Closed packaging structure for metal injection molding

Abstract

The utility model relates to the technical field of metal injection devices, and discloses a sealed packaging structure for metal injection molding, which comprises a shell, a main pipe, a branch pipe and an injection pipe respectively penetrate through the outer wall of the shell, a first motor is fixedly assembled on the outer wall of the shell, a first lead screw is fixedly assembled on an output shaft of the first motor, and a second lead screw is fixedly assembled on the output shaft of the second motor. The outer wall of the first lead screw is in threaded connection with a piston, a movable groove is formed in the middle of the shell, and the inner wall of the movable groove is rotationally connected with a second lead screw. Through the arrangement of the shell, the main pipe, the branch pipe, the injection pipe, the weighing hopper, the weighing spring and the electromagnetic valve, in the operation process of the device, a user can directly put main materials and auxiliary materials into the main pipe and the branch pipe respectively, so that the weighing hopper presses the weighing spring through containing of the weighing hopper and closing of the electromagnetic valve, and the weighing effect is achieved; and the material proportioning precision of a user is further improved.

Description

Technical Field

[0001] This utility model relates to the field of metal injection device technology, specifically a sealed packaging structure for metal injection molding. Background Technology

[0002] The selected powder is first mixed with a binder, then the mixture is granulated and injected into the required shape. This type of process is called metal injection molding, and a sealing and encapsulation device is required to complete this operation.

[0003] While existing injection molding devices can inject metal powder, they lack a weighing mechanism for the powder. Therefore, users must manually add the binder and powder according to their experience, reducing the accuracy of the powder mixing. Furthermore, the lack of a stirring mechanism for the metal powder further diminishes the injection effect. To address this, we propose a sealed encapsulation structure for metal injection molding. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a sealed packaging structure for metal injection molding, which has the advantages of high weighing and proportioning accuracy, high automation, and good injection effect, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a sealed packaging structure for metal injection molding, comprising a shell, a main pipe, a branch pipe, and an injection tube passing through the outer wall of the shell, a motor fixedly mounted on the outer wall of the shell, a lead screw fixedly mounted on the output shaft of the motor, a piston threadedly connected to the outer wall of the lead screw, a movable groove formed in the middle of the shell, a second lead screw rotatably connected to the inner wall of the movable groove, a movable ring threadedly connected to the outer wall of the second lead screw, a connecting rod fixedly mounted on the outer wall of the movable ring, and a movable frame fixedly mounted at the end of the connecting rod. The shell and the movable ring... Motor 2 is fixedly mounted on the outer wall of the moving frame. A gear is fixedly mounted on the output shaft of motor 2. A gear ring meshes with the outer wall of the gear. A stirring rod is fixedly mounted on the outer wall of the gear ring. An installation groove is opened on the inner wall of the main pipe. A straight rod is fixedly mounted on the inner wall of the installation groove. A weighing spring is sleeved on the outer wall of the straight rod. The top of the weighing spring abuts against a weighing hopper. A solenoid valve is provided on the inner wall of the weighing hopper. A guide pipe is fixedly mounted on the bottom of the weighing hopper. A turntable is rotatably connected to the inner wall of the shell. A sliding hole is opened on the outer wall of the turntable. A controller is fixedly mounted on the outer wall of the shell.

[0006] As a preferred technical solution of this utility model: the inner wall of the sliding hole is slidably connected to the outer wall of the stirring rod, and there are several stirring rods, all of which are evenly distributed along the outer wall of the toothed ring.

[0007] As a preferred technical solution of this utility model: the outer wall of the weighing hopper is slidably connected to the inner wall of the main pipe, and the internal structure of the main pipe and the branch pipe is the same. The end of the second lead screw near the toothed ring is fixedly assembled with the output shaft of a second motor, and the inner wall of the moving frame is slidably connected to the outer wall of the second motor at that location.

[0008] As a preferred technical solution of this utility model: the outer wall of the piston is tightly fitted with the inner wall of the housing, and the outer wall of the gear is rotatably connected to the outer wall of the gear ring.

[0009] As a preferred technical solution of this utility model: the controller is electrically connected to the solenoid valve, and the outer wall of the feed tube is slidably connected to the inner wall of the main tube.

[0010] As a preferred technical solution of this utility model: when the outer wall of the moving ring overlaps with the inner wall of the movable groove near the toothed ring, the inner wall of the sliding hole and the outer wall of the stirring rod are on the same horizontal plane, and at this time the interior of the shell is isolated from the outside through the stirring rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The sealed encapsulation structure for metal injection molding, through the structure of shell, main pipe, branch pipe, injection pipe, weighing hopper, weighing spring, and solenoid valve, allows the user to directly put the main material and auxiliary material into the main pipe and branch pipe respectively during operation. The weighing hopper and the closing of the solenoid valve cause the weighing spring to be compressed by the weighing hopper, thereby achieving the weighing effect and improving the user's accuracy in material proportioning.

