KR101556325B1 - Stamp method of paper - Google Patents

Abstract

There is introduced a stamping method of a paper which can prevent the occurrence of curl generated in the printing of the paper.
The method of stamping paper comprises the steps of feeding paper into a movement path for stamping, conveying the paper fed into the movement path to a stamping position arranged on the lower side of the damping section and the coating section, A step of moving the damping unit and the coating unit in a vertical direction on a temporarily stopped paper sheet, and a step of conveying the stamped paper sheet along a movement path and discharging the stamped paper sheet.

Description

[0001] STAMP METHOD OF PAPER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of stamping paper, and more particularly, to a stamping method of paper capable of preventing curl of paper during printing.

In general, the stamping device is a device that enables serial numbers, stamps, or stamps to be stamped on paper such as banknotes, cashier's stamps, election ballots, test covers, bond papers, securities papers,

Such a stamping apparatus can stamp the paper by rolling the stamping roller through the stepping motor, or can stamp the paper by using the solenoid which is lifted and lowered by the operation of the actuator.

For example, in the case of a stamping device used in a cashier, such as a bank, a stamp can be stamped by lifting a stamp face stamped with a specific phrase or symbol while temporarily stopping the paper being conveyed along a specific path.

However, when stamping the paper by vertically moving the stamp surface while the paper is temporarily stopped, the front end of the paper on which stamping is performed is temporarily stopped, while the rear end of the paper advancing to the stamping position proceeds, A curl may be caused at the rear end portion, which causes a problem that the stamping operation can not be performed smoothly.

Patent Document: Korean Patent Laid-Open Publication No. 2001-0096472 (published on November 11, 2001)

Embodiments of the present invention provide a method of stamping a sheet of paper that can prevent the occurrence of curl that occurs during printing of a sheet of paper.

According to an aspect of the present invention, there is provided a method of forming a stamp, comprising: inputting a sheet to a movement path for stamping; Conveying the sheet to a stamping position in which the damping portion and the coating portion are disposed opposite to each other; Pausing the paper conveyed to the stamping position; Moving the damping unit and the coating unit toward each other to stamp the temporarily stopped paper; And conveying and discharging the sheet along the movement path.

At this time, the step of stamping the paper may control the conveying speed of the first stamped paper to be faster than the entering speed of the paper to be fed through the moving path after the first stamping of the paper on the stamping position.

Further, the step of stamping the paper may stamp the first-stamped paper several times in succession.

Further, the step of stamping the paper can be controlled such that the conveying speed of the paper after the first stamping is faster than the conveying speed of the paper before the first stamping.

The step of stamping the paper may include pressing the paper by contacting the paper after the damping unit first contacts the paper.

The step of transporting and discharging the paper may control the transport speed of the transported paper after the first stamping of the paper to be faster than the transport speed of the paper to be transported through the transport path.

In addition, the conveying speed can be controlled to be 1.4 to 1.6 times faster than the entering speed.

In addition, the entry speed may be the ejection speed at which the paper is ejected from the printer.

1 is a block diagram illustrating a method of stamping paper according to an embodiment of the present invention.
FIG. 2 is a schematic view showing a state in which a damping portion is moved downward by a damping cam to support an upper surface of a sheet, in a method of stamping a sheet according to an embodiment of the present invention.
The present invention relates to a method of stamping paper according to an embodiment of the present invention. In the method of stamping paper according to an embodiment of the present invention, the damping portion supports the upper surface of the paper by the damping cam, Fig. 7 is a schematic view showing a state in which stamping is started. Fig.
4 is a view schematically showing a state in which stamping of a lower surface of a sheet of paper is completed in a state in which the damping portion supports the upper surface of the sheet by the damping cam in the method of stamping paper according to an embodiment of the present invention .
5 is a schematic view illustrating a state in which the damping spring pulls the damping portion upward by the rotation of the damping cam in a state in which the coating portion supports the lower surface of the sheet by the coating cam in the method of stamping paper according to the embodiment of the present invention. As shown in Fig.
6 is a state diagram schematically showing a state in which a coating spring pulls a coating portion downward by rotation of a coating cam in a method of stamping paper according to an embodiment of the present invention.
7 is a side view showing a stamping apparatus to which a stamping method according to an embodiment of the present invention is applied.
Fig. 8 is a plan view of the lower main body viewed toward the "AA"
Fig. 9 is a rear view of the upper main body viewed toward the "BB"
10 is a side view showing a stamping unit of a stamping device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Prior to the description of the present invention, the direction in which the inlet and the outlet of the stamping device are extended is defined as the horizontal direction of the main body, and the direction orthogonal to the horizontal direction is defined as the vertical direction of the main body .

