CN115041660A

CN115041660A - Compression casting device of shrinkage porosity is prevented to radiating fin

Info

Publication number: CN115041660A
Application number: CN202210747780.0A
Authority: CN
Inventors: 吕小龙
Original assignee: Wuxi Longran Technology Co ltd
Current assignee: Wuxi Longran Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-09-13

Abstract

The invention discloses a compression casting device for preventing shrinkage porosity of a radiating fin, which comprises a rack, an upper die and a lower die, wherein the upper die is arranged at the upper end in the rack, an injection port is formed in the upper end of the rack and is connected with the upper die, partition plates are arranged in the upper die at equal intervals, cooling mechanisms are arranged in the upper die and the partition plates, the lower die is arranged in the upper die, and a supporting mechanism is arranged at the lower end of the lower die; when cooling shelves start, the power of water pump is lower, and the water pump makes water flow in hydrodynamic force adjustment mechanism's inside, and most water can flow in cooling mechanism's inside to cool off the material fast, guarantee the rapid shaping of material, the material can begin to cool off from the fin district simultaneously, later progressively cools off to the bottom plate district, thereby makes the fin district when the cooling, and the material in bottom plate district can supply the material in fin district, avoids the phenomenon that the shrinkage cavity appears in the fin district.

Description

Compression casting device of shrinkage porosity is prevented to radiating fin

Technical Field

The invention relates to the technical field of radiating fins, in particular to a compression casting device for preventing radiating fins from loosening.

Background

When general device is used, its inside temperature can continuously rise, in order to avoid the device to appear high temperature influence efficiency or the phenomenon that the device damaged, need increase the radiating efficiency of device, reduce the temperature of device, and radiating fin is a common heat dissipation equipment, radiating fin mainly uses the die-casting device to process when making, impress the liquid material of high temperature into the inside of die-casting device, later cool off the shaping to the material, thereby die-casting the material into required shape, but general radiating fin has some shortcomings when processing, for example:

when carrying out die-casting to radiator fin, when the material of liquid form cools off the solidification gradually, because the material density of solid-state form can be greater than the material of liquid form usually, so the part of material can produce the phenomenon of shrinkage cavity at the in-process of cooling shaping, thereby cause radiator fin's surface to produce the flaw, and then influence radiator fin's outward appearance, simultaneously when taking out radiator fin from the die-casting device, can not effectually separate between radiator fin and the die-casting device, thereby make when taking out radiator fin, radiator fin easily appears the adhesion, cause radiator fin to appear incomplete phenomenon, and then make the die-casting success rate of device lower.

Disclosure of Invention

The invention aims to provide a die-casting device for preventing shrinkage porosity of a radiating fin, which aims to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: a die-casting device for preventing shrinkage porosity of a radiating fin comprises a rack, an upper die and a lower die, wherein the upper end inside the rack is provided with the upper die, the upper end of the rack is provided with an injection port, the injection port is connected with the upper die, a partition board is arranged at the equal distance inside the upper die, a cooling mechanism is arranged inside the upper die and the partition board, the lower die is arranged inside the upper die, the lower end of the lower die is provided with a supporting mechanism, the upper end of the rack is provided with a storage box, the storage box is positioned on the side surface of the injection port, a water pump is arranged inside the storage box, a hydrodynamic force adjusting mechanism is arranged at the upper end inside the rack, when the device is used, a material is injected into the upper die and the lower die through the injection port, the water pump is started subsequently, the water pump is divided into a cooling gear and a separation gear, and when the cooling gear is started, the power of the water pump is low, the water pump enables water to flow into the hydrodynamic force adjusting mechanism, the force on the lower die is small at the moment, most of the water flows into the cooling mechanism, so that the materials are cooled rapidly, rapid forming of the materials is guaranteed, the materials are cooled from the fin areas at the same time, then the materials are gradually cooled towards the bottom plate area, the materials in the bottom plate area can supplement the materials in the fin areas when the fin areas are cooled, the phenomenon of shrinkage cavities in the fin areas is avoided, the bottoms of the bottom plate areas are cooled finally, the shrinkage cavities can be formed at the bottoms of the bottom plate areas, after the materials are taken out, the shrinkage cavities can be eliminated only by polishing the bottoms of the bottom plate areas, the water flow speed of cooling gears is low, the materials are mainly cooled at the moment, the water flow speed is high when gears are separated, impact force is firstly generated on the lower die at the moment, and accordingly the separation between the materials and the die is assisted, the phenomenon of incomplete appearance of material is avoided, and later supporting mechanism drives the material and separates with the mould completely to take out the material from the inside of mould.

