JPH0311625B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a transfer printing device that can freely perform transfer printing with a metal film by using a transfer foil on a part of a printed matter without using a press die.

BACKGROUND ART Conventionally, a manually operated mark press has been used to transfer and print a company emblem or the like with metal foil onto the surface of a business card or the like. This device is a small hand press that places a business card in a predetermined position (generally so that a mark can be placed around the left shoulder of the business card), places transfer foil cut to the required size in advance on the printing target position, and heats it. A printing mark mold equipped with a plate is pressed onto the transfer foil by operating a lever to transfer it. Therefore, it is first necessary to prepare the transfer foil to be used, cut to the required size. The cut transfer foil must be placed one by one at the press position. It is inefficient because everything is done manually. In order to transfer a large area, handling of the transfer foil is difficult and the press mold naturally becomes large, so careful measures must be taken to ensure an even transfer operation. There are many problems such as.
Therefore, not only uniform mark printing but also irregular transfer printing must be performed by manually determining the position of the transfer foil, making it difficult to perform transfer printing freely.

Purpose of the invention: The present invention solves these problems and provides a simple device that does not require a press die, uses continuous transfer foil, and can perform continuous transfer printing at desired positions. Our goal is to provide the following.

Structure of the Invention: The present invention includes a press supporting roller disposed in the middle of a paper feeding device which is also equipped with a mechanism for detecting the feeding conditions of the paper to be printed, and a heated press roller with a built-in heater facing the supporting roller. is rotatably supported by a lever link, and the press roller has an electric actuator connected to the end of the lever link so that a pressing force is applied only when the desired transfer printing portion of the paper to be printed moves on the support roller. is connected to an electric control unit, and the transfer foil is wound from the feeding-side reel through between the press roller and the supporting roller and wound onto the take-up roller, so that the transfer foil is rotated when pressurized by the press roller. At the same time, the transferred foil to be wound is brought into contact with the surface of the transfer foil on the feeding side reel and wound in synchronization, so that the foil part of the transfer foil is thermally transferred to the resin ink on the printing surface. It was designed so that it could be transferred and printed without the need for a press die.

In the present invention, the printing material is printed with thermoplastic resin ink at the planned transfer printing position, the transfer foil is coated with only a protective film on the transfer surface side of the foil, and the transfer is performed using a press roller. The transfer film was transferred by pressure, and the transfer film (transfer foil) was sequentially supplied and wound up by pressure transfer between a press roller and a support roller.

Embodiment: Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 and 2 show an apparatus for transfer printing on small-sized printed matter. Frames 2, 2 are set up in parallel, and a press support roller 3 made of rubber is installed at the lower center between the two frames. Power is transmitted to the gear on the shaft 3' and driven.
A press roller 7 whose shaft portions on both sides are rotatably supported by a pair of lever links 5 is disposed above the supporting roller 3. This press roller 7 is made of metal with a built-in heater, and has a The surface is coated with a film of tetrafluoroethylene resin (for example, Teflon (trade name)) as a release layer to improve releasability. The lever links 5, 5 are integrally connected at the upper part by a cross member 5', and are supported by the frames 2, 2 by a fulcrum pin 6 at an intermediate position. A tension spring 8 for pressing is attached to the front end of the lever link 5, and one of the rear ends is connected to a movable iron core 9' of a solenoid 9 installed on the machine base 1. This allows the press roller 7 to be lifted up.

Transfer foil F is applied to the transfer mechanism created in this way.
As a supply means, a reel 12 of transfer foil is supported by a pair of support pieces 11 fixed to the upper part of the frames 2, 2, and the reel 12 of transfer foil is
The transfer foil F fed out from the (feeding side reel) section is
A transferred take-up roller 14 is disposed opposite the transfer foil wrapping reel 12 via guide bars 13, 13' arranged in front and rear positions of the press roller 7. A pair of support pieces 15 that support the take-up roller 14 are attached at their base ends so as to be swingable about a shaft 15', and this support piece 15 has one end attached to the frame 2 side, and the other end of a tension spring 16 attached to the frame 2 side. The transferred foil, which is always wound around the winding roller 14, is connected so that it comes into contact with the surface of the foil on the feeding side and is wound synchronously. The transfer foil F wrapped between the guide bars 13 and 13' can wait without contacting the press roller 7 when the press roller 7 is raised, and is not affected by the heat of the press roller 7. be. Also press roller 7
A pair of upper and lower printing material feed rollers 18 are provided at the front and rear positions of the transfer printing section formed by the support roller 3 and the support roller 3, respectively.
18' and rollers 19, 19' are arranged so as to rotate almost in sync with each other, and if the printing material A is sent from the supply side table 20 to the transfer printing position, the printing material A is sequentially driven by pinch pressure to perform transfer printing, and the rear part It is designed to be sent out. And the front roller 18 shaft 18''
An encoder is attached to the end via a joint,
A known electric control mechanism is used to detect the feeding of the printing material and instruct transfer based on the instruction signal from the encoder.

