KR20210032172A - Thermal sublimation type printer - Google Patents

Abstract

The present invention relates to a dye-sublimation printer and, more specifically, to a dye-sublimation printer interoperated with the mounting of a cartridge to attach paper to a pickup roller by rotating a knock-up plate upward, and interoperated with the removal of the cartridge to move the knock-up plate away to prevent a disturbance to the mounting of the cartridge by rotating the knock-up plate downward. According to the present invention, the dye-sublimation printer includes: a frame having a mounting groove formed on a side to mount a cartridge; a slider sliding inside the frame in a direction orthogonal to a supply direction of paper, and having a slit formed in a diagonal direction; a spring connecting one side of the slider with the frame; a knock-up lifter provided in an upper part of the slider, having a protrusion formed on a lower side to be inserted into the slit, and having a slope formed on an upper side; and a knock-up plate provided in an upper part of the knock-up lifter, having a slope protrusion formed on a lower side to be attached to the slope of the knock-up lifter, and having one end hinged with the bottom side of the frame.

Description

Dye sublimation type printer{THERMAL SUBLIMATION TYPE PRINTER}

The present invention relates to a dye-sublimation type printer, and more particularly, in conjunction with the mounting of the cartridge, rotates the knock-up plate upward to bring the paper into close contact with the pickup roller, and rotates the knock-up plate downward in connection with the removal of the cartridge It relates to a dye-sublimation printer that escapes so as not to interfere with the mounting of the cartridge.

In recent years, with the rapid spread of smartphones, many people are taking pictures of events or everyday life.

For this reason, in recent years, portable printers that communicate wired/wireless with a portable smartphone and can print photos taken with a smartphone with high quality on the fly are increasingly popular.

A dye-sublimation printer, which is a type of portable printer, refers to a printer in which heat is applied to a thermal transfer ribbon coated with a dye so that the dye on the ribbon is transferred to and fixed on paper (recording medium).

The structure of a conventional dye-sublimation printer will be described with reference to FIGS. 1 to 3.

In the conventional dye-sublimation printer 200, a mounting groove 211 is formed so that the cartridge 100 is inserted from the side.

The printer 200 includes a printer main body 210 having a mounting groove 211 formed on a side thereof, a side cover 220, and a pressure spring 230.

The printer main body 210 includes an outlet 212 through which paper is drawn, a first bushing 213, a second bushing 214 and a cartridge fixing protrusion 215 that are coupled to the cartridge 100.

The cartridge fixing protrusion 215 is a wedge-shaped member protruding from the inner surface of the printer body 210 for a certain length, and is fitted with the cartridge fixing hole 116 of the cartridge 100 inserted into the mounting groove 211. The cartridge 100 is guided so that it can be disposed at a predetermined position of the printer 200 and is fixed at the same time, and the cartridge 100 is prevented from being separated from the printer 200.

The side cover 220 is rotatably installed on the side of the printer body 210 so that the mounting groove 211 is selectively opened and closed.

The pressure spring 230 is a leaf spring installed on the bottom of the upper housing 210a of the printer main body 210, and is in close contact with the upper surface of the paper receiving part 111 of the cartridge 100 accommodated in the printer main body 210. It provides an elastic force to press the paper receiving portion 111.

4 and 5 show a conventional cartridge. The cartridge 100 is a cartridge body formed integrally by arranging in a line a paper receiving unit 111, a supply reel 120 wound up ink ribbon, and a winding reel 130 wound up used ink ribbon after printing. It includes a portion 110, a cartridge cover portion 140, and a pressure spring hole 150.

In addition, the cartridge 100 is provided with a cartridge fixing groove 116 that is fitted with the cartridge fixing protrusion 215 so that the cartridge 100 is fixed to a predetermined position of the printer, and inserted into the printer 200 Prevents the cartridge 100 from being separated from the printer 200.

In addition, a handle 117 for gripping the cartridge 100 is installed so that the user can grip it when removing the cartridge 100 inserted in the printer 200 so that it can be easily removed from the printer 200.

Meanwhile, as described above, the paper accommodated in the paper receiving unit 111 is pressed with a pressure spring 230 so as to be in close contact with the pickup roller provided in the printer main body 210. When the pickup roller is driven in this state, one sheet of paper is supplied.

