WO2023191381A1

WO2023191381A1 - Printing device

Info

Publication number: WO2023191381A1
Application number: PCT/KR2023/003836
Authority: WO
Inventors: 최병현
Original assignee: 망고슬래브 주식회사
Priority date: 2022-03-31
Filing date: 2023-03-23
Publication date: 2023-10-05
Also published as: KR102433120B1; KR20230141397A

Abstract

According to several embodiments of the present disclosure, a printing device is disclosed. A printing device may include: a device body having an opening hole formed through a lower part thereof; an ink member disposed in the device body and having a printing part exposed through the opening hole; and a height adjusting module for adjusting a height between the printing part and a printing medium.

Description

Printing Apparatus {PRINTING APPARATUS}

The present disclosure relates to a printing device, and specifically to a printing device that can adjust the height between the printing portion of the ink member and the printing medium.

The generally known function of a printer is a device that prints desired images on paper, fabric, etc.

In the past, relatively large printers were placed in office spaces, homes, etc. and used for office purposes, but recently, products for specific purposes that emphasize portability have been required, and miniaturized printers, such as printers for photo printing purposes, have been released. there is.

Recently, hand held printers have become popular. Handheld printers are small and easy to carry, and can print designs not only on relatively flat surfaces such as paper and fabric, but also on surfaces with changes in the surface, such as human skin and leather.

However, in order for a handheld printer to properly print a design on a printing medium such as paper, fabric, human skin, or leather, a certain distance must be maintained between the printing portion of the ink member mounted on the handheld printer and the printing medium.

If the gap is too close or contact occurs between the printing part of the ink member and the printing medium, printing may not be performed properly and the design may be distorted.

For example, this is not a problem for relatively flat printing media such as paper and fabric, but in the case of soft printing media such as human skin, if the handheld printer is placed in contact with the human skin and moved to print a design, the human skin may be damaged during the movement. Deformation occurs in the skin.

In this case, the gap between the printing portion of the ink member and the human skin may be too close or touch, and as a result, the desired design may not be printed.

The present disclosure aims to solve the above-described problems and other problems. The technical problem to be achieved by some embodiments of the present disclosure is to smoothly print a design on the surface regardless of the material of the printing medium by adjusting the height between the printing part of the ink member and the printing medium in consideration of the material of the printing medium. The purpose is a printing device that can

The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art of the present disclosure from the description below. There will be.

A printing device according to some embodiments of the present disclosure includes a device body having an opening hole formed in the lower portion; an ink member disposed inside the device body and exposing a printing portion through the opening hole; and a height adjustment module that adjusts the height between the printing unit and the printing medium.

According to some embodiments of the present disclosure, the height adjustment module includes: an elevating block disposed at a lower portion of the device body; Button portion disposed on the lifting block; and a lifting unit connected between the inner frame of the device body and the button portion and lifting the lifting block.

According to some embodiments of the present disclosure, the lifting block includes: a first frame disposed below the device body and on which the button portion is disposed; and a second frame coupled to the upper part of the first frame and having a through hole through which the lifting unit passes.

According to some embodiments of the present disclosure, the lifting block includes: a recessed portion formed in a lower portion of the first frame to be recessed toward the inside of the device body; a protrusion disposed on an opposite side of the depression and protruding in an inner direction of the device body; and a moving hole formed through the depression and the protrusion.

According to some embodiments of the present disclosure, the button unit includes an operation button inserted and disposed in the moving hole; and a moving plate connected to the operation button and seated on the protrusion.

According to some embodiments of the present disclosure, a lower frame is formed at a lower end of the inner frame, the opening hole is formed in the lower frame, and the first frame includes a frame hole through which the lower frame passes; And it may further include a lifting bulkhead formed along the perimeter of the frame hole and supporting an outer perimeter of the lower frame.

According to some embodiments of the present disclosure, the lifting unit includes: a first bracket formed on the button portion; a second bracket formed on the inner frame; and a link beam connected to the first bracket by a first shaft and connected to the second bracket by a second shaft.

