Extrusion die for aluminum alloy production

Abstract

The utility model discloses an extrusion die for aluminum alloy production, which belongs to the technical field of aluminum alloy production and is characterized in that the extrusion die comprises a workbench, a bottom die is bolted to the top of the workbench, a circular groove is formed in the front side of the bottom die, and a cooling fan is arranged in an inner cavity of the circular groove; the two sides of the rear side of the inner wall of the circular groove are each provided with a flow guide air groove, an inner cavity of the bottom die is provided with a heat dissipation air groove, the heat dissipation air grooves communicate with the flow guide air grooves, the rear side of the bottom die is provided with air outlet holes, the air outlet holes communicate with the heat dissipation air grooves, the top of the bottom die is provided with an extrusion die, and the bottom of the extrusion die is provided with a limiting cylinder. The problems that an existing extrusion die usually lacks an auxiliary heat dissipation structure and is poor in heat dissipation performance, a structure for limiting the blank ingot is lacked in the blank ingot extrusion process, the blank ingot is extruded towards the periphery between the extrusion die and a bottom die in the blank ingot downward pressing process of the extrusion die, and therefore the forming effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy production, in particular to an extrusion die for aluminum alloy production. Background Art

[0002] Aluminum alloys are divided into deformed aluminum alloys and cast aluminum alloys according to their composition and processing methods. Deformed aluminum alloys are made by first melting the alloy ingredients into ingots, then undergoing plastic deformation processing, and then making various plastic processed products through rolling, extrusion, stretching, forging and other methods. Cast aluminum alloys are made by melting the ingredients and then directly casting them into blanks for various parts using sand molds, iron molds, investment molds and die casting.

[0003] At present, there is a Chinese patent with announcement number CN215696907U. This utility model is applicable to the technical field of aluminum alloy production and processing, and provides an extrusion die for aluminum alloy production, including a base, an extrusion head installed on the top, and a cutting blade for cutting off excess metal raw material after extrusion. The base includes: a supporting foot installed at the bottom; a bottom die installed on the inside; a fastening bolt for fixed connection; a support rod connected and installed on the top, and a top plate installed on the top of the support rod. Compared with the prior art, the beneficial effects of this utility model are: a threaded hole is opened on the bottom die, which is connected and fixed to the base by fastening bolts to ensure the stability of the bottom die during extrusion and prevent deviation, and a heat dissipation hole is opened on the bottom die to increase the contact area with the air. After multiple extrusion processes, the temperature of the bottom die rises, which accelerates heat dissipation and ensures the service life of the bottom die.

[0004] When processing aluminum alloy products, the billet formed by melting and casting the alloy ingredients needs to be formed into an extrusion die. The existing extrusion die usually lacks an auxiliary heat dissipation structure, has poor heat dissipation performance, and lacks a structure to limit the billet during extrusion. When the extrusion die presses the billet downward, the billet will be squeezed out to the surroundings between the extrusion die and the bottom die, thereby affecting the forming effect. Utility Model Content

[0005] The utility model provides an extrusion die for aluminum alloy production, aiming to solve the problem that the existing extrusion die usually lacks an auxiliary heat dissipation structure, has poor heat dissipation performance, lacks a limiting structure during the billet extrusion process, and when the extrusion die presses the billet downward, the billet will be squeezed out to the surroundings between the extrusion die and the bottom die, thereby affecting the forming effect.

[0006] The utility model is implemented as follows: an extrusion die for aluminum alloy production comprises a workbench, a bottom die is bolted to the top of the workbench, a circular groove is provided on the front side of the bottom die, a cooling fan is provided in the inner cavity of the circular groove, guide air grooves are provided on both sides of the rear side of the inner wall of the circular groove, a cooling air groove is provided in the inner cavity of the bottom die, the cooling air groove is communicated with the guide air groove, an air outlet is provided on the rear side of the bottom die, the air outlet is communicated with the cooling air groove, an extrusion die is provided on the top of the bottom die, a limiting cylinder is provided at the bottom of the extrusion die, the top of the limiting cylinder passes through the extrusion die and is fixedly connected with a reset component;

