CN217595534U - Aluminum profile extrusion die - Google Patents

Abstract

The utility model relates to the field of extrusion dies, and discloses an aluminum profile extrusion die, which comprises an upper die and a lower die, wherein the middle part of the upper die is provided with a first-level feeding sinking bridge, a plurality of feeding holes are symmetrically distributed around the first-level feeding sinking bridge, the middle part of the first-level feeding sinking bridge is provided with a second-level feeding sinking bridge, the bottom of the second-level feeding sinking bridge is connected with a die core, and a diversion trench is arranged between two adjacent diversion columns; the lower die comprises a boss and a discharge port, the discharge port is located in the middle of the lower die, and the boss is arranged around the discharge port. Through setting up one-level pan feeding and sinking the bridge and the bridge is sunk to the second grade pan feeding, step-by-step slows down the pressure when aluminium post extrusion gets into last mould, ensures that the below die head can not take place the type easily and become, through set up the guide post at the die head top, further consolidates the anti type variable ability of die head, through set up the guiding gutter between two adjacent guide posts, can accelerate the speed that aluminium liquid flows into die head and mold core, ensures to go up in the mould aluminium liquid can flow into the lower mould with the same speed.

Description

Aluminum profile extrusion die

[ technical field ] A method for producing a semiconductor device

The utility model relates to an extrusion die field, in particular to aluminium alloy extrusion die.

[ background of the invention ]

The aluminium post can become soft through the material behind the high temperature heating, can obtain the aluminium alloy of required shape after extrusion die's extrusion, current aluminium alloy extrusion die is at the in-process of extrusion aluminium post, because certain extrusion force has between aluminium post and mould, and aluminium liquid has certain frictional force, can divide into two strands of aluminium liquid when making aluminium liquid flow through last mould, the one is from pan feeding hole inflow lower mould, the one is from gap inflow lower mould between die head and the die core, two strands of aluminium liquid velocity of flow inhomogeneous can lead to the aluminium alloy that the below discharge gate came out to have the problem of welding seam, furthermore, the aluminium post is at the in-process that the mould extrusion got into from last, huge extrusion pressure makes the mould very easily to take place the type change, lead to the mould to scrap, can not use, need to change, and the production cost is increased.

[ summary of the invention ]

The utility model discloses an aim at solving above-mentioned problem and provide an aluminium alloy extrusion die, solve current extrusion die fragile type and become, the molten aluminum velocity of flow is inhomogeneous in the mould, leads to extrusion's aluminium alloy to appear the welding seam easily, the inhomogeneous problem of texture.

To achieve the purpose, the utility model adopts the following technical proposal:

an aluminum profile extrusion die comprises an upper die and a lower die, wherein the upper die is positioned above the lower die, a first-stage feeding sinking bridge is arranged in the middle of the upper die, a plurality of feeding holes are symmetrically distributed in the periphery of the first-stage feeding sinking bridge, a second-stage feeding sinking bridge is arranged in the middle of the first-stage feeding sinking bridge, a die core is connected to the bottom of the second-stage feeding sinking bridge, a plurality of die heads are arranged on the periphery of the die core and connected with the feeding holes through guide columns, and a guide groove is formed between every two adjacent guide columns;

the lower die comprises a boss and a discharge port, the discharge port is located in the middle of the lower die, and the boss is arranged around the discharge port and used for slowing down the flow velocity of molten aluminum, so that the discharge velocity of the molten aluminum in the lower die is balanced.

Preferably, the first-stage feeding sinking bridge is of a square structure, and two feeding holes are formed in each side edge of the first-stage feeding sinking bridge.

Preferably, the secondary feeding sinking bridge is of a cross structure.

Preferably, the thickness of the flow guide column is not less than 4cm.

Preferably, the diversion trench is obliquely arranged, and the inclination angle of the diversion trench is 45 °.