Since the device of the present invention is configured as described above,
The transfer foil F to be used is wound on a reel 12 so that the base film side is in contact with the circumferential surface of the press roller 7, and is wound around the tension bar 12', around the guide bars 13, 13', and in contact with the outside of the shaft 15'. When the heater 7' built into the press roller 7 is heated, the solenoid 9 is energized and the rear part of the lever link 5 is pulled down to lift the press roller 7. I'll keep it.

When transferring to a desired position on a printing material (for example, a business card), if the material is printed with thermoplastic resin ink by a well-known printing means and supplied from the table 20, the feed rollers 18, 18' transfer it to the press roller 7. The printing material A is sent between the support roller 3 and the support roller 3. At this time, when the transfer position of the printing material is determined, the distance from the edge of the printing material to the transfer position is set in advance by a computer or the like using an encoder attached to the feed roller 18 axis, and the electric control mechanism is controlled. According to the command, when the scheduled transfer position of the printing material approaches the press roller 7,
The excitation of the solenoid 9 is cut off, the lever link 5 is pulled down to the front by the force of the tension spring 8, and the press roller 7 is pressed against the support roller 3.
The power of the supporting roller 3 is transmitted, and the transfer foil F is moved while being pressed against the printing material, and by being heated and pressurized, the resin ink on the printing surface is melted and welded to the contact surface of the transfer foil, and the transfer foil F is transferred. When the transfer is moved the required distance, the solenoid 9 is energized according to the settings to attract the iron core, the lever link 5 is operated in reverse, the press roller 7 is lifted, and the transfer foil F is moved.
is separated from the press roller 7 and at the same time from the printing material, and the transferred printed material is sent out.

The transferred transfer foil base film is then taken up by a take-up roller 14 that contacts the transfer foil reel 12 and rotates in synchronization with the transfer foil reel 12.

Note that the transfer foil take-up roller is in contact with the foil circumferential surface on the feeding side reel, so the film is taken up in synchronization, and is actively driven by the narrow pressure rotation of the press roller and support roller. It is fed out and wound without slack.

In this way, if the printing surface is printed with printing ink mainly composed of thermoplastic resin or something similar, transfer foil can be pressed and heated in line with this area, and the transfer will be transferred to the printed area. Since the foil can be transferred, if the width of the transfer foil is widened, it is possible to transfer over a wide area. Therefore, for example, it can be transferred to a printed part of an electrostatically printed object, and it is also possible to print large designs in metallic form using transfer foil.

Effects of the invention: As described above, the device of the present invention does not require a press mold for transfer, and can perform continuous and flexible transfer printing from one point to printing over a wide area, and the transfer foil requires separate power. Since the feeding side and the winding side are synchronized without using a roller and can be moved only during transfer, waste is eliminated, transfer printing can be performed economically and effectively, and its industrial effects are great. It can be said that it is a thing.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram of the apparatus of the present invention, FIG. 2 is a partially cutaway side view, and FIG. 3 is a diagram showing the transfer operation mode. 1... Machine base, 2... Frame, 3... Press support roller, 5... Leverage link, 6... Fulcrum pin,
7...Press roller, 8...Tension spring for pressing the press roller, 9...Solenoid, 11, 15...
Support piece, 12... Reel with transfer foil winding, 13, 1
3'...Guide bar, 16...Tension spring, 18,
18'...Feeding roller, 19,19'...Feeding roller, F...Transfer foil, A...Printing material.

Claims (1)

[Claims] 1. A press support roller is disposed in the middle of a paper feeding device that is also equipped with a mechanism for detecting the feeding conditions of the paper to be printed, and a heated press roller with a built-in heater is connected to a lever link in opposition to the press support roller. The press roller is rotatably supported on the support roller, and the press roller is equipped with an electric actuator connected to the end of the lever link by an electric control section so that the pressurizing force is applied only when the desired transfer printing portion of the paper to be printed moves on the support roller. The transfer foil is connected to the reel on the feeding side, passes between the press roller and the supporting roller, and is wound onto the take-up roller, so that the transfer foil moves in response to rotation when pressurized by the press roller. At the same time, the transferred foil to be wound is brought into contact with the transfer foil surface of the feeding side reel and wound in synchronization, so that the foil part of the transfer foil is thermally bonded to the resin ink on the printing surface. A transfer printing device characterized by: