Aluminum alloy profile extrusion forming die

Abstract

The utility model discloses an aluminum alloy section extrusion forming die, which belongs to the technical field of section forming dies and comprises an upper die, a die core, a heat insulation block and a replaceable lower die. The replaceable lower die comprises a lower die fixing block and a replaceable lower die inner die, and the lower die inner die is inserted into the lower die fixing block; the upper side of the lower die inner die is spliced with the lower side of the upper die; feeding holes are uniformly formed in the upper side of the upper die in a circumferential array at equal intervals, and a combined insertion block used for being combined with the inner die of the lower die is fixedly mounted on the lower side of the upper die; the mold core is fixedly mounted in the center of the upper mold; a feeding cavity is formed between the interior of the upper die and the upper die; the mold core penetrates through the lower mold inner mold, and the mold core and the interior of the lower mold inner mold form a cavity used for forming. By means of the mode, when the outer contour of the profile needs to be changed, only the lower die inner die body needs to be replaced, the lower die fixing block and the cooling pipeline in the lower die fixing block do not need to be replaced, and therefore replacement operation is convenient, and the utilization rate of the lower die fixing block and the utilization rate of the cooling pipeline are increased.

Description

Technical Field

[0001] This utility model relates to the field of profile forming mold technology, specifically to an aluminum alloy profile extrusion forming mold. Background Technology

[0002] The production of aluminum profiles involves placing heated aluminum billets into an extruder and pushing them through an extrusion die to form the aluminum into the desired shape. The aluminum is then cooled by air or water cooling liquid to accelerate the hardening process.

[0003] For example, Chinese patent CN111451310B discloses a hot extrusion die for aluminum profiles. The die is provided with an upper die and a lower die. The upper die has a die core inside. The die core is connected to the inner wall of the upper die through a flow divider bridge. The die core and the inner wall of the lower die form a forming cavity.

[0004] However, in order to accelerate the hardening of the profile and avoid deformation of the lower die due to heat generated by the extrusion of the profile, a cooling channel is set in the outer die. When it is necessary to change the outer contour of the profile, the lower die needs to be replaced as a whole, and the cooling channel needs to be adjusted, which is quite inconvenient.

[0005] Based on this, this utility model designs an aluminum alloy profile extrusion molding die to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an aluminum alloy profile extrusion molding die.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An aluminum alloy profile extrusion die includes an upper die, a die core, a heat insulation block, and a replaceable lower die;

[0009] The replaceable lower mold includes a lower mold fixing block and a replaceable lower mold inner mold. The lower mold inner mold is inserted into the lower mold fixing block. The upper side of the lower mold inner mold is inserted into the lower side of the upper mold. The upper side of the upper mold has a feed port evenly spaced in a circular array. The lower side of the upper mold is fixedly installed with a combination plug for combining with the lower mold inner mold.

[0010] The mold core is fixedly installed in the center of the upper mold; the interior of the upper mold and the space between the upper molds form a feeding cavity; the mold core passes through the inner mold of the lower mold, and the interior of the mold core and the inner mold of the lower mold form a cavity for molding.

[0011] Furthermore, a heat insulation block is fitted on the lower side of the combined insert block; the heat insulation block is located between the upper mold and the lower mold fixing block.

[0012] Furthermore, the lower mold fixing block is equipped with a cooling pipe for injecting coolant; both ends of the cooling pipe are connected to an external cooling machine and pump via hoses.

[0013] Furthermore, an annular stop block for limiting the bottom of the lower mold inner mold is fixedly installed at the bottom of the lower mold fixing block.

[0014] Furthermore, the upper interior of the lower mold fixing block is fixedly equipped with positioning blocks for positioning the inner mold of the lower mold in a circular array.

[0015] Furthermore, a second step groove is provided on the lower side of the inner mold of the lower mold, and the second step groove is inserted into the annular stop block; a first step groove is provided on the upper side of the inner mold of the lower mold, and the first step groove is inserted into the combined insert block.

[0016] Furthermore, the bottom of the combined plug has positioning grooves arranged in a circumferential array at equal intervals, and a positioning protrusion that is inserted into the positioning groove is fixedly installed in the first step groove.

[0017] Furthermore, the lower mold inner mold outer side is fixedly installed with positioning slots in a circumferential array at equal intervals; the positioning slots are inserted into the positioning blocks.