However, the pressure spring 230 in the form of a plate spring has a problem in that the elastic force is lowered according to the frequency of use, so that the paper cannot be strongly pressed against the pickup roller. In particular, the pressurization of the paper by the pressurizing spring is not interlocked with the mounting or removal of the cartridge, and an operation of opening and closing the upper housing 210a is separately required.

Patent Publication 10-2015-0088402 Registered Patent 10-1507064 Patent Publication 10-2015-0088402 Registered Patent 10-1486327

The present invention has been conceived to solve the above-described problem, and an object of the present invention is to provide a dye-sublimation type printer that rotates a knock-up plate upward in connection with the mounting of a cartridge so that paper is in close contact with a pickup roller.

Another object of the present invention is to provide a dye-sublimation printer that rotates the knock-up plate in a downward direction in conjunction with removal of the cartridge so as not to interfere with the mounting of the cartridge.

In order to solve the above technical problem, the dye-sublimation printer according to the present invention includes a frame in which a mounting groove in which a cartridge is mounted is formed; A slider sliding in a direction orthogonal to the feeding direction of the paper from the inside of the frame, and having slits formed in a diagonal direction; A spring connecting the frame and one side of the slider; A knock-up lifter provided on an upper portion of the slider, a protrusion inserted into the slit formed on a bottom surface, and an inclined surface formed on an upper surface; And a knock-up plate provided on an upper portion of the knock-up lifter, having an inclined protrusion in close contact with the inclined surface of the knock-up lifter formed on a bottom surface, and one end hingedly coupled to the bottom surface of the frame.

In addition, it is preferable that the frame has an opening formed on the bottom surface, and the slider is slid within the opening.

In addition, it is preferable that the front and rear ends of the slider are bent to guide movement along both side walls of the opening.

In addition, the slider is preferably formed with a guide portion extending in the sliding direction on one side.

In addition, it is preferable that a guide protrusion for guiding the movement in contact with the end of the guide part is formed on the frame.

In addition, it is preferable that a stopper is formed on one side of the slider.

In addition, it is preferable that locking protrusions are formed on the other side walls of the opening, and hooks are formed on both side walls of the knock-up lifter so as to be mounted on the locking protrusions.

In addition, when the hook is mounted on the locking jaw, it is preferable that an escape groove is formed so that the hook can be retracted inward.

In addition, it is preferable that the inclined protrusion of the knock-up plate moves along an inclined surface formed on the knock-up lifter.

In addition, it is preferable that a spring connecting the other end of the knock-up plate and the frame is further provided.

In addition, it is preferable that the knock-up plate has inclined surfaces downwardly formed on both sides.

According to the present invention, there is an effect that the paper is in close contact with the pickup roller by rotating the knock-up plate upward in connection with the mounting of the cartridge.

In addition, there is an effect of avoiding the mounting of the cartridge by rotating the knock-up plate in a downward direction in connection with the removal of the cartridge.

1 to 3 show a conventional dye-sublimation printer.
4 and 5 show cartridges mounted in a conventional dye-sublimation printer.
6 to 8 show the overall configuration of an embodiment according to the present invention.
9 to 12 are views for explaining main parts of an embodiment according to the present invention.
13 to 17 are views for explaining the operating state of the embodiment according to the present invention.

Hereinafter, the structure and operation of the dye-sublimation printer according to the present invention will be described in detail with reference to the accompanying drawings.

6 to 8, the dye-sublimation type printer (embodiment) according to the present invention includes a cartridge 100 and a printer body 1 to which the cartridge is mounted or removed from the side.

A mounting groove 11 into which the cartridge 100 is mounted is formed on the side of the frame 10 of the printer main body 1.

The cartridge 100 is a ribbon frame 110 in which a supply reel mounting part 112 is mounted on which a supply reel is mounted, and a winding reel mounting part 111 is mounted on which a winding reel used after printing is mounted. ), and the paper receiving unit 120 detachably attached to the ribbon frame 110 is configured to be separated and coupled. Coupling grooves 113 are formed at both lower sides of the ribbon frame 110, and coupling protrusions 123 inserted into the coupling grooves 113 are provided at both sides of the paper storage unit 120, and the ribbon frame 110 ).

An opening hole 121 is formed in the paper storage unit 120, and a plurality of sheets of paper P are stacked on the lower portion of the paper storage unit 120 and mounted through the side of the frame 10. .

In addition, a locking means 122 is provided at one side of the paper storage unit 120 to prevent it from being arbitrarily removed when inserted into the frame 10.

