JPH07266542A - Method and apparatus for transferring image - Google Patents

Abstract

PURPOSE:To peel off smoothly a transfer film from a transfer medium without generating any fold or the like thereon after transferring an image to the transfer medium. CONSTITUTION:In an image transfer device 1 equipped with a carrying mechanism 13 which carries a transfer film 5 in its longitudinal direction on a transfer medium 9, a transfer roller 35 which transfers an image on the transfer film 5 to the transfer medium 9 by heating and pressurizing the transfer film 5, and a peeling roller 37 which peels off the transfer film 5 from the transfer medium 9 on a more downstream side in a carrying direction of the transfer film 5 than the transfer roller 35, a shaft center of the peeling roller 37 is arranged almost parallel to a face of the transfer film 5 and obliquely in a width direction of the transfer film 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image transfer method and apparatus for transferring an image on a transfer film by heating and pressing the image on the transfer film.

[0002]

2. Description of the Related Art A method is known in which a desired image is transferred and formed on an object to be transferred by using a transfer ribbon having a sublimable dye uniformly coated on the entire surface and selectively heating locally by a thermal head based on image data. is there. However, the material that can be dyed with the sublimable material is limited, and it can be applied only to the transferred material of the limited material such as polyester, acrylic resin, and polyvinyl chloride.

Therefore, in an image writing section using a transfer ribbon of a sublimable dye and a thermal head, an image is first written on a transfer film having an adhesive layer, and then an image on the transfer film is transferred by a transfer roller in the transfer section. There has been proposed a method of transferring the image to the transfer target by heating and pressing the transfer target together with the adhesive layer using. According to this method, by selecting the adhesive layer, it is possible to transfer and form an image regardless of the material of the transferred material.

[0004]

However, in the image transfer method using the transfer film as described above, the transfer film is heated and pressed against the transfer target during transfer, and therefore, when the transfer film is peeled off after transfer, The resistance between the transfer film and the transfer target is large, and for example, when the transfer target is a thin paper piece or the like, the transfer film is difficult to peel off from the transfer target,
Problems such as breakage or habit of the transferred material may occur.

Further, in the image transfer system using a transfer film, the transfer target is placed on the transfer table before the image transfer.
It is necessary to take out the transferred material from the transfer table after the transfer and replace the transferred material on which a new transferred material is placed. Therefore, an important problem is how to secure a space for performing the work of replacing the transfer target without increasing the size of the device. In addition, in order to be able to perform the work to replace the transfer target, it is necessary to move the members around the transfer unit, which causes loss time, so the work to replace the transfer target can be performed without making any special movement to the device. It is desirable to be able to do so in order to improve the transfer efficiency of the image.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to transfer a film to a transfer medium without transferring the transfer film after the image is transferred to the transfer medium. An object of the present invention is to provide an image transfer method and apparatus capable of smoothly peeling off a transfer target. Further, an object of the present invention is to provide an image transfer method which can easily secure a space for replacing a transfer target without increasing the size of the apparatus and can efficiently transfer an image without causing loss time. To provide.

[0007]

In order to achieve the above object, the invention according to claim 1 conveys a transfer film in its longitudinal direction and positions a transfer film portion on which an image is formed on a transfer object. In the image transfer method, the transfer film portion on which the image is formed is transferred to the transfer target by heating and pressing the transfer film onto the transfer target, and the transfer film is peeled off from the transfer target after the transfer of the image. When peeled off, the peeling is performed obliquely with respect to the width direction of the transfer film. In the invention according to claim 2, the transfer target is a booklet in which pieces of paper are bound, the image is transferred onto the piece of paper in which the booklet is opened, and the transfer film is peeled from the side in which the pieces of paper are bound. It is characterized by

According to a third aspect of the invention, there is provided a transfer mechanism for transferring the transfer film onto the transfer object in the longitudinal direction thereof, and a transfer for transferring the image on the transfer film to the transfer object by heating and pressing the transfer film. In an image transfer device including a roller and a peeling roller that peels the transfer film from the transfer target on the downstream side of the transfer roller in the transporting direction of the transfer film, the axis of the peeling roller is set to the surface of the transfer film. Are substantially parallel to each other and are arranged obliquely with respect to the width direction of the transfer film. Also,
According to a fourth aspect of the present invention, the tip of the peeling roller extends to the outside of the transfer film. Further, in the invention according to claim 5, a first guide roller for changing the conveying direction of the transfer film wound around the peeling roller is arranged in parallel with the peeling roller in the vicinity of the peeling roller. Characterize. Further, in the invention according to claim 6, the second guide roller, which changes the transport direction of the transfer film, is line-symmetrical to the first guide roller on the downstream side of the first guide roller in the transport direction of the transfer film. It is characterized by being arranged.