Further, the side of water pump is provided with inlet tube and drain pipe, the inlet tube is "people" font, the inlet tube opening orientation is moulded plastics the mouth, the other end of drain pipe is connected with hydrodynamic force adjustment mechanism, the inside of bin is provided with the deflector, the inboard of deflector is the arc, when the device is used, the inside that the inlet tube flowed into the water pump can be followed to the rivers, later from drain pipe flow to the external world again, and the inlet tube sets up the inside below position at the bin, so the inside of inlet tube can be preferentially flowed into to the water of below for the temperature of cooling water is lower, and the water that flows into in the bin can remove along the deflector, thereby form the vortex cooling zone on the opposite side upper end of bin, along with the joining rivers autogiration of water, increase the radiating rate of cooling water in the bin.

Further, the hydrodynamic force adjusting mechanism comprises a fixed column, a turbine mechanism and a vibration rod, wherein the turbine mechanism is rotatably arranged inside the fixed column, the vibration rod is slidably arranged inside the fixed column, the vibration rod penetrates through the fixed column, a lower die is arranged at the lower end of the vibration rod, water flows into the fixed column from a drain pipe, the water flows rotate when the water flow speed is low, so that most of water flows into the cooling mechanism to cool the material, and when the water flow speed is high, the rotating water flow disappears, so that a large thrust is generated on the vibration rod, the auxiliary die is separated from the material, and when the vibration rod is impacted by water, the water flows are supplied by the water pump, the water pump uses the impeller inside to rotate to provide hydrodynamic force, and gaps are formed between the impellers, so that gaps exist between the water flows, when the vibrations pole did not take place to remove, the effect of refluence can be produced to the water of impact to impel next time and weaken, so the water strength of refluence also can weaken owing to weaken the propulsive force to the vibrations pole, thereby make the propulsive strength increase next time, make the continuous emergence of impact force to the vibrations pole change, and then the phenomenon of taking place the separation between the material of being convenient for and the mould.

Furthermore, the turbine mechanism comprises a fixed frame, turbine blades, a torsion spring and a central column, the fixed frame is in a circular ring shape, the turbine blades are arranged in the fixed frame in an equiangular rotation mode, the torsion spring is arranged on the outer side of each turbine blade, the other end of the torsion spring is connected with the fixed frame, the central column is arranged on the side face of each turbine blade, the central column is in rotary connection with the turbine blades, when water with small flow velocity flows through the fixed frame, the turbine blades are in an inclined shape, after the water is in contact with the turbine blades, the turbine blades can guide the water, so that the water flow rotates, the branch pipes are located below the turbine blades, when the water flow rotates, the speed of the water flow entering the branch pipes can be accelerated, the speed of the water flow entering the cooling mechanism is accelerated, the cooling effect of the device is increased, and when the mold is required to be separated from a material due to large water flow velocity, rivers produce very big impact force to turbine blade, the torsional spring is not enough to support turbine blade, thereby make turbine blade take place to rotate, turbine blade rotates this moment and is vertical form, reduce the impact force of rivers to turbine blade, and also can produce thrust to turbine blade when the water velocity is very fast, thereby make mount and turbine blade take place to rotate, further avoid rivers to cause rotatoryly, make rivers produce very big impact force to the shock bar, the mould of being convenient for is separated with the material.

