KR102518407B1 - Powder supply hoper unit for laser forming device - Google Patents

Abstract

The technology disclosed herein relates to a powder supply hopper for a laser molding apparatus for supplying powder used in the laser molding apparatus to a feeder, and the powder supply hopper for a laser molding apparatus disclosed herein discharges the powder accommodated through an outlet. A container portion and the container portion are selectively connected to a discharge inducing portion for inducing the powder discharged from the container portion, and a discharge blocking portion for opening or closing the outlet according to the movement of the container portion from the discharge inducing portion.
In the powder supply hopper for a laser molding device disclosed herein, separation of the storage unit from the discharge induction unit is detected by the movement detection unit of the discharge blocking unit 300, and the discharge port is closed by the shut-off valve of the discharge blocking unit. There is an effect of easily replacing another container part in which another material is accommodated without leaking.

Description

Powder supply hopper for laser forming device {POWDER SUPPLY HOPER UNIT FOR LASER FORMING DEVICE}

The technology disclosed herein relates to a powder supply hopper, and more particularly, to a powder supply hopper for a laser molding apparatus for supplying powder used in a laser molding apparatus to a feeder.

The technology disclosed herein relates to a powder supply management device for a laser molding device, and typically includes laser-aided direct metal manufacturing. Laser direct metal forming technology is a laser cladding technology that uses functional materials (metals, alloys, ceramics, etc.) and precisely welds them directly with a laser according to digital data of 3D subjects stored in a computer. Using , it is possible to manufacture 3-dimensional products or tools necessary for product production in a very short time. 3D shape information includes 3D CAD data, medical CT (Computer Tomography) and MRI (Magnetic Resonance Imaging) data, and digital data measured by a 3D scanner (3D Object Digitizing System). say A tool refers to a mass-produced mold required for product production such as dies or molds. These technologies produce metal prototypes, mass-produced molds, final products with complex shapes, and various tools in a short time incomparable to conventional processing methods such as cutting and casting using CNC (Computerized Numerical Control) and other processing machines. It can be manufactured, and it can be applied to restoration, remodeling, and repairing of molds using reverse engineering. The basic concept of implementing the physical shape from CAD data is similar to that of a general printer. Just as a printer uses document data files stored in a computer to produce a document by applying ink to a precise location on a two-dimensional paper plane, direct metal molding technology uses 3D CAD data to create a document at an exact location in a three-dimensional space. A three-dimensional physical shape is realized by forming functional materials in the required amount. These technologies are being developed as 3D printers, and have recently been commercialized in different directions according to the characteristics of materials such as plastic, ceramic, paper, and metal. In the laser direct metal forming technology, a two-dimensional plane is physically implemented using a laser cladding technology.

Conventional Korean Patent Publication No. 10-2017-0097420 (published on Aug. 28, 2017, "Amorphous metal manufacturing apparatus using a 3D metal printer and amorphous metal produced therefrom") discloses a laser beam to a specimen to generate a molten pool. a laser irradiation unit to; A powder supply unit for supplying metal powder to the generated molten pool, a control unit for controlling movement of the laser irradiation unit in response to the thickness and 3D CAD data of the metal melt in which the metal powder is melted, and rapid cooling of the metal melt into amorphous metal It includes a cooling section that The apparatus for manufacturing amorphous metal using the 3D metal printer may further include a photographing unit capturing an image of the molten metal and an image analyzing unit measuring a thickness of the molten metal by analyzing the photographed image. The control unit may calculate a tool path from the 3D CAD data, and move the laser irradiation unit along the calculated tool path when the thickness of the metal melt reaches a preset thickness. The cooling unit may quench the molten metal melted along the tool path to the amorphous metal to the predetermined thickness using an inert gas. The metal powder may include one or more of Ni, Ce, La, Gd, Mg, Y, Sm, Zr, Fe, Ti, Co, Al, Cu, Mo, Sn, Nb, and Si. The amorphous metal manufacturing apparatus using the 3D metal printer may further include a laser oscillation unit oscillating the laser beam and a laser concentrating unit condensing the oscillated laser beam. The laser irradiator may irradiate the focused laser beam to the specimen. The controller may control the movement of the laser emitter to maintain the focal length of the laser beam while the laser emitter irradiates the laser beam. The control unit may control an ejection speed of the metal powder supplied from the powder supply unit in response to a moving speed of the laser irradiator. Amorphous metal according to the present invention, a technology that can be manufactured by an amorphous metal manufacturing apparatus using the three-dimensional metal printer is disclosed.

The powder (powder) of the prior art should be controlled together with the laser irradiation unit. Representatively, in the conventional Korean Patent Publication No. 10-2016-0124710 (published on October 28, 2016, 'trough device for vibrating feeder'), In the vibration feeder trough device for moving the raw material supplied by the vibration feeder for supply and small supply and the vibration feeder for large supply installed in front of the vibration feeder for large supply and small supply to the front and inputting it to the metering unit, the lower surface The first bottom and the lower end seated on the upper surface of the vibratory feeder for large and small feed are combined with the left end of the first bottom and the first left side wall and the bottom are built by being combined with the right end of the first bottom The first right side wall and the lower end are configured to include a first rear wall erected by being coupled with the rear end of the first bottom portion, and the first bottom portion, the first left side wall, the first right side wall, and the first rear wall A supply part having an inner space surrounded by and having an open front and upper surface, and a large supply and small supply trough coupled with the front end of the first bottom part and extending forward, wherein the large supply and small supply trough has a rear end of the supply part The left and right edges are combined with the front end and the left and right edges gradually approach the center of the left and right while moving forward, so that the left and right widths are narrowed, and the rear end is combined with the front end of the width contraction. A trough for large and small supply composed of a small supply transfer unit and a large supply trough located below the large and small supply trough, the bottom of which is seated on the upper surface of the vibrating feeder for large supply Second bottom part A second left side wall and a lower end of which are built by combining with the left end of the second bottom portion and a second right side wall and lower portion of which are erected by combining with the right end of the second bottom portion are erected by combining with the rear end of the second bottom portion It is configured to include a second rear wall and has an inner space surrounded by the second bottom, the second left side wall, the second right side wall, and the second rear wall, and the front and top surfaces are open to the left edge of the width reduction portion. And a large supply trough for receiving the raw material flowing down from the right edge and discharging the raw material to the metering unit through the front edge of the second bottom part, wherein the front end of the small supply transfer part is the front end of the second bottom part A technique configured to be positioned earlier is disclosed.

