Extrusion die applied to multi-rib aluminum profile

Abstract

The utility model discloses an extrusion die applied to a multi-rib aluminum profile, which relates to the technical field of aluminum profile extrusion dies and specifically comprises a first die holder, a cylindrical cavity is arranged at the axis of the first die holder, and a first annular groove is arranged at the edge of one end of the cylindrical cavity; a second annular groove is formed in the surface of the cylindrical die body, the surface of the cylindrical die body is of a stepped structure, the second annular groove is formed in the cylindrical cavity, the end of the cylindrical die body is arranged in the first annular groove, and the end faces of the cylindrical die body and the first annular groove are flush; a forming cavity is formed in the axis of the cylindrical die body, and at least one rib position groove extending towards the interior of the cylindrical die body is formed in the inner wall of the forming cavity. When the die is used, after the die reaches the service life, the cylindrical die body and the hollow die body can be independently detached from the carrier and replaced, compared with a traditional whole upper die and a traditional whole lower die, the cylindrical die body and the hollow die body are small in size, materials used for machining the cylindrical die body and the hollow die body can be greatly reduced, and materials used for manufacturing the upper die and the lower die are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum profile extrusion dies, in particular to an extrusion die used for multi-rib aluminum profiles. Background Art

[0002] Aluminum extrusion dies are an important tool in the aluminum extrusion process, used to achieve the extrusion molding of aluminum profiles. Extrusion dies are specialized dies consisting of a die body and die accessories. Their shape and size are designed and manufactured according to the cross-sectional size and shape of the aluminum profile.

[0003] Molds have a limited service life and must be replaced after a certain period of use or frequency, otherwise internal wear will affect extrusion accuracy. Aluminum extrusion molds are integral structures, with the core and extrusion channel set on the surfaces of the upper and lower molds. When the mold is replaced, the entire upper and lower molds must be replaced. For the entire mold, the material consumption is large and the replacement cost is high. To this end, we propose an extrusion mold for multi-rib aluminum profiles. Utility Model Content

[0004] In view of the shortcomings of existing aluminum profile extrusion dies that are large in size and can only be used once, resulting in material waste, the utility model provides an extrusion die for multi-rib aluminum profiles, which has the advantages of convenient disassembly and replacement of the die body in the die base, and at the same time, the material consumption of the die body is greatly reduced compared to a whole-piece die, thereby solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] Design an extrusion die for multi-rib aluminum profiles, including:

[0007] A first die base, wherein a cylindrical cavity is provided at the axis of the first die base, and a first annular groove is provided at an edge of one end of the cylindrical cavity;

[0008] A cylindrical mold body is provided with a second annular groove on the surface of the cylindrical mold body, so that the surface of the cylindrical mold body has a stepped structure, the second annular groove is placed in the cylindrical cavity, the end of the cylindrical mold body is placed in the first annular groove, and the end surfaces of the two are flush; a forming cavity is provided at the axis of the cylindrical mold body, and at least one rib groove extending into the cylindrical mold body is provided on the inner wall of the forming cavity; a welding chamber is provided at the edge of one end of the forming cavity away from the second annular groove, and a positioning groove is provided at the edge of the welding chamber;

[0009] The second die base has an extrusion boss in the middle of one side, a support column in the middle of the extrusion boss, a hollow die body sleeved on the support column, a mounting plate coaxially provided at one end of the hollow die body, and the mounting plate overlaps the side of the extrusion boss;

[0010] Among them, a plurality of diversion ports are provided on the mounting plate at the edge of the hollow mold body, and the diversion ports respectively pass through the second mold base and the extrusion boss; the first mold base and the second mold base are superimposed on each other, and the second mold base and the extrusion boss are placed in the positioning groove and the cylindrical mold body is pressed tightly in the first annular groove, and the hollow mold body is placed in the molding cavity and a flow gap is provided between the two.

[0011] Preferably, a certain gap is provided between the first mold base and the second mold base; a plurality of symmetrically arranged connecting holes are provided at the edges of the first mold base and the second mold base, and the connecting holes are connected by bolts.

[0012] Preferably, at least one positioning opening is provided on one side edge of the first mold base close to the second mold base, and a positioning block corresponding to the positioning opening is provided on one side edge of the second mold base close to the first mold base, and the positioning block is placed in the positioning opening.

[0013] Preferably, the inner wall of the hollow mold body is provided with at least one strip opening parallel to its axis, and the surface of the support column is provided with at least one strip block parallel to its axis, and the strip block is placed in the strip opening.

[0014] Preferably, a third annular groove is formed on one edge of each of the first mold base and the second mold base which are away from each other, and the connecting hole is located in the third annular groove.

[0015] Preferably, a feed inlet is provided in the middle of a side of the second mold base away from the first mold base, and the diversion port is located inside the feed inlet.

[0016] Compared with the prior art, when the present invention is in use, when the mold reaches its life span, the cylindrical mold body and the hollow mold body can be removed from the carrier separately and replaced with a new cylindrical mold body and hollow mold body. Compared with the traditional whole upper mold and lower mold, the cylindrical mold body and the hollow mold body are small in size, so that the materials used for their processing can be greatly reduced, which greatly reduces the materials used to manufacture the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one side of the utility model.

