KR102611878B1 - Air circulation control device for 3D printer - Google Patents

Abstract

The present invention relates to an air circulation control device for a 3D printer. In a 3D printer including a chamber in which a chamber space is formed, the internal air circulating inside the upper or lower or upper and lower portions of the chamber space is filtered and the filtered internal air is filtered. It is equipped with an air circulation control device that heats the air circulation control device, an air inlet through which the internal air of the chamber space flows, an installation space where the functional configuration is installed, and the filtered and heated internal air is discharged into the chamber space. A case sequentially formed with an air outlet; A filtering unit mounted in an installation space close to the air inlet of the case and filtering foreign substances and harmful gases contained in the internal air; a suction unit disposed behind the filtering unit and sucking in internal air and moving it to the air discharge unit; a heating unit disposed behind the suction unit and heating the internal air; and a control unit mounted on one side of the chamber and controlling the suction unit and the heating unit.

Description

Air circulation control device for 3D printer}

The present invention relates to an air circulation control device for a 3D printer, and more specifically, to an air circulation control device for a 3D printer that purifies the air circulating inside and maintains the temperature of the chamber space at a set temperature.

As a method of manufacturing plastic parts for automobiles, a method of manufacturing parts using a 3D printer is being applied instead of general methods such as injection molding and compression molding.

In other words, the 3D printer was simply used for purposes such as modeling or sample production before mass production, but recently, due to the advancement of 3D printer equipment, products that can be mass-produced, focusing on small-scale production products of various types, have been manufactured using 3D printers. I'm doing it.

The 3D printer method uses the principle of FDM (Fused Deposition Modeling), which melts and sprays thermoplastic resin processed into a filament form and stacks it layer by layer, and scans a laser beam on a photocurable resin while simultaneously curing the resin in the scanned area by heat. The SLA (StereoLithography Apparatus) method uses functional polymer or metal powder instead of photocurable resin in SLA, and the SLS (Selective Laser Sintering) method uses the principle of solidifying and molding the functional polymer or metal powder by scanning a laser beam. etc.

Meanwhile, due to the nature of the miniaturized device, which is one of the most outstanding advantages of the 3D printer, most of its use and operation takes place indoors, like traditional printer devices.

However, to date, almost all 3D printers are a form of additive molding that completes the sculpture by applying heat, and whether the raw materials are polymer carbon compounds, ceramics, or metals, they all have the problem of generating harmful substances.

In addition, the printing quality of a 3D printer can be improved by printing at a constant temperature, but in the case of existing 3D printers, there is a problem in that the quality of the product is not uniform due to variations depending on the environment and purpose.

Republic of Korea Patent Publication No. 10-1995629 Republic of Korea Patent Publication No. 10-2016-0125614

The present invention was proposed in consideration of the above situation, and provides an air circulation control device for a 3D printer that can purify the air circulating inside through a filtering unit and supply appropriate air to the chamber space of the main body through a heating unit. It has a purpose.

In addition, the purpose is to provide an air circulation control device for a 3D printer that can check the situation in real time by selectively mounting a photographing unit, temperature sensor, and fire alarm in the chamber space of the chamber and the installation space of the case.

An air circulation control device for a 3D printer according to an embodiment of the present invention is in a 3D printer including a chamber in which a chamber space is formed, and filters the internal air circulating inside the upper or lower or upper and lower portions of the chamber space and filters the filtered air. An air circulation control device that heats the internal air is installed, and the air circulation control device includes an air inlet through which the internal air of the chamber space flows, an installation space where the functional configuration is installed, and an installation space where the filtered and heated internal air is installed into the chamber space. A case sequentially formed with an air outlet discharged to; A filtering unit mounted in an installation space close to the air inlet of the case and filtering foreign substances and harmful gases contained in the internal air; a suction unit disposed behind the filtering unit and sucking in internal air and moving it to the air discharge unit; a heating unit disposed behind the suction unit and heating the internal air; and a control unit mounted on one side of the chamber and controlling the suction unit and the heating unit.

In addition, at least one filament through hole may be formed between the installation space constituting the case and the air discharge portion so that the filament disposed at the upper part of the chamber can be supplied to the chamber space.