According to some embodiments of the present disclosure, the lifting unit includes a guide block disposed on an upper portion of the first frame; and a guide hole formed in the guide block into which the first shaft is movably inserted.

According to some embodiments of the present disclosure, the lifting unit includes: a first fixing groove formed by cutting in the circumferential direction on the first shaft; a second fixing groove formed by cutting in the circumferential direction of the second shaft; and a fixing piece that is fitted into the first fixing groove or the second fixing groove and prevents the first shaft or the second shaft from being separated from the first bracket or the second bracket, respectively. there is.

According to some embodiments of the present disclosure, the lifting block includes: a first roller disposed on one side of the printing unit on the first frame; and a second roller disposed on the other side of the printing unit on the first frame.

According to some embodiments of the present disclosure, the lifting unit includes an insertion groove formed on an inner surface of the guide hole; and an elastic member disposed in the insertion groove and having a plurality of bent portions, wherein the first shaft moves between the plurality of bent portions and can adjust the lifting position of the lifting block.

The technical solutions obtainable from this disclosure are not limited to the solutions mentioned above, and other solutions not mentioned above will be clearly apparent to those skilled in the art from the description below. It will be understandable.

The effects of the printing device according to the present disclosure will be described as follows.

According to some embodiments of the present disclosure, the height between the printing part of the ink member and the printing medium can be adjusted in consideration of the material of the printing medium.

Accordingly, by forming a printing area in consideration of surface deformation depending on the material of the printing medium that may occur during the printing process, the design can be smoothly printed on the surface.

Ultimately, compared to conventional technologies, product performance can be improved by properly printing the design desired by the user even on soft printing media such as human skin and leather, and thus product preference can be improved.

The effects that can be obtained through the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.

Various embodiments of the present disclosure are described with reference to the drawings, where like reference numerals are used to collectively refer to like elements. In the following examples, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more embodiments. However, it will be clear that such embodiment(s) may be practiced without these specific details.

1 is a top perspective view for explaining a printing device according to some embodiments of the present disclosure.

Figure 2 is a lower perspective view for explaining a printing device according to some embodiments of the present disclosure.

Figure 3 is a bottom view for explaining a printing device according to some embodiments of the present disclosure.

Figure 4 is a perspective view for explaining a height adjustment module according to some embodiments of the present disclosure.

Figure 5a is a lower perspective view showing a state before lowering the height adjustment module according to some embodiments of the present disclosure.

Figure 5b is a lower perspective view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure.

Figure 6a is a side view showing a state before lowering the height adjustment module according to some embodiments of the present disclosure.

Figure 6b is a side view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure.

Figure 7a is a side cross-sectional view showing a state before lowering of the height adjustment module according to some embodiments of the present disclosure.

Figure 7b is a side cross-sectional view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure.

Figure 8a is a partial side cross-sectional view showing a state before lowering of the height adjustment module according to some embodiments of the present disclosure.

Figure 8b is a partial side cross-sectional view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure.

9A and 9B are diagrams showing a state in which the height adjustment module is raised or lowered according to the material of the printing medium in the printing device according to some embodiments of the present disclosure.

Figure 10 is a partial side cross-sectional view showing another form of a height adjustment module according to some embodiments of the present disclosure.

Hereinafter, various embodiment(s) of the printing device according to the present disclosure will be described in detail with reference to the drawings, but identical or similar components will be assigned the same reference numerals regardless of the reference numerals, and duplicate descriptions thereof will be omitted. Do this.

The purpose and effects of the present disclosure, and technical configurations for achieving them, will become clear by referring to the embodiments described in detail below along with the accompanying drawings. In describing one or more embodiments of the present disclosure, if it is determined that a detailed description of related known technology may obscure the gist of at least one embodiment of the present disclosure, the detailed description will be omitted.

The terms in this disclosure are terms defined in consideration of the functions in this disclosure, and may vary depending on the intention or custom of the user or operator. In addition, the attached drawings are only intended to facilitate understanding of one or more embodiments of the present disclosure, and the technical idea of the present disclosure is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present disclosure are not limited. , should be understood to include equivalents or substitutes.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only considering the ease of preparation of the present disclosure, and do not have distinct meanings or roles in themselves.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present disclosure.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise. That is, unless otherwise specified or clear from context to indicate a singular form, the singular in this disclosure and claims should generally be construed to mean “one or more.”