[0007] The reset assembly includes a fixing ring, an L-shaped bracket, a positioning ring, a spring, a limiting rod and a limiting plate. The side of the L-shaped bracket close to the fixing ring is fixedly connected to the fixing ring, the side of the L-shaped bracket close to the extrusion die is fixedly connected to the extrusion die, the inner wall of the positioning ring is fixedly connected to the top of the surface of the limiting cylinder, the top and bottom of the spring are fixedly connected to the bottom of the fixing ring and the top of the positioning ring respectively, the limiting rod is located in the inner cavity of the spring, the bottom of the limiting rod is fixedly connected to the top of the positioning ring, the top of the limiting rod passes through the fixing ring, and the bottom of the limiting plate is fixedly connected to the top of the limiting rod.

[0008] In order to achieve the effect of diverting the wind output by the cooling fan and making the wind enter the cooling air groove from the two guide air grooves at the same time, as a preferred extrusion die for aluminum alloy production of the utility model, a diverter block is provided on the rear side of the circular groove cavity, and the side of the diverter block close to the inner wall of the circular groove is fixedly connected to the inner wall of the circular groove.

[0009] In order to achieve the effect of supporting and fixing the cooling fan, as a preferred extrusion die for aluminum alloy production of the utility model, both sides of the cooling fan are fixedly connected with support bars, and the side of the support bar close to the inner wall of the circular groove is fixedly connected to the inner wall of the circular groove.

[0010] In order to protect the cooling fan and prevent foreign matter from entering the circular groove, as a preferred extrusion die for aluminum alloy production of the utility model, a protective net used in conjunction with the cooling fan is provided on the front side of the inner cavity of the circular groove, and the surface of the protective net is fixedly connected to the inner wall of the circular groove.

[0011] In order to achieve the effect that the limiting cylinder can pass through the extrusion die and does not hinder the extrusion die from extruding the billet, as a preferred extrusion die for aluminum alloy production of the utility model, an annular through groove used in conjunction with the limiting cylinder is opened at the bottom of the extrusion die, and the limiting cylinder is slidably connected to the inner wall of the annular through groove on one side close to the inner wall of the annular through groove.

[0012] In order to achieve the effect of increasing the support stability of the fixing ring, as a preferred extrusion die for aluminum alloy production of the utility model, the number of the L-shaped brackets is four and they are evenly distributed around the surface of the fixing ring.

[0013] In order to increase the effect of resetting the limit cylinder, as a preferred embodiment of the utility model for an extrusion die for aluminum alloy production, the number of the springs is several and they are evenly distributed around the top of the positioning ring.

[0014] In order to achieve the effect of allowing the limiting rod to move upward when the limiting cylinder extrude the positioning ring, as a preferred extrusion die for aluminum alloy production of the utility model, limiting holes cooperating with the limiting rod are opened around the bottom of the fixing ring, and the surface of the limiting rod is slidably connected to the inner wall of the limiting hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The extrusion die for aluminum alloy production is provided with a workbench, a bottom die, a circular groove, a cooling fan, a guide air groove, a cooling air groove, an air outlet, an extrusion die, a limiting cylinder and a reset component. When in use, a billet formed by melting and casting the alloy ingredients is placed in the bottom die, and then the extrusion die is moved downward to extrude the billet in the bottom die. When the extrusion die is pressed downward, the bottom of the limiting cylinder first contacts the bottom die, and then the extrusion die continues to be pressed downward, at which time the limiting cylinder does not move any more, and the limiting cylinder passes through the extrusion die to extrude the reset component. When the extrusion die contacts and extrude the billet, the billet can be limited by the limiting cylinder, so that the billet will not be extruded around between the extrusion die and the bottom die. After the extrusion molding is completed, the position of the limiting cylinder can be reset by the reset component, which is convenient for next use, and wind force can be output by the cooling fan, so that the wind force enters the cooling air groove through the guide air groove, flows in the cooling air groove and is discharged through the air outlet, so as to achieve the effect of auxiliary heat dissipation of the bottom die. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the extrusion die for aluminum alloy production of the utility model;

[0018] Figure 2 For the utility model Figure 1 Another structural diagram from another perspective;

[0019] Figure 3 This is a cross-sectional structural diagram of the bottom mold of the utility model;

[0020] Figure 4 It is a structural diagram of the limit cylinder and the reset assembly in the utility model;

[0021] Figure 5It is a structural diagram of the extrusion die, the fixing ring and the L-shaped bracket in the utility model.

