rest to move up and down, the upper knife rest is provided with a sliding plate which is adjusted in a lifting mode through a screw rod, transverse plates are arranged at the two ends of the sliding plate and connected with supporting plates, a lifting roller is arranged between the two supporting plates, locking bolts are arranged at the connecting positions of the transverse plates and the supporting plates, and a receding groove is formed in the position, corresponding to the movable area of the lifting roller, of the upper side of the lower knife rest. The anti-scratch heavy shearing device is provided with the anti-scratch roller and the lifting roller, the lower tool rest is effectively prevented from making contact with an aluminum strip in the shearing process, the problem that the surface of the aluminum strip is scratched is completely eradicated, the relative position of the lifting roller can be flexibly adjusted according to the thickness of the aluminum strip to be sheared, and applicability is higher.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum strip production technology, specifically relating to an anti-scratch re-cutting device for aluminum strip production. Background Technology

[0002] Heavy shearing is widely used in hot rolling production lines for aluminum strip. During the hot rough rolling process of aluminum ingots, the ingots are repeatedly rolled by the rolling mill, resulting in a fishtail-shaped sandwich layer on the longitudinal vertical split surface. This sandwich layer will have a negative impact on subsequent processing steps. Therefore, when the strip thickness reaches a certain level, the head and tail sandwich layers need to be removed in time by heavy shearing.

[0003] When shearing thick aluminum sheets, the sheets are conveyed to the heavy shearing area by a transport roller conveyor. The upper and lower shearing blades are positioned on the upper and lower surfaces of the sheet, respectively. The upper blade is locked near the upper surface of the strip, while the lower blade moves upward under the push of a hydraulic cylinder. The shear blades mounted on the upper and lower blades then cut the aluminum sheet. During shearing, the lower surface of the sheet comes into contact with the lower blade under the influence of gravity. During the cutting process, there is a certain relative movement between the aluminum sheet and the lower blade. This movement, under the influence of enormous shearing force, scratches the lower surface of the aluminum sheet.

[0004] When a scratched strip enters the next rolling pass, the scratch marks will be imprinted on the working rolls of the rolling mill, and the working rolls will then imprint them on the strip, causing surface quality defects in the metal strip and resulting in huge economic losses for the company. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides an anti-scratch re-shearing device for aluminum strip production. It aims to solve the problem that when the lower blade holder comes into contact with and rubs against the lower surface of the strip during re-shearing to remove the head and tail layers of the aluminum strip, scratches will occur on the lower surface of the strip, resulting in nearly a kilometer of surface quality defects in subsequent processing steps.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] A scratch-resistant heavy-duty shearing device for aluminum strip production includes a controller, a sensor, an upper blade holder, an upper shear blade, a lower blade holder, a lower shear blade, an upper lifting and positioning mechanism for driving the upper blade holder to move up and down, and a lower lifting and positioning mechanism for driving the lower blade holder to move up and down. The sensor detects the relative distance between the upper and lower shear blades and the aluminum strip to be sheared. The sensor, the upper lifting and positioning mechanism, and the lower lifting and positioning mechanism are all electrically connected to the controller. Two mounting seats are fixedly connected to the side of the lower blade holder away from the lower shear blade, and an anti-scratch roller is installed between the two mounting seats. Limited openings are provided on the upper blade holder. A sliding plate is slidably connected within the limiting through groove, and a screw threadedly connected to the sliding plate is rotatably connected within the limiting through groove. A knob is fixedly connected to the upper tool holder through the upper end of the screw. Horizontal plates are fixedly connected to both the front and rear ends of the sliding plate, and the horizontal plates are perpendicular to the sliding plate. A support plate is rotatably connected to the end of each horizontal plate away from the sliding plate. A lifting roller is provided between the two support plates. Locking bolts are provided at the connection between the horizontal plates and the support plates to fix the support plates and the horizontal plates. A relief groove is provided on the upper side of the lower tool holder corresponding to the movable area of ​​the lifting roller.

[0008] Furthermore, the mounting base includes a support base and a pressure plate. The mounting holes of the support base and the pressure plate are rectangular and cooperate with the connecting shafts at both ends of the anti-friction roller. The pressure plate is connected to the support base by screws.