1 is a block diagram illustrating a method of stamping paper according to an embodiment of the present invention.

As shown in FIG. 1, the method of stamping paper according to the present embodiment controls the conveying speed and the stamping speed of the paper so as to effectively prevent the curl of the paper 10 caused in the stamping operation in the vertical direction can do.

Here, the stamping apparatus to which the stamping method of this embodiment is applied can be located on the output side of the printer. For example, when the paper 10 is output at a specific ejection speed in the printer, the paper 10 output from the printer can enter the stamping device at a predetermined infeed speed. Of course, the stamping device may be installed to be interlocked with other types of apparatuses other than the printer, or only the stamping device may be used independently for single-sided printing of the paper 10. [ The paper 10 may be understood as a concept including various kinds of paper which require printing of a coating, in addition to a thin paper currency having a currency or a similar form in which predetermined content is printed.

More specifically, a method of stamping a sheet of paper includes a step S10 of feeding the sheet, a step S20 of conveying the sheet, a step S30 of temporarily stopping the sheet, a step S40 of stamping the sheet, And conveying and discharging the sheet (S50).

In the step (S10) of loading the paper, the paper can be fed into the moving path for stamping. At this time, the paper 10 can enter the movement path of the stamping device at a predetermined entry speed.

In this embodiment, the entry speed of the paper 10 entering the movement path may be the ejection speed at which the paper is ejected from the printer. Therefore, depending on the discharge speed discharged from the printer, the paper can enter the stamping apparatus, and the paper that has entered the stamping apparatus can be transported along the movement path of the stamping apparatus.

The step of conveying the sheet (S20) can convey the sheet fed into the movement path to the stamping position. At this time, the paper can be conveyed through the conveying roller disposed at the entrance side of the stamping apparatus.

The step of temporarily stopping the paper (S30) may temporarily stop the paper conveyed along the movement path at the stamping position. Here, the stamping position can be defined as a point at which the paper is stamped by the vertical movement of the damping portion and the coating portion.

 The step of stamping the paper (S40) can move the damping portion and the coated portion in the vertical direction and stamp the temporarily stopped paper at the stamping position. At this time, a damping portion for supporting the upper surface of the paper can be installed on the upper side of the stamping position so as to be movable in the vertical direction, and a damping portion for stamping the lower surface of the paper supported by the damping portion, As shown in Fig. Thus, the paper temporarily stopped at the stamping position can be stamped by the stamping portion, while being supported by the damping portion.

The step of stamping the paper (S40) may repeat the conveying and stopping operations of the paper along the movement path several times (about one to four times). When the paper stops, the damping portion and the coating portion As a result of repetitive movement, several sheets of paper (one to four places) can be printed on the paper 10.

The printing of the paper 10 can be smoothly implemented between the damping portion and the coating portion by successively interlocking the damping portion and the coating portion with a predetermined time difference (for example, 30 ms) .

This is because, when the damping portion and the coating portion are simultaneously operated, the load can be increased while overlapping the coating cam and the damping cam at the top dead center of the damping cam and the coating cam.

