Powder metallurgy injection molding negative pressure mold

Abstract

The utility model relates to a powder metallurgy injection molding negative pressure mold in the technical field of negative pressure molds, a mold device comprises a lower mold arranged above a base, and an upper mold used for being matched with the lower mold to conduct powder compression molding is arranged above the lower mold; the overturning device comprises a driving assembly which is arranged in the base and used for rotating, and an adjusting assembly used for driving the lower mold to topple is arranged in the driving assembly. Firstly, a second motor drives a second threaded rod to rotate, a movable plate moves leftwards along a rod body of the second threaded rod, then a lower mold can be toppled under the action of a hinge plate, then high-pressure water guns placed on two fixing rings are taken down, control switches on the high-pressure water guns are turned on, and the lower mold is turned off. And flushing water in the water tank flows along the high-pressure water gun of the water pipe tank, so that residual powder in the lower mold can be flushed, and the residual powder in the lower mold is prevented from influencing next use.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure molds, in particular to a negative pressure mold for powder metallurgy injection molding. Background Technique

[0002] An injection mold refers to a mold in which plastic is heated and melted in the heating barrel of an injection machine, pushed by a screw or a plunger, enters the mold cavity through the nozzle and the gating system of the mold, and the plastic hardens and sets in the cavity; after demolding the negative pressure mold, a high-pressure water gun is required to remove the residual powder in the mold cleanly, so as to facilitate the next operation of the negative pressure mold. For example, as shown in a negative pressure mold for powder metallurgy injection molding with the Chinese patent application number CN202121261564.2, by manually opening the valve and turning on the high-pressure pump switch, the high-pressure pump works to pump the water in the water tank into the catheter. The nozzle is used to spray high-pressure water, and the handle facilitates the staff to hold the catheter and align it with the inner cavity of the mold for flushing.

[0003] However, since the high-pressure pump is used to flush and remove the residual powder on the inner cavity of the mold, the flushing water and the residual powder will stay in the negative pressure mold, and it is necessary to manually clean the flushing water and the residual powder out of the negative pressure mold. This process is time-consuming and laborious, and it is not convenient to quickly drain the flushing water in the negative pressure mold. Summary of the Utility Model

[0004] To solve the problem proposed in the above background technique that since the high-pressure pump is used to flush and remove the residual powder on the inner cavity of the mold, the flushing water and the residual powder will stay in the negative pressure mold, and it is necessary to manually clean the flushing water and the residual powder out of the negative pressure mold. This process is time-consuming and laborious, and it is not convenient to quickly drain the flushing water in the negative pressure mold, the utility model provides the following technical solutions:

[0005] A negative pressure mold for powder metallurgy injection molding, including a base, a mold device for molding is provided above the base, a mold opening device for driving the mold device to move up and down is arranged at the top of the base, a cleaning device for cleaning the residual dust in the mold device is arranged at the top of the base, and a turning device for pouring the cleaning water in the mold device is arranged in the base.

[0006] The mold device includes a lower mold arranged above the base, and an upper mold for cooperating with the lower mold to press and mold the powder is arranged above the lower mold.

[0007] The turning device includes a driving component arranged in the base for rotation, and an adjusting component for driving the lower mold to tilt is arranged in the driving component.

[0008] Furthermore, a fixing plate for movably connecting with the lower mold is fixedly installed at the top end of the base, and a hinge block for hingedly connecting with the adjusting component is fixedly installed at the bottom end of the lower mold.

[0009] Furthermore, the driving component includes a second threaded rod arranged in the base for rotation, and a second motor for driving the rotation of the second threaded rod is fixedly installed at the right end of the second threaded rod.

[0010] Furthermore, the adjusting component includes a moving plate threadedly connected with the second threaded rod, and a hinge plate for movably connecting with the hinge block is hingedly installed at the top end of the moving plate.

[0011] Furthermore, the mold opening device includes fixing columns fixedly installed at the top end of the base, and there are two fixing columns. A first threaded rod for rotation is arranged in the left fixing column, and a threaded sleeve plate for moving up and down is threadedly connected to the rod body of the first threaded rod, and the threaded sleeve plate is connected to the upper mold.

[0012] Furthermore, a first motor for driving the rotation of the first threaded rod is fixedly installed at the top end of the first threaded rod, and a guide rod for guiding the upper mold is arranged in the right fixing column.

[0013] Furthermore, the cleaning device includes a water tank fixedly installed at the top end of the base, and a water injection pipe for adding flushing water into the water tank is arranged at the top end of the water tank.