[0009] This structural design prevents the anti-friction roller from rotating and facilitates its replacement.

[0010] Furthermore, the upper edge of the anti-friction roller is 1-2 mm higher than the lower knife holder.

[0011] This structural design effectively prevents the lower blade holder from contacting the aluminum strip during shearing, thus eliminating scratches on the aluminum strip surface.

[0012] Beneficial effects:

[0013] This utility model relates to an anti-scratch heavy shearing device for aluminum strip production. It is equipped with an anti-scratch roller and a lifting roller, which effectively prevents the lower blade holder from contacting the aluminum strip during shearing, thereby eliminating the problem of scratches on the surface of the aluminum strip. The relative position of the lifting roller can be flexibly adjusted according to the thickness of the aluminum strip to be sheared, making it more versatile. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the anti-scratch re-shearing device for aluminum strip production according to the present invention;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0017] The attached diagram is labeled as follows: Upper blade holder 1, Upper shear blade 2, Lower blade holder 3, Lower shear blade 4, Anti-friction roller 5, Support seat 6, Pressure plate 7, Slide plate 8, Screw 9, Horizontal plate 10, Support plate 11, Lifting roller 12, Retreat groove 13, Aluminum strip 14, Fish tail 15, Conveyor roller conveyor 16. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0019] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0020] Heavy shears: Heavy-duty "scissors" used to cut thick plates during the production process, installed on the conveyor roller 16.

[0021] Surface finish: The roughness of the surface of a part.

[0022] like Figures 1-3As shown, this utility model discloses an anti-scratch heavy shearing device for aluminum strip production, including a controller, a sensor, an upper blade holder 1, an upper shear blade 2, a lower blade holder 3, a lower shear blade 4, an upper lifting and positioning mechanism for driving the upper blade holder 1 to move up and down, and a lower lifting and positioning mechanism for driving the lower blade holder 3 to move up and down. The upper shear blade 2 is located at the lower right end of the upper blade holder 1, and the lower shear blade 4 is located at the upper left end of the lower blade holder 3. The sensor is used to detect the relative distance between the upper shear blade 2, the lower shear blade 4 and the aluminum strip to be sheared. The sensor, the upper lifting and positioning mechanism, and the lower lifting and positioning mechanism are all electrically connected to the controller. Two mounting seats are fixedly connected to the right side of the lower blade holder 3, and an anti-scratch roller 5 is installed between the two mounting seats. The anti-scratch roller 5 is parallel to the conveyor roller 16 of the aluminum strip 14. The upper tool holder 1 has a limiting groove, and a slide plate 8 is slidably connected in the limiting groove. A screw 9, which is threadedly connected to the slide plate 8, is rotatably connected in the limiting groove. A knob is fixedly connected to the upper tool holder 1 through the upper end of the screw 9. Horizontal plates 10 are fixedly connected to both the front and rear ends of the slide plate 8. The horizontal plates 10 are perpendicular to the slide plate 8. A support plate 11 is rotatably connected to the left end of each horizontal plate 10. A lifting roller 12 is set between the two support plates 11. Locking bolts are set at the connection between the horizontal plate 10 and the support plate 11. The locking bolts are used to fix the support plate 11 and the horizontal plate 10. A relief groove 13 is opened on the upper side of the lower tool holder 3 corresponding to the moving area of ​​the lifting roller 12.

[0023] As a preferred embodiment, the mounting base includes a support base 6 and a pressure plate 7. The mounting holes of the support base 6 and the pressure plate 7 are rectangular and cooperate with the rectangular connecting shafts at both ends of the anti-friction roller 5. The pressure plate 7 is connected to the support base 6 by screws.

[0024] As a preferred embodiment, the upper edge of the anti-friction roller 5 is 31-2mm higher than the lower knife holder.

[0025] As a preferred embodiment, the surface finish of both the anti-scratch roller 5 and the lifting roller 12 is higher than 0.8. The anti-scratch roller 5 forms only a smooth thin line when it comes into contact with the aluminum plate, which will not affect the surface quality of the product.