In addition, as in conventional Korean Patent Publication No. 10-2016-0124710 (published on October 28, 2016, 'trough device for vibration feeder'), vibration feeders used in molding devices such as 3D printers are supplied through an object supply device Disclosed is a technology in which a received object to be supplied (powder, etc.) is moved to the outside by vibration so that the object to be supplied is evenly spread so that the amount discharged to the outside is constant according to the moving speed of the object to be moved.

In the conventional powder supply hopper for a laser molding device, in order to exchange a powder material, all the powder accommodated in the hopper must be exhausted and filled with powder of a different material, which is inconvenient.

Therefore, the technology disclosed in this specification is intended to solve the problem of providing a powder supply hopper for a laser molding apparatus that can be exchanged for powder of a different material only by exchanging the container part.

In one embodiment, a powder supply hopper for a laser shaping device is disclosed.

The powder supply hopper for a laser molding apparatus disclosed herein is selectively connected to a container portion 100 from which powder accommodated through a discharge port 110 is discharged, and the container portion 100 is discharged from the container portion 100. It includes a discharge guiding unit 200 for inducing the powder, and a discharge blocking unit 300 for opening or closing the outlet 110 according to the movement of the container 100 from the discharge guiding unit 200 .

The discharge blocking unit 300 includes a movement detecting unit 310 that operates according to the movement of the storage unit 100 and a blocking valve that opens or closes the outlet 110 according to the movement of the movement detecting unit 310. (320).

The movement detection unit 310 is provided inside the container unit 100 and provided on the detection pin 311 and the detection pin 311, the tip of which protrudes toward the discharge induction unit 200, when there is no external force. The detection pin 311 is provided in the return part 312 and the discharge guide part 200 so that the protruding state is maintained, provided at a position corresponding to the detection pin 311, and the container part 100 is provided in the discharge guide part. It may include a pin guide 313 that allows the sensing pin 311 to move when connected to (200).

The detection pin 311 is provided in the outlet 110, and the shut-off valve 320 is provided in the detection pin 311 to the outside of the outlet 110 or container unit 100 along the detection pin 311. It may be moved to the inside, provided in a size and shape capable of closing the outlet 110, and gradually narrowed toward the end of the sensing pin 311.

The outlet 110 is provided at a position off the center of the lower part of the container 100, and the discharge induction part 200 is provided in a circular tubular shape, based on the center of the lower part of the container part 100. (110).

The pin guide 313 is provided on a surface where the pin guide body 313a provided to close the discharge guide part 200 and the sensing pin 311 of the pin guide body 313a contact each other, and the container part 100 ) Discharged from the outlet 110 to the pin guide line 313b and the pin guide body 313a, which are inclined in the direction in which the sensing pin 311 faces, according to the movement path of the outlet 110 according to the rotational movement of It may include a pin guide passage (313c) through which the powder passes.

On the other hand, the pin guide 313 has a pin guide body 313a prepared to close the discharge guide part 200 and an upper part of a shape in which a vertical direction and a horizontal direction are connected with an upper part open to a side surface of the pin guide body 313a. Is provided as an open groove, but the horizontal direction is a rotation coupling groove 313d inclined in the direction toward which the sensing pin 311 faces, a pin inserted into the rotation coupling groove 313d on the lower surface of the container part 100 The guide protrusion 313e and the pin guide body 313a may include a pin guide passage 313c through which the powder discharged from the outlet 110 passes.

The discharge induction part 200 includes an induction body 210 provided in a circular tube shape, a container support part 220 provided to contact the lower surface of the container part 100 on one side of the induction body 210, and the container support part (220) It may include a rotation guide 230 that protrudes to be adjacent to the side of the container part 100 on the rim and stably supports the rotational movement of the container part 100.

The discharge guide part 200 of the powder supply hopper for the laser molding device further includes a gas passage 240 through which gas can pass through the container support part 220, and the lower surface of the container part 100 has the It faces the inside of the container part 100, but further includes a selection passage 120 provided to be connected to the gas passage 240 at a position where the detection pin 311 protrudes to the outside of the outlet 110. Gas may be selectively injected into the container part 100 according to the rotationally moved position of the container part 100 .

On the other hand, the discharge guide part 200 of the powder supply hopper for the laser molding device includes a gas passage 240 through which gas can pass, and the container part 100 is formed on the lower surface of the container part 100 inside. , but further comprising a selection passage 120 provided at a position connected to the gas passage 240 in a state in which the outlet 110 is closed, according to the rotationally moved position of the container part 100. Gas may be selectively injected into the container part 100 .

On the other hand, the pin guide 313 further includes a rotation coupling groove 313d having an open upper part connected to a vertical direction and a horizontal direction on a side surface of the pin guide body 313a, and the container part 100 A pin guide protrusion 313e inserted into the rotation coupling groove 313d is further included on the lower surface, and the pin guide line 313b is formed when the pin guide projection 313e is opened in the rotation coupling groove 313d. It is provided at a position where the detection pin 311 is directed at the time of being inserted upward, and the gas passage 240 is at the time when the pin guide protrusion 313e is inserted into the open top of the rotation coupling groove 313d. It may include being provided at a position connected to the selection passage 120.