Further, the side of fixed column is provided with the branch pipe, turbine mechanism's bottom is provided with fixed spring, turbine mechanism and fixed column are sliding connection, and when rivers were less, turbine mechanism received rivers strength was less, so fixed spring can support turbine mechanism, avoided turbine mechanism's position to change, and when rivers strength was great, fixed spring was not enough to support turbine mechanism, so turbine mechanism can reciprocate, thereby make turbine mechanism can block up the branch pipe in the part, thereby cause the inside that water can not flow in the branch pipe, increase rivers to the pressure of vibrations pole.

Furthermore, the cooling mechanism comprises a fixed channel and a circulating pipe, the side surface of the branch pipe is connected with a guide channel, the guide channel is arranged at the upper end of the inner part of the upper die, the side surface of the guide channel is connected with the fixed channel, the guide channel is positioned above the upper die and is in a backflow shape, the guide channel firstly extends to the center of the upper die and then turns back from the center of the upper die, and the fixed channel is connected with the turning back side, so that when water flows, the upper part of the upper die is firstly cooled, then the water flows into the inner part of the fixed channel from the middle to the periphery in sequence, then the fin area of the material is cooled, and as the water is firstly cooled in the upper part of the upper die, the overall temperature of the material is firstly reduced, and the upper temperature of the material is lower than the lower temperature of the material, and then the fin area of the material is cooled, make the cooling rate in fin district be greater than the cooling rate in bottom plate district to make the bottom cooling rate in bottom plate district slowest, make the shrinkage cavity can form the bottom in bottom plate district, and the rivers of the guide way department of turning back can flow into the fixed way of center department earlier, so the holistic intermediate position cooling effect of material can be superior to the both sides of physics, so the shrinkage cavity can form the bottom plate district below both sides at the material, thereby the later stage of being convenient for is handled the shrinkage cavity.

Furthermore, the fixed passage is arranged inside the clapboard and is V-shaped, the water inlet of the fixed passage is positioned at the two sides of the upper end, the center of the lower end of the fixed channel is provided with a circulating pipe, the other end of the circulating pipe is arranged at the upper end of the side surface of the storage tank, when water flows in from the two sides of the upper end of the fixed channel respectively, the water flows downwards while flowing forwards in the fixed channel, thereby changing the water flow in the fixed channel, and turning back after the water flow contacts with the inside of the fixed channel, wherein the fixed channel is in a V shape, the turned-back water flow is positioned below the fixed channel, therefore, the two types of water flow returning by folding can be flushed, and the rotating water flow can be generated at the circulating pipe, so that foreign matters in the fixed channel are attracted, the blocking phenomenon of the fixed channel is avoided, and the water outflow efficiency in the fixed channel is increased.

Further, supporting mechanism includes support column and electric putter, electric putter sets up the inside lower extreme in the frame, electric putter's upper end is provided with the support column, support column and electric putter are extending structure, the upper end of support column is connected with the bed die, and electric putter can drive the support column and move from top to bottom when reciprocating to the position of control bed die is closed and is opened to the mould, and the inside second spring that sets up again of junction of support column and electric putter, so can effectually support the support column, before separating material and mould, can so that the bed die vibrations, the material of being convenient for separates with the mould.

