Aluminum profile extrusion die with adjustable die core structure

Abstract

The invention relates to the technical field of aluminum profile extrusion dies, and discloses an aluminum profile extrusion die with an adjustable die core structure, the aluminum profile extrusion die comprises a placing seat, the placing seat is internally provided with a die set capable of being used for extruding an aluminum profile; the die set comprises an upper die base, the outer surface of the upper die base is attached to the inner wall of the containing base, and the upper die base is detachably provided with a lower die base through pins arranged on the outer surface of the upper die base. The aluminum profile extrusion die with the adjustable die core structure can effectively solve the problems that in the prior art, a traditional aluminum profile die is generally of a fixed structure, the appearance of a working tape in a die core is difficult to change once the appearance is determined, and when aluminum profile finished products of different shapes need to be produced, the whole die needs to be replaced, and the production cost is high. And the problems that the production efficiency is greatly reduced and the production cost is high due to the fact that a large amount of manpower, material resources and time need to be input in the manufacturing process of one set of mold are solved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum extrusion dies, and in particular to an aluminum profile extrusion die with an adjustable die core structure. Background Art

[0002] Aluminum profiles are alloy materials with aluminum as the main component, which are widely used in industrial and construction fields. In the aluminum profile processing industry, aluminum profile molds play a key role in the production of aluminum profiles. With the development of industry and the increasing diversification of market demand, the application scenarios of aluminum profiles are constantly expanding. From construction, automobile manufacturing to electronic equipment and other fields, the requirements for the shapes and specifications of aluminum profiles are becoming more and more diverse.

[0003] In the prior art, traditional aluminum profile molds are usually fixed structures, and the appearance of the working belt inside the mold core is difficult to change once it is determined. When it is necessary to produce aluminum profile products of different shapes, it is often necessary to replace the entire mold. The production cost of the mold is high. The manufacture of a set of molds requires a lot of manpower, material resources and time, resulting in a significant decrease in production efficiency and high production costs. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an aluminum profile extrusion die with an adjustable core structure, which can effectively solve the problems in the prior art that traditional aluminum profile molds are usually fixed structures, and the appearance of the working belt inside the core is difficult to change once it is determined. When it is necessary to produce aluminum profile products of different shapes, it is often necessary to replace the entire mold, and the production cost of the mold is high. The manufacture of a set of molds requires a large amount of manpower, material resources and time, resulting in a significant decrease in production efficiency and high production costs.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an aluminum profile extrusion die with an adjustable die core structure, comprising: A placement seat, wherein a module for extruding aluminum profiles is arranged inside the placement seat; The mold assembly includes an upper mold base, the outer surface of which is in contact with the inner wall of the placement base, the upper mold base is detachably mounted with a lower mold base via pins arranged on its outer surface, a welding chamber is provided on one side of the lower mold base close to the upper mold base, the lower mold base is detachably mounted with a mold core assembly via a placement cavity provided inside the lower mold base, and the placement cavity is communicated with the interior of the welding chamber; Among them, the core assembly includes a core block tightly fitting with the inner wall of the placement cavity, a slot is provided on the side of the core block away from the upper mold base, and a connector sliding with the inner wall of the slot is provided on the side of the inner wall of the placement cavity away from the upper mold base.

[0006] Furthermore, the connecting member includes a limiting column, the bottom of which is fixedly connected to a side of the inner wall of the placement cavity away from the upper mold base, and the limiting column is slidably connected to a reciprocating block via a sliding groove provided on its circumferential outer surface.

[0007] Furthermore, four limiting columns are provided and are distributed in a circle around the core block, the four slide grooves are all designed with the notch facing downward, and the outer end of the reciprocating block is designed with a curved surface.

[0008] Furthermore, the inner wall of the placement seat adopts a circular design that fits the outer surface of the module, and the inner wall of the placement seat is provided with a U-shaped groove and a positioning groove, the U-shaped groove is connected to the inside of the positioning groove, and the circular outer surface of the lower mold seat is fixedly connected with a sliding buckle, and the sliding buckle fits the inner wall of the U-shaped groove.

