Printing – Special article machines
Patent
1992-01-28
1994-02-15
Burr, Edgar S.
Printing
Special article machines
101 4, B41F 1700
Patent
active
052857239
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a printing apparatus for printing on a wire material such as wire cord. The apparatus is particularly suitable for printing identification display such as schema numbers or symbols on the surfaces of a plurality of different kinds of wire cords.
BACKGROUND ART
A tremendous number, such as several tens of thousands, of wire cords are utilized, for example, in the electrical systems of various equipment of an aircraft, and the wire cords have various, such as ten or more kinds, of outer diameters.
In order to prevent erroneous connection or trouble when such numerous wire cords are installed, identification displays such as schema numbers or symbols for the wires or wire cords on the basis of a manual are applied, and the wiring work is performed in accordance with the identification displays.
However, the wire cords have various diameters and, for example, include those each having a diameter of about 1 mm and also include twisted wires. Accordingly, special printing techniques are required for printing on such fine wire cords.
Heretofore, as shown in FIG. 7 as a schematic view, a type a is set and heated, and, by means of this type a, printing is carried out under pressure on a coating material d of a cord c through an ink ribbon b. In another method, the ink jet method, electric charges are applied to particles of an ink in accordance with the shapes of types preliminarily programmed, and these shapes of types are adsorbed on a printing surface
However, in both of the above conventional methods, the printing is carried out for one cord per one operation. Accordingly, when it is necessary to carry out the printing on cords of various kinds or diameters in accordance with their usages and equipment to be used, extremely troublesome or difficult work is involved in changing printing contents, adjusting many items of equipment such as cord reels, cord guides and printing units and so on. Such troublesome work may not be a significant problem in the case of a relatively smaller number of kinds of wire cords, but in the case of extremely many kinds of wire cords such as in the equipment of an aircraft, it is considerably difficult to print different kinds of identification displays on these numerous members of wire cords.
SUMMARY OF THE INVENTION
In view of above described problems, the present invention aims to provide a wire material printing apparatus capable of carrying out the printing on many kinds of wire materials including small sized wire materials in a short time with high efficiency.
The present invention is characterized, as a means for solving the problems of the conventional art described above, by a printing apparatus for wire materials in which identification displays such as schema numerals and symbols for wire material such as electric wire cords are printed on the outer peripheries of the wire material. The printing apparatus comprises a selection and drive means for feeding plural kinds of wire materials, respectively, and selecting wire material corresponding to the one to be printed and a movable printing means to be moved to a position corresponding to the position of the wire material selected by and fed from the selection and drive means and adapted to print on the wire material. The selection and drive means of the present invention comprises driving rollers disposed correspondingly to plural kinds of stored wire materials, respectively, and a plurality of pinch rollers disposed opposingly to the driving rollers so that the wire materials contact the peripheral surfaces thereof so as to be pressed between the driving rollers and the pinch rollers, and the movable printing means is composed of an ink-jet-type printing head movably supported by a positioning table arranged in a direction transverse to the wire material feeding direction. The present invention also features a structure in which a length of the wire material to be fed is measured by a motor for driving the selection and drive means and an outer peripheral length of t
REFERENCES:
patent: 4029006 (1977-06-01), Mercer
patent: 4370542 (1983-01-01), Mills et al.
patent: 4827841 (1989-05-01), White, Sr.
patent: 5066153 (1991-11-01), Stephens
patent: 5067399 (1991-11-01), Berry
Ichikawa Tadashi
Takahashi Mitsuo
Burr Edgar S.
Japan Airlines Co., Ltd.
Yan Ren
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