[0022] In the figure, 1. workbench; 2. bottom mold; 3. circular groove; 4. cooling fan; 5. guide air groove; 6. cooling air groove; 7. air outlet; 8. extrusion mold; 9. limit cylinder; 10. reset assembly; 1001. fixing ring; 1002. L-shaped bracket; 1003. positioning ring; 1004. spring; 1005. limit rod; 1006. limit plate; 11. diverter block; 12. support bar; 13. protective net; 14. annular groove; 15. limit hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: an extrusion die for aluminum alloy production, comprising a workbench 1, a bottom die 2 is bolted to the top of the workbench 1, a circular groove 3 is provided on the front side of the bottom die 2, a cooling fan 4 is provided in the inner cavity of the circular groove 3, guide air grooves 5 are provided on both sides of the rear side of the inner wall of the circular groove 3, a cooling air groove 6 is provided in the inner cavity of the bottom die 2, the cooling air groove 6 is connected with the guide air groove 5, an air outlet 7 is provided on the rear side of the bottom die 2, the air outlet 7 is connected with the cooling air groove 6, an extrusion die 8 is provided on the top of the bottom die 2, a limiting cylinder 9 is provided at the bottom of the extrusion die 8, the top of the limiting cylinder 9 passes through the extrusion die 8 and is fixedly connected with a reset component 10;

[0026] The reset assembly 10 includes a fixing ring 1001, an L-shaped bracket 1002, a positioning ring 1003, a spring 1004, a limiting rod 1005 and a limiting plate 1006. The side of the L-shaped bracket 1002 close to the fixing ring 1001 is fixedly connected to the fixing ring 1001, the side of the L-shaped bracket 1002 close to the extrusion die 8 is fixedly connected to the extrusion die 8, the inner wall of the positioning ring 1003 is fixedly connected to the top of the surface of the limiting cylinder 9, the top and bottom of the spring 1004 are fixedly connected to the bottom of the fixing ring 1001 and the top of the positioning ring 1003 respectively, the limiting rod 1005 is located in the inner cavity of the spring 1004, the bottom of the limiting rod 1005 is fixedly connected to the top of the positioning ring 1003, the top of the limiting rod 1005 passes through the fixing ring 1001, and the bottom of the limiting plate 1006 is fixedly connected to the top of the limiting rod 1005.

[0027] In this embodiment, a workbench 1, a bottom die 2, a circular groove 3, a cooling fan 4, a guide air groove 5, a cooling air groove 6, an air outlet 7, an extrusion die 8, a limiting cylinder 9 and a reset assembly 10 are arranged. When in use, the billet formed by melting and casting the alloy ingredients is placed in the bottom die 2, and then the extrusion die 8 is moved downward to extrude the billet in the bottom die 2. When the extrusion die 8 is pressed downward, the bottom of the limiting cylinder 9 first contacts the bottom die 2, and then the extrusion die 8 continues to be pressed downward. At this time, the limiting cylinder 9 no longer moves, and the limiting cylinder 9 passes through the extrusion die 8 to reset the assembly 1. 0 is extruded, and when the extrusion die 8 contacts and extrude the billet, the billet can be limited by the limiting cylinder 9, so as to achieve the effect of preventing the billet from being extruded around between the extrusion die 8 and the bottom die 2. After the extrusion molding is completed, the position of the limiting cylinder 9 can be reset by the resetting component 10, which is convenient for the next use, and the wind can be output by the cooling fan 4, so that the wind enters the cooling wind groove 6 through the guide wind groove 5, flows in the cooling wind groove 6 and is discharged through the air outlet 7, thereby achieving the effect of auxiliary heat dissipation of the bottom die 2.

