KR20170094868A - Thermal transfer printer for film - Google Patents

Thermal transfer printer for film Download PDF

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Publication number
KR20170094868A
KR20170094868A KR1020160016125A KR20160016125A KR20170094868A KR 20170094868 A KR20170094868 A KR 20170094868A KR 1020160016125 A KR1020160016125 A KR 1020160016125A KR 20160016125 A KR20160016125 A KR 20160016125A KR 20170094868 A KR20170094868 A KR 20170094868A
Authority
KR
South Korea
Prior art keywords
film
ink ribbon
roll
printing
drum
Prior art date
Application number
KR1020160016125A
Other languages
Korean (ko)
Inventor
권문찬
박찬섭
Original Assignee
주식회사 디아이티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 디아이티 filed Critical 주식회사 디아이티
Priority to KR1020160016125A priority Critical patent/KR20170094868A/en
Publication of KR20170094868A publication Critical patent/KR20170094868A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/325—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
    • B41J17/16—Holders in the machine for sheets of impression transfer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/22—Mechanisms permitting the selective use of a plurality of ink ribbons
    • B41J35/23—Mechanisms permitting the selective use of a plurality of ink ribbons with two or more ribbon guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/30—Embodiments of or processes related to thermal heads
    • B41J2202/33—Thermal printer with pre-coating or post-coating ribbon system

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  • Electronic Switches (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

A thermal transfer printer for a film comprises: a rotatable drum; A plurality of ink ribbon mounting means disposed around the outer periphery of the drum and capable of mounting an ink ribbon; Film supply means for supplying a film before printing; And a film winding means for winding the film after printing, wherein a film before printing is fed from the film feeding means, a film is printed through an outer periphery of the drum, and a film after printing is wound by the film winding means .
According to the thermal transfer printer for a film, although a thermal transfer printer system is adopted, a single printing object is successively printed by a plurality of heads, and a large number of printing objects can be simultaneously printed, thereby improving the printing speed.

Description

{THERMAL TRANSFER PRINTER FOR FILM}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a thermal transfer printer for a film, and more particularly, to a thermal transfer printer for a film that can be printed simultaneously using a plurality of heads,

Recently, as the number of small electronic devices such as smart phones has increased, it has become possible to supply cases of various colors and designs by printing on plastic films and then using them as cases of electronic devices.

Silk screen printing is generally used for printing on plastic film. In the case of the silk screen printing method, it is necessary to produce a large number of printing plates according to the number of images to be printed and the number of colors to be printed. In addition, since the thickness of the ink to be printed is thick, it is applied to small electronic devices such as smart phones, Is difficult to satisfy.

Korean Patent Publication No. 10-2007-0010032 (Thermal Transfer Printer for Film, hereinafter referred to as "Prior Art") discloses a thermal transfer printer for a film for solving the problems of the screen printing method.

Figure 1 is a representative illustration of the prior art.

As can be seen from FIG. 1, in the prior art, a plurality of ink ribbons 11 are mounted on one frame 13 to enable printing with a plurality of colors, but one ink ribbon 11, That is, it is a structure capable of only printing by one head. Therefore, in the case of the prior art, there is a need for an improvement measure capable of further improving the printing speed in order to be applied to a small electronic apparatus such as a smart phone as long as high-speed mass production is essential.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the technical problems as described above, and it is an object of the present invention to provide an image forming apparatus capable of simultaneously printing a single printing object by a plurality of heads, And to provide a thermal transfer printer for a film having improved printing speed.

According to a preferred embodiment of the present invention, a thermal transfer printer for a film comprises: a rotatable drum; A plurality of ink ribbon mounting means disposed around the outer periphery of the drum and capable of mounting an ink ribbon; Film supply means for supplying a film before printing; And a film winding means for winding the film after printing, wherein a film before printing is fed from the film feeding means, a film is printed through an outer periphery of the drum, and a film after printing is wound by the film winding means .

