Water-cooled mold for metal powder injection molding

Abstract

The utility model discloses a water-cooled mold for metal powder injection molding, which comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with a supporting seat, and the top of the supporting seat is fixedly connected with a lower mold seat. Water is injected into a spiral water passing round cavity through a water inlet pipe, cold water is introduced into a lower mold base through the spiral water passing round cavity for preheating, and preheated water enters a heat preservation pipe through a first water drainage pipe and enters a communicating water cavity through a water passing pipe for mold cooling treatment; cooling water in the communicating water cavity is led into the centralized cooling cavity through the vertical water passing round cavities, and water cooling treatment is conducted on a workpiece in the lower die base.

Description

Technical Field

[0001] The utility model relates to the technical field of water-cooled molds, in particular to a water-cooled mold for metal powder injection molding. Background Technique

[0002] Metal injection molding is a molding method that injects a plastic mixture of metal powder and its binder into a mold. First, the selected powder and binder are mixed, and then the mixture is granulated and injected into the required shape. The polymer imparts its viscous flow characteristics to the mixture, which helps with forming, cavity filling, and uniform powder filling. After forming, the binder is removed, and then the debound blank is sintered. The forming mold is particularly crucial in metal injection molding. In a general casting mold, the casting liquid is poured into the mold, and then the product is taken out after the liquid slowly cools and forms. However, the cooling channels provided in the mold itself are relatively simple, and the cooling effect on the materials in the mold is not good enough. The temperature difference between water and the workpiece is relatively large, and it is easy to cause uneven water cooling. Content of the Utility Model

[0003] The purpose of the utility model is to provide a water-cooled mold for metal powder injection molding to solve the problems in the above background technique that the cooling channels provided in the mold itself are relatively simple, the cooling effect on the materials in the mold is not good enough, the temperature difference between water and the workpiece is relatively large, and it is easy to cause uneven water cooling.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A water-cooled mold for metal powder injection molding, including a support bottom plate, a support seat is fixedly connected to the top of the support bottom plate, a lower mold base is fixedly connected to the top of the support seat, a spiral water passage circular cavity is opened inside the lower mold base, a water inlet pipe is fixedly connected to one side of the lower mold base, one end of the water inlet pipe is communicated with the spiral water passage circular cavity, a first drain pipe is fixedly connected to one side of the lower mold base, one end of the first drain pipe is communicated with the spiral water passage circular cavity, a heat preservation pipe is fixedly connected to one end of the first drain pipe, a water passage pipe is opened at the bottom of the lower mold base, the other end of the heat preservation pipe is fixedly connected to the water passage pipe, a communicating water cavity is opened inside the lower mold base, the water passage pipe is communicated with the communicating water cavity, a centralized cooling cavity is opened inside the lower mold base, vertical water passage circular cavities are equidistantly opened at the bottom of the centralized cooling cavity, the vertical water passage circular cavities are communicated with the communicating water cavity, and a second drain pipe is fixedly connected inside the lower mold base, and one end of the second drain pipe is communicated with the centralized cooling cavity.

[0005] As a preferred solution of the utility model: A first support frame is fixedly connected to the top of the support bottom plate, a second sliding plate is slidably connected to the inside of the first support frame, and an upper mold base cooperating with the lower mold base is fixedly connected to the bottom of the second sliding plate.

[0006] As a preferred embodiment of the present utility model: a feed pipe is fixedly connected to the top of the upper die base.

[0007] As a preferred embodiment of the present utility model: a second support frame is fixedly connected to the top of the first support frame. An adjusting screw rod is rotatably connected inside the second support frame. One end of the adjusting screw rod is rotatably connected to the first support frame. A first sliding plate is threadedly connected to the outer side of the adjusting screw rod. The first sliding plate is slidably connected to the second support frame. Adjusting sliding plates are symmetrically and fixedly connected to the bottom of the first sliding plate. The adjusting sliding plates are fixedly connected to the second sliding plate.

[0008] As a preferred embodiment of the present utility model: a motor is installed on the top of the second support frame. The output end of the motor is fixedly connected to the adjusting screw rod.