Inside the frame 10, a pickup roller 21 is coupled by a shaft 20, and a pickup motor M for transmitting a driving force to the pickup roller 21 is provided. The pickup roller 21 comes into contact with the paper P through the opening hole 121.

In addition, a knock-up plate 30 is provided on the bottom surface of the frame 10, and one side of the knock-up plate 30 presses the paper P stacked under the paper receiving unit 120 upward to pick up. It is brought into close contact with the lower part of the roller 21. In this way, when the paper P is in close contact with the pickup roller 21, when the pickup roller 21 rotates by receiving the driving force of the pickup motor M, the paper can be supplied forward by the frictional force.

One side of the knock-up plate 30 is hinged to the frame 10, and when the cartridge 100 is mounted through the side of the frame, the knock-up plate 30 rotates and the other side feeds the paper (P). When the cartridge 100 is removed through the side surface of the frame 10, the knock-up plate 30 is rotated in a downward direction in order to escape so as not to interfere with the mounting of the new cartridge 100.

The attachment/detachment operation of the knock-up plate 30 and the cartridge 100 will be described later, and components for rotating the knock-up plate 30 according to the attachment and detachment of the cartridge 100 will be described in detail.

9 to 12, the frame 10 has an opening 12 formed on the bottom surface.

The opening 12 is formed in a substantially rectangular shape, and a slider 50 is provided within the opening 12 to slide in a direction orthogonal to the feeding direction of the paper.

The slider 50 has a slit 51 formed in an oblique direction, and one side is connected to the frame 10 by a spring S1. Therefore, when the slider 50 slides through the opening 12, the spring S1 is tensioned to generate an elastic restoring force, and when the external force is removed, the spring S1 returns to its original position. Spring holders 14 and 55 to which a spring S1 is connected are formed on one side of the slider 50 and the frame 10.

The front end 52 and the rear end 53 of the slider 50 are bent to guide movement along both side walls 12a of the opening 12.

In addition, the slider 50 has a guide portion 54 extending in a sliding direction on one side thereof.

In the frame 10, guide protrusions 15a and 15b are formed to be bent in contact with one or both ends of the guide part 54 to guide the movement.

In addition, a bent portion 54a is formed at the end of the guide portion 54. When the cartridge 100 is inserted from the side of the frame 10 through the mounting groove 11, the slider 50 moves in a direction orthogonal to the paper feeding direction because the cartridge 100 pushes the bent portion 54a. It is to move sliding.

In addition, when the cartridge 100 is removed from the side of the frame 10, it returns to its original position by the elastic restoring force of the spring S1.

Since the bent portion 54a is in contact with the inner surface of the frame 10, the stroke of the sliding movement of the slider 50 is limited. That is, the bent portion 54a of the guide portion 54 can slide until it contacts the inner wall of the frame 10.

In addition, a stopper 56 is also bent on a side facing the bent portion 54a. Since the slider 50 is connected to the spring S1, the moving distance is limited so as not to be pulled out of the allowable range.

A knock-up lifter 40 is provided on the upper portion of the slider 50, and the knock-up lifter 40 has a protrusion 43 inserted into the slit 51 of the slider on a bottom surface. Therefore, the protrusion 43 is constrained to the slit 51. Since the slit 51 is formed to be inclined, when the slider 50 slides, the knock-up lifter 40 moves in the moving direction of the slider 50 by the protrusion 43 constrained by the slit 51 It reciprocates in the direction orthogonal to and.

In addition, the upper surface of the knock-up lifter 40 is formed with an inclined surface upward (paper discharging direction), and hooks 42 are formed on both side walls.

Meanwhile, locking protrusions 13 are formed on the other side walls of the opening 12. Accordingly, when the knock-up lifter 40 is pressed downward while being positioned above the opening 12, the hook 42 passes through the locking projection 13 and is mounted to be caught under the locking projection 13. Therefore, the knock-up lifter 40 is mounted on the opening 12 by being hooked on the locking jaw 13 of the opening, and the hook 42 is a sliding movement that advances or retreats in the paper supply direction along the locking jaw 13 It is equipped to make it possible.

In addition, escape grooves 44 are formed on both side walls of the knock-up lifter 40, which forms an extra space so that the hook 42 can be retracted inward when the hook 42 is mounted on the locking protrusion 13.

