KR20210004329A - Printing pad with built-in heat wire for pad printer - Google Patents

Abstract

The purpose of the present invention is to provide a printing pad with a built-in heat wire used for a pad type printer, which has a heat wire in the same to increase surface temperature of the printing pad to increase viscosity of ink transferred on the printing pad to enable retransfer to be easily performed on an object to be printed to remove a defect and print at high precision and high quality. According to the present invention, the printing pad (10) comprises: an upper plate (11) having a plate shape; and a pad (12) attached to a lower portion of the upper plate (11) and having a heating means therein.

Description

Printing pad with built-in heat wire for pad printer}

The present invention relates to a printing pad of a pad type printing machine, and more particularly, by increasing the surface temperature of the pad by embedding a heating wire in the printing pad, the ink transferred to the pad is well retransferred to the printed object, resulting in defects. It relates to a printing pad with a built-in heating wire used in a pad type printing machine, which is capable of printing high-quality printing without a problem.

A pad printing machine applies ink to a metal plate on which various patterns, such as letters, pictures or logos, are etched, and then presses the ink applied to the etched area with a pad, and then transfers the ink transferred to the pad to the printed object (resin or metal). It is a printing machine that retransfers to and prints the product).It is mainly used to print letters or logos on the case made of resin of electronic products, but recently, it is copper (Cu ) Pad printing is used to form an antenna pattern by printing with ink.

The applicant (inventor) of the present invention has been in the business of pad printing machines for decades, and prints quickly in response to various sizes and print positions of the object to be printed, and prints by adjusting the print position at a remarkably fast speed even if the product model changes. A pad printing machine that can be used was developed and registered as a patent registration No. 1403867 "Pad type 5 degree printing machine". Most of the technologies related to pad printing machines that have appeared so far as well as the above patents improve printing speed and speed up printing position It was about technology that could respond easily.

On the other hand, Patent Registration No. 673398 "Printing pad for a printing device having multi-layer hardness and its manufacturing method" is that a printing pad mounted on a pad printing machine is formed with a layer having different hardness. The end point where ink is adhered and transferred Silver is a technology that enables excellent and high-quality printing by forming a soft material with low hardness, and forming the rest of a material with high hardness. However, since the viscosity of the printing ink varies depending on the temperature, there is a problem that printing may not be clear depending on the environment and temperature of the printing workplace. When using the printing pad, the ink transferred to the pad is completely reconverted to the printed object. There is a problem that printing may not be clear due to the fact that it is not possible and some sticks.

The present invention was conceived to solve the above problems, and an object of the present invention is to increase the viscosity of the ink transferred to the printing pad by increasing the surface temperature of the printing pad by embedding a heating wire in the printing pad. It is to provide a printing pad with a built-in heat wire used in a pad type printing machine that is capable of high quality printing without defects due to good retransfer to printed materials.

A printing pad incorporating a hot wire used in a pad type printing machine according to the present invention includes: an upper plate formed in a plate shape; It is attached and installed on the lower part of the upper plate, is provided with a round portion in a round shape on the lower surface, is formed with a pad formed of an elastic material, and a heating means is built-in at a predetermined interval from the lower surface of the pad. It features.

Preferably, the heating means is a flexible heating wire, and is configured to control the temperature of the heating wire.

The printing pad of the pad type printer according to the present invention increases the surface temperature of the pad by heating the heating wire embedded in the printing pad, and since the temperature is high on the printing pad side due to the heat rays, the ink transferred from the etched part of the metal plate to the printing pad. The solvent contained in the substrate is easily evaporated, and the solvent contained in the ink remains on the side of the substrate, so after the ink is retransferred to the substrate, the ink is well separated from the print pad, but the solvent remains on the substrate, resulting in clear printing. Therefore, high-quality printing without defects can be performed. In addition, since the printing pad is heated to an appropriate temperature, consistent and clear, high-quality printing is always possible regardless of the temperature and environment of the workplace, and ink does not stick to the printing pad even if the printing pad is used for a long time. The lifespan is also significantly longer.

1 is a side view showing a schematic structure of a pad printing machine.
2 is a perspective view showing a printing pad with a built-in heating wire.
3 is a side view showing a printing pad with built-in heating wires.

