Continuous internal mixer for powder injection molding feeding

Abstract

The utility model discloses a continuous internal mixer for powder injection molding feeding, and belongs to the technical field of internal mixers. A continuous internal mixer for powder injection molding feeding comprises a supporting base, and an internal mixing driving part and an internal mixing cylinder box which are respectively mounted above the supporting base, and further comprises a feeding assembly which is fixed right above the internal mixing cylinder box and is used for feeding powder; the discharge port is fixed on one side of the internal mixing cylinder box and is used for discharging the mixed feed; wherein a preheating cavity is formed in the internal mixing cylinder box; according to the internal mixing device, the internal mixing cylinder box, the preheating cavity, the water inlet pipe and the water outlet pipe are matched, so that the internal mixing device can be preheated in advance, a good working environment can be provided when powder and a binder are mixed, the problem of low processing efficiency during mixing is solved, and the service life of the powder and the binder is prolonged. And the mixing uniformity of the powder and the binder is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of internal mixers, in particular to a continuous internal mixer used for feeding powder injection molding. Background Art

[0002] The continuous internal mixer is a device used for mixing and processing powders and binders. It achieves mixing and processing under high temperature and high pressure through two sets of rotating rotors. It can be widely used in the metal and ceramic injection molding industry to achieve efficient and continuous production.

[0003] As in the prior art, the Chinese patent authorization number is CN212242291U, the application date is: 2020-12-29, and the name is a dual-rotor continuous internal mixer, including a discharge valve, a bearing seat, an internal mixer, a coupling, a reduction box, a motor, a rotor, a bearing and a barrel cover. The upper end face of the internal mixer body is equipped with a internal mixer, and a rotor is equipped inside the internal mixer. Bearings are equipped on the left and right sides of the annular side of the rotor, a bearing seat is equipped on the left side of the rotor, a coupling is equipped on the right side of the rotor, a reduction box is connected to the right side of the coupling, and a motor is installed on the right side of the reduction box. A discharge valve is equipped on the left side of the front end face of the internal mixer, and a barrel cover is equipped on the upper end face of the internal mixer. This design solves the problem that the original internal mixer is inconvenient to clean and poorly maintained after blockage. The utility model has a reasonable structure, which is convenient for improving the extrusion effect of the internal mixer and facilitating internal cleaning.

[0004] However, the above patent still has the disadvantage that, when mixing the powder and the binder, it is impossible to preheat the inside of the mixing barrel in advance, so that it cannot provide a good working environment during the later processing, which is easy to cause low processing efficiency during mixing, further reducing the uniformity of the mixing of the powder and the binder.

[0005] Therefore, in view of this problem, the utility model discloses a continuous internal mixer for feeding powder injection molding. Utility Model Content

[0006] The utility model aims to solve the problems in the prior art and proposes a continuous internal mixer for feeding powder injection molding.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A continuous internal mixer for feeding powder injection molding, comprising a supporting base, and an internal mixer drive unit and an internal mixer cylinder box respectively installed above the supporting base, and also comprising: a feeding assembly fixed just above the internal mixer cylinder box for feeding powder; a discharge port fixed on one side of the internal mixer cylinder box for discharging mixed feed; wherein a preheating chamber is provided inside the internal mixer cylinder box, and a water inlet pipe and a water outlet pipe are distributed and connected inside the preheating chamber, and the ends of the water inlet pipe and the water outlet pipe are fixed on one side of the internal mixer cylinder box.

[0009] Preferably, the mixing drive unit includes a gear box fixed on the top of the supporting base, the interior of the gear box is rotatably connected to a main rotor and a secondary rotor via bearings, ends of the main rotor and the secondary rotor are passed through the interior of the mixing cylinder box for mixing and mixing the powder, one end of the main rotor and the main rotor are fixedly connected to fixed gears, the surfaces of the two fixed gears are meshed with connecting gears, the connecting gears rotate inside the gear box via a rotating shaft, and a driving unit is provided on one side of the gear box for driving the main rotor.

[0010] Preferably, the other ends of the main rotor and the secondary rotor are fixedly connected with vortex blades, and the vortex blades are located inside the preheating chamber.

[0011] Preferably, the interior of the main rotor and the secondary rotor is hollow, and through holes are provided on the surfaces of the main rotor and the secondary rotor, and the through holes are communicated with the hollow interior of the main rotor and the secondary rotor.

[0012] Preferably, the feeding assembly comprises a fixed shell fixed on the top of the mixing cylinder box, and one side of the fixed shell is connected to a feeding hopper, and the feeding hopper is used to feed the powder.

[0013] Preferably, a cylinder is fixedly connected to the top of the fixed shell, a pressure plate is fixedly connected to the output end of the cylinder, and the pressure plate slides inside the fixed shell.

[0014] Preferably, two partitions are provided in the middle of the preheating chamber, and the discharge port is fixed between the two partitions.

