CN217370461U

CN217370461U - Water-cooled mold for metal powder injection molding

Info

Publication number: CN217370461U
Application number: CN202220697452.XU
Authority: CN
Inventors: 王宁军
Original assignee: Nanjing Henty Electronics Co ltd
Current assignee: Nanjing Henty Electronics Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-09-06
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a water-cooled mould for metal powder injection molding, which relates to the technical field of moulds and comprises a shell, wherein a support column is fixedly arranged on the outer wall of the upper surface of the shell, a top end of the support column is fixedly connected with a top plate, a lower surface of the top plate is fixedly provided with an upper mould base, a lower mould base is arranged below the upper mould base, a lower surface of the lower mould base is fixedly connected with a support rod, a bottom end of the support rod is fixedly connected with a movable plate, and a speed reducing motor is fixedly arranged on the outer wall of the shell. And the discharged water enters the water cooling tank through the second water inlet pipe, and the die cavity is rapidly cooled.

Description

Water-cooled mold for metal powder injection molding

Technical Field

The utility model relates to the technical field of mold, especially, relate to a metal powder injection moulding's water-cooled mould.

Background

Metal injection molding is a molding method in which a plasticized mixture of metal powder and its binder is injected into a mold. The preparation method comprises the steps of mixing the selected powder with a binder, granulating the mixture, and then performing injection molding to obtain the required shape. The polymer imparts its viscous flow characteristics to the mix, which aids in the uniformity of forming, cavity filling and powder packing. After forming, the binder is removed, and the degreased blank is sintered. Some sintered products may be subjected to further densification, heat treatment or machining. The sintered product not only has the same complex shape and high precision as the product obtained by the plastic injection molding method, but also has the physical, chemical and mechanical properties close to those of the forged piece. The process technology is suitable for mass production of small-sized, precise and metal parts with complex three-dimensional shapes and special performance requirements.

However, the existing mold has many problems or defects: traditional mould is in the in-service use, when carrying out injection moulding, its die cavity temperature is higher, and the time overlength through the natural cooling shaping, it is consuming time longer to dispel the heat, has reduced cooling efficiency, has reduced production efficiency, makes the radiating effect of mould not good, consequently needs a metal powder injection moulding's water-cooled mould.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a water-cooled mold for metal powder injection molding.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water-cooled mold for metal powder injection molding comprises a shell, wherein a support column is fixedly installed on the outer wall of the upper surface of the shell, a top plate is fixedly connected to the top end of the support column, an upper mold base is fixedly installed on the lower surface of the top plate, a lower mold base is arranged below the upper mold base, a support rod is fixedly connected to the lower surface of the lower mold base, a movable plate is fixedly connected to the bottom end of the support rod, a speed reduction motor is fixedly installed on the outer wall of the shell, an output shaft is fixedly connected to the output end of the speed reduction motor, an incomplete gear is sleeved on the outer wall of the output shaft, a first gear is meshed with the outer wall of the incomplete gear, and a threaded rod is fixedly sleeved inside the first gear;

the water cooling device comprises a lower die holder, a water cooling tank, a first water inlet pipe, a first water outlet pipe, a first gear, a second gear, a deflection rod, a raised head, a movable frame, a piston, an injection tube and a water cooling tank, wherein the first water inlet pipe is fixedly connected to the left input end of the lower die holder, the water cooling tank is arranged in the lower die holder, the second water outlet pipe is fixedly connected to the left input end of the lower die holder, the mounting frame is fixedly mounted on the upper surface of a shell, the water cooling tank is fixedly mounted in the mounting frame, the cold discharge tank is fixedly mounted in the side wall of the mounting frame, the rotary shaft is rotatably connected to the inner wall of the shell, the second gear is fixedly sleeved on the outer wall of the rotary shaft and meshed with an incomplete gear, the deflection rod is fixedly connected to the other end of the rotary shaft, the raised head is fixedly mounted at the other end of the deflection rod, the raised head is slidably connected to the outer wall of the movable frame, the connecting rod is fixedly mounted at the other end of the piston, the injection tube is provided with the first water inlet pipe, the output end of the injection tube is fixedly connected with a first drainage tube.

Preferably, the threaded rod and the output shaft are rotatably connected with the inner wall of the shell, the top end of the threaded rod penetrates through and extends to the outside of the shell, and the outer wall of the threaded rod is in threaded connection with the moving plate.

Preferably, the upper surface of the lower die holder is provided with a die cavity, the water cooling tank is positioned at the bottom of the die cavity, and the second water inlet pipe and the second water discharge pipe are communicated with the water cooling tank.