[0009] Furthermore, the U-shaped groove and the positioning groove are distributed vertically, and the intersection of the U-shaped groove and the positioning groove adopts an arc angle design.

[0010] Furthermore, a sliding groove is provided on the inner wall surface of the core block, a support plate is fixedly connected to the inside of the sliding groove, a working belt is slidably connected to the inside of the sliding groove, and a detachable design is adopted between the working belt and the core block.

[0011] Furthermore, the working belt adopts a hollow design, and the inner wall surface of the working belt fits with the outer surface of the support plate, and the inner wall surface of the working belt and the outer surface of the support plate are both provided with friction grooves.

[0012] Furthermore, a convex die that cooperates with the outer surface of the working belt to extrude the aluminum profile is fixedly connected to one side of the upper die base close to the lower die base.

[0013] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a lower die base and a core assembly. The core assembly is placed in a placement cavity inside the lower die base, and is detachably designed with the lower die base as a whole. The lower die base is embedded in the core assembly through a limiting column. When the notch of the slide groove in the limiting column faces downward, a certain force is applied to the lower die base and the core assembly. The outer surface of the lower die base fits with the limiting baffle, and the two generate relative force. The reciprocating block in the limiting column quickly enters the limiting cavity connected to the inside of the slot under the action of gravity, thereby realizing the fixing action of the lower die base and the core assembly. The convex mold of the upper die base determines the inner shape of the finished product, and the shape surrounded by the working belt in the core assembly determines the outer shape of the finished product. It can be used to produce different products with consistent internal dimensions and shapes, can flexibly adapt to these changes, improve the utilization rate of the module, can meet diversified production needs, and reduce the cost of replacing molds for enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of a placement seat according to an embodiment of the present invention; Figure 3 It is a schematic diagram of another angle cross-sectional structure of the placement seat according to an embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 3 A schematic diagram of the structure with a partial enlargement at B in the middle; Figure 5 This is a schematic diagram of the separation structure of the module according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the separation structure of the lower mold base and the mold core assembly according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a core assembly according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the separation structure of the core block and the working belt according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the structure of a placement seat according to an embodiment of the present invention; Fig.10 For the embodiment of the present invention Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0016] The numbers in the figure represent respectively: 1. placement seat; 11. U-shaped groove; 12. positioning groove; 2. mold assembly; 21. upper mold seat; 211. punch; 22. lower mold seat; 221. placement cavity; 224. slide buckle; 23. core assembly; 231. core block; 2311. slot; 2312. sliding groove; 232. support plate; 233. working belt; 2331. friction groove; 24. connecting piece; 241. limiting column; 242. reciprocating block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention will be further described below in conjunction with the embodiments. Example

[0019] See also Figure 1-Figure 10 The present invention provides a technical solution: an aluminum profile extrusion die with an adjustable die core structure, comprising: A placement seat 1 is provided inside which a module 2 for extruding aluminum profiles is arranged; a fixing piece for pressing down the module 2 to prevent the module 2 from moving up and down is also arranged on the top of the placement seat 1.

[0020] The mold assembly 2 includes an upper mold base 21, the outer surface of which is in contact with the inner wall of the placement base 1, and the upper mold base 21 is detachably mounted with a lower mold base 22 via pins arranged on its outer surface, and a welding chamber is provided on one side of the lower mold base 22 close to the upper mold base 21, and the lower mold base 22 is detachably mounted with a mold core assembly 23 via a placement cavity 221 arranged inside the lower mold base 22, and the placement cavity 221 is communicated with the interior of the welding chamber; The core assembly 23 includes a core block 231 that fits tightly with the inner wall of the placement cavity 221. A slot 2311 is provided on the side of the core block 231 away from the upper mold base 21. A connector 24 that slides with the inner wall of the slot 2311 is provided on the side of the inner wall of the placement cavity 221 away from the upper mold base 21. The slot 2311 is provided with four circumferences distributed inside the core block 231.