[0015] Compared with the prior art, the utility model provides a continuous internal mixer for powder injection molding feeding, which has the following beneficial effects:

[0016] The continuous internal mixer for powder injection molding feeding can perform preheating treatment in advance through the cooperation between the internal mixer box, the preheating chamber, the water inlet pipe and the water outlet pipe. Through this arrangement, it is possible to provide a good working environment when mixing the powder and the binder, prevent the problem of low processing efficiency during mixing, and further improve the uniformity of the mixing of the powder and the binder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a continuous internal mixer for feeding powder injection molding proposed by the utility model;

[0018] Figure 2 This is a front structural schematic diagram of a continuous internal mixer for feeding powder injection molding proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the AA cutaway structure of a continuous internal mixer for feeding powder injection molding proposed by the utility model;

[0020] Figure 4 This is a schematic cross-sectional structure diagram of a continuous internal mixer for feeding powder injection molding proposed by the utility model;

[0021] Figure 5 The left side structural schematic diagram of a continuous internal mixer for feeding powder injection molding proposed by the utility model.

[0022] In the figure: 1. Support base; 2. Mixing drive unit; 21. Gear box; 22. Main rotor; 23. Secondary rotor; 24. Fixed gear; 25. Connecting gear; 26. Vortex blade; 27. Through hole; 3. Mixing cylinder box; 31. Preheating chamber; 32. Water inlet pipe; 33. Water outlet pipe; 4. Feed assembly; 41. Fixed shell; 42. Feed hopper; 43. Cylinder; 44. Pressure plate; 5. Discharge port. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-Figure 5A continuous internal mixer for feeding powder injection molding, comprising a supporting base 1, and an internal mixer drive unit 2 and an internal mixer cylinder box 3 respectively installed above the supporting base 1, and also comprising: a feeding assembly 4, fixed just above the internal mixer cylinder box 3, for feeding the powder; a discharge port 5, fixed on one side of the internal mixer cylinder box 3, for discharging the mixed powder; wherein a preheating chamber 31 is provided inside the internal mixer cylinder box 3, and a water inlet pipe 32 and a water outlet pipe 33 are distributed and connected inside the preheating chamber 31, and the ends of the water inlet pipe 32 and the water outlet pipe 33 are both fixed on one side of the internal mixer cylinder box 3.

[0026] In the utility model, when in use, firstly, the support base 1 is used to support and install the internal mixing drive part 2 and the internal mixing cylinder box 3 respectively, and then the feeding assembly 4 is installed above the internal mixing cylinder box 3. Under the setting of the feeding assembly 4, it is used to put the powder and the binder into the internal mixing cylinder box 3, and then under the drive of the internal mixing drive part 2, it can extrude and mix the powder and the binder, so as to evenly mix the powder and the binder, and finally discharge them through the discharge port 5 to the next process for further processing;

[0027] When the powder and the binder are mixed, the hot water end is connected through the water inlet pipe 32 so that hot water can flow into the preheating chamber 31 to preheat the interior of the preheating chamber 31. The preheated hot water is discharged through the water outlet pipe 33 to ensure that the temperature inside the mixing cylinder box 3 can be gradually increased, thereby providing a good working environment when the powder and the binder are mixed, thereby further improving the uniformity of the mixing of the powder and the binder.

[0028] Reference Figure 3 The internal kneading driving part 2 includes a gear box 21 fixed on the top of the supporting base 1, and the main rotor 22 and the secondary rotor 23 are rotatably connected to the inside of the gear box 21 through bearings. The ends of the main rotor 22 and the secondary rotor 23 are both inserted into the internal kneading cylinder box 3 to mix and knead the powder. The main rotor 22 and one end of the main rotor 22 are both fixedly connected to fixed gears 24, and the surfaces of the two fixed gears 24 are meshed with connecting gears 25. The connecting gears 25 rotate inside the gear box 21 through a rotating shaft. A driving part is provided on one side of the gear box 21, and the driving part is used to drive the main rotor 22.

[0029] In the utility model, through the setting of the gear box 21, it can be connected to the main rotor 22 and the secondary rotor 23 respectively, and then the main rotor 22 can be rotated through the driving part. When the main rotor 22 rotates, the fixed gear 24 on the surface can be driven to rotate. When the fixed gear 24 rotates, the connecting gear 25 can be rotated. When the connecting gear 25 rotates, the fixed gear 24 fixed to the secondary rotor 23 can be driven to rotate, so that the two main rotors 22 and the secondary rotor 23 can be rotated synchronously inside the mixing cylinder box 3, so that the powder and binder inside the mixing cylinder box 3 can be fully extruded, crushed and mixed.

[0030] Reference Figure 3 The other ends of the main rotor 22 and the secondary rotor 23 are fixedly connected with vortex blades 26 , and the vortex blades 26 are located inside the preheating chamber 31 .

