KR102254493B1 - Printer for multi material lamination - Google Patents

Abstract

The present invention relates to an apparatus for preventing nozzle drying of a printer for printing multiple types of materials, and more particularly, to an apparatus for preventing nozzle drying of a printer for printing multiple types of materials for preventing a nozzle clogging phenomenon due to hardening of a material at a nozzle discharge port. The present invention is a substrate unit provided to print the material discharged on the upper portion; A first discharge unit provided above the substrate unit and configured to discharge a first material to the substrate unit; A second discharge unit provided on one side of the first discharge unit and provided to discharge a second material to the substrate unit; And a cap unit coupled to the first discharging unit and the second discharging unit to prevent the material of the discharging port from hardening.

Description

Nozzle drying prevention device for printing multiple materials {PRINTER FOR MULTI MATERIAL LAMINATION}

The present invention relates to an apparatus for preventing nozzle drying of a printer for printing multiple types of materials, and more particularly, to an apparatus for preventing nozzle drying of a printer for printing multiple types of materials for preventing a nozzle clogging phenomenon due to hardening of a material at a nozzle discharge port.

In general, a 3D printer refers to a device that prints a three-dimensional shape of a real object, that is, a sculpture as it is based on a three-dimensional drawing made by a computer program. It is classified into Deposition Modeling) method, DLP (Digital Light Processing) method using liquid raw materials, and SLS (Selective Laser Sintering) method using powder type raw materials.

In the case of a DLP type 3D printer, it is easy to implement a fine shape and has been widely used in recent years, and the raw material of the liquid used in this DLP type 3D printer is a photocurable resin, a material that is cured by ultraviolet or visible light. have.

In addition, the DLP type 3D printer is divided into a bottom-up method for completing a printout from bottom to top and a top-down method for completing a printout from top to bottom according to the mechanical structure.

Such a DLP type 3D printer has a single resin tank, and as it is molded using only the resin contained in the resin tank, there is a problem in that it is not possible to implement various 3D shapes using a plurality of different resins.

Accordingly, in recent years, development of a printer capable of outputting a plurality of materials by having a plurality of nozzle units has been made.

However, when a plurality of nozzle units are used, air is introduced into the nozzle unit waiting to be used and the material is hardened, resulting in a problem of clogging the nozzle.

Korean Patent Registration No. 10-1593488

An object of the present invention for solving the above problems is to provide an apparatus for preventing nozzle drying of a printer for outputting a variety of materials to prevent the occurrence of nozzle clogging due to the hardening of the material of the nozzle portion discharge port.

The technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

The configuration of the present invention for achieving the above object comprises: a substrate unit provided to print the material discharged thereon; A first discharge unit provided above the substrate unit and configured to discharge a first material to the substrate unit; A second discharge unit provided on one side of the first discharge unit and provided to discharge a second material to the substrate unit; And a cap unit coupled to the first discharging unit and the second discharging unit to prevent the material of the discharging port from hardening.

In an embodiment of the present invention, the first discharging unit comprises: a first discharging body forming a body and supplying a first material; A first nozzle part coupled to a lower portion of the first discharge body part and discharging the first material; And a first detachable part coupled to a lower portion of the first discharge body part and provided to be detachably detachable from the cap unit, wherein the first detachable part includes the cap unit blocking the discharge port of the first nozzle part to prevent the first nozzle. It may be characterized in that it is provided to prevent the first material in the unit from hardening.

In an embodiment of the present invention, the first detachable unit includes: a detachable body coupled to a lower portion of the first discharge body and extending toward the first nozzle unit; A curved body formed at one end of the detachable body and formed in a curved surface to surround a part of the circumference of the first nozzle part; And a detachable magnetic substance formed on a lower surface of the detachable body and formed in a plurality along the circumference of the curved body.