According to a seventh aspect of the invention, the transfer film is conveyed in the longitudinal direction of the transfer film so that the transfer film portion on which the image is formed is positioned on the transfer target, and the transfer film portion on which the image is formed is transferred. An image transfer in which the roller is used to heat and press the transfer target to transfer the image to the transfer target, and the peeling roller is used to peel the transfer film from the transfer target on the downstream side of the transfer roller in the conveying direction of the transfer film. In the method, at the time of transferring the image, the positions of the transfer roller and the peeling roller are fixed, and the transfer target is moved from the upstream side to the downstream side in the transport direction at the same speed as the transfer film. Is characterized by. Further, the invention according to claim 8 is characterized in that the peeling roller can change the conveying direction of the transfer film to above the transfer target.

[0010]

In the invention described in claims 1 to 6, since the transfer film is peeled off obliquely with respect to the width direction of the transfer film, the resistance at the time of peeling can be reduced, and there is a problem such as folding of the transferred body. The transfer film is smoothly peeled off from the transfer target without causing the transfer film. According to the seventh and eighth aspects of the invention, on the moving locus of the transfer target, on the upstream side or the downstream side of the transfer roller and the peeling roller in the transport direction of the transfer film,
It is possible to easily secure a space for replacing the transferred body, and to replace the transferred body without causing any special movement of the apparatus, so that the image transfer efficiency can be improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method according to the present invention will be described below with reference to the apparatus according to the accompanying drawings. 1 is a front view of the image transfer device, and FIG. 2 is a plan view of the same. The image transfer device 1 includes an image writing unit 7 that writes an image on the transfer film 5 via the transfer ribbon 3, and a transfer unit 11 that transfers the image on the transfer film 5 to the transfer target 9. Is fed from the image writing section 7 to the transfer section 11 along the longitudinal direction of the transfer film 5 by the transport mechanism 13.

The image writing unit 7 includes a rotary drum 15 around which the transfer film 5 is wound, a pair of fixing rollers 17 for fixing the transfer film 5 on the rotary drum 15 in a wound state, and a rotary drum 15. It is composed of a thermal head 19 arranged to face each other, a supply reel 21 and a take-up reel 23 of the transfer ribbon 3, and the rotating drum 15 and the reels 21 and 23 are supported on the base 25 side of the apparatus. .
The transfer ribbon 3 is coated with magenta, yellow, cyan, and black paint individually in predetermined areas, and is wound around the take-up reel 23 from the supply reel 21 through the head of the thermal head 19. In the image writing unit 7,
In a state where the transfer film 5 is wound around the rotating drum 15 and fixed by the fixing roller 17, the rotating drum 15 is reciprocally rotated four times, and when the rotating drum 15 rotates in the forward direction, the thermal head 19 transfers an image through the transfer ribbon 3. Is formed on the transfer film 5, the thermal head 19 is separated from the rotary drum 15 when the rotating drum 15 is rotated in the reverse direction, and the transfer ribbon 3 is drawn out, so that images of magenta, yellow, cyan, and black paints are sequentially transferred onto the transfer film 5. The color images are formed by overlapping.

The transfer film 5 is transparent, and an adhesive layer is formed on the surface on which an image is written by the thermal head 19 and the transfer ribbon 3. The transport mechanism 13 includes a supply reel 27 around which the transfer film 5 is wound, a take-up reel 29 that winds up the transfer film 5, and the like.
The transfer film 5 is wound around the transfer reel 11 from the supply reel 27 through the image writing unit 7 and the guide roller 30 and then wound on the take-up reel 29. In this embodiment, the transfer film 5 can be unwound from the supply reel 27 and taken up by the take-up reel 29, or unwound from the take-up reel 29 and taken up by the supply reel 27. Incidentally, in order to prevent the transfer film 5 from sagging or cutting when the rotary drum 15 is reciprocally rotated in the image writing unit 7, a tension mechanism may be optionally provided on the upstream side and the downstream side of the image writing unit 7.