In addition, a thermal transfer printer for a film according to a preferred embodiment of the present invention is characterized in that, before the film after printing out of the outer periphery of the drum is wound around the film winding means, Further comprising: It is preferable that the display means is provided with a lighting device so that the film after printing can be made to emit light.

Specifically, a thermal transfer printer for a film according to a preferred embodiment of the present invention is characterized in that the film supplied from the film supply means moves along the outer periphery of the drum, The ink of each mounted ink ribbon can be sequentially transferred to the same printing object on the film.

In addition, in the thermal transfer printer for a film according to the preferred embodiment of the present invention, the ink of the ink ribbon mounted on each of the plurality of ink ribbon mounting means may be simultaneously transferred to another position on the film.

Further, in a thermal transfer printer for a film according to a preferred embodiment of the present invention, the drum is rotated in a direction opposite to the rotating direction of the drum at the time of printing, and the film is transported from the film winding means toward the film supply means .

Preferably the film supplied from the film feeding means again moves along the outer periphery of the drum after the film is fed back from the film winding means to the film feeding means, And the ink of the ink ribbon can be transferred onto the film.

According to another aspect of the present invention, there is provided a thermal transfer printer for a film, comprising a plurality of heads, each of the plurality of heads having a plurality of rows arranged in the width direction of the ink ribbon The thermal transfer can be performed at the same time.

Further, the ink ribbon is provided by an ink ribbon supply roll for supplying an ink ribbon and an ink ribbon take-up roll for winding up a used ink ribbon, wherein the ink ribbon supply roll and the ink ribbon take- As shown in Fig.

Preferably, at least one of the ink ribbon supply roll or the ink ribbon take-up roll is mounted on the ink ribbon supply roll and the ink ribbon take-up roll after the ink ribbon supply roll and the ink ribbon take- And adjusting means for adjusting the tension of the ink ribbon between the rolls. Specifically, the adjusting means rotates the ink ribbon supply roll so as to wind the ink ribbon on the ink ribbon supply roll, or supply the ink ribbon from the ink ribbon supply roll, The tension of the ink ribbon can be adjusted by rotating the ink ribbon take-up roll so as to supply the ink ribbon from the ink ribbon take-up roll.

According to the thermal transfer printer for a film of the present invention, a single printing object is successively printed by a plurality of heads while a thermal transfer printer system is employed, and a plurality of printing objects can be simultaneously printed, thereby improving the printing speed.

1 is a representative view of the prior art;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a cross-sectional explanatory view of Fig. 2;
4 is an exemplary view of an ink ribbon attachment means;
5 is an exemplary view of a head mounting means;
6 is a view for explaining printing by a thermal head.

Hereinafter, a thermal transfer printer for a film according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

It should be understood that the following embodiments of the present invention are only for embodying the present invention and do not limit or limit the scope of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

2 is a configuration diagram of a thermal printer according to a preferred embodiment of the present invention, and FIG. 3 is a cross-sectional view of FIG. 2 and 3 are schematic diagrams for explanation.

2 and 3, the thermal transfer printer for a film according to an exemplary embodiment of the present invention includes a drum 100, a film supply means 200, a film winding means 300, Mounting means (400) and display means (500).

The drum 100 is a rotating body rotatable by a control command by a control unit (not shown), and a plurality of ink ribbon and head mounting means 400 are disposed around the outer periphery of the drum 100.

The film FL before printing is supplied from the film supply means 200 by the rotation of the film supply means 200 and moves along the outer periphery of the drum 100 by the rotation of the drum 100, As shown in Fig. The film FL which has been printed and has passed the outer periphery of the drum 100 is wound on the film winding means 300 via the display means 500 which is kept flat for a certain period.

That is, each of the film feeding means 200 and the film winding means 300 preferably has a roll shape in which a film can be wound around the central axis and rotated by driving the motor about the central axis . However, it is more preferable that the motors for rotating the film feeding means 200 and the film winding means 300 are separately provided and controlled.

