A wide-width squeeze roll and squeeze device for aluminum alloy strip

Abstract

The utility model discloses a kind of wide squeeze dry roller and be used for squeezing dry device of aluminum alloy strip, wide squeeze dry roller includes squeeze dry upper roller and squeeze dry lower roller, squeeze dry upper roller and squeeze dry lower roller are symmetrically arranged, squeeze dry upper roller and squeeze dry lower roller all include shaft core and the roller sleeve of being sleeved on shaft core, the roller sleeve outer surface on squeeze dry upper roller is double parabola roller shape structure, the roller sleeve outer surface on squeeze dry lower roller is single parabola roller shape structure;Squeeze dry device, including wide squeeze dry roller and rack, and wide squeeze dry roller is located on rack.The utility model is by being set into single parabola roller shape structure to squeeze dry lower roller, squeeze dry upper roller is designed into double parabola roller shape structure, the roller shape of protruding in squeeze dry lower roller middle can offset the downwarp deformation generated in squeeze dry lower roller working state, two pressure enhancement zones are formed when squeeze dry upper roller is pressed down Double wave height position, and increased pressure ensures that wide strip rib part can be effectively squeezed dry, so that wide squeeze dry roller can flexibly, efficiently process different width of strip.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum alloy strip production equipment, specifically to a wide-width extrusion roller and an extrusion device for aluminum alloy strip. Background Technology

[0002] During the cold rolling process, aluminum alloy strip will produce a large amount of aluminum powder and rolling oil on its surface. Before subsequent processes such as heat treatment, these contaminants must be thoroughly removed by a cleaning machine. The cleaning machine usually uses water-based or oil-based cleaning fluid. After cleaning, the residual liquid on the surface of the strip needs to be squeezed off by the squeeze roller to ensure the cleanliness and dryness of the strip.

[0003] Currently, most squeezing rollers used in cleaning machines are flat rollers. However, when producing narrow strips with limited width, a long area of ​​the squeezing roller surface is not covered by the strip and remains suspended. Under the influence of its own weight and the air (or hydraulic) pressure at both ends, the middle of the squeezing roller undergoes significant downward deformation, resulting in poor contact between the roller surface and the middle of the narrow strip, insufficient squeezing pressure, poor squeezing effect in this area, and serious liquid residue. Furthermore, during the production of narrow strips, the area on the squeezing roller corresponding to the edge of the narrow strip will develop permanent indentations due to long-term concentrated pressure. When the production line switches to producing wider wide strips, the ribs of the wide strip, i.e., the positions in its width direction corresponding to the original edge of the narrow strip, pass through this area of ​​indentations. Because the roller surface at the indentation cannot effectively adhere to the strip, the rib area is not thoroughly squeezed, resulting in cleaning liquid residue and affecting product quality. Summary of the Invention

[0004] The main purpose of this utility model is to overcome the defects of the above-mentioned background technology and provide a wide-width extrusion roller and an extrusion device for aluminum alloy strip.

[0005] To achieve the above objectives, this utility model proposes a wide-width squeezing roller, including an upper squeezing roller and a lower squeezing roller. The upper squeezing roller and the lower squeezing roller are arranged symmetrically, with a gap reserved between them for aluminum alloy strip to pass through. Both the upper squeezing roller and the lower squeezing roller include a shaft and a roller sleeve fitted on the shaft. The outer surface of the roller sleeve on the upper squeezing roller has a double parabolic roller shape structure, and the outer surface of the roller sleeve on the lower squeezing roller has a single parabolic roller shape structure.

[0006] To further optimize the technical solution, the convexity of the double parabolic roller structure is 0.2-0.5mm and the wave height is located at 1 / 4 and 3 / 4 of the roller sleeve, and the convexity of the single parabolic roller structure is 0.7-1.0mm and the wave height is located at 1 / 2 of the roller sleeve.

[0007] The technical solution is further optimized so that the length of the roller sleeve is ≥2000mm.

[0008] To further optimize the technical solution, the outer periphery of the shaft core is provided with a longitudinally extending spline, and the inner wall of the central hole of the roller sleeve is provided with a keyway corresponding to the spline.

[0009] To further optimize the technical solution, the outer circumference of both ends of the spline is provided with external threads, and clamping nuts are connected to the external threads. The opposite faces of the clamping nuts on both sides abut against the end faces of the roller sleeve.

