CN111957759B

CN111957759B - Micro-channel hot extrusion die structure and preparation method thereof

Info

Publication number: CN111957759B
Application number: CN202010802748.9A
Authority: CN
Inventors: 戴建新
Original assignee: Changshu Lvyi Electrical Accessories Manufacturing Co ltd
Current assignee: Changshu Lvyi Electrical Accessories Manufacturing Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2022-07-01
Anticipated expiration: 2040-08-11
Also published as: CN111957759A

Abstract

The invention discloses a hot extrusion die structure for a micro channel and a preparation method thereof, and the hot extrusion die structure comprises a base, wherein a female die is welded at the top of the base, a vertical plate is welded at one side of the top of the base, a top plate is welded at the top of one side of the vertical plate, a hydraulic cylinder is welded at the bottom of the top plate, a movable plate is welded on a piston rod of the hydraulic cylinder, one side of the movable plate is connected with the vertical plate in a sliding manner, a support column is welded at the bottom of the movable plate, a male die is welded at the bottom of the support column, and an upper die rack is welded at the middle part of the bottom of the male die; all the procedures of the die are completed by adopting a machining mode, so that the base material corrosion caused by discharge is effectively avoided, and the processing precision and the processing roughness of the die are improved; through the smooth transition arrangement of the upper die rack, the metal flow forming is facilitated, and the product forming is facilitated.

Description

Micro-channel hot extrusion die structure and preparation method thereof

Technical Field

The invention relates to the technical field of hot extrusion dies, in particular to a micro-channel hot extrusion die structure and a preparation method thereof.

Background

The existing extrusion die is a die for extruding and molding metal, and is used for extruding and molding a preheated metal blank into a required product from a die cavity of the die under the external pressure. Therefore, the roughness of the mold can directly affect the flow of the metal flow in the mold forming process, and resistance is formed on the metal flow, which is not beneficial to the product forming and is not beneficial to the service life of the mold. After the upper die of the hard alloy insert is machined in an electric discharge mode, the tooth shape of the upper die is not beneficial to metal flow, so that the resistance is large, and the product is not beneficial to forming.

Disclosure of Invention

The invention aims to provide a micro-channel hot extrusion die structure and a preparation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the micro-channel hot extrusion die structure comprises a base, wherein a female die is welded at the top of the base, a vertical plate is welded at one side of the top of the base, a top plate is welded at the top of one side of the vertical plate, a hydraulic cylinder is welded at the bottom of the top plate, a movable plate is welded on a piston rod of the hydraulic cylinder, one side of the movable plate is in sliding connection with the vertical plate, a support column is welded at the bottom of the movable plate, a male die is welded at the bottom of the support column, an upper die rack is welded in the middle of the bottom of the male die, aluminum oxide coatings are respectively arranged on the outer sides of the male die and the female die, a push plate is fixedly connected to one side of the top of the support column, a support is welded at the top of the base, an air cooler is in threaded connection with one side of the support, an air cooler switch is fixedly connected to the top of one side of the support, and a power output end of the air cooler switch is electrically connected with a power input end of the air cooler, the air inlet intercommunication of air-cooler has the intake pipe, the one end intercommunication that the air-cooler was kept away from to the intake pipe has the gas holder, the top intercommunication of gas holder has the gas-filling pipe, the bottom and the base welding of gas holder, the inside fixedly connected with casing of base, one side intercommunication of casing has the third air duct, the air outlet and the third air duct intercommunication of air-cooler.

As further preferable in the present technical solution: the bottom welding of base has the bottom plate, one side threaded connection of bottom plate has the air pump, the gas outlet intercommunication of air pump has the fourth air duct, the one end and the gas holder intercommunication that the air pump was kept away from to the fourth air duct.

As a further preferred aspect of the present invention: the other side of casing intercommunication has the second air duct, the one end intercommunication that the casing was kept away from to the second air duct has the box, one side intercommunication of box has first air duct, the air intake and the first air duct intercommunication of air pump.