That is, the damping cam 361 and the coating cam 351 are structured in the shape of a crosshair, so that the damping cam 361 and the coating cam 351 are positioned at the top dead center point (the position of the longest distance from the damping shaft or the coating shaft When the damping cam 361 and the seal cam 351 are positioned on a straight line relative to each other, the damping cam 361 and the book of the seal cam 351 are positioned on the paper 10, The damping cam 361 and the coating cam 351 are overlapped with each other (about 2 mm) so that the damping cam 361 and the coating cam 351 are overlapped with each other, . As a result, these damping cams 361 and the coating cams 351 may not operate normally, and noise may be generated during operation of the damping cam 361 and the coating cam 351.

Hereinafter, a process of sequentially interlocking the damping unit and the coating unit with a predetermined time difference will be described in detail.

FIG. 2 is a schematic view illustrating a state in which the damping portion is supported by the damping cam in a downward direction while the upper surface of the sheet is supported by the damping cam. FIG. 3 is a cross- In the method of stamping paper according to one embodiment, a state in which the coating section starts to stamp on the lower surface of the paper while the coating section is moved upward by the coating cam in a state where the damping section supports the upper surface of the paper by the damping cam 4 is a view showing a state in which the damping portion supports the upper surface of the sheet by the damping cam and the stamping portion finishes stamping on the lower surface of the sheet of paper according to the embodiment of the present invention, Fig. 5 is a schematic view showing a method of stamping a sheet according to an embodiment of the present invention. In a state where the lower surface of the sheet is supported by the coating cam, FIG. 6 is a schematic view showing a state in which the damping spring pulls up the damping portion in the upward direction by the rotation of the pumping cam. Downward in a direction perpendicular to the longitudinal direction.

2, when the damping cam 361 of the stamping device is rotated in one direction (for example, clockwise direction in the figure), the ledge 361a of the damping portion 320 pushes the upper support 340 Thereby moving the damping unit 320 in the downward direction, so that the damping unit 320 can contact and support the upper surface of the paper sheet 10. When the coating cam 351 is rotated in the other direction (counterclockwise in the drawing, for example) from the operation time of the damping motor 362, the holding portion 351a of the coating cam 351 moves to the lower support table 330 , The coating unit 310 can move upward toward the paper 10. [0064] As shown in FIG.

3, the damping cam 361 is rotated in one direction so that the damping cam 361 is positioned at the top dead center (perpendicular to the upper support) and the coating cam 351 is rotated in the other direction The stamping on the paper can be started for the first time as the book 351a of the coating cam 351 comes into contact with the lower surface of the paper 10 at a predetermined angle.

The damping cam 361 is moved away from the top dead center as the damping cam 361 advances in one direction and the coating cam 351 rotates in the other direction, The stamping on the paper can be completed while being positioned at a point (positioned perpendicular to the lower support).

5, when the damping cam 361 continues to rotate in one direction, the upper support 340 can be moved upward by a damping spring (not shown) Direction rotation can proceed and escape. At this time, the coating unit 310 may be kept in contact with the lower surface of the paper sheet 10.

6, when the damping cam 361 continues to rotate in one direction, the damping portion 320 can be continuously moved upward by the damping spring, and when the painting cam 351 rotates in the other direction As the process proceeds, the lower support table 330 can be moved downward by a coating spring (not shown).

Thus, when the stamping of the sheet by the damping unit and the coating unit is completed, the stamped sheet can be conveyed and discharged along the movement path.

The step of conveying and discharging the sheet (S50) may convey the sheet stamped at the stamping position to the exit side of the stamping device along the movement path and discharge it to the outside. At this time, the paper can be conveyed through the conveying roller disposed on the exit side.

The step S50 of conveying and discharging the sheet can control the conveying speed of the sheet conveyed after the first stamping of the sheet to be faster than the sheet entering speed.

In this embodiment, after the paper is put into the stamping device, the paper can be printed four times in four places while repeating the conveying and stopping operation four times. At this time, the paper is fed to the stamping device And the conveying speed of the sheet conveyed after the first stamping of the sheet can be controlled to be 404 mm / s.

By controlling the conveying speed of the sheet after the first stamping to be faster than the sheet entering speed when curling (curling) of the sheet occurs due to the temporary stop of the sheet at the time of initial stamping of the sheet, It is possible to compensate the amount of paper 10 crying.