[0028] As a technical optimization solution of the utility model, a diverter block 11 is provided at the rear side of the inner cavity of the circular groove 3 , and one side of the diverter block 11 close to the inner wall of the circular groove 3 is fixedly connected to the inner wall of the circular groove 3 .

[0029] In this embodiment, by providing the diverter block 11 , the wind force output by the cooling fan 4 can be diverted so that the wind force enters the cooling air slot 6 from the two guide air slots 5 at the same time.

[0030] As a technical optimization solution of the utility model, support bars 12 are fixedly connected to both sides of the cooling fan 4 , and the side of the support bar 12 close to the inner wall of the circular groove 3 is fixedly connected to the inner wall of the circular groove 3 .

[0031] In this embodiment, the heat dissipation fan 4 can be supported and fixed by providing the support bar 12 .

[0032] As a technical optimization solution of the utility model, a protective net 13 used in conjunction with the cooling fan 4 is provided on the front side of the inner cavity of the circular groove 3 , and the surface of the protective net 13 is fixedly connected to the inner wall of the circular groove 3 .

[0033] In this embodiment, the protection net 13 is provided to protect the heat dissipation fan 4 and prevent foreign matter from entering the circular groove 3 .

[0034] As a technical optimization solution of the utility model, an annular groove 14 is provided at the bottom of the extrusion die 8 for use with the limiting cylinder 9 , and the limiting cylinder 9 is slidably connected to the inner wall of the annular groove 14 on one side close to the inner wall of the annular groove 14 .

[0035] In this embodiment, the annular through groove 14 is provided so that the limiting cylinder 9 can pass through the extrusion die 8 and the limiting cylinder 9 will not hinder the extrusion die 8 from extruding the billet.

[0036] As a technical optimization solution of the present invention, the number of L-shaped brackets 1002 is four and they are evenly distributed around the surface of the fixing ring 1001 .

[0037] In this embodiment, by providing a plurality of L-shaped brackets 1002 , the support stability of the fixing ring 1001 can be increased.

[0038] As a technical optimization solution of the present invention, there are several springs 1004 , which are evenly distributed around the top of the positioning ring 1003 .

[0039] In this embodiment, by providing a plurality of springs 1004 , the resetting effect of the limiting cylinder 9 can be increased.

[0040] As a technical optimization solution of the utility model, limiting holes 15 cooperating with the limiting rod 1005 are opened around the bottom of the fixing ring 1001, and the surface of the limiting rod 1005 is slidably connected to the inner wall of the limiting hole 15.

[0041] In this embodiment, the limiting hole 15 is provided so that the limiting rod 1005 can move upward when the limiting cylinder 9 squeezes the positioning ring 1003 .

