JPH0430050Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a thermal transfer recording device for recording images, characters, etc., and is particularly suitable for recording high-resolution images, characters, etc. in a short time. Regarding.

[Prior Art] In a terminal output device such as a computer, a method is known in which a thermal head is driven in accordance with a data signal and a color material layer is transferred by selectively applying heat using a transfer sheet.

This method has the advantage of being able to immediately output variable information by operating a computer. However, there are limits to the types and sizes of characters that can be output, the resolution of images is determined by the thermal head, and image formation is time-consuming because it is performed in units of head scanning.

[Objective] An object of the present invention is to provide a thermal transfer recording device that can obtain images with good reproducibility in a short time.

[Structure] In order to achieve the above-mentioned object, the thermal transfer recording device of the present invention brings a recording paper and a transfer sheet, which is a film-like base material and coated with a coloring material layer, into close contact with each other, and applies heat to form the coloring material layer. In a thermal transfer recording device that records by transferring information to the recording paper side, the recording paper, the transfer sheet, and the original plate on which information is recorded in bright and dark areas are wrapped around a transparent cylinder and brought into close contact with each other, so that the transfer sheet and the recording paper are A pressure roller provided at a position where the recording paper is fed, a dancer roller provided on the side facing the light source that applies tension to the recording paper, and a dancer roller located between the pressure roller and the dancer roller that transfers the recording paper together with the transfer sheet to the transparent cylinder. adhesion/separation means consisting of a peeling roller that moves along a transparent cylinder so as to wrap the recording paper in close contact with the transfer sheet, moves in the opposite direction after transfer, and guides the recording paper to be peeled from the transfer sheet by the pulling force of the recording paper. The apparatus includes: a means for irradiating the original plate and the transfer sheet with light from a light source contained within the transparent cylinder; and a mechanism for conveying the recording paper and the transfer sheet.

[Example] The present invention will be explained based on an example. FIG. 1 is a schematic perspective view of the present invention, and FIG. 2 is a front view thereof.

3A to 3E show an overview of the operational flow of the device of the present invention.

The transparent cylinder 1 is rotatably held in the casing and is provided with a mechanism capable of being fixed at a fixed position, and is further provided with a mechanism capable of holding the original plate 4 wrapped around the outer peripheral surface of the cylinder.

The transfer sheet 6 is wrapped around the transparent cylinder 1 under appropriate tension so as to cover the original plate 4 wrapped around the transparent cylinder 1.
The transfer sheet 6 is ready to be supplied from the supply roll 5 at any time, and the used sheet is wound around the winding roller 7 by the motor 8.
Furthermore, the recording paper 11 is placed so as to cover the rolled up transfer sheet 6.
is wound around the recording paper 11 by a pressure roller 13 and a peeling roller 15, and an appropriate tension is applied to the recording paper 11 by a dancer roller 14.

Next, the transfer process will be explained. First, as shown in FIG. 3A, a transfer sheet 6 is taken up by a take-up roller 7 rotated by a motor 8, and a new transfer sheet 6 is placed on the original plate 4 on the outer peripheral surface of a transparent cylinder 1. wrap around to cover.

Next, as shown in FIG. 3B, the recording paper 11 is pressed against the outer circumferential surface of the cylinder by the pressure roller 13.
Further, while being applied with appropriate tension by the dancer roller 14, the peeling roller 15 wraps the sheet around the outer peripheral surface of the cylinder so as to cover the transfer sheet 6 that has already been wound. Here, the change in the path of the recording paper 11 is absorbed by the vertical movement of the dancer roller 14, and the above winding operation is performed.

Next, as shown in FIG. 3C, power is supplied to the light source 3 enclosed in the transparent cylinder 1, and light is emitted. The light hits the inner surface of the cylinder either directly or after being reflected by the reflector 2. The light transmitted through the transparent cylinder hits the original plate 4 set on the outer peripheral surface of the cylinder, further transmits through the bright part on the original plate, and then selectively hits the transfer sheet 6. The coloring material layer in this portion receives the light, absorbs heat, and is transferred to the recording paper 11.