Compared with the prior art, the invention has the following beneficial effects: when the invention is used, materials are injected into the upper die and the lower die through the injection port, then the water pump is started, the water pump is divided into a cooling gear and a separating gear, when the cooling gear is started, the power of the water pump is lower, the water pump enables water to flow into the hydrodynamic force adjusting mechanism, the force on the lower die is smaller at the moment, most of the water flows into the cooling mechanism, so that the materials are rapidly cooled, the materials are ensured to be rapidly formed, meanwhile, the materials are cooled from the fin area and then are gradually cooled to the bottom plate area, so that the materials in the bottom plate area can supplement the materials in the fin area when the fin area is cooled, the phenomenon of shrinkage cavity in the fin area is avoided, the bottom of the bottom plate area is finally cooled, so the shrinkage cavity can be formed at the bottom of the bottom plate area, and after the materials are taken out, the shrinkage cavity can be eliminated only by polishing the bottom of the bottom plate area, the water velocity of cooling shelves is slower, mainly cools off the material this moment, and water velocity is very fast when separating the shelves, can produce the impact force to the bed die earlier this moment to separate between supplementary material and the mould, avoid the incomplete phenomenon to appear in the material, later supporting mechanism drives the material and separates with the mould completely, thereby takes out the material from the inside of mould.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a top cross-sectional view of the bin of the present invention;

FIG. 3 is a schematic view of the upper mold and circulation tube mounting structure of the present invention;

FIG. 4 is a schematic view of the upper and lower die mounting structure of the present invention;

FIG. 5 is a top cross-sectional view of the upper mold and guide way installation of the present invention;

FIG. 6 is a schematic view of water flow in the fixed way;

FIG. 7 is a schematic illustration of a cooling rail anchor post;

fig. 8 is a schematic view of the inside of the separation lever fixing post.

In the figure: 1. a frame; 2. an upper die; 3. a partition plate; 4. a lower die; 5. a support pillar; 6. an electric push rod; 7. an injection molding port; 8. a storage tank; 9. a guide plate; 10. a water pump; 11. a water inlet pipe; 12. a drain pipe; 13. fixing a column; 14. a fixed mount; 15. a turbine blade; 16. a torsion spring; 17. a central column; 18. fixing the spring; 19. a vibration rod; 20. a branch pipe; 21. a fixed way; 22. a circulation pipe; 23. a guide way.

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.

Referring to fig. 1 to 8, the present invention provides a technical solution: a die-casting device for preventing shrinkage porosity of a radiating fin comprises a frame 1, an upper die 2 and a lower die 4, wherein the upper end inside the frame 1 is provided with the upper die 2, the upper end of the frame 1 is provided with an injection port 7, the injection port 7 is connected with the upper die 2, partition plates 3 are equidistantly arranged inside the upper die 2, cooling mechanisms are arranged inside the upper die 2 and the partition plates 3, the lower die 4 is arranged inside the upper die 2, the lower end of the lower die 4 is provided with a supporting mechanism, a storage box 8 is arranged at the upper end of the frame 1, the storage box 8 is positioned on the side surface of the injection port 7, a water pump 10 is arranged inside the storage box 8, a hydrodynamic force adjusting mechanism is arranged at the upper end inside the frame 1, when the device is used, materials are injected into the upper die 2 and the lower die 4 through the injection port 7, then the water pump 10 is started, the water pump 10 is divided into a cooling gear and a separation gear, when the cooling gear is started, the power of the water pump 10 is low, the water pump 10 enables water to flow into the hydrodynamic force adjusting mechanism, the force on the lower die 4 is small at the moment, most of the water flows into the cooling mechanism, so that the materials are rapidly cooled, rapid forming of the materials is guaranteed, the materials are cooled from the fin area at the same time, and then are gradually cooled towards the bottom plate area, so that the materials in the bottom plate area can supplement the materials in the fin area when the fin area is cooled, the phenomenon of shrinkage cavity in the fin area is avoided, the bottom of the bottom plate area is finally cooled, so that the shrinkage cavity can be formed at the bottom of the bottom plate area, after the materials are taken out, the shrinkage cavity can be eliminated only by polishing the bottom of the bottom plate area, the water flow speed of the cooling gear is low, at the moment, the materials are mainly cooled, the water flow speed is high when the gear is separated, at the moment, the impact force is firstly generated on the lower die 4, thereby separate between supplementary material and the mould, avoid the incomplete phenomenon to appear in the material, later supporting mechanism drives the material and separates with the mould completely to take out the material from the inside of mould.