In addition, the filtering unit includes a filtering net disposed on the outside and having a plurality of air inlet holes. a filter case disposed behind the filter net; and a plurality of layers of filters mounted inside the filter case.

In addition, a photographing unit that can check the internal condition of the chamber space and the case of the chamber, a temperature sensor that can measure the temperature, and a fire alarm that detects a fire can be optionally installed.

The air circulation control device for a 3D printer according to the present invention can purify the air circulating inside through a filtration unit, and supply internal air at a set temperature to the chamber space of the chamber through a heating unit, as well as printing PLA, ABS, etc. It has the effect of minimizing product shrinkage by preventing product shrinkage and providing a durable product.

In addition, the air circulation control device for a 3D printer according to the present invention is selectively equipped with a photographing unit, a temperature sensor, and a fire alarm in the chamber space of the chamber and the installation space of the case, so that the situation can be checked in real time and the working environment can be improved. It has the effect of being able to easily adapt to the set environment.

Figure 1 is a perspective view showing an embodiment of an air circulation control device for a 3D printer according to the present invention.
Figures 2 and 3 are a configuration diagram and an installation state diagram showing the configuration of an air circulation control device for a 3D printer according to the present invention.
Figure 4 is a flat cross-sectional view showing a case constituting the air circulation control device for a 3D printer according to the present invention.
Figure 5 is a view showing another embodiment of a branch pipe constituting the air circulation control device for a 3D printer according to the present invention.
Figures 6 and 7 are diagrams showing the filtering unit and the heating unit constituting the air circulation control device for a 3D printer according to the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the invention is defined by the claims. Meanwhile, the terms used in this specification are for describing embodiments and are not intended to limit the present invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” or “comprising” means the presence or presence of one or more other components, steps, operations and/or elements other than the mentioned elements, steps, operations and/or elements. Addition is not ruled out.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Figures 2 and 3 are a configuration diagram and an installation state diagram showing the configuration of an air circulation control device for a 3D printer according to the present invention, and Figure 4 is a diagram showing the configuration of the air circulation control device for a 3D printer according to the present invention. It is a flat cross-sectional view showing a case constituting the air circulation control device for a 3D printer according to the present invention, and Figure 5 is a diagram showing another embodiment of a branch pipe constituting the air circulation control device for a 3D printer according to the present invention, and Figure 6 and 7 are configuration diagrams showing the filtering unit and heating unit that constitute the air circulation control device for 3D printer according to the present invention.

The air circulation control device 100 for a 3D printer according to the present invention is mounted on the 3D printer 10, purifies the air circulating inside, and maintains the temperature of the chamber space at the set temperature.

And in the present invention, the 3D printer 10 is composed of a chamber 20 in which a chamber space 30 is formed and a door 40 that opens and closes the chamber space 30 of the chamber 20.

Here, it is revealed that the 3D printer 10 to which the air circulation control device 100 for a 3D printer is applied is not limited to the drawing, and that a known 3D printer can be applied depending on the environment and purpose.

Next, the air circulation control device 100 of the present invention is selectively mounted on the upper or lower part or upper and lower parts of the chamber space 30, and includes a case 200, a filtration unit 300, a suction unit 400, and a heating unit. (500) and includes a control unit (600).

Here, it is revealed that the case 200 may be configured in multiple numbers depending on the environment and purpose in addition to the drawings shown.

The case 200 has an air inlet 210 through which the internal air of the chamber space 30 flows, an installation space 220 where the functional components are installed, and the filtered and heated internal air is discharged into the chamber space 30. The air discharge portion 230 is formed sequentially.

Here, it is natural that the size of the installation space 220 may vary depending on the filtering unit 300, suction unit 400, and heating unit 500 accommodated.

That is, the case 200 introduces internal air through the air inlet 210, and then filters and heats the internal air through the filtering unit 300 and the heating unit 500 mounted in the installation space 220. After that, it is supplied to the chamber space 30 through the air discharge part 230.

Here, forming a plurality of air discharge units 230 supplies heated internal air to the chamber space 30 to minimize temperature deviation and distributes the exhaust air to the 3D printed product to improve the 3D molded product. This is to improve quality.

At this time, it is revealed that an air discharge hole 232 may be formed in the middle of the air discharge unit 230 to supply internal air heated in various directions to the chamber space 30.