[0009] As a preferred embodiment of the present utility model: a control panel is installed on one side of the first support frame. The motor is electrically connected to the control panel.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: by providing a spiral water passage cavity, a water inlet pipe and a first drain pipe, water is injected into the spiral water passage cavity through the water inlet pipe. Cold water passes through the spiral water passage cavity to preheat the lower die base with cold water. The preheated water enters the heat preservation pipe through the first drain pipe and enters the communicating water cavity through the water pipe for mold cooling treatment. By providing a vertical water passage cavity and a centralized cooling cavity, the cooling water in the communicating water cavity is introduced into the centralized cooling cavity through each vertical water passage cavity to perform water cooling treatment on the workpiece in the lower die base. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the internal structure of the present utility model;

[0012] Figure 2 is a schematic diagram of the overall structure of the spiral water passage cavity of the present utility model;

[0013] Figure 3 is a top view of the centralized cooling cavity of the present utility model;

[0014] Figure 4 is a top view of the vertical water passage cavity of the present utility model.

[0015] In the figure: 1. Support base plate; 2. First support frame; 3. Second support frame; 4. First sliding plate; 5. Adjusting screw rod; 6. Motor; 7. Adjusting sliding plate; 8. Second sliding plate; 9. Control panel; 10. Upper die holder; 11. Lower die holder; 12. Heat preservation pipe; 13. First drain pipe; 14. Spiral water passing circular cavity; 15. Water inlet pipe; 16. Water passing pipe; 17. Connecting water cavity; 18. Vertical water passing circular cavity; 19. Central cooling cavity; 20. Second drain pipe; 21. Support seat; 22. Feed pipe. Specific implementation mode

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figures 1 to 4 , the present invention provides a technical solution: a water-cooled mold for metal powder injection molding, including a support base plate 1, a support seat 21 is fixedly connected to the top of the support base plate 1, a lower die holder 11 is fixedly connected to the top of the support seat 21, a spiral water passing circular cavity 14 is opened inside the lower die holder 11, a water inlet pipe 15 is fixedly connected to one side of the lower die holder 11, one end of the water inlet pipe 15 is communicated with the spiral water passing circular cavity 14, a first drain pipe 13 is fixedly connected to one side of the lower die holder 11, one end of the first drain pipe 13 is communicated with the spiral water passing circular cavity 14, a heat preservation pipe 12 is fixedly connected to one end of the first drain pipe 13, a water passing pipe 16 is opened at the bottom of the lower die holder 11, and the other end of the heat preservation pipe 12 is fixedly connected to the water passing pipe 16. A connecting water cavity 17 is opened inside the lower die holder 11, and the water passing pipe 16 is communicated with the connecting water cavity 17. A central cooling cavity 19 is opened inside the lower die holder 11. Vertical water passing circular cavities 18 are equidistantly opened at the bottom of the central cooling cavity 19, and the vertical water passing circular cavities 18 are communicated with the connecting water cavity 17. A second drain pipe 20 is fixedly connected inside the lower die holder 11, and one end of the second drain pipe 20 is communicated with the central cooling cavity 19. When cooling, cooling water is introduced through the water inlet pipe 15, and the water inlet pipe 15 enters the cooling water into the spiral water passing circular cavity 14 for preheating and temperature reduction, and enters the central cooling cavity 19 through the respective vertical water passing circular cavities 18 at the top of the connecting water cavity 17 to cool the materials inside the lower die holder 11, and then is discharged through the second drain pipe 20.

[0018] Among them, a first support frame 2 is fixedly connected to the top of the support base plate 1, a second sliding plate 8 is slidably connected inside the first support frame 2, and an upper die holder 10 that cooperates with the lower die holder 11 is fixedly connected to the bottom of the second sliding plate 8.

[0019] Among them, a feed pipe 22 is fixedly connected to the top of the upper die holder 10.

[0020] Among them, a second support frame 3 is fixedly connected to the top of the first support frame 2. A regulating lead screw 5 is rotatably connected inside the second support frame 3. One end of the regulating lead screw 5 is rotatably connected to the first support frame 2. A first sliding plate 4 is threadedly connected to the outside of the regulating lead screw 5. The first sliding plate 4 is slidably connected to the second support frame 3. Adjusting sliding plates 7 are symmetrically and fixedly connected to the bottom of the first sliding plate 4. The adjusting sliding plates 7 are fixedly connected to the second sliding plate 8. The output end of the motor 6 drives the regulating lead screw 5 to rotate. When the regulating lead screw 5 rotates, it drives the first sliding plate 4 on the outside to move and adjust. The first sliding plate 4 drives the adjusting sliding plates 7 and the second sliding plate 8 at the bottom to move. The second sliding plate 8 drives the upper die holder 10 to move downward, and the upper die holder 10 and the lower die holder 11 are combined.

