Aluminum profile extrusion flatness shaping method and shaping device

Abstract

The present invention relates to a flatness shaping method, in particular to an aluminum profile extrusion molding flatness shaping method and shaping device. In the aluminum profile extrusion molding flatness shaping method, graphite is pressed against the side of the aluminum profile that needs to be shaped, and the graphite is located at the outlet of the aluminum profile extrusion equipment. The aluminum profile extrusion molding flatness shaping device includes a graphite pressing block, which is slidably pressed against the side of the aluminum profile that needs to be shaped; and a pressing block fixing device, which is used to press the graphite pressing block against the side of the aluminum profile. The aluminum profile extrusion molding flatness shaping method provided by the present invention can effectively ensure the flatness of the side of the flat hollow aluminum profile, the method is simple, and the shaping is reliable. The aluminum profile extrusion molding flatness shaping device provided by the present invention has a simple structure and is easy to use, and can effectively correct the flatness when the flat hollow aluminum profile comes out of the furnace.

Description

Technical Field

[0001] The invention relates to a flatness shaping method, in particular to an aluminum profile extrusion molding flatness shaping method and a shaping device. Background Art

[0002] Aluminum profiles are basically formed by extrusion. After the aluminum profile comes out of the mold, it goes from a high temperature environment to room temperature. Due to the large temperature difference, the flat hollow aluminum profile is prone to deformation, resulting in the flatness not meeting the requirements. Since it is hollow and flat, it is difficult to reshape it later, which can easily cause permanent deformation or surface damage to the aluminum profile. Flat aluminum profiles are prone to forming a bow shape, with both the upper and lower surfaces deforming in the same direction. It is very difficult to reshape the surface that is deformed inside the aluminum profile.

[0003] Therefore, it is necessary to correct the flatness of the flat hollow aluminum profile when the aluminum profile is out of the furnace, but there is currently no suitable method or equipment to achieve the flatness correction of the flat hollow aluminum profile. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an aluminum profile extrusion molding flatness shaping method which has a simple structure, is easy to use, and can effectively correct the flatness when the flat hollow aluminum profile comes out of the furnace. The specific technical scheme is as follows:

[0005] A method for shaping the flatness of an aluminum profile by extrusion molding comprises pressing graphite on the side of the aluminum profile that needs shaping, wherein the graphite is located at the outlet of an aluminum profile extrusion device.

[0006] By adopting the above technical solution, graphite has a flaky crystal structure and good lubrication performance, and also has good electrical conductivity, thermal conductivity, wear resistance, pressure resistance, temperature resistance, and chemical stability.

[0007] The temperature of the aluminum profile at the outlet of the aluminum profile extrusion equipment is around 560℃.

[0008] Graphite is resistant to high temperatures and self-lubricating, so after the aluminum profile comes out of the furnace, the aluminum profile at high temperature can be extruded and shaped. At this time, the aluminum profile is soft and easy to shape. The graphite is located above the conveying roller, and the graphite is pressed tightly on the aluminum profile. The conveying roller supports the aluminum profile to achieve the shaping of the aluminum profile. The conveying roller is provided by the aluminum profile extrusion equipment.

[0009] Since graphite has a lubricating effect and its hardness is much lower than that of aluminum profiles, sliding friction can occur between graphite and aluminum profiles, and graphite does not damage the surface of the aluminum profiles.

[0010] The graphite shaping surface can be a flat surface or a curved surface. The graphite shaping surface is related to the flatness of the extruded aluminum profile and the flatness required by the product. The graphite shaping surface is set according to the actual situation. The graphite shaping surface is extruded on the side of the aluminum profile, which is relatively soft at high temperature, to change the flatness of the side of the aluminum profile, so that the flatness of the aluminum profile meets the design requirements after subsequent cooling.

[0011] Although the extrusion of aluminum profiles is continuous, when one aluminum ingot is used up, another one needs to be loaded. Therefore, there is a certain time interval for the graphite to cool down to a certain extent and the temperature of the graphite will not be too high.

[0012] The method provided by the present invention is best used for flat hollow aluminum profiles, and can also be used for shaping the flatness of other aluminum profiles after extrusion.

[0013] Furthermore, the graphite is pressed onto two mutually parallel side surfaces of the aluminum profile, at least one of which is a surface that needs to be shaped.

[0014] By adopting the above technical solution, the shaping effect is improved by relatively setting two graphites to press the aluminum profile. Because the contact area between the conveying roller and the aluminum profile is small, usually linear contact, resulting in less effective extrusion of the graphite on the side of the aluminum profile. The two graphites are used to jointly extrude the aluminum profile, which greatly increases the contact area between the graphite and the aluminum profile, increases the effective shaping area, and enables the aluminum profile to maintain a certain effective extrusion time, thereby achieving the shaping of the flatness of the side of the aluminum profile.