In an embodiment of the present invention, the second discharge unit comprises: a second discharge body forming a body and supplying a second material; A second nozzle unit coupled to a lower portion of the second discharge body and discharging the second material; And a second detachable part coupled to a lower portion of the second discharge body part, wherein the cap unit is detachably provided, and wherein the second detachable part includes the cap unit blocking the discharge port of the second nozzle part to prevent the second nozzle. It may be characterized in that it is provided to prevent the second material from hardening in the part.

In an embodiment of the present invention, the cap unit may include a first cap body attached to a lower portion of the first detachable body and provided to have a diameter corresponding to the curved body.

In an embodiment of the present invention, the cap unit further comprises a cap magnetic body provided on an upper surface side of the first cap body and provided at a distance corresponding to the detachable magnetic body along the circumferential direction of the first cap body It can be characterized by that.

In an embodiment of the present invention, the cap unit is formed to extend below the first cap body, has a diameter smaller than that of the first cap body, and is formed to block the discharge port of the first nozzle part. Cap body; And a third cap body extending below the second cap body and having a larger diameter than the second cap body.

In an embodiment of the present invention, further comprising: a docking unit provided on one side of the substrate unit, wherein the docking unit includes: a first docking part provided to attach and detach the cap unit to the first discharge unit; And a second docking part provided to attach and detach the cap unit to the second discharge unit.

In an embodiment of the present invention, the first docking unit may include a docking body coupled to one side of the substrate unit and provided; A first docking groove formed in the docking body and formed of a curved groove with one side open so that the first cap body can be inserted; A second docking groove formed below the first docking groove and formed of a curved groove having an open side thereof to allow the second cap body to be inserted; And a third docking groove formed under the second docking groove and formed of a curved groove having one side open so that the third cap body can be inserted, wherein the second docking groove is the third cap body It may be characterized in that it is provided to be formed to be smaller in diameter compared to.

In an embodiment of the present invention, the first docking groove, the second docking groove, and the third docking groove have a diameter larger than that of the first cap body, the second cap body, and the third cap body, respectively. It can be characterized by that.

The effect of the present invention according to the configuration as described above can prevent the occurrence of nozzle clogging by covering the cap unit on the nozzle portion of the discharging unit that is not in use.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view of an apparatus for preventing nozzle drying of a printer for outputting a variety of materials according to an embodiment of the present invention.
2 is a perspective view of a first discharge unit and a second discharge unit according to an embodiment of the present invention.
3 is a side view of a first discharge unit according to an embodiment of the present invention.
4 is a perspective view of a first detachable part according to an embodiment of the present invention.
5 is a perspective view of a cap unit according to an embodiment of the present invention.
6 is a perspective view showing a cap unit attached to a first detachable part according to an embodiment of the present invention.
7 is a perspective view of a docking unit according to an embodiment of the present invention.
8 is a perspective view showing a process of inserting a cap unit into a docking unit according to an embodiment of the present invention.
9 is a perspective view showing a state in which a cap unit is inserted into a first docking part according to an embodiment of the present invention.
10 is an exemplary operation diagram showing a process of attaching a cap unit to a first discharge unit according to an embodiment of the present invention.
11 is an exemplary operation diagram showing a process of detaching a cap unit from a first discharge unit according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and therefore is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, bonded)" with another part, it is not only "directly connected", but also "indirectly connected" with another member in the middle. "Including the case. In addition, when a part "includes" a certain component, this means that other components may be further provided, not excluding other components, unless specifically stated to the contrary.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an apparatus for preventing nozzle drying of a printer for printing a variety of materials according to an embodiment of the present invention, and FIG. 2 is a perspective view of a first discharging unit and a second discharging unit according to an embodiment of the present invention, and FIG. Is a side view of a first discharge unit according to an embodiment of the present invention.

As shown in FIGS. 1 to 3, the nozzle drying prevention apparatus 1000 of a printer for printing a variety of materials includes a substrate unit 1100, a first discharge unit 1200, a second discharge unit 1300, and a cap unit 1400. And a docking unit 1500.

The substrate unit 1100 may be provided to print the material discharged thereon, and may be provided in the form of a plate having a flat top surface.

A material may be directly discharged on the upper portion of the substrate unit 1100, or a separate substrate may be provided on the upper portion of the substrate unit 1100 and may be provided so that the material is discharged to the substrate.

The first discharge unit 1200 is provided to discharge a first material to the substrate unit 1100, a first discharge body part 1210, a first nozzle part 1220, a first detachable part 1230 It may include.

The first discharge main body 1210 forms the body of the first discharge unit 1200 and may be provided to store a first material and supply it to the first nozzle part 1220.

In addition, it may be provided to be elevated in the height direction of the first discharge body part 1210 or movable in the up, down, left, and right directions on a plane.

The first nozzle part 1220 may be coupled to a lower portion of the first discharge body part 1210 and may be provided to discharge the first material toward the substrate unit 1100.

The first detachable part 1230 may be coupled to a lower portion of the first discharge body 1210, and may be coupled to one side of the first nozzle part 1220. In addition, the first detachable part 1230 may be provided such that the cap unit 1400 is detachable. That is, in the first detachable part 1230, the cap unit 1400 blocks the discharge port of the first nozzle part 1220 so that the first material in the first nozzle part 1220 hardens, causing a nozzle clogging phenomenon. This can be prevented from occurring.

4 is a perspective view of a first detachable part according to an embodiment of the present invention.

When the first detachable part 1230 is described in more detail with reference to FIG. 4, the first detachable part 1230 may include a detachable body 1231, a curved body 1232, and a detachable magnetic body 1233. .

The detachable body 1231 is provided by being coupled to the lower portion of the first discharge body 1210 and may form a body of the first detachable part 1230.

More specifically, the detachable body 1231 may be coupled to a lower portion of the first discharge body 1210, and may be coupled to one side of the first nozzle 1220. In addition, one end of the detachable body 1231 may extend toward the first nozzle part 1220.

The curved body 1232 may be formed at one end of the detachable body 1231 and may have a curved surface to surround a part of the circumference of the first nozzle part 1220.

Specifically, the curved body 1232 may be formed at one end of the detachable body 1231 in the form of a circular groove with one side open around the first nozzle part 1220.

The detachable magnetic body 1233 is formed on the lower surface of the detachable body 1231, and may be formed in plural along the circumference of the curved body 1232.

Specifically, the detachable magnetic body 1233 may be made of a magnetic material exhibiting magnetism, and may be formed at predetermined intervals along the circumference of the curved body.

Again, referring to FIGS. 1 to 3, the second discharge unit 1300 is provided on one side of the first discharge unit 1200, and may be provided to discharge a second material to the substrate unit 1100. have.

The second discharge unit 1300 is provided to discharge a second material to the substrate unit 1100, and a second discharge body part 1310, a second nozzle part 1320, and a second detachable part 1330 It may include.

The second discharge body part 1310 forms the body of the second discharge unit 1300 and may be provided to store a second material and supply it to the second nozzle part 1320.

Here, the first material and the second material may be different materials.

The second nozzle part 1320 may be coupled to a lower portion of the second discharge body part 1310 and may be provided to discharge the second material toward the substrate unit 1100.

The second detachable part 1330 may be coupled to a lower portion of the second discharge body 1310, and may be coupled to one side of the second nozzle part 1320. In addition, the second detachable part 1330 may be provided so that the cap unit 1400 is detachable. That is, in the second detachable part 1330, the cap unit 1400 blocks the discharge port of the second nozzle part 1320 so that the second material in the second nozzle part 1320 hardens, causing a nozzle clogging phenomenon. This can be prevented from occurring.

The detailed configuration of the second detachable unit 1330 is substantially the same as that of the first detachable unit 1230, so a detailed description thereof will be omitted.

5 is a perspective view of a cap unit according to an embodiment of the present invention, and FIG. 6 is a perspective view showing a cap unit attached to a first detachable unit according to an embodiment of the present invention.