In the powder supply hopper for laser molding apparatus disclosed herein, separation of the storage unit 100 from the discharge induction unit 200 is detected by the movement detection unit 310 of the discharge blocking unit 300, and the discharge blocking unit ( Since the discharge port 110 is closed by the shut-off valve 320 of 300, there is an effect that another container part 100 containing another material can be easily replaced without leakage of powder.

The powder supply hopper for laser molding apparatus disclosed herein can block the discharge of powder only by the rotational movement of the storage unit 100 through the discharge blocking unit 300 including the movement detection unit 310 and the shut-off valve 320. There are possible effects.

The powder supply hopper for laser molding apparatus disclosed herein is capable of selectively injecting gas into the container part 100 only by the rotational movement of the container part 100 through the gas passage 240 and the selection passage 120. It works.

The powder supply hopper for a laser molding apparatus disclosed herein has an effect of filtering out particles having a poor size through the filter 400 .

The foregoing provides only select concepts in a simplified form for those that are described in greater detail later. It is not intended to limit the key features or essential features of the claims or to limit the scope of the claims.

1 is a cross-sectional view showing an embodiment disclosed in this specification.
2 is a cross-sectional view showing another embodiment disclosed in this specification.
3 is a cross-sectional view showing another embodiment disclosed in this specification.
4 is a cross-sectional view showing another embodiment disclosed in this specification.
5 is a perspective view showing an embodiment of a pin guide disclosed in this specification.
6 is a cross-sectional view showing another embodiment of a pin guide disclosed in this specification.
7 is a cross-sectional view showing another embodiment disclosed in this specification.
8 is a diagram showing the operational relationship through the pin guide disclosed in this specification.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the drawings. Unless otherwise specified in the text, like reference numbers in the drawings indicate like elements. The exemplary embodiments described above in the detailed description, drawings and claims are not intended to be limiting, and other embodiments may be used, and other changes may be made without departing from the spirit or scope of the technology disclosed herein. A person skilled in the art may arrange, construct, combine, or design the components of the present disclosure, i.e., components generally described herein and illustrated in the drawings, in a variety of different configurations, all of which are obviously It will be readily appreciated that they are designed and form a part of this disclosure. In order to clearly express various layers (or films), regions, and shapes in the drawings, the width, length, thickness, or shape of components may be exaggerated.

When one component is referred to as “provided” with another component, the case where the one component is directly provided to the other component as well as the case where an additional component is interposed therebetween may be included.

When one component is referred to as “providing” another component, it may include a case where the one component is directly provided to the other component as well as a case where an additional component is interposed therebetween.

Since the description of the disclosed technology is only an embodiment for structural or functional description, the scope of rights of the disclosed technology should not be construed as being limited by the embodiment described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of rights of the disclosed technology includes equivalents capable of realizing the technical idea.

Expressions in the singular number should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “have” refer to an embodied feature, number, step, operation, component, part, or these. It is intended to specify that a combination exists, but it should be understood that it does not preclude the possibility of existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosed technology belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in this application.

Hereinafter, it will be described in more detail with reference to the accompanying drawings in this specification.

Figure 1 of the accompanying drawings in this specification is a cross-sectional view showing an embodiment disclosed in this specification. 2 is a cross-sectional view showing another embodiment disclosed in this specification. 3 is a cross-sectional view showing another embodiment disclosed in this specification. 4 is a cross-sectional view showing another embodiment disclosed in this specification. 5 is a perspective view showing an embodiment of a pin guide disclosed in this specification. 6 is a cross-sectional view showing another embodiment of a pin guide disclosed in this specification. 7 is a cross-sectional view showing another embodiment disclosed in this specification. 8 is a diagram showing the operational relationship through the pin guide disclosed in this specification.

A powder supply hopper for a laser molding apparatus referring to an embodiment disclosed in FIG. 1 includes a container part 100, a discharge guide part 200, and a discharge blocking part 300.

The storage unit 100 may be provided so that the received powder is discharged through the outlet 110 . In more detail, the container unit 100 is provided as a normal container to accommodate the powder. A conventional discharge port 110 is provided at the bottom of the container part 100 to discharge the accommodated powder.

On the other hand, the container portion 100 may be provided in a form gradually narrowing toward the bottom.

The discharge inducing unit 200 may be provided so that the container unit 100 is selectively connected to guide the powder discharged from the container unit 100 . In more detail, the discharge induction unit 200 may be provided in a tubular shape. The inner diameter of the discharge guide part 200 may be equal to or larger than the inner diameter of the outlet 110 of the container part 100 . The discharge guide part 200 is fixed by a separate support member (not shown) or the like. The discharge guide part 200 is provided to be connected to the discharge port 110 of the container part 100 .

The discharge blocking unit 300 may be provided to open or close the discharge port 110 according to the movement of the container unit 100 from the discharge guide unit 200 . The discharge blocker 300 may largely include a movement detector 310 and a shutoff valve 320.

The movement detection unit 310 may be provided to operate according to the movement of the container unit 100 . As an example with reference to 1, the movement detection unit 310 may provide a normal QR code on the side of the container unit 100. The movement detection unit 310 may include a conventional vision system that photographs the QR code and determines whether the QR code is recognized or not recognized. The movement detection unit 310 detects a movement in which the storage unit 100 is separated from or connected to the discharge induction unit 200 .

Meanwhile, the movement detection unit 310 may detect whether or not the container unit 100 rotates in the direction of the outlet 110 as a rotational axis.

