Finishing device for ultra-large rectangular aluminum alloy extruded profile

Abstract

The utility model relates to the technical field of profile extrusion devices, in particular to a finishing device for an oversized rectangular aluminum alloy extruded profile, which comprises a support, two parallel support frames are arranged at the top of the support, the support frames are vertically arranged, and a plurality of support bearings are mounted on each support frame. The supporting bearings on the two supporting frames are oppositely arranged, a supporting roller is rotationally connected between every two opposite supporting bearings, the supporting rollers are horizontally arranged, and all the supporting rollers are located in the same horizontal plane. A plurality of extrusion bearings are mounted on each supporting frame, the extrusion bearings on the two supporting frames are oppositely arranged, an extrusion roller is rotationally connected between every two opposite extrusion bearings, the extrusion rollers are horizontally arranged and located above the supporting rollers, and all the extrusion rollers are located in the same horizontal plane. According to the method, the problem that gaps of rectangular profiles are out of tolerance is solved by extruding the rectangular profiles, and the rectangular profiles become qualified profile products.

Description

Technical Field

[0001] The utility model relates to the technical field of profile extrusion devices, and particularly relates to a finishing device for super-large specification aluminum alloy rectangular extrusion profiles. Background Art

[0002] Aluminum alloy rectangular extrusion is a process of processing aluminum alloy materials into profiles with rectangular cross-sections through an extrusion process. This extrusion process includes pushing an extrusion ingot through a die opening similar in appearance to the die opening under extremely high pressure, thereby transforming the extrusion ingot into an uninterrupted part with a uniform cross-section. This process is very common in the field of aluminum alloy processing, especially in industries such as construction, transportation, and machinery.

[0003] In existing rail transit aluminum alloy structural parts, large-specification rectangular extrusion aluminum alloy products are very important load-bearing parts in the underframe structure and have a great impact on the stable operation of subways, urban rails, etc. Moreover, due to their large specifications, these products have relatively thick wall thicknesses, and the wall thicknesses of the rectangular surfaces are also inconsistent. During the extrusion production process, affected by uneven online quenching and cooling and the straightening process, the side wall gaps of rectangular profiles often change greatly, resulting in out-of-tolerance gaps in the products. Although certain improvements have been made through process adjustment and die correction, the product design requirements still cannot be met. Out-of-tolerance products not only reduce the product yield rate, but also, during the splicing process, multiple dimensional defects also affect the product delivery schedule and reduce customer satisfaction.

[0004] On super-large extrusion equipment, the current process technology and die design and repair level are still very difficult to completely solve the die deformation caused by ultra-high pressure extrusion during the production process. The out-of-tolerance product gaps also pose great difficulties in subsequent finishing. Often, the dimensions or surface quality have to be sacrificed to improve the gaps, reduce product scrapping, and increase the yield rate, but this also increases customer complaints. Summary of the Utility Model

[0005] To solve the technical problem of out-of-tolerance gaps in rectangular profile products produced by super-large aluminum alloy rectangular extrusion equipment in the prior art, the utility model provides a finishing device for super-large specification aluminum alloy rectangular extrusion profiles.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] A finishing device for extra-large-sized rectangular aluminum alloy extrusion profiles, comprising a bracket. At the top of the bracket, there are two vertically arranged support frames which are parallel to each other. Each support frame is installed with a number of support bearings. The support bearings on the two support frames are arranged oppositely. A support roller is rotatably connected between every two opposite support bearings. The support rollers are horizontally arranged and all the support rollers are located in the same horizontal plane. Each support frame is installed with a number of extrusion bearings. The extrusion bearings on the two support frames are arranged oppositely. An extrusion roller is rotatably connected between every two opposite extrusion bearings. The extrusion rollers are horizontally arranged. The extrusion rollers are located above the support rollers and all the extrusion rollers are located in the same horizontal plane.

[0008] With the above structural scheme, a rectangular channel is formed among the two support frames, all the support rollers and all the extrusion rollers. One end of the just-extruded rectangular profile is pushed into the rectangular channel from one end of the rectangular channel. During the pushing process, the support rollers rotate to enable the rectangular profile to continuously move forward. The support rollers play a role in supporting the forward movement of the rectangular profile. During the forward movement of the rectangular profile, the out-of-tolerance part at the top of the rectangular profile abuts against and is extruded by the extrusion rollers, and the out-of-tolerance part is pressed down, so that the rectangular profile can become a qualified profile product. The rectangular profile is pushed out from the other end of the rectangular channel, and a rectangular profile product with qualified clearance can be obtained. This application improves the clearance out-of-tolerance problem of the rectangular profile by extruding the rectangular profile, enables the rectangular profile to become a qualified profile product, ensures the surface quality of the product, and meets the initial design requirements of the product. It solves the problem of clearance out-of-tolerance of rectangular profile products caused by production processes and die design problems during the production process of extra-large extrusion equipment, improves the qualification rate, and reduces the production and delivery pressure.