FIG. 7 is a side view showing a stamping apparatus to which a stamping method according to an embodiment of the present invention is applied, FIG. 8 is a plan view of a lower body viewed toward a "AA" FIG. 10 is a side view showing a stamping unit of a stamping device according to an embodiment of the present invention. FIG.

7 to 10, a stamping apparatus to which a stamping method according to the present invention is applied includes a main body 100, a conveying means 200, a stamping unit 300, and a controller 400 .

The main body 100 is a case in which the conveying means 200 and the stamping unit 300 are mounted and includes an inlet 102 through which the paper 10 enters and an outlet 103 through which the paper 10 is discharged. Respectively. A moving path 101 through which the paper 10 is fed can connect the inlet 102 and the outlet 103 to communicate with each other inside the main body 100.

The main body 100 may include an upper main body 100a and a lower main body 100b which are disposed on upper and lower sides with the movement path 101 therebetween. The upper and lower main bodies 100a and 100b are rotatably connected to each other through a hinge shaft 110 provided at the inlet 102 side of the main body 100. [ The movement path 101 of the main body 100 is rotated by a predetermined angle with respect to the hinge shaft 110 while the grip 120 of the upper main body 100a is gripped, The assembly structure between the upper main body 100a and the lower main body 100b can be variously changed.

An elastic guide 510 and a guide plate 520 may be respectively installed on the upper and lower sides of the inlet 102 side of the main body 100. The guide plate 520 may be fixed in an inclined downward direction in the lower main body 100b so that the paper 10 can easily enter the main body 100. [

The elastic guide 510 may be formed such that the proximal end thereof is rotatably installed on the upper body 100a and the distal end thereof is bent. The front end portion of the elastic guide 510 can press the paper 10 fed into the main body 100 from the inlet side to maintain a flat state.

That is, even if the paper 10 being conveyed is temporarily stopped during the printing of the paper 10, since the leading end of the elastic guide 510 presses the paper 10, Curling of the paper 10 can be prevented. In this embodiment, the elastic guide 510 presses the paper 10 by its own weight, but it can provide a certain pressing force to the paper 10 by using a separate elastic spring.

The guide grooves 104 may be formed on the side walls of the main body 100 and more specifically on the upper and lower main bodies 100a and 100b in a direction perpendicular to the main body 100. [ The guide grooves 104 can vertically guide the upper support 340 and the lower support 330 of the stamping unit 300, which will be described later.

A locking means 130 for locking the upper body 100a and the lower body 100b together may be provided on the side of the outlet 103 of the main body 100. [ The locking means 130 includes a locking pin 131 protruding from the outlet 103 of the upper main body 100a and a locking hook 132 rotatably installed at the outlet 103 side of the lower main body 100b .

This allows the locking hook 132 to be fastened and fixed to the locking pin 131 in a state in which the upper main body 100a and the lower main body 100b are positioned close to each other when the paint is to be printed on the paper 10. [ When the painting unit 310 or the damping unit 320 is to be replaced, the locking hook 132 is separated from the locking pin 131 to rotate the upper body 100a away from the lower body 100b, The moving path 101 of the main body 100 can be opened.

A conveying means 200 for conveying the paper 10 may be provided in the main body 100.

The conveying means 200 can convey the paper 10 which has entered from the entrance 102 side of the main body 100 to the exit 103 side of the main body 100 along the movement path 101. [ In order to realize this, the conveying means 200 may include a first conveying roller 210, a second conveying roller 220, and a conveying motor 230.

The first conveying roller 210 may be rotatably installed at the entrance 102 side of the main body 100 via the first conveying shaft 240 and may be rotatably installed on the main body 100, (Not shown). Both ends of the first transport shaft 240 can be rotatably mounted on both side walls of the upper main body 100a and can be drivably connected to the motor shaft of the transport motor 230 via the drive belt 201 have.