[0021] The connecting member 24 includes a limiting column 241, the bottom of which is fixedly connected to the inner wall of the placement cavity 221 away from the upper mold base 21, and the limiting column 241 is slidably connected to the reciprocating block 242 through a sliding groove provided on the outer surface of its circumference. A limiting groove connected to the inside of the card slot 2311 is provided inside the core block 231, and when the reciprocating block 242 is in the expanded state, the outer surface of the reciprocating block 242 fits the inner wall of the limiting groove.

[0022] There are four limit posts 241 which are arranged in a circle around the core block 231 . The four slide grooves are designed with the notches facing downwards, and the outer end of the reciprocating block 242 is designed with an arc surface.

[0023] The inner wall of the placement seat 1 adopts a circular design that fits the outer surface of the module 2. The inner wall of the placement seat 1 is provided with a U-shaped groove 11 and a positioning groove 12. The U-shaped groove 11 is communicated with the interior of the positioning groove 12. The circular outer surface of the lower mold seat 22 is fixedly connected with a slide buckle 224, which fits the inner wall of the U-shaped groove 11. There are two positioning grooves 12, which are symmetrically distributed with the mid-vertical line of the placement seat 1 as the center.

[0024] The U-shaped groove 11 and the positioning groove 12 are vertically distributed, and the intersection of the U-shaped groove 11 and the positioning groove 12 adopts an arc angle design.

[0025] The inner wall surface of the core block 231 is provided with a sliding groove 2312, the interior of the sliding groove 2312 is fixedly connected with a support plate 232, the interior of the sliding groove 2312 is slidably connected with a working belt 233, the working belt 233 and the core block 231 are detachably designed, and the interior of the core block 231 is hollow.

[0026] The working belt 233 is hollow in design, and the inner wall surface of the working belt 233 is in contact with the outer surface of the support plate 232. Both the inner wall surface of the working belt 233 and the outer surface of the support plate 232 are provided with friction grooves 2331. There are four working belts 233 arranged in a circle around the core block 231. Any working belt 233 is symmetrical in design, and can be used to remove the working belt 233 and swap the upper and lower sides when the part close to the upper die seat 21 is worn, thereby extending the service life of the module 2.

[0027] A convex die 211 is fixedly connected to one side of the upper die base 21 close to the lower die base 22 and cooperates with the outer surface of the working belt 233 to extrude the aluminum profile.

[0028] The process of combining module 2 with seat 1: In actual application, the module 2 is placed as a whole inside the circumference of the placement seat 1, and the placement seat 1 is designed as a U-shaped opening. After the module 2 is placed stably, the upper fixing part can be pressed down to fix the module 2 inside the placement seat 1 to ensure stability during the extrusion process.

[0029] The upper die base 21, the lower die base 22 and the core assembly 23 are designed with a separable structure. The punch 211 on the outside of the upper die base 21 determines the internal shape of the extruded aluminum, and the working belt 233 determines the outer surface shape of the aluminum profile after extrusion. The space enclosed by the punch 211 and the working belt 233 determines the external shape of the extruded shape.

[0030] Taking the extrusion of a hollow square tube as an example, the die 211 is square, and the shape formed by the working belt 233 inside the die core block 231 is also square. The working belt 233 inside the die core block 231 adopts an open split design, and the two adjacent surfaces of the working belt 233 and the die 211 are parallel to each other. The shape of the side of the working belt 233 close to the die 211 determines the external shape of the square aluminum material. The working belt 233 of different shapes can be replaced in the same die 2, so as to complete different products with the same internal size and shape, thereby improving the utilization rate of the product.

