Ventilation device of 3D printer

Abstract

The utility model relates to the technical field of 3D printing, in particular to a ventilation device of a 3D printer, which comprises an air suction port and a fan, a dust collection box is connected between the air suction port and the fan, the air suction port comprises an upper suction port and a lower suction port, the upper suction port is communicated with a working cavity of the printer, the lower suction port is communicated with an equipment cavity of the printer, and an air volume adjusting plate is arranged on one side of the lower suction port. Ventilation of the working cavity is achieved through the upper suction port, ventilation of the equipment cavity is achieved through the lower suction port, the opening size of the lower suction port is adjusted by pulling the adjusting plate, and adjustable ventilation of the equipment cavity and the working cavity is achieved through one fan.

Description

Technical Field

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

[0002] 3D printing technology is based on computer three-dimensional design models. Through software layered discreteness and CNC molding systems, laser beams, hot-melt nozzles and other methods are used to stack and bond special materials such as metal powder, ceramic powder, plastic, and cell tissue layer by layer, and finally stack and mold to produce physical products. Harmful gases and particulate matter will be generated during the 3D printing process. The materials need to be heated during the 3D printing process, and high-temperature operation is very harmful to the equipment, affecting the service life of the equipment and molding accuracy. Reliable ventilation during the use of the equipment is particularly important. Existing ventilation devices usually directly set fans in the shell for ventilation, but the particles in the machine are directly discharged to the outside of the machine, affecting the working environment. Setting multiple fans in the working chamber and the equipment chamber will also cause relatively large vibration and noise. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a 3D printer ventilation device in view of the above-mentioned technical deficiencies. The arranged fans ventilate the equipment cavity and the working cavity respectively through the upper suction port and the lower suction port, thereby reducing the use of fans and solving the problem of high vibration and noise caused by the operation of multiple fans.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a 3D printer ventilation device, including an air suction port and a fan, a dust box is connected between the air suction port and the fan, the air suction port includes an upper suction port and a lower suction port, the upper suction port is connected to the working chamber of the printer, the lower suction port is connected to the equipment chamber of the printer, and an air volume adjustment plate is provided on one side of the lower suction port.

[0005] To further optimize the technical solution, a baffle is provided on the inner side of the top of the dust collecting box, the baffle is arranged opposite to the upper suction port, and a dust collecting chamber is provided on the bottom of the dust collecting box.

[0006] To further optimize the technical solution, dust collecting cotton is provided inside the dust collecting chamber, an inclined air guide surface is provided on the side of the dust collecting cotton opposite to the lower suction port, and a plurality of transverse grooves are provided in the air guide surface.

[0007] To further optimize the technical solution, a shock-absorbing sleeve is provided on a side of the dust box away from the air suction port, and the side of the shock-absorbing sleeve away from the dust box is connected to the fan.

[0008] To further optimize the technical solution, a plurality of groups of filter fins are detachably provided inside the upper suction port, and one end of the plurality of groups of filter fins penetrates deep into the working chamber of the printer.

[0009] To further optimize the technical solution, vertical T-shaped bars are respectively provided on both sides of the lower suction port, the inner sides of the two T-shaped bars are slidably connected to the adjustment plate, and the outer sides of the two T-shaped bars are snap-connected to the dust collection box.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The working chamber is ventilated through the upper suction port, the equipment chamber is ventilated through the lower suction port, and the opening size of the lower suction port is adjusted by pulling the adjustment plate, so that the equipment chamber and the working chamber can be ventilated by one fan;

[0012] 2. The dust collecting box is set up in conjunction with the baffle to achieve the sedimentation of particles in the dust collecting chamber, and the settled particles are collected in the dust collecting cotton to prevent the particles from being blown up again;

[0013] 3. Further blocking of particles is achieved through the provided grooves;

[0014] 4. The filter fins are set to block large foreign matter and waste, preventing the waste from being sucked into the dust box;

[0015] 5. By setting the connection between the shock-absorbing sleeve and the fan, the vibration noise generated during the operation of the fan can be reduced and the impact on the environment can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of a ventilation device for a 3D printer;

[0017] Figure 2 An exploded schematic diagram of a 3D printer ventilation device;

[0018] Figure 3 It is a longitudinal cross-sectional view of a ventilation device for a 3D printer;

[0019] Figure 4 The present invention is a cross-sectional view of a ventilation device of a 3D printer at a lower suction port.

