JPH0311628B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wire printing machine, and particularly to a wire printing machine that is capable of continuously printing a predetermined length at predetermined intervals on the surface of a wire.

[Prior art and its problems]

Conventional wire printing machines print only one type of character on the surface of the wire, and then mechanically press and print the characters by baking them onto the surface of the wire.

Incidentally, electric wires used in a certain system or device are sometimes printed with various marks or characters to prevent wiring errors. By using electric wires with predetermined characters printed in predetermined locations, not only can incorrect wiring be prevented, but maintenance and inspection become extremely easy.

However, in conventional wire printing machines,
Only one type of character can be printed on the surface of the wire, but
When printing on a wire covered with an insulating material by mechanically pressing and printing as described above, there is a problem in that the insulation state of the wire becomes weak.

Moreover, since the wire rod is thin and has a substantially circular cross section, there is a problem in that when trying to print on it, it is difficult to transfer it onto a small diameter circumferential surface even if you try to transfer it with a normal hard roller (rotary press).

SUMMARY OF THE INVENTION An object of the present invention is to enable continuous printing of characters on a wire rod having a circular cross section and a small diameter, which is difficult to print on.

[Means for solving problems]

In order to achieve the above object, the present invention provides a feeding device that feeds out a wire, a printing device that prints on the surface of the fed wire, a winding device that winds up the printed wire, and a device that feeds out the wire. In a wire printing machine, the printing device is moved up and down by a cylinder, and is moved between a printing position and a character transfer position by a drive motor. It is composed of a rotational support arm that is horizontally rotated between the rotational support arms, a printing section that hangs downward from the tip of the rotational support arm, and a concave dial plate that is provided at the character transfer position, The lower end of the printing section is provided with a convex silicone rubber that transfers characters from the concave dial plate and prints them onto the wire.

[Effect]

With the above configuration, the present invention is controlled by the control means so that the feeding device continuously feeds out the wire intermittently and by a predetermined length at predetermined intervals, and the wire feeding action of the feeding device allows the printing device to The same characters are continuously printed on the surface of the wire at predetermined intervals and for a predetermined length, and the printed wire is wound up by a winding device.

In the present invention, in order to be able to print characters, etc. on a wire rod with a circular cross section and a small diameter, which is difficult to print, the characters, etc. are once transferred from the concave dial plate to the convex silicone rubber by vertical movement of the printing part. This soft convex curved surface is pressed onto the wire from above and is transferred along the circumferential surface of the wire while deforming it concavely.

In addition, by using soft silicone rubber,
In some cases, this can be done without damaging the wire.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 1, the wire printing machine according to the present invention includes a drum 1 on which a wire W is wound, a delivery device 2 that sends out the wire in front of the drum 1, and a wire rod W that is sent out by the delivery device 2. a printing device 3 that prints on the surface of the wire rod W printed on the surface of the wire rod W; an adjusting device 5 that intermittently adjusts the winding speed of the wire rod W printed on the surface by the printer 3 and sends it to the next winding device 4; It is composed of a winding device 4 that winds up the wire W that is intermittently adjusted and sent by the adjusting device 5.

The sending device 2 is equipped with an encoder (not shown), and the encoder is connected to a separately installed control means 6 using a computer. In addition, the sending device 2 is a driving device (not shown).
The wire W is sent out to the printing device 3 by a plurality of pairs of upper and lower delivery rollers 2a, 2b, .

The encoder reads the number of rotations of the delivery rollers and detects the predetermined feeding length of the wire W by the delivery rollers 2a, 2b, etc. The encoder reads the rotation speed of the delivery rollers and detects the predetermined feeding length of the wire W by the delivery rollers 2a, 2b, etc. When the number of revolutions of the delivery roller reaches the same length as the length commanded by the control means 6, the delivery device 2 The rotation of the delivery rollers 2a, 2b, . . . is stopped, and the delivery of the wire rod W is stopped. Inputs to the control means 6 are performed using keys, and here the character spacing and the length of a specific character to be printed are input.

The printing device 3 is moved up and down by a cylinder 3a, and is driven at a predetermined angle (approximately) by a drive motor (not shown).
90°) a rotational support arm 3b that is rotated in the horizontal direction;
hanging downward from the tip of the rotation support arm 3b,
Printing section 3d with silicone rubber 3c at the lower end
and a character placement part 3f, which is provided on the upper side of the rotational path of the rotating arm part 3b and allows ink to be placed on the concave dial plate 3e using a squeegee (not shown). In addition, in the figure, 3g is a holding plate that holds the wire rod W during printing, and as shown in FIG. The separation prevention plates 3i, 3i are attached, and the wire W is printed while being held between the separation prevention plates 3i, 3i and the holding groove 3h,
sent forward.

The adjusting device 5 rotatably attaches a movable roller 5b on which a weight 5a is suspended to the center of a movable arm member 5d that slides up and down on rods 5c, 5c vertically disposed on the left and right, and also attaches the movable roller 5b hanging below the weight 5a. A limit switch 5e on the drive side of the winding device is installed, and guide rollers 5g, 5g are installed at the left and right upper ends of the winding device 5 above the moving roller 5b.
The wire W is stretched from one guide roller 5g to below the moving roller 5b, further stretched from the moving roller 5b to the other guide roller 5g, and then wound by the winding device 4. It's summery.

A drive motor (not shown) for rotationally driving the winding device 4 is connected to a winding device drive side limit switch 5e and a winding device stop side limit switch 5f of the adjusting device 5, and the winding device 4 is connected to a winding device