As further preferable in the present technical solution: the improved box structure is characterized in that a through groove is formed in the base, a first rotating shaft penetrates through the through groove, a first bearing is fixedly connected to the outer side wall of the first rotating shaft, and the outer ring of the first bearing is fixedly connected with the box body.

As further preferable in the present technical solution: the bottom of first pivot runs through the first leaf that changes of first bearing and fixedly connected with, first pivot runs through outer wall one side fixedly connected with second bearing that leads to the groove, the outer lane fixedly connected with fixed block of second bearing, the bottom and the base welding of fixed block.

As further preferable in the present technical solution: the welding of the top of first pivot has first conical gear, the outside meshing of first conical gear has second conical gear, one side welding of second conical gear has the second pivot, the lateral wall fixedly connected with third bearing of second pivot, the outer lane fixedly connected with fixed plate of third bearing, the bottom and the base welding of fixed plate, the one end of second pivot runs through third bearing and threaded connection has the second to change the leaf.

The preparation method of the micro-channel hot extrusion die comprises the following steps:

s1, placing a product to be subjected to hot extrusion in a die cavity of the female die, starting a hydraulic cylinder through a switch group, and driving a piston rod of the hydraulic cylinder to move downwards to drive the movable plate to move downwards;

s2, when the male die performs hot extrusion on a product in the female die, the movable plate drives the push plate to press a switch of the air cooler;

s3, starting the air cooler through the air cooler switch, injecting air into the air storage tank through the air adding pipe, extracting the air from the air storage tank through the air inlet pipe by the air cooler, and converting the air into cold air;

s4, cold air enters the shell through the third air duct, and the cold air in the shell can dissipate heat of the female die, so that the product after thermal forming is cooled rapidly.

As further preferable in the present technical solution: because the piston rod of the hydraulic cylinder is fixedly connected with the movable plate, the movable plate can be driven to move downwards when the hydraulic cylinder moves downwards; the movable plate moves downwards, the air cooler can be started in a mode of touching the air cooler switch when the movable plate drives the male die to carry out hot extrusion on products in the female die, and therefore the air cooler can cool the female die.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the arrangement of the female die and the male die, a 'knife edge' is formed after the female die and the male die are matched; all the procedures of the die are completed by adopting a machining mode, so that the base material corrosion caused by discharge is effectively avoided, and the processing precision and the processing roughness of the die are improved; through the smooth transition arrangement of the upper die rack, the metal flow forming is facilitated, and the product forming is further facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the female mold of the present invention;

FIG. 3 is a schematic view of the male mold structure of the present invention;

FIG. 4 is a schematic view of a base structure of the present invention;

fig. 5 is a schematic view of a supporting pillar structure of the present invention.

In the figure: 1. a base; 2. a female die; 3. a vertical plate; 4. a top plate; 5. a hydraulic cylinder; 6. a movable plate; 7. a support pillar; 8. a male die; 9. an upper die rack; 10. an aluminum oxide coating; 11. pushing the plate; 12. a first air duct; 13. an air pump; 14. a box body; 15. a second air duct; 16. a housing; 17. a third air duct; 18. a fourth gas-guide tube; 19. a gas storage tank; 20. an air adding pipe; 21. an air cooler; 22. an air cooler switch; 23. an air inlet pipe; 24. a support; 25. a first rotating blade; 26. a first rotating shaft; 27. a first bearing; 28. a through groove; 29. a fixed block; 30. a second bearing; 31. a first bevel gear; 32. a second bevel gear; 33. a fixing plate; 34. a third bearing; 35. a second rotating shaft; 36. a second rotating blade; 37. a base plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides a technical solution: the micro-channel hot extrusion die structure comprises a base 1, a female die 2 is welded at the top of the base 1, a vertical plate 3 is welded at one side of the top of the base 1, a top plate 4 is welded at the top of one side of the vertical plate 3, a hydraulic cylinder 5 is welded at the bottom of the top plate 4, a movable plate 6 is welded at a piston rod of the hydraulic cylinder 5, one side of the movable plate 6 is in sliding connection with the vertical plate 3, a support column 7 is welded at the bottom of the movable plate 6, a male die 8 is welded at the bottom of the support column 7, an upper die rack 9 is welded at the middle of the bottom of the male die 8, an alumina coating 10 is arranged at the outer sides of the male die 8 and the female die 2, a push plate 11 is fixedly connected at one side of the top of the support column 7, a support 24 is welded at the top of the base 1, an air cooler 21 is in threaded connection with one side of the support 24, an air cooler switch 22 is fixedly connected at the top of one side of the support 24, and a power output end of the air cooler switch 22 is electrically connected with a power input end of the air cooler 21, an air inlet 23 is communicated with an air inlet of the air cooler 21, one end, away from the air cooler 21, of the air inlet 23 is communicated with an air storage tank 19, the top of the air storage tank 19 is communicated with an air adding pipe 20, the bottom of the air storage tank 19 is welded with the base 1, a shell 16 is fixedly connected inside the base 1, one side of the shell 16 is communicated with a third air guide pipe 17, and an air outlet of the air cooler 21 is communicated with the third air guide pipe 17; the main function of the alumina coating 10 is to increase the wear resistance of the die.