Water pump 10's side is provided with inlet tube 11 and drain pipe 12, inlet tube 11 is "people" font, inlet tube 11 opening orientation is moulded plastics mouthful 7, the other end of drain pipe 12 is connected with hydrodynamic force adjustment mechanism, the inside of bin 8 is provided with deflector 9, the inboard of deflector 9 is the arc, when the device is used, the inside that water pump 10 can be flowed into from inlet tube 11 to the rivers, later from drain pipe 12 flow to the external world again, and inlet tube 11 sets up the inside below position at bin 8, so the water of below can be preferentially flowed into the inside of inlet tube 11, make the temperature of cooling water lower, and the water that flows into in bin 8 can remove along deflector 9, thereby form the vortex cooling zone on bin 8's opposite side upper end, along with the joining rivers autogiration of water, increase the radiating rate of cooling water in bin 8.

The hydrodynamic force adjusting mechanism comprises a fixed column 13, a turbine mechanism and a vibration rod 19, wherein the turbine mechanism is rotatably arranged inside the fixed column 13, the vibration rod 19 is slidably arranged inside the fixed column 13, the vibration rod 19 penetrates through the fixed column 13, a lower die 4 is arranged at the lower end of the vibration rod 19, water flows into the fixed column 13 from a water discharge pipe 12, the water flow rotates when the water flow speed is low, so that most of water flows into the cooling mechanism to cool materials, the rotating water flow disappears when the water flow speed is high, so that large thrust is generated on the vibration rod 19 to assist the separation of the die and the materials, and when the vibration rod 19 is impacted by water, as the water flow is supplied by the water pump 10, the water pump 10 utilizes the rotation of the internal impeller to provide hydrodynamic force, and gaps are formed between the impellers, so that gaps are formed between the water flows, when vibrations pole 19 did not take place to remove, the effect of refluence can be produced to the water of impact to impel next time and weaken, so the water strength of refluence also can weaken owing to weaken the propulsive force to vibrations pole 19, thereby make the propulsive strength increase next time, make the continuous emergence of impact force to vibrations pole 19 change, and then the phenomenon of taking place the separation between the material of being convenient for and the mould.

The turbine mechanism comprises a fixed frame 14, turbine blades 15, a torsion spring 16 and a central column 17, the fixed frame 14 is in a circular ring shape, the turbine blades 15 are arranged in the fixed frame 14 in an equiangular rotation manner, the torsion spring 16 is arranged on the outer side of the turbine blades 15, the other end of the torsion spring 16 is connected with the fixed frame 14, the central column 17 is arranged on the side surface of the turbine blades 15, the central column 17 is in a rotation connection with the turbine blades 15, when water with a low flow speed flows through the fixed frame 14, the turbine blades 15 are in an inclined shape, so that after the water is in contact with the turbine blades 15, the turbine blades 15 guide the water to enable the water to rotate, the branch pipes 20 are positioned below the turbine blades 15, when the water rotates, the speed of the water flowing into the branch pipes 20 is accelerated, the speed of the water flowing into the cooling mechanism is accelerated, and the cooling effect of the device is improved, and when the great needs of rivers speed are separated mould and material, rivers produce very big impact force to turbine blade 15, torsional spring 16 is not enough to support turbine blade 15, thereby make turbine blade 15 take place to rotate, turbine blade 15 rotates this moment and is vertical form, reduce rivers to the impact force of turbine blade 15, and also can produce thrust to turbine blade 15 when rivers speed is very fast, thereby make mount 14 and turbine blade 15 take place to rotate, further avoid rivers to cause rotatoryly, make rivers produce very big impact force to shock rod 19, be convenient for mould and material to separate.

The side of fixed column 13 is provided with branch pipe 20, turbo mechanism's bottom is provided with fixed spring 18, turbo mechanism and fixed column 13 are sliding connection, when rivers are less, the rivers power that turbo mechanism received is less, so fixed spring 18 can support turbo mechanism, avoid turbo mechanism's position to change, and when rivers power is great, fixed spring 18 is not enough to support turbo mechanism, so turbo mechanism can reciprocate, thereby make turbo mechanism can block up branch pipe 20 in part time, thereby make into the inside that water can not flow into branch pipe 20, increase rivers to the pressure of vibrations pole 19.