In addition, the hook 42 and the locking projection 13 are formed to be tapered, so that the hook can be easily lowered and mounted along the locking projection 13 (see '42' in FIG. 16).

The knock-up plate 30 has one end hingedly coupled to the bottom surface of the frame to be rotatable. Specifically, pinholes 16 are formed on both sides of the opening 12 in the frame 10, and the knock-up plate 30 is hinged by a hinge pin h penetrating the pinhole 16 to enable rotation. Structure. Hinge holes 31 through which the hinge pins h pass are formed on both sides of the knock-up plate 30.

The knock-up plate 30 is provided on an upper portion of the knock-up lifter 40, and an inclined protrusion 32 that is in close contact with the inclined surface 41 of the knock-up lifter is formed on a bottom surface.

In addition, the knock-up plate 30 is connected to the frame 10 by a spring S2. Accordingly, the knock-up plate 30 has a spring holder 33 to which the spring S2 is connected to protrude downward and receives an elastic force in the direction of the bottom surface of the frame by the spring S2.

In addition, the knock-up plate 30 has inclined surfaces 34 downwardly formed on both sides. The inclined surface 34 is configured to facilitate mounting without catching the cartridge 100 inserted through the side of the frame 10. An inclined surface 35 is also formed at the tip of the knock-up plate. This is to prevent scratches from occurring when the paper is pressed upward.

13 shows a state in which the cartridge 100 is mounted on the printer main body 1 as an embodiment according to the present invention.

As shown, through the side of the printer main body 1, the ribbon frame 110 on which the supply reel and the take-up reel are mounted, and the paper storage unit 120 accommodated under the stack of a plurality of sheets are stacked together and inserted do. In addition, the locking device 122 is caught in the frame and is not removed arbitrarily.

When the cartridge 100 is mounted in this way, the uppermost sheet of paper P is exposed through the opening hole 121 formed in the paper storage unit 120.

In addition, a pickup roller 21 is positioned above the opening hole 121. In this state, the pickup roller 21 descends through the opening hole 121 and receives the driving force of the pickup motor M to supply the uppermost sheet of paper P to the front.

On the other hand, at this time, the knock-up plate 30 must push the paper P upward from the bottom to be in close contact with the pickup roller 21 so that the paper can be supplied to the front without a slip phenomenon due to frictional force.

Hereinafter, the operation of the knock-up plate linked to the mounting and removal of the cartridge will be described.

14 and 15 show a state in which the tip of the knock-up plate 30 is lowered. That is, in order for the cartridge 100 to be inserted through the side of the printer body, the tip of the knock-up plate 30 must be maintained in a lowered state. Otherwise, it is because the cartridge 100 interferes when entering the side of the frame.

14 (a) is a perspective view of a combined state of the knock-up plate 30, the knock-up lifter 40, and the slider 50, and (b) is a side view. In addition, (a) of FIG. 15 is a plan view, and (b) is a bottom view.

Referring to this, the slider 50 is pulled to the left side of FIG. 15 by the spring S1. In this state, the protrusion 43 is located above the inclined slit 51. That is, the knock-up lifter 40 is located on the front end (paper discharging direction) side of the slider 50. At this time, the inclined protrusion 32 formed on the bottom surface of the knock-up plate 30 comes into contact with a lower position among the inclined surfaces 41 of the knock-up lifter.

In addition, the spring (S2) elastically pulls the front end of the knock-up plate 30, the rear end is coupled to the hinge pin (h) toward the bottom surface of the frame. Therefore, when the cartridge 100 is inserted from the side, the tip of the knock-up plate 30 does not interfere. In addition, since the inclined surfaces 34 downwardly downward are formed on both sides of the knock-up plate 30, the cartridge can be inserted along the inclined surface 34 without interference of the knock-up plate 30.

16 and 17 show a state in which the tip of the knock-up plate 30 is raised. That is, the tip of the knock-up plate 30 must be raised in order to bring the paper P into close contact with the pickup roller 21. Otherwise, a slip phenomenon occurs between the paper P and the pick-up roller 21, so that the paper cannot be supplied smoothly.

Figure 16 (a) is a perspective view of the combined state of the knock-up plate 30, the knock-up lifter 40, and the slider 50, and (b) is a side view. In addition, (a) of FIG. 17 is a plan view, and (b) is a bottom view.