The shutoff valve 320 opens or closes the outlet 110 according to the operation of the movement sensor 310 . As an example with reference to FIG. 1 , the shut-off valve 320 may include a cylinder provided toward the discharge port 110 inside the container part 100 . The piston of the shut-off valve 320 moves toward the outlet 110 according to the signal of the movement detector 310 . The shut-off valve 320 is provided with a size capable of blocking the outlet 110 of the piston, when the piston moves forward, the outlet 110 is closed, and when the piston moves backward, the outlet 110 can be opened. arranged so that

As another example with reference to FIG. 2 , the shut-off valve 320 moves according to the movement detector 310 and may be provided with a size capable of blocking the outlet 110 . The shut-off valve 320 may be provided with two or more grooves on the surface toward the direction of the discharge port 110 or the discharge guide part 200 . When the shut-off valve 320 moves forward toward the outlet 110, the groove is exposed outside the outlet 110 and the outlet 110 is closed. When the shut-off valve 320 moves backward, both ends of the groove are exposed to the inside of the container and the outside of the outlet 110, and the outlet 110 is opened.

As another example with reference to FIG. 3 , the shut-off valve 320 moves according to the movement detector 310 and may be provided with a size capable of blocking the outlet 110 . The shutoff valve 320 may be provided in a form gradually narrowing toward the direction toward which the discharge port 110 faces or toward the discharge induction unit 200 . When the shut-off valve 320 moves forward toward the outlet 110, the tapered end is exposed outside the outlet 110, and the outlet 110 is closed. When the shut-off valve 320 moves backward, the outlet port 110 is opened as the portion where the taper starts to become narrower is located inside the container.

The discharge blocking unit 300 described above is detected by the movement detection unit 310 of the discharge blocking unit 300 when the storage unit 100 is separated from the discharge inducing unit 200 . After that, the discharge port 110 is closed by the shutoff valve 320 of the discharge blocking unit 300 . In the container part 100, the discharge port 110 of which is closed by the discharge blocking part 300, the contained powder is not discharged. That is, other types of powder can be applied without loss of the accommodated powder or washing of the container part 100 .

The powder supply hopper for the laser molding device described above has an effect of simply replacing the type of powder used in the laser molding device by replacing only the container part 100 and connecting it to the discharge guide part 200.

A powder supply hopper for a laser molding apparatus referring to another embodiment disclosed in FIG. 2 includes a container part 100, a discharge guide part 200, and a discharge blocking part 300.

The container unit 100 may be implemented in the same manner as the container unit 100 described in the exemplary embodiment with reference to FIG. 1 .

The discharge induction unit 200 may be implemented in the same manner as the discharge induction unit 200 described in the exemplary embodiment with reference to FIG. 1 .

The discharge blocking unit 300 may be provided to open or close the discharge port 110 according to the movement of the container unit 100 from the discharge guide unit 200 . The discharge blocker 300 may largely include a movement detector 310 and a shutoff valve 320.

The movement detection unit 310 may largely include a detection pin 311, a return unit 312, and a pin guide 313.

The sensing pin 311 may be provided inside the container part 100 so that its end protrudes toward the discharge guide part 200 . In more detail, the sensing pin 311 may be provided in a rod shape. The sensing pin 311 penetrates the lower portion of the container part 100 and protrudes at its end. The sensing pin 311 can be freely moved through the container part 100 . The sensing pin 311 is provided at a different location from the outlet 110 .

The return part 312 may be provided on the sensing pin 311 to maintain the protruding state of the sensing pin 311 when there is no external force. The return part 312 may be provided with a normal spring. The return part 312 may be provided on one side of the sensing pin 311 that does not protrude from the container part 100 . The return part 312 pushes the sensing pin 311 so that it protrudes from the container part 100 . The return part 312 includes a case that winds the spring. The case may be provided by being fixed inside the container unit 100 . A sensing pin 311 is inserted into the case. A hole is provided on one side of the case in a direction in which the sensing pin 311 moves.

The pin guide 313 is provided in the discharge guide 200, and may be provided in a position corresponding to the detection pin 311. The pin guide 313 may be provided so that the sensing pin 311 moves when the container part 100 is connected to the discharge guide part 200 . In more detail, the pin guide 313 may be provided as an upper surface of the discharge induction unit 200 . At this time, it would be appropriate that the upper surface of the discharge guide part 200 is provided as an area in contact with the sensing pin 311 penetrating the container part 100.

In the movement detection unit 310 described above, when the storage unit 100 is connected to the discharge induction unit 200, the detection pin 311 is pressed by the pin guide 313. The pressed sensing pin 311 moves into the container part 100 while contracting the return part 312 . When the container part 100 is separated from the discharge guide part 200, the contracted return part 312 is restored and expanded while the sensing pin 311 protrudes out of the container part 100 again.

The shutoff valve 320 opens or closes the outlet 110 according to the operation of the movement sensor 310 . In more detail, the shut-off valve 320 may be provided at the outlet 110 . The shut-off valve 320 moves inside the outlet 110 according to the operation of the movement detector 310, but may be provided with a size capable of blocking the outlet 110. The shut-off valve 320 may be provided with two or more grooves on the surface toward the direction of the discharge port 110 or the discharge guide part 200 . The shutoff valve 320 is connected to the detection pin 311 of the movement detection unit 310 . The shutoff valve 320 moves according to the movement of the sensing pin 311 . When the shut-off valve 320 moves forward toward the outlet 110, the groove is exposed outside the outlet 110 and the outlet 110 is closed. When the shut-off valve 320 moves backward, both ends of the groove are exposed to the inside of the container and the outside of the outlet 110, and the outlet 110 is opened.

As another example with reference to FIG. 3 , the shut-off valve 320 may move according to the operation of the movement detector 310 and may be provided with a size capable of blocking the outlet 110 . The shutoff valve 320 may be provided in a form gradually narrowing toward the direction toward which the discharge port 110 faces or toward the discharge induction unit 200 . When the shut-off valve 320 moves forward toward the outlet 110, the tapered end is exposed outside the outlet 110, and the outlet 110 is closed. When the shut-off valve 320 moves backward, the outlet port 110 is opened as the portion where the taper starts to become narrower is located inside the container.