[0009] As a preferred implementation mode of a finishing device for extra-large-sized rectangular aluminum alloy extrusion profiles, each support frame includes a number of vertically arranged and parallel lead screws. In each support frame, according to the arrangement order of the lead screws, two lead screws form a group. A support bearing seat is arranged between the bottoms of each group of lead screws. The support bearing seat is used to support the support bearing. The lead screws pass through both sides of the support bearing seat. First limit nuts are arranged on the upper and lower sides of the support bearing seat. The first limit nuts are threadedly connected to the lead screws. An extrusion bearing seat is arranged between the tops of each group of lead screws. The extrusion bearing seat is used to support the extrusion bearing. The lead screws pass through both sides of the extrusion bearing seat. Second limit nuts are arranged on the upper and lower sides of the extrusion bearing seat. The second limit nuts are threadedly connected to the lead screws.

[0010] With the above structural scheme, by adjusting the height of the first limit nut, the height of the support bearing seat can be adjusted, and then the height of the support roller can be adjusted. Similarly, the height of the extrusion roller can also be adjusted. Therefore, this application can be applicable to profile products of different heights.

[0011] As a preferred implementation of a finishing device for extra-large-sized aluminum alloy rectangular extrusion profiles, on each support frame, a connecting plate is provided between the support bearing seat and the extrusion bearing seat and / or above the extrusion bearing seat. The connecting plate is horizontally arranged. The lead screw on each support frame passes through the corresponding connecting plate. Two third limit nuts are also threadedly connected to each lead screw, and the two third limit nuts on each lead screw are respectively located on the upper and lower sides of the corresponding connecting plate.

[0012] With the above structural scheme, the stability of the lead screw is improved.

[0013] As a preferred implementation of a finishing device for extra-large-sized aluminum alloy rectangular extrusion profiles, the support roller is cylindrical.

[0014] With the above structural scheme, it is convenient to support and convey the rectangular profile products.

[0015] As a preferred implementation of a finishing device for extra-large-sized aluminum alloy rectangular extrusion profiles, among all the extrusion rollers, the extrusion roller that first contacts the product is spindle-shaped, and the other extrusion rollers are spindle-shaped or cylindrical.

[0016] With the above structural scheme, the extrusion effect of the spindle-shaped extrusion roller is better, and it can better improve the problem of out-of-tolerance product clearance.

[0017] As a preferred implementation of a finishing device for extra-large-sized aluminum alloy rectangular extrusion profiles, both ends of the support roller extend out of the support bearing and the support frame. Transmission gears are fixedly installed at both ends of the support roller. The transmission gears at the same end of all support rollers are engaged with the same transmission rack. The transmission rack at one end of the support roller is a double-sided rack, and the side of the double-sided rack away from the transmission gear is engaged with the driving gear; a variable-frequency motor is provided on one side of the support frame. The output shaft of the variable-frequency motor is arranged parallel to the support roller, and the driving gear is connected to the output shaft of the variable-frequency motor.

[0018] With the above structural scheme, the support roller is driven to rotate by connecting the variable-frequency motor with the gear rack, so that the rectangular profile can stably travel in the rectangular channel, reducing damage to the product surface and reducing the situation of product rejection due to surface quality.

[0019] As a preferred implementation of a finishing device for extra-large-sized aluminum alloy rectangular extrusion profiles, a nylon material layer is provided on the outer surface of the spindle-shaped extrusion roller.

[0020] With the above structural scheme, the nylon material layer takes into account both stiffness and flexibility and is suitable for seamless extrusion of rectangular profile products.

[0021] The beneficial effects of the present utility model include:

[0022] This application improves the problem of out-of-tolerance gaps in rectangular profiles by extruding rectangular profiles, making the rectangular profiles qualified profile products, ensuring the surface quality of the products, and meeting the initial design requirements of the products. It solves the problem of out-of-tolerance gaps in rectangular profile products caused by production processes and die design problems during the production process of extra-large extrusion equipment, improves the qualification rate, and reduces production and delivery pressures. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic perspective view of the finishing device for extra-large aluminum alloy rectangular extrusion profiles in a specific embodiment of the present utility model.

