An on-line hot sizing device and method for a large aluminum alloy profile extrusion line

Abstract

The application discloses an online hot shaping device and method of a large aluminum alloy profile extrusion production line, realizes online hot shaping of the large aluminum alloy profile, has good shaping effect, and greatly reduces profile scrapping problems; wherein, the large surface shaping mechanism and the side wall shaping mechanism can be used alone or in cooperation, so that the application range is very large, and the large surface shaping mechanism is particularly suitable for large extrusion production lines; the large surface shaping mechanism is shaped by the cooperation of the fixed roller and the movable roller, so that the transverse position of the large aluminum alloy profile does not need to be adjusted, the large surface shaping mechanism is convenient to use, and the movable roller can be conveniently taken out when not in use, so that interference on profile discharging is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum alloy profile shaping, in particular to an online hot shaping device and method for large aluminum alloy profile extrusion production line. BACKGROUND

[0002] After the aluminum alloy profile extrusion passes through the extrusion die, the required shape is obtained. However, due to the fact that the metal flow rate in the die is greatly affected by various factors, the outer contour size of the aluminum profile after extrusion often fails to meet the requirements.

[0003] For aluminum alloy profiles, when the outer contour size fails to meet the requirements, the offline shaping method is usually used for salvage. Since offline shaping is performed at room temperature, the strength of the aluminum alloy profile is high at this time, and the resistance to deformation is strong, so a large device and a large shaping force are required. Not only does the shaped profile always have some internal stress, but also due to the large shaping force, the profile is often scrapped due to excessive shaping force.

[0004] Therefore, an online shaping method has emerged, which uses graphite blocks to shape the aluminum alloy profile. This method is not suitable for large aluminum alloy profile extrusion production lines, and the friction process between the graphite blocks and the profile will leave graphite marks on the surface of the profile, which not only affects the surface quality of the profile, but also easily damages the graphite, leading to shaping failure and product scrap.

[0005] It is urgent to solve the above problems. SUMMARY

[0006] To solve the technical problem that there is no online hot shaping device suitable for large aluminum alloy profile on the market, the present application provides an online hot shaping device and method for large aluminum alloy profile extrusion production line.

[0007] The technical scheme is as follows:

[0008] An online hot shaping device for large aluminum alloy profile extrusion production line, comprising a discharging table and a large surface shaping mechanism and a side wall shaping mechanism both arranged on the discharging table at the feeding end of the discharging table.

[0009] The large surface shaping mechanism comprises two fixed support seats arranged opposite to each other along the width direction of the discharging table, and fixed rollers and movable rollers both extending along the width direction of the discharging table. The bottom of each fixed support seat is provided with a fixed roller bearing seat, and the two ends of each fixed roller are rotatably installed on the corresponding fixed roller bearing seat. Each fixed support seat is provided with a movable roller bearing seat capable of ascending and descending, and each movable roller bearing seat is located above the adjacent fixed roller bearing seat. The two ends of each movable roller are rotatably installed on the corresponding movable roller bearing seat.

[0010] The side wall shaping mechanism comprises two mounting seats oppositely arranged along the width direction of the discharging table, and a support is arranged on the side of each mounting seat close to the other mounting seat, a vertically extending shaping roller is mounted on the side of each support away from the adjacent mounting seat, and the support can slide along the adjacent mounting seat in the width direction of the discharging table through a sliding fit assembly, and a shaping roller position adjusting assembly for driving the adjacent support to move in the width direction of the discharging table is mounted on each mounting seat.