In the present disclosure, terms such as “comprising,” “includes,” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the present disclosure. It should be understood that this does not exclude in advance the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In the present disclosure, the term “or” should be understood not as “or” in the exclusive sense but as “or” in the connotative sense. That is, unless otherwise specified or clear from context, “X utilizes A or B” is intended to mean one of the natural implicit substitutions. That is, either X uses A; X uses B; Or, if X uses both A and B, “X uses A or B” can apply to either of these cases. Additionally, the term “and/or” as used in this disclosure should be understood to refer to and include all possible combinations of one or more of the related listed items.

Unless otherwise defined, all terms (including technical and scientific terms) used in this disclosure may be used with meanings that can be commonly understood by those skilled in the art. Additionally, terms defined in commonly used dictionaries are not overly interpreted unless specifically defined.

However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. Only some embodiments of the present disclosure are provided to fully inform those skilled in the art of the present disclosure of the scope of the present disclosure, and the present disclosure is only defined by the scope of the claims. Therefore, the definition should be made based on the content throughout this disclosure.

1 is a top perspective view for explaining a printing device according to some embodiments of the present disclosure. Figure 2 is a lower perspective view for explaining a printing device according to some embodiments of the present disclosure. Figure 3 is a bottom view for explaining a printing device according to some embodiments of the present disclosure. Figure 4 is a perspective view for explaining a height adjustment module according to some embodiments of the present disclosure. Figure 5a is a lower perspective view showing a state before lowering the height adjustment module according to some embodiments of the present disclosure. Figure 5b is a lower perspective view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure. Figure 6a is a side view showing a state before lowering the height adjustment module according to some embodiments of the present disclosure. Figure 6b is a side view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure. Figure 7a is a side cross-sectional view showing a state before lowering the height adjustment module according to some embodiments of the present disclosure. Figure 7b is a side cross-sectional view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure. Figure 8a is a partial side cross-sectional view showing a state before lowering of the height adjustment module according to some embodiments of the present disclosure. Figure 8b is a partial side cross-sectional view showing a state after lowering the height adjustment module according to some embodiments of the present disclosure. 9A and 9B are diagrams showing a state in which the height adjustment module is raised or lowered according to the material of the printing medium in the printing device according to some embodiments of the present disclosure. Figure 10 is a partial side cross-sectional view showing another form of a height adjustment module according to some embodiments of the present disclosure.

1 to 10, the printing device 100 according to some embodiments of the present disclosure includes a device lead 200, a device body 300, an ink member 400, a height adjustment module 500, and a control unit ( 600). However, the above-described components are not essential for implementing the printing device 100, so the printing device 100 described in this disclosure may have more or less components than the components listed above.

Referring to FIGS. 1 to 4, 7A, and 7B, the device lead 200 can be detached from the upper part of the device body 300. Although not shown in the drawings, detachable structures may be implemented in various forms inside the device lead 200 and on top of the device body 300.

The user can replace the ink member 400 inside the device body 300 by detaching the device lead 200 from the top of the device body 300.

The device body 300 is combined with the device lead 200 and can form the overall appearance of the printing device 100. An inner frame 350 and a lower frame 320 may be disposed inside the device body 300.

A receiving groove 351 may be formed in the central portion of the internal frame 350, and an ink member 400 may be disposed in the receiving groove 351. And the control unit 600 may be disposed around the outer circumference of the internal frame 350. The control unit 600 can control the overall operation of the printing device 100. In the embodiment of the present disclosure, the control unit 600 may be a concept that includes a circuit board, various circuit components, batteries, and various control logic. .

A penetrating interface hole 310 may be formed on the outside of the device body 300, and an interface unit V connected to the control unit 600 may be exposed and disposed in the interface hole 310. By connecting an external cable to the interface unit (V), the user can transmit data, charge the battery, etc., and perform various other operations using the interface unit (V). In an embodiment of the present disclosure, the interface unit (V) may be a USB terminal, but is not necessarily limited thereto.

