CN218963993U

CN218963993U - Low-pressure metal aluminum casting mold

Info

Publication number: CN218963993U
Application number: CN202223270649.4U
Authority: CN
Inventors: 张协; 孙建军
Original assignee: Changshu Xiangbo Precision Machinery Co ltd
Current assignee: Changshu Xiangbo Precision Machinery Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-05
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a low-pressure metal aluminum casting mold, which comprises a mold assembly, wherein two ends of the mold assembly are symmetrically and fixedly connected with cooling assemblies, and the mold assembly comprises an upper mold, a lower mold, a base and an upper lifting plate and a lower lifting plate of a press. The mold assembly of the utility model cancels sand mold modeling, uses a special press to mold the upper and lower molds of the metal mold and the left and right molds to form an inner cavity, and uses air pressure to drive aluminum liquid into the inner cavity of the mold for one-step molding, thereby being capable of more conveniently and rapidly completing production, reducing waste of auxiliary materials, improving the strength and the dimensional accuracy of workpieces, increasing the finish of the outer surface, having better casting molding performance, being beneficial to the shaping of the contour and the surface finish, improving the mechanical performance and the casting speed of castings, reducing the manual workload, and improving the cooling speed of metal aluminum castings in the cavities of the upper mold and the lower mold by adding the cooling assembly, the semiconductor refrigerating piece and the heat conducting sheet.

Description

Low-pressure metal aluminum casting mold

Technical Field

The utility model relates to the technical field of dies, in particular to a low-pressure metal aluminum casting die.

Background

The die is various dies and tools for obtaining the required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, and for the metal processing industry, the aluminum alloy die casting die is a necessary condition for die casting production, the aluminum alloy die casting die can be used for pressing castings with complex shapes, and the die with correct and reasonable structure can play a decisive role in production.

In the prior art, for example, the Chinese patent number is: the utility model provides an "aluminium foundry goods casting die utensil" of CN208866343U, including being left die holder and the right die holder that control relative setting, be fixed with left die on the inside wall of left die holder, be fixed with right die on the inside wall of right die holder, form the die cavity after left die and the right die cooperation, form the feed channel with the die cavity intercommunication at the top after left die and right die cooperation, the edge of the cavity of left die inside is provided with the protruding muscle towards right die one side, be provided with on the terminal surface of right die towards left die one side and supply protruding muscle embedded recess after left die and right die cooperation, form seal structure after protruding muscle and recess cooperation.

However, the conventional sand casting has large manual quantity, low production speed and many auxiliary materials, and the existing low-pressure metal aluminum casting mold has the following defects:

1. the strength and the dimensional accuracy are low, and the cast piece produced by sand casting has low strength and poor dimensional accuracy because of high porosity;

2. the surface finish is poor, in sand casting, casting sand and a molding sand binder are mainly used, if the sand mould is improperly selected, the surface texture of the wall of the internal sand mould is obvious easily, and the surface appearance of the casting is seriously affected;

3. the existing mould needs to wait for the metal solution to cool naturally, and the metal solution needs to wait for a long time before solidifying, so that the production efficiency is low.

Disclosure of Invention

The utility model aims to provide a low-pressure metal aluminum casting mold, which aims to solve the problems that the existing low-pressure metal aluminum casting mold provided by the background art is low in strength and dimensional accuracy, and a casting piece produced by sand casting is low in strength and poor in dimensional accuracy because of high porosity; the surface finish is poor, in sand casting, casting sand and a molding sand binder are mainly used, if the sand mould is improperly selected, the surface texture of the wall of the internal sand mould is obvious easily, and the surface appearance of the casting is seriously affected; the existing die needs to wait for the metal solution to cool naturally, and the metal solution needs to wait for a long time before solidifying, so that the problem of low production efficiency is caused.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low pressure metal aluminum foundry goods mould, includes the mould subassembly, the both ends symmetry fixedly connected with cooling module of mould subassembly, the mould subassembly includes mould, lower mould, base and press oscilaltion board, the bottom of lower mould and the top fixed mounting of base, one side of lower mould is provided with left side mould, just the opposite side of lower mould is provided with right side mould, cooling module includes fixed plate, bottom plate, flexible motor, backup pad and semiconductor refrigeration spare, the one end of flexible motor is provided with the telescopic link, just one side of backup pad and the one end fixed mounting of telescopic link, just the opposite side of backup pad and the inboard fixed connection of semiconductor refrigeration spare, the outside of semiconductor refrigeration spare evenly is provided with a plurality of conducting strips.

Preferably, the top one end of bottom plate and the bottom fixed connection of fixed plate, just the other end symmetry fixedly connected with two mounting panels of bottom plate, the fixed plate is used for fixed flexible motor, and the mounting panel is used for installing with the base simultaneously, conveniently fixes cooling module in the mould subassembly both sides.

Preferably, through holes are symmetrically formed in two ends of the mounting plate in a penetrating mode, bolts are arranged on the inner sides of the through holes, and the mounting plate can be fixed on two sides of the base through the bolts.

