A multi-cavity aluminum profile upper die and a profiling die core setting method

Abstract

The present application relates to the technical fields of aluminum profile extrusion forming, and particularly relates to a multi-cavity aluminum profile upper die and a profiling die core setting method, comprising an upper die body and a profiling die core; a shaping area is arranged on the die closing end face of the upper die body, the center point of the die closing end face of the upper die body is coincident with the center point of the shaping area, and a plurality of profiling die cores are arranged in the shaping area. The present application can minimize the stress deviation between the profiling die cores, thereby prolonging the service life of the multi-cavity aluminum alloy profile extrusion die.

Description

Technical Field

[0001] This invention relates to the field of aluminum profile extrusion molding technology, and in particular to a method for setting up an upper die and a contouring die core for a multi-cavity aluminum profile. Background Technology

[0002] In multi-cavity aluminum alloy profile extrusion dies, the sizing zone of the forming die core directly determines the shape and size of the inner cavity of the aluminum alloy profile. However, current multi-cavity aluminum alloy profile extrusion dies suffer from uneven stress distribution among the forming die cores in the forming chamber, especially for non-strictly symmetrical profiles, where the stress deviation between the forming die cores is large, resulting in a shorter service life for the multi-cavity aluminum alloy profile extrusion dies. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method for setting the upper mold and the contouring mold core of a multi-cavity aluminum profile, which can minimize the stress deviation between each contouring mold core, thereby extending the service life of the multi-cavity aluminum alloy profile extrusion mold.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: an upper mold for a multi-cavity aluminum profile, comprising an upper mold body and a contouring mold core; the mold closing end face of the upper mold body has a shaping area, the center point of the mold closing end face of the upper mold body coincides with the center point of the shaping area, and a plurality of contouring mold cores are provided in the shaping area.

[0005] A method for setting the contour mold core of the upper mold of a multi-cavity aluminum profile based on the above scheme includes step S1: determining the centroid position of each cavity of the multi-cavity aluminum profile;

[0006] Step S2: Based on the determined centroid positions of each cavity, set the corresponding shape of the contour mold core within the shaping area of ​​the upper mold body;

[0007] Step S3: The cross-sectional shape of the multi-cavity aluminum profile has the following conditions:

[0008] If the cross-sectional shape of the multi-cavity aluminum profile is symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of the multiple contour mold cores on the mold closing end face of the upper mold body coincides with the center point of the shaping area.

[0009] If the cross-sectional shape of the multi-cavity aluminum profile is not strictly symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of the multiple contour mold cores on the mold closing end face of the upper mold body does not coincide with the center point of the shaping area.

[0010] The beneficial effects of this invention are as follows: A shaping area is provided on the mold closing end face of the upper mold body, and the center point of the shaping area coincides with the center point of the mold closing end face of the upper mold body. Then, according to the cavity position of the multi-cavity aluminum profile, a corresponding number of contour mold cores are set in the shaping area, so that the contour mold cores can be located as close as possible to the center point of the mold closing end face of the upper mold body, thereby reducing the stress deviation between the contour mold cores. At the same time, if the cross-sectional shape of the multi-cavity aluminum profile is symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of multiple contour mold cores on the mold closing end face of the upper mold body coincides with the center point of the shaping area, which can further reduce the stress deviation between the contour mold cores. If the cross-sectional shape of the multi-cavity aluminum profile is not strictly symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of multiple contour mold cores on the mold closing end face of the upper mold body should be as close as possible to the center point of the shaping area, thereby minimizing the stress deviation between the contour mold cores. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a non-strictly asymmetrical multi-cavity aluminum profile.

[0012] Figure 2 for Figure 1 A schematic diagram of the upper die for a multi-cavity aluminum profile used in the extrusion of non-strictly symmetrical multi-cavity aluminum profiles;

[0013] Figure 3 This is a schematic diagram of a symmetrical multi-cavity aluminum profile.

