KR20150118027A - Apparatus for film transfer - Google Patents

Apparatus for film transfer Download PDF

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Publication number
KR20150118027A
KR20150118027A KR1020150045972A KR20150045972A KR20150118027A KR 20150118027 A KR20150118027 A KR 20150118027A KR 1020150045972 A KR1020150045972 A KR 1020150045972A KR 20150045972 A KR20150045972 A KR 20150045972A KR 20150118027 A KR20150118027 A KR 20150118027A
Authority
KR
South Korea
Prior art keywords
transfer
transfer film
roll
winding roll
film
Prior art date
Application number
KR1020150045972A
Other languages
Korean (ko)
Inventor
김덕기
김재경
Original Assignee
주식회사 윌리언스
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 윌리언스 filed Critical 주식회사 윌리언스
Publication of KR20150118027A publication Critical patent/KR20150118027A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

The present invention relates to a film transfer apparatus, and more particularly, to a film transfer apparatus capable of maintaining a constant tension applied to a transfer film to prevent transfer failure in advance.
The film transfer apparatus according to the present invention comprises: a take-up roll on which a transfer film is wound; A winding roll on which a transfer film unwound from the take-up roll is wound; A feeding motor for rotating the winding roll to transfer the transfer film from the winding roll to the winding roll; A transfer table provided between the winding roll and the winding roll, for vacuum-attracting the transfer film to be transferred, so that the transfer film adheres to the substrate placed on the upper surface; And a tension holding motor which rotates the winding roll in a direction opposite to the winding roll and keeps the tension of the transfer film fed from the winding roll to the winding roll at a constant level.

Description

[0001] APPARATUS FOR FILM TRANSFER [0002]

The present invention relates to a film transfer apparatus, and more particularly, to a film transfer apparatus capable of maintaining a constant tension applied to a transfer film to prevent transfer failure in advance.

Conventionally, spray transfer or silk screen printing has been used as a method of forming various patterns such as a logo of a manufacturer to give visual effects to the surface of various home electronic devices such as washing machines and refrigerators and communication devices such as smart phones.

However, due to the limitation of the spraying method, the spray transfer method has difficulty in implementing various designs, and the sprayed material has spread to the atmosphere, causing environmental pollution.

In addition, the silk screen printing method can not repeatedly print the same design in the same color, so that it is not possible to mass-produce products printed with the same color pattern.

In order to solve such a conventional problem, a method using a transfer film having a predetermined decoration pattern formed on a surface thereof has been used in recent years to provide a desired decoration effect.

However, in the method using the transfer film, as the transfer process is performed while winding the transfer film using the rollers, different tensile forces are applied to the transfer film on the transfer film, There has been a problem that a transfer failure which can not accurately form a pattern occurs.

In order to solve the above-mentioned problems, the present invention provides a transfer roll comprising: a take-up roll on which a transfer film is wound; A winding roll on which a transfer film unwound from the take-up roll is wound; A feeding motor for rotating the winding roll to transfer the transfer film from the winding roll to the winding roll; A transfer table provided between the winding roll and the winding roll, for vacuum-attracting the transfer film to be transferred, so that the transfer film adheres to the substrate placed on the upper surface; And a tension holding motor for rotating the winding roll in a direction opposite to the winding roll to keep the tension of the transfer film fed from the winding roll to the winding roll at a constant level.

The apparatus may further include a tension sensing roll sensor for measuring the tension applied to the transfer film in contact with the transfer film transferred from the winding roll to the winding roll.

The first and second support frames extend to the height of the transfer table on one side of the take-up roll and the take-up roll, and whether the transfer film And first and second position alignment sensors for confirming the skew of the transfer film.

Between the roll and the transfer table, first and second pitch mark sensors may be provided for detecting pitch marks formed on the transfer film in order to distinguish pattern regions.

A third support frame is provided on one side of the first support frame and extends horizontally toward the transfer table. A third support frame is provided on the third support frame to detect a pitch mark formed on the transfer film to distinguish the pattern area. 1, 2 pitch mark sensors can be installed.