Preferably, a fan is fixedly installed inside the mounting rack, and the fan is located on the left side of the cold row.

Preferably, the other end of the second water drainage pipe is connected with the input end of the cold water drainage pipe through a telescopic pipe, the output end of the cold water drainage pipe is connected with the input end of the water tank through a pipeline, the output end of the water tank is connected with the input end of the first water inlet pipe, and the output end of the first water drainage pipe is connected with the other end of the second water inlet pipe through a telescopic pipe.

Preferably, the top fixedly connected with blast pipe of water tank, the equal fixed mounting of outer wall of first inlet tube, first blast pipe has the check valve.

Preferably, the inner wall of the shell is fixedly provided with a sliding rod, the sliding rod is connected with the movable frame in a sliding mode, and the movable plate is connected with the support column in a sliding mode.

The beneficial effects of the utility model are that:

1. the utility model discloses in, the die holder is located the upper die base under, then inject in to the die cavity through the injection hole, after the injection is accomplished, start gear motor, gear motor drives the output shaft and rotates, the output shaft drives incomplete gear revolve, incomplete gear and second gear engagement, incomplete gear passes through the second gear and drives the pivot rotation, the pivot drives the plush copper through the deflection pole and removes, the plush copper passes through the connecting rod and drives the piston and remove, when the piston moves to the right, water in the water tank leads to pipe and gets into in the first inlet tube, in getting into the injection tube through first inlet tube, when the piston moves to the left, water in the injection tube is discharged through first drain tube, the exhaust water passes through in the second inlet tube gets into the water-cooling tank, carry out rapid cooling to the die cavity.

2. The utility model discloses in, in the high temperature liquid in the water-cooling tank simultaneously discharged into cold row through the second drain pipe, start the fan, use through the cooperation of fan and cold row and cool down high temperature liquid, the water after the cooling leads to pipe to enter into the water tank once more, is convenient for carry out cyclic utilization.

3. The utility model discloses in, when incomplete gear and first gear engagement, pivot stall, incomplete gear drive the threaded rod through first gear and rotate, and the threaded rod drives the movable plate downstream, and the movable plate passes through the bracing piece and drives the die holder downstream, makes die holder and upper die base separation to take out injection moulding's product from the die cavity, do not need additionally to add drive arrangement, reduce and cause the cost, and convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of a water-cooled mold for metal powder injection molding according to the present invention.

Fig. 2 is a schematic structural diagram of the incomplete gear, the first gear and the second gear of the water-cooled mold for metal powder injection molding according to the present invention.

Fig. 3 is a schematic structural diagram of the sleeve, the protruding head, the moving frame and the sliding rod of the water-cooled mold for metal powder injection molding according to the present invention.

Fig. 4 is a schematic partial structure diagram of a part a in fig. 1 of a water-cooled mold for metal powder injection molding according to the present invention.

Fig. 5 is a front view of the water-cooled mold for metal powder injection molding according to the present invention.

Reference numbers in the figures: 1. a housing; 2. a support pillar; 3. a top plate; 4. moving the plate; 5. a support bar; 6. a lower die holder; 7. an upper die holder; 8. a threaded rod; 9. a reduction motor; 10. a mounting frame; 11. a water tank; 12. a fan; 13. cold discharging; 14. an output shaft; 15. an incomplete gear; 16. A first gear; 17. a second gear; 18. a rotating shaft; 19. a deflection bar; 20. an injection tube; 21. A raised head; 22. moving the frame; 23. a slide bar; 24. a connecting rod; 25. a piston; 26. a first water inlet pipe; 27. a first drain pipe; 28. a water cooling tank; 29. a mold cavity; 30. a second water inlet pipe; 31. and a second water discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example (b):

as shown in figures 1 to 5:

a water-cooled mold for metal powder injection molding comprises a shell 1, wherein a support column 2 is fixedly installed on the outer wall of the upper surface of the shell 1, a top plate 3 is fixedly connected to the top end of the support column 2, an upper mold base 7 is fixedly installed on the lower surface of the top plate 3, a lower mold base 6 is arranged below the upper mold base 7, a support rod 5 is fixedly connected to the lower surface of the lower mold base 6, a movable plate 4 is fixedly connected to the bottom end of the support rod 5, a speed reducing motor 9 is fixedly installed on the outer wall of the shell 1, an output shaft 14 is fixedly connected to the output end of the speed reducing motor 9, an incomplete gear 15 is sleeved on the outer wall of the output shaft 14, a first gear 16 is meshed with the outer wall of the incomplete gear 15, and a threaded rod 8 is fixedly sleeved inside the first gear 16;

