An extrusion die for profiled aluminium sections

Abstract

The utility model discloses a kind of special-shaped aluminium profile extrusion dies, relate to aluminium material production and processing technical field.The utility model includes upper die mechanism, clamping mechanism, lower die mechanism and two-track overhead rail aluminium material, the upper die mechanism includes first fixed block, the utility model is set by upper die mechanism, clamping mechanism and lower die mechanism, circular groove is adapted to external aluminium bar, can accurately guide aluminium bar into extrusion area, ensure the initial positioning accuracy of extrusion, square groove is adapted to lower die mechanism, forms a part of extrusion passage, simultaneously enhance the connection tightness between upper and lower die, simultaneously reduce the impact of directly to two-track overhead rail die shape groove, reduce the friction to die shape groove, effectively prevent deformation, increase mould service life, angle aluminium groove makes two-track overhead rail aluminium material and the synchronous one-time forming of compatible angle aluminium, without subsequent new die again to be set up and be processed, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of aluminum material production and processing technology, specifically to an extrusion die for irregularly shaped aluminum profiles. Background Technology

[0002] Aluminum is a lightweight, corrosion-resistant metal material made primarily of aluminum, with the addition of alloying elements such as copper, magnesium, zinc, and silicon. Its production process encompasses multiple stages, including melting and casting, extrusion, and surface treatment. In the manufacturing and forming of aluminum products, extrusion dies are the most typical type of mold and are widely used in the manufacturing process of aluminum products.

[0003] Existing molds are mostly integral structures with simple extrusion channel designs. The impact on the mold core is concentrated during aluminum flow, and heat accumulates rapidly. This is one of the fundamental reasons why even H13 steel molds are prone to thermal fatigue and wear deformation. Furthermore, due to the significant differences in cross-sectional thickness and shape between the aluminum rails and the angle aluminum, forcing them into a single mold design would result in uneven metal flow velocity and reduced welding quality, leading to defects such as waviness and twisting, and extremely low yield. Therefore, those skilled in the art generally believe that two sets of molds must be used for separate production, but this undoubtedly increases mold costs, production processes, and installation complexity. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an extrusion die for irregularly shaped aluminum profiles, so as to solve the technical problems of poor heat dissipation performance of the die, easy wear and deformation, and increased cost and reduced production efficiency caused by the need for additional dies to produce angle aluminum.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an extrusion mold for irregular aluminum profiles, comprising an upper mold mechanism, a snap-fit ​​mechanism, a lower mold mechanism, and two-rail hanging aluminum materials. The upper mold mechanism includes a first fixing block, a circular groove on one side of the first fixing block, a square groove on the other side of the first fixing block, and a positioning hole below the square groove.

[0006] The snap-fit ​​mechanism includes a first snap-fit ​​ring, the outer surface of which is provided with a first sliding groove, a slider is engaged and slidably moved in the first sliding groove, a second snap-fit ​​ring is fixedly connected to one side of the slider, and a second sliding groove is provided inside the second snap-fit ​​ring;

[0007] The lower mold mechanism includes a second fixing block, the outer surface of which is provided with a two-rail hanging mold groove, the top of which is provided with an angle aluminum groove, and a positioning post is provided below which is provided.

[0008] By adopting the above technical solution, the angle aluminum channel allows the aluminum materials of the two-rail hanging rails and the matching angle aluminum to be formed simultaneously in one piece, eliminating the need to open new molds for processing later, reducing production costs, and improving the efficiency of production and installation.

[0009] Furthermore, the circular groove is adapted to the external aluminum rod, and the square groove is adapted to the lower mold mechanism.

[0010] By adopting the above technical solution, the square channel is adapted to the lower die mechanism to form part of the extrusion channel, which helps the aluminum material to flow evenly during the extrusion process, while reducing the direct impact on the two-rail hanging die groove, reducing friction on the die groove, effectively preventing deformation, and increasing the service life of the die.

[0011] Furthermore, four sliders are provided, and the four sliders are evenly spaced in a circular array, and the sliders are adapted to the first groove.

[0012] By adopting the above technical solution, four sliders are set and evenly spaced in a circular array, which ensures the uniformity of the clamping mechanism under force, prevents mold deformation or damage caused by uneven force, provides sufficient support points, and enhances the structural stability of the mold.