[0025] List of components and reference numerals:

[0026] 1. Bracket; 2. Lead screw; 3. Support bearing seat; 4. Support roller; 5. Extrusion bearing seat; 6. Extrusion roller; 7. First limit nut; 8. Second limit nut; 9. Connecting plate; 10. Transmission gear; 11. Variable-frequency motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment. Obviously, the embodiments described below are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0028] Refer to Figure 1, this embodiment provides a finishing device for super-large-sized aluminum alloy rectangular extrusion profiles, including a bracket 1. At the top of the bracket 1, there are two parallel support frames vertically arranged. Each support frame is installed with several support bearings. The support bearings on the two support frames are arranged oppositely. A support roller 4 is rotatably connected between every two opposite support bearings. The support roller 4 is cylindrical and horizontally arranged. All the support rollers 4 are located in the same horizontal plane; each support frame is installed with several extrusion bearings. The extrusion bearings on the two support frames are arranged oppositely. An extrusion roller 6 is rotatably connected between every two opposite extrusion bearings. The extrusion roller 6 is horizontally arranged. The extrusion roller 6 is located above the support roller 4. All the extrusion rollers 6 are located in the same horizontal plane. Among all the extrusion rollers 6, the extrusion roller 6 that first contacts the product is spindle-shaped, and the other extrusion rollers 6 are spindle-shaped or cylindrical. The outer surface of the spindle-shaped extrusion roller is provided with a nylon material layer.

[0029] Each support frame includes several vertically and parallelly arranged lead screws 2; in each support frame, according to the arrangement order of the lead screws 2, two lead screws 2 form a group. A support bearing seat 3 is provided between the bottoms of each group of lead screws 2. The support bearing seat 3 is used to support the support bearing. The lead screw 2 passes through both sides of the support bearing seat 3. First limit nuts 7 are provided on the upper and lower sides of the support bearing seat 3. The first limit nuts 7 are threadedly connected to the lead screw 2; an extrusion bearing seat 5 is provided between the tops of each group of lead screws 2. The extrusion bearing seat 5 is used to support the extrusion bearing. The lead screw 2 passes through both sides of the extrusion bearing seat 5. Second limit nuts 8 are provided on the upper and lower sides of the extrusion bearing seat 5. The second limit nuts 8 are threadedly connected to the lead screw 2. On each support frame, a connecting plate 9 is provided between the support bearing seat 3 and the extrusion bearing seat 5 and above the extrusion bearing seat 5. The connecting plate 9 is horizontally arranged. The lead screws 2 on each support frame pass through the corresponding connecting plates 9. Two third limit nuts are also threadedly connected to each lead screw 2. The two third limit nuts on each lead screw 2 are respectively located on the upper and lower sides of the corresponding connecting plate 9.

[0030] Both ends of the support roller 4 extend out of the support bearing and the support frame. Transmission gears 10 are fixedly installed at both ends of the support roller 4. The transmission gears 10 at the same end of all the support rollers 4 are meshed with the same transmission rack. The transmission rack at one end of the support roller 4 is a double-sided rack. The side of the double-sided rack away from the transmission gear 10 is meshed with a driving gear; on one side of the bracket 1, there is a variable-frequency motor 11. The output shaft of the variable-frequency motor 11 is arranged parallel to the support roller 4. The driving gear is connected to the output shaft of the variable-frequency motor 11.

[0031] The working principle of this embodiment is as follows:

[0032] A rectangular channel is formed among two support frames, all support rollers 4 and all extrusion rollers 6. One side of the spindle-shaped extrusion roller 6 located at the edge is the inlet of the rectangular channel. The variable-frequency motor 11 can rotate forward and backward. Place one end of the just-extruded rectangular profile above the support roller 4. When the variable-frequency motor 11 rotates forward, it can drive the double-sided rack to move, and then drive the transmission gear 10 to rotate, so that the support roller 4 rotates to drive the rectangular profile into the channel. The support roller 4 plays a role in supporting and driving the rectangular profile forward. During the forward movement of the rectangular profile, the out-of-tolerance part at the top of the rectangular profile abuts against and is extruded by the extrusion roller 6. Since the rectangular profile has just been extruded and has not been completely cured, the out-of-tolerance part can be pressed down to make the rectangular profile a qualified profile product. When the rectangular profile leaves the rectangular channel, the variable-frequency motor 11 rotates backward, driving the double-sided rack to move until it returns to the initial state to receive the next rectangular profile.

[0033] In this embodiment, the clearance out-of-tolerance problem of the rectangular profile is improved by extruding the rectangular profile, making the rectangular profile a qualified profile product, ensuring the surface quality of the product, and meeting the initial design requirements of the product. Solve the problem of clearance out-of-tolerance of rectangular profile products caused by production processes and die design problems during the production process of super-large extrusion equipment, improve the qualification rate, and reduce the production and delivery pressure.