The lower frame 320 may be connected to the lower part of the inner frame 350, and an opening hole 330 connected to the receiving groove 351 may be formed in the center of the lower frame 320. Accordingly, the printing portion 410 formed at the bottom of the ink member 400 disposed in the receiving groove 351 may be exposed to the lower part of the device body 300 through the opening hole 330.

The ink member 400 may be placed in the receiving groove 351 formed in the internal frame 350, and a printing unit 410 that prints a design on a printing medium may be placed at the bottom of the ink member 400. And the printing unit 410 may be exposed to the printing medium through the opening hole 330 described above.

Meanwhile, referring to FIGS. 2 to 4, 7A and 7B, and 8A and 8B, the height adjustment module 500 may be disposed at the lower part of the device body 300, and may be used for printing of the ink member 400. The height between the unit 410 and the printing medium can be adjusted. In order for a design to be properly printed on a printing medium, a certain distance must be maintained between the printing medium and the printing unit 410.

If the distance between the printing medium and the printing unit 410 is too close, the printing unit 410 and the printing medium may come into direct contact, and in this case, the design may be printed on the printing medium in a lump.

In particular, when the printing medium is a soft material such as human skin, when the printing device 100 is placed on the human skin and moved to print the design, the human skin may be deformed and come into contact with the printing unit 410. . In this case, the design may not be printed properly on the human skin.

Therefore, the height adjustment module 500 adjusts the distance between the printing unit 410 of the ink member 400 and the printing medium in consideration of the material of the printing medium, so that the design can be properly printed on the printing medium.

The height adjustment module 500 according to some embodiments of the present disclosure may include a lifting block 510, a lifting unit 560, and a button portion 520.

The lifting block 510 may be disposed at the lower part of the device body 300. In an embodiment of the present disclosure, the lifting block 510 may be disposed below the internal frame 350 constituting the device body 300. This lifting block 510 may include a first frame 511 and a second frame 517.

The first frame 511 may be disposed at the lower portion of the device body 300, and a button portion 520 may be disposed on the first frame 511.

In an embodiment of the present disclosure, the first frame 511 and the second frame 517 may be disposed below the inner frame 350, and the button portion 520 includes a depression 512, a protrusion 512a, and It may include a moving hole 513.

The recessed portion 512 may be formed to be recessed from the lower portion of the first frame 511 toward the inside of the device body 300. The protrusion 512a may be formed on the opposite side of the depression 512 to protrude in the inner direction of the device body 300.

The moving hole 513 may be formed penetrating the depression 512 and the protrusion 512a.

Here, the button unit 520 may be arranged in connection with the lifting block 510 and the lifting unit 560, and the lifting unit 560 can be operated by a user's manipulation. In an embodiment of the present disclosure, the button unit 520 may include an operation button 521 and a moving plate 522.

The operation button 521 may have a rectangular parallelepiped shape, and in this case, the user can easily move the operation button 521 inside the movement hole 513 with one finger. Other forms that are easy to operate with fingers are also possible.

The moving plate 522 is connected to the operation button 521 and may be seated on the protrusion 512a located on the first frame. The moving plate 522 may have a generally rectangular plate shape so that the lifting unit 560 can be connected to the upper portion, but is not limited thereto.

Additionally, a frame hole 519a and a lifting partition 519 may be further formed in the first frame 511.

The frame hole 519a may be formed at a position corresponding to the lower frame 320 on the first frame 511, and the lower frame 320 may be inserted and placed in the frame hole 519a. At this time, the printing portion 410 of the ink member 400 exposed to the opening hole 330 of the lower frame 320 may also be inserted and disposed in the frame hole 519a.

The lifting bulkhead 519 may be formed along the perimeter of the frame hole 519a on the first frame 511, and supports the outer perimeter of the lower frame 320 when the first frame 511 is raised and lowered. You can go up and down in any direction.

The second frame 517 may be placed inside the device body 300 and may be coupled to the top of the first frame 511. Referring to FIG. 4, a plurality of fastening parts 511a may be disposed on the upper part of the first frame 511, and the first frame 511 and the second frame 517 are connected by bolts through the fastening parts 511a. can be concluded. Other combination forms are also possible.