[0031] Determine the aluminum profile to be processed, select the upper die seat 21 that matches its internal shape and size, and then select the appropriate core assembly 23 according to the needs. The staff inserts the four working belts 233 into the sliding groove 2312. At this time, the outer surface of the working belt 233 fits the inner wall of the sliding groove 2312. The working belt 233 is within its movable range and is at the farthest position from the center of the lower die seat 22. The working belt 233 adopts a hollow design, and the inner wall surface of the working belt 233 fits the outer surface of the support plate 232. According to the production needs, use tools such as vernier calipers to measure the distance of the working belt 233 protruding from the hollow surface inside the core block 231, and pull the four working belts 233 outwards in turn for a certain distance to meet the required size.

[0032] During this process, the friction groove 2331 on the inner surface of the working belt 233 fits tightly with the friction groove 2331 on the outer surface of the support plate 232. The working belt 233, the support plate 232 and the core block 231 are placed crosswise, with a large contact area and high friction. After adjusting the position, they have a certain stability and are difficult to move. The position of the working belt 233 is pre-fixed.

[0033] Slowly lower the lower die base 22 from the U-shaped opening at the top of the placement seat 1. During this process, the two slide buckles 224 are in the same horizontal plane and are both located on the upper side of the outer surface of the lower die base 22. It is necessary to ensure that the slide buckle 224 on the outer surface of the lower die base 22 is at the same verticality as the U-shaped groove 11. During this process, the outer circumferential surface of the slide buckle 224 fits the inner wall of the U-shaped groove 11 and moves downward along the U-shaped groove 11 for stable placement. A limit baffle is provided on the outer surface of the placement seat 1, and the welding chamber in the lower die base 22 is on the side away from the limit baffle. At this time, the notch of the slide groove in the limit column 241 inside the placement cavity 221 faces upward, and the reciprocating block 242 is located inside the limit column 241 under the action of gravity.

[0034] Place the adjusted core assembly 23 from the direction of the welding chamber to the inside of the placement cavity 221, and the limiting column 241 inside the placement cavity 221 in the lower mold base 22 smoothly enters the inner wall of the slot 2311 at the bottom of the core block 231, wherein the outer surface of the core block 231 adopts a non-circular design, and the outer surface of the core block 231 fits tightly with the inner wall of the placement cavity 221. Since the reciprocating block 242 is in a contracted state at this time, no collision will occur during the combination of the core block 231 and the lower mold base 22. The side of the core block 231 close to the lower mold base 22 is still at a certain distance from the inner wall of the placement cavity 221, the limiting column 241 is inside the slot 2311, and the outer end of the limiting column 241 is slightly fitted with the side of the working belt 233 close to the slot 2311.

[0035] After the core assembly 23 is placed, the lower mold base 22 is rotated inside the placement base 1 so that the outer surface of the slide buckle 224 fits against the inner wall of the U-shaped groove 11. During the rotation of the lower mold base 22, the direction of the slide groove opening on the outer surface of the limiting column 241 changes with the rotation of the lower mold base 22, and the opening gradually changes from upward to downward. When the slide buckle 224 is completely in contact with the inner wall of the positioning groove 12, it means that the opening of the opening on the outer surface of the limiting column 241 is facing upward. Under the action of gravity, the reciprocating block 242 has a downward trend inside the slot 2311.

[0036] When the slide buckle 224 moves to the junction of the U-shaped groove 11 and the positioning groove 12, under the guidance of the positioning groove 12, the lower mold base 22 and the mold core assembly 23 inside the lower mold base 22 are integrally moved radially inside the placement seat 1 until the outer surface of the lower mold base 22 fits the outer surface of the limiting baffle. At this time, the opening of the slide groove on the outer surface of the limiting column 241 faces directly downward, and the outer surface of the reciprocating block 242 inside the slide groove fits the inner wall of the card slot 2311, and the reciprocating block 242 is still in a retracted state (a limiting cavity connected to the inside of the card slot 2311 is opened inside the mold core block 231, and when the reciprocating block 242 is unfolded, its outer surface fits the inner wall of the limiting cavity).