[0018] Figure 2 It is a structural diagram of the other side of the utility model.

[0019] Figure 3 This is a structural diagram of the first mold base of the utility model.

[0020] Figure 4 This is a schematic structural diagram of the second mold base of the present utility model.

[0021] Figure 5 This is a cross-sectional view of the utility model.

[0022] Figure 6It is a schematic diagram of a multi-rib aluminum profile extruded by the utility model.

[0023] In the figure: 1. First die base; 2. Connecting hole; 3. Positioning groove; 4. Positioning opening; 5. Welding chamber; 6. Columnar die body; 7. Second die base; 8. Third annular groove; 9. Strip block; 10. Feed inlet; 11. Diversion port; 12. Forming cavity; 13. Rib groove; 14. First annular groove; 15. Columnar cavity; 16. Positioning block; 17. Mounting plate; 18. Extrusion boss; 19. Hollow die body; 20. Second annular groove; 21. Strip opening; 22. Support column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 5 The utility model provides a technical solution: an extrusion die for multi-rib aluminum profiles, comprising a first die base 1 and a cylindrical die body 6, a cylindrical cavity 15 is provided at the axis of the first die base 1, and a first annular groove 14 is provided at one end edge of the cylindrical cavity 15, such as Figure 3 As shown, the first annular groove 14 and the cylindrical cavity 15 are arranged in steps;

[0026] A second annular groove 20 is provided on the surface of the cylindrical mold body 6, giving the surface of the cylindrical mold body 6 a stepped structure. The second annular groove 20 is placed in the cylindrical cavity 15 with a clearance fit therebetween. The end of the cylindrical mold body 6 is placed in the first annular groove 14 with the end surfaces of the two being flush, that is, the cylindrical mold body 6 can just be completely placed inside the first mold base 1.

[0027] A forming cavity 12 is provided at the axis of the cylindrical mold body 6. The inner wall of the forming cavity 12 is provided with at least one rib groove 13 extending into the cylindrical mold body 6. The rib groove 13 can be regular or irregular. Figure 1 and Figure 3 As shown, a welding chamber 5 is provided at the edge of one end of the molding cavity 12 away from the second annular groove 20, and a positioning groove 3 is provided at the edge of the welding chamber 5;

[0028] It should be noted that the first die base 1 is the carrier of the lower die in the mold, that is, the lower die in the cylindrical mold body 6. The forming cavity 12 inside it is used to cooperate with the mold core to form the aluminum material. At the same time, the rib groove 13 provided can form ribs (such as Figure 6 samples shown).

[0029] The present invention also includes a second die base 7 corresponding to the first die base 1, an extrusion boss 18 is provided in the middle of one side of the second die base 7, a support column 22 is provided in the middle of the extrusion boss 18, a hollow die body 19 is sleeved on the support column 22, and a mounting plate 17 is coaxially provided at one end of the hollow die body 19, and the mounting plate 17 is superimposed on the side of the extrusion boss 18; a plurality of diversion ports 11 are provided on the mounting plate 17 at the edge of the hollow die body 19, and the diversion ports 11 respectively pass through the second die base 7 and the extrusion boss 18; it should be noted that the hollow die body 19 constitutes a die core structure, and the aluminum material enters the diversion port 11 from one end of the second die base 7 under the pressure of the extruder;

[0030] The first die base 1 and the second die base 7 are stacked on each other, and the second die base 7 and the extrusion boss 18 are placed in the positioning groove 3 and press the cylindrical die body 6 into the first annular groove 14. The hollow die body 19 is placed in the molding cavity 12, and a flow gap is provided between the two.

[0031] Specifically, when the present invention is in use, a feed port 10 is provided in the middle of the side of the second die base 7 away from the first die base 1, and a diversion port 11 is located in the feed port 10. The aluminum material first enters the feed port 10 under the push of the extruder, and then gradually flows into each diversion port 11;

[0032] The diversion port 11 is directly opposite to the welding chamber 5, so the aluminum material flowing out of the diversion port 11 flows directly into the welding chamber 5. The main function of the welding chamber 5 here is to collect the metal flowing out of the diversion hole together and re-weld it to form an integral blank with the mold core as the center. As the metal continues to gather, the static pressure continues to increase until it is extruded and formed; therefore, the aluminum material inside the welding chamber 5 passes through the flow gap formed between the hollow mold body 19 and the forming cavity 12 and is extruded and formed. The shapes of the hollow mold body 19 and the forming cavity 12 can be regular or irregular, and their shapes can be determined according to the shape of the extruded profile.

[0033] The first mold base 1 here is the carrier of the lower mold, and the second mold base 7 is the carrier of the upper mold, that is, the cylindrical mold body 6 and the hollow mold body 19. The cylindrical mold body 6 and the hollow mold body 19 are detachable. When they have been used for their lifespan, the cylindrical mold body 6 and the hollow mold body 19 can be removed from the carrier separately and replaced with a new cylindrical mold body 6 and hollow mold body 19. Compared with the traditional whole upper mold and lower mold, the cylindrical mold body 6 and the hollow mold body 19 are small in size, so that the materials used in their processing can be greatly reduced.