In this embodiment, specifically: a bottom plate 37 is welded at the bottom of the base 1, an air pump 13 is connected to one side of the bottom plate 37 in a threaded manner, an air outlet of the air pump 13 is communicated with a fourth air duct 18, and one end, far away from the air pump 13, of the fourth air duct 18 is communicated with an air storage tank 19; the air in the box body 14 enters the air storage tank 19 through the first air duct 12 and the fourth air duct 18 under the action of the air pump 13, so that an air cooling circulation system is formed, and the resource waste is reduced.

In this embodiment, specifically: the other side of the shell 16 is communicated with a second air duct 15, one end, far away from the shell 16, of the second air duct 15 is communicated with a box body 14, one side of the box body 14 is communicated with a first air duct 12, and an air inlet of the air pump 13 is communicated with the first air duct 12; the air pump 13 pumps the heat-dissipated air from the housing 16 through the first air duct 12, the tank 14 and the second air duct 15.

In this embodiment, specifically: a through groove 28 is formed in the base 1, a first rotating shaft 26 penetrates through the through groove 28, a first bearing 27 is fixedly connected to the outer side wall of the first rotating shaft 26, and the outer ring of the first bearing 27 is fixedly connected with the box body 14; the through slot 28 allows the rotation of the first rotating shaft 26 to be unaffected by the chassis 1.

In this embodiment, specifically: the bottom of the first rotating shaft 26 penetrates through the first bearing 27 and is fixedly connected with the first rotating blade 25, the first rotating shaft 26 penetrates through one side of the outer wall of the through groove 28 and is fixedly connected with the second bearing 30, the outer ring of the second bearing 30 is fixedly connected with the fixing block 29, and the bottom of the fixing block 29 is welded with the base 1; the primary function of the first bearing 27 is to support the first rotating shaft 26 without affecting the function of the first rotating shaft 26.

In this embodiment, specifically: a first conical gear 31 is welded at the top of the first rotating shaft 26, a second conical gear 32 is meshed and connected with the outer side of the first conical gear 31, a second rotating shaft 35 is welded at one side of the second conical gear 32, a third bearing 34 is fixedly connected with the outer side wall of the second rotating shaft 35, a fixing plate 33 is fixedly connected with the outer ring of the third bearing 34, the bottom of the fixing plate 33 is welded with the base 1, and one end of the second rotating shaft 35 penetrates through the third bearing 34 and is in threaded connection with a second rotating blade 36; the wind power generated by the rotation of the second rotating blade 36 can remove dust and clean the surface of the base 1.

s1, placing a product to be subjected to hot extrusion in a die cavity of the female die 2, starting the hydraulic cylinder 5 through the switch group, and driving the movable plate 6 to move downwards as the piston rod of the hydraulic cylinder 5 moves downwards;

s2, when the male die 8 carries out hot extrusion on the product in the female die 2, the movable plate 6 drives the push plate 11 to press the air cooler switch 22;

s3, starting the air cooler 21 through the air cooler switch 22, injecting air into the air storage tank 19 through the air adding pipe 20, extracting the air from the air storage tank 19 through the air inlet pipe 23 through the air cooler 21, and converting the air into cold air;

s4, cold air enters the shell 16 through the third air duct 17, and the cold air in the shell 16 can dissipate heat of the female die 2, so that a thermoformed product is rapidly cooled; the shell 16 is positioned right below the female die 2, so that the temperature can be transferred to the female die 2, and the female die 2 is rapidly cooled.