a second water inlet pipe 30 is fixedly connected to the left input end of the lower die holder 6, a water cooling tank 28 is arranged inside the lower die holder 6, a second water discharging pipe 31 is fixedly connected to the left input end of the lower die holder 6, an installation frame 10 is fixedly installed on the upper surface of the shell 1, a water tank 11 is fixedly installed inside the installation frame 10, a cold row 13 is fixedly installed on the side wall of the installation frame 10, a rotating shaft 18 is rotatably connected to the inner wall of the shell 1, a second gear 17 is fixedly sleeved on the outer wall of the rotating shaft 18, the second gear 17 is meshed with the incomplete gear 15, a deflection rod 19 is fixedly connected to the other end of the rotating shaft 18, a raised head 21 is fixedly installed at the other end of the deflection rod 19, a movable frame 22 is slidably connected to the outer wall of the raised head 21, a connecting rod 24 is fixedly installed on the side wall of the movable frame 22, a piston 25 is fixedly connected to the other end of the connecting rod 24, an injection tube 20 is arranged on the outer wall of the piston 25, and a first water inlet pipe 26 is fixedly connected to the input end of the injection tube 20, the output end of the syringe 20 is fixedly connected with a first drain pipe 27.

Threaded rod 8, output shaft 14 all are connected with the inner wall of shell 1 rotation, and the top of threaded rod 8 runs through and extends to the outside of shell 1, the outer wall and the 4 threaded connection of movable plate of threaded rod 8, and when threaded rod 8 rotated, threaded rod 8 can drive the vertical removal of movable plate 4.

Die cavity 29 has been seted up to the upper surface of die holder 6, and water-cooling tank 28 is located the bottom of die cavity 29, and second inlet tube 30, second drain pipe 31 all are linked together with water-cooling tank 28, and the inside fixed mounting of mounting bracket 10 has fan 12, and fan 12 is located the left side of cold row 13, through fan 12 and cold row 13's design, can cool down, make things convenient for water circulation to use exhaust high temperature liquid in the die holder 6.

The other end of the second water discharge pipe 31 is connected with the input end of the cold discharge pipe 13 through a telescopic pipe, the output end of the cold discharge pipe 13 is connected with the input end of the water tank 11 through a pipeline, the output end of the water tank 11 is connected with the input end of the first water inlet pipe 26, the output end of the first water discharge pipe 27 is connected with the other end of the second water inlet pipe 30 through a telescopic pipe, the top of the water tank 11 is fixedly connected with an exhaust pipe, the outer walls of the first water inlet pipe 26 and the first water discharge pipe 27 are fixedly provided with a one-way valve, when the piston 25 moves to the right, the water in the water tank 11 is introduced into the first inlet pipe 26 through the water pipe, when the piston 25 moves leftwards after entering the injection tube 20 through the first water inlet pipe 26, the water in the injection tube 20 is discharged through the first water outlet pipe 27, the sliding rod 23 is fixedly installed on the inner wall of the shell 1, the sliding rod 23 is slidably connected with the moving frame 22, and the moving plate 4 is slidably connected with the supporting column 2.

The specific use mode and function of the embodiment are as follows:

when the utility model is used, the lower die holder 6 is positioned under the upper die holder 7, then the injection is carried out to the die cavity 29 through the injection hole, after the injection is finished, the gear motor 9 is started, the gear motor 9 drives the output shaft 14 to rotate, the output shaft 14 drives the incomplete gear 15 to rotate, the incomplete gear 15 is meshed with the second gear 17, the incomplete gear 15 drives the rotating shaft 18 to rotate through the second gear 17, the rotating shaft 18 drives the raised head 21 to move through the deflection rod 19, the raised head 21 drives the piston 25 to move through the connecting rod 24, when the piston 25 moves to the right, the water in the water tank 11 is introduced into the first inlet pipe 26 through the water pipe, when the piston 25 moves leftwards after entering the injection tube 20 through the first water inlet pipe 26, water in the injection tube 20 is discharged through the first water discharge pipe 27, and the discharged water enters the water cooling tank 28 through the second water inlet pipe 30 to rapidly cool the die cavity 29;

meanwhile, high-temperature liquid in the water cooling tank 28 is discharged into the cold drain 13 through the second drain pipe 31, the fan 12 is started, the high-temperature liquid is cooled through the matching use of the fan 12 and the cold drain 13, and the cooled water enters the water tank 11 again through the water pipe, so that the water can be recycled;

when the incomplete gear 15 is meshed with the first gear 16, the rotating shaft 18 stops rotating, the incomplete gear 15 drives the threaded rod 8 to rotate through the first gear 16, the threaded rod 8 drives the moving plate 4 to move downwards, the moving plate 4 drives the lower die holder 6 to move downwards through the supporting rod 5, and the lower die holder 6 is separated from the upper die holder 7, so that an injection-molded product is taken out of the die cavity 29, and the use is convenient without additionally adding a driving device.