5 and 6, the cap unit 1400 is coupled to the first discharge unit 1200 and the second discharge unit 1300 to prevent the material from hardening at the discharge port side of the nozzle part. It includes a first cap body 1410, a magnetic cap 1420, a second cap body 1430, and a third cap body 1440.

The first cap body 1410 is provided to be attached to the lower portion of the first detachable body 1231 and may be formed in a circular shape having a diameter corresponding to the curved body 1232. In addition, the first cap body 1410 may have a hollow inner side so that the first nozzle unit 1220 may be inserted therein.

The first cap body 1410 prepared as described above is attached to a lower portion of one end of the first detachable body 1231, and at this time, the first nozzle part 12220 is inserted into the inside of the first cap body 1410 do.

The cap magnetic body 1420 is provided on the upper surface side of the first cap body 1410 and may be formed of a magnetic body. In addition, the cap magnetic body 1420 may be provided at a distance corresponding to the detachable magnetic body 1233 along the circumferential direction of the first cap body 1410. When the first cap body 1410 is attached to a lower portion of one end of the first detachable body 1231, the cap magnetic body 1420 and the detachable magnetic body 1233 may attach it.

The second cap body 1430 may extend below the first cap body 1410 and have a smaller diameter than the first cap body 1410. In addition, the inside of the second cap body 1430 may be formed in a shape capable of blocking the discharge port of the first nozzle part 1220.

The third cap body 1440 may extend below the second cap body 1430 and have a larger diameter than the second cap body 1430.

The cap unit 1400 provided as described above may not be provided to be detachably attached to only the first discharge unit 1200, but may also be provided to be detachable to the second discharge unit 1300.

7 is a perspective view of a docking unit according to an embodiment of the present invention, FIG. 8 is a perspective view showing a process of inserting a cap unit into the docking unit according to an embodiment of the present invention, and FIG. 9 is an embodiment of the present invention. It is a perspective view showing a state in which the cap unit is inserted into the first docking part according to an example.

7 to 9, the docking unit 1500 is provided on one side of the substrate unit, a first docking provided to attach and detach the cap unit 1400 to the first discharge unit 1200 A portion 1510 and a second docking portion 1520 provided to attach and detach the cap unit of the second discharge unit 1300 may be included.

The first docking part 1510 and the second docking part 1520 have the same configuration except that they are disposed to face each other. Therefore, only the first docking part 1510 will be described in detail.

The first docking part 1510 includes a docking body 1511, a first docking groove 1512, a second docking groove 1513 and a third docking groove 1514.

The docking body 1511 may be provided by being coupled to one side of the substrate unit 1100. At this time, the docking body 1511 of the first docking part 1510 is disposed to face each other with the docking body of the second docking part 1520, and the space between the two is not less than the maximum diameter of the cap unit 1400. It may be disposed spaced apart from each other to form.

The first docking groove 1512 may be formed in the docking body 1511 and may be formed of a curved groove with one side open so that the first cap body 1410 can be inserted.

Specifically, the first docking groove 1512 may have a curved groove formed in a shape in which a direction toward the second docking part 1520 of the docking body 1511 is open. In addition, the first docking groove 1512 may be provided to have a circular curved groove into which the first cap body 1410 can be inserted.

The second docking groove 1513 may be formed under the first docking groove 1512 and may be formed of a curved groove with one side open to allow the second cap body 1430 to be inserted therein.

Specifically, the second docking groove 1513 may be formed of a curved groove opened in the same direction as the first docking groove 1512. In addition, the second docking groove 1513 may be provided to have a circular curved groove into which the second cap body 1410 can be inserted.

In addition, the second docking groove 1513 may be provided to have a smaller diameter than the third cap body 1440. The second docking groove 1513 provided as described above is provided with the cap unit 1400 when the first discharge body 1210 rises while the cap unit 1400 is inserted into the first docking part 1510. ) May limit the rise so that the cap unit 1400 is detached from the first detachable part 1230.

The third docking groove 1514 may be formed under the second docking groove 1513 and may be formed of a curved groove with one side open to allow the third cap body 1440 to be inserted therein.

Specifically, the third docking groove 1514 may be formed of a curved groove opened in the same direction as the second docking groove 1513. In addition, the third docking groove 1514 may be provided to have a circular curved groove into which the third cap body 1440 can be inserted.

The first docking groove (1512), the second docking groove (1513) and the third docking groove (1514) are respectively the first cap body (1410), the second cap body (1430) and the third cap Compared to the body 1440, the diameter may be larger. Only in this way, when the first detachable part 1230 is brought close to the cap unit 1400, the cap magnetic body 1420 is attached to the detachable magnetic body 1233 while the cap unit 1400 rotates and moves properly. While the alignment can be achieved. If the cap body is provided to accurately fit each of the first docking groove (1512), the second docking groove (1513), and the third docking groove (1514), the attachment and detachment match the position of the cap magnetic body. Since the position of the magnetic body 1233 must be adjusted, control may be difficult and inconvenient.

Hereinafter, in the nozzle drying prevention apparatus 1000 of the printer for outputting a variety of materials, a process in which the cap unit 1400 is attached and detached to the first discharge unit 1200 will be described.

10 is an exemplary operation diagram showing a process of attaching a cap unit to a first discharge unit according to an embodiment of the present invention.

First, with further reference to FIG. 10, a process of attaching the cap unit 1400 to the first discharge unit 1200 will be described.

A state in which the first detachable part 1230 is inserted into the first docking part 1510 of the docking unit 1500 by adjusting the height of the first nozzle part 1220 of the first discharge unit 1200 Of the cap unit 1400.

As described above, when the first detachable part 1230 approaches the cap unit 1400, the cap unit 1400 is properly rotated and moved by magnetic force, and the cap magnetic body 1420 is aligned with the detachable magnetic body 1233. Will be attached.

When the attachment is completed in this way, the first nozzle part 1220 can move horizontally in the open direction of the first docking part 1510 to remove the cap unit 1400 from the first docking part 1510. have.

11 is an exemplary operation diagram showing a process of detaching a cap unit from a first discharge unit according to an embodiment of the present invention.

Next, referring to FIG. 11 further, a process in which the cap unit 1400 is detached from the first discharge unit 1200 will be described.

First, the cap unit 1400 may be inserted into the first docking part 1510 by moving the first nozzle part 1220 horizontally in the open direction of the first docking part 1510.

After being completely inserted, the first nozzle part 1220 is raised. At this time, since the second docking groove 1513 is formed to have a diameter smaller than that of the third cap body 1440, the cap unit 1400 is restricted from rising. As a result, the cap unit 1400 is detached from the first detachable part 1230 and remains inserted into the first docking part 1510.

As described above, according to the present invention, if necessary, the cap unit 1400 is attached to the unused first discharge unit 1200 and the second discharge unit 1300 so that the material at the discharge port is hardened, causing a nozzle clogging phenomenon. Can be prevented.

In addition, according to the present invention, the cap unit 1400 is not manually coupled to the discharging units, but is automatically aligned so that the detachment and detachment of the cap unit 1400 can be made, so that the cap unit 1400 can be easily detached, which is convenient. .

In addition, according to the present invention, it is possible to attach and detach the cap unit 1400 to the discharge units with only magnetic force without separate driving parts such as motors, actuators, cylinders, and the like.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

1000: Device to prevent nozzle drying of printers for printing multiple materials
1100: substrate unit 1200: first discharge unit
1210: first discharge body portion 1220: first nozzle portion
1230: first detachable unit 1231: detachable body
1232: curved body 1233: detachable magnetic body
1300: second discharge unit 1310: second discharge main body
1320: second nozzle unit 1330: second detachable unit
1400: cap unit 1410: first cap body
1420: cap magnetic body 1430: second cap body
1440: third cap body 1500: docking unit
1510: first docking unit 1511: docking body
1512: first docking groove 1513: second docking groove
1514: third docking groove 1520: second docking portion

Claims (11)

