3D printer consumable pneumatic device

Abstract

The utility model discloses a 3D printer consumable pneumatic device, relates to 3D printing technical field, include: shell, air outlet pipe, screen layer, be equipped with filter structure inside the air outlet pipe, the filter structure includes filter pipe, the filter pipe threaded connection is in the air outlet pipe and is located the position of upper end, and the filter pipe is located in the air outlet pipe. A filter pipe is fixedly connected to the outer side of the shell, a connecting cover is fixedly connected to the outer side of the filter pipe, a pressure sensor is fixedly connected to the interior of the filter pipe, a control panel is fixedly arranged on the outer side of the shell, and a motor is fixedly connected to the upper end of a sealing cover. The problems that in the prior art, the speed and strength of airflow may be non-uniformly distributed in a mixing chamber, a filter layer is fixedly arranged at the lower end of an exhaust pipe, the filter layer is inconvenient to clean and replace regularly, and the pressure change of gas in the filter layer cannot be accurately sensed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a pneumatic device for consumables of a 3D printer. Background Art

[0002] The pneumatic device for 3D printer consumables refers to a pneumatic system used to control and supply consumables (such as liquids, powders, gases, etc.). The device is usually composed of a pressure source, pneumatic valves, pipelines, and control systems. Its main function is to transport consumables from storage containers to the print head or nozzle, and to achieve precise control and adjustment to meet the needs of the 3D printing process.

[0003] The Chinese invention with publication number CN0775028A proposes a pneumatic mixing device for 3D printer consumables: high-pressure gas is introduced into the mixing chamber through an air inlet pipe, and a spiral air flow is formed in the mixing chamber in conjunction with the spiral air guide grooves on the side walls of the mixing chamber, thereby fully mixing the 3D printing consumables to prepare for subsequent work; finally, the excess gas in the mixing chamber is discharged again through the exhaust pipe.

[0004] However, the existing technology still has shortcomings:

[0005] 1. The spiral air guide groove in the mixing chamber can only form a spiral airflow through high-pressure airflow. The speed and intensity of the airflow may be unevenly distributed in the mixing chamber. During the mixing process, the flow speed and path of the consumables in the mixing chamber may be different, resulting in insufficient mixing of some parts of the consumables.

[0006] 2. The filter layer is fixed at the lower end of the exhaust pipe, which makes it inconvenient to clean and replace the filter layer regularly, and it is impossible to accurately sense the pressure changes of the gas in the filter layer. This means that it is impossible to know whether the filter layer is working normally, whether it needs to be cleaned or replaced. If the filter layer is blocked or its effect is reduced, the gas may not be effectively filtered, which in turn affects the normal operation of the equipment or the quality of the product. Utility Model Content

[0007] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a pneumatic device for 3D printer consumables, which solves the problems in the prior art that the spiral air guide groove in the mixing chamber can only form a spiral airflow through high-pressure airflow, the speed and intensity of the airflow may be unevenly distributed in the mixing chamber, the filter layer is fixedly arranged at the lower end of the exhaust pipe, it is inconvenient to regularly clean and replace the filter layer, and the pressure change of the gas in the filter layer cannot be accurately sensed.

[0008] To achieve the above-mentioned purpose, the utility model proposes a pneumatic device for 3D printer consumables, comprising: a shell, an air outlet pipe, and a screen layer. A filter structure is arranged inside the air outlet pipe, and the filter structure comprises a filter tube, and the filter tube is threadedly connected to the inside of the air outlet pipe and is located at the upper end. A connecting cover is fixedly connected to the outside of the filter tube, and a pressure sensor is fixedly connected to the inside of the filter tube. A control panel is fixedly arranged on the outside of the shell, and a motor is fixedly connected to the upper end of the sealing cover, and a rotating shaft is fixedly connected to the output shaft of the motor, and a plurality of stirring rods are fixedly connected to the outside of the rotating shaft.

[0009] As a further solution of the utility model: a mixing chamber is provided inside the shell, a sealing cover is fixedly connected to the upper end of the shell, a screen layer is fixedly connected to the lower end of the shell, a feed pipe is fixedly connected to the upper end of the sealing cover near one side, an air outlet pipe is fixedly connected to the upper end of the sealing cover near the other side, and a filtering structure is provided inside the air outlet pipe and at the upper end.