[0014] Figure 4 for Figure 3 A schematic diagram of the upper die for a multi-cavity aluminum profile used in the extrusion of symmetrical multi-cavity aluminum profiles;

[0015] Label Explanation:

[0016] 1. Upper mold body; 11. Shaping area; 12. Diversion hole;

[0017] 2. Contouring mold core;

[0018] 3. Multi-cavity aluminum profiles; 31. Cavity. Detailed Implementation

[0019] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0020] In multi-cavity aluminum alloy profile extrusion dies, the sizing zone of the forming die core directly determines the shape and size of the inner cavity of the aluminum alloy profile. However, current multi-cavity aluminum alloy profile extrusion dies suffer from uneven stress distribution among the forming die cores in the forming chamber, especially for non-strictly symmetrical profiles, where the stress deviation between the forming die cores is large, resulting in a shorter service life for the multi-cavity aluminum alloy profile extrusion dies.

[0021] Based on this, this application provides a method for setting the upper mold and the contouring mold core of a multi-cavity aluminum profile, which can solve the problem that the force deviation between each contouring mold core is large, resulting in a low service life of the multi-cavity aluminum alloy profile extrusion mold.

[0022] Please refer to Figures 1 to 4 As shown, the present invention provides an upper mold for a multi-cavity aluminum profile, comprising an upper mold body 1 and a contouring mold core 2; the upper mold body 1 has a shaping area 11 on its mold closing end face, the center point of the mold closing end face of the upper mold body 1 coincides with the center point of the shaping area, and a plurality of contouring mold cores 2 are provided in the shaping area 11.

[0023] As can be seen from the above description, the beneficial effects of the present invention are as follows: a shaping area 11 is provided on the mold closing end face of the upper mold body 1, and the center point of the shaping area 11 coincides with the center point of the mold closing end face of the upper mold body 1. Then, according to the position of the cavity 31 of the multi-cavity aluminum profile 3, a corresponding number of contour mold cores 2 are provided in the shaping area 11, so that the contour mold cores 2 can be located as close as possible to the center point of the mold closing end face of the upper mold body 1, thereby reducing the force deviation between each contour mold core 2.

[0024] Please refer to Figure 3 and Figure 4 As shown, in one embodiment, the center points of multiple contouring mold cores 2 are connected to form a contouring line segment, and the projection point of the center point of the contouring line segment on the mold closing end face of the upper mold body 1 coincides with the center point of the shaping area 11.

[0025] As can be seen from the above description, if the cross-sectional shape of the multi-cavity aluminum profile 3 is symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of multiple contour mold cores 2 on the mold closing end face of the upper mold body coincides with the center point of the shaping area 11, which can further reduce the force deviation between the contour mold cores 2.

[0026] Please refer to Figure 1 and Figure 2 As shown, in one embodiment, the shaping area 11 is centered on its own center point and has a positioning circle with a radius of 1mm to 3mm. The projection point of the center point of the contour line segment on the mold closing end face of the upper mold body 1 falls within the positioning circle.

[0027] The preferred positioning circle radii are 1mm, 2mm, and 3mm, with the most preferred positioning circle radius being 2mm.

[0028] As can be seen from the above description, if the cross-sectional shape of the multi-cavity aluminum profile 3 is not strictly symmetrical, the projection point of the center point of the contour line segment on the mold closing end face of the upper mold body 1 falls within the positioning circle, that is, the projection point of the center point of the contour line segment on the mold closing end face of the upper mold body 1 is as close as possible to the center point of the shaping area 11, thereby minimizing the force deviation between the contour mold cores 2.

[0029] Please refer to Figure 2 and Figure 4 As shown, the upper mold body 1 is further provided with a plurality of flow-diverting holes 12 surrounding the shaping area 11.

[0030] As can be seen from the above description, the diversion hole 12 helps the aluminum material flow from multiple directions to each contour mold core 2, which not only helps the forming of the multi-cavity aluminum profile 3, but also reduces the force deviation between each contour mold core 2.

[0031] Please refer to Figure 2 and Figure 4 As shown, in one optional embodiment, the diversion holes 12 are distributed around the center point of the shaping region 11 with the center point of the shaping region 11 as the center of symmetry.