[0010] This utility model also proposes a squeezing device for aluminum alloy strip, including the above-mentioned wide squeezing roller and frame. The wide squeezing roller is disposed on the frame. A first mounting seat and a second mounting seat are respectively provided on both sides of the frame. The lower squeezing roller of the wide squeezing roller is rotatably disposed on the first mounting seat, and the upper squeezing roller of the wide squeezing roller is rotatably disposed on the second mounting seat.

[0011] To further optimize the technical solution, the first mounting base includes a first guide rail, a first slider, and a lifting adjustment bolt. The first guide rail is fixed to both ends of the frame, and the first slider is slidably connected to the first guide rail. The two ends of the shaft of the squeezing roller are rotatably mounted on the two first sliders. The lower middle part of both ends of the frame is provided with a first support rod. The first support rod has a screw hole that cooperates with the lifting adjustment bolt. The lifting adjustment bolt passes vertically through the screw hole and its top end is rotatably connected to the bottom of the first slider.

[0012] To further optimize the technical solution, the first mounting base also includes a linkage shaft. The two ends of the linkage shaft are rotatably mounted on the first slider and are parallel to the shaft core. The two ends of the linkage shaft are respectively connected to the lifting adjustment bolt through a bevel gear set.

[0013] To further optimize the technical solution, an adjustment handwheel is provided at the bottom end of the lifting and adjusting bolt.

[0014] To further optimize the technical solution, the second mounting base includes a second guide rail, a second slider, and a lifting cylinder. The second guide rail is fixed to both ends of the frame, and the second slider is slidably connected to the second guide rail. The two ends of the shaft of the upper extrusion roller are rotatably mounted on the two second sliders. The top two ends of the frame are provided with second support rods laterally. The lifting cylinder is fixed on the second support rods, and the telescopic end of the lifting cylinder passes vertically through the second support rods and is connected to the second slider.

[0015] The beneficial effects of this utility model include: by setting the lower extrusion roller as a single parabolic roller structure that is thicker in the middle and thinner at both ends, the raised roller shape in the middle can counteract the downward deflection generated by the lower extrusion roller during the extrusion of narrow aluminum alloy strip, so that the effective working surface of the roller sleeve can be evenly attached to the surface of the narrow strip, applying uniform pressure, thereby solving the problem of poor extrusion effect in the middle of the narrow strip; by designing the upper extrusion roller as a double parabolic roller structure with two wave heights at 1 / 4 and 3 / 4 of the roller sleeve, made of aluminum alloy... When narrow strip is converted into wide strip, the width of the wide strip covers the entire roller surface of the roll sleeve. At this time, the rib of the wide strip (corresponding to the edge position of the original narrow strip) corresponds exactly to the wave height position (1 / 4 and 3 / 4) of the upper extrusion roller 1. When the upper extrusion roller presses down, the wave height position forms two pressure enhancement zones. The increased pressure ensures that the rib can be effectively squeezed. Even if there are slight historical roll marks at this position, the stronger pressure can compensate for the defect of poor contact, so that the wide extrusion roller can flexibly and efficiently handle strips of different widths. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the wide-width extrusion roller in an embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the installation of the roller sleeve and the shaft core in an embodiment of this utility model.

[0018] Figure 3 This is an overall schematic diagram of the squeezing device in an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the squeezing device after the frame has been removed in an embodiment of this utility model.

[0020] Reference numerals: 1 Upper squeeze roller; 2 Lower squeeze roller; 3 Shaft core; 301 Spline; 302 External thread; 303 Clamping nut; 4 Roller sleeve; 5 Frame; 6 First mounting base; 601 First guide rail; 602 First slider; 603 Lifting adjustment bolt; 604 First support rod; 605 Screw hole; 606 Linkage shaft; 607 Bevel gear set; 608 Adjusting handwheel; 7 Second mounting base; 701 Second guide rail; 702 Second slider; 703 Lifting cylinder; 704 Second support rod. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of the embodiments of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Example

