JPH01154757A - Method for applying color code specification printing to wires - Google Patents

Abstract

PURPOSE:To simplify a production facility and process, by a method wherein, a color code line is printed, a window is formed therein, and a various types of wire specification is printed within the window simultaneously with a color code line printing. CONSTITUTION:A conductor 1 is inserted through a nipple holder 3 and a nipple 4 of an extrusion molding machine 2, an insulating coating 5 is extrusion molded on the conductor 1, and thereon a color code specification printing is applied by a printer 6. The peripheral surface of a printing ring 7 is made a mirror surface 18 at the center by a fixed peripheral length, and a mesh etching 16 is applied to various types of wire specification 15' outside and inside the mirror surface 18. The lower part of the printing ring 7 is dipped in an ink 12 contained in an ink vessel 10, whereby the ink is applied to the peripheral surface. Then, the ink other than that in the recess of the mesh etching 16 is scraped by a doctor 19, and the ink remaining in the recess is transfer-printed on the surface of the insulating coating 5. Namely, a line 14 over the full length and a wire specification 15 longitudinally provided at fixed intervals within a window 17, such as a wire manufacturer, a manufacturing date, and a type approval mark, are simultaneously printed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a printing method for integrally printing an insulated wire with an indication of the wire color and the wire manufacturer.

[Conventional technology and its problems]

For insulated wires, in order to clarify the manufacturer's manufacturing responsibility,
It is mandatory to display the manufacturer's name or its abbreviation, year of manufacture, type approval mark, etc.

Furthermore, the wiring is colored to identify positive and negative or N, S, and R phase core wires.

This color classification is usually done by extruding an insulating material such as a vinyl chloride mixture with colored pigments added onto the conductor to make each wire sheath a different color, or applying various colored tapes vertically or This was done by winding it.

However, in the case of the former extrusion coating, when it comes to chromaticity,
It is necessary to remove all the admixtures in the extrusion molding machine, which causes a decrease in work efficiency. In addition, the latter method of color separation by taping (N attachment/winding) requires a process and equipment for that purpose.

On the other hand, in the case of a vinyl chloride insulating tape, the year of manufacture etc. can be displayed by printing on the surface of the insulated wire with a printing ring when it comes out of the extrusion molding machine, by vertically attaching the tape with the display printed on it, or It is displayed by winding it.

[Purpose of the invention]

In view of the above, it is an object of the present invention to simultaneously display electric wires and distinguish colors by also performing color classification by printing.

[Means for achieving the purpose of the invention]

In order to achieve the above object, in the present invention, colored lines are printed on the surface of the electric wire over its entire length, and colored lines are printed on the colored lines at regular intervals in the longitudinal direction. A missing window with the required width and length is formed, and wire indications such as the wire manufacturer, year of manufacture, type approval mark, etc. are printed in this window at the same time as the color-coded lines are printed.

The colored lines do not need to be continuous over the entire length.

[Effect]

The printing method according to the present invention configured as described above includes, for example,
This is done by printing a plate with color-coded lines and electric wires, and using a ring.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

1 is a conductor, and as shown in FIG. 2, the conductor 1 is passed through a nipple holder 3 and a nipple 4 of an extrusion molding machine 2, and an insulating coating 5 is extruded onto the conductor 1. Before this extruded insulating coating 5 enters a cooling water tank (not shown), it is printed in different colors and displayed using a printing device 6 shown in FIGS. 3 and 4.

That is, in FIGS. 3 and 4, 7 is a printing ring, and the outer peripheral surface is "-0 to r" with respect to the outer peripheral radius r of the insulation coating 5.
It has a +0.2 mm circular arc peripheral surface 8.

The printing ring 7 has a shaft 9 rotatably supported on a bearing 11 provided at the upper part of the ink fountain 10, the lower part of the printing ring 7 is immersed in the ink 12 in the ink fountain 10, and the upper surface is extruded. The insulated wire a contacts the bottom surface 13 of the insulating coating 5 before entering the cooling water tank and rotates as the insulated wire a runs. In addition, in the figure, 21 is a guide roll.

The outer circumferential surface of the printing ring 7 has a mirror surface 18 having a certain length in the central circumferential direction, and wire markings 15' for the manufacturer, manufacturing date, etc. formed outside the mirror surface 18 and within the mirror surface 18 are arranged at a pitch of 0.25 mm. The wire mesh etching 16 is applied. The periphery of the ear portion 20 of the printing ring 7 is slightly pierced. This is because the ink adhered by the centrifugal force generated by the rotation of the printing ring 7 gathers on the periphery, and if there is no prick k, the ink will transfer to the surface of the electric wire 8 and the printing will not be good, but if the prick k is provided, the ink will This is because the wires gather at a point away from the surface of the wire 8 (gRsk), so the above-mentioned condition does not occur and the edges of the color-coded display print (line 14) are finished neatly.

The lower part of the printing ring 7 has the ink 12 in the inkwell 10.
The ink is deposited on the outer circumferential surface, and a doctor 19 having a circular arc matching the circular arc of the circumferential surface is in contact with the middle of the outer circumferential surface, and this doctor 19 leaves the ink in the recess of the mesh etching 16. The ink from other parts is scraped off, and the ink remaining in the depression is removed from the insulating coating 5 immediately after extrusion molding.
Transfer printed on the surface. That is, as shown in FIG. 1, a line 14 is printed on the surface of the electric wire a over the entire length by a portion other than the mirror surface 18, and due to the presence of the mirror surface 18, this colored line 14 is printed in the longitudinal direction. A window 17 of a required width and length is formed at regular intervals without color-coded line printing, and the display 15 such as the electric wire manufacturer, year of manufacture, type approval mark, etc. is printed within the window 17.

The doctor 19 is made of, for example, a high-density polyethylene round bar cut diagonally into rings, and has an outer diameter that is the same as or slightly larger than the outer diameter of the insulation coating 5. The inclination angle of this round cutting must be the same as or slightly larger than the inclination angle α at which the doctor 19 contacts the printing ring 7. In the figure, 22 is a weight for the doctor 19, and by changing its position, the contact pressure between the printing ring and the doctor 19 is controlled.

〔Effect of the invention〕

The present invention is constructed as described above, and color classification is performed simultaneously with wire display printing, so that production equipment and processes can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of an embodiment of the electric wire according to the present invention, Fig. 2 is a sectional view of an extrusion molding machine in the manufacturing process of the same embodiment, and Fig. 3 is a partially missing printing part in the same manufacturing process. Front view,
4 (al and mountains) are a partial left side view and a partially enlarged front view of the printing ring in FIG. 3, and FIG. 5 is a partially enlarged view of FIG. 4 ial. 1... Conductor, 2... Extrusion molding machine, 5... Insulating coating, 6...
Printing device, 7... Printing ring, 12...
...Ink, 14...Colored lines, 15...
...Wire display, 17...Window,
a...Electric wire. Patent applicant Tuck Electric Cable Co., Ltd. Agent Kama 1) Text 2 Figure 5 Figure 2 (a) (b)

Claims (1)

[Claims] Color-coded lines are printed on the surface of the wire over its entire length, and windows of the required width and length are formed on the color-coded lines at regular intervals in the longitudinal direction of the wires, with no color-coded lines printed. A method for printing wires according to color and display, characterized in that, simultaneously with the color-separated line printing, wire indications such as the wire manufacturer, manufacturing year, type approval mark, etc. are printed in the window.