The transfer section 11 is composed of a transfer table 31 on which the transfer target 9 is placed, a moving means 33 for moving the transfer table 31, a transfer roller 35, a peeling roller 37 and the like. As shown in a perspective view of FIG. 3, the transfer-receiving member 9 is a booklet 901 mainly made of paper in the embodiment, and the transfer table 31 is provided with a recessed portion 3101 to the extent that the booklet 901 is approximately half filled. Transfer table 3
The booklet 901 is positioned with respect to 1. The moving means 33 includes a feed screw 39 screwed to the lower portion of the transfer table 31 and the feed screw 39 supported on the base 25 side.
A pair of guide shafts 41 that extend in parallel with each other and are slidably coupled to the lower portion of the transfer table 31, and a feed screw 39.
It is composed of a motor 43 and the like for reversing the normal direction. The motor 43 is driven by a control device (not shown), and the motor 4
By the driving of No. 3, the transfer table 31 moves the transfer start position (a).
And the retreat position (b) are linearly reciprocated, and when the transfer table 31 moves from the transfer start position (a) to the retreat position (b), the transfer film 5 is moved in the downstream direction. The movement of the transfer film 5 is controlled so as to follow the movement and to move in synchronization with the transfer film 5 at the same speed.

The transfer roller 35 is rotatably supported by the tip of an arm 45, and a heater or the like is provided inside. The arm 45 is swingably supported on the base 25 side, and an actuator such as an air cylinder is connected to the arm 45, and the transfer roller 3 is operated by the operation of the actuator.
5 is configured to move from the pressure contact position (c) to the retracted position (d) and from the retracted position (d) to the pressure contact position (c). Then, with the transfer roller 35 in the pressure contact position (C), the transfer roller 35 is positioned on the downstream side of the transfer target 9 on the transfer table 31 waiting at the transfer start position (A), and the transfer table 31 moves in the downstream direction. In doing so, it is arranged so as to come into pressure contact with the transferred body 9 on the transfer table 31.

The peeling roller 37 is rotatably supported on the base 25 side, and is disposed on the transfer roller 35 downstream of the transfer film 5. The peeling roller 37
Has its axis parallel to the upper surface of the transfer film 5, and
The transfer film 5 is arranged obliquely with respect to the width direction. More specifically, the booklet 901 has the paper piece 901A to which an image is to be transferred opened and the booklet 901.
The side 901B on which 1A is bound is placed on the transfer table 31 in a direction away from the base 25. The peeling roller 37 is obliquely arranged so that the portion located on the side 901B where the paper pieces 901A are bound is located upstream of the portion located on the edge side in the transport direction of the transfer film 5. The inclination angle of the peeling roller 37 with respect to the width direction of the transfer film 5 is preferably 45 degrees or less.
Further, in the embodiment, the tip end 37A of the peeling roller 37 is formed to have a length protruding outward in the width direction of the transfer film 5 with respect to the outer edge of the transfer film 5 in the obliquely arranged state. .

A first guide roller 47 is disposed above the peeling roller 37, and second and third guide rollers 49, 5 are arranged vertically below the first guide roller 47.
1 is provided, and the transfer film 5 is provided with the transport mechanism 1
It is wound around the take-up reel 29 via the guide rollers 47, 49, 51 forming part 3. The first guide roller 47 is arranged parallel to the peeling roller 37 and obliquely with respect to the width direction of the transfer film 5. The second and third guide rollers 49, 51 are the peeling rollers 3
7, and the second and third guide rollers 49 and 51 with respect to the peeling roller 37 and the first guide roller 47 are arranged obliquely with respect to the width direction of the transfer film 5.
When arranged in a plan view, they are arranged so as to be symmetrical with respect to each other.

Next, the movement of the image transfer device 1 will be described. At the retracted position (b) of the transfer table 31, the booklet 901 is placed on the transfer table 31 in an open state, and in this state, the transfer table 31 is moved by the moving means 33.
The transfer roller is moved to the transfer start position (a), and at this time, the transfer roller 3
5 is located at the retracted position (d). On the other hand, the transfer film 5 is transported to the downstream by the transport mechanism 13 after the color image is written in the image writing section 7, and the transfer film 5 portion in which the color image is written is located at the transfer start position (a). The transfer table 5 is conveyed onto the paper piece 901A of the transfer table 31, and the position of the paper piece 901A with the transfer film 5 portion in which the color image is written is aligned.