[0015] Furthermore, the temperature of the graphite is lowered by spraying water on the graphite or immersing the graphite in water.

[0016] By adopting the above technical solution, the graphite becomes hard after high temperature, and the hardened graphite is easy to scratch the surface of the aluminum profile. Spraying water on the graphite or immersing the graphite in water can effectively avoid the hardening temperature of the graphite. Water keeps the graphite at a lower temperature, and water quickly cools the graphite, effectively reducing the risk of scratches and improving the surface quality of the aluminum profile.

[0017] Furthermore, when water is sprayed on the graphite, the water does not contact the aluminum profile; or the graphite is partially immersed in water, and the water does not contact the aluminum profile.

[0018] By adopting the above technical solution, the contact surface between the aluminum profile and the graphite does not contact water, which reduces certain interference factors and ensures the shaping effect.

[0019] Another object of the present invention is to provide an aluminum profile extrusion flatness shaping device.

[0020] The invention discloses an aluminum profile extrusion flatness shaping device, comprising a graphite pressing block, which is slidably pressed on the side of the aluminum profile that needs shaping; and a pressing block fixing device, which is used to press the graphite pressing block on the side of the aluminum profile.

[0021] By adopting the above technical solution, the graphite pressing block is used to extrude the side of the aluminum profile that needs to be shaped, ensuring that the flatness of the aluminum profile meets the design requirements.

[0022] Furthermore, it also includes a graphite pad, which is arranged opposite to the graphite pressing block and is slidably pressed on the other side of the aluminum profile opposite to the side; and a pad fixing device, which is used to press the graphite pad on the other side of the aluminum profile.

[0023] By adopting the above technical solution, the upper and lower graphite blocks are used to extrude the aluminum profile, thereby correcting the flatness of the aluminum profile.

[0024] Furthermore, the graphite pressing block and the graphite pad are both arranged horizontally, the graphite pressing block is located above the aluminum profile, and the graphite pad is located below the aluminum profile; the pad fixing device includes a positioning plate, the positioning plate is located below the aluminum profile, and the graphite pad is fixed on the positioning plate;

[0025] The pressing block fixing device comprises a limiting column, which is fixed on both sides of the positioning plate; and a limiting lever, which is fixed on the limiting column and located above the aluminum profile, and the limiting lever is located at one end of the graphite pressing block.

[0026] By adopting the above technical solution, the limit column is used for the movable installation of the limit lever, and the limit lever is conveniently removed when the graphite pressing block is not needed when extruding other aluminum profiles.

[0027] The limit lever blocks the graphite pressing block, so that the graphite pressing block does not move with the aluminum profile, and the graphite is located at a constant position.

[0028] Furthermore, it also includes a limiting column, which is fixed on the limiting lever and is located on both sides of the graphite pressing block.

[0029] By adopting the above technical solution, the limiting column prevents the graphite block from moving left and right, so that the graphite pressing block is kept above the aluminum profile.

[0030] Furthermore, a water tank is provided on the positioning plate, the graphite pad is located in the water tank, and the water tank is filled with water.

[0031] By adopting the above technical solution, the water tank can limit the position of the graphite pad, and the water in the water tank can cool the graphite pad.

[0032] Furthermore, it also includes a nozzle, which is used to spray water on the graphite block and the graphite pad.

[0033] By adopting the above technical solution, water is sprayed onto the graphite pressing block and the graphite pad to cool them down, and the flowing water has a good cooling effect.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The aluminum profile extrusion molding flatness shaping method provided by the present invention can effectively ensure the flatness of the side of the flat hollow aluminum profile, the method is simple, and the shaping is reliable. The aluminum profile extrusion molding flatness shaping device provided by the present invention has a simple structure and is easy to use, and can effectively correct the flatness of the flat hollow aluminum profile when it comes out of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front view of the aluminum profile extrusion flatness shaping device;

[0037] Figure 2 It is a top view of the aluminum profile extrusion flatness shaping device;

[0038] Figure 3 It is a side view of the flatness shaping device for aluminum profile extrusion;

[0039] Figure 4 It is a schematic diagram of the axonometric structure of an aluminum profile extrusion forming flatness shaping device. DETAILED DESCRIPTION

[0040] The present invention will be further described with reference to the accompanying drawings.

[0041] Embodiment 1

[0042] A method for shaping the flatness of an aluminum profile by extrusion molding comprises pressing graphite on the side of the aluminum profile that needs shaping, wherein the graphite is located at the outlet of an aluminum profile extrusion device.