Preferably, the lower die further comprises a first-stage welding chamber, and the first-stage welding chamber is arranged on the periphery of the boss.

Preferably, the height of the boss in the vertical direction is 1.5cm.

Preferably, the die head is made of stainless steel.

The utility model discloses a contribution lies in: the utility model discloses a set up one-level pan feeding and sink bridge and second grade pan feeding and sink bridge, step-by-step slow down the pressure when aluminium post extrusion gets into last mould, ensure that the below die head can not take place the type easily and become, through set up the water conservancy diversion post at the die head top, further reinforced the anti type of die head and become the ability, ensure that it can not flow in the in-process type at aluminium liquid extrusion and become, through set up the guiding gutter between two adjacent water conservancy diversion posts, can accelerate the speed that aluminium liquid flows in die head and mold core, guarantee in the last mould aluminium liquid can flow in the lower mould with the same speed, guarantee that final product texture is even, reduce the possibility that the welding seam appears.

[ description of the drawings ]

FIG. 1 is a schematic structural view of an upper mold of the present invention at one angle;

fig. 2 is a sectional view of the extrusion die of the present invention;

fig. 3 is a bottom view of the upper die of the present invention;

FIG. 4 is a schematic structural view of one of the angles of the lower mold of the present invention;

fig. 5 is a top view of the extrusion die of the present invention;

fig. 6 is a bottom view of the extrusion die of the present invention;

wherein: the device comprises an upper die 10, a primary feeding sinking bridge 11, a feeding hole 12, a secondary feeding sinking bridge 13, a die core 14, a die head 15, a guide post 16, a guide groove 17, a lower die 20, a boss 21, a discharge hole 22 and a primary welding chamber 23.

[ detailed description ] A

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

As shown in fig. 1-6, an aluminum profile extrusion die comprises an upper die 10 and a lower die 20, wherein the upper die 10 is located above the lower die 20, a primary feeding sinking bridge 11 is arranged in the middle of the upper die 10, a plurality of feeding holes 12 are symmetrically distributed around the primary feeding sinking bridge 11, a secondary feeding sinking bridge 13 is arranged in the middle of the primary feeding sinking bridge 11, a die core 14 is connected to the bottom of the secondary feeding sinking bridge 13, a plurality of die heads 15 are arranged around the die core 14, the die heads 15 are connected with the feeding holes 12 through guide columns 16, and a guide groove 17 is arranged between two adjacent guide columns 16;

the lower die 20 comprises a boss 21 and a discharge port 22, the discharge port 22 is located in the middle of the lower die 20, and the bosses 21 are arranged around the discharge port 22 and used for slowing down the flow velocity of the aluminum liquid so that the discharge velocity of the aluminum liquid in the lower die 20 is balanced.

The aluminum profile extrusion grinding tool mainly comprises an upper die 10 and a lower die 20, wherein a first-stage feeding sinking bridge 11 and a second-stage feeding sinking bridge 13 are arranged in the middle of the upper die 10 (the pressure when an aluminum column is extruded to enter the upper die 10 is reduced in a stepping mode, the extrusion pressure of the aluminum column is greatly reduced after the aluminum column is subjected to twice bridge sinking, and a lower die head 15 cannot be easily extruded and deformed), wherein the first-stage feeding sinking bridge 11 is arranged at the top of the upper die 10, a plurality of feeding holes 12 are formed in the periphery of the first-stage feeding sinking bridge 11, the aluminum column is extruded downwards from the top of the upper die 10 through an extruder after being subjected to high-temperature treatment, the aluminum column is firstly contacted with the first-stage feeding sinking bridge 11 and flows towards the periphery and the lower side under the mutual extrusion of the first-stage feeding sinking bridge 11, the aluminum liquid flowing into the feeding holes 12 in the periphery and the second-stage feeding sinking bridge 13 respectively flows into the second-stage feeding sinking bridge 13, and the amount of the aluminum liquid flowing into gaps of the second-stage feeding sinking bridge 13 from the four sides to the lower die head 15 is kept constant.