[0011] An online hot shaping method of a large aluminum alloy profile extrusion production line, comprising the following steps:

[0012] S1, adjusting the large face shaping mechanism, according to the following steps:

[0013] S11, lifting the movable roller, so that the distance between the fixed roller and the movable roller is greater than the thickness of the large aluminum alloy profile;

[0014] S12, passing the large aluminum alloy profile between the fixed roller and the movable roller;

[0015] S13, releasing the movable roller, so that the fixed roller and the movable roller clamp the upper and lower large faces of the large aluminum alloy profile;

[0016] S14, starting the extrusion production line, and observing the shaping effect of the upper and lower large faces of the large aluminum alloy profile: qualified, the extrusion production line keeps running; unqualified, the extrusion production line stops, and step S15 is entered;

[0017] S15, returning to step S14 after adding a counterweight on each movable roller bearing seat;

[0018] S2, adjusting the side wall shaping mechanism, according to the following steps:

[0019] S21, starting the shaping roller position adjusting assembly, so that the two shaping rollers are away from each other to the maximum position;

[0020] S22, passing the large aluminum alloy profile between the two shaping rollers;

[0021] S23, starting the shaping roller position adjusting assembly, so that the two shaping rollers clamp the two side walls in the width direction of the large aluminum alloy profile;

[0022] S24, starting the extrusion production line, and observing the shaping effect of the two side walls in the width direction of the large aluminum alloy profile: qualified, the extrusion production line keeps running; unqualified, the extrusion production line stops, and returns to step S23.

[0023] Compared with the prior art, the beneficial effects of the present application are:

[0024] 1. The online hot sizing device is directly integrated on the large aluminum alloy profile extrusion production line, adopts the online hot sizing mode, and thus the required sizing force and sizing device are smaller, and the sizing effect is better; meanwhile, the offline sizing process is cancelled, and thus the cost caused by offline sizing and the profile scrapping problem possibly occurring in the offline sizing process are eliminated.

[0025] 2. The large face sizing mechanism and the side wall sizing mechanism can be used independently or in cooperation, and thus the application range is extremely wide, and the device is particularly suitable for large extrusion production lines.

[0026] 3. The large face sizing mechanism is sized by the cooperation of the fixed roller and the movable roller, and thus the application range is extremely wide, and thus the transverse position of the large aluminum alloy profile does not need to be adjusted, the device is convenient to use, and meanwhile, the movable roller can be conveniently taken out when not in use, and thus interference to the profile discharging is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 is a structural schematic view of the online hot sizing device;

[0028] Figure 2 Fig. 2 is a structural schematic view of the side wall sizing mechanism;

[0029] Figure 3 Fig. 3 is a structural schematic view of the movable roller bearing seat;

[0030] Figure 4 Fig. 4 is a structural schematic view of the counterweight. DETAILED DESCRIPTION

[0031] The present application is further described below in combination with the embodiments and the drawings.

[0032] As shown in Figure 1 Fig. 1, an online hot sizing device of a large aluminum alloy profile extrusion production line mainly comprises a discharging table 1 and a large face sizing mechanism and a side wall sizing mechanism which are both arranged on the material end of the discharging table 1, wherein the large face sizing mechanism is used for sizing the upper and lower two large faces of the large aluminum alloy profile 18, and the side wall sizing mechanism is used for sizing the two side walls in the width direction of the large aluminum alloy profile 18.

[0033] The discharging table 1 comprises two oppositely arranged ground beams 1a and a plurality of conveying rollers 1b which are uniformly distributed along the ground beams 1a, the two ends of each conveying roller 1b are rotatably installed on the corresponding ground beam 1a through a conveying roller bearing seat 1c, and each conveying roller 1b is used for conveying the large aluminum alloy profile 18, and the structure is simple and reliable, and has good stability.

[0034] Please refer to Figure 1The large surface shaping mechanism comprises two fixed support seats 5 arranged opposite along the width direction of the discharging table 1, and a fixed roller 3 and a movable roller 4 both extending along the width direction of the discharging table 1, the two fixed support seats 5 are vertically fixedly installed at the feeding end of the corresponding beam 1a respectively, and are stable and reliable. The bottom of each of the two fixed support seats 5 is provided with a fixed roller bearing seat 7, the two ends of the fixed roller 3 are rotatably installed on the corresponding fixed roller bearing seat 7 respectively, each of the fixed support seats 5 is provided with a movable roller bearing seat 8 capable of ascending and descending along the same, each movable roller bearing seat 8 is located above the adjacent fixed roller bearing seat 7, and the two ends of the movable roller 4 are rotatably installed on the corresponding movable roller bearing seat 8 respectively. Therefore, the profile is shaped by using the self-weight of the movable roller 4, and when not in use, the movable roller 4 can be conveniently removed, thereby avoiding interference with the discharging of the profile.