Additionally, a through hole 518 through which the lifting unit 560 passes may be formed in the second frame 517. The lifting unit 560 is disposed through the through hole 518 and can connect the lower part of the internal frame 350 and the upper part of the moving plate 522.

And, the lifting block 510 may further include a first roller 530 and a second roller 540.

Referring to FIG. 4, a first roller bracket 514a is formed on one side of the lifting bulkhead 519 on the first frame 511, and a first roller 530 may be disposed on the first roller bracket 514a. . Additionally, a second roller bracket 514b may be formed on the other side of the lifting bulkhead 519, and a second roller 540 may be disposed on the second roller bracket 514b.

Referring to FIG. 2, the first roller 530 and the second roller 540 are disposed on both sides of the printing unit 410 to be spaced apart from the printing unit 410. Referring to FIGS. 9A and 9B, the printing unit 410 When 410 moves to print a design on a printing medium, the first roller 530 and the second roller 540 are respectively disposed in the moving direction of the printing unit 410, so that the printing unit 410 moves. It can be confirmed that it runs smoothly. That is, the first roller 530 and the second roller 540 can assist the movement of the printing unit 410.

When the user holds and moves the car body, the first roller 530 and the second roller 540 move smoothly, so the printing unit 410 moves smoothly so that the design can be properly printed on the printing medium. .

Here, referring to FIG. 4, the control unit 600 may further include an encoder module 610.

The encoder module 610 may include a first gear 611, a second gear 612, and a detection sensor 613. The first gear 611 may be connected to the rotation shaft 530a of the first roller 530, and the second gear 612 may be arranged to engage with the first gear 611. The detection sensor 613 is disposed in a position opposite to the second gear 612 and can detect the rotation speed of the second gear 612. The detection sensor 613 transmits the detected rotation speed of the second gear 612 to the control unit 600, and the control unit 600 calculates this to determine the distance traveled by the printing device 100.

For example, if 600 pulses are generated when the first roller 530 rotates by 1 inch, when the control unit 600 recognizes that 600 pulses have been generated, it reports that the printing device 100 has moved by 1 inch. You can decide.

Meanwhile, the control unit 600 can print a design at 600 dpi resolution within 1 inch by synchronizing with a resolution of 1 dpi per pulse. In this case, when the user holds the printing device 100 and moves it 1 inch from the surface of the printing medium, the printing unit 410 prints the design at 600 dpi on the surface of the printing medium within the moving distance of 1 inch.

The user can adjust the resolution of the design to a different value in proportion to the number of rotations of the first roller 530 using control programs such as apps and computer programs that can be installed on terminals, computers, etc.

And, referring to FIGS. 4, 7A and 7B, 8A and 8B, the lifting unit 560 is connected between the inner frame 350 of the device body 300 and the button portion 520, and the button portion ( The lifting block 510 can be raised and lowered according to the operation of 520). The lifting unit 560 according to an embodiment of the present disclosure includes a first bracket 566, a first shaft 564, a second bracket 567, a second shaft 565, a fixing piece 568, and a link beam ( 563) and a guide block 561.

A pair of first brackets 566 may be disposed at opposing positions on the upper part of the moving plate 522 of the button portion 520. A shaft hole may be formed in the first bracket 566, and the first shaft 564 may be inserted and disposed in the shaft hole.

A pair of second brackets 567 may be disposed at opposing positions on the lower part of the internal frame 350. A shaft hole may be formed in the second bracket 567, and a second shaft 565 may be inserted and disposed in the shaft hole.

The link beam 563 is disposed between a pair of first brackets 566 and a pair of second brackets 567, and is connected to the first bracket 566 by a first shaft 564. 2 The bracket 567 may be connected to the second shaft 565.

At this time, referring to FIG. 4, a pair of first fixing grooves 564a cut in the circumferential direction may be formed on both edges of the first shaft 564, and a pair of first fixing grooves 564a may be formed on both edges of the second shaft 565. A pair of second fixing grooves 565a cut in one direction may be formed.