Specifically, the die heads 15 are symmetrically distributed around the die core 14, so that the aluminum liquid flowing into the die core 14 and the die head 15 is consistent, the top of the die head 15 is connected with the flow guide columns 16, the top of the flow guide columns 16 is connected with the feeding hole 12, and the flow guide columns 16 play a role in supporting the die head 15, because the aluminum liquid flows into and flows out from the gap between the die head 15 and the die core 14, the die head 15 can bear great pressure and is easy to deform, so that the opening is enlarged, and the flow of the aluminum liquid between the die head 15 and the die head is changed.

The flow guide grooves 17 are arranged between two adjacent flow guide columns 16, the flow guide grooves 17 are obliquely arranged, and the flow guide grooves 17 can accelerate the flowing speed of the aluminum liquid, so that the aluminum liquid can flow to the gap between the die head 15 and the die core 14 more quickly, the situation that the aluminum liquid entering the upper die 10 from the feeding hole 12 flows to the lower die 20 and the aluminum liquid at the die core 14 does not reach the lower die 20 is avoided, and the aluminum liquid in the upper die 10 can reach the lower die 20 at the same time is ensured.

The middle part of the lower die 20 is provided with a discharge port 22, the periphery of the discharge port 22 is provided with a boss 21, the boss 21 has the function of slowing down the speed of the aluminum liquid flowing into the feeding hole 12 in the primary welding chamber 23, and further ensuring that the aluminum liquid left from the die head 15 and the aluminum liquid flowing into the feeding hole 12 can be extruded out from the discharge port 22 at the same time.

The utility model discloses a set up one-level pan feeding and sink bridge 11 and second grade pan feeding and sink bridge 13, step by step's the pressure when aluminium post extrusion that slows down gets into last mould 10, ensure that below die head 15 can not take place the type easily and become, through set up guide post 16 at die head 15 top, further reinforced die head 15's anti type variable ability, ensure that it can not flow in the in-process type at aluminium liquid extrusion and become, through set up guiding gutter 17 between two adjacent guide post 16, can accelerate the speed that aluminium liquid flows in die head 15 and mold core 14, guarantee that aluminium liquid can flow in lower mould 20 with the same speed in the last mould 10, guarantee that the final products texture is even, reduce the possibility that the welding seam appears.

Further, the first-stage feeding sinking bridge 11 is a square structure, and two feeding holes 12 are formed in each side edge of the first-stage feeding sinking bridge 11.

One-level pan feeding bridge 11 is square structure, pan feeding hole 12 evenly distributed is by the four sides of square structure, the aluminium post is at first through with the contact of one-level pan feeding bridge 11, and extrude section bar aluminium liquid, the aluminium liquid that forms can flow in from pan feeding hole 12 all around, also can ensure simultaneously that partly aluminium post directly comes to second grade pan feeding bridge 13 from the middle part, the pressure that second grade pan feeding bridge 13 bore reduces, share the extrusion pressure of part aluminium post through one-level pan feeding bridge 11, the required extruded aluminium post volume of second grade pan feeding bridge 13 reduces greatly, through the extrusion of sectional type, ensure that the spare part in the mould 10 can not take place the type easily and become, increase the life of mould 10.

In a further description, the secondary feeding sinking bridge 13 is in a cross structure.

The secondary feeding sinking bridge 13 is of a cross structure, the secondary feeding sinking bridge 13 can divide the rest aluminum columns into four blocks to enter gaps between a die head 15 and a die core 14 below the secondary feeding sinking bridge 13, and the extrusion pressure of the aluminum columns is further reduced through the force unloading of the secondary feeding sinking bridge 13, the pressure of aluminum liquid flowing to the die head 15 and the die core 14 is greatly reduced relative to the pressure of aluminum liquid flowing to the primary feeding sinking bridge 11 and the secondary feeding sinking bridge 13, the safety of the die head 15 and the die core 14 is ensured, and the shape change cannot easily occur.