As another example with reference to FIG. 1 , the shut-off valve 320 moves according to the operation of the movement sensor 310 and may be provided with a size capable of blocking the outlet 110 . When the detection pin 311 of the movement detection unit 310 protrudes to the outside of the storage unit 100, the shut-off valve 320 is positioned at the outlet 110 to close the outlet 110. When the detection pin 311 of the movement detection unit is moved into the container part 100, the shut-off valve 320 is located inside the outlet 110 and opens the outlet 110.

The powder supply hopper for the laser molding device described above has an effect of simply replacing the type of powder used in the laser molding device by replacing only the container part 100 and connecting it to the discharge guide part 200.

Meanwhile, the movement detection unit 310 may detect whether or not the storage unit 100 rotates in the direction of the outlet 110 as a rotational axis. When the container part 100 rotates, the pin guide 313 is provided on the surface in contact with the sensing pin 311, and the sensing pin ( 311) may include a pin guide line 313b that is obliquely recessed in the direction toward which it faces.

In the movement detection unit 310 including the pin guide line 313b, when the storage unit 100 is connected to the discharge induction unit 200, the detection pin 311 is pressed by the pin guide 313. The pressed sensing pin 311 moves into the container part 100 while contracting the return part 312 . When the container part 100 rotates and moves, the sensing pin 311 is moved to the pin guide line 313b and the contracted return part 312 gradually expands, bringing the sensing pin 311 back to the outside of the container part 100. protrudes out When the container part 100 is rotated in the opposite direction, the detection pin 311 is moved to the pin guide line 313b and the return part 312 gradually contracts, and the detection pin 311 is moved back to the inside of the container part 100. is moved to

The powder supply hopper for the laser molding apparatus including the pin guide line 313b has an effect of blocking the discharge of powder only by the rotational movement of the container part 100 .

On the other hand, the discharge guide part 200 of the powder supply hopper for laser molding apparatus considering the rotational movement of the container part 100 according to another embodiment with reference to FIG. 7 largely includes the guide body 210 and the container support part 220. can include

The induction body 210 may be provided in a circular tubular shape.

The container support part 220 may be provided to come into contact with the lower surface of the container part 100 on one side of the induction body 210 . The container support part 220 can stably support the container part 100 .

The discharge guiding unit 200 including the induction body 210 and the container support 220 introduces and discharges the powder discharged from the container 100 into the induction body 210 . The discharge guide part 200 supports the container part 100 so that the lower surface of the container part 100 is in contact with the upper part of the container support part 220 so that the induction body 210 and the outlet 110 are connected to each other stably.

Furthermore, the discharge induction unit 200 may further include a rotation guide 230 provided to protrude from the upper surface of the container support unit 220 so as to be adjacent to the side surface of the container unit 100 . In more detail, the rotation guide 230 may be provided on the rim of the container support 220 . The rotation guide 230 guides the side of the container part 100 . The rotation guide 230 stably supports the container part 100 by preventing it from being separated from the discharge guide part 200 during rotation of the container part 100 .

The container support part 220 may further include the pin guide line 313b described above.

On the other hand, the pin guide 313 of the powder supply hopper for the laser molding apparatus considering the rotational movement of the container part 100 according to another embodiment with reference to FIG. 3 is largely a pin guide body 313a and a pin guide line 313b. ) and a pin guide passage 313c.

Pin guide body (313a) may be provided to close the discharge guide portion (200). In more detail, the pin guide body (313a) is provided in a size and shape capable of blocking the inner space of the discharge induction unit (200). The pin guide body 313a is provided in a size that can come into contact with the sensing pin 311 around the outlet 110. The pin guide body 313a may be provided in a circular shape having a radius of a distance from the outlet 110 to the sensing pin 311 .

The pin guide line 313b is provided on the surface of the pin guide body 313a in contact with the sensing pin 311, and the sensing pin 311 It may be provided in a recessed form so as to be inclined in the direction toward which it is directed.

Meanwhile, the pin guide lines 313b may be continuously provided so that the inclined directions are opposite to each other.

Pin guide passage (313c) is provided with a hole in the pin guide body (313a). The pin guide passage 313c allows the powder discharged from the discharge port 110 to pass through and move to the discharge guide part 200.

The powder supply hopper for laser molding apparatus including the pin guide body 313a, the pin guide line 313b, and the pin guide passage 313c has an effect of blocking the discharge of powder only by the rotational movement of the container part 100. there is.

On the other hand, referring to FIG. 6, the pin guide 313 including the pin guide body 313a described above replaces the pin guide line 313b and is vertically open on the side of the pin guide body 313a. It can be implemented as a rotation coupling groove (313d) provided as a groove in which the direction and the transverse direction are connected. Grooves in the horizontal direction may be inclined in a downward direction of the pin guide body 313a. At this time, the pin guide 313 may further include a pin guide protrusion 313e inserted into the rotation coupling groove 313d on the lower surface of the container part 100 . When the container part 100 is connected to the discharge guide part 200, the pin guide protrusion 313e is inserted into the longitudinal groove of the rotation coupling groove 313d. At this time, when the container part 100 rotates and moves, the pin guide protrusion 313e moves along the inclined horizontal groove, so that the container part 100 moves in the direction of the discharge guide part 200. The sensing pin 311 is moved into the container part 100 while pressing the upper surface of the pin guide body 313a by the container part 100 moved to the discharge guide part 200 .

Furthermore, the rotation coupling groove 313d may be provided on the surface of the discharge guide part 200 .

A powder supply hopper for a laser molding apparatus referring to another embodiment disclosed in FIG. 4 includes a container part 100, a discharge guide part 200, and a discharge blocking part 300.

The container part 100 is carried out in the same way as the container part 100 described in the embodiment with reference to FIG. 1, but the outlet 110 may be provided at a position off the center of the lower part of the container part 100 .