Next, at least one filament through hole 240 may be formed between the installation space 220 constituting the case 200 and the air discharge unit 230.

That is, the case 200 is configured so that the filament disposed at the top of the chamber 20 can penetrate the interior when supplied to the chamber space 30, and when the filament passes through the case 200, the heating unit 500 ) and moisture can be removed by heated internal air.

At this time, it is revealed that the filament through hole 240 may be formed close to the heating unit 500 to remove moisture from the filament.

Next, a metal cover 250 with an insulating material 260 inside is optionally installed on the outer surface of the air discharge unit 230 so that it can be moved while minimizing the temperature change of the heated air supplied from the heating unit 500. It is stated that it can be installed as .

The filtering unit 300 is mounted on the case 200.

That is, the filtering unit 300 is mounted in the installation space 220 adjacent to the air inlet 210, and filters foreign substances and harmful gases contained in the internal air flowing into the case 200.

And the filtering unit 300 includes a filtering net 310 with air inlet holes 312 formed at intervals therein, a filter case 320 disposed behind the filtering net 310, and the filter case 320. It consists of a multi-layer filter 330 mounted inside.

That is, the filtering unit 300 filters the internal air that has passed through the air inlet hole 312 of the filtering net 310 into the internal air contained in the internal air through the multi-layer filter 330 mounted inside the filter case 320. It filters out foreign substances and harmful gases.

At this time, the filter 330 is composed of a known HEPA filter, etc. to increase filtration efficiency.

The suction unit 400 is mounted on the case 200.

That is, the suction unit 400 is disposed behind the filtering unit 300, sucks in internal air, and moves it to the air discharge unit 230.

And the suction unit 400 is composed of a motor 410, a suction fan 420 mounted on the rotation axis of the motor 410, and a motor guide member 430 mounted at a distance from the motor 410.

That is, when power is supplied after setting the suction unit 400 through the control unit 600, the motor 410 is driven and the suction fan 420 is rotated to pump the internal air of the chamber space 30 into the case ( It is introduced into the air inlet 210 of 200).

Afterwards, the suction fan 420 moves the internal air that has passed through the filtering unit 300 in the direction of the air discharge unit 230 of the case 200.

And the motor guide member 430 prevents damage to the motor 410 due to heated air moving from the heating unit 500 to the filtering unit 300.

The heating unit 500 is mounted on the case 200.

That is, the heating unit 500 is disposed behind the suction unit 400 to heat the internal air.

Here, the number and installation structure of the heating units 400 are not limited to the drawings, and naturally vary depending on the environment and purpose.

And in the present invention, the heating unit 400 is constructed by selecting a known heating mechanism, and a separate description will be omitted.

The control unit 600 is mounted on one side of the chamber 20.

And the control unit 600 controls the suction unit 400, the heating unit 500, and various other components.

That is, the control unit 600 controls the air flow rate of the suction unit 400 and the temperature of the heating unit 500 in consideration of the operating temperature of the chamber space 30 constituting the chamber 20. .

Here, the control unit 600 is configured by selecting a known controller depending on the environment and purpose, and a separate description will be omitted.

Next, the air circulation control device 100 may be configured as shown in FIG. 4.

An imaging unit 720 capable of checking the internal state of the chamber space 30 and case 200 of the chamber 20, a temperature sensor 740 capable of measuring temperature, and a fire alarm that detects fire. This shows an example in which (760) is selectively installed.

That is, the air circulation control device 100 measures the temperature and an imaging unit 720 that can check the internal condition inside the chamber space 30 of the chamber 20 and the installation space 220 of the case 200. By selectively installing a temperature sensor 740 and a fire alarm 760 that detects fire, the status of the chamber space 30 and the case 200 of the chamber 20 can be checked in real time.

In addition, the suction unit 400 and the heating unit 500 are controlled through the control unit 600 through the image through the imaging unit 720 and the temperature of the temperature sensor 740, and in the event of a fire, a fire alarm ( 760).

An embodiment of the air circulation control device configured as above will be described as follows.

First, prepare a 3D printer 10 consisting of a chamber 20 in which a chamber space 30 is formed and a door 40 that opens and closes the chamber space 30 of the chamber 20.