[0020] In the figure: 1. upper suction port; 11. filter fins; 2. lower suction port; 21. T-shaped bar; 3. dust collection box; 30. adjustment plate; 31. baffle; 32. dust collection chamber; 321. dust collecting cotton; 3211. groove; 4. shock-absorbing sleeve; 5. fan; 6. lower air inlet; 7. upper air inlet. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the reference drawings of specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used in this application document to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] Combination Figures 1 to 4 As shown, a 3D printer ventilation device includes an air suction port and a fan 5. The air suction port includes an upper suction port 1 and a lower suction port 2. The upper suction port 1 is connected to the working chamber of the printer. A plurality of groups of filter fins 11 are detachably provided inside the upper suction port 1. One end of the plurality of groups of filter fins 11 is deeply inserted into the working chamber of the printer. The lower suction port 2 is connected to the equipment chamber of the printer. An air volume adjustment plate 30 is provided on one side of the lower suction port 2. An upper air inlet 7 is provided on the top of the working chamber. A lower air inlet 6 is provided on one side of the equipment chamber.

[0024] A dust collecting box 3 is connected between the air inlet and the fan 5. Figure 2 and 4 As shown, vertical T-shaped bars 21 are respectively provided on both sides of the lower suction port 2 , the inner sides of the two T-shaped bars 21 are slidably connected to the adjustment plate 30 , and the outer sides of the two T-shaped bars 21 are snap-fitted to the dust box 3 .

[0025] Combination Figure 3 As shown, a baffle 31 is provided on the inner side of the top of the dust box 3, and the baffle 31 is arranged opposite to the upper suction port 1, and a dust chamber 32 is provided at the bottom of the dust box 3. A dust collecting cotton 321 is provided inside the dust chamber 32, and an inclined air guide surface is provided on the side of the dust collecting cotton 321 opposite to the lower suction port 2, and a plurality of horizontal grooves 3211 are provided in the air guide surface. A shock absorbing sleeve 4 is provided on the side of the dust box 3 away from the air suction port, and the side of the shock absorbing sleeve 4 away from the dust box 3 is connected to a fan 5.

[0026] When in use, the upper air inlet 7 and the lower air inlet 6 form air convection with the air suction port inside the 3D printer, ventilation of the working chamber is achieved through the upper suction port 1, ventilation of the equipment chamber is achieved through the lower suction port 2, the opening size of the lower suction port 2 is adjusted by pulling the adjustment plate 30, and adjustable ventilation of the equipment chamber and the working chamber is achieved through a fan 5, the dust box 3 is provided in cooperation with the baffle 31 to achieve sedimentation of particles in the dust collecting chamber 32, and the settled particles are collected in the dust cotton 321 to prevent the particles from being blown up again, and the particles are further blocked by the provided groove 3211, and larger foreign matter and waste are blocked by the provided filter fins 11 to prevent the waste from being sucked into the dust box 3, and the vibration noise generated during the operation of the fan 5 can be reduced, thereby reducing the impact on the environment.

[0027] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. 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.

Claims

1. A 3D printer ventilation device, comprising an air suction port and a fan (5), characterized in that: A dust collection box (3) is connected between the air suction port and the fan (5), and the air suction port comprises an upper suction port (1) and a lower suction port (2), wherein the upper suction port (1) is connected to the working chamber of the printer, and the lower suction port (2) is connected to the equipment chamber of the printer, and an air volume adjustment plate (30) is provided on one side of the lower suction port (2).

2. A 3D printer ventilation device according to claim 1, characterized in that: A baffle (31) is provided on the inner side of the top of the dust collecting box (3), and the baffle (31) is arranged opposite to the upper suction port (1). A dust collecting chamber (32) is provided on the bottom of the dust collecting box (3).

3. A 3D printer ventilation device according to claim 2, characterized in that: The dust collecting chamber (32) is provided with dust collecting cotton (321) inside, and the dust collecting cotton (321) is provided with an inclined air guide surface on the side opposite to the lower suction port (2), and the air guide surface is provided with a plurality of transverse grooves (3211).

4. A 3D printer ventilation device according to claim 1, characterized in that: A shock-absorbing sleeve (4) is provided on the side of the dust collecting box (3) away from the air suction port, and the side of the shock-absorbing sleeve (4) away from the dust collecting box (3) is connected to the fan (5).

5. A 3D printer ventilation device according to claim 1, characterized in that: The upper suction port (1) is detachably provided with a plurality of groups of filter fins (11) inside, and one end of the plurality of groups of filter fins (11) is deeply inserted into the working chamber of the printer.

6. A 3D printer ventilation device according to claim 1, characterized in that: Vertical T-shaped bars (21) are respectively provided on both sides of the lower suction port (2); the inner sides of the two T-shaped bars (21) are slidably connected to the adjustment plate (30); and the outer sides of the two T-shaped bars (21) are snap-connected to the dust collecting box (3).

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