[0021] Among them, a motor 6 is installed on the top of the second support frame 3. The output end of the motor 6 is fixedly connected to the regulating lead screw 5. The output end of the motor 6 is used to drive the regulating lead screw 3 to rotate and adjust.

[0022] Among them, a control panel 9 is installed on one side of the first support frame 2. The motor 6 is electrically connected to the control panel 9. The control panel 9 is used to control the motor 6, improving the safety of the device during operation and the working efficiency of the device.

[0023] Specifically, during use, power is supplied through an external power source. The motor 6 is started through the control panel 9. The output end of the motor 6 drives the regulating lead screw 5 to rotate. When the regulating lead screw 5 rotates, it drives the first sliding plate 4 on the outside to move and adjust. The first sliding plate 4 drives the adjusting sliding plates 7 and the second sliding plate 8 at the bottom to move. The second sliding plate 8 drives the upper die holder 10 to move downward, and the upper die holder 10 and the lower die holder 11 are combined. Feeding is carried out through the feed pipe 22. When cooling, cooling water is introduced through the water inlet pipe 15. The water inlet pipe 15 allows the cooling water to enter the spiral water passage cavity 14 for preheating and cooling. It enters the first drain pipe 13 through the spiral water passage cavity 14. The first drain pipe 13 transports the preheated cooling water to the water pipe 16 through the heat preservation pipe 12. It enters the communicating water cavity 17 through the water pipe 16. It enters the centralized cooling cavity 19 through the vertical water passage cavities 18 at the top of the communicating water cavity 17 to cool the materials in the lower die holder 11, and then is discharged through the second drain pipe 20.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A water-cooled mold for metal powder injection molding, comprising a support bottom plate (1), characterized in that, A support base plate (1) has a support seat (21) fixedly connected to its top. The support seat (21) has a lower die base (11) fixedly connected to its top. A spiral water - passing circular cavity (14) is formed inside the lower die base (11). A water inlet pipe (15) is fixedly connected to one side of the lower die base (11). One end of the water inlet pipe (15) is communicated with the spiral water - passing circular cavity (14). A first drain pipe (13) is fixedly connected to one side of the lower die base (11). One end of the first drain pipe (13) is communicated with the spiral water - passing circular cavity (14). A heat - preservation pipe (12) is fixedly connected to one end of the first drain pipe (13). A water - passing pipe (16) is formed at the bottom of the lower die base (11). The other end of the heat - preservation pipe (12) is fixedly connected to the water - passing pipe (16). A communicating water cavity (17) is formed inside the lower die base (11). The water - passing pipe (16) is communicated with the communicating water cavity (17). A centralized cooling cavity (19) is formed inside the lower die base (11). Vertically - arranged water - passing circular cavities (18) are equidistantly formed at the bottom of the centralized cooling cavity (19). The vertically - arranged water - passing circular cavities (18) are communicated with the communicating water cavity (17). A second drain pipe (20) is fixedly connected inside the lower die base (11). One end of the second drain pipe (20) is communicated with the centralized cooling cavity (19).

2. The water-cooled mold for metal powder injection molding according to claim 1, wherein: A first support frame (2) is fixedly connected to the top of the support base plate (1). A second sliding plate (8) is slidably connected to the inner side of the first support frame (2). An upper die base (10) that cooperates with the lower die base (11) is fixedly connected to the bottom of the second sliding plate (8).

3. The water-cooled mold for metal powder injection molding according to claim 2, characterized in that: A feed pipe (22) is fixedly connected to the top of the upper die base (10).

4. The water-cooled mold for metal powder injection molding according to claim 2, characterized in that: A second support frame (3) is fixedly connected to the top of the first support frame (2). An adjusting screw rod (5) is rotatably connected inside the second support frame (3). One end of the adjusting screw rod (5) is rotatably connected to the first support frame (2). A first sliding plate (4) is threadedly connected to the outer side of the adjusting screw rod (5). The first sliding plate (4) is slidably connected to the second support frame (3). Adjusting sliding plates (7) are symmetrically fixedly connected to the bottom of the first sliding plate (4). The adjusting sliding plates (7) are fixedly connected to the second sliding plate (8).

5. The water-cooled mold for metal powder injection molding according to claim 4, characterized in that: A motor (6) is installed at the top of the second support frame (3). The output end of the motor (6) is fixedly connected to the adjusting screw rod (5).

6. The water-cooled mold for metal powder injection molding according to claim 5, wherein: A control panel (9) is installed on one side of the first support frame (2). The motor (6) is electrically connected to the control panel (9).

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