Preferably, one end of the telescopic motor is fixedly mounted with the inner side of the fixed plate, threaded holes are formed in two sides of the base, and the mounting mode of threaded connection of the bolts and the threaded holes is adopted, so that the cooling assembly is convenient to mount and dismount.

Preferably, the inner side of the threaded hole is in threaded connection with one end of the bolt, the bottom of the upper and lower lifting plates of the press is fixedly arranged at the top of the upper die, the upper and lower lifting plates of the press can drive the upper die to move up and down, and the upper die and the lower die are conveniently covered with each other.

Preferably, a fixing frame is arranged at the top of the upper and lower lifting plates of the press, and the fixing frame is used for fixing the upper and lower lifting plates of the press.

Preferably, the top of the upper die is fixedly connected with a push rod, after the upper die moves downwards and the lower die is covered, the left die and the right die are installed and fixed on left and right hydraulic plates of the press, and the left die and the right die are respectively fixed on two sides of the upper die, so that pouring can be performed after the completion.

Compared with the prior art, the utility model has the beneficial effects that:

1. the die assembly mainly comprises an upper die, a lower die, a left die and a right die, sand die modeling is canceled, a special press is used for clamping the upper die, the lower die, the left die and the right die of the metal die to form an inner cavity, and aluminum liquid is injected into the inner cavity of the die to be molded at one time by virtue of air pressure, so that the production can be more conveniently and rapidly completed, the waste of auxiliary materials is reduced.

2. According to the utility model, by adding the cooling component, the telescopic motor can drive the supporting plate and the semiconductor refrigerating piece to be close to two sides of the upper die and the lower die through the telescopic rod, the semiconductor refrigerating piece, the heat conducting fin and the outer surfaces of the upper die and the lower die are mutually attached, the semiconductor refrigerating piece is started, the semiconductor refrigerating piece cools the upper die and the lower die, and meanwhile, the heat conducting fin can discharge the heat on the surfaces of the upper die and the lower die outwards, so that the cooling speed of metal aluminum castings in cavities of the upper die and the lower die is increased, and the production efficiency of the metal aluminum castings is improved.

Drawings

FIG. 1 is a schematic view in partial cross-section of a low pressure aluminum metal casting mold in accordance with the present utility model;

FIG. 2 is an elevation view of a mold assembly of a low pressure aluminum metal casting mold in accordance with the present utility model;

FIG. 3 is an elevation view of a low pressure aluminum metal casting mold in accordance with the present utility model;

fig. 4 is a schematic structural view of a cooling module of a low-pressure aluminum metal casting mold according to the present utility model.

In the figure:

1. a cooling assembly; 2. a mold assembly; 11. a fixing plate; 12. a bottom plate; 13. a telescopic motor; 14. a telescopic rod; 15. a support plate; 16. a bolt; 17. a mounting plate; 18. a through hole; 19. a semiconductor refrigeration member; 20. a heat conductive sheet; 21. a base; 22. a left side die; 23. a lower die; 24. a right side mold; 25. a fixing frame; 26. an upper die; 27. a press up-down lifting plate; 28. a threaded hole; 29. and (5) a push rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a low pressure metal aluminum foundry goods mould, including mould subassembly 2, the both ends symmetry fixedly connected with cooling module 1 of mould subassembly 2, mould subassembly 2 includes mould 26, lower mould 23, base 21 and press oscilaltion board 27, the bottom of lower mould 23 and the top fixed mounting of base 21, one side of lower mould 23 is provided with left side mould 22, and the opposite side of lower mould 23 is provided with right side mould 24, mould subassembly 2 has cancelled sand moulding, use special press to mould up-down and left and right moulds the mould compound die formation inner chamber of metal mould, the one shot forming is beaten into the aluminium liquid to the atmospheric pressure, thereby can accomplish the production more conveniently and fast and reduce auxiliary material's waste, cooling module 1 includes fixed plate 11, bottom plate 12, flexible motor 13, backup pad 15 and semiconductor refrigeration piece 19, the one end of flexible motor 13 is provided with telescopic link 14, and one side of backup pad 15 and the one end fixed mounting of telescopic link 14, and the opposite side of backup pad 15 and the inboard fixed connection of semiconductor refrigeration piece 19, the outside of semiconductor refrigeration piece 19 evenly is provided with a plurality of conducting strips 20, conducting strip 20 and semiconductor refrigeration piece 19 can be to the mould 26 and cooling down mould cavity in order to accelerate the metal casting 23 with the upper and lower mould 23.

As shown in fig. 3 and 4: the top one end of bottom plate 12 and the bottom fixed connection of fixed plate 11, and the other end symmetry fixed connection of bottom plate 12 has two mounting panels 17, and fixed plate 11 is used for fixed flexible motor 13, and mounting panel 17 are used for installing with base 21 simultaneously, conveniently fixes cooling module 1 in the mould subassembly 2 both sides.

As shown in fig. 3 and 4: through holes 18 are symmetrically formed in two ends of the mounting plate 17, bolts 16 are arranged on the inner sides of the through holes 18, and the mounting plate 17 can be fixed on two sides of the base 21 through the bolts 16.

