JPS60105115A - Method of printing cable surface mark - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION BACKGROUND AND OBJECTS OF THE INVENTION The present invention relates to a method of printing marking characters on the surface of a cable.

Conventionally, when printing sign letters on the surface of a cable such as a turtle cable, the letters are stippled on the surface of a roll of a certain diameter, and printing ink is placed on it to transfer it to the cable surface.
A so-called marking roll method is used.

Alternatively, if you want to print the date of manufacture on something other than the surface of a cable, such as on the surface of an egg, there is a method that sprays magnetic ink from a single inkjet nozzle and forms characters by deflecting the trajectory of the ink using a magnetic field. It is taken.

In the former case, the rolls used must be replaced every time a different sign is to be printed, the cost of the rolls is high, and maintenance is difficult.

In the latter case, the ink must be made of a magnetic material, and carbon cannot be mixed into the white letters that are often printed on the surface of cables, so a very special ink phase was required. In addition, since there was only one inkjet nozzle, quick nozzle operation was required to print letters on the surface of the cable moving at high speed.

The purpose of the present invention is to solve the above-mentioned drawbacks of the prior art, to develop a special ink without manufacturing or replacing printing rolls, and to develop 'XJ' with quick magnetic field operation.
Li°L, you can print the sign letters on the cable table + Mi without being forced to do so.

[Summary of the invention]

That is, the gist of the present invention Vl5 is to print marker characters on the surface of a cable by controlling a large number of ink jets arranged in a grid pattern with a computer and jetting ink at grid points l1l- corresponding to human characters.

The cable surface marking printing method of the present invention is characterized by the fact that the inkjet arranged at each grid point does not eject ink in a straight line toward the front, and does not require troublesome field operation. It does not require special features and is easy to form, and one character can be formed with one ejection, so it can be said to be fast. It is a character formation consisting of a large number of lattice points 21, and the selection of these lattice points is done automatically by a computer. Even if the sign letters are different, just by manually writing them in advance, the exchange can be completed continuously.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in Figure 1, there is a print head 2 consisting of three groups of ink jets arranged in a grid near the surface of a running cable 1, and the print head 2 is electrically connected to a computer 4 such as a microcomputer. In other words, information such as the sign characters printed on the surface of the cable 1 or the running speed of the cable 1 is manually input into the computer 4, and each inkjet 3 is controlled based on this information. For example, when printing the sign letters "HITACHI" such as 71< in FIG. By jetting ink particles, characters ``■'' are printed on the surface of the cable 1. In addition, the cable 1 runs in the direction of the arrow (from left to right in the figure), and the timing to print the next character II I' II is determined by the character spacing to be printed and the cable running speed V. With a time lag of time T(-V), the inkjet 3 at the grid point corresponding to the next character 11 (1) I+ is operated.

(f7) Under the control of the computer 4, the inkjet 3 at each grid point may or may not eject ink particles, thereby printing arbitrary marking characters on the cable surface.

Note that although the above embodiment uses a print head in which a large number of ink jets are arranged in a grid, the form of the print head is not limited to this. Printheads that can be used can also be considered. Although such a print head can be made smaller than the head itself arranged in a grid pattern, the printing speed is slightly lower1. By using a controlled printing head, there is no need to produce a printing roll for each different sign character as in the conventional marking roll method, and one head can print all types of sign characters according to computer instructions. Not only is it highly economical, but by manually inputting a large number of sign letters into a computer in advance, the character content can be changed at +C+, eliminating the need to replace printing rolls as in the past, and reducing cable manufacturing costs. is also reduced.

However, compared to the inkjet method in which characters are formed by bending magnetic ink using a magnetic field, the method in which ink particles are ejected linearly from each inkjet does not require the use of a special type of magnetic ink, making it possible to create characters in a variety of colors. It is possible to print In addition, a large number of inkjets are arranged in a grid pattern.
/1', The L-shaped print head can instantly print a single character by ejecting ink particles only once from the famous ink jet, so it has a high speed that can fully follow the distance of the cable and 111 degrees of travel. are doing.

[Brief explanation of drawings]

Figure 1 is a diagram showing an example of the printing method used in this book, and Figure 2 is a diagram showing an example of sign letters. 1゛, 3... inkjet, 4... computer.

Claims (2)

[Claims] (1) A method for printing various signs on the surface of a cable, characterized in that a large number of computer-controlled ink jets are arranged to eject ink particles onto the surface of the cable in response to human power from a computer. (2) The cable surface marking printing method according to claim (1), characterized in that a magnetic pad 1 having the plurality of ink jets arranged in a grid pattern is used.