[0032] As can be seen from the above description, distributing the flow holes 12 with the center point of the shaping area 11 as the center of symmetry helps to reduce the force deviation between each mold core 2.

[0033] The present invention provides a method for setting a contour mold core, including step S1: determining the centroid position of each cavity 31 of the multi-cavity aluminum profile 3;

[0034] Step S2: Based on the determined centroid positions of each cavity 31, set the corresponding shape of the contour mold core 2 in the shaping area 11 of the upper mold body 1;

[0035] Step S3: The cross-sectional shape of the multi-cavity aluminum profile 3 has the following conditions:

[0036] If the cross-sectional shape of the multi-cavity aluminum profile 3 is symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of the multiple contour mold cores 2 on the mold closing end face of the upper mold body 1 coincides with the center point of the shaping area 11.

[0037] If the cross-sectional shape of the multi-cavity aluminum profile 3 is not strictly symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of the multiple contour mold cores 2 onto the mold closing end face of the upper mold body 1 does not coincide with the center point of the shaping area 11.

[0038] Furthermore, in step S3, the cross-sectional shape of the multi-cavity aluminum profile 3 is as follows:

[0039] If the cross-sectional shape of the multi-cavity aluminum profile 3 is arc-shaped, the center points of the multiple contour mold cores 2 are connected by arc lines to form a curve segment with the same curvature as the cross-section of the multi-cavity aluminum profile 3.

[0040] If the cross-sectional shape of the multi-cavity aluminum profile 3 is linear, the center points of the multiple contour mold cores 2 are connected by a straight line to form a straight line segment parallel to the extension direction of the cross-section of the multi-cavity aluminum profile 3.

[0041] As can be seen from the above description, using line segments of corresponding forms to form contour lines according to the cross-section of multi-cavity aluminum profiles 3 of different shapes helps the center points of the contour lines to coincide or approach the center point of the shaping area 11.

[0042] Example 1

[0043] A type of upper mold for multi-cavity aluminum profiles, please refer to... Figures 1 to 4 As shown, the mold includes an upper mold body 1 and a contouring mold core 2. The upper mold body 1 has a shaping region 11 on its closing end face. The center point of the closing end face of the upper mold body 1 coincides with the center point of the shaping region. Multiple contouring mold cores 2 are arranged within the shaping region 11. A contouring line segment is formed by connecting the center points of the multiple contouring mold cores 2. A positioning circle with a radius of 2mm is drawn around the center point of the shaping region 11. The projection of the center point of the contouring line segment onto the closing end face of the upper mold body 1 falls within the positioning circle. Multiple flow-diverting holes 12 are provided on the upper mold body 1, and the flow-diverting holes 12 are distributed symmetrically around the center point of the shaping region 11.

[0044] Example 2

[0045] A type of upper mold for multi-cavity aluminum profiles, please refer to... Figure 3 and Figure 4 As shown, the system includes an upper mold body 1 and a contouring mold core 2. The upper mold body 1 has a shaping region 11 on its closing end face. The center point of the closing end face of the upper mold body 1 coincides with the center point of the shaping region. Multiple contouring mold cores 2 are disposed within the shaping region 11. A contouring line segment is formed by connecting the center points of the multiple contouring mold cores 2. The projection point of the center point of the contouring line segment onto the closing end face of the upper mold body 1 coincides with the center point of the shaping region 11. Multiple flow-diverting holes 12 are provided on the upper mold body 1, and the flow-diverting holes 12 are distributed symmetrically around the center point of the shaping region 11.

[0046] Example 3

[0047] A method for setting a contour mold core includes step S1: determining the centroid position of each cavity 31 of the multi-cavity aluminum profile 3;

[0048] Step S2: Based on the determined centroid positions of each cavity 31, set the corresponding shape of the contour mold core 2 in the shaping area 11 of the upper mold body 1;

[0049] Step S3: The cross-sectional shape of the multi-cavity aluminum profile 3 has the following conditions:

[0050] If the cross-sectional shape of the multi-cavity aluminum profile 3 is symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of the multiple contour mold cores 2 on the mold closing end face of the upper mold body 1 coincides with the center point of the shaping area 11.

[0051] If the cross-sectional shape of the multi-cavity aluminum profile 3 is not strictly symmetrical, the projection point of the center point of the contour line segment formed by connecting the center points of the multiple contour mold cores 2 onto the mold closing end face of the upper mold body 1 does not coincide with the center point of the shaping area 11.

[0052] When the cross-sectional shape of the multi-cavity aluminum profile 3 in step S3 has the following conditions:

[0053] If the cross-sectional shape of the multi-cavity aluminum profile 3 is arc-shaped, the center points of the multiple contour mold cores 2 are connected by arc lines to form a curve segment with the same curvature as the cross-section of the multi-cavity aluminum profile 3.

[0054] If the cross-sectional shape of the multi-cavity aluminum profile 3 is linear, the center points of the multiple contour mold cores 2 are connected by a straight line to form a straight line segment parallel to the extension direction of the cross-section of the multi-cavity aluminum profile 3.

[0055] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A profiling core setting method for an upper die of a multi-cavity aluminum profile, characterized in that: comprising steps S1: determining the centroid positions of each cavity of the multi-cavity aluminum profile; step S2: setting a corresponding shaped profiling core in the profiling area of the upper die body according to the determined centroid positions of each cavity; step S3: when the cross-sectional shape of the multi-cavity aluminum profile is as follows: if the cross-sectional shape of the multi-cavity aluminum profile is a symmetric shape, the center point of the profiling line segment formed by the center points of the plurality of profiling cores coincides with the projection point of the center point of the profiling area on the closing end face of the upper die body; if the cross-sectional shape of the multi-cavity aluminum profile is a non-strictly symmetric shape, the center point of the profiling line segment formed by the center points of the plurality of profiling cores does not coincide with the projection point of the center point of the profiling area on the closing end face of the upper die body; when the cross-sectional shape of the multi-cavity aluminum profile is as follows: if the cross-sectional shape of the multi-cavity aluminum profile is an arc shape, the center points of the plurality of profiling cores are connected by an arc to form a curve segment with the same curvature as the cross-sectional curvature of the multi-cavity aluminum profile; if the cross-sectional shape of the multi-cavity aluminum profile is a straight line shape, the center points of the plurality of profiling cores are connected by a straight line to form a straight line segment parallel to the extension direction of the cross-section of the multi-cavity aluminum profile; the upper die of the multi-cavity aluminum profile comprises an upper die body and a profiling core; the closing end face of the upper die body has a profiling area, the center point of the closing end face of the upper die body coincides with the center point of the profiling area, and a plurality of profiling cores are arranged in the profiling area. The center points of the plurality of profiling cores are connected to form a profiling line segment, and the center point of the profiling line segment coincides with the projection point of the center point of the profiling area on the closing end face of the upper die body. The profiling area has a positioning circle with a radius of 1mm to 3mm and the center point of the upper die body, and the projection point of the center point of the profiling line segment on the closing end face of the upper die body falls within the positioning circle. The upper die body is provided with a plurality of shunt holes around the profiling area. The shunt holes are distributed around the profiling area with the center point of the profiling area as the center of symmetry. ​ ​ ​ ​ ​ 2. The method of claim 1, wherein the method further comprises: providing a plurality of mold cavities in the mold; and providing a plurality of mold cores in the mold, each of the plurality of mold cores corresponding to one of the plurality of mold cavities. ​ 3. The method of claim 2, wherein the method further comprises: providing a plurality of profiled cores; and positioning the plurality of profiled cores in the plurality of cavities. ​ 4. The method of claim 1, wherein the method further comprises: providing a plurality of profiled cores; and positioning the plurality of profiled cores in the plurality of cavities. ​ 5. The method for setting the contour mold core of the upper mold of the multi-cavity aluminum profile according to claim 4, characterized in that: ​

Images