The fixing piece 568 is respectively fitted into a pair of first fixing grooves 564a or a pair of second fixing grooves 565a, and the first shaft 564 or the second shaft 565 is respectively It is possible to prevent separation from the first bracket 566 or the second bracket 567.

Four fixing pieces 568 are coupled to each pair of first and second fixing

grooves

564a and 565a formed on the first and

second shafts

564 and 565, and the first and

second shafts

564 and 565 are connected to the first and second fixing

grooves

564a and 565a. It prevents separation from the

brackets

566 and 567 and the link beam 563.

Here, the fixing piece 568 may include a protrusion 568a protruding toward the center of the fixing piece 568. The protrusion 568a is inserted into the first and second fixing

grooves

564a and 565a. , preventing separation of the first and

second shafts

564 and 565.

A pair of guide blocks 561 may be disposed on both sides of the button portion 520 and the lifting unit 560 at the top of the first frame 511. A guide hole 562 may be formed in the guide block 561, and the first shaft 564 may be inserted and disposed in the guide hole 562.

When the user moves the operation button 521 along the movement hole 513 using his or her finger, the movement plate 522 connected to the operation button 521 moves together. At this time, the first shaft 564 connected to the upper part of the moving plate 522 with the first bracket 566 moves in the same direction as the operation button 521 along the guide hole 562.

Referring to Figure 8a, the state before the lifting block 510 is lowered is disclosed. In this case, the operation button 521 is located on one side of the moving hole 513, and the first shaft 564 is also located on one side of the guide hole 562.

Referring to Figure 8b, the state is disclosed after the lifting block 510 is lowered. When the user moves the operation button 521 in the direction of the arrow with his or her finger, the moving plate 522 connected to the operation button 521 moves together.

And the first shaft 564 connected to the first bracket 566 disposed on the upper part of the moving plate 522 moves from one side to the other side along the longitudinal direction of the guide hole 562.

When the first shaft 564 moves along the longitudinal direction of the guide hole 562, the link beam 563 connected to the first shaft 564 rotates, and accordingly, the lifting block 510 moves the device body 300. ) moves in the downward direction. Since the upper part of the link beam 563 is connected to the lower part of the internal frame 350 and its position is fixed, the lifting block 510 connected to the lower part of the link beam 563 is lowered.

Meanwhile, referring to Figure 10, another form of the lifting unit 560 is disclosed. In another form, the lifting unit 560 may further include an insertion groove 562a and an elastic member 569.

The insertion groove 562a may be formed by cutting into the inside of the guide hole 562. Additionally, the elastic member 569 may be disposed in the insertion groove 562a, and a plurality of bent portions 569a may be formed. In an embodiment of the present disclosure, the elastic member 569 may be a leaf spring, but it is not necessarily limited thereto, and other materials capable of exerting elastic force are also possible.

Both sides of the elastic member 569 can be bent and inserted into the insertion groove 562a, and as the elastic member 569 is unfolded again, a plurality of bent portions 569a may be arranged along the longitudinal direction of the guide hole 562. You can.

In this case, the first shaft 564 can move between the plurality of bent portions 569a and adjust the lifting position of the lifting block 510.

That is, since the bent portion 569a is made of an elastic material, when the first shaft 564 moves, a pair of bends disposed at the upper and lower portions of the guide hole 562 are caused by the pushing force of the first shaft 564. The parts 569a are spread in the up and down directions, and the first shaft 564 can move beyond one of the bent parts 569a.

And when the first shaft 564 completes its movement, the pushing force of the first shaft 564 disappears, so one bent portion 569a is restored by elastic force and is located on both sides of the first shaft 564. The located bent parts fix the position of the first shaft 564 inside the guide hole 562.

Meanwhile, FIGS. 5A and 5B show a lower perspective view of the height adjustment module 500 before and after being raised, and FIGS. 7A and 7B show a side cross-sectional view of the height adjustment module 500 before and after being raised.