[0035] Further, the fixed support seat 5 in the embodiment is preferably a channel steel, therefore, the side of each of the two fixed support seats 5 close to each other is provided with a vertically extending sliding groove 5a, the fixed roller bearing seat 7 is installed at the bottom of the corresponding sliding groove 5a respectively, and the movable roller bearing seat 8 can ascend and descend along the corresponding sliding groove 5a respectively, which is stable and reliable.

[0036] Further, the top of each of the movable roller bearing seats 8 is detachably provided with at least one counterweight 12 capable of ascending and descending along the corresponding sliding groove 5a. Therefore, by installing and adjusting appropriate counterweights 12, the shaping force can be adaptively increased, the shaping quality is ensured, and the versatility is good.

[0037] Further, please refer to Figure 1 , Figure 3 and Figure 4 , the bottom of each of the counterweights 12 is protrusively provided with a positioning protrusion 12a, the top of each of the counterweights 12 is recessively provided with a positioning groove 12b matched with the positioning protrusion 12a, the positioning protrusion 12a of the counterweight 12 located above can be embedded into the positioning groove 12b of the counterweight 12 located below, and the top of each of the movable roller bearing seats 8 is recessively provided with a connecting groove 8a matched with the positioning protrusion 12a, the positioning protrusion 12a of the counterweight 12 located above the movable roller bearing seat 8 can be embedded into the connecting groove 8a of the movable roller bearing seat 8. Through the above design, the counterweights 12 can be conveniently increased or reduced, the quick installation and quick removal of the counterweights 1 are realized, and the reliable installation of the counterweights 12 is ensured, which is simple and reliable.

[0038] Please refer to Figure 1 and Figure 2 , the side wall shaping mechanism comprises two mounting seats 9 arranged opposite along the width direction of the discharging table 1, and the two mounting seats 9 are located at the side of the adjacent fixed support seat 5 away from the beam 1a. In the embodiment, the two mounting seats 9 are fixedly installed around the outlet of the extruder, thereby realizing online hot shaping.

[0039] Each of the two mounting seats 9 is provided with a support 10 on the side close to the adjacent mounting seat 9, and a vertically extending shaping roller 11 is mounted on the side of the support 10 away from the adjacent mounting seat 9. The support 10 can slide along the adjacent mounting seat 9 in the width direction of the discharging table 1 through a sliding fit assembly, and a shaping roller position adjusting assembly is mounted on the mounting seat 9 to drive the adjacent support 10 to move in the width direction of the discharging table 1. Through the cooperation of the shaping roller position adjusting assembly and the sliding fit assembly, the transverse position of the large aluminum alloy profile 18 does not need to be adjusted, which is convenient to use and ensures the shaping reliability of the two side walls of the large aluminum alloy profile 18 in the width direction.

[0040] The sliding fit assembly includes at least one guide rod 13 fixedly mounted on the side of the support 10 close to the adjacent mounting seat 9 and a guide cylinder 14 matched with the corresponding guide rod 13. The guide rod 13 and the guide cylinder 14 extend in the width direction of the discharging table 1. The guide cylinder 14 is mounted on the corresponding mounting seat 9, and each guide rod 13 can slide along the corresponding guide cylinder 14. The structure is simple and reliable, and the sliding fit reliability is high.

[0041] The shaping roller position adjusting assembly includes a lead screw 15 fixedly mounted on the side of the support 10 close to the adjacent mounting seat 9, a planetary roller screw nut 16 fixedly mounted on the mounting seat 9, and a driving module 17 for driving the planetary roller screw nut 16 to rotate. The lead screw 15 extends in the width direction of the discharging table 1, and the planetary roller screw nut 16 is sleeved on the lead screw 15 and forms a screw nut motion pair with the lead screw 15. The cooperation of the planetary roller screw nut 16 and the lead screw 15 not only has good stability, but also has a self-locking function, which avoids the forced movement of the shaping roller and ensures the stability of the shaping.