The film transfer device according to the present invention can maintain the tension applied to the transfer film constant by using the tension holding motor when the transfer process is performed, thereby preventing the transfer failure due to uneven application of the tension to the transfer film.

1 is a view showing an overall structure of a film transfer apparatus according to the present invention.
2 is a view showing a state in which tension applied to a transfer film is controlled by a tension holding motor according to the present invention.

Hereinafter, preferred embodiments of the present invention in which the above objects can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and additional description thereof will be omitted in the following.

1 is a view showing an overall structure of a film transfer apparatus according to the present invention.

1, a film transfer apparatus according to the present invention includes a winding roll 100, a winding roll 200, a feeding motor 300, a transfer table 400, a tension holding motor 500, .

The winding roll 100 is a device in which a transfer film 10, which is pressed onto a substrate of various materials such as glass, synthetic resin or the like, and forms a predetermined pattern on a substrate, is wound, 10) is released.

Here, the transfer film 10 is formed by sequentially laminating a release layer, a primer layer, and an ink layer on a raw film of synthetic resin such as PET (polyethylene terephthalate) or PC (polycarbonate) having heat resistance and chemical resistance As a kind of decorative film, a print layer or the like formed on the raw film is transferred onto a substrate by a pressure roller (not shown) to form a decorative pattern such as characters, figures or the like on the substrate.

The winding roll 200 rotates and winds up the transfer film 10 unwound from the winding roll 100 to recover it. That is, the transfer film 10 unwound from the unwinding roll 100 is wound up again on the winding roll 200 as the transfer process proceeds. To this end, the front end of the transfer film 10 wound on the roll 100 by the operator before the transferring process is pre-wound on the winding roll 200.

The feeding motor 300 rotates the winding roll 200 to transfer the transfer film 10 from the winding roll 100 to the winding roll 200 and at the same time the transfer film 10 To be wound on the winding roll 200. [

This feeding motor 300 is connected to the center axis 210 of the winding roll by a belt 310. Accordingly, when the feeding motor 300 starts to operate, the rotational force of the feeding motor 300 is transmitted to the winding roll 200 through the belt 310 to rotate the center shaft 210 of the winding roll, So that the transfer film 10 is wound around the photosensitive drum 200 while rotating. At this time, the transfer film 10 wound on the unwinding roll 100 naturally is unwound from the unwinding roll 100 and fed toward the winding roll 200.

Of course, the power transmission structure of the feeding motor 300 can be variously modified. For example, the feeding motor 300 may be connected to the central axis 210 of the take-up roll directly without being connected to the center axis 210 of the take-up roll through the belt 310.

The transfer table 400 is provided between the take-up roll 100 and the take-up roll 200. The transfer table 400 is provided between the take-up roll 100 and the take-up roll 200, ) Is vacuum-adsorbed on the upper surface.

Specifically, when the substrate is transferred onto the upper surface of the transfer table 400 as the transfer process is started, the transfer sheet is vacuum-adsorbed on the upper surface of the transfer sheet using a vacuum pump or the like installed therein. Therefore, although not shown, the transfer film vacuum-adsorbed on the transfer table 400 is brought into close contact with the upper surface of the substrate. In this state, the pressure roller (not shown) provided on the transfer table 400 is lowered, 10 are thermally pressed, a decorative pattern of a predetermined pattern is formed on the substrate.

The tension holding motor 500 rotates the winding roll 100 in a direction opposite to the winding roll 200 to increase the tension applied to the transfer film 10 fed from the winding roll 100 to the winding roll 200 And keeps them constant.

As described above, as the feeding motor 300 rotates the take-up roll 200, when the transfer film 10 is conveyed, different tensile forces are applied to the transfer film 10 for each part. That is, a strong tension is applied to the portion of the transfer film 10 close to the winding roll 200, and a relatively weak tension is applied to the portion of the transfer film 10 on the side of the take-up roll 100 where the transfer film 10 is unwound do. In this case, the extent to which the transfer film 10 is stretched varies depending on the portion of the transfer film 10, so that the pattern region formed on the transfer film 10 can not be precisely positioned on the upper surface of the substrate, thereby causing defective transfer.