[0018] Compared with the prior art, the advantages of this utility model are as follows: 1. The lower mold inner mold is inserted into the lower mold fixing block, and the lower mold fixing block strengthens the support of the lower mold inner mold; when it is necessary to change the inner contour of the profile, the upper mold with different mold cores installed can be combined with the lower mold inner mold; through the setting of the lower mold inner mold and the lower mold fixing block, when it is necessary to change the outer contour of the profile, only the lower mold inner mold can be replaced, without replacing the lower mold fixing block and the cooling pipes in the lower mold fixing block, thereby facilitating the replacement operation and improving the utilization rate of the lower mold fixing block and the cooling pipes;

[0019] 2. After inserting the heat insulation block into the outside of the combined insert block, combine the combined insert block on the lower side of the upper mold with the lower inner mold, and fix the upper mold, heat insulation block, lower inner mold and lower mold fixing block with bolts to complete the mold assembly; In use, align the raw material with the feed port and press it in. The raw material flows into the feed cavity through the feed port, and then into the cavity formed by the mold core and the lower inner mold through the feed cavity, and is extruded from the bottom of the lower inner mold to form the shape; The heat insulation block reduces the direct heat transfer between the upper mold and the lower mold fixing block; The cooling pipe in the lower mold fixing block cools the lower inner mold, avoiding the heat generated during the profile forming process from causing deformation of the lower inner mold and affecting the forming accuracy. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This utility model relates to a three-dimensional aluminum alloy profile extrusion die. Figure 1 ;

[0022] Figure 2 This is a front view of an aluminum alloy profile extrusion die according to the present invention;

[0023] Figure 3 For along Figure 2 A three-dimensional view after part of the structure has been removed along the AA direction;

[0024] Figure 4 This utility model relates to a three-dimensional aluminum alloy profile extrusion die. Figure 2 .

[0025] The labels in the diagram represent:

[0026] 1. Upper mold; 11. Feed port; 12. Feed cavity; 13. Combination insert block; 14. Positioning groove; 2. Mold core; 3. Heat insulation block; 4. Replaceable lower mold; 41. Lower mold inner mold; 411. Positioning slot; 412. First step groove; 413. Second step groove; 414. Positioning protrusion; 42. Lower mold fixing block; 421. Annular stop block; 422. Positioning insert block; 43. Cooling pipe. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0029] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-3 An aluminum alloy profile extrusion die includes an upper die 1, a die core 2, a heat insulation block 3, and a replaceable lower die 4;

[0030] The replaceable lower mold 4 includes a lower mold fixing block 42 and a replaceable lower mold inner mold 41. The lower mold inner mold 41 is inserted into the lower mold fixing block 42. The upper side of the lower mold inner mold 41 is inserted into the lower side of the upper mold 1. The upper side of the upper mold 1 is provided with feed ports 11 evenly spaced in a circular array. The lower side of the upper mold 1 is fixedly installed with a combination insert 13 for combining with the lower mold inner mold 41.

[0031] The mold core 2 is fixedly installed at the center of the upper mold 1; the interior of the upper mold 1 and the space between the upper mold 1 form the feeding cavity 12; the mold core 2 passes through the lower inner mold 41, and the interior of the mold core 2 and the lower inner mold 41 form a cavity for molding.

[0032] A heat insulation block 3 is fitted on the lower side of the combined insert block 13; the heat insulation block 3 is located between the upper mold 1 and the lower mold fixing block 42.

[0033] The lower mold fixing block 42 is provided with a cooling pipe 43 for injecting coolant; both ends of the cooling pipe 43 are connected to an external cooling machine and pump through hoses.

[0034] In this embodiment, when the aluminum alloy profile extrusion die is working normally, the lower die inner mold 41 is inserted into the lower die fixing block 42, and the lower die fixing block 42 strengthens the support of the lower die inner mold 41. When it is necessary to change the inner contour of the profile, the upper die 1 with different die cores 2 can be combined with the lower die inner mold 41. Through the setting of the lower die inner mold 41 and the lower die fixing block 42, when it is necessary to change the outer contour of the profile, only the lower die inner mold 41 needs to be replaced, without replacing the lower die fixing block 42 and the cooling pipe 43 inside the lower die fixing block 42, thereby facilitating the replacement operation and improving the utilization rate of the lower die fixing block 42 and the cooling pipe 43. After inserting the heat insulation block 3 into the outside of the combined insert 13, the upper die... The lower combination insert 13 is combined with the lower mold inner mold 41, and the upper mold 1, heat insulation block 3, lower mold inner mold 41 and lower mold fixing block 42 are fixed by bolts to complete the mold assembly. In use, the raw material is aligned with the feed port 11 and pressed in. The raw material flows into the feed chamber 12 through the feed port 11, and then into the cavity formed by the mold core 2 and the lower mold inner mold 41 through the feed chamber 12, and is extruded from the bottom of the lower mold inner mold 41. The heat insulation block 3 reduces the direct heat transfer between the upper mold 1 and the lower mold fixing block 42. The cooling pipe 43 in the lower mold fixing block 42 cools the lower mold inner mold 41 to prevent the heat generated during the profile forming process from causing the lower mold inner mold 41 to deform and affecting the forming accuracy.

[0035] Example 2: In some embodiments, such as Figures 1-4 As shown, in a preferred embodiment of the present invention, the bottom of the lower mold fixing block 42 is fixedly equipped with an annular stop block 421 for limiting the bottom of the lower mold inner mold 41;

[0036] The lower mold fixing block 42 has a positioning insert 422 fixedly installed in a circular array on the upper side of the inner side for positioning the lower mold inner mold 41; the lower side of the lower mold inner mold 41 is provided with a second step groove 413, which is inserted into the annular stop block 421; the upper side of the lower mold inner mold 41 is provided with a first step groove 412, which is inserted into the combined insert block 13.

[0037] The bottom of the combined plug 13 is provided with positioning grooves 14 in a circumferential array at equal intervals, and a positioning protrusion 414 that is inserted into the positioning groove 14 is fixedly installed in the first step groove 412.

[0038] The lower inner mold 41 has positioning slots 411 fixedly installed in a circular array with equal spacing on the outer side; the positioning slots 411 are inserted into the positioning blocks 422.

[0039] In this embodiment, when the lower mold inner mold 41 and the lower mold fixing block 42 are working normally, the positioning slot 411 on the outside of the lower mold inner mold 41 is aligned with the positioning insert 422 inside the lower mold fixing block 42, and then the lower mold inner mold 41 is inserted into the lower mold fixing block 42 until the annular stop 421 is inserted into the second step groove 413. The annular stop 421 and the second step groove 413 block and limit the lower mold inner mold 41. The positioning groove 14 at the bottom of the combined insert 13 is aligned with the positioning protrusion 414 on the first step groove 412, and then the combined insert 13 is inserted into the first step groove 412. The combined insert 13 and the lower mold inner mold 41 are positioned by the positioning groove 14 and the positioning protrusion 414. The assembly of the upper mold 1 and the lower mold inner mold 41 is completed.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An aluminum alloy profile extrusion forming die, comprising an upper die (1), a die core (2), an insulation block (3) and a replaceable lower die (4), characterized in that: the replaceable lower die (4) comprises a lower die fixed block (42) and a replaceable lower die inner die (41), the lower die inner die (41) is inserted into the lower die fixed block (42); the upper side of the lower die inner die (41) is inserted into the lower side of the upper die (1); the upper side of the upper die (1) is uniformly and equidistantly provided with feeding ports (11) in a circumferential array; the lower side of the upper die (1) is fixedly provided with a combined plug (13) for combining with the lower die inner die (41); the die core (2) is fixedly installed at the center of the upper die (1); the inside of the upper die (1) and the upper die (1) form a feeding cavity (12); the die core (2) passes through the lower die inner die (41), and the inside of the die core (2) and the lower die inner die (41) forms a cavity for forming.

2. The aluminum alloy profile extrusion forming die of claim 1, wherein, The lower side of the combined plug (13) is provided with the insulation block (3); the insulation block (3) is located between the upper die (1) and the lower die fixed block (42).

3. The aluminum alloy profile extrusion forming die of claim 1, wherein, The lower die fixed block (42) is provided with a cooling pipeline (43) for injecting cooling liquid; both ends of the cooling pipeline (43) are communicated with an external cooling machine and a pump machine through a hose.

4. The aluminum alloy profile extrusion forming die of claim 1, wherein, The bottom of the lower die fixed block (42) is fixedly provided with an annular stop block (421) for limiting the bottom of the lower die inner die (41).

5. The aluminum alloy profile extrusion forming die of claim 1 wherein, The upper side of the lower die fixed block (42) is fixedly provided with a positioning plug (422) for positioning the lower die inner die (41) in a circumferential array.

6. The aluminum alloy profile extrusion forming die of claim 4, wherein, The lower side of the lower die inner die (41) is provided with a second stepped groove (413), and the second stepped groove (413) is inserted into the annular stop block (421); the upper side of the lower die inner die (41) is provided with a first stepped groove (412), and the first stepped groove (412) is inserted into the combined plug (13).

7. The aluminum alloy profile extrusion forming die of claim 6, wherein, The bottom of the combined plug (13) is provided with a positioning groove (14) in a circumferential array and equidistantly; the first stepped groove (412) is fixedly provided with a positioning protrusion (414) inserted into the positioning groove (14).

8. The aluminum alloy profile extrusion forming die of claim 5, wherein, The outer side of the lower die inner die (41) is fixedly provided with a positioning insertion groove (411) in a circumferential array and equidistantly; the positioning insertion groove (411) is inserted into the positioning plug (422).

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