Then, the transfer roller 35 is pressed to the contact position (C).
The transfer film 5 is moved to the downstream side and the transfer table 31 is moved to the retracted position (b) side in synchronization with each other at the same speed. When the transfer table 31 and the piece of paper 901A move below the transfer roller 35,
The transfer film 5 is pressed against the paper piece 901A while being heated by the transfer roller 35, and the image on the transfer film 5 is transferred to the paper piece 901A.

Even after the transfer of the image, the transfer film 5 and the transfer table 31 continue to move downstream at the same speed, and the transfer roller 35 moves to the retreat position (d) after the paper piece 901A has passed. When the piece of paper 901A reaches the peeling roller 37 as the transfer table 31 moves, the transfer film 5 is peeled off diagonally with respect to the width direction of the transfer film 5 by the peeling roller 37, and the transfer film 5 is peeled off from the peeling roller 37. It is wound around the first guide roller 47 and is conveyed upward, and (e) in the figure shows a missing portion where the color image is transferred to the transfer film 5. Then, the transfer film 5 is wound from the first guide roller 47 onto the second and third guide rollers 49 and 51, and then wound on the take-up reel 29, and then separated from the peeling roller 37 to the first guide roller 47.
2, when the second guide roller 49 and the third guide roller 51 are wound around, the axes of the rollers 37, 47, 49, 51 are aligned with each other as shown in FIG.
The position in the width direction of the transfer film 5 is shifted according to the tilt angle and is returned to the original position because of the inclination with respect to the width direction.

When the transfer table 31 reaches the retreat position (b), feeding of the transfer film 5 is stopped, the booklet 901 is replaced at the retreat position (b), and the next booklet 901 is placed on the transfer table 31. . And
The transfer table 31 is moved to the transfer start position (a) by the moving means 33, and the color images are sequentially transferred to the booklet 901 as described above.

As described above, according to this embodiment, the peeling roller 37 is disposed obliquely with respect to the width direction of the transfer film 5,
When the transfer film 5 is peeled off after transferring the image, the peeling is performed obliquely with respect to the width direction of the transfer film 5, so that the resistance at the time of peeling becomes small, and problems such as folding the paper piece 901A do not occur. Transfer film 5 to paper piece 901
It can be peeled off smoothly from A.

Further, in the embodiment, since the tip 37A of the peeling roller 37 is formed to have a length protruding outward from the outer edge of the transfer film 5, when the transfer film 5 is peeled from the paper piece 901A, the end portion of the paper piece 901A is peeled off. Can be peeled while being pressed by the peeling roller 37, which is advantageous in smoothly peeling the transfer film 5 from the paper piece 901A. Further, in the embodiment, the transfer film 5 has the side 901B on which the paper piece 901A is bound.
Since it is peeled off from the portion located at, the paper piece 901A is less likely to be deformed than when peeled off from the edge of the paper piece 901A.
Therefore, it is advantageous to smoothly peel off the transfer film 5 without causing deformation of the paper piece 901A. In addition, the peeling roller 37
Since the second and third guide rollers 49 and 51 are arranged line-symmetrically with respect to the first guide roller 47, it is advantageous in smoothly carrying the transfer film 5 after peeling.

Further, at the time of image transfer, the positions of the transfer roller 35 and the peeling roller 37 are fixed, and the transferred body 9 is moved from the upstream side to the downstream side in the carrying direction at the same speed as the transfer film 5. As a result, it is possible to easily secure a space for replacing the transferred body 9 on the downstream side of the peeling roller 37 on the movement locus of the transferred body 9, and it is possible to downsize the apparatus. Becomes Also,
On the downstream side of the peeling roller 37, there is no constituent member for performing the transfer. Therefore, it is possible to replace the transfer target 9 without any special movement of the constituent member of the apparatus, and the loss time is reduced. It is possible to further improve the transfer efficiency of the image without causing the occurrence.