[0043] Graphite has a flaky crystal structure and good lubrication properties. It also has good electrical and thermal conductivity, wear resistance, pressure resistance, temperature resistance, and chemical stability.

[0044] The temperature of the aluminum profile at the outlet of the aluminum profile extrusion equipment is around 560℃.

[0045] Graphite is resistant to high temperatures and self-lubricating, so after the aluminum profile comes out of the furnace, the aluminum profile at high temperature can be extruded and shaped. At this time, the aluminum profile is soft and easy to shape. The graphite is located above the conveying roller, and the graphite is pressed tightly on the aluminum profile. The conveying roller supports the aluminum profile to achieve the shaping of the aluminum profile. The conveying roller is provided by the aluminum profile extrusion equipment.

[0046] Since graphite has a lubricating effect and its hardness is much lower than that of aluminum profiles, sliding friction can occur between graphite and aluminum profiles, and graphite does not damage the surface of the aluminum profiles.

[0047] The graphite shaping surface can be a flat surface or a curved surface. The graphite shaping surface is related to the flatness of the extruded aluminum profile and the flatness required by the product. The graphite shaping surface is set according to the actual situation. The graphite shaping surface is extruded on the side of the aluminum profile, which is relatively soft at high temperature, to change the flatness of the side of the aluminum profile, so that the flatness of the aluminum profile meets the design requirements after subsequent cooling.

[0048] Although the extrusion of aluminum profiles is continuous, when one aluminum ingot is used up, another one needs to be loaded. Therefore, there is a certain time interval for the graphite to cool down to a certain extent and the temperature of the graphite will not be too high.

[0049] The method provided by the present invention is best used for flat hollow aluminum profiles, and can also be used for shaping the flatness of other aluminum profiles after extrusion.

[0050] Furthermore, the graphite is pressed onto two mutually parallel side surfaces of the aluminum profile, at least one of which is a surface that needs to be shaped.

[0051] The shaping effect is improved by pressing the aluminum profile with two graphites relatively. Because the contact area between the conveying roller and the aluminum profile is small, usually linear contact, resulting in less effective extrusion of the graphite on the side of the aluminum profile. The two graphites are used to extrude the aluminum profile together, which greatly increases the contact area between the graphite and the aluminum profile, increases the effective shaping area, and enables the aluminum profile to maintain a certain effective extrusion time, thereby achieving the shaping of the flatness of the side of the aluminum profile.

[0052] Spray water on the graphite or immerse the graphite in water to lower the temperature of the graphite.

[0053] Graphite becomes hard after being exposed to high temperatures. Hardened graphite is prone to scratching the surface of aluminum profiles. Spraying water on graphite or immersing it in water can effectively prevent the temperature of graphite from rising to the hardening temperature. Water keeps the graphite at a lower temperature and cools it quickly, effectively reducing the risk of scratches and improving the surface quality of aluminum profiles.

[0054] When water is sprayed on the graphite, the water does not contact the aluminum profile; or the graphite is partially immersed in water, and the water does not contact the aluminum profile.

[0055] The contact surface between the aluminum profile and graphite does not contact water, which reduces certain interference factors and ensures the shaping effect.

[0056] A method for shaping the flatness of aluminum profiles by extrusion molding, wherein graphite is pressed against the side of the aluminum profile that needs to be shaped, and the graphite is located at the outlet of the aluminum profile extrusion equipment; wherein the graphite is pressed against two mutually parallel side surfaces of the aluminum profile, and at least one side surface is a surface that needs to be shaped; when water is sprayed on the graphite, the water does not contact the aluminum profile; or the graphite is partially immersed in water, and the water does not contact the aluminum profile.

[0057] The aluminum profile extrusion forming flatness shaping method provided by the invention can effectively ensure the flatness of the side surface of the flat hollow aluminum profile, the method is simple, the shaping is reliable, and the shaping effect is good.

[0058] Embodiment 2

[0059] like Figures 1 to 4 As shown, the aluminum profile extrusion forming flatness shaping device includes a graphite press block 1, which is slidably located above the aluminum profile 5 and pressed on the aluminum profile 5; a graphite pad 2, which is slidably located below the aluminum profile 5, and the graphite press block 1 presses the aluminum profile 5 on the graphite pad 2; a positioning plate 3, which is located below the aluminum profile 5, and the graphite pad 2 is fixed on the positioning plate 3; and a press block fixing device, which is located above the aluminum profile 5, and the press block fixing device is used to limit the graphite press block 1 on the aluminum profile 5.

[0060] Graphite has a flaky crystal structure and good lubrication properties. It also has good electrical and thermal conductivity, wear resistance, pressure resistance, temperature resistance, and chemical stability.