[0037] The core assembly 23 is fixed to the lower die base 22 by using a press for aluminum profile extrusion behind the placement seat 1, and the output end of the press fits with the side of the core block 231 away from the limit baffle. Under the action of pressure, the core assembly 23 moves into the lower die base 22, and the outer side of the lower die base 22 fits with the limit baffle and cannot move forward further. The lower die base 22 and the core assembly 23 generate relative force under the action of pressure and the limit baffle.

[0038] As the pressure is continued, the core assembly 23 is completely embedded in the lower mold base 22, and the side of the core block 231 close to the limiting baffle is completely in contact with the inner wall of the placement cavity 221. Since the length of the limiting column 241 is slightly greater than the depth of the internal slot 2311 of the core block 231, the outer end of the limiting column 241 passes through the slot 2311, enters the intersection connected to the inside of the sliding slot 2312, and contacts the outer surface of the working belt 233, squeezing the working belt 233 away from the slot 2311, causing the working belt 233 and the support plate 232 to be slightly deformed (the working belt 233 and the support plate 232 are staggered, and under the squeezing force of the limiting column 241, the contact surfaces between the working belt 233, the support plate 232 and the sliding slot 2312 in the core block 231 are all in a tightly fitted state, and the friction grooves 2331 on the outer surfaces of the working belt 233 and the support plate 232 are mutually engaged, which improves the stability of this part).

[0039] During this process, when there is no gap between the contact surfaces of the working belt 233, the support plate 232 and the core block 231, the slot opening on the outer surface of the limiting column 241 is completely consistent with the slot opening of the limiting cavity, and the reciprocating block 242 inside the limiting column 241 falls under the action of gravity and enters the limiting cavity, and the outer surface of the reciprocating block 242 fits the inner wall of the limiting cavity, and the press stops applying pressure and recovers backward. At this point, the working belt 233, the core block 231 and the lower die seat 22 are fixed to form a whole, completing the fixing action of the lower die. The upper die seat 21 is directly placed in the placement seat 1, and the positioning pins set on the outer surface of the upper die seat 21 are used to fix the two. The mold assembly 2 is fixed inside the placement seat 1 by pressing down the fixing piece above the placement seat 1 to ensure stability during the extrusion process.

[0040] Aluminum profile extrusion process: After preheating the product, the heated aluminum rod raw material is loaded from the side of the upper die base 21 away from the lower die base 22. The aluminum rod passes through the diversion holes opened in the circular array inside the upper die base 21 and is evenly divided into several parts. It enters the interior of the upper die base 21 and the lower die base 22 and reaches the welding chamber to be fused again. Under the action of the press, the aluminum material is extruded from the gap surrounded by the working belt 233 and the punch 211 to the hollow part of the core block 231, and the required shape and size of the aluminum profile is obtained.

[0041] The process of taking the module 2 out from the inside of the placement seat 1: During the stretching process of aluminum profiles, strong relative sliding friction will occur between the aluminum alloy and the surface of the working belt 233. The aluminum alloy itself has a certain hardness and strength. The aluminum alloy also contains some hard phases. These hard phases will grind the surface of the working belt 233 like abrasive particles during the metal flow process, accelerating wear. As the number of extrusions increases, this friction will continue to wear the surface of the working belt 233, resulting in a decrease in the dimensional accuracy of the working belt 233 and an increase in the overall wall thickness of the stretched product. The staff uses tools such as vernier calipers to measure the distance from the outer surface of the working belt 233 protruding from the inside of the core block 231. If it exceeds the required range, the position of the working belt 233 needs to be adjusted.

