KR20170025981A - Apparatus for detecting of material residual quantity in a three dimensional printer - Google Patents

Abstract

The present invention relates to an attachment for detecting material residual quantity of a three-dimensional printer, and comprises: a bobbin; at least one damageable device which is provided inside the bobbin; a detector which is connected to the damageable device by an electrical signal, and can check whether it is damaged; and a notification part which is connected to the detector to inform a user of the material residual quantity of the three-dimensional printer. According to the present invention, without using an exclusive three-dimensional printer, the residual quantity of a filament can be accurately confirmed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a three-dimensional printer material remainder determination unit,

An object of the present invention is to provide an apparatus for determining remaining amount of three-dimensional printer material, more particularly, to receive an alarm using an additional apparatus in a container for holding a material to periodically judge a remaining amount of a material used in a three- Dimensional printer material can be accurately judged and the remaining amount of the material can be accurately determined, thereby providing a convenience in use in a three-dimensional printer.

Recently, three-dimensional printing technology has been attracting attention in the prototype development stage or small quantity production of various kinds of products at the prototype development stage.

3D printing is performed by analyzing the three-dimensional shape of an object through a three-dimensional graphic design program and generating a combination of two-dimensional cross-sectional shape data. Then, raw materials such as ABS and PLA It is a technique of forming a three-dimensional shape of an object by forming it on an output bed by various methods.

In the three-dimensional printing, there are a FDM (Fused Deposition Modeling) method or a FFF (Fused Filament Fabrication) method in which a raw material is extruded and sequentially laminated on an output bed to realize a three-dimensional shape. The powder is melted with a high- There are various SLS (Selective Laser Sintering) systems for realizing a three-dimensional shape, and SLA (Stereolithography Apparatus) systems for projecting a laser beam into a water tank containing a liquid photocurable resin.

In the above lamination method, a thermoplastic resin as a raw material is supplied to an extruder by using a motor and a gear, and melts in a nozzle to laminate one layer at a time, in a form similar to that formed by winding a cylindrical rod- It refers to how to build up. The material is called a filament, and it is common to call a cylindrical strap which is closed on both sides of the material to be wound, such as a bobbin or spool.

The filaments injected from the nozzle are laminated one by one and cured by air or a separate cooling device, and the output bed is formed by stacking the next layer by lowering the height of one layer each time the lamination of one layer is completed, do.

In the case of a three-dimensional printer using a stacking method, it is often difficult to grasp the amount of the filament remaining in the bobbin, and many techniques for confirming the remaining amount of the method have already been put on the market. For example, it is possible to grasp the remaining amount by continuously measuring the weight of the filament, to calculate the number of rotations of the bobbin, or to calculate the radius based on the distance returned from the light receiving sensor It is.

However, in the general case of the above-described technology, there is a disadvantage in that the apparatus itself is characterized and the versatility is deteriorated because it operates only when the filament is used in a three-dimensional printer manufactured by the company.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a bobbin for a filament, So that it is possible to make it possible to provide convenience to users.

Another object of the present invention is to provide a technique for constructing an additional device in a bobbin in order to accurately grasp the amount of the filament remaining in the bobbin.

As a means for solving the above-mentioned technical problem, it is possible to accurately identify the remaining amount of the filament by the bobbin recognizing the broken contents of the bobbin by breaking the specific parts in the bobbin due to the force that the filament is released during the process of using the bobbin. Provides a technology that can be used without using a 3D printer.

By using the present invention, the remaining amount of the filament can be accurately confirmed without using a dedicated three-dimensional printer.

1 is a schematic diagram of the present invention.
2 is a side view according to an embodiment of the present invention.
3 is an enlarged view of a notification unit according to an embodiment of the present invention.
4 is an enlarged view of a sensor according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention, parts not related to the description are omitted.

Furthermore, when a part is referred to as being "comprising" or "comprising" an element, it is understood that it may include other elements as well, without excluding other elements unless specifically stated otherwise.

1 is a schematic diagram of the present invention.

Referring to FIG. 1, the apparatus for determining remaining amount of a three-dimensional printer material according to the present invention includes a bobbin 100, a breakable device 200 provided in the bobbin 100, And a notification unit 400 connected to the detector and informing the user of the remaining amount of the filament.

When the filament is wound on the bobbin 100 according to the present invention, the first first wheel is completely wound, and then the breakable device 200 is installed. Although the breakable device 200 is described as a microfilm, the present invention is not limited thereto. The breakable device 200 may be any device that can be broken by the rotation of the bobbin 100 such as styrofoam and the resistance of the filament, Of course.

The filament is wound and the breakable device 200 is installed at regular intervals. In the case of the predetermined interval, it may be different depending on the product to be produced, and the following description will be made on the assumption that it is installed every 25% interval, but the present invention is not limited thereto.

In the three-dimensional printer of the laminate molding type, the material supply motor moves the filament to the extruder to form an object. When the filament completed by the above-described method is installed in a three-dimensional printer, if the amount of the filament used exceeds the 25% of the total amount during the process of unwinding the filament by the material supplying motor, Is broken by the rotation of the bobbin 100 and the resistance of the filament.

When the microfilm is broken, the detector connected to the microfilm detects the corresponding electrical signal and sends a signal to the notification unit 400. The notification unit 400 receives the signal and informs the user of the current material Or not. However, it is needless to say that the notification unit 400 according to the present invention is not limited to sound, and any method can be selected as long as the user can recognize the information using sight, hearing, tactile sense, or the like.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

100: Bobbin
200: Breakable device
300: Detector
310: Announcement connector
400:

Claims (3)

A three-dimensional printer material remaining amount determination device,
Bobbin;
At least one breakable device in the bobbin;
A detector connected to the breakable device by an electrical signal and capable of verifying breakage; Wow
And a notification unit connected to the detector to inform the user of the remaining amount of the filament.
The method according to claim 1,
Wherein the breakable device is a microfilm.
3. The method of claim 2,
Wherein the breakable devices are arranged at regular intervals to allow the user to determine the amount of the current remaining amount.

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