[0013] Furthermore, the second snap ring is arc-shaped, and the second groove is adapted to the first snap ring.

[0014] By adopting the above technical solution, the arc-shaped design of the second snap ring not only provides good structural strength, but also enables smooth sliding fit during mold snapping, reducing the risk of loosening or misalignment.

[0015] Furthermore, the positioning post is cylindrical in shape and is adapted to the positioning hole.

[0016] By adopting the above technical solution, the cylindrical shape of the positioning column allows it to precisely match the positioning hole, ensuring accurate alignment of the upper and lower molds when the molds are closed. This precise alignment is crucial for ensuring the shape and size of the extruded finished product.

[0017] Furthermore, the upper mold mechanism, the snap-fit ​​mechanism, and the lower mold mechanism are all made of H13 steel.

[0018] By adopting the above technical solutions, the high hardness and high strength of H13 steel can resist deformation and torsion during long-term use, maintaining the accuracy and stability of the mold.

[0019] Furthermore, the square groove of the upper mold mechanism and the upper surface of the lower mold mechanism cooperate to form a buffer flow guiding structure; the four sliders of the snap-fit ​​mechanism constitute a stress dispersion structure; the buffer flow guiding structure and the stress dispersion structure cooperate to act on the mold body made of H13 steel.

[0020] By adopting the above technical solution, the circular groove, square groove, two-rail hanging mold groove, and angle aluminum groove together form an extrusion channel optimized by fluid dynamics. The square groove plays a key role in flow obstruction and redistribution of metal flow in the transition area, ensuring that the thinner angle aluminum part and the thicker hanging rail body part can obtain almost synchronous metal replenishment, thereby effectively preventing defects such as deformation and wavy patterns caused by flow velocity difference.

[0021] In summary, the present invention has the following main advantages:

[0022] 1. This utility model, by setting up an upper mold mechanism, a snap-fit ​​mechanism, and a lower mold mechanism, uses a circular groove that matches the external aluminum rod to accurately guide the aluminum rod into the extrusion area, ensuring the initial positioning accuracy of the extrusion. The square groove matches the lower mold mechanism, forming part of the extrusion channel, which helps the aluminum material flow evenly during the extrusion process. At the same time, it enhances the connection between the upper and lower molds, reduces the direct impact on the two-rail hanging mold groove, reduces friction on the mold groove, effectively prevents deformation, and increases the service life of the mold. The first snap-fit ​​ring and the second snap-fit ​​ring achieve rapid engagement and disengagement of the upper and lower molds by sliding the slider in the first slide groove, simplifying the mold installation and disassembly process, improving operating efficiency, and enhancing the overall structural strength of the mold.

[0023] 2. This utility model, by setting positioning holes, positioning posts, and angle aluminum channels, ensures accurate positioning of the upper and lower molds when they are assembled, and fixes the position of the square channel and the two-rail hanging mold grooves to prevent inversion. At the same time, it limits and fixes the aluminum material during the extrusion process, so that the aluminum material will not shift during the extrusion process. The angle aluminum channel allows the aluminum material of the two-rail hanging and the matching angle aluminum to be formed simultaneously in one go, without the need to open new molds for processing later, which reduces production costs and improves the efficiency of production and installation. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the lower mold mechanism of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the first snap-fit ​​ring of this utility model;

[0027] Figure 4 This is a schematic diagram of the upper mold mechanism of this utility model.

[0028] In the diagram: 1. Upper mold mechanism; 101. First fixing block; 102. Circular groove; 103. Square groove; 104. Positioning hole; 2. Snap-fit ​​mechanism; 201. First snap-fit ​​ring; 202. First sliding groove; 203. Slider; 204. Second snap-fit ​​ring; 205. Second sliding groove; 3. Lower mold mechanism; 301. Second fixing block; 302. Two-rail hanging rail mold groove; 303. Angle aluminum groove; 304. Positioning post; 4. Two-rail hanging rail aluminum material. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The embodiments of this utility model will be described below based on its overall structure.

[0031] An extrusion die for irregularly shaped aluminum profiles, such as Figures 1-4 As shown, it includes an upper mold mechanism 1, a snap-fit ​​mechanism 2, a lower mold mechanism 3, and two-rail hanging aluminum materials 4. The upper mold mechanism 1 includes a first fixing block 101. A circular groove 102 is provided on one side of the first fixing block 101, and a square groove 103 is provided on the other side of the first fixing block 101. A positioning hole 104 is provided below the square groove 103.