For example, the discharge induction unit 200 is carried out in the same manner as the discharge induction unit 200 described in the embodiment with reference to FIG. can be provided with In more detail, the radius of the discharge guide part 200 is provided to be equal to or greater than the distance value from the center of the lower part of the container part 100 to the discharge port 110. That is, even when the container part 100 rotates, the discharge port 110 is always connected to the discharge guide part 200.

As another example with reference to FIG. 7 , the discharge induction unit 200 may include a largely induction body 210 and a container support unit 220 .

The induction body 210 may be provided in a circular tubular shape.

The container support part 220 may be provided to come into contact with the lower surface of the container part 100 on one side of the induction body 210 . The container support part 220 can stably support the container part 100 .

The discharge guiding unit 200 including the induction body 210 and the container support 220 introduces and discharges the powder discharged from the container 100 into the induction body 210 . The discharge guide part 200 supports the container part 100 so that the lower surface of the container part 100 is in contact with the upper part of the container support part 220 so that the induction body 210 and the outlet 110 are connected to each other stably.

Furthermore, the discharge induction unit 200 may further include a rotation guide 230 provided to protrude from the upper surface of the container support unit 220 so as to be adjacent to the side surface of the container unit 100 . In more detail, the rotation guide 230 may be provided on the rim of the container support 220 . The rotation guide 230 guides the side of the container part 100 . The rotation guide 230 stably supports the container part 100 by preventing it from being separated from the discharge guide part 200 during rotation of the container part 100 .

The discharge blocking unit 300 may be provided to open or close the discharge port 110 according to the movement of the container unit 100 from the discharge guide unit 200 . The discharge blocking unit 300 may include a movement detection unit 310 and a shutoff valve 320 as shown in FIG. 4 or 5 .

The movement detection unit 310 may largely include a detection pin 311, a return unit 312, and a pin guide 313.

The sensing pin 311 may be provided inside the container part 100 so that its end protrudes toward the discharge guide part 200 . In more detail, the sensing pin 311 may be provided in a rod shape. The sensing pin 311 may be provided in the outlet 110 . The sensing pin 311 can move freely through the outlet 110 .

The return part 312 may be provided on the sensing pin 311 to maintain the protruding state of the sensing pin 311 when there is no external force. The return part 312 may be provided with a normal spring. The return part 312 may be provided on one side of the sensing pin 311 that does not protrude from the container part 100 . The return part 312 pushes the sensing pin 311 so that it protrudes to the bottom of the container part 100 through the outlet 110 . The return part 312 includes a case that winds the spring. The case may be provided by being fixed inside the container unit 100 .

The pin guide 313 is provided in the discharge guide 200, and may be provided in a position corresponding to the detection pin 311. The pin guide 313 may be provided so that the sensing pin 311 moves when the storage unit 100 is moved. In more detail, the pin guide 313 may include a pin guide body 313a, a pin guide line 313b, and a pin guide passage 313c.

Pin guide body (313a) may be provided to close the discharge guide portion (200). In more detail, the pin guide body (313a) is provided in a size and shape capable of blocking the inner space of the discharge induction unit (200). The pin guide body 313a is provided in a size that can come into contact with the sensing pin 311 around the outlet 110. The pin guide body 313a may be provided in a circular shape having a radius of a distance from the outlet 110 to the sensing pin 311 .

The pin guide line 313b is provided on the surface of the pin guide body 313a in contact with the sensing pin 311, and the sensing pin 311 It may be provided in a recessed form so as to be inclined in the direction toward which it is directed.

Meanwhile, the pin guide lines 313b may be continuously provided so that the inclined directions are opposite to each other.

Pin guide passage (313c) is provided with a hole in the pin guide body (313a). The pin guide passage 313c allows the powder discharged from the discharge port 110 to pass through and move to the discharge guide part 200.

In the above-described movement detection unit 310, when the container unit 100 rotates, the sensing pin 311 is moved to the pin guide line 313b while the contracted return unit 312 gradually expands, and the sensing pin ( 311) protrudes out of the container part 100 again. When the container part 100 is rotated in the opposite direction, the detection pin 311 is moved to the pin guide line 313b and the return part 312 gradually contracts, and the detection pin 311 is moved back to the inside of the container part 100. is moved to

On the other hand, the pin guide 313 shown in FIG. 5 or 6 may further include a rotation coupling groove 313d provided as a groove in which a longitudinal direction and a transverse direction are connected with an open top on the side of the pin guide body 313a. there is. Grooves in the horizontal direction may be inclined in a downward direction of the pin guide body 313a. At this time, the pin guide 313 may further include a pin guide protrusion 313e inserted into the rotation coupling groove 313d on the lower surface of the container part 100 . When the container part 100 is connected to the discharge guide part 200, the pin guide protrusion 313e is inserted into the longitudinal groove of the rotation coupling groove 313d. At this time, when the container part 100 rotates and moves, the pin guide protrusion 313e moves along the inclined horizontal groove, so that the container part 100 moves in the direction of the discharge guide part 200. The sensing pin 311 is moved into the container part 100 while pressing the upper surface of the pin guide body 313a by the container part 100 moved to the discharge guide part 200 . The pin guide 313 rotates the container part 100 through the rotation coupling groove 313d and the pin guide protrusion 313e, but separates only at a specific position.