Next, as shown in FIG. 3D, the recording paper 11 and the transfer sheet 6 are separated. The peeling operation is the reverse of the operation flow shown in FIG. 3B, and the peeling roller 15 faces toward the pressure roller 13 along the outer peripheral surface of the cylinder, and the dancer roller 14 also descends at the same rate as this movement, completing the peeling operation. .

Next, as shown in FIG. 3E, the pressure roller 13
is separated from the transparent cylinder 1, and the recording paper 11 is moved by a conveyance system such as a feed roller 12 driven by a motor 19.

After this, the operation flow returns to FIG. 3A and repeats the transfer operation.

When performing multicolor transfer with this apparatus, the transfer mechanism described above is
For example, this can be done by arranging multiple units as shown in FIG. The problem here is how to position the recording paper 11 in the flow direction. In particular, a structure that can accommodate changes in transfer size is required, but in order to solve this problem, this device has a compensator roller between each transfer unit as shown in Figures 1 and 2. 17 will be provided. By moving the compensator roller 17 up and down, it is possible to change the path of the recording paper 11 between the transfer units and adjust the register.

[Effects] By using the device of the present invention, color transfer recording, which was conventionally done by repeatedly passing over a thermal head using a thermal printer, can be done as easily as printing on paper using a rotary printing press. Color transfer records can be created in a short time.

That is, a pressing roller 13 for the transparent cylinder 1, a dancer roller 14 for tension adjustment, a peeling roller 15 for adhering and peeling the recording paper, a compensator roller 17 for positioning the image of the original between each transfer mechanism, and feeding. Since the roller 12 is provided, the transfer paper can be reliably adhered to and peeled off from the transfer sheet, and the image can be properly registered. Furthermore, the recording paper on which the transfer has been completed may be wound up into a roll,
It is also possible to connect a sheet cutting device etc. after the transfer device and output the sheet in sheet form, or to use paper with horizontal perforations in advance as the recording paper, or to fold it out by cutting horizontal perforations after the transfer is complete. It can also be done.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of the device of the present invention, FIG. 2 is a front view of the device, and FIGS. 3A to 3E are schematic diagrams showing the operation flow of the device of the present invention. 1...Transparent cylinder, 2...Reflector, 3...Light source,
4...Original plate, 5...Transfer sheet supply roll, 6...
...Transfer sheet, 7...Transfer sheet take-up roller, 8
...Motor, 9...Nip roller, 10...Nip roller, 11...Recording paper, 12...Feed roller, 13...Press roller, 14...Dancer roller, 15...Peeling roller, 16...Guide roller, 16'...Guide roller, 17...Compensator roller, 18...Paper feed roll, 19...Motor.

Claims (1)

[Claims for Utility Model Registration] (1) By bringing recording paper and a transfer sheet, which is a film-like base material coated with a coloring material layer, into close contact with each other, and applying heat to transfer the coloring material layer to the recording paper side. In a thermal transfer recording device for recording, a pressure is provided at a position where the transfer sheet and recording paper are fed in order to wrap the recording paper, the transfer sheet, and the original plate on which information is recorded in bright and dark areas around a transparent cylinder so that they come into close contact with each other. roller, a dancer roller that applies tension to the recording paper provided on the side facing the light source, and a dancer roller that is located between the pressure roller and the dancer roller and wraps the recording paper together with the transfer sheet around the transparent cylinder so as to bring it into close contact with the transparent cylinder. a peeling roller that moves along the transfer sheet and moves in the opposite direction after transfer to guide the recording paper to be peeled from the transfer sheet by the pulling force of the recording paper; A thermal transfer recording apparatus comprising: means for irradiating light from a light source onto the original plate and the transfer sheet; and a mechanism for transporting the recording paper and the transfer sheet. (2) a transparent cylinder equipped with a mechanism for holding the original;
For a plurality of transfer mechanisms arranged in a row in the recording paper conveyance direction, each consisting of a transfer sheet conveyance mechanism and a mechanism for peeling the transfer sheet and the recording paper, one continuous recording paper conveyance mechanism, and Claims for registration of a utility model characterized in that a positioning mechanism consisting of a compensator roller and a feed roller is arranged in parallel between each transfer mechanism to align the transfer position of the original plate held in each transparent cylinder onto recording paper. The thermal transfer recording device according to item 1.