A substrate unit provided to print the material discharged thereon;
A first discharge unit provided above the substrate unit and configured to discharge a first material to the substrate unit;
A second discharge unit provided on one side of the first discharge unit and provided to discharge a second material to the substrate unit; And
And a cap unit coupled to the first discharge unit and the second discharge unit to block the discharge port,
The cap unit is attached to the first discharging unit or the second discharging unit or in use to prevent the first material or the second material located in the discharging port from being hardened by preventing air from entering the discharging port in use. It is characterized in that it is detached from the first discharge unit or the second discharge unit so that the first material or the second material is discharged from the discharge port, and is selectively coupled or separated from the first discharge unit or the second discharge unit using a magnetism. Nozzle drying prevention device of printer for printing various kinds of materials.
The method of claim 1,
The first discharge unit,
A first discharge body forming a body and supplying a first material;
A first nozzle part coupled to a lower portion of the first discharge body part and discharging the first material; And
It is coupled to the lower portion of the first discharge body, and includes a first detachable portion provided to be detachably attached to the cap unit,
The first detachable part is provided to prevent the first material in the nozzle part from hardening by blocking the discharge port of the first nozzle part by the cap unit.
The method of claim 2,
The first detachable part,
A detachable body coupled to a lower portion of the first discharge body and extending toward the first nozzle;
A curved body formed at one end of the detachable body and formed in a curved surface to surround a part of the circumference of the first nozzle part; And
It is formed on the lower surface of the detachable body, characterized in that it comprises a plurality of detachable magnetic body formed along the circumference of the curved body to prevent nozzle drying of a printer for printing a variety of materials.
The method of claim 1,
The second discharge unit,
A second discharge body forming a body and supplying a second material;
A second nozzle unit coupled to a lower portion of the second discharge body and discharging the second material; And
It is coupled to the lower portion of the second discharge body, and includes a second detachable portion provided to be detachably attached to the cap unit,
The second detachable part is provided to prevent the second material in the second nozzle part from hardening by blocking the discharge port of the second nozzle part by the cap unit.
The method of claim 3,
The cap unit,
Attached to the lower portion of the detachable body, comprising a first cap body provided to have a diameter corresponding to the curved body, the nozzle drying prevention device for a printer for printing a variety of materials, characterized in that it comprises a.
The method of claim 5,
The cap unit,
It is provided on the upper surface side of the first cap body, further comprising a cap magnetic body provided at a distance corresponding to the detachable magnetic body along the circumferential direction of the first cap body to prevent drying of the nozzle of the printer for printing a variety of materials, characterized in that it further comprises Device.
The method of claim 5,
The cap unit,
A second cap body extending below the first cap body, having a diameter smaller than that of the first cap body, and blocking the discharge port of the first nozzle part; And
And a third cap body extending below the second cap body and having a larger diameter than the second cap body.
The method of claim 7,
Further comprising a docking unit provided on one side of the substrate unit,
The docking unit,
A first docking part provided to attach and detach the cap unit to the first discharge unit; And
And a second docking part provided to attach and detach the cap unit to the second discharge unit.
The method of claim 8,
The first docking part,
A docking body coupled to one side of the substrate unit;
A first docking groove formed in the docking body and formed of a curved groove with one side open so that the first cap body can be inserted;
A second docking groove formed under the first docking groove and formed of a curved groove with an open side thereof to allow the second cap body to be inserted; And
And a third docking groove formed under the second docking groove and formed of a curved groove with one side open so that the third cap body can be inserted,
The second docking groove is a nozzle drying prevention device of a printer for printing multiple materials, characterized in that provided so as to be formed to be smaller in diameter than the third cap body.
The method of claim 9,
The first docking groove, the second docking groove, and the third docking groove are respectively formed in diameters larger than that of the first cap body, the second cap body, and the third cap body. Nozzle drying prevention device.
The method of claim 10,
When the first discharge unit is close to the cap unit, the cap unit is attached to the detachable magnetic body in an aligned state while rotating and moving by magnetic force.

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