As described above, when it is necessary to maintain a predetermined distance between the printing medium and the printing unit 410 in accordance with the material of the printing medium, the user uses the finger to press the operation button 521 shown in FIGS. 5A and 7A. Then, it is moved in the direction of the arrow shown in FIGS. 5B and 7B inside the moving hole 513.

As the operation button 521 moves, the above-described lifting unit 560 operates and lowers the lifting block 510 in the direction of the arrow indicated downward. That is, the lifting unit 560 can adjust the height between the printing unit 410 and the printing medium by moving the lifting block 510 upward or downward according to the movement of the operation button 521.

Here, referring to FIGS. 5A and 7A, the height difference between the bottom surface of the first frame 511 and the bottom surface of the printing unit 410 does not show a significant difference. To be precise, the height difference between the bottom surface of the first frame 511 and the printing unit 410 is maintained at a distance equal to Z1, which will be discussed below.

Now, referring to FIGS. 5B and 7B, after the height adjustment module 500 operates, the first frame 511 is lowered, so the bottom surface of the first frame 511 and the bottom of the printing unit 410 The height difference between the surfaces becomes larger. Precisely, the height difference between the lower surface of the first frame 511 and the printing unit 410 was adjusted to maintain a distance equal to Z2, which will be discussed below.

In this case as well, the first roller 530 and the second roller 540 are connected to the lower part of the first frame 511, so that when they descend together, they can move smoothly on the surface of the printing medium.

Figures 6a and 6b show side views of the height adjustment module 500 before and after being lifted.

In this drawing, the printing media are indicated as G1 and G2, which may be classified according to the material of the printing media.

For example, the printing medium G1 may be a relatively flat or hard material, such as paper, fabric, a wall, a wooden board, etc. And the printing medium (G2) may be a soft material, for example, a material whose surface may be deformed during the printing process, such as human skin or rubber.

Additionally, in this drawing, the distance between the printing unit 410 and the printing medium is indicated as Z1 and Z2, which can be defined as the distance at which the printing unit 410 can print on the printing medium. Hereinafter, Z1 and Z2 will be defined and explained as the printing distance or jetting distance.

Referring to FIG. 6A, when the printing medium (G1) is relatively flat or made of a hard material, the printing unit 410 and the printing medium (G1) are used to smoothly print on the printing medium (G1). The distance between them must be maintained at the first jetting distance (Z1). At this time, the user can place the lifting block 510 inside the lower part of the device body 300 without lowering it.

Referring to FIG. 6b, when the printing medium (G2) is made of a soft material and deformation occurs during the printing process, the printing unit 410 and the printing medium are connected in order for the printing unit 410 to smoothly print on the printing medium (G1). The distance between (G1) must be maintained at the second jetting distance (Z2). This takes into account the surface deformation of the printing medium (G2). At this time, the user must lower the lifting block 510.

Specifically, the user can lower the lifting block 510 by operating the operation button 521 as described above. As the lifting block 510 descends, the first roller 530 and the second roller 540 may also descend. However, as shown in FIGS. 5B and 7B, the printing unit 410 may not descend.

Accordingly, the jetting distance between the printing unit 410 and the printing medium (G2) is adjusted from Z1 to Z2. Afterwards, when the user holds the printing device 100 and moves it along the surface of the printing medium, the jetting distance (Z2) is maintained between the printing unit 410 and the printing medium (G2) even if there is a change in the surface of the printing medium, so that the design can be You can print smoothly.

Referring to FIGS. 9A and 9B, the operation of the printer device according to surface changes for each printing medium is shown.

Referring to FIG. 9A, when the printing medium (G1) is relatively flat or made of a hard material, the user holds the printing device 100 and moves it in the direction of the arrow without operating the height adjustment module 500 to print the design on the printing medium ( G1) can be printed. P1 shown in this drawing represents a printing area and represents an area where the printing unit 410 prints a design by injecting ink into the printing medium G1 spaced at a predetermined interval.

At this time, the first roller 530 and the second roller 540 facilitate the surface movement of the printing medium G1. Here, the distance maintained between the printing unit 410 and the printing medium G1 may be the first jetting distance Z1 shown in FIG. 6A.