[0042] The driving module 17 includes a servo motor 17a mounted on the mounting seat 9, a driving synchronous wheel 17b synchronously rotatingly sleeved on the motor shaft of the servo motor 17a, and a driven synchronous wheel 17c synchronously rotating with the planetary roller screw nut 16. The driving synchronous wheel 17b drives the driven synchronous wheel 17c to rotate through a synchronous belt 17d, which ensures the control accuracy of the driving module 17 and further ensures the position accuracy of the shaping roller 11.

[0043] The fixed roller 3, the movable roller 4 and the shaping roller 11 are all coated with high-temperature felt. The high-temperature felt acts on the surface of the profile, which not only has high temperature resistance and is suitable for online hot shaping, but also can effectively reduce the profile damage problem.

[0044] In the embodiment, each sliding fit assembly is provided with two guide rods 13, which are located on the upper and lower sides of the lead screw 15, respectively, to ensure the stability of the sliding fit.

[0045] An online hot shaping method of a large aluminum alloy profile extrusion production line, comprising the following steps:

[0046] S1, adjusting the large face shaping mechanism, according to the following steps:

[0047] S11, lifting the movable roller 4, so that the distance between the fixed roller 3 and the movable roller 4 is greater than the thickness of the large aluminum alloy profile 18;

[0048] S12, passing the large aluminum alloy profile 18 between the fixed roller 3 and the movable roller 4;

[0049] S13, releasing the movable roller 4, so that the fixed roller 3 and the movable roller 4 clamp the upper and lower large faces of the large aluminum alloy profile 18;

[0050] S14, starting the extrusion production line, and observing the shaping effect of the upper and lower large faces of the large aluminum alloy profile 18: qualified, the extrusion production line keeps running; unqualified, the extrusion production line stops and enters step S15;

[0051] S15, returning to step S14 after adding a counterweight 12 on each of the two movable roller bearing seats 8;

[0052] S2, adjusting the side wall shaping mechanism, according to the following steps:

[0053] S21, starting the shaping roller position adjusting assembly, so that the two shaping rollers 11 are far away from each other to the maximum position;

[0054] S22, passing the large aluminum alloy profile 18 between the two shaping rollers 11;

[0055] S23, starting the shaping roller position adjusting assembly, so that the two shaping rollers 11 clamp the two side walls in the width direction of the large aluminum alloy profile 18;

[0056] S24, starting the extrusion production line, and observing the shaping effect of the two side walls in the width direction of the large aluminum alloy profile 18: qualified, the extrusion production line keeps running; unqualified, the extrusion production line stops and returns to step S23.

[0057] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0058] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] Finally, it should be noted that the above description is only for the preferred embodiments of the present application, and those skilled in the art can make various similar modifications under the inspiration of the present application without departing from the purpose and scope of the present application. Such modifications fall within the scope of the present application.