[0032] The snap-fit ​​mechanism 2 includes a first snap-fit ​​ring 201, a first groove 202 is provided on the outer surface of the first snap-fit ​​ring 201, a slider 203 is snapped and slidably moved in the first groove 202, a second snap-fit ​​ring 204 is fixedly connected to one side of the slider 203, and a second groove 205 is provided inside the second snap-fit ​​ring 204.

[0033] The lower mold mechanism 3 includes a second fixing block 301. The outer surface of the second fixing block 301 is provided with a two-rail hanging mold groove 302. An angle aluminum groove 303 is provided at the top of the two-rail hanging mold groove 302. A positioning post 304 is provided below the two-rail hanging mold groove 302. The angle aluminum groove 303 enables the two-rail hanging aluminum material and the matching angle aluminum to be formed simultaneously in one step, without the need to open a new mold for processing, which reduces production costs and improves the efficiency of production and installation. The two-rail hanging mold groove 302 is set according to the product shape to ensure the accurate forming of aluminum material, optimize the flow of aluminum material in the extrusion process, and reduce forming defects.

[0034] See Figure 3 , Figure 4The circular groove 102 is adapted to the external aluminum rod, and the square groove 103 is adapted to the lower die mechanism 3. The square groove 103 and the lower die mechanism 3 are adapted to form part of the extrusion channel, which helps the aluminum material to flow evenly during the extrusion process, while reducing the direct impact on the two-rail hanging die groove, reducing the friction on the die groove, effectively preventing deformation, and increasing the service life of the die. The circular groove 102 is adapted to the external aluminum rod, which can accurately guide the aluminum rod into the extrusion area and ensure the initial positioning accuracy of the extrusion.

[0035] See Figure 1 , Figure 2 Four sliders 203 are provided, and the four sliders 203 are evenly spaced in a circumferential array. The sliders 203 are adapted to the first slide groove 202. The four sliders 203 are provided and are evenly spaced in a circumferential array to ensure the uniformity of the force when the locking mechanism 2 is subjected to force, prevent the mold from being deformed or damaged due to uneven force, provide sufficient support points, and enhance the structural stability of the mold. The sliders 203 are adapted to the first slide groove 202 and can slide in the slide groove, thereby realizing the quick engagement and disengagement between the upper mold mechanism 1 and the lower mold mechanism 3, improving the ease of operation and production efficiency of the mold.

[0036] See Figure 1 , Figure 2 The second locking ring 204 is arc-shaped, and the second sliding groove 205 is adapted to the first locking ring 201. The arc shape of the second locking ring 204 not only provides good structural strength, but also enables smooth sliding fit during mold fastening, reducing the risk of loosening or misalignment. The second sliding groove 205 plays a good guiding role for the first locking ring 201, ensuring that the locking ring can move along the predetermined trajectory during sliding, avoiding the occurrence of offset or jamming, and at the same time, it can provide good heat dissipation for the mold.

[0037] See Figure 2 , Figure 3 The positioning post 304 is cylindrical in shape and is adapted to the positioning hole 104. The cylindrical shape of the positioning post 304 allows it to fit precisely with the positioning hole 104, ensuring accurate alignment of the upper and lower molds when the molds are closed. This precise alignment is crucial for ensuring the shape and size of the extruded product. The positioning post 304 makes the installation and disassembly of the mold more convenient and quick, and operators can quickly and accurately complete the positioning and fixing of the mold.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4The upper mold mechanism 1, the snap-fit ​​mechanism 2, and the lower mold mechanism 3 are all made of H13 steel. The high hardness and high strength of H13 steel can resist deformation and torsion during long-term use, maintaining the accuracy and stability of the mold. H13 steel has excellent thermal crack resistance, which can effectively prevent cracks or fractures at high temperatures, improve the safety and reliability of the mold, and at the same time provide good heat dissipation.