[0061] Graphite is temperature-resistant and self-lubricating, so the aluminum profile 5 at high temperature can be shaped after it comes out of the furnace. At this time, the aluminum profile 5 is relatively soft and easy to shape. The aluminum profile 5 is extruded by the upper and lower graphite blocks to correct the flatness of the upper and lower surfaces of the aluminum profile 5.

[0062] Graphite is self-lubricating and relatively soft, so it will not scratch the surface of the aluminum profile 5 and will not affect the surface quality of the aluminum profile 5. It is also high temperature resistant and will not be affected by the aluminum profile 5 just out of the furnace, at which point the temperature of the aluminum profile 5 is about 560°C.

[0063] It is mainly aimed at flat hollow aluminum profiles 5, that is, aluminum profiles 5 with a large aspect ratio.

[0064] The block fixing device includes a limit column 41, which is fixed on both sides of the positioning plate 3; and a limit lever 42, which is fixed on the limit column 41 and located above the aluminum profile 5. The limit lever 42 is located at one end of the graphite block 1.

[0065] The limiting column 41 is used for the movable installation of the limiting lever 42 , and it is convenient to remove the limiting lever 42 when the graphite pressing block 1 is not needed when extruding other aluminum profiles 5 .

[0066] The limiting lever 42 blocks the graphite pressed block 1, so that the graphite pressed block 1 does not move along with the aluminum profile 5, and the graphite is located at a constant position.

[0067] The limit posts 43 are also included, and the limit posts 43 are fixed on the limit lever 42 and are located on both sides of the graphite block 1. The limit posts 43 prevent the graphite block from moving left and right, so that the graphite block 1 is kept above the aluminum profile 5.

[0068] Embodiment 3

[0069] On the basis of the above-mentioned second embodiment, a water tank 31 is provided on the positioning plate 3 , the graphite pad 2 is located in the water tank 31 , and the water tank 31 is filled with water.

[0070] The water in the water tank 31 can cool the graphite spacer 2 and reduce the temperature of the graphite spacer 2 .

[0071] Graphite becomes hard after being exposed to high temperature, and the hardened graphite is easy to scratch the surface of the aluminum profile 5. Spraying water on the graphite or immersing the graphite in water can effectively avoid the hardening temperature of the graphite. Water keeps the graphite at a lower temperature and quickly cools the graphite, effectively reducing the risk of scratches and improving the surface quality of the aluminum profile 5.

[0072] The water in the water tank 31 can be exchanged with the water in the cooling tower to maintain a low water temperature for cooling the graphite.

[0073] Embodiment 4

[0074] On the basis of the above-mentioned embodiment 2 or embodiment 3, a nozzle is further included, which is located on the side of the graphite block 1 and the graphite pad 2, and the nozzle sprays water on the graphite block 1 and the graphite pad 2. The water cools the graphite block 1 and the graphite pad 2, and the flowing water has a good cooling effect, so that the graphite block 1 and the graphite pad 2 maintain a low temperature. The top of the graphite block 1 can be provided with a flow channel, and the flow channel guides the water on the top of the graphite block 1 to prevent water from entering between the graphite block 1 and the aluminum profile 5.

Claims

1. Aluminum profile extrusion flatness shaping device, characterized in that: include: A graphite pressing block, wherein the graphite pressing block is slidably pressed on the side of the aluminum profile that needs to be shaped; A pressing block fixing device, wherein the pressing block fixing device is used to press the graphite pressing block onto the side of the aluminum profile; A graphite pad, the graphite pad is arranged opposite to the graphite pressing block, the graphite pad is slidably pressed on the other side of the aluminum profile opposite to the side, the graphite pressing block and the graphite pad are both arranged horizontally, and the graphite pressing block and the graphite pad are located at the outlet of the aluminum profile extrusion equipment; A pad fixing device, the pad fixing device is used to press the graphite pad onto the other side of the aluminum profile; The pad block fixing device comprises a positioning plate, the positioning plate is located below the aluminum profile, and the graphite pad block is fixed on the positioning plate; The block fixing device comprises: a limit column, a limit lever and a limit column, wherein the limit column is fixed on both sides of the positioning plate; the limit lever is fixed on the limit column and is located above the aluminum profile, the limit lever is located at one end of the graphite block, the limit column is fixed on the limit lever, and the limit column is located on both sides of the graphite block; The nozzle is located on the side of the graphite block and the graphite pad. The nozzle sprays water on the graphite block and the graphite pad. The water cools the graphite block and the graphite pad. A flow channel is provided on the top of the graphite block to guide the water on the top of the graphite block.

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