Referring to FIG. 17, when the cartridge 100 is inserted through the side of the frame, the slider 50 slides from left to right by pushing the bent portion 54a of the slider 50 to the right in the drawing ( Fig. 17 (a) see arrow).

At this time, the spring (S1) connected between the slider 50 and the frame is tensioned to generate an elastic restoring force.

When the slider 50 moves from left to right in this way, the knock-up lifter 40 is retracted by the protrusion 43 constrained by the slit 51 (see arrow (b) of FIG. 17). This is because the protrusion 43 of the knock-up lifter moves to the lower portion of the inclined slit 51 (in a direction opposite to the paper discharge direction).

As described above, when the knock-up lifter 40 retreats, the inclined surface 41 formed on the upper surface of the knock-up lifter 40 also moves to move the inclined protrusion 32 formed on the bottom surface of the knock-up plate 30. At this time, the inclined protrusion 32 comes into contact with a high position of the inclined surface 41 of the knock-up lifter 40.

As a result, the tip of the knock-up plate 30 is rotated around the hinge pin h to be lifted (refer to the arrow (b) of FIG. 16).

In such an operation, the tip of the knock-up plate 30 presses the paper P upward and makes it in close contact with the pickup roller 21.

When the cartridge 100 is removed from the printer body 1 again, the slider 50 slides from right to left by the elastic restoring force of the tensioned spring S1, and according to the movement of the slider 50 The lifter 40 advances along the locking protrusion 13 of the opening 12 as shown in FIG. 15 while the protrusion 43 moves along the slit 51. In addition, as the knock-up lifter 40 advances, the inclined protrusion 32 formed on the bottom of the knock-up plate 30 comes into contact with a lower position among the inclined surfaces of the knock-up lifter 40, and the knock-up plate by the action of the spring S2 The tip of (30) is rotated in the downward direction to maintain the descending state so as not to interfere when the cartridge 100 is inserted.

As described above, according to the embodiment of the present invention, the cartridge 100 is rotated in the direction in which the tip of the knock-up plate 30 rises in conjunction with the operation of mounting the cartridge 100 through the side of the printer body 1, and the cartridge 100 is removed. At the same time, the tip of the knock-up plate 30 is rotated in the downward direction.

1: Example
10: frame
11: Mounting groove
12: opening
30: knock-up plate
40: Nakup Lifter
50: slider
100: cartridge
110: ribbon frame
120: paper compartment

Claims (10)

A frame in which a mounting groove in which the cartridge is mounted is formed on a side surface;
A slider sliding in a direction orthogonal to the feeding direction of the paper from the inside of the frame and having slits formed in a diagonal direction;
A spring connecting the frame and one side of the slider;
A knock-up lifter provided on an upper portion of the slider, a protrusion inserted into the slit formed on a bottom surface, and an inclined surface formed on an upper surface; And
A dye-sublimation printer comprising: a knock-up plate provided on an upper portion of the knock-up lifter, a knock-up plate having an inclined protrusion in close contact with the inclined surface of the knock-up lifter formed on a bottom surface, and one end hingedly coupled to the bottom surface of the frame. .
The method of claim 1,
The frame has an opening formed on the bottom surface,
The dye-sublimation printer, characterized in that the slider slides within the opening.
The method of claim 2,
A dye-sublimation printer, characterized in that the front and rear ends of the slider are bent to guide movement along both side walls of the opening.
The method of claim 1,
The slider is a dye-sublimation printer, characterized in that the guide portion extending in the sliding direction is formed on one side.
The method of claim 4,
A dye-sublimation printer, characterized in that the frame has a guide protrusion formed in contact with the end of the guide to guide the movement.
The method of claim 2,
The slider is a dye-sublimation printer, characterized in that the stopper is formed on one side.
The method of claim 2,
Locking protrusions are formed on the other side walls of the opening,
Dye-sublimation printer, characterized in that the hooks are formed on both side walls of the knock-up lifter so as to be mounted on the locking jaws.
The method of claim 7,
The hook is a dye-sublimation printer, characterized in that the escape groove is formed so that the hook can retreat to the inside when mounted on the locking jaw.
The method of claim 1,
Dye-sublimation printer, characterized in that further provided with a spring connecting the frame and the other end of the knock-up plate.
The method of claim 1,
The knock-up plate is a dye-sublimation printer, characterized in that the downwardly inclined surface is formed on both sides.

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