In this embodiment, specifically: because the piston rod of the hydraulic cylinder 5 is fixedly connected with the movable plate 6, the movable plate 6 can be driven to move downwards when the hydraulic cylinder 5 moves downwards; the movable plate 6 moves downwards, the male die 8 can be driven to carry out hot extrusion on a product in the female die 2, and meanwhile, the air cooler 21 can be started in a mode of touching the air cooler switch 22, so that the air cooler 21 can cool the female die 2; the cooled gas can be returned to the gas tank 19 again by the air pump 13, and a cooling cycle of the gas is realized.

The hydraulic cylinder 5 is of the type: MOB40X 200.

The types of the air cooler 21 are: QL-30K.

The type of the air pump 13 is: YX-61D-2.

When the air pump is used, a switch group for controlling the hydraulic cylinder 5 and the air pump 13 to be started or closed is installed on the base 1, and the switch group is connected with an external commercial power and used for supplying power to the hydraulic cylinder 5 and the air pump 13; placing a product to be subjected to hot extrusion in a die cavity of the female die 2, and starting the hydraulic cylinder 5 through a switch group; a piston rod of the hydraulic cylinder 5 moves downwards to drive the movable plate 6 to move downwards; the movable plate 6 drives the supporting column 7 to move downwards, and the supporting column 7 drives the male die 8 to move downwards; when the male die 8 carries out hot extrusion on a product in the female die 2, the movable plate 6 drives the push plate 11 to press the air cooler switch 22; the air cooler switch 22 starts the air cooler 21; injecting gas into the gas storage tank 19 through the gas filling pipe 20, extracting the gas from the gas storage tank 19 through the gas inlet pipe 23 by the air cooler 21, and converting the gas into cold gas; cold air enters the shell 16 through the third air duct 17, and the cold air in the shell 16 can dissipate heat of the female die 2, so that a thermoformed product can be rapidly cooled; the air pump 13 is started through the switch group, and the air pump 13 pumps the radiated air from the shell 16 through the first air duct 12, the box body 14 and the second air duct 15; the air enters the box body 14 through a second air duct 15 under the action of the air pump 13; the gas entering the box body 14 can drive the first rotating blade 25 to rotate; the first rotating blade 25 drives the first rotating shaft 26 to rotate, and the first rotating shaft 26 drives the first bevel gear 31 to rotate; the first bevel gear 31 drives the second bevel gear 32 to rotate; the second bevel gear 32 drives the second rotating shaft 35 to rotate; the second rotating shaft 35 drives the second rotating blade 36 to rotate, and wind power generated by the rotation of the second rotating blade 36 can remove dust and clean the surface of the base 1; the air in the box body 14 enters the air storage tank 19 through the first air duct 12 and the fourth air duct 18 under the action of the air pump 13, so that a cooling circulation system of the air is formed, and the resource waste is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Little passageway hot extrusion die structure, including base (1), its characterized in that: the die is characterized in that a concave die (2) is welded at the top of the base (1), a vertical plate (3) is welded at one side of the top of the base (1), a top plate (4) is welded at the top of one side of the vertical plate (3), a hydraulic cylinder (5) is welded at the bottom of the top plate (4), a movable plate (6) is welded at a piston rod of the hydraulic cylinder (5), one side of the movable plate (6) is in sliding connection with the vertical plate (3), a support column (7) is welded at the bottom of the movable plate (6), a convex die (8) is welded at the bottom of the support column (7), an upper die rack (9) is welded at the middle part of the bottom of the convex die (8), an 'edge' is formed by arranging the concave die (8) and the convex die (2) after the concave die and the convex die are matched, aluminum oxide coatings (10) are arranged at the outer sides of the convex die (8) and the concave die (2), and a push plate (11) is fixedly connected at one side of the top of the support column (7), the air cooler is characterized in that a support (24) is welded at the top of the base (1), an air cooler (21) is in threaded connection with one side of the support (24), an air cooler switch (22) is fixedly connected to the top of one side of the support (24), a power output end of the air cooler switch (22) is electrically connected with a power input end of the air cooler (21), an air inlet of the air cooler (21) is communicated with an air inlet pipe (23), one end, far away from the air cooler (21), of the air inlet pipe (23) is communicated with an air storage tank (19), the top of the air storage tank (19) is communicated with an air adding pipe (20), the bottom of the air storage tank (19) is welded with the base (1), a shell (16) is fixedly connected with the inside of the base (1), a third air guide pipe (17) is communicated with one side of the shell (16), and an air outlet of the air cooler (21) is communicated with the third air guide pipe (17), the bottom of the base (1) is welded with a bottom plate (37), one side of the bottom plate (37) is in threaded connection with an air pump (13), an air outlet of the air pump (13) is communicated with a fourth air duct (18), one end, far away from the air pump (13), of the fourth air duct (18) is communicated with an air storage tank (19), the other side of the shell (16) is communicated with a second air duct (15), one end, far away from the shell (16), of the second air duct (15) is communicated with a box body (14), one side of the box body (14) is communicated with a first air duct (12), an air inlet of the air pump (13) is communicated with the first air duct (12), a through groove (28) is formed in the base (1), a first rotating shaft (26) penetrates through the inside of the through groove (28), a first bearing (27) is fixedly connected to the outer side wall of the first rotating shaft (26), and the outer ring of the first bearing (27) is fixedly connected with the box body (14), the bottom of the first rotating shaft (26) penetrates through a first bearing (27) and a first rotating blade (25) fixedly connected with, the first rotating shaft (26) penetrates through a second bearing (30) fixedly connected with one side of the outer wall of the through groove (28), a fixing block (29) is fixedly connected with the outer ring of the second bearing (30), the bottom of the fixing block (29) is welded with the base (1), a first bevel gear (31) is welded at the top of the first rotating shaft (26), a second bevel gear (32) is meshed and connected with the outer side of the first bevel gear (31), a second rotating shaft (35) is welded at one side of the second bevel gear (32), a third bearing (34) is fixedly connected with the outer side wall of the second rotating shaft (35), a fixing plate (33) is fixedly connected with the outer ring of the third bearing (34), and the bottom of the fixing plate (33) is welded with the base (1), one end of the second rotating shaft (35) penetrates through the third bearing (34) and is in threaded connection with the second rotating blade (36), and smooth transition is used for the upper die rack (9), so that the metal flow forming is facilitated.