[0025] Please see Figures 1 to 2In one embodiment, a wide-width squeezing roller is disclosed, including an upper squeezing roller 1 and a lower squeezing roller 2. The upper squeezing roller 1 and the lower squeezing roller 2 are arranged symmetrically, and a gap is reserved between the upper squeezing roller 1 and the lower squeezing roller 2 for aluminum alloy strip to pass through. Both the upper squeezing roller 1 and the lower squeezing roller 2 include a shaft core 3 and a roller sleeve 4 fitted on the shaft core 3. The outer surface of the roller sleeve 4 on the upper squeezing roller 1 has a double parabolic roller shape structure, and the outer surface of the roller sleeve 4 on the lower squeezing roller 2 has a single parabolic roller shape structure. Specifically, the roller sleeve 4 is made of polyurethane material, and the convexity of the double parabolic roller structure is 0.2-0.5mm, with the wave height located at 1 / 4 and 3 / 4 of the roller sleeve 4, for example, the convexity is 0.2mm, 0.3mm, 0.4mm or 0.5mm, preferably 0.4mm; the convexity of the single parabolic roller structure is 0.7-1.0mm, with the wave height located at 1 / 2 of the roller sleeve 4, for example, the convexity is 0.7mm, 0.8mm, 0.9mm or 1.0mm, preferably 0.9mm; the length dimension of the roller sleeve 4 is ≥2000mm, and the length dimension of the shaft core 3 is greater than the length dimension of the roller sleeve 4, so that both ends of the shaft core 3 are exposed at the installation position. In this embodiment, by setting the lower extrusion roller 2 as a single parabolic roller structure that is thicker in the middle and thinner at both ends, the raised roller shape in the middle can counteract the downward deflection generated by the lower extrusion roller 2 during the extrusion of narrow aluminum alloy strip, so that the effective working surface of the roller sleeve 4 can be evenly attached to the surface of the narrow strip and apply uniform pressure, thereby solving the problem of poor extrusion effect in the middle of the narrow strip; by designing the upper extrusion roller 1 as a double parabolic roller structure with two wave heights at 1 / 4 and 3 / 4 of the roller sleeve 4, when producing narrow aluminum alloy strip, the uncovered areas at the edges of the upper extrusion roller 1 and the lower extrusion roller 2 form roller marks due to long-term pressure, which are then converted into production When using wide aluminum alloy strips, the strip width almost covers the entire roller surface of the roller sleeve 4. At this time, the ribs of the wide strip (corresponding to the original narrow strip edge position) are exactly at the wave height position (1 / 4 and 3 / 4) of the upper extrusion roller 1. When the upper extrusion roller 1 presses down, the wave height position forms two pressure enhancement zones. The increased pressure ensures that the ribs can be effectively extruded. Even if there are slight historical roller marks at this position, the stronger pressure can compensate for the defects of poor contact. This allows the wide extrusion roller to adaptively compensate for roller deformation and achieve effective pressure control in key areas, thereby ensuring excellent and stable extrusion effect for strips of various widths and guaranteeing product quality.

[0026] In a specific example, a spline 301 extending longitudinally along the length of the shaft core 3 is provided on the outer periphery of the shaft core 3, and a keyway 401 corresponding to the spline 301 is provided on the inner wall of the center hole of the roller sleeve 4. When the roller sleeve 4 is fitted on the outer periphery of the shaft core 3, the relative rotation of the shaft core 3 and the roller sleeve 4 is prevented by the cooperation of the spline 301 and the keyway 401, thus ensuring the coaxiality of the roller sleeve 4 and the shaft core 3.

[0027] In a specific example, external threads 302 are provided on the outer circumference of both ends of the spline 301, and clamping nuts 303 are connected to the external threads 302. The opposing surfaces of the clamping nuts 303 on both sides abut against the end faces of the roller sleeve 4. The clamping nuts 303 tightly clamp the roller sleeve 4 at the designated axial position of the shaft core 3, eliminating axial clearance and making the roller sleeve 4 and the shaft core 3 a rigid whole in the axial direction, thus preventing the roller sleeve 4 from moving axially. Example