[0034] In this embodiment, the variable-frequency motor 11 is connected to the gear rack to drive the support roller 4 to rotate, so that the rectangular profile can walk stably in the rectangular channel, reducing damage to the product surface and reducing the situation of product rejection due to surface quality.

[0035] In this embodiment, by adjusting the height of the first limit nut 7, the height of the support bearing seat 3 can be adjusted, and then the height of the support roller 4 can be adjusted. Similarly, the height of the extrusion roller 6 can also be adjusted. Therefore, this embodiment can be applicable to profile products of different heights.

[0036] In this embodiment, the nylon material layer is a film-like structure made of nylon, taking into account softness and rigidity. The nylon material layer is bonded to the spindle-shaped extrusion roller 6 as a whole.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A finishing device for large-size aluminum alloy rectangular extruded profiles, comprising a bracket (1), characterized in that: Two support frames are arranged in parallel on the top of the bracket (1). The support frames are arranged vertically. A plurality of support bearings are installed on each support frame. The support bearings on the two support frames are arranged opposite to each other. A support roller (4) is rotatably connected between every two opposing support bearings. The support rollers (4) are arranged horizontally. All support rollers (4) are located in the same horizontal plane. A plurality of extrusion bearings are installed on each support frame. The extrusion bearings on the two support frames are arranged opposite to each other. A extrusion roller (6) is rotatably connected between every two opposing extrusion bearings. The extrusion rollers (6) are arranged horizontally. The extrusion rollers (6) are located above the support rollers (4). All extrusion rollers (6) are located in the same horizontal plane.

2. The super-large aluminum alloy rectangular extruded profile finishing device according to claim 1 is characterized in that: Each support frame comprises a plurality of lead screws (2) arranged vertically and parallel to each other; in each support frame, according to the arrangement order of the lead screws (2), two lead screws (2) form a group, a support bearing seat (3) is provided between the bottoms of each group of lead screws (2), the support bearing seat (3) is used to support the support bearing, the lead screw (2) passes through both sides of the support bearing seat (3), the upper and lower sides of the support bearing seat (3) are provided with first limit nuts (7), the first limit nuts (7) are threadedly connected to the lead screw (2); an extrusion bearing seat (5) is provided between the tops of each group of lead screws (2), the extrusion bearing seat (5) is used to support the extrusion bearing, the lead screw (2) passes through both sides of the extrusion bearing seat (5), the upper and lower sides of the extrusion bearing seat (5) are provided with second limit nuts (8), the second limit nuts (8) are threadedly connected to the lead screw (2).

3. The super-large aluminum alloy rectangular extruded profile finishing device according to claim 2 is characterized in that: On each support frame, a connecting plate (9) is provided between the supporting bearing seat (3) and the extrusion bearing seat (5) and / or above the extrusion bearing seat (5), the connecting plate (9) being arranged horizontally, and the lead screw (2) on each support frame passes through the corresponding connecting plate (9), and each lead screw (2) is also threadedly connected to two third limit nuts, and the two third limit nuts on each lead screw (2) are respectively located on the upper and lower sides of the corresponding connecting plate (9).

4. The super-large aluminum alloy rectangular extruded profile finishing device according to claim 1 is characterized in that: The support roller (4) is cylindrical.

5. The super-large aluminum alloy rectangular extruded profile finishing device according to claim 1 is characterized in that: Among all the squeezing rollers (6), the squeezing roller (6) that first contacts the product is spindle-shaped, and the other squeezing rollers (6) are spindle-shaped or cylindrical.

6. The super-large aluminum alloy rectangular extruded profile finishing device according to claim 1 is characterized in that: Both ends of the support roller (4) extend out of the support bearing and the support frame, and both ends of the support roller (4) are fastened with a transmission gear (10), and the transmission gear (10) at the same end of all the support rollers (4) are meshed with the same transmission rack, and the transmission rack located at one end of the support roller (4) is a double-sided rack, and the side of the double-sided rack away from the transmission gear (10) is meshed with the driving gear; a variable frequency motor (11) is provided on one side of the bracket (1), and the output shaft of the variable frequency motor (11) is arranged parallel to the support roller (4), and the driving gear is connected to the output shaft of the variable frequency motor (11).

7. The super-large aluminum alloy rectangular extruded profile finishing device according to claim 5 is characterized in that: The outer surface of the spindle-shaped extrusion roller is provided with a nylon material layer.

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