The first conveying roller 210 is rotated by the first conveying shaft 240 so that the paper 10 is conveyed from the entrance 102 side of the main body 100 to the center side of the main body 100 where the stamping unit 300 is located Can be transported. Particularly, when the paper 10 of a size smaller than the reference size (for example, A4 size) (for example, A5 size) is fed to the inlet 102 of the main body 100 while maintaining the discharge speed of the printer at the output side of the printer The first conveying roller 210 can smoothly be conveyed along the movement path 101 of the stamping device by the rotational force of the first conveying roller 210. [

The second conveying roller 220 can be rotatably installed on the side of the outlet 103 of the main body 100 via the second conveying shaft 250 and can be rotated (Not shown). The second conveying roller 220 is rotated by the second conveying shaft 250 so that the paper 10 conveyed from the center side of the main body 100 to the outlet 103 side can be discharged to the outside of the main body 100 have. At this time, both end portions of the second conveying shaft 250 are rotatably mounted on both side walls of the upper main body 100a, and the second conveying shaft 250 is rotatably mounted on the motor shaft 230 of the conveying motor 230 via the drive belt 201. [ As shown in FIG.

The conveying motor 230 is a motor for providing a driving force to the first conveying roller 210 and the second conveying roller 220. The motor shaft of the conveying motor 230 is connected to the first conveying shaft 240 and the second conveying shaft 250 so as to be interlocked with each other.

The driving force of the conveying motor 230 is transmitted to the first conveying shaft 240 and the second conveying shaft 250 through the driving belt 201, ). ≪ / RTI > When the first conveying shaft 240 and the second conveying shaft 250 are rotated by the drive belt 201, the first conveying roller 210 rotates in the direction of the paper 102 10 can be conveyed along the movement path 101 to the outlet 103 side and the second conveying roller 220 can convey the paper 10 conveyed to the outlet 103 side of the main body 100 to the main body 100 And can be discharged to the outside.

In this embodiment, a first conveying roller 210 and a second conveying roller 220 are provided on the upper main body 100a and these first conveying rollers 210 and second conveying rollers 220 are provided on the lower main body 100b, 220 and the first and second support rollers 260 and 270 are provided, but these conveying rollers and the support rollers may be located on the opposite sides of each other. A first supporting roller 260 and a second supporting roller 270 are provided on the upper main body 100a and a first feeding roller 210 and a second feeding roller 220 are mounted on the lower main body 100b, Can be installed.

Since the first supporting roller 260 and the second supporting roller 270 are disposed opposite to the first conveying roller 210 and the second conveying roller 220 with the moving path 101 therebetween, The paper 10 can be transported from the inlet 102 side of the main body 100 to the outlet side 103 side through the frictional force by the conveying roller and the supporting roller.

A stamping unit 300 may be provided on the center side of the main body 100 to print the paper 10 on the paper.

The stamping unit 300 includes a coating unit 310, a damping unit 320, a lower support 330, an upper support 340, a coating driving unit 350, and a damping driving unit 360. A predetermined coating can be printed at least once on the moving paper 10 moving on the moving path 101 of the recording medium.

The coating unit 310 can be detachably mounted on the lower support table 330 and can print the coating on the paper 10 placed on the movement path 101 by the vertical movement of the lower support table 330. [ A mark, letter, model, letter or the like to be printed on the paper 10 can be embossed or embossed in the painting part 310 so that a paint can be printed on the paper 10 when pressed. Since the coating unit 310 is a commonly used automatic stamp, a detailed description thereof will be omitted.

The damping unit 320 may be disposed to face the coating unit 310 in order to support the paper 10 during the coating printing by the coating unit 310. The damping unit 320 may be detachably mounted on the upper support 340 and may support the backside of the paper 10 by vertical movement of the upper support 340.

The lower support member 330 can be mounted movably in the vertical direction in the lower main body 100b. Both ends of the lower supporter 330 can be mounted movably in the vertical direction to the guide grooves 104 of the lower main body 100b through the guide pins 302. [

A coating slot 331 on which the coating part 310 is mounted may be formed on the upper surface of the lower support part 330. A plurality of coating slots 331 are formed on the upper surface of the lower support table 330 so that the coating unit 310 is divided into a plurality of coating slots 331 in consideration of the position of the coating to be printed on the paper 10. [ As shown in Fig.

The upper support 340 can be mounted movably in the vertical direction in the upper body 100a. Both ends of the upper supporter 340 can be mounted movably in a direction perpendicular to the guide grooves 104 of the upper main body 100a.

A plurality of damping slots 332 on which the damping portions 320 are mounted may be formed on the lower surface of the upper supporter 340. The damping part 320 can be selectively mounted on the plurality of damping slots 332 in consideration of the mounting position of the coating part 310.

The coating driving part 350 may be mounted on the lower main body 100b and move the lower supporting frame 330 on which the coating part 310 is mounted in the vertical direction of the main body 100. [

The coating drive unit 350 includes a coating shaft 354 rotatably mounted on both side walls of the lower main body 100b and a paint frame 354 mounted on the coating shaft 354 and having a long portion 351a and an end portion 351b, A coating motor 352 drivingly connected to the conveying shaft via a plurality of driven gears 301 for rotating the coating cam 351 and a lower motor 352 for pulling the lower support table 330 downward And a painting spring 353 connecting between the lower main body 100b and the lower supporting base 330. [

The drive force of the paint motor 352 is transmitted to the paint shaft 354 through the driven gear 301 so that the paint shaft 354 is driven . When the painting cam 351 is rotated by 90 degrees, the book 351a of the painting cam 351 pushes the lower supporting table 330, and at the same time, the painting unit 310 can print the painting on the paper 10 . When the painting cam 351 is rotated 180 degrees, the end 351b of the painting cam 351 is located opposite to the lower supporting table 330. At this time, the painting spring 353 rotates the lower supporting table 330 So that the lower support member 330 can be returned to its original position.

The damping driving unit 360 may be mounted on the upper body 100a and may move the upper support 340 on which the damping unit 320 and the damping unit 320 are mounted in the vertical direction of the body 100.

The damping drive unit 360 includes a damping shaft 364 rotatably mounted on both side walls of the upper main body 100a and a damping shaft 364 mounted on the damping shaft 364 and having a knob 361a and an end 361b, A damping motor 362 drivingly connected to the damping shaft 364 via a plurality of driven gears 301 for rotating the damping cam 361 and a damping motor 362 for driving the upper support 340 in an upward direction And may include a damping spring 363 connecting between the upper body 100a and the upper support 340 for pulling.

The driving force of the damping motor 362 is transmitted to the damping shaft 364 through the driven gear 301 to rotate the damping shaft 364 . When the damping cam 361 is rotated by 90 degrees, the ledge 361a of the damping cam 361 pushes the upper support 340. At this time, the damping portion 320 can support the backside of the paper 10. [ Then, when the damping cam 361 is rotated by 180 degrees, the end portion 361b of the damping cam 361 is positioned to face the upper support 340, So that the upper support 340 can be returned to its original position.

The controller 400 can communicate with the conveying means 200 and the stamping unit 300 by wire or wireless and can control the conveying speed of the paper 10 by applying an operation signal to the conveying means 200, The printing speed of the paper 10 can be controlled by applying an operation signal to the unit 300. [

That is, the controller 400 enters the main body 100 by applying an appropriate operation signal to the conveying motor 230 of the conveying means 200 and the painting motor 352 and the damping motor 362 of the stamping unit 300 The stamping unit 300 is operated to stamp the paper 10 in a state in which the paper 10 is temporarily stopped and the paper 10 is conveyed from the main body 100 after the first stamping of the paper 10 The conveying speed of the paper 10 can be controlled so that the speed is higher than the entry speed of the paper 10 entering the main body 100. [

The conveying speed of the paper 10 conveyed along the moving path 101 of the main body 100 is determined by the entering speed of the paper 10 entering the main body 100, And can be controlled to be 1.4 to 1.6 times faster than that of FIG. For example, when the paper 10 enters the main body 100 at an entry speed of 277 m / s, the paper 10 positioned at the entrance 102 side of the main body 100 when the paper 10 is temporarily stopped and stamped, The curling of the paper 10 after the first stamping can be compensated by adjusting the conveying speed of the paper 10 after the initial stamping to 404 m / s.

More specifically, the controller 400 sequentially applies an operation signal to the damping unit 320 and the painting unit 310 of the stamping unit 300 to move the damping unit 320 downward first, It is possible to smoothly implement the printing of the paper 10 between the damping portions 320 and the coating portions 310 by sequentially moving the coating portions 310 upward.

A sensor for detecting the position of the paper 10 may be provided on the movement path 101 of the main body 100.

The detection sensor includes a first detection sensor 610 provided at the entrance 102 side of the main body 100, a second detection sensor 620 provided between the stamping unit 300 and the entrance 102, And a third sensing sensor 630 provided on the outlet 103 side of the first sensor 100.

The first sensing sensor 610 senses the paper 10 entering the entrance 102 side of the main body 100 and can apply the sensed position signal to the controller 400. [ The second sensing sensor 620 senses the paper 10 entering the stamping unit 300 for printing and can apply the position signal of the sensed paper 10 to the controller 400. [ The third sensing sensor 630 senses the paper 10 discharged to the outlet 103 of the main body 100 and applies the position signal of the sensed paper 10 to the controller 400. [

As described above, the present invention controls the conveying speed of the paper in the stamping method of the paper in consideration of the entry speed of the paper so as to prevent the curling of the paper at the time of printing, and the damping portion and the coating portion It is advantageous in that printing can be smoothly carried out by interlocking sequentially with a predetermined time difference.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

100: main body 101: moving path
200: conveying means 210: first conveying roller
220: second conveying roller 230: conveying motor
300: stamping unit 310:
320: damping part 330: lower support
340: upper support 350: coating drive
351: Painting cam 352: Painting motor
353: paint spring 360: damping drive part
361: damping cam 362: damping motor
363: Damping spring 400: Controller
510: elastic guide 520: guide plate
610: first sensing sensor 620: second sensing sensor
630: third detection sensor

Claims (8)

A step of feeding paper into a movement path for stamping;
Conveying the sheet to a stamping position in which the damping portion and the coating portion are disposed opposite to each other;
Pausing the paper conveyed to the stamping position;
Moving the damping unit and the coating unit toward each other to stamp the temporarily stopped paper; And
And conveying and discharging the paper along the movement path,
Wherein the step of stamping the paper comprises:
Wherein the damping portion and the coating portion are reciprocated by a cam action with a time lag such that the top dead center of the damping cam supporting the damping portion and the top dead center of the coating cam supporting the coating portion do not coincide with each other.
The method according to claim 1,
Wherein the step of stamping the paper comprises:
And after the first stamping of the paper on the stamping position, the conveying speed of the first stamped paper is controlled to be faster than the entering speed of the paper to be fed through the moving path.
3. The method of claim 2,
Wherein the step of stamping the paper comprises:
Wherein the first stamped paper is stamped a plurality of times in succession.
The method of claim 3,
Wherein the step of stamping the paper comprises:
So that the conveying speed of the paper after the first stamping is faster than the conveying speed of the paper before the first stamping.
The method according to claim 1,
Wherein the step of stamping the paper comprises:
Wherein the damping unit first contacts the paper, and then the coating unit contacts the paper to press the paper.
The method according to claim 1,
The step of conveying and discharging the sheet may include:
Wherein the conveying speed of the paper conveyed after the first stamping of the paper is controlled to be faster than the entering speed of the paper to be fed through the moving path.
The method according to claim 6,
Wherein the conveying speed is controlled to be 1.4 to 1.6 times faster than the entering speed.
8. The method of claim 7,
Wherein the entry speed is an ejection speed at which paper is ejected from the printer.

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