And an air inlet 210 through which the internal air of the chamber space 30 flows in, an installation space 220 where the functional component is mounted, and an air outlet through which the filtered and heated internal air is discharged into the chamber space 30 ( 230) forms a case 200 that is formed sequentially.

Next, a filter net 310 in which air inlet holes 312 are formed at intervals inside the installation space 220 adjacent to the air inlet 210 of the case 200, at the rear of the filter net 310. A filtering unit 300 consisting of a filter case 320 arranged and a plurality of layers of filters 330 mounted inside the filter case 320 is mounted.

And a motor 410 in the installation space 220 located behind the filtering unit 300, a suction fan 420 mounted on the rotation axis of the motor 410, and a suction fan 420 mounted at a distance from the motor 410. After the suction unit 400 consisting of the motor guide member 430 is installed, the heating unit 500 that heats the internal air is installed in the installation space 220 located behind the suction unit 400.

Next, the case 200 equipped with the filtering unit 300, the suction unit 400, and the heating unit 500 is mounted on the upper part of the chamber space 30, and then the suction unit is installed on one side of the chamber 20. When the control unit 500 that controls the heating unit 500 and various components is installed, the installation of the air circulation control device 100 is completed.

In this state, when it is desired to use the air circulation control device 100 according to the use of the 3D printer 10, it is as follows.

First, the air flow rate of the suction unit 400 and the heating temperature of the heating unit 500 are set through the control unit 600.

Thereafter, the suction unit 400 transfers the internal air introduced through the filtering unit 300 to the heating unit 500 according to the setting value of the control unit 600, and the heating unit 500 is an air inlet ( The air moving from 210 to the air discharge unit 230 is heated, and the suction unit 400 supplies the heated internal air to the chamber space 30 through the air discharge unit 230.

Through this process, the internal air in the chamber space of the chamber can be purified and the temperature of the chamber space can be maintained at the set temperature.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations can be made by those skilled in the art without departing from the essential characteristics of the present invention.

Accordingly, the embodiments expressed in the present invention do not limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas that are equivalent or within the equivalent scope should be construed as being included in the scope of rights of the present invention.

10: 3D printer 20: Chamber
30: Chamber space 40: Door
100: Air circulation control device for 3D printer
200: Case 210: Air inlet
220: Installation space 230: Air discharge unit
232: air discharge hole 240: filament through hole
250: metal cover 260: insulation material
300: filtration unit 310: filter net
312: air inlet hole 320: filter case
330: filter
400: suction part 410: motor
420: Suction fan 430: Motor guide port
500: Heating part
600: Control unit
720: Photographing unit 740: Temperature detection sensor
760: Fire alarm

Claims (4)

In a 3D printer including a chamber in which a chamber space is formed,
An air circulation control device is installed to filter the internal air circulating inside the upper or lower or upper and lower parts of the chamber space and heat the filtered internal air,
The air circulation control device is,
A case sequentially formed with an air inlet through which the internal air of the chamber space flows, an installation space where a functional component is mounted, and an air outlet through which the filtered and heated internal air is discharged into the chamber space;
A filtering unit mounted in an installation space close to the air inlet of the case and filtering foreign substances and harmful gases contained in the internal air;
a suction unit disposed behind the filtering unit and sucking in internal air and moving it to the air discharge unit;
a heating unit disposed behind the suction unit and heating the internal air; and
A control unit mounted on one side of the chamber and controlling the suction unit and the heating unit,
At least one filament through hole is formed between the installation space constituting the case and the air discharge portion so that the filament disposed at the upper part of the chamber can be supplied to the chamber space,
The filtering unit includes a filtering net disposed on the outside and having a plurality of air inlet holes; a filter case disposed behind the filter net; and a multi-layer filter mounted inside the filter case,
At least one or a combination of a photographing unit for checking the internal condition of the chamber space of the chamber and the case, a temperature sensor for measuring temperature, and a fire alarm for detecting fire is installed,
An air circulation control device for a 3D printer, characterized in that a metal cover provided with an insulating material inside is mounted on the outer surface of the air discharge unit so that the heated air supplied from the heating unit can be moved while minimizing temperature changes. delete delete delete

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