Furthermore, when the pin guide protrusion 313e is inserted into the longitudinal groove in which the top of the rotation coupling groove 313d is open, that is, when the container part 100 is connected to the discharge guide part 200, the discharge port ( 110), the inclination of the pin guide line 313b starts or the end of the inclination is located on the upper surface of the pin guide body 313a in contact with the detection pin 311 or the shut-off valve 320. The position of the pin guide line (313b) is able to select the opening and closing of the discharge port (110) in the course of moving the pin guide protrusion (313e) is inserted into the rotation coupling groove (313d). Preferably, as shown in FIG. 5, it would be preferable that a pin guide line 313b is provided on the top of the groove in the horizontal direction of the rotation coupling groove 313d corresponding to the path along which the container part 100 rotates. At this time, according to the length of the pin guide line (313b) or the length of the rotation coupling groove (313d), the pin guide protrusion (313e) is caught in the rotation coupling groove (313d), according to the rotational movement distance of the container part 100, the discharge port Closed or open of (110) will be determined.

The pin guide 313 including the rotation coupling groove 313d and the pin guide protrusion 313e allows the container portion 100 to rotate freely while allowing the container portion 100 and the discharge guide portion 200 to be stably connected. do.

The shutoff valve 320 opens or closes the outlet 110 according to the operation of the movement sensor 310 . In more detail, the shutoff valve 320 may be provided on the sensing pin 311 . The shut-off valve 320 may be moved to the outside of the outlet 110 or inside the container 100 along the sensing pin 311 . The shut-off valve 320 may be provided in a size and shape capable of closing the outlet 110 .

On the other hand, the shutoff valve 320 may be provided in a form gradually narrowing toward the end of the sensing pin 311, may be provided to further include a groove on the surface, and the moving distance or size of the shutoff valve 320 Alternatively, depending on the form, it may be variously implemented in the embodiment shown in FIGS. 1, 2, and 3.

On the other hand, according to the position of the detection pin 311 when the container part 100 is connected to the discharge guide part 200, when the container part 100 and the discharge guide part 200 are connected, closing or opening of the discharge port 110 is determined. can In more detail, when the position of the sensing pin 311 is located at the end point of the pin guide line 313b, when the container part 100 is connected to the discharge guide part 200, the discharge port 110 is closed. remain in state When the position of the sensing pin 311 is the starting point of the pin guide line 313b or the upper surface of the pin guide body 313a where the pin guide line 313b is not located, the container part 100 is the discharge guide part 200 When connected to, the outlet 110 is in an open state.

Referring to another embodiment disclosed in FIG. 4, the powder supply hopper for the laser molding device is a discharge blocking unit when the container unit 100 is moved by the movement detection unit 310 and separated from the discharge guide unit 200. Since (300) closes the outlet 110, only the container part 100 can be easily replaced without leakage of the powder.

The powder supply hopper for laser molding apparatus referring to another embodiment disclosed in FIG. 4 has an effect of controlling the discharge of powder only by the rotational movement of the container part 100 by the pin guide line 313b.

The powder supply hopper for the laser molding apparatus described above with reference to FIG. 7 may further include a gas passage 240 and a selection passage 120 .

The gas passage 240 may be provided in the discharge guide part 200 . The gas passage 240 may be provided as a through hole through which gas providing pressure inside the container part 100 may pass. In more detail, a gas passage 240 may be provided in the container support 220 .

Meanwhile, the gas passage 240 may be provided in the induction body 210 .

The selection passage 120 may be provided in the container part 100 . The selection passage 120 allows the gas passing through the gas passage 240 to flow into the container part 100 . The selection passage 120 may be provided as a through hole on the lower surface of the container part 100 toward the inside of the container part 100 . The selection passage 120 may be provided at a position connected to the gas passage 240 when the outlet 110 is closed. In more detail, one side of the gas passage 240 may be provided to come into contact with the lower part of the container part 100 . One side of the selection passage 120 is connected to the inside of the container part 100 while the other side is connected to the gas passage 240. The position of the selection passage 120 is changed according to the rotational movement of the container part 100 . That is, the gas passage 240 and the selection passage 120 are selectively connected according to the rotational movement of the container part 100 .

The powder supply hopper for the laser molding apparatus including the gas passage 240 and the selection passage 120 allows gas to be selectively injected into the container 100 according to the rotationally moved position of the container 100. it is prepared When the gas is injected when the outlet 110 is open, the powder inside the container part 100 is pushed out, and when the gas is injected when the outlet 110 is closed, the inside of the container part 100 It is possible to organize the powder accumulated in an irregular shape into a uniform form to a certain extent.

On the other hand, the selection passage 120 may be provided to protrude from the bottom of the container part 100, and the end portion of the gas passage 240 on the upper surface of the container support part 220 has a groove into which the selection passage 120 is inserted. can include The groove into which the selection passage 120 is inserted may be formed along a movement path of the selection passage 120 that moves along with the rotational movement of the container part 100 . A normal sealing may be further included around the groove into which the selection passage 120 is inserted.

On the other hand, in the powder supply hopper for the laser molding apparatus including the container support part 220, the container support part 220 of the discharge guide part 200 further includes a gas passage 240 through which gas can pass, and the container part ( A selection passage 120 is further formed on the lower surface of the container part 100 to be connected to the gas passage 240 at a position where the sensing pin 311 protrudes to the outside of the outlet 110 while facing the inside of the container part 100. can include

On the other hand, in the powder supply hopper for the laser molding device including the rotation coupling groove 313d and the pin guide projection 313e, the pin guide line 313b is the pin guide projection 313e and the open top of the rotation coupling groove 313d. It is provided at a position where the sensing pin 311 at the time of being inserted is directed, and the gas passage 240 is the selection passage 120 at the time when the pin guide protrusion 313e is inserted into the open top of the rotation coupling groove 313d. It may be provided in a position connected to. Alternatively, when the outlet 110 is opened, the gas passage 240 and the selection passage 120 may be connected.

Meanwhile, the powder supply hopper for the laser molding apparatus described above may further include a filter 400 . Filter 400 may be provided with a normal mesh (mash) network. The filter 400 filters out particles having an undesirable size of the powder. The filter 400 passes through the side of the guide body 210 of the discharge guide unit 200 and is located below the pin guide 313.