The display means 500 is preferably arranged around the film winding means 300 and by illuminating the printed film FL with a lighting device in the interior thereof, 500 to facilitate the user to confirm the state of the printed film FL.

The film FL is supplied from the film supply means 200 to move the film FL to a certain region of the outer periphery of the drum 100 and the film FL, which has been printed from a certain region of the outer periphery of the drum 100, It is necessary not to dispose the ink ribbon and the head mounting means 400 in a part of the outer periphery of the drum 100 in order to secure a space before moving to the winding means 300. [

The film FL is supplied from the film supply means 200 to move the film FL to a predetermined region of the drum 100. The film FL is discharged from a certain region of the outer periphery of the drum 100, It is preferable that a plurality of supporting mechanisms 600 for supporting the film FL is provided in the space before moving to the film winding means 300.

The ink ribbon and head mounting means 400 is a combination of the ink ribbon mounting means 410 and the head mounting means 420.

Fig. 4 shows an example of the ink ribbon mounting means 410, and Fig. 5 shows an example of the head mounting means 420. Fig.

The ink ribbon RB is provided by the ink ribbon supply roll 411 for supplying the ink ribbon RB and the ink ribbon winding roll 412 for winding the used ink ribbon RB. The ink ribbon supply roll 411 and the ink ribbon take-up roll 412 are connected by the ink ribbon RB. The ink ribbon RB is formed by applying a wax pigment ink on one side of the film so that the ink ribbon RB between the ink ribbon supply roll 411 and the ink ribbon winding roll 412 by the thermal head HD The ink is transferred by heating the other surface of the ink ribbon RB. The ink ribbon supply roll 411 and the ink ribbon winding roll 412 on which the ink ribbon RB is wound are mounted on the ink ribbon mounting means 410. [

After the ink ribbon supply roll 411 and the ink ribbon take-up roll 412 are mounted on the ink ribbon mounting means 410, the ink ribbon supply roll 411 and the ink ribbon take- The ink ribbon supply roll 411 or the ink ribbon take-up roll 412 is preferably provided with the adjustment means 413 so as to adjust the tension of the ink ribbon take-up roll 412. The adjusting means 413 rotates the ink ribbon supply roll 411 so as to wind the ink ribbon RB to the ink ribbon supply roll 411 or supply the ink ribbon RB from the ink ribbon supply roll 411 The tension of the ink ribbon RB can be adjusted. The adjusting means 413 also includes an ink ribbon winding roll 412 for winding the ink ribbon RB on the ink ribbon winding roll 412 or supplying the ink ribbon RB from the ink ribbon winding roll 412 The tension of the ink ribbon RB can be adjusted by rotating the ink ribbon RB.

The adjusting means 413 is provided on the upper side of the ink ribbon supply roll 411 and / or the ink ribbon take-up roll 412 so as to cover the ink ribbon supply roll 411 and / or the ink ribbon take-up roll 412 in the form of a lid. The ink ribbon supply roll 411 and / or the ink ribbon take-up roll 412 are rotated and the ink ribbon RB is rotated by the rotation of the adjustment means 413 by engaging with the main column, .

That is, the ink ribbon supply roll 411 and the ink ribbon take-up roll 412 each have a roll shape in which the ink ribbon RB can be wound around the central axis thereof and can be rotated by driving the motor about the central axis . It is more preferable that the motors for rotating the ink ribbon supply roll 411 and the ink ribbon take-up roll 412 are separately provided and controlled.

The head mounting means 420 is provided with a thermal head HD and the ink ribbon supply roll 411 and the ink ribbon take-up roll 412 are attached to the two connecting rods 700 protruding from the lower portion of the head mounting means 420. [ The ink ribbon attachment means 410 is coupled to the ink ribbon and the head mounting means 400, respectively.