Claims

1. An online hot forming method for a large aluminum alloy profile extrusion production line, characterized in that, It uses an online hot forming device to perform online hot forming on large aluminum alloy profiles. The online hot forming device includes a discharge platform and a large surface forming mechanism and a side wall forming mechanism, both of which are set on the discharge platform. The large-area shaping mechanism includes two fixed support seats arranged opposite each other along the width direction of the discharge platform, and fixed rollers and movable rollers extending along the width direction of the discharge platform. Fixed roller bearing seats are installed at the bottom of the two fixed support seats. The two ends of the fixed rollers are rotatably mounted on the corresponding fixed roller bearing seats. Movable roller bearing seats that can move up and down along the fixed support seats are installed on the fixed support seats. Each movable roller bearing seat is located above the adjacent fixed roller bearing seat. The two ends of the movable rollers are rotatably mounted on the corresponding movable roller bearing seats. The sidewall shaping mechanism includes two mounting seats arranged opposite each other along the width direction of the discharge platform. Each mounting seat has a support on the side close to it. Each support has a vertically extending shaping roller on the side away from the adjacent mounting seat. The supports can slide along the adjacent mounting seats in the width direction of the discharge platform through sliding engagement components. Each mounting seat is equipped with a shaping roller position adjustment component for driving the adjacent support to move along the width direction of the discharge platform. Both fixed support seats have vertically extending grooves on their sides that are close to each other. The fixed roller bearing seats are respectively installed at the bottom of the corresponding grooves, and the movable roller bearing seats can be raised and lowered along the corresponding grooves. At least one counterweight block capable of moving up and down along the corresponding slide is detachably installed on the top of each movable roller bearing seat. The bottom of each counterweight has a protruding positioning protrusion, and the top of each counterweight has a recessed positioning groove that matches the positioning protrusion. The positioning protrusion of the upper counterweight can be embedded in the positioning groove of the lower counterweight. The top of each movable roller bearing seat has a recessed connecting groove that matches the positioning protrusion. The positioning protrusion of the counterweight above the movable roller bearing seat can be embedded in the connecting groove of the movable roller bearing seat. The fixed roller, the movable roller, and the shaping roller are all covered with high-temperature felt. The online thermal shaping method includes the following steps: S1. Adjust the large-area shaping mechanism according to the following steps: S11. Raise the movable roller so that the distance between the fixed roller and the movable roller is greater than the thickness of the large aluminum alloy profile; S12, allowing large aluminum alloy profiles to pass between the fixed roller and the movable roller; S13. Release the movable roller, so that the fixed roller and the movable roller clamp the upper and lower surfaces of the large aluminum alloy profile. S14. Start the extrusion production line and observe the shaping effect of the upper and lower surfaces of the large aluminum alloy profile: if qualified, the extrusion production line continues to run; if unqualified, the extrusion production line stops and proceeds to step S15. S15. After adding a counterweight to each of the two movable roller bearing seats, return to step S14. S2. Adjust the sidewall shaping mechanism according to the following steps: S21. Activate the shaping roller position adjustment assembly to move the two shaping rollers away from each other to their maximum positions; S22, allowing large aluminum alloy profiles to pass between two forming rollers; S23. Start the shaping roller position adjustment assembly so that the two shaping rollers clamp the two side walls of the large aluminum alloy profile in the width direction; S24. Start the extrusion production line and observe the shaping effect of the two side walls in the width direction of the large aluminum alloy profile: if qualified, the extrusion production line continues to run; if unqualified, the extrusion production line stops and returns to step S23.

2. The online thermal shaping method according to claim 1, characterized in that: The sliding fit assembly includes at least one guide rod fixedly installed on the side of the support near the adjacent mounting seat and guide cylinders adapted to the corresponding guide rods. The guide rods and guide cylinders extend along the width direction of the discharge platform. The guide cylinders are all installed on the corresponding mounting seats, and each guide rod can slide along the corresponding guide cylinder.

3. The online thermal shaping method according to claim 1, characterized in that: The shaping roller position adjustment assembly includes a lead screw fixedly installed on the side of the support near the adjacent mounting seat, a planetary roller lead screw nut fixedly installed on the mounting seat, and a drive module for driving the planetary roller lead screw nut to rotate. The lead screw extends along the width direction of the discharge table, and the planetary roller lead screw nut is fitted on the lead screw and forms a lead screw nut kinematic pair with the lead screw.

4. The online thermal shaping method according to claim 3, characterized in that: The drive module includes a servo motor mounted on a mounting base, an active synchronous pulley synchronously mounted on the motor shaft of the servo motor, and a driven synchronous pulley that rotates synchronously with the planetary roller screw nut. The active synchronous pulley drives the driven synchronous pulley to rotate via a synchronous belt.

5. The online thermal shaping method according to claim 1, characterized in that: The discharge platform includes two opposing ground beams and several conveyor rollers evenly distributed along the ground beams. The two ends of each conveyor roller are rotatably mounted on the corresponding ground beam through conveyor roller bearing seats. Two fixed support seats are vertically fixedly mounted on the feeding end of the corresponding ground beam. The two mounting seats are located on the side of the adjacent fixed support seat away from the ground beam.

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