[0010] As a further solution of the utility model: the outer wall of the filter tube is provided with threads, and the outer side of the filter tube and the upper end thereof are fixedly connected with a connection cover.

[0011] As a further solution of the utility model: a metal screen is fixedly connected inside the filter tube and near the lower end, a plurality of filter holes are opened at the upper and lower ends of the metal screen, and an activated carbon filter layer is fixedly connected inside the filter tube and near the middle end.

[0012] As a further solution of the utility model: a pressure sensor is fixedly connected to the interior of the filter tube and near the upper end.

[0013] As a further solution of the utility model: the lower end of the screen layer is fixedly connected with a conical discharger, the lower end of the conical discharger is provided with a discharge port, the discharge port is inserted with an electric control valve, and the electric control valve is electrically connected to the control panel.

[0014] As a further solution of the present invention: the pressure sensor is electrically connected to the control panel.

[0015] As a further solution of the utility model: the output shaft of the motor passes through the sealing cover, a plurality of stirring rods are fixedly connected to the outer side of the rotating shaft, and the bottom of the rotating shaft is rotatably connected to the screen layer.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting up a motor, a rotating shaft, and a stirring rod, start the motor, and the output shaft of the motor drives the rotating shaft to rotate, and the rotating shaft drives several stirring rods to increase the movement and mixing effect of the consumables, so that the consumables of different components can be better mixed together.

[0018] 2. Combine the pressure sensor and control panel to establish a monitoring and early warning system for the filter structure to promptly remind users to clean and replace the filter. By setting a threshold, when the resistance or effect of the filter structure reaches a certain level, a warning signal will be issued, and the staff can clean or replace the filter structure in time.

[0019] 3. By turning the connection cover, the filter tube can be threadedly connected to the air outlet pipe, making it easy to disassemble the filter tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is an enlarged view of part A of the utility model.

[0022] In the figure: 1. Shell; 2. Sealing cover; 3. Screen layer; 4. Conical discharger; 5. Discharge port; 6. Electric control valve; 7. Feed pipe; 8. Stirring rod; 9. Rotating shaft; 10. Motor; 11. Air outlet pipe; 12. Control panel; 13. Filter tube; 14. Metal screen; 15. Activated carbon filter layer; 16. Pressure sensor; 17. Connecting cover. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-2 As shown, a 3D printer consumable pneumatic device includes: a shell 1, wherein a mixing chamber is arranged inside the shell 1, and the function of the mixing chamber is to mix different consumables so as to obtain the required material combination in the 3D printing process.

[0025] A sealing cover 2 is fixedly connected to the upper end of the shell 1 , and a screen layer 3 is fixedly connected to the lower end of the shell 1 .

[0026] A feed pipe 7 is fixedly connected to the upper end of the sealing cover 2 and close to one side, and the 3D printing consumables that need to be premixed are added to the mixing chamber through the feed pipe 7. An air outlet pipe 11 is fixedly connected to the upper end of the sealing cover 2 and close to the other side, and the excess gas in the mixing chamber is discharged through the air outlet pipe 11. A filtering structure is provided inside the air outlet pipe 11 and at the upper end.

[0027] The filtering structure includes a filter tube 13, the outer wall of which is provided with a thread, the filter tube 13 is threadedly connected to the inside of the air outlet pipe 11 and is located at the upper end, and a connecting cover 17 is fixedly connected to the outer side of the filter tube 13 and is located at the upper end. By rotating the connecting cover 17, the filter tube 13 can be threadedly connected to the air outlet pipe 11, which facilitates the disassembly of the filter tube 13.

[0028] A metal screen 14 is fixedly connected inside the filter tube 13 near the lower end. The upper and lower ends of the metal screen 14 are provided with a plurality of filter holes for filtering smaller particles of impurities. An activated carbon filter layer 15 is fixedly connected inside the filter tube 13 near the middle end. The activated carbon filter layer 15 can absorb more organic gases.

[0029] A pressure sensor 16 is fixedly connected to the interior of the filter tube 13 and near the upper end thereof. The pressure sensor 16 can accurately sense the pressure change of the gas in the filter layer.

[0030] The lower end of the screen layer 3 is fixedly connected with a conical discharger 4 , and the lower end of the conical discharger 4 is provided with a discharge port 5 , and the discharge port 5 is inserted with an electric control valve 6 .