Fig. 6 is a print explanatory view of the thermal head (HD) of the present invention.

6, the thermal head HD is brought close to the ink ribbon RB between the ink ribbon supply roll 411 and the ink ribbon take-up roll 412, and the ink ribbon RB Is heated by the head (HD), and the ink on the opposite surface is transferred.

In addition, the ink ribbon RB is moved by the rotation of the engagement rod 700 protruding from the lower portion of the head mounting means 420.

Hereinafter, the operation of the thermal transfer printer for a film according to one preferred embodiment of the present invention will be described in detail.

In the thermal transfer printer for a film of the present invention, when the film is fed, the film feeding means 200, the drum 100, and the film winding means 300 are rotated, thereby moving the film FL. The ink ribbon supply roll 411 and the ink ribbon take-up roll 412 are rotated so that the ink ribbon RB after the transfer of the ink to the film FL is completed is transferred from the ink ribbon supply roll 411 to the ink ribbon supply roll 411. [ To the ribbon take-up roll 412.

The thermal transfer printer for a film according to the present invention is characterized in that the film FL supplied from the film supply means 200 moves along the outer periphery of the drum 100 and a plurality of ink ribbon mounting means 410 of the ink ribbon RB can be sequentially transferred to the same print object on the film FL.

That is, the film FL to be printed is continuously supplied, and a large number of printing objects are successively printed on the continuously supplied film FL. At this time, the ink of the ink ribbon RB having different colors sequentially is sequentially transferred to one printing object, and a plurality of colors are finally printed.

However, according to the present invention, the ink of the ink ribbon RB mounted on each of the plurality of ink ribbon mounting means 410 can be simultaneously transferred to another position on the film FL. For example, if there are seven ink ribbon mounting means 410, seven printing objects can be simultaneously printed by a plurality of heads HD using inks of different colors.

In addition, according to the present invention, when the number of colors is not sufficient even if a plurality of ink ribbon mounting means 410 that can be disposed around the drum 100 is used, Thereby enabling additional color printing.

In this case, it is necessary to print a marker at the time of the first printing before the replacement of the ink ribbon mounting means 410 and arrange an optical sensor (not shown) at the position of one ink ribbon and head mounting means 400 have. The drum 100 is rotated in the direction opposite to the rotating direction of the drum 100 at the time of printing so as to be rotated from the film winding means 300 to the film feeding means 200 direction So that the film FL is returned (rotated). It goes without saying that the film winding means 300 and the film feeding means 200 also need to rotate in the direction opposite to the printing direction when the film FL is conveyed. After the transfer of the film FL, alignment of the film FL can be achieved by recognizing the marker using an optical sensor.

The film FL fed from the film feeding means 200 again moves along the outer periphery of the drum 100 after the film FL is fed from the film winding means 300 toward the film feeding means 200, The ink of the ink ribbon RB mounted on the ink ribbon mounting means 410 of the ink ribbon RB can be transferred onto the film FL.

In the present invention, an ink ribbon (RB) in which a metal color is coated on a film (FL) may be used by applying a metal to the film. Note that in the case of silkscreen printing, metallic color printing is not possible.

Each of the heads (HD) of the present invention is capable of simultaneously carrying out thermal transfer for a plurality of points arranged in a line in the width direction of the ink ribbon (RB) mounted on the ink ribbon mounting means (410). In other words, rather than performing thermal transfer in units of points, it is possible to thermally transfer a plurality of points in a line unit according to input image information, thereby achieving a further improved printing speed.

As described above, according to the thermal transfer printer for a film of the present invention, a single printing object is successively printed by a plurality of heads (HD) while adopting a thermal transfer printer system, The printing speed is improved.