Referring to FIG. 9B, when the printing medium G2 is made of a soft material and the printing device 100 is moved in the direction of the arrow, the printing medium G2 is deformed due to the force applied by the user. In particular, when the first roller 530 and the second roller 540 move along the surface of the printing medium G2, severe compression may occur.

In this drawing, the user operates the height adjustment module 500 in consideration of the material of the printing medium (G2) to lower the lifting block 510. Accordingly, even if deformation occurs in the printing medium G2, the degree of deformation is reflected, and ultimately, a predetermined gap is maintained between the printing unit 410 and the printing medium G2 in the printing area P2.

P2 shown in this drawing represents a printing area and represents an area where the printing unit 410 prints a design by injecting ink into the printing medium G2 spaced at a predetermined interval.

According to the adjustment of the jetting distance Z2, the printing area P1 shown in FIG. 9A and the printing area P2 shown in FIG. 9B may have a relatively equal distance between the printing unit 410 and the printing medium.

According to at least one of the embodiments of the present invention described above, the height between the printing unit 410 of the ink member 400 and the printing medium can be adjusted in consideration of the material of the printing medium. Accordingly, there is an advantage in that a design can be smoothly printed on the surface by forming a printing area in consideration of surface deformation depending on the material of the printing medium that may occur during the printing process.

In the present disclosure, the printing device is not limited to the configuration and method of some of the embodiments described above, but may be configured by selectively combining all or part of each embodiment so that various modifications can be made. It may be possible.

Claims

A device body with an opening hole formed at the bottom;

an ink member disposed inside the device body and exposing a printing portion through the opening hole; and

A height adjustment module that adjusts the height between the printing unit and the printing medium;

Including,

The height adjustment module is,

an elevating block disposed below the device body;

Button portion disposed on the lifting block; and

a lifting unit connected between the inner frame of the device body and the button portion and lifting the lifting block;

Including,

The lifting block is,

a first frame disposed below the device body and on which the button portion is disposed; and

a second frame coupled to an upper part of the first frame and having a through hole through which the lifting unit passes;

Including,

Printing device.
According to paragraph 1,

The lifting block is,

a recessed portion formed at a lower portion of the first frame to be recessed toward the inside of the device body;

a protrusion disposed on an opposite side of the depression and protruding in an inner direction of the device body; and

a moving hole formed through the depression and the protrusion;

Including,

Printing device.
According to paragraph 2,

The button part,

An operation button inserted and placed in the moving hole; and

A moving plate connected to the operation button and seated on the protrusion;

Including,

Printing device.
According to paragraph 1,

A lower frame is formed at the lower end of the inner frame, and the opening hole is formed in the lower frame,

The first frame is,

a frame hole through which the lower frame passes; and

an elevation bulkhead formed along the perimeter of the frame hole and supporting an outer perimeter of the lower frame;

Containing more,

Printing device.
According to paragraph 1,

The lifting unit is,

a first bracket formed on the button portion;

a second bracket formed on the inner frame; and

a link beam connected to the first bracket by a first shaft and connected to the second bracket by a second shaft;

Including,

Printing device.
According to clause 5,

The lifting unit is,

a guide block disposed on an upper portion of the first frame; and

a guide hole formed in the guide block into which the first shaft is movably inserted;

Including,

Printing device.
According to clause 5,

The lifting unit is,

a first fixing groove formed by cutting in the circumferential direction of the first shaft;

a second fixing groove formed by cutting in the circumferential direction of the second shaft; and

a fixing piece fitted into the first fixing groove or the second fixing groove and preventing the first shaft or the second shaft from being separated from the first bracket or the second bracket, respectively;

Containing more,

Printing device.
According to paragraph 1,

The lifting block is,

a first roller disposed on one side of the printing unit on the first frame; and

a second roller disposed on the other side of the printing unit on the first frame;

Containing more,

Printing device.
According to clause 6,

The lifting unit is,

an insertion groove formed on an inner surface of the guide hole; and

an elastic member disposed in the insertion groove and having a plurality of bent portions;

Including,

The first shaft is,

Moving between the plurality of bends and controlling the lifting position of the lifting block,

Printing device.