[0031] A control panel 12 is fixedly disposed on the outer side of the housing 1 , and the pressure sensor 16 and the electric control valve 6 are both electrically connected to the control panel 12 .

[0032] The upper end of the sealing cover 2 is fixedly connected to a motor 10, the output shaft of the motor 10 passes through the sealing cover 2 and is fixedly connected to a rotating shaft 9, a plurality of stirring rods 8 are fixedly connected to the outer side of the rotating shaft 9, and the bottom of the rotating shaft 9 is rotatably connected to the screen layer 3.

[0033] The motor 10 is started, and the output shaft of the motor 10 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives a plurality of stirring rods 8 to increase the movement and mixing effect of the consumables, so that the consumables of different components are better mixed together.

[0034] Working principle:

[0035] The 3D printing consumables that need to be premixed are added into the mixing chamber through the feed pipe 7, and then the electric control valve 6 is closed through the control panel 12, and the motor 10 is started. The output shaft of the motor 10 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives a plurality of stirring rods 8 to increase the movement and mixing effect of the consumables, so that the consumables of different components are better mixed together.

[0036] By setting a threshold, when the pressure sensor 16 senses that the pressure of the gas in the filter layer exceeds the threshold, a warning signal is sent to the control panel 12 to prompt the staff to clean or replace the filter structure.

[0037] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A pneumatic device for 3D printer consumables, characterized in that: include: A shell (1), an air outlet pipe (11), and a screen layer (3); a filter structure is arranged inside the air outlet pipe (11); the filter structure comprises a filter tube (13); the filter tube (13) is threadedly connected inside the air outlet pipe (11) and is located at the upper end; a connection cover (17) is fixedly connected to the outside of the filter tube (13); a pressure sensor (16) is fixedly connected to the inside of the filter tube (13); a control panel (12) is fixedly arranged on the outside of the shell (1); a sealing cover (2) is fixedly connected to the upper end of the shell (1); a motor (10) is fixedly connected to the upper end of the sealing cover (2); the output shaft of the motor (10) is fixedly connected to a rotating shaft (9); and a plurality of stirring rods (8) are fixedly connected to the outside of the rotating shaft (9).

2. A 3D printer consumable pneumatic device according to claim 1, characterized in that: A mixing chamber is provided inside the shell (1), a screen layer (3) is fixedly connected to the lower end of the shell (1), a feed pipe (7) is fixedly connected to the upper end of the sealing cover (2) and a position close to one side, an air outlet pipe (11) is fixedly connected to the upper end of the sealing cover (2) and a position close to the other side, and a filtering structure is provided inside the air outlet pipe (11) and at the upper end.

3. A 3D printer consumable pneumatic device according to claim 1, characterized in that: The outer wall of the filter tube (13) is provided with threads, and a connection cover (17) is fixedly connected to the outer side of the filter tube (13) and at the upper end thereof.

4. A 3D printer consumable pneumatic device according to claim 1, characterized in that: A metal screen (14) is fixedly connected inside the filter tube (13) and near the lower end thereof, a plurality of filter holes are provided at the upper and lower ends of the metal screen (14), and an activated carbon filter layer (15) is fixedly connected inside the filter tube (13) and near the middle end thereof.

5. A 3D printer consumable pneumatic device according to claim 1, characterized in that: A pressure sensor (16) is fixedly connected inside the filter tube (13) and at a position close to the upper end.

6. A 3D printer consumable pneumatic device according to claim 2, characterized in that: The lower end of the screen layer (3) is fixedly connected to a conical discharger (4), the lower end of the conical discharger (4) is provided with a discharge port (5), the discharge port (5) is inserted with an electric control valve (6), and the electric control valve (6) is electrically connected to a control panel (12).

7. A 3D printer consumable pneumatic device according to claim 1, characterized in that: The pressure sensor (16) is electrically connected to the control panel (12).

8. A 3D printer consumable pneumatic device according to claim 1, characterized in that: The output shaft of the motor (10) passes through the sealing cover (2), a plurality of stirring rods (8) are fixedly connected to the outer side of the rotating shaft (9), and the bottom of the rotating shaft (9) is rotatably connected to the screen layer (3).

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