[0014] Furthermore, a water pipe for extracting the cleaning water in the water tank is arranged at the front side of the water tank, the water pipe is communicated with a high-pressure water gun for extracting the flushing water in the water tank, and a fixing ring for supporting the high-pressure water gun is fixedly installed at the front end of the right fixing column.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By providing the cleaning device and the flipping device, when it is necessary to flush the residual powder in the lower mold, the second motor can be first used to drive the second threaded rod to rotate, so that the moving plate moves leftward along the rod body of the second threaded rod. Then, under the action of the hinge plate, the lower mold can be tilted. Then, the high-pressure water gun placed on the two fixing rings can be removed, and then the control switch on the high-pressure water gun can be turned on, and the flushing water in the water tank can flow into the high-pressure water gun along the water pipe, so as to flush the residual powder in the lower mold to prevent the residual powder in the lower mold from affecting the next use. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the whole of the present utility model;

[0018] Figure 2Schematic structural diagram of the left rear view mold device of the present utility model;

[0019] Figure 3 Left rear view of the present utility model;

[0020] Figure 4 Schematic structural diagram of the cleaning device of the present utility model;

[0021] Figure 5 Cross-sectional view of the base of the present utility model;

[0022] Figure 6 Schematic structural diagram of the flipping device of the present utility model.

[0023] In the attached drawings, the list of component names represented by each reference numeral is as follows:

[0024] 100 - Base;

[0025] 200 - Mold device, 210 - Upper mold, 220 - Lower mold, 221 - Hinge block, 230 - Fixed plate;

[0026] 300 - Mold opening device, 310 - Motor 1, 320 - Threaded rod 1, 330 - Threaded sleeve plate, 340 - Fixed column, 350 - Guide rod;

[0027] 400 - Cleaning device, 410 - Water tank, 420 - Water injection pipe, 430 - Water pipe, 440 - High - pressure water gun, 450 - Fixed ring;

[0028] 500 - Flipping device, 510 - Driving component, 511 - Motor 2, 512 - Threaded rod 2, 520 - Adjusting component, 521 - Moving plate, 522 - Hinge plate. Detailed implementation manners

[0029] The following describes in detail the preferred specific implementation manners for implementing the present utility model, and a clear and complete description is made in combination with the attached drawings.

[0030] Please refer to Figures 1 - 6 , the present utility model provides a negative - pressure mold for powder - metallurgy injection molding,

[0031] which includes a base 100. Above the base 100, there is a mold device 200 for molding. At the top of the base 100, there is a mold - opening device 300 for driving the mold device 200 to move up and down. At the top of the base 100, there is a cleaning device 400 for cleaning the residual dust in the mold device 200. Inside the base 100, there is a flipping device 500 for pouring the cleaning water in the mold device 200.

[0032] The mold device 200 includes a lower mold 220 disposed above the base 100, and an upper mold 210 is disposed above the lower mold 220 for cooperating with the lower mold 220 to press and mold powder. A fixing plate 230 for movably connecting with the lower mold 220 is fixedly installed at the top end of the base 100, and there are two fixing plates 230. The two fixing plates 230 are connected to the lower mold 220 through a rotating shaft to facilitate the rotation of the lower mold 220, so that the flushing water in the mold 220 can be poured out and removed.

[0033] Two hinge blocks 221 for hingedly connecting with the adjusting assembly 520 are fixedly installed at the bottom end of the lower mold 220, and there are two hinge blocks 221. The two hinge blocks 221 are symmetrically welded to the bottom end of the lower mold 220 in the front and back.

[0034] The mold opening device 300 includes two fixed columns 340 fixedly installed at the top end of the base 100. The two fixed columns 340 are symmetrically welded to the top end of the base 100 in the front and back. A first threaded rod 320 for rotation is disposed inside the left fixed column 340. The upper and lower ends of the first threaded rod 320 are connected to the column cavity of the left fixed column 340 through bearings to facilitate the rotation of the first threaded rod 320. A threaded sleeve plate 330 for moving up and down is threadedly connected to the rod body of the first threaded rod 320, and the threaded sleeve plate 330 is connected to the upper mold 210.

[0035] A first motor 310 for driving the rotation of the first threaded rod 320 is fixedly installed at the top end of the first threaded rod 320. A guide rod 350 for guiding the upper mold 210 is disposed inside the right fixed column 340. Thus, when it is necessary to demold the parts in the lower mold 220, the first motor 310 can be used to rotate the first threaded rod 320, which can drive the threaded sleeve plate 330 to move upward along the first threaded rod 320, and then the upward movement of the upper mold 210 can be controlled, and the parts in the lower mold 220 can be taken out.

[0036] The cleaning device 400 includes a water tank 410 fixedly installed at the top of the base 100. A water injection pipe 420 for adding flushing water into the water tank 410 is arranged at the top of the water tank 410. When the cleaning water in the water tank 410 is too little, flushing water can be added into the water tank 410 through the water injection pipe 420 to ensure that the flushing water in the water tank 410 is always full. A water pipe 430 for pumping the cleaning water in the water tank 410 is arranged at the front side of the water tank 410. The other end of the water pipe 430 is provided with a high-pressure water gun 440 for pumping the flushing water in the water tank 410. At the front end of the right fixing column 340, a fixing ring 450 for supporting the high-pressure water gun 440 is fixedly installed, and there are two fixing rings 450. The two fixing rings 450 are welded in a linear array at the front end of the right fixing column 340. Thus, when it is necessary to flush the residual powder in the lower die 220, the high-pressure water gun 440 placed on the two fixing rings 450 can be removed, and then the control switch on the high-pressure water gun 440 is turned on. The flushing water in the water tank 410 flows along the water pipe 430 to the high-pressure water gun 440, and the residual powder in the lower die 220 can be flushed to prevent the residual powder in the lower die 220 from affecting the next use.