2 is a view showing a state in which tension applied to a transfer film is controlled by a tension holding motor according to the present invention.

2, when the winding roll 200 is rotated in the clockwise direction by the feeding motor 300 and the transfer film 10 is conveyed in the A direction, It is preferable to adjust the tensile force applied to the transfer film 10 to be constant by rotating the film 100 in the counterclockwise direction with the take-up roll 200.

At this time, the tension F1 applied to the transfer film 10 as the tension holding motor 500 rotates the take-out roll 100 naturally moves the feeding motor 300 so that the transfer film 10 can be continuously conveyed in the A direction. Should be kept smaller than the tensile force F2 applied to the transfer film 10 as the take-up roll 200 is rotated.

The tension motor 500 is connected to the center axis 110 of the take-up roll by the belt 510 similar to the feeding motor 300 so that the central axis 110 of the take- . Of course, the tension-maintaining motor 500 may also be connected to the center shaft 110 of the take-up roll through the belt 510 without being connected to the center axis 110 of the take- The transmission structure can also be varied.

Meanwhile, the film transfer apparatus according to the present invention may further include a tension sensing roll sensor 600 for measuring a tension applied to the transfer film 10.

The tension sensing roll sensor 600 measures the tension applied to the transfer film 10 by contacting the transfer film 10 conveyed from the take-up roll 100 to the take-up roll 200, Continuously informs you whether or not you are.

That is, the tension sensing roll sensor 600 senses the tension F2 applied to the transfer film 10 by the feeding motor 300 and the tension F1 applied to the transfer film 10 in the direction opposite to the transfer film 10 by the tension- To thereby confirm whether or not predetermined tension is applied to the transfer film 10.

Accordingly, the operator controls the operation of the tension-maintaining motor 500 when the tension value measured by the tension-sensing roll sensor 600 shows a difference from the preset tension value. Of course, the operation of keeping such a tension constant can be automatically performed by a motor control unit (not shown) or the like.

The first and second support frames 700 and 800 extending to the height of the transfer table 400 are installed on one side of the take-up roll 100 and the take-up roll 200. The first and second support frames 700 and 800, First and second position alignment sensors 710 and 810 are installed on the upper portion of the transfer film 10 to confirm whether the transfer film 10 is accurately conveyed and the transfer film 10 meandering.

Specifically, the first position alignment sensor 710 detects the skew of the transfer film 10 that is installed at the upper end of the first support frame 700 and is transferred from the take-up roll 100 to the transfer table 400, The second position alignment sensor 810 is installed at the upper end of the first support frame 700 and senses the skew of the transfer film 10 transferred from the transfer table 400 to the take-up roll 200, ) Is correctly carried out.

First and second pitch mark sensors 910 and 920 are provided between the unwinding roll 100 and the transfer table 400 to detect the pattern area of the transfer film 10 transferred to the transfer table 400.

In the transfer film 10, decorative patterns to be transferred to the substrate are successively formed at regular intervals, and pitch marks (not shown) for distinguishing the respective pattern areas are formed between the respective patterns. Therefore, if the pattern area of the transfer film 10 is detected by using the first and second pitch mark sensors 910 and 920, the position at which the transfer film 10 is currently transferred can be accurately known, The pattern region can be precisely positioned in the chamber immediately above the substrate, so that the transfer can be accurately performed on the substrate.

Specifically, when the first and second pitch mark sensors 910 and 920 confirm the pitch marks formed on the transfer film 10 when the transferring process is proceeding, it means that the transfer film 10 is positioned in the upper right of the substrate. After the film 10 is stopped, a process of vacuum-adsorbing the transfer film 10 to the transfer table 400 is performed.

The first and second pitch mark sensors 910 and 920 may be installed in a third support frame 720 extending horizontally from one side of the first support frame 700 toward the transfer table 400.

Reference numerals R1 and R2 denote auxiliary rollers for switching the conveying direction of the transfer film 10 unwound from the take-up roll 100 and conveyed to the transfer table 400. R3, R4 and R5 are wound on the take- And auxiliary rollers for switching the conveying direction of the recovered transfer film 10.