The greatest technical feature of the printing pad according to the present invention is that by heating the printing pad by embedding a heating wire, the viscosity of the ink transferred to the printing pad is increased, so that it is well retransferred to the printed material, thereby enhancing the printing clarity and high-quality printing. Is that it was possible.

A pad printing machine applies ink to a metal plate on which various patterns, such as letters, pictures or logos, are etched, and then presses the ink applied to the etched part with a printing pad, and transfers the ink to the printing pad back to the printed object (resin or metal). This is a printing machine that retransfers to the printed product) and prints it.The schematic configuration and operation of the pad printing machine is that the jig on which the printed object 20 such as a display panel is placed and mounted can be moved left and right at the work point where printing is performed. The print pad 10, which is installed so as to be arranged in a plurality of pad operation units, moves back and forth and moves up and down, and transfers the ink transferred from the metal plate to the printed object 20 again to perform printing (see FIG. 1). . Since the printing pad 10 according to the present invention is not applied only to a specific pad printing machine, but is mounted and used in all pad printing machines that perform pad printing, only the printing pad part, which is a feature of the present invention, will be described.

The printing pad 10 includes an upper plate 11 formed in a plate shape, and a pad 12 attached to a lower portion of the upper plate 11. The pad 12 is made of a material having elasticity and abrasion resistance such as silicone, and the three-dimensional shape and size of the pad 12 are varied, but the bottom surface is provided with a rounded portion, so that printing is possible on both flat and curved surfaces. Do.

The biggest feature of the present invention is that a heating means for heating the printing pad 10 is installed inside the printing pad 10, and the heating means is built in from the lower surface of the pad 12 at regular intervals. There may be various types of heating means, but it is most preferable to use a flexible heating wire 121, and the heating wire 121 is heated by receiving power through the power line 122, and the control unit of the pad printer It is preferable that a control means capable of controlling the temperature of the heating wire 121 is provided.

The heating wire 121 may be arranged in various shapes to form a predetermined interval with the lower surface along the surface shape of the round portion of the lower surface of the pad 12. In addition, since the heating wire 121 is flexible, even if the shape of the portion to be printed of the printed object 20 has various surfaces such as a flat, concave or convex surface, the printing pad is pressed and the shape of the lower surface of the pad 12 is It will be able to cope with changing according to the printing surface of

In this way, since the heating wire 121 embedded in the pad 12 is heated, the lower surface temperature of the pad 12 is increased, so that the lower surface of the pad 12 to which the ink is transferred is high, so the etched portion of the metal plate The solvent contained in the ink transferred from the pad 10 to the pad 10 is easily evaporated, and the solvent contained in the ink remains on the side of the substrate 20, so that after the ink is retransferred to the substrate 20, the pad ( In 12), the ink is well separated, but since the solvent remains on the object to be printed 20, clear printing is performed, so that high-quality printing without defects can be performed. In addition, since the printing pad 10 is heated to an appropriate temperature, consistent and clear high-quality printing is always possible regardless of the temperature and environment (humidity, etc.) of the work site. Even if the printing pad 10 is used for a long time, the printing pad Since the ink does not stick to (10), the service life of the print pad is significantly longer.

The above description is an illustrative description of the present invention, and the embodiments published in the specification are not intended to limit the technical idea of the present invention, but to describe the present invention. Various modifications and variations will be possible without departing from the technical idea of Therefore, the scope of protection of the present invention is interpreted by the matters described in the claims, and technical matters within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: printing pad 11: top plate
12: pad 121: heating wire
122: power line
20: printed matter

Claims (2)

In the printing pad mounted on the pad type printing machine,
The printing pad,
A top plate formed in the shape of a plate (板狀);
A pad attached to and installed on the lower portion of the upper plate, provided with a round portion on a lower surface thereof, and formed of an elastic material;
A printing pad having a built-in heating wire for use in a pad type printer, characterized in that the heating means is built-in at a predetermined interval from a lower surface of the pad to the inside of the pad.
The method of claim 1,
The heating means is a flexible heating wire, and a printing pad having a built-in heating wire used in a pad type printer, characterized in that it is configured to control the temperature of the heating wire.

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