[0039] The implementation principle of this utility model is as follows: First, the positioning post 304 is aligned with the positioning hole 104. Then, the first snap ring 201 slides in the second slide groove 205, and the slider 203 slides in the first slide groove 202, so that the upper and lower molds are engaged. Then, the extrusion equipment is started, so that the aluminum rod passes through the round groove 201, the square groove 103, the two-rail hanging mold groove 302 and the angle aluminum groove 303 in sequence.

[0040] The square channel 103 and the upper surface of the lower mold mechanism 3 cooperate to form a unique buffer and flow guiding structure. Unlike traditional direct stamping, it can first disperse the impact force of the aluminum bar and then guide the molten metal to flow smoothly into the two-rail hanging mold channel 302 and the corner aluminum channel 303. This significantly reduces the direct impact and friction of the molten aluminum on the key parts of the mold channel, so that even if H13 steel is used, the wear resistance life of the mold is improved beyond expectations.

[0041] The snap-fit ​​mechanism 2 achieves rapid and precise engagement and separation of the upper and lower dies through the precise sliding of four circumferentially arrayed sliders 203 within the groove. This not only improves operational efficiency, but more importantly, the multiple sliders evenly distribute the huge radial and axial stress generated during the extrusion process, avoiding stress concentration that could lead to microcracks or deformation in the die, thereby protecting the die's precision structure and extending its service life.

[0042] The precise fit between the positioning pin 304 and the positioning hole 104 ensures the absolute alignment of the upper and lower dies during each mold closing. This is the fundamental guarantee for achieving integrated extrusion of complex cross-sections. Only by maintaining this alignment accuracy over a long period of time can the cross-sectional dimensions of the extruded profile be guaranteed to be stable. The position of the angle aluminum groove 303 is accurate, thereby ensuring its assembly function with the angle aluminum. The snap-fit ​​and positioning system of this utility model together ensure this long-term stability.

[0043] All parts not covered in this utility model are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A die for extruding irregularly shaped aluminum profiles, characterized in that: It includes an upper mold mechanism (1), a snap-fit ​​mechanism (2), a lower mold mechanism (3), and two-rail hanging aluminum materials (4). The upper mold mechanism (1) includes a first fixing block (101). A circular groove (102) is provided on one side of the first fixing block (101), and a square groove (103) is provided on the other side of the first fixing block (101). A positioning hole (104) is provided below the square groove (103). The snap-fit ​​mechanism (2) includes a first snap-fit ​​ring (201), the outer surface of the first snap-fit ​​ring (201) is provided with a first sliding groove (202), the first sliding groove (202) engages with a slider (203) which slides, a second snap-fit ​​ring (204) is fixedly connected to one side of the slider (203), and the interior of the second snap-fit ​​ring (204) is provided with a second sliding groove (205); The lower mold mechanism (3) includes a second fixing block (301), the outer surface of the second fixing block (301) is provided with a two-rail hanging rail mold groove (302), the top of the two-rail hanging rail mold groove (302) is provided with an angle aluminum groove (303), and a positioning post (304) is provided below the two-rail hanging rail mold groove (302).

2. The shaped aluminum profile extrusion die according to claim 1, characterized in that: The circular groove (102) is adapted to the external aluminum rod, and the square groove (103) is adapted to the lower mold mechanism (3).

3. The shaped aluminum profile extrusion die according to claim 1, characterized in that: Four sliders (203) are provided, and the four sliders (203) are arranged in a circumferential array at equal intervals. The sliders (203) are adapted to the first groove (202).

4. The shaped aluminum profile extrusion die according to claim 1, characterized in that: The second snap ring (204) is arc-shaped, and the second groove (205) is adapted to the first snap ring (201).

5. The shaped aluminum profile extrusion die according to claim 1, characterized in that: The positioning post (304) is cylindrical in shape and is adapted to the positioning hole (104).

6. The shaped aluminum profile extrusion die according to claim 1, characterized in that: The upper mold mechanism (1), the snap-fit ​​mechanism (2), and the lower mold mechanism (3) are all made of H13 steel.

7. The shaped aluminum profile extrusion die according to claim 1, characterized in that: The square groove (103) of the upper mold mechanism (1) and the upper surface of the lower mold mechanism (3) cooperate to form a buffer flow guiding structure; the four sliders (203) of the snap-fit ​​mechanism (2) constitute a stress dispersion structure; the buffer flow guiding structure and the stress dispersion structure cooperate to act on the mold body made of H13 steel.

Images