[0042] Working principle: First, the billet formed by melting the alloy ingredients is placed in the bottom die 2, and then the extrusion die 8 is moved downward to extrude the billet in the bottom die 2. When the extrusion die 8 is pressed down, the bottom of the limiting cylinder 9 first contacts the bottom die 2, and then the extrusion die 8 continues to be pressed down. At this time, the limiting cylinder 9 no longer moves, and the limiting cylinder 9 passes through the extrusion die 8 through the annular groove 14 to extrude the positioning ring 1003. The positioning ring 1003 moves upward and extrude the spring 1004. When the extrusion die 8 contacts and extrude the billet, the billet can be limited by the limiting cylinder 9, so as to prevent the billet from being moved. It will have the effect of extruding to the surroundings between the extrusion die 8 and the bottom die 2. After the extrusion molding is completed, the force released after the compression of the spring 1004 can drive the positioning ring 1003 to move downward, and the positioning ring 1003 drives the limiting cylinder 9 to move downward in the annular groove 14, so that the position of the limiting cylinder 9 is reset, which is convenient for next use, and the wind force can be output through the cooling fan 4, so that the wind force is diverted to the two guide wind grooves 5 through the diversion block 11, and then enters the heat dissipation wind groove 6 through the guide wind groove 5, circulates in the heat dissipation wind groove 6 and is discharged through the air outlet 7, thereby achieving the effect of auxiliary heat dissipation of the bottom die 2.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion die for aluminum alloy production, comprising a workbench (1), characterized in that: A bottom mold (2) is bolted to the top of the workbench (1); a circular groove (3) is provided on the front side of the bottom mold (2); a cooling fan (4) is arranged in the inner cavity of the circular groove (3); guide air grooves (5) are provided on both sides of the rear side of the inner wall of the circular groove (3); a cooling air groove (6) is provided in the inner cavity of the bottom mold (2); the cooling air groove (6) is communicated with the guide air groove (5); an air outlet (7) is provided on the rear side of the bottom mold (2); the air outlet (7) is communicated with the cooling air groove (6); an extrusion mold (8) is arranged on the top of the bottom mold (2); a limiting cylinder (9) is arranged at the bottom of the extrusion mold (8); the top of the limiting cylinder (9) passes through the extrusion mold (8) and is fixedly connected with a reset component (10); The reset assembly (10) comprises a fixing ring (1001), an L-shaped bracket (1002), a positioning ring (1003), a spring (1004), a limiting rod (1005) and a limiting plate (1006); the side of the L-shaped bracket (1002) close to the fixing ring (1001) is fixedly connected to the fixing ring (1001); the side of the L-shaped bracket (1002) close to the extrusion die (8) is fixedly connected to the extrusion die (8); the inner wall of the positioning ring (1003) is fixedly connected to the surface of the limiting cylinder (9); The top of the spring (1004) is fixedly connected to the bottom of the fixing ring (1001) and the top of the positioning ring (1003), respectively; the limiting rod (1005) is located in the inner cavity of the spring (1004); the bottom of the limiting rod (1005) is fixedly connected to the top of the positioning ring (1003); the top of the limiting rod (1005) passes through the fixing ring (1001); and the bottom of the limiting plate (1006) is fixedly connected to the top of the limiting rod (1005).

2. The extrusion die for aluminum alloy production according to claim 1, characterized in that: A diverter block (11) is provided at the rear side of the inner cavity of the circular groove (3), and a side of the diverter block (11) close to the inner wall of the circular groove (3) is fixedly connected to the inner wall of the circular groove (3).

3. The extrusion die for aluminum alloy production according to claim 1, characterized in that: Support bars (12) are fixedly connected to both sides of the heat dissipation fan (4), and the side of the support bar (12) close to the inner wall of the circular groove (3) is fixedly connected to the inner wall of the circular groove (3).

4. The extrusion die for aluminum alloy production according to claim 1, characterized in that: A protective net (13) used in conjunction with the cooling fan (4) is arranged on the front side of the inner cavity of the circular groove (3); the surface of the protective net (13) is fixedly connected to the inner wall of the circular groove (3).

5. The extrusion die for aluminum alloy production according to claim 1, characterized in that: An annular through groove (14) for use with the limiting cylinder (9) is provided at the bottom of the extrusion die (8); a side of the limiting cylinder (9) close to the inner wall of the annular through groove (14) is slidably connected to the inner wall of the annular through groove (14).

6. The extrusion die for aluminum alloy production according to claim 1, characterized in that: The number of the L-shaped brackets (1002) is four, and they are evenly distributed around the surface of the fixing ring (1001).

7. The extrusion die for aluminum alloy production according to claim 1, characterized in that: The number of the springs (1004) is several and they are evenly distributed around the top of the positioning ring (1003).

8. The extrusion die for aluminum alloy production according to claim 1, characterized in that: The bottom of the fixing ring (1001) is provided with limiting holes (15) around its periphery for cooperation with the limiting rod (1005), and the surface of the limiting rod (1005) is slidably connected to the inner wall of the limiting hole (15).

Images