[0042] First, separate the lower die base 22 from the upper die base 21, and take the upper die base 21 upward from the U-shaped opening of the placement seat 1. At this time, the lower die base 22 is connected to the inside of the positioning groove 12 through the sliding buckle 224 on its circumferential outer surface, and the lower die base 22 is moved to the side away from the limiting baffle until the sliding buckle 224 reaches the connection between the U-shaped groove 11 and the positioning groove 12. Under the guidance of the U-shaped groove 11, the lower die base 22 changes from axial movement along its axis to rotation around its axis. When the lower die base 22 rotates inside the U-shaped groove 11 through the sliding buckle 224 set on its outer surface, during this process, the slots of the internal slides of the multiple limiting columns 241 gradually change from facing downward to upward, until the lower die base 22 rotates 180 degrees, and the slots of the internal slides of the limiting columns 241 face upward. Under the action of friction, the reciprocating block 242 will not fall directly into the interior of the limiting column 241. A certain pressure is applied to the side of the core block 231 close to the upper mold base 21, so that a certain gap is generated between the outer surface of the reciprocating block 242 and the inner wall of the limiting cavity. Under the action of gravity, the reciprocating block 242 quickly shrinks to the interior of the limiting column 241, and the lower mold base 22 and the core assembly 23 are no longer constrained by the connecting piece 24, so the core assembly 23 can be separated from the cavity 221 in the lower mold base 22.

[0043] During the separation of the core assembly 23 from the lower die base 22, the side of the working belt 233 close to the slot 2311 is no longer squeezed, and the working belt 233 and the support plate 232 return to their initial state, with the adjacent surfaces of their various parts slightly fitting together through the friction groove 2331. After measuring the wear data of the working belt 233, the staff slightly moves the working belt 233 outward according to the required size until it reaches the required position and stops, and pre-fixes it again according to the friction between the working belt 233 and the support plate 232, and can be installed in the lower die base 22 and used again with the upper die base 21.

[0044] In summary, the extrusion die has the following advantages: Advantage 1: In module 2, the lower mold base 22 and the core assembly 23 adopt a detachable design. Different core blocks 231 can be replaced according to actual production needs to meet the needs of different shapes. The punch 211 in the upper mold base 21 determines the inner shape of the finished product, and the shape of the working belt 233 in the core assembly 23 determines the outer shape of the finished product. It can be suitable for the production of different products with consistent internal dimensions and shapes, can flexibly adapt to these changes, improve the utilization rate of module 2, can meet diversified production needs, and reduce the cost of replacing molds for enterprises.

[0045] Advantage 2: The working belt 233 and the core block 231 adopt a detachable design, and can realize radial movement relative to the module 2 in the sliding groove 2312. By controlling the distance that the working belt 233 protrudes from the inside of the core block 231, the wall thickness of the finished aluminum profile can be adjusted. After wear, the working belt 233 can be restored to its accuracy by moving its position or adjusting the flatness of the outer surface, and put into use again, thereby reducing the maintenance cost and replacement frequency of the module 2 and extending the service life of the module 2.

[0046] Advantage 3: During the fixing process of the lower die base 22 and the core assembly 23, the limiting column 241 penetrates the slot 2311, the core block 231 is pressed into the lower die base 22, and the reciprocating block 242 enters the limiting cavity under the action of gravity, forming a mechanical lock, further fixing and preventing loosening. While the connector 24 connects the core assembly 23 to the lower die base 22, the outer end of the limiting column 241 squeezes the working belt 233, so that it fits closely with the contact surfaces of the support plate 232 and the core block 231, which can ensure that the position of the working belt 233 is fixed and unchanged, and ensure the precision and quality of the finished product.

[0047] Advantage 4: The interior of the working belt 233 is a hollow structure, and the working belt 233 adopts a vertically symmetrical structural design. In the initial state, the outer surface of the working belt 233 is close to the upper mold base 21, and this part is severely worn due to the influence of temperature and pressure. After using it for a period of time, the upper and lower positions of the working belt 233 can be changed so that the part initially close to the upper mold base 21 is changed to be far away from the upper mold base 21, and the bottom side with less wear is changed to the upper side, thereby improving the repeated utilization rate of the module 2 and extending the service life of the module 2.

[0048] Advantage 5: The working belt 233, the support plate 232 and the core block 231 are placed crosswise, the contact area is increased, and the adjacent surfaces are fitted through the friction groove 2331, the friction force is large, and it has a certain stability after adjusting the position and is difficult to move. This not only facilitates the adjustment of the position of the working belt 233 according to production needs, but also ensures the position accuracy of the working belt 233 during the movement process.