The cooling mechanism comprises a fixed channel 21 and a circulating pipe 22, a guide channel 23 is connected to the side surface of the branch pipe 20, the guide channel 23 is arranged at the upper end in the upper die 2, the side surface of the guide channel 23 is connected with the fixed channel 21, the guide channel 23 is positioned above the upper die 2, the guide channel 23 is in a backflow shape, the guide channel 23 firstly extends to the center of the upper die 2 and then turns back from the center of the upper die 2, and the fixed channel 21 is connected to the turning back side, so that when water flows, the upper part of the upper die 2 is firstly cooled, then the water flows into the fixed channel 21 from the middle to the periphery in sequence, then the fin area of the material is cooled, the whole temperature of the material is firstly reduced due to the fact that the inner part above the upper die 2 is cooled, and the temperature above the material is lower than the temperature below the material, and then the fin area of the material is cooled, make the cooling rate in fin district be greater than the cooling rate in bottom plate district to make the bottom cooling rate in bottom plate district slowest, make the shrinkage cavity can form the bottom in bottom plate district, and the rivers of the 23 department of turning back of direction way can flow into the fixed way 21 of center department earlier, so the holistic intermediate position cooling effect of material can be superior to the both sides of physics, so the shrinkage cavity can form the bottom plate district below both sides at the material, thereby the later stage of being convenient for is handled the shrinkage cavity.

The fixed passage 21 is arranged in the partition board 3, the fixed passage 21 is V-shaped, the water inlet of the fixed passage 21 is arranged at two sides of the upper end, the center of the lower end of the fixed passage 21 is provided with a circulating pipe 22, the other end of the circulating pipe 22 is arranged at the upper end of the side surface of the storage tank 8, when water flows in from both sides of the upper end of the fixed way 21, respectively, the water flows downward while flowing forward in the fixed way 21, so that the water flow inside the fixed way 21 is changed and the water flow is turned back after contacting the inside of the fixed way 21, and the fixed way 21 is in a V shape, and the turned-back water flow is positioned below the fixed way 21, the two types of the water flow which is folded back can be flushed, and at the moment, the rotating water flow can be generated at the circulating pipe 22, thereby sucking the foreign matters in the fixed passage 21, avoiding the blockage phenomenon of the fixed passage 21 and simultaneously increasing the efficiency of water flowing out of the fixed passage 21.

Supporting mechanism includes support column 5 and electric putter 6, electric putter 6 sets up the inside lower extreme in frame 1, electric putter 6's upper end is provided with support column 5, support column 5 and electric putter 6 are extending structure, the upper end of support column 5 is connected with bed die 4, electric putter 6 can drive support column 5 and remove from top to bottom when reciprocating, thereby control the position of bed die 4, close and open the mould, and the inside second spring that sets up again of junction of support column 5 and electric putter 6, so can effectually support column 5, before separating the material with the mould, can so that bed die 4 vibrations, be convenient for the material and the mould separate.