[0034] Furthermore, a plurality of symmetrically arranged connecting holes 2 are provided at the edges of the first mold base 1 and the second mold base 7, and the connecting holes 2 are connected by bolts, such as Figure 5As shown, there is a certain gap between the first mold base 1 and the second mold base 7. When the bolts are tightened, the first mold base 1 and the second mold base 7 can be tightened to each other, so that the cylindrical mold body 6 and the mounting plate 17 are in close contact, and the cylindrical mold body 6 will not shake in the first mold base 1.

[0035] Further, such as Figure 1 and Figure 2 As shown, at least one positioning opening 4 is provided on one side edge of the first mold base 1 close to the second mold base 7, and a positioning block 16 corresponding to the positioning opening is provided on one side edge of the second mold base 7 close to the first mold base 1. The positioning block 16 is placed in the positioning opening 4. It should be noted that a movable gap is provided between the positioning block 16 and the bottom of the positioning opening 4. When the first mold base 1 and the second mold base 7 are tightened, the positioning block 16 is allowed to extend and retract in the positioning opening 4.

[0036] Further, such as Figure 4 As shown, the inner wall of the hollow mold body 19 is provided with at least one strip opening 21 parallel to its axis, and the surface of the support column 22 is provided with at least one strip block 9 parallel to its axis. The strip block 9 is placed in the strip opening 21. After the strip block 9 is matched with the strip opening 21, the positions of the mounting plate 17 and the second mold base 7 can be relatively fixed, and the diversion ports 11 can be aligned.

[0037] Based on the above embodiment, further optimization can be performed, where the first mold base 1 and the second mold base 7 are far away from each other and a third annular groove 8 is provided on one end edge, and the connecting hole 2 is located in the third annular groove 8, so that both ends of the bolt can be placed in the third annular groove 8 without being exposed.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion die for multi-rib aluminum profiles, characterized by: include, A first mold base (1), wherein a cylindrical cavity (15) is provided at the axis of the first mold base (1), and a first annular groove (14) is provided at an edge of one end of the cylindrical cavity (15); A cylindrical mold body (6) is provided with a second annular groove (20) on the surface of the cylindrical mold body (6), so that the surface of the cylindrical mold body (6) has a stepped structure, the second annular groove (20) is placed in the cylindrical cavity (15), and the end of the cylindrical mold body (6) is placed in the first annular groove (14) and the end surfaces of the two are flush; a forming cavity (12) is provided at the axis of the cylindrical mold body (6), and at least one rib groove (13) extending toward the inside of the cylindrical mold body (6) is provided on the inner wall of the forming cavity (12); a welding chamber (5) is provided at the edge of one end of the forming cavity (12) away from the second annular groove (20), and a positioning groove (3) is provided at the edge of the welding chamber (5); A second die base (7) is provided with an extrusion boss (18) in the middle of one side thereof, a support column (22) is provided in the middle of the extrusion boss (18), a hollow die body (19) is sleeved on the support column (22), a mounting plate (17) is coaxially provided at one end of the hollow die body (19), and the mounting plate (17) is superimposed on the side of the extrusion boss (18); A plurality of diversion ports (11) are provided on a mounting plate (17) at the edge of the hollow mold body (19), and the diversion ports (11) respectively penetrate the second mold base (7) and the extrusion boss (18); the first mold base (1) and the second mold base (7) are stacked on each other, and the second mold base (7) and the extrusion boss (18) are placed in the positioning groove (3) and the cylindrical mold body (6) is pressed tightly into the first annular groove (14); the hollow mold body (19) is placed in the molding cavity (12) and a flow gap is provided between the two.

2. The extrusion die for multi-rib aluminum profiles according to claim 1, characterized in that: A certain gap is provided between the first die base (1) and the second die base (7); a plurality of symmetrically arranged connection holes (2) are provided at the edges of the first die base (1) and the second die base (7), and the connection holes (2) are connected by bolts.

3. The extrusion die for multi-rib aluminum profiles according to claim 2, characterized in that: At least one positioning opening (4) is provided on one side edge of the first mold base (1) close to the second mold base (7), and a positioning block (16) corresponding to the positioning opening is provided on one side edge of the second mold base (7) close to the first mold base (1), and the positioning block (16) is placed in the positioning opening (4).

4. The extrusion die for multi-rib aluminum profiles according to claim 1, characterized in that: The inner wall of the hollow mold body (19) is provided with at least one strip opening (21) parallel to its axis, and the surface of the support column (22) is provided with at least one strip block (9) parallel to its axis, and the strip block (9) is placed in the strip opening (21).

5. The extrusion die for multi-rib aluminum profile according to claim 2, characterized in that: The first die base (1) and the second die base (7) are separated from each other and both have a third annular groove (8) formed on one end edge. The connecting hole (2) is located in the third annular groove (8).

6. The extrusion die for multi-rib aluminum profiles according to claim 1, characterized in that: A feed inlet (10) is provided in the middle of a side of the second die base (7) away from the first die base (1), and a diversion port (11) is located inside the feed inlet (10).

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