As shown in fig. 2-4: one end of the telescopic motor 13 is fixedly mounted on the inner side of the fixed plate 11, threaded holes 28 are formed in two sides of the base 21, and the mounting mode of threaded connection of the bolts 16 and the threaded holes 28 is adopted, so that the cooling assembly 1 is convenient to mount and dismount.

As shown in fig. 1-4: the inner side of the threaded hole 28 is in threaded connection with one end of the bolt 16, the bottom of the upper and lower lifting plate 27 of the press is fixedly arranged on the top of the upper die 26, and the upper and lower lifting plate 27 of the press can drive the upper die 26 to move up and down, so that the upper die 26 and the lower die 23 can be conveniently covered with each other.

As shown in fig. 1: the top of the upper and lower lifting plates 27 of the press is provided with a fixing frame 25, and the fixing frame 25 is used for fixing the upper and lower lifting plates 27 of the press.

As shown in fig. 2: the top of the upper die 26 is fixedly connected with a push rod 29, after the upper die 26 moves downwards and the lower die 23 is covered, the left die 22 and the right die 24 are installed and fixed on left and right hydraulic plates of the press, and the left die 22 and the right die 24 are respectively fixed on two sides of the upper die 26, so that pouring can be performed after the completion.

The application method and the working principle of the device are as follows: when the die assembly 2 is used, the lower die 23 is firstly installed and fixed on the base 21 to align with an aluminum liquid pouring port at the bottom of a press, then the upper die 26 is fixed on an upper lifting plate and a lower lifting plate 27 of the press, then the left die 22 and the right die 24 are installed and fixed on left and right hydraulic plates of the press, after the completion, a low-pressure casting machine is only required to be opened, aluminum in a heat preservation pool below the press is hydraulically pressed into the die, sand die molding is omitted from the die assembly 2, a special press is used for clamping the upper die, the lower die and the left die and the right die of the metal die to form an inner cavity, and the aluminum liquid is pumped into the inner cavity of the die by virtue of air pressure for one-step molding, so that the production can be more conveniently and rapidly completed, the waste of auxiliary materials is reduced;

meanwhile, the cooling assemblies 1 are added on two sides of the die assembly 2, when metal aluminum castings in the die assembly 2 need to be cooled, the telescopic motor 13 is started, the telescopic motor 13 drives the supporting plate 15 and the semiconductor refrigerating pieces 19 to be close to two sides of the upper die 26 and the lower die 23 through the telescopic rods 14, the semiconductor refrigerating pieces 19 and the heat conducting fins 20 move to two sides of the die assembly 2 and are mutually attached to the outer surfaces of the upper die 26 and the lower die 23, the semiconductor refrigerating pieces 19 are started, the semiconductor refrigerating pieces 19 cool the upper die 26 and the lower die 23, and meanwhile, heat on the surfaces of the upper die 26 and the lower die 23 can be discharged outwards through the heat conducting fins 20, so that the cooling speed of the metal aluminum castings in the cavities of the upper die 26 and the lower die 23 is accelerated.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a low pressure metal aluminum casting mould, includes mould subassembly (2), its characterized in that, the both ends symmetry fixedly connected with cooling module (1) of mould subassembly (2), mould subassembly (2) are including last mould (26), lower mould (23), base (21) and press osculum (27), the bottom of lower mould (23) and the top fixed mounting of base (21), one side of lower mould (23) is provided with left side mould (22), just the opposite side of lower mould (23) is provided with right side mould (24), cooling module (1) are including fixed plate (11), bottom plate (12), flexible motor (13), backup pad (15) and semiconductor refrigeration piece (19), the one end of flexible motor (13) is provided with telescopic link (14), just one side of backup pad (15) and the one end fixed mounting of telescopic link (14), just the opposite side of backup pad (15) and the inboard fixed connection of semiconductor refrigeration piece (19), the outside of semiconductor refrigeration piece (19) evenly is provided with a plurality of heat conducting strips (20).

2. The low pressure metallic aluminum casting mold as recited in claim 1, wherein: one end of the top of the bottom plate (12) is fixedly connected with the bottom of the fixed plate (11), and the other end of the bottom plate (12) is symmetrically and fixedly connected with two mounting plates (17).

3. The low pressure metallic aluminum casting mold as recited in claim 2, wherein: through holes (18) are symmetrically formed in the two ends of the mounting plate (17) in a penetrating mode, and bolts (16) are arranged on the inner sides of the through holes (18).

4. The low pressure metallic aluminum casting mold as recited in claim 2, wherein: one end of the telescopic motor (13) is fixedly arranged on the inner side of the fixed plate (11), and threaded holes (28) are formed in two sides of the base (21).

5. The low pressure metallic aluminum casting mold as recited in claim 4, wherein: the inner side of the threaded hole (28) is in threaded connection with one end of the bolt (16), and the bottom of the upper and lower lifting plate (27) of the press is fixedly arranged on the top of the upper die (26).

6. The low pressure metallic aluminum casting mold as recited in claim 1, wherein: the top of the upper and lower lifting plate (27) of the press is provided with a fixing frame (25).

7. The low pressure metallic aluminum casting mold as recited in claim 1, wherein: the top of the upper die (26) is fixedly connected with a push rod (29).