[0028] Please see Figures 1 to 4 This embodiment discloses a squeezing device for aluminum alloy strip. The squeezing device includes the wide squeezing roller and frame 5 mentioned above. The wide squeezing roller is mounted on the frame 5. A first mounting seat 6 and a second mounting seat 7 are respectively provided on both sides of the frame 5. The lower squeezing roller 2 of the wide squeezing roller is rotatably mounted on the first mounting seat 6, and the upper squeezing roller 1 of the wide squeezing roller is rotatably mounted on the second mounting seat 7. Specifically, the frame 5 is a rectangular frame structure. There are two sets of first mounting seats 6 and two sets of second mounting seats 7. The two sets of first mounting seats 6 are arranged symmetrically from left to right. Similarly, the two sets of second mounting seats 7 are arranged symmetrically from left to right. The two sets of first mounting seats 6 are located directly below the two sets of second mounting seats 7. The two ends of the lower squeezing roller 2 are rotatably mounted between the two sets of first mounting seats 6. The two ends of the upper squeezing roller 1 are rotatably mounted between the two sets of second mounting seats 7. The aluminum alloy strip to be squeezed passes between the lower squeezing roller 2 and the upper squeezing roller 1 and is clamped between the two. The aluminum powder and rolling oil generated on the surface of the aluminum alloy strip during the cold rolling process, or the water or cleaning oil remaining after cleaning the aluminum powder and rolling oil on the surface, are squeezed out when passing through the wide squeezing roller.

[0029] In a specific example, the first mounting base 6 includes a first guide rail 601, a first slider 602, and a lifting adjustment bolt 603. The first guide rail 601 is fixed at both ends of the frame 5, and the first slider 602 is slidably connected to the first guide rail 601. The two ends of the shaft core 3 of the squeezing roller 2 are rotatably mounted on the two first sliders 602. The lower middle part of both ends of the frame 5 is provided with a first support rod 604. A screw hole 605 that cooperates with the lifting adjustment bolt 603 is opened on the first support rod 604. After the lifting adjustment bolt 603 passes vertically through the screw hole 605, its top end is rotatably connected to the bottom of the first slider 602. Specifically, each set of first mounting bases 6 is equipped with two first guide rails 601. Both first guide rails 601 are linear guide rail structures and are arranged symmetrically front and back. The front and rear sides of the first slider 602 are respectively provided with guide rail grooves. The guide rail grooves on both sides cooperate with the two first guide rails 601, so that the first slider 602 can only move vertically up and down along the first guide rail 601. By rotating the lifting adjustment bolts 603 at both ends, the first sliders 602 at both ends are driven to rise and fall along the first guide rail 601, thereby driving the entire extrusion lower roller 2 to rise or fall for adjustment.

[0030] In a preferred embodiment, the first mounting base 6 further includes a linkage shaft 606. The two ends of the linkage shaft 606 are rotatably mounted on the first sliders 602 at both ends and are parallel to the shaft core 3. The two ends of the linkage shaft 606 are respectively connected to the lifting adjustment bolt 603 through a bevel gear set 607. The bottom end of the lifting adjustment bolt 603 is provided with an adjustment handwheel 608. Without the linkage shaft 606, when the operator adjusts the squeezing lower roller 2 for raising and lowering, it is necessary to rotate the lifting adjustment bolts 603 at both ends separately and independently. It is also difficult to ensure that the number of rotations at both ends is completely consistent, which can easily cause one end of the squeezing lower roller 2 to rise faster than the other end, resulting in the squeezing lower roller 2 tilting. The linkage shaft 606 mechanically connects the two lifting adjustment bolts 603 together through the bevel gear set 607. When the operator rotates the input adjustment handwheel 608 on either side, the power is synchronously transmitted to the bevel gear set 607 and the lifting bolts 603 at both ends through the linkage shaft 606, ensuring that the number of rotations and the angle of the lifting bolts 603 at both ends are always completely consistent. This drives the first sliders 602 at both ends to rise or fall in strict synchronization, so that the squeezing lower roller 2 always rises and falls horizontally.