[0049] Advantage 6. When the lower die base 22 is rotated, the U-shaped groove 11 is converted into the positioning groove 12 to realize the radial limitation of the die set 2, effectively preventing the rotational displacement during the aluminum profile extrusion process, ensuring the stability of the aluminum profile extrusion, and improving the quality of the finished product. At the same time, the lower die base 22 can be easily rotated inside the U-shaped groove 11 through the sliding buckle 224, which facilitates the disassembly and installation of the core assembly 23 and the lower die base 22.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aluminum profile extrusion die with an adjustable core structure, characterized in that: include: A placement seat (1), wherein a module (2) for extruding aluminum profiles is arranged inside the placement seat (1); The mold assembly (2) comprises an upper mold base (21), the outer surface of the upper mold base (21) is in contact with the inner wall of the placement base (1), the upper mold base (21) is detachably mounted with a lower mold base (22) via pins arranged on the outer surface thereof, a welding chamber is provided on a side of the lower mold base (22) close to the upper mold base (21), the lower mold base (22) is detachably mounted with a mold core assembly (23) via a placement cavity (221) provided therein, and the placement cavity (221) is communicated with the interior of the welding chamber; The core assembly (23) comprises a core block (231) that fits tightly against the inner wall of the placement cavity (221); a slot (2311) is provided on a side of the core block (231) away from the upper die seat (21); and a connecting piece (24) that slides against the inner wall of the slot (2311) is provided on a side of the inner wall of the placement cavity (221) away from the upper die seat (21).

2. The aluminum profile extrusion die with an adjustable core structure according to claim 1, characterized in that: The connecting member (24) comprises a limiting column (241), the bottom of which is fixedly connected to a side of the inner wall of the placement cavity (221) away from the upper die seat (21), and the limiting column (241) is slidably connected to a reciprocating block (242) via a sliding groove provided on its circumferential outer surface.

3. The aluminum profile extrusion die with an adjustable core structure according to claim 2, characterized in that: Four of the limit posts (241) are arranged and are circumferentially arranged around the core block (231); the four slide grooves are all designed with the notch facing downwards; and the outer end of the reciprocating block (242) is designed with a curved surface.

4. The aluminum profile extrusion die with an adjustable core structure according to claim 1, characterized in that: The inner wall of the placement seat (1) is of a circular design that fits the outer surface of the mold assembly (2). The inner wall of the placement seat (1) is provided with a U-shaped groove (11) and a positioning groove (12). The U-shaped groove (11) is connected to the inside of the positioning groove (12). The circumferential outer surface of the lower mold seat (22) is fixedly connected with a sliding buckle (224), and the sliding buckle (224) fits the inner wall of the U-shaped groove (11).

5. The aluminum profile extrusion die with an adjustable core structure according to claim 4, characterized in that: The U-shaped groove (11) and the positioning groove (12) are distributed vertically, and the intersection of the U-shaped groove (11) and the positioning groove (12) adopts an arc angle design.

6. The aluminum profile extrusion die with an adjustable core structure according to claim 1, characterized in that: The inner wall surface of the mold core block (231) is provided with a sliding groove (2312), the interior of the sliding groove (2312) is fixedly connected to a support plate (232), the interior of the sliding groove (2312) is slidably connected to a working belt (233), and a detachable design is adopted between the working belt (233) and the mold core block (231).

7. The aluminum profile extrusion die with an adjustable core structure according to claim 6, characterized in that: The working belt (233) adopts a hollow design, and the inner wall surface of the working belt (233) fits the outer surface of the support plate (232). The inner wall surface of the working belt (233) and the outer surface of the support plate (232) are both provided with friction grooves (2331).

8. The aluminum profile extrusion die with an adjustable core structure according to claim 7, characterized in that: A convex die (211) that cooperates with the outer surface of the working belt (233) to extrude the aluminum profile is fixedly connected to one side of the upper die seat (21) close to the lower die seat (22).

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