The working principle of the invention is as follows: when the device is used, materials are injected into the upper die 2 and the lower die 4 through the injection molding port 7, then the water pump 10 is started, the water pump 10 is divided into a cooling gear and a separating gear, when the cooling gear is started, the power of the water pump 10 is low, the water pump 10 enables water to flow into the hydrodynamic force adjusting mechanism, the force on the lower die 4 is small at the moment, most of water can flow into the cooling mechanism, so that the materials are rapidly cooled, rapid forming of the materials is guaranteed, meanwhile, the materials can start to be cooled from the fin area, then the materials are gradually cooled to the bottom plate area, and therefore when the fin area is cooled, the materials in the bottom plate area can supplement the materials in the fin area, the phenomenon that the fin area is shrunk is avoided, the bottom of the bottom plate area is finally cooled, the shrunk holes can be formed in the bottom of the bottom plate area, and after the materials are taken out, the shrunk holes can be eliminated only by polishing the bottom of the bottom plate area, the water velocity of cooling shelves is slower, mainly cools off the material this moment, and water velocity is very fast when separating the shelves, can produce the impact force to bed die 4 earlier this moment to separate between supplementary material and the mould, avoid the incomplete phenomenon to appear in the material, later supporting mechanism drives the material and separates with the mould completely, thereby takes out the material from the inside of mould.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a die-casting device of shrinkage porosity is prevented to radiating fin, includes frame (1), goes up mould (2) and bed die (4), its characterized in that: the utility model discloses a mould, including frame (1), the inside upper end of frame (1) is provided with mould (2), the upper end of frame (1) is provided with injection molding mouth (7), and injection molding mouth (7) is connected with last mould (2), the inside equidistance of going up mould (2) is provided with baffle (3), the inside of going up mould (2) and baffle (3) is provided with cooling body, the inside of going up mould (2) is provided with bed die (4), the lower extreme of bed die (4) is provided with supporting mechanism, the upper end of frame (1) is provided with bin (8), and bin (8) are located the side of injection molding mouth (7), the inside of bin (8) is provided with water pump (10), the inside upper end of frame (1) is provided with hydrodynamic force adjustment mechanism.

2. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 1, wherein: the side of water pump (10) is provided with inlet tube (11) and drain pipe (12), inlet tube (11) are "people" font, inlet tube (11) opening orientation mouthful (7) of moulding plastics, the other end of drain pipe (12) is connected with hydrodynamic force adjustment mechanism, the inside of bin (8) is provided with deflector (9), the inboard of deflector (9) is the arc.

3. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 1, wherein: hydrodynamic force adjustment mechanism's including fixed column (13), turbine mechanism and vibrations pole (19), the inside rotation of fixed column (13) is provided with turbine mechanism, the inside slip of fixed column (13) is provided with vibrations pole (19), vibrations pole (19) run through fixed column (13), the lower extreme of vibrations pole (19) is provided with bed die (4).

4. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 3, wherein: turbine mechanism includes mount (14), turbine blade (15), torsional spring (16) and center post (17), mount (14) are ring shape, the inside of mount (14) is the angular rotation such as being provided with turbine blade (15), the outside of turbine blade (15) is provided with torsional spring (16), the other end of torsional spring (16) is connected with mount (14), the side of turbine blade (15) is provided with center post (17), and center post (17) and turbine blade (15) are connected for rotating.

5. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 3, wherein: the side of fixed column (13) is provided with branch pipe (20), the bottom of turbine mechanism is provided with fixed spring (18), turbine mechanism and fixed column (13) are sliding connection.

6. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 1, wherein: the cooling mechanism comprises a fixed channel (21) and a circulating pipe (22), the side surface of the branch pipe (20) is connected with a guide channel (23), the guide channel (23) is arranged at the upper end of the inside of the upper die (2), and the side surface of the guide channel (23) is connected with the fixed channel (21).

7. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 6, wherein: fixed way (21) are seted up in the inside of baffle (3), fixed way (21) are "V" shape, the water inlet of fixed way (21) is located the both sides of upper end, the lower extreme center department of fixed way (21) is provided with circulating pipe (22), the other end setting of circulating pipe (22) is in the side upper end of bin (8).

8. The die-casting device for preventing the shrinkage porosity of the radiating fin according to claim 1, wherein: the supporting mechanism comprises a supporting column (5) and an electric push rod (6), the electric push rod (6) is arranged at the lower end of the inside of the rack (1), the supporting column (5) is arranged at the upper end of the electric push rod (6), the supporting column (5) and the electric push rod (6) are of telescopic structures, and the upper end of the supporting column (5) is connected with the lower die (4).