[0031] In a specific example, the second mounting base 7 includes a second guide rail 701, a second slider 702, and a lifting cylinder 703. The second guide rail 701 is fixed to both ends of the frame 5, and the second sliders 702 are slidably connected to the second guide rail 701. The two ends of the shaft core 3 of the upper squeeze roller 1 are rotatably mounted on the two second sliders 702. The top two ends of the frame 5 are provided with second support rods 704 laterally. The lifting cylinder 703 is fixed to the second support rods 704, and the telescopic end of the lifting cylinder 703 passes vertically through the second support rods 704 and connects to the second sliders 702. The lifting cylinder 703 is connected to an external air source. Specifically, each set of second mounting bases 7 has two second guide rails 701. The two second guide rails 701 are both linear guide rail structures, and the two second guide rails 701 are arranged symmetrically front and back. The front and rear sides of the second slider 702 are also provided with guide rail grooves, which cooperate with the two second guide rails 701 respectively, so that the second slider 702 can only move vertically up and down along the second guide rails 701. By rotating the lifting cylinders 703 at both ends, the two sliders 702 at both ends are driven to rise and fall along the second guide rails 701, thereby driving the entire extrusion upper roller 1 to rise or fall for adjustment, so as to adjust the pressure on the aluminum alloy strip. Of course, the lifting cylinders 703 can also be replaced with hydraulic cylinders or electric telescopic rods, as long as they can provide the driving power for the extrusion upper roller 1 to rise and fall.

[0032] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the concept of the present invention, and all such substitutions or modifications should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope of protection of the patent application.

Claims

1. A wide-width extrusion roller, characterized in that: It includes an upper extrusion roller and a lower extrusion roller, which are arranged symmetrically on top of each other and a gap is reserved between them for aluminum alloy strip to pass through. Both the upper extrusion roller and the lower extrusion roller include a shaft and a roller sleeve fitted on the shaft. The outer surface of the roller sleeve on the upper extrusion roller has a double parabolic roller shape structure, and the outer surface of the roller sleeve on the lower extrusion roller has a single parabolic roller shape structure.

2. The wide-width extrusion roller as described in claim 1, characterized in that: The convexity of the double parabolic roller structure is 0.2-0.5 mm and the wave height is located at 1 / 4 and 3 / 4 of the roller sleeve. The convexity of the single parabolic roller structure is 0.7-1.0 mm and the wave height is located at 1 / 2 of the roller sleeve.

3. The wide-width extrusion roll as described in claim 2, characterized in that: The length of the roller sleeve is ≥2000mm.

4. The wide-width extrusion roller as described in claim 3, characterized in that: The outer periphery of the shaft core is provided with a longitudinally extending spline, and the inner wall of the central hole of the roller sleeve is provided with a keyway corresponding to the spline.

5. The wide-width extrusion roller as described in claim 4, characterized in that: The outer circumference of both ends of the spline is provided with external threads, and clamping nuts are connected to the external threads. The opposite faces of the clamping nuts on both sides abut against the end faces of the roller sleeve.

6. An extrusion apparatus for aluminum alloy strip, characterized in that: Includes the wide-width squeezing roller and frame as described in any one of claims 1 to 5, wherein the wide-width squeezing roller is disposed on the frame, and a first mounting seat and a second mounting seat are respectively provided on both sides of the frame, the lower squeezing roller of the wide-width squeezing roller is rotatably disposed on the first mounting seat, and the upper squeezing roller of the wide-width squeezing roller is rotatably disposed on the second mounting seat.

7. The squeezing apparatus as described in claim 6, characterized in that: The first mounting base includes a first guide rail, a first slider, and a lifting adjustment bolt. The first guide rail is fixed to both ends of the frame, and the first slider is slidably connected to the first guide rail. The two ends of the shaft of the squeezing roller are rotatably mounted on the two first sliders. The lower middle part of both ends of the frame is provided with a first support rod. The first support rod has a screw hole that cooperates with the lifting adjustment bolt. The lifting adjustment bolt passes vertically through the screw hole and its top end is rotatably connected to the bottom of the first slider.

8. The squeezing apparatus as described in claim 7, characterized in that: The first mounting base also includes a linkage shaft, the two ends of which are rotatably mounted on the first slider and parallel to the shaft core. The two ends of the linkage shaft are respectively connected to the lifting adjustment bolt through a bevel gear set.

9. The squeezing apparatus as described in claim 8, characterized in that: The bottom end of the lifting and adjusting bolt is equipped with an adjusting handwheel.

10. The squeezing apparatus as described in claim 9, characterized in that: The second mounting base includes a second guide rail, a second slider, and a lifting cylinder. The second guide rail is fixed to both ends of the frame, and the second slider is slidably connected to the second guide rail. The two ends of the shaft of the upper extrusion roller are rotatably mounted on the two second sliders. The top two ends of the frame are provided with second support rods laterally. The lifting cylinder is fixed on the second support rods, and the telescopic end of the lifting cylinder passes vertically through the second support rods and is connected to the second slider.

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