[0013] 2. The sealed encapsulation structure for metal injection molding, through the setting of a moving ring, connecting rod, movable groove, guide tube, lead screw, and stirring rod, allows the user to move the stirring rod to contact the material after the device completes the weighing and discharging operations. Then, the user can use one motor to move the stirring rod to contact the material, and use another motor to make the stirring rod and turntable rotate synchronously, thereby achieving the effect of mixing the metal powder and auxiliary materials, thus improving the injection effect of the device on metal powder. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a side sectional view of the present invention.

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Shell; 2. Main pipe; 3. Branch pipe; 4. Motor 1; 5. Moving frame; 6. Motor 2; 7. Injection tube; 8. Stirring rod; 9. Turntable; 10. Weighing hopper; 11. Gear ring; 12. Gear; 13. Lead screw 1; 14. Piston; 15. Lead screw 2; 16. Moving ring; 17. Connecting rod; 18. Movable groove; 19. Guide pipe; 20. Solenoid valve; 21. Mounting groove; 22. Straight rod; 23. Weighing spring; 24. Sliding hole; 25. Controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 A sealed encapsulation structure for metal injection molding includes a housing 1. A main pipe 2, a branch pipe 3, and an injection tube 7 pass through the outer wall of the housing 1. A motor 4 is fixedly mounted on the outer wall of the housing 1. A lead screw 13 is fixedly mounted on the output shaft of the motor 4. A piston 14 is threadedly connected to the outer wall of the lead screw 13. A movable groove 18 is formed in the middle of the housing 1. A second lead screw 15 is rotatably connected to the inner wall of the movable groove 18. A moving ring 16 is threadedly connected to the outer wall of the second lead screw 15. A connecting rod 17 is fixedly mounted on the outer wall of the moving ring 16. A movable frame 5 is fixedly mounted at the end of the connecting rod 17. The outer walls of both the housing 1 and the movable frame 5 are fixed. The system is equipped with a second motor 6. The output shaft of the second motor 6 is fixedly fitted with a gear 12. The outer wall of the gear 12 is meshed with a gear ring 11. The outer wall of the gear ring 11 is fixedly fitted with a stirring rod 8. The inner wall of the main pipe 2 has an installation groove 21. The inner wall of the installation groove 21 is fixedly fitted with a straight rod 22. The outer wall of the straight rod 22 is sleeved with a weighing spring 23. The top of the weighing spring 23 abuts against a weighing hopper 10. The inner wall of the weighing hopper 10 is equipped with a solenoid valve 20. The bottom of the weighing hopper 10 is fixedly fitted with a guide pipe 19. The inner wall of the housing 1 is rotatably connected to a turntable 9. The outer wall of the turntable 9 has a sliding hole 24. The outer wall of the housing 1 is fixedly fitted with a controller 25.

[0021] In the above structure, the housing 1, main pipe 2, branch pipe 3, weighing hopper 10, guide pipe 19, solenoid valve 20, mounting groove 21, straight rod 22, weighing spring 23, and controller 25 are designed so that during use, the user can put the main metal material and auxiliary material into the main pipe 2 and branch pipe 3 respectively, so that the weighing hopper 10 can collect the material for weighing, thereby achieving the effect of accurate proportioning of main material and auxiliary material, and thus improving the user's accuracy in material proportioning.

[0022] In a preferred embodiment: the inner wall of the sliding hole 24 is slidably connected to the outer wall of the stirring rod 8, and there are several stirring rods 8, all of which are evenly distributed along the outer wall of the toothed ring 11.

[0023] In the above structure, the stirring rod 8 and the sliding hole 24 allow the user to rotate the lead screw 15 by operating the motor 6 after weighing, thereby moving the moving ring 16 towards the main pipe 2. This allows the stirring rod 8 to extend into the housing 1 and contact the main material and auxiliary material respectively. Combined with the rotatable characteristic of the turntable 9, the stirring rod 8 can stir both materials, thus improving the injection effect of the structure on metal powder. Conversely, after the stirring rod 8 returns to its original position, it seals the sliding hole 24, thereby preventing leakage when the material is discharged to the outside of the weighing hopper 10 after weighing, thus improving the sealing performance of the device.

[0024] In a preferred embodiment: the outer wall of the weighing hopper 10 is slidably connected to the inner wall of the main pipe 2, and the internal structures of the main pipe 2 and the branch pipe 3 are the same. The end of the lead screw 15 near the toothed ring 11 is fixedly assembled to the output shaft of a motor 6, and the inner wall of the moving frame 5 is slidably connected to the outer wall of the motor 6.

[0025] In the above structure, the movable frame 5 and the second motor 6 are designed so that during operation, the position of the stirring rod 8 can be adjusted by one motor 6, and the other motor 6 can automatically drive the stirring rod 8 and the turntable 9 to rotate to stir the material. This makes it easier for the user to transfer the weighed material into the shell 1 and improves the mixing effect of the material, thereby improving the user's work efficiency.

[0026] In a preferred embodiment: the outer wall of the piston 14 is in close contact with the inner wall of the housing 1, and the outer wall of the gear 12 is rotatably connected to the outer wall of the gear ring 11.

[0027] In the above structure, the gear 12 and gear ring 11 structure allows the user to rotate the gear 12 by operating another motor 6 after the mobile frame 5 is moved, thereby allowing the gear ring 11 to rotate and the stirring rod 8 to stir the material without the need for manual operation by the user, thus improving the automation of the device.