From the foregoing, it will be understood that various embodiments of the present disclosure have been described for illustrative purposes, and that there are various modifications possible without departing from the scope and spirit of the present disclosure. And the various embodiments being disclosed are not intended to limit the disclosed spirit, and the true spirit and scope will be presented from the following claims.

100: container part
110: outlet
120: selection passage
200: discharge induction unit
210: induction body
220: container support
230: rotation guide
240: gas passage
300: discharge blocking unit
310: movement detection unit
311: detection pin
312: return unit
313: pin guide
313a: pin guide body
313b: pin guide line
313c: pin guide passage
313d: rotation coupling groove
313e: pin guide protrusion
320: shut-off valve
400: filter

Claims (11)

A container unit through which the received powder is discharged through the discharge port;
a discharge guide unit that is selectively connected to the container unit to induce the powder discharged from the container unit;
A discharge blocker for opening or closing the discharge port according to the movement of the storage unit from the discharge induction unit; includes,
The discharge blocker
a movement detection unit that operates according to the movement of the storage unit; and
A shut-off valve for opening or closing the outlet according to the operation of the movement sensor; includes,
the movement sensor
a sensing pin provided inside the container and having an end protruding toward the discharge guide;
a return unit provided on the sensing pin to maintain the protruding state of the sensing pin when there is no external force; and
A pin guide provided in the discharge guide part, provided at a position corresponding to the detection pin, so that the detection pin moves when the container part is connected to the discharge guide part,
The sensing pin is provided in the outlet,
The shut-off valve is provided on the sensing pin and moves along the sensing pin to the outside of the outlet or the inside of the container, is provided in a size and shape capable of closing the outlet, and gradually narrows toward the end of the sensing pin. including those prepared by
The outlet is provided at a position off the center of the lower part of the container,
The discharge guide portion is provided in a circular tubular shape, and is provided with a size to accommodate the discharge port based on the center of the lower portion of the container portion,
The pin guide
a pin guide body provided to close the discharge guide part;
a pin guide line provided on a surface of the pin guide body in contact with the sensing pin and inclined in a direction toward which the sensing pin is directed along a moving path of the outlet according to the rotational movement of the container unit; and
A powder supply hopper for a laser molding apparatus including a pin guide passage through which the powder discharged from the outlet passes through the pin guide body. A container unit through which the received powder is discharged through the discharge port;
a discharge guide unit that is selectively connected to the container unit to induce the powder discharged from the container unit;
A discharge blocker for opening or closing the discharge port according to the movement of the storage unit from the discharge induction unit; includes,
The discharge blocker
a movement detection unit that operates according to the movement of the storage unit; and
A shut-off valve for opening or closing the outlet according to the operation of the movement sensor; includes,
the movement sensor
a sensing pin provided inside the container and having an end protruding toward the discharge guide;
a return unit provided on the sensing pin to maintain the protruding state of the sensing pin when there is no external force; and
A pin guide provided in the discharge guide part, provided at a position corresponding to the detection pin, so that the detection pin moves when the container part is connected to the discharge guide part,
The sensing pin is provided in the outlet,
The shut-off valve is provided on the sensing pin and moves along the sensing pin to the outside of the outlet or the inside of the container, is provided in a size and shape capable of closing the outlet, and gradually narrows toward the end of the sensing pin. including those prepared by
The outlet is provided at a position off the center of the lower part of the container,
The discharge guide portion is provided in a circular tubular shape, and is provided with a size to accommodate the discharge port based on the center of the lower portion of the container portion,
The pin guide
a pin guide body provided to close the discharge guide part;
A rotation coupling groove formed on a side surface of the pin guide body with an open upper portion connected to a vertical direction and a horizontal direction, the horizontal direction being inclined in a direction toward which the sensing pin is directed;
a pin guide protrusion provided on a lower surface of the container portion and inserted into the rotation coupling groove; and
A powder supply hopper for a laser molding apparatus including a pin guide passage through which the powder discharged from the outlet passes through the pin guide body. A container unit through which the received powder is discharged through the discharge port;
a discharge guide unit that is selectively connected to the container unit to induce the powder discharged from the container unit;
Including; a discharge blocking unit for opening or closing the discharge port according to the movement of the storage unit from the discharge induction unit;
The discharge guide part
Induction body provided in the form of a circular tube;
a container support provided on one side of the induction body to come into contact with a lower surface of the container; and
a rotation guide protruding from the rim of the container support portion to be adjacent to the side surface of the container portion to stably support rotational movement of the container portion;
A powder supply hopper for a laser molding device comprising a. According to claim 1,
The discharge guide part
Induction body provided in the form of a circular tube;
a container support provided on one side of the induction body to come into contact with a lower surface of the container; and
a rotation guide protruding from the rim of the container support portion to be adjacent to the side surface of the container portion to stably support rotational movement of the container portion;
A powder supply hopper for a laser molding device comprising a. According to claim 2,
The discharge guide part
Induction body provided in the form of a circular tube;
a container support provided on one side of the induction body to come into contact with a lower surface of the container; and
a rotation guide protruding from the rim of the container support portion to be adjacent to the side surface of the container portion to stably support rotational movement of the container portion;
A powder supply hopper for a laser molding device comprising a. delete delete delete delete A container unit through which the received powder is discharged through the discharge port;
a discharge guide unit that is selectively connected to the container unit to induce the powder discharged from the container unit;
Including; a discharge blocking unit for opening or closing the discharge port according to the movement of the storage unit from the discharge induction unit;
The discharge guide part includes a gas passage through which gas can pass,
The container part further includes a selection passage provided on a lower surface toward the inside of the container part and connected to the gas passage in a state in which the outlet is closed,
A powder supply hopper for a laser molding apparatus in which the gas can be selectively injected into the container part according to the rotationally moved position of the container part. delete

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