[0026] When using the heavy shearing device of this utility model to cut the fishtail 15 of aluminum strip 14, the upper blade holder 1 is first driven to move down close to the conveyor roller 16 by the upper lifting and positioning mechanism. Then, the knob is rotated, which drives the screw 9 to rotate, thereby driving the integrally formed slide plate 8 and cross plate 10 to move down until the upper edge of the lifting roller 12 is level with the conveyor roller 16. Then, the aluminum strip 14 to be cut is moved along the conveyor roller 16 so that the fishtail 15 of the aluminum strip 14 extends past the cutting point of the upper shear blade 2 and the lower shear blade 4. After that, according to the thickness of the aluminum strip 14, the relative position of the lifting roller 12 is adjusted, that is, the height of the lifting roller 12 is adjusted by rotating the knob, and the left and right positions of the lifting roller 12 are adjusted by rotating the support plate 11. After the position is determined, the locking bolt is tightened. At this time, the lifting roller 12 lifts the aluminum strip 14 close to the upper shear blade 2 to a certain extent, and the lifting height is about 2mm. Then, the lower blade holder 3 is driven upward by the upper and lower lifting positioning mechanism until the lower blade moves upward and engages with the upper blade to complete the shearing of the fishtail 15. During the upward movement of the lower blade holder 3, the anti-scratch roller 5 moves upward synchronously with the lower blade holder 3. When shearing the fishtail 15, the anti-scratch roller 5, which is higher than the upper blade holder 1, also lifts the aluminum strip 14 by 1-2mm. At the same time, the design of the relief groove 13 ensures that the lower blade holder 3 will not affect the lifting roller 12. Under the combined action of the lifting roller 12 and the anti-scratch roller 5, the aluminum strip 14 will not come into contact with the lower blade holder 3 during the shearing process. The lower blade holder 3 will not scratch the lower surface of the aluminum sheet, and the high-gloss lifting roller 12 and anti-scratch roller 5 will only form a smooth thin line when in contact with the aluminum sheet, which will not affect the surface quality of the product.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A scratch-resistant heavy-cutting device for aluminum strip production, comprising a controller, a sensor, an upper blade holder (1), an upper shear blade (2), a lower blade holder (3), a lower shear blade (4), an upper lifting and positioning mechanism for driving the upper blade holder to move up and down, and a lower lifting and positioning mechanism for driving the lower blade holder to move up and down, wherein the sensor is used to detect the relative distance between the upper shear blade (2), the lower shear blade (4) and the aluminum strip to be cut, and the sensor, the upper lifting and positioning mechanism, and the lower lifting and positioning mechanism are all electrically connected to the controller, characterized in that: Two mounting seats are fixedly connected to the side of the lower blade holder (3) away from the lower shear blade (4). An anti-friction roller (5) is installed between the two mounting seats. A limit groove is opened on the upper blade holder (1). A slide plate (8) is slidably connected in the limit groove. A screw (9) threadedly connected to the slide plate (8) is rotatably connected in the limit groove. A knob is fixedly connected to the upper blade holder (1) through the upper blade holder (9). Horizontal plates (10) are fixedly connected to both the front and rear ends of the slide plate (8). The horizontal plate (10) is perpendicular to the slide plate (8). The end of the horizontal plate (10) away from the slide plate (8) is rotatably connected to a support plate (11). A lifting roller (12) is provided between the two support plates (11). A locking bolt is provided at the connection between the horizontal plate (10) and the support plate (11). The locking bolt is used to fix the support plate (11) and the horizontal plate (10). A relief groove (13) is provided on the upper side of the lower blade holder (3) corresponding to the moving area of ​​the lifting roller (12).

2. The anti-scratch re-shearing device for aluminum strip production according to claim 1, characterized in that: The mounting base includes a support base (6) and a pressure plate (7). The mounting holes of the support base (6) and the pressure plate (7) are rectangular and cooperate with the connecting shafts at both ends of the anti-friction roller (5). The pressure plate (7) is connected to the support base (6) by screws.

3. The anti-scratch re-shearing device for aluminum strip production according to claim 2, characterized in that: The upper edge of the anti-friction roller (5) is 1-2 mm higher than the lower knife holder (3).

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