[0028] In a preferred embodiment: the controller 25 is electrically connected to the solenoid valve 20, and the outer wall of the feed tube 19 is slidably connected to the inner wall of the main tube 2.

[0029] In the above structure, the controller 25 allows the device to control the opening time of the solenoid valve 20 during the weighing process, thus eliminating the need for manual operation by the user and further improving the automation of the device and the user's accuracy in material proportioning.

[0030] In a preferred embodiment: when the outer wall of the movable ring 16 overlaps with the inner wall of the movable groove 18 near the toothed ring 11, the inner wall of the sliding hole 24 and the outer wall of the stirring rod 8 are on the same horizontal plane, and at this time the interior of the housing 1 is isolated from the outside through the stirring rod 8.

[0031] In the above structure, through the provided stirring rod 8 and sliding hole 24 structure, the user can move the stirring rod 8 until the end of the stirring rod 8 near the branch pipe 3 is flush with the inner wall of the sliding hole 24, thereby sealing the sliding hole 24 to ensure the sealing effect of the device on the powder, and thus ensuring the normal use of the device.

[0032] Working principle: After assembling the device, the user can directly put the main material and auxiliary material into the main pipe 2 and branch pipe 3 respectively. The main pipe 2 and branch pipe 3 are used for weighing. The controller 25 controls the solenoid valve 20 to open and discharge both into the housing 1, thereby achieving the effect of weighing the material and improving the user's accuracy in material proportioning. After being discharged into the housing 1, the user can use one motor 2 6 to make the stirring rod 8 contact with the material. Then, another motor 2 6 drives the stirring rod 8 and the turntable 9 to rotate to stir the main material and auxiliary material, thereby improving the device's injection effect on metal powder and its practicality.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed packaging structure for metal injection molding, comprising a housing (1), characterized in that: The outer wall of the shell (1) is respectively penetrated by the main pipe (2) and the branch pipe (3) and the injection pipe (7), the outer wall of the shell (1) is fixedly provided with a motor (4), the output shaft of the motor (4) is fixedly provided with a lead screw (13), the outer wall of the lead screw (13) is threadedly connected with a piston (14), the middle part of the shell (1) is provided with a movable groove (18), the inner wall of the movable groove (18) is rotatably connected with a lead screw (15), the outer wall of the lead screw (15) is threadedly connected with a moving ring (16), the outer wall of the moving ring (16) is fixedly provided with a connecting rod (17), the end of the connecting rod (17) is fixedly provided with a moving frame (5), the outer wall of the shell (1) and the moving frame (5) is fixedly provided with a motor (6), the output shaft of the motor (6) is fixedly provided with a gear (12), the outer wall of the gear (12) is engaged with a gear ring (11), the outer wall of the gear ring (11) is fixedly provided with a stirring rod (8), the inner wall of the main pipe (2) is provided with a mounting groove (21), the inner wall of the mounting groove (21) is fixedly provided with a straight rod (22), the outer wall of the straight rod (22) is sleeved with a weighing spring (23), the top end of the weighing spring (23) abuts against a weighing hopper (10), the inner wall of the weighing hopper (10) is provided with a solenoid valve (20), the bottom of the weighing hopper (10) is fixedly provided with a guide pipe (19), the inner wall of the shell (1) is rotatably connected with a rotating disc (9), the outer wall of the rotating disc (9) is provided with a sliding hole (24), and the outer wall of the shell (1) is fixedly provided with a controller (25).

2. The hermetic packaging structure for metal injection molding according to claim 1, wherein: The inner wall of the sliding hole (24) is slidably connected with the outer wall of the stirring rod (8), the number of the stirring rod (8) is several, and the several stirring rods (8) are uniformly distributed along the outer wall of the gear ring (11).

3. The hermetic packaging structure for metal injection molding according to claim 1, wherein: The outer wall of the weighing hopper (10) is slidably connected with the inner wall of the main pipe (2), the internal structures of the main pipe (2) and the branch pipe (3) are same, one end of the lead screw (15) close to the gear ring (11) is fixedly connected with the output shaft of a motor (6), and the inner wall of the moving frame (5) is slidably connected with the outer wall of the motor (6).

4. The hermetic packaging structure for metal injection molding according to claim 1, wherein: The outer wall of the piston (14) is closely attached to the inner wall of the shell (1), and the outer wall of the gear (12) is rotatably connected with the outer wall of the gear ring (11).

5. The hermetic packaging structure for metal injection molding according to claim 1, wherein: The controller (25) is electrically connected with the solenoid valve (20), and the outer wall of the guide pipe (19) is slidably connected with the inner wall of the main pipe (2).

6. The hermetic packaging structure for metal injection molding according to claim 1, wherein: When the outer wall of the moving ring (16) is overlapped with the inner wall of the movable groove (18) close to the end of the gear ring (11), the inner wall of the sliding hole (24) and the outer wall of the stirring rod (8) are located at the same horizontal plane, and at this time, the inside of the shell (1) is isolated from the outside through the stirring rod (8).

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