According to the present invention, as shown in FIG.
Of course, this is also applicable to a case where the card is a card 903 such as an ID card or a student ID card. Further, as shown in FIG. 5, the second and third guide rollers 49 and 51 are not arranged in line symmetry with respect to the peeling roller 37 and the first guide roller 47, but are parallel to the width direction of the transfer film 5. Alternatively, as shown in FIG. 6, the second and third guide rollers 49 and 51 may be omitted, and the transfer film 5 wound around the first guide roller 47 may be replaced with the transfer film 5. Alternatively, the winding reel 29 arranged in parallel with the width direction may be used to directly wind the winding. Further, in the embodiment, the transfer target 9 is replaced on the downstream side of the peeling roller 37, but the transfer target 9 may be replaced on the upstream side of the transfer roller 35.

[0026]

As is apparent from the above description, the present invention is an image transfer system using a transfer film, in which the axis of the peeling roller is arranged obliquely with respect to the width direction of the transfer film. When peeling, the peeling was performed obliquely with respect to the width direction of the transfer film. Therefore, the transfer film can be smoothly peeled off from the transferred body. Also,
The present invention relates to an image transfer method using a transfer film, in which the positions of the transfer roller and the peeling roller are fixed at the time of transferring an image, and the transfer target is placed at the same speed as the transfer film in the upstream side in the transport direction. To move to the downstream side. Therefore, it is possible to easily secure a space for replacing the transfer target while reducing the size of the apparatus, and it is possible to further improve the image transfer efficiency without causing loss time.

[Brief description of drawings]

FIG. 1 is a front view of an image transfer device.

FIG. 2 is a plan view of an image transfer device.

FIG. 3 is a perspective view of a transfer unit.

FIG. 4 is a perspective view of a transfer unit according to another embodiment.

FIG. 5 is a perspective view of a transfer unit according to another embodiment.

FIG. 6 is a plan view of a transfer unit according to another embodiment.

[Explanation of symbols]

 1 Image Transfer Device 3 Transfer Ribbon 5 Transfer Film 7 Image Writing Section 9 Transfer Target 11 Transfer Section 13 Conveying Mechanism 31 Transfer Table 33 Moving Means 35 Transfer Roller 37 Peeling Roller 901 Booklet 901A Paper Piece

Claims (8)

[Claims] 1. A transfer film is conveyed in the longitudinal direction of the transfer film so that a transfer film portion on which an image is formed is positioned on a transfer-receiving body, and the transfer film portion on which the image is formed is heated and pressed onto the transfer-receiving body. In an image transfer method of transferring an image to a transfer target and peeling the transfer film from the transfer target after transferring the image, when peeling the transfer film, the transfer film is peeled obliquely with respect to the width direction of the transfer film. An image transfer method characterized by. 2. The transfer target is a booklet in which pieces of paper are bound, the image is transferred onto the piece of paper in which the booklet is opened, and the transfer film is peeled off from the side where the pieces of paper are bound. Image transfer method. 3. A transport mechanism for transporting a transfer film on a transfer medium in the longitudinal direction thereof, a transfer roller for heating and pressurizing the transfer film to transfer an image on the transfer film to the transfer medium, and a transfer roller more than the transfer roller. In an image transfer device including a peeling roller that peels the transfer film from a transfer target on the downstream side in the transport direction of the transfer film, the axis of the peeling roller is substantially parallel to the surface of the transfer film, and An image transfer device, which is arranged obliquely with respect to the width direction of the film. 4. The image transfer apparatus according to claim 3, wherein the tip of the peeling roller extends to the outside of the transfer film. 5. The first guide roller for changing the conveying direction of the transfer film wound around the peeling roller is arranged near the peeling roller in parallel with the peeling roller. Image transfer device. 6. A second guide roller, which changes the transport direction of the transfer film, is arranged downstream of the first guide roller in the transport direction of the transfer film, and is arranged in a direction symmetrical with the first guide roller. The image transfer device according to claim 5. 7. A transfer film is conveyed in its longitudinal direction so that a transfer film portion on which an image is formed is positioned on a transfer object, and the transfer film portion on which the image is formed is heated to the transfer object by a transfer roller. An image transfer method in which the image is transferred to a transfer target by pressing, and the transfer film is peeled off from the transfer target by a peeling roller on the downstream side of the transfer roller in the transport direction of the transfer film, at the time of transferring the image. The position of the transfer roller and the peeling roller is fixed, and the transfer target is moved from the upstream side to the downstream side in the transport direction at the same speed as the transfer film. . 8. The image transfer method according to claim 7, wherein the transfer direction of the transfer film is changed to above the transfer target by the peeling roller.