2. A method for preparing a micro-channel hot extrusion die structure according to claim 1, comprising the steps of:

s1, placing a product to be subjected to hot extrusion in a die cavity of the female die (2), starting the hydraulic cylinder (5) through the switch group, and driving a piston rod of the hydraulic cylinder (5) to move downwards to drive the movable plate (6) to move downwards;

s2, when the male die (8) carries out hot extrusion on a product in the female die (2), the movable plate (6) drives the push plate (11) to press the air cooler switch (22);

s3, starting the air cooler (21) through the air cooler switch (22), injecting air into the air storage tank (19) through the air adding pipe (20), extracting the air from the air storage tank (19) through the air inlet pipe (23) through the air cooler (21), and converting the air into cold air;

s4, cold air enters the shell (16) through the third air duct (17), and the cold air in the shell (16) can dissipate heat of the female die (2), so that a product after thermal forming is cooled rapidly.

3. The method for preparing a micro-channel hot extrusion die structure according to claim 2, wherein: when pneumatic cylinder (5) move down, drive fly leaf (6) move down, fly leaf (6) move down drives terrace die (8) and carries out the hot extrusion to the product in die (2) simultaneously, starts air-cooler (21) through the mode of touching air-cooler switch (22), makes air-cooler (21) cool off die (2).