The above structure and process are shown in FIGS. 1-5.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a water-cooled mould of metal powder injection moulding, includes shell (1), its characterized in that, the upper surface outer wall fixed mounting of shell (1) has support column (2), the top fixedly connected with roof (3) of support column (2), the lower fixed surface of roof (3) installs upper die base (7), the below of upper die base (7) is provided with die holder (6), the lower fixed surface of die holder (6) is connected with bracing piece (5), the bottom fixedly connected with movable plate (4) of bracing piece (5), the outer wall fixed mounting of shell (1) has gear motor (9), the output fixedly connected with output shaft (14) of gear motor (9), the outer wall of output shaft (14) has cup jointed incomplete gear (15), the outer wall meshing of incomplete gear (15) has first gear (16), a threaded rod (8) is fixedly sleeved in the first gear (16);

the water cooling device is characterized in that a second water inlet pipe (30) is fixedly connected to the left input end of the lower die holder (6), a water cooling groove (28) is formed in the lower die holder (6), a second water discharging pipe (31) is fixedly connected to the left input end of the lower die holder (6), a mounting frame (10) is fixedly mounted on the upper surface of the shell (1), a water tank (11) is fixedly mounted in the mounting frame (10), a cold row (13) is fixedly mounted on the side wall of the mounting frame (10), a rotating shaft (18) is rotatably connected to the inner wall of the shell (1), a second gear (17) is fixedly sleeved on the outer wall of the rotating shaft (18), the second gear (17) is meshed with an incomplete gear (15), a deflection rod (19) is fixedly connected to the other end of the rotating shaft (18), a raised head (21) is fixedly mounted at the other end of the deflection rod (19), and a movable frame (22) is slidably connected to the outer wall of the raised head (21), the lateral wall fixed mounting who removes frame (22) has connecting rod (24), the other end fixedly connected with piston (25) of connecting rod (24), the outer wall of piston (25) is provided with injection tube (20), the first inlet tube of input fixedly connected with (26) of injection tube (20), the first drain pipe of output fixedly connected with (27) of injection tube (20).

2. The water-cooled mold for metal powder injection molding according to claim 1, wherein the threaded rod (8) and the output shaft (14) are rotatably connected with the inner wall of the housing (1), the top end of the threaded rod (8) penetrates through and extends to the outside of the housing (1), and the outer wall of the threaded rod (8) is in threaded connection with the moving plate (4).

3. The water-cooled mold for metal powder injection molding according to claim 1, wherein a mold cavity (29) is formed in the upper surface of the lower mold base (6), the water-cooled tank (28) is located at the bottom of the mold cavity (29), and the second water inlet pipe (30) and the second water outlet pipe (31) are both communicated with the water-cooled tank (28).

4. The water-cooled mold for metal powder injection molding according to claim 1, wherein a fan (12) is fixedly installed inside the mounting frame (10), and the fan (12) is located at the left side of the cold row (13).

5. The water-cooled mold for metal powder injection molding according to claim 1, wherein the other end of the second water discharging pipe (31) is connected with the input end of the cold row (13) through a telescopic pipe, the output end of the cold row (13) is connected with the input end of the water tank (11) through a pipe, the output end of the water tank (11) is connected with the input end of the first water inlet pipe (26), and the output end of the first water discharging pipe (27) is connected with the other end of the second water inlet pipe (30) through a telescopic pipe.

6. The water-cooled mold for metal powder injection molding according to claim 1, wherein an exhaust pipe is fixedly connected to the top of the water tank (11), and one-way valves are fixedly mounted on the outer walls of the first water inlet pipe (26) and the first water outlet pipe (27).

7. The water-cooled mold for metal powder injection molding according to claim 1, wherein a sliding rod (23) is fixedly installed on the inner wall of the housing (1), the sliding rod (23) is slidably connected with the moving frame (22), and the moving plate (4) is slidably connected with the supporting column (2).