Stated further, the thickness of the flow guiding column 16 is not less than 4cm.

The thickness of the flow guide column 16 cannot be too small, the flow guide column cannot well protect the die head 15, deformation is easy to occur, the thickness cannot be too large, the amount of aluminum liquid flowing into the feeding hole 12 can be influenced by too large thickness, and meanwhile, the production cost can be increased.

Further, the diversion trench 17 is disposed obliquely, and the inclination angle of the diversion trench 17 is 45 °.

The inclination angle of guiding gutter 17 is 45, can guarantee that aluminium liquid can flow into the gap department of die head 15 and mold core 14 with the velocity of flow faster for the velocity of flow of aluminium liquid is balanced here and the velocity of flow of aluminium liquid in the pan feeding hole 12, and both velocities of flow can not appear and differ the too big condition, make the extrusion aluminium liquid in last mould 10 can flow into in lower mould 20 with the speed that is more or less the same.

To be further described, the lower mold 20 further includes a primary welding chamber 23, and the primary welding chamber 23 is disposed at the periphery of the boss 21.

The primary welding chamber 23 has the function that the aluminum liquid flowing from the upper die 10 can be uniformly mixed and welded in the primary welding chamber 23, the generation of welding seams in subsequent extrusion forming products is avoided, and the bosses 21 are arranged around the feeding hole 12, so that the flow speed of the aluminum liquid in the primary welding chamber 23 is reduced, and the aluminum liquid can flow out of the discharging hole 22 at a speed which is almost equal to that of the aluminum liquid from the upper die core 14 and the die head 15 for forming.

To explain further, the height of the boss 21 in the vertical direction is 1.5cm.

In further detail, the die 15 is made of stainless steel.

The die head 15 is made of stainless steel, so that the hardness of the die head 15 can be better increased, and the die head 15 is prevented from being deformed in a short time.

Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.

Claims (8)

1. The utility model provides an aluminium alloy extrusion die, includes mould and lower mould, it is located to go up the mould lower mould top, its characterized in that: the middle part of the upper die is provided with a primary feeding sinking bridge, a plurality of feeding holes are symmetrically distributed around the primary feeding sinking bridge, a secondary feeding sinking bridge is arranged in the middle part of the primary feeding sinking bridge, the bottom of the secondary feeding sinking bridge is connected with a die core, a plurality of die heads are arranged around the die core, the die heads are connected with the feeding holes through flow guide columns, and a flow guide groove is arranged between every two adjacent flow guide columns;

the lower die comprises a boss and a discharge port, the discharge port is located in the middle of the lower die, and the boss is arranged around the discharge port and used for slowing down the flow velocity of the aluminum liquid so that the discharge velocity of the aluminum liquid in the lower die is balanced.

2. The aluminum profile extrusion die as set forth in claim 1, wherein: the one-level pan feeding sinking bridge is square structure, all be equipped with two on every side of one-level pan feeding sinking bridge the pan feeding hole.

3. The aluminum profile extrusion die of claim 1, characterized in that: the second-stage feeding sinking bridge is of a cross structure.

4. The aluminum profile extrusion die as set forth in claim 1, wherein: the thickness of the flow guide column is not less than 4cm.

5. The aluminum profile extrusion die of claim 1, characterized in that: the guiding gutter slope sets up, the inclination of guiding gutter is 45.

6. The aluminum profile extrusion die of claim 1, characterized in that: the lower die further comprises a first-stage welding chamber, and the first-stage welding chamber is arranged on the periphery of the boss.

7. The aluminum profile extrusion die of claim 1, characterized in that: the height of the boss in the vertical direction is 1.5cm.

8. The aluminum profile extrusion die of claim 1, characterized in that: the die head is made of stainless steel.

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