Hereinafter, the process of transferring by the film transfer apparatus according to the present invention will be briefly described.

First, when the transferring process is started, the feeding motor 300 rotates the winding roll 200 so that the transfer film 10 wound on the winding roll 100 is released and transferred toward the transfer table 400.

Here, the transfer of the transfer film 10 is performed in such a state that the tension holding motor 500 rotates the take-up roll 100 in the direction opposite to the take-up roll 200 so that predetermined tension is applied to the transfer film 10, The tension applied to the transfer film 10 is continuously confirmed by the tension sensing roll sensor 600. [

Next, when the first and second pitch mark sensors 910 and 920 detect a pitch mark formed on the transfer film, a pattern region of the transfer film 10 is positioned in a region on the substrate placed on the transfer table 400 The transfer of the transfer film 10 is stopped and the transfer film 10 is vacuum-adsorbed on the transfer table 400. [

At this time, the first and second position alignment sensors 710 and 810 detect whether the transfer film 10 meanders and check whether the transfer film 10 is normally transferred.

Next, the pressure roller located in the upper right room of the transfer table 400 is lowered to heat-press the transfer film 10 to form a certain pattern on the substrate.

Next, the pressing roller is returned to its original position and the feeding motor 300 is operated to rotate the winding roll 200, thereby winding the transferred film portion, and at the same time, a new transfer film portion is placed on the upper side of the transfer table 10 Repeat the process for positioning. Of course, at this time, the tension holding motor 500 also starts to operate so that the tension value applied to the transfer film 10 is kept constant.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. And are also included in the scope of the present invention.

10: Transfer film 100: Pitch roll
110, 210: center shaft 200: winding roll
300: feeding motor 310, 510: belt
400: transfer table 500: tension holding motor
600: Tension detection roll sensor 700, 800: First and second support frames
710,810: First and second position alignment sensor 720: Third support frame
910: first pitch mark sensor 920: first pitch mark sensor

Claims (5)

A take-up roll on which the transfer film is wound;
A winding roll on which a transfer film unwound from the take-up roll is wound;
A feeding motor for rotating the winding roll to transfer the transfer film from the winding roll to the winding roll;
A transfer table provided between the winding roll and the winding roll, for vacuum-attracting the transfer film to be transferred, so that the transfer film adheres to the substrate placed on the upper surface; And,
And a tension holding motor which rotates the winding roll in a direction opposite to the winding roll and keeps the tension of the transfer film fed from the winding roll to the winding roll at a constant level. The method according to claim 1,
And a tension sensor roll sensor for measuring a tension applied to the transfer film in contact with the transfer film conveyed from the take-up roll to the winding roll. The method according to claim 1,
On one side of the take-up roll and the take-up roll, first and second support frames extending to the height of the transfer table are provided,
Wherein the first and second support frames are provided with first and second position alignment sensors for confirming whether the transfer film is accurately transferred and whether the transfer film is meandering. The method according to claim 1,
Wherein a first and a second pitch mark sensor are provided between the roll and the transfer table to detect a pitch mark formed on the transfer film in order to distinguish the pattern area. The method of claim 3,
A third support frame extending horizontally toward the transfer table is provided on one side of the first support frame,
Wherein the first and second support frames are provided with first and second pitch mark sensors for detecting pitch marks formed on a transfer film for distinguishing pattern regions.


KR1020150045972A 2014-04-11 2015-04-01 Apparatus for film transfer KR20150118027A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140043842 2014-04-11
KR20140043842 2014-04-11

Publications (1)

Publication Number Publication Date
KR20150118027A true KR20150118027A (en) 2015-10-21

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Application Number Title Priority Date Filing Date
KR1020150045972A KR20150118027A (en) 2014-04-11 2015-04-01 Apparatus for film transfer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170100978A (en) * 2016-02-26 2017-09-05 이상운 Roll printing apparatus of medical plastic bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170100978A (en) * 2016-02-26 2017-09-05 이상운 Roll printing apparatus of medical plastic bag

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