[0037] The flipping device 500 includes a driving component 510 for rotation arranged in the base 100, and an adjusting component 520 for driving the lower die 220 to tilt is arranged in the driving component 510.

[0038] The driving component 510 includes a second threaded rod 512 for rotation arranged in the base 100, and the left and right ends of the second threaded rod 512 are connected to the seat body of the base 100 through bearings to facilitate the rotation of the second threaded rod 512. A second motor 511 for driving the second threaded rod 512 to rotate is fixedly installed at the right end of the second threaded rod 512.

[0039] The adjusting component 520 includes a moving plate 521 threadedly connected to the second threaded rod 512. A hinge plate 522 for movably connecting with the hinge block 221 is hinged at the top of the moving plate 521. Thus, when it is necessary to flush the residual powder in the lower die 220, the second threaded rod 512 can be driven to rotate by the second motor 511 first, so that the moving plate 521 moves leftward along the rod body of the second threaded rod 512. Then, under the action of the hinge plate 522, the lower die 220 can be tilted. Then, the high-pressure water gun 440 placed on the two fixing rings 450 can be removed, and then the control switch on the high-pressure water gun 440 is turned on. The flushing water in the water tank 410 flows along the water pipe 430 to the high-pressure water gun 440, and the residual powder in the lower die 220 can be flushed to prevent the residual powder in the lower die 220 from affecting the next use.

[0040] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the present utility model. In addition, any non-creative modifications made to the present utility model by those skilled in the art without creative efforts still fall within the protection scope of the present utility model.

Claims

1. A powder metallurgy injection molding negative pressure mold, comprising a base (100), characterized in that: A mold device (200) for molding is provided above the base (100); a mold opening device (300) for driving the mold device (200) to move up and down is provided at the top of the base (100); a cleaning device (400) for cleaning dust remaining in the mold device (200) is provided at the top of the base (100); and a turning device (500) for dumping cleaning water in the mold device (200) is provided in the base (100); The mold device (200) comprises a lower mold (220) arranged above the base (100), and an upper mold (210) is arranged above the lower mold (220) for cooperating with the lower mold (220) to perform powder compression molding; The turning device (500) comprises a driving assembly (510) arranged in the base (100) for rotation, and an adjusting assembly (520) for driving the lower mold (220) to tilt is arranged in the driving assembly (510).

2. A powder metallurgy injection molding negative pressure mold according to claim 1, characterized in that: A fixing plate (230) for being movably connected to the lower mold (220) is fixedly installed on the top end of the base (100), and a hinge block (221) for being hinged to the adjustment component (520) is fixedly installed on the bottom end of the lower mold (220).

3. A powder metallurgy injection molding negative pressure mold according to claim 2, characterized in that: The driving assembly (510) comprises a second threaded rod (512) arranged in the base (100) for rotation, and a second motor (511) for driving the second threaded rod (512) to rotate is fixedly mounted on the right end of the second threaded rod (512).

4. A powder metallurgy injection molding negative pressure mold according to claim 3, characterized in that: The adjustment assembly (520) comprises a movable plate (521) threadedly connected to the second threaded rod (512), and a hinge plate (522) is hingedly connected at the top end of the movable plate (521) for being movably connected to the hinge block (221).

5. The powder metallurgy injection molding negative pressure mold according to claim 1, characterized in that: The mold opening device (300) includes a fixed column (340) fixedly mounted on the top of the base (100), and there are two fixed columns (340). A threaded rod (320) for rotation is arranged in the left fixed column (340), and a threaded sleeve (330) for up and down movement is threadedly connected to the rod body of the threaded rod (320), and the threaded sleeve (330) is connected to the upper mold (210).

6. A powder metallurgy injection molding negative pressure mold according to claim 5, characterized in that: A motor (310) for driving the threaded rod (320) to rotate is fixedly installed at the top end of the threaded rod (320), and a guide rod (350) for guiding the upper mold (210) is arranged in the fixed column (340) on the right side.

7. The powder metallurgy injection molding negative pressure mold according to claim 5, characterized in that: The cleaning device (400) comprises a water tank (410) fixedly mounted on the top of the base (100), and a water injection pipe (420) for adding flushing water into the water tank (410) is provided at the top of the water tank (410).

8. The powder metallurgy injection molding negative pressure mold according to claim 7, characterized in that: A water pipe (430) for extracting cleaning water from the water tank (410) is provided at the front side of the water tank (410); a high-pressure water gun (440) for extracting flushing water from the water tank (410) is connected to the water pipe (430); a fixing ring (450) for supporting the high-pressure water gun (440) is fixedly mounted at the front end of the fixing column (340) on the right side.

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