[0031] In the utility model, the vortex blades 26 can be synchronously rotated by driving the main rotor 22 and the secondary rotor 23. When the vortex blades 26 at the end of the main rotor 22 rotate, the water flow inside the preheating chamber 31 can be guided to circulate quickly for preheating processing, and when the vortex blades 26 at the end of the secondary rotor 23 rotate, the water flow after preheating processing inside the preheating chamber 31 can be guided and discharged, so as to facilitate the entry of water flow at a later time.

[0032] Reference Figure 3 The main rotor 22 and the secondary rotor 23 are hollow inside, and through holes 27 are opened on the surfaces of the main rotor 22 and the secondary rotor 23. The through holes 27 are connected to the hollow settings opened inside the main rotor 22 and the secondary rotor 23.

[0033] In the utility model, the main rotor 22 and the secondary rotor 23 are both hollow, so that water can flow into the main rotor 22 and the secondary rotor 23, so that the main rotor 22 and the secondary rotor 23 can be preheated while being preheated, and can also be cooled and cooled later.

[0034] Reference Figure 4 The feeding assembly 4 includes a fixed shell 41 fixed on the top of the mixing cylinder box 3, and a feeding hopper 42 is connected to one side of the fixed shell 41, and the feeding hopper 42 is used to feed the powder.

[0035] In the utility model, the feed hopper 42 is provided on one side of the fixed shell 41 , so that the powder can be conveniently put into the fixed shell 41 for transportation, so as to accurately enter the mixing cylinder box 3 .

[0036] Reference Figure 4 A cylinder 43 is fixedly connected to the top of the fixed shell 41 , and a pressure plate 44 is fixedly connected to the output end of the cylinder 43 . The pressure plate 44 slides inside the fixed shell 41 .

[0037] In the utility model, the cylinder 43 is driven to move the pressure plate 44 downward, thereby pressurizing the interior of the fixed shell 41, so that the powder can be quickly put into the mixing cylinder box 3 for mixing and mixing processing.

[0038] Reference Figure 3 Two partitions are arranged in the middle of the preheating chamber 31, and the discharge port 5 is fixed between the two partitions.

[0039] In the utility model, the two partitions are arranged so that the discharge port 5 can be isolated and protected, and the water flow can be guided to circulate along the inside of the preheating chamber 31 .

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous internal mixer for powder injection molding feeding, comprising a support base (1), and an internal mixer drive unit (2) and an internal mixer barrel box (3) respectively mounted above the support base (1), characterized in that: Also includes: A feeding assembly (4) is fixed just above the mixing cylinder box (3) and is used to feed the powder; A discharge port (5) is fixed on one side of the mixing cylinder box (3) and is used to discharge the mixed feed; A preheating chamber (31) is provided inside the internal mixing cylinder box (3), and a water inlet pipe (32) and a water outlet pipe (33) are distributed and connected inside the preheating chamber (31), and the ends of the water inlet pipe (32) and the water outlet pipe (33) are fixed on one side of the internal mixing cylinder box (3).

2. A continuous internal mixer for powder injection molding feeding according to claim 1, characterized in that: The internal kneading drive unit (2) comprises a gear box (21) fixed on the top of the support base (1); the gear box (21) is rotatably connected to a main rotor (22) and a secondary rotor (23) via bearings; the ends of the main rotor (22) and the secondary rotor (23) are both inserted into the internal kneading cylinder box (3) for mixing and kneading powders; the main rotor (22) and one end of the main rotor (22) are both fixedly connected to a fixed gear (24); the surfaces of the two fixed gears (24) are meshedly connected to a connecting gear (25); the connecting gear (25) is rotated inside the gear box (21) via a rotating shaft; a driving unit is provided on one side of the gear box (21); the driving unit is used to drive the main rotor (22).

3. A continuous internal mixer for powder injection molding feeding according to claim 2, characterized in that: The other ends of the main rotor (22) and the secondary rotor (23) are both fixedly connected with vortex blades (26), and the vortex blades (26) are located inside the preheating chamber (31).

4. A continuous internal mixer for powder injection molding feeding according to claim 2, characterized in that: The interior of the main rotor (22) and the secondary rotor (23) is hollow, and through holes (27) are provided on the surfaces of the main rotor (22) and the secondary rotor (23), and the through holes (27) are communicated with the hollow interior of the main rotor (22) and the secondary rotor (23).

5. A continuous internal mixer for powder injection molding feeding according to claim 1, characterized in that: The feeding assembly (4) comprises a fixed shell (41) fixed on the top of the mixing cylinder box (3), and one side of the fixed shell (41) is connected to a feeding hopper (42), and the feeding hopper (42) is used to feed powder.

6. A continuous internal mixer for powder injection molding feeding according to claim 5, characterized in that: The top of the fixed shell (41) is fixedly connected to a cylinder (43), the output end of the cylinder (43) is fixedly connected to a pressure plate (44), and the pressure plate (44) slides inside the fixed shell (41).

7. A continuous internal mixer for powder injection molding feeding according to claim 1, characterized in that: Two partitions are provided in the middle of the preheating chamber (31), and the discharge port (5) is fixed between the two partitions.

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