100: drum 200: film feeding means
300: Film winding means 400: Ink ribbon and head mounting means
500: display means 600: support mechanism
700: coupling rod
410: ink ribbon mounting means 420: head mounting means
411: Ink ribbon supply roll 412: Ink ribbon take-up roll
413:
RB: Ink ribbon HD: Head
FL: Film

Claims (11)

A rotatable drum;
A plurality of ink ribbon mounting means disposed around the outer periphery of the drum and capable of mounting an ink ribbon;
Film supply means for supplying a film before printing; And
And film winding means for winding the film after printing,
Wherein a film before printing is fed from the film feeding means, a film is printed by taking the outer periphery of the drum, and a film after printing is taken up by the film winding means. The method according to claim 1,
In the thermal transfer printer for film,
Further comprising a display means for maintaining the film after printing in a flat section for a predetermined period of time before the film after printing out of the outer periphery of the drum is wound around the film winding means. 3. The method of claim 2,
Wherein the display means is provided with a lighting device so as to emit the film after printing. The method according to claim 1,
In the thermal transfer printer for film,
The film supplied from the film supply means moves along the outer periphery of the drum and the ink of the ink ribbon each mounted on the plurality of ink ribbon mounting means as the film moves moves sequentially Wherein the thermosensitive recording medium is a thermosensitive recording medium. The method according to claim 1,
In the thermal transfer printer for film,
Wherein ink of the ink ribbon mounted on each of the plurality of ink ribbon mounting means can be simultaneously transferred to another position on the film. The method according to claim 1,
In the thermal transfer printer for film,
And the drum is rotated in a direction opposite to the rotating direction of the drum at the time of printing so that the film can be fed from the film winding means toward the film feeding means. The method according to claim 6,
The film supplied from the film supply means again moves along the outer periphery of the drum after the film is returned from the film winding means to the film supply means, Wherein the ink can be transferred onto the film. The method according to claim 1,
In the thermal transfer printer for film,
A plurality of heads,
Wherein each of the plurality of heads includes:
Characterized in that thermal transfer is simultaneously possible for a plurality of points in a line in the width direction of the ink ribbon mounted on the ink ribbon mounting means. The method according to claim 1,
The ink ribbon
An ink ribbon supply roll for supplying the ink ribbon, and an ink ribbon winding roll for winding the used ink ribbon,
Wherein the ink ribbon supply roll and the ink ribbon take-up roll are mounted on the ink ribbon mounting means. 10. The method of claim 9,
Wherein at least one of the ink ribbon supply roll or the ink ribbon take-
And adjustment means for adjusting the tension of the ink ribbon between the ink ribbon supply roll and the ink ribbon take-up roll after mounting the ink ribbon supply roll and the ink ribbon take-up roll to the ink ribbon mounting means A thermal transfer printer for a film. 11. The method of claim 10,
Wherein the adjusting means comprises:
Rotating the ink ribbon supply roll to wind the ink ribbon to the ink ribbon supply roll, or to supply the ink ribbon from the ink ribbon supply roll,
Wherein the tension of the ink ribbon is controlled by rotating the ink ribbon take-up roll so as to wind the ink ribbon on the ink ribbon take-up roll or to supply the ink ribbon from the ink ribbon take-up roll. .
KR1020160016125A 2016-02-12 2016-02-12 Thermal transfer printer for film KR20170094868A (en)

Priority Applications (1)

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KR1020160016125A KR20170094868A (en) 2016-02-12 2016-02-12 Thermal transfer printer for film

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Application Number Priority Date Filing Date Title
KR1020160016125A KR20170094868A (en) 2016-02-12 2016-02-12 Thermal transfer printer for film

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220167690A (en) * 2021-06-14 2022-12-21 한국알프스 주식회사 Antenna pattern making device for back cover of electronic devices, how to make back cover of electronic devices equipped with antennas, and back cover of electronic devices equipped with antennas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220167690A (en) * 2021-06-14 2022-12-21 한국알프스 주식회사 Antenna pattern making device for back cover of electronic devices, how to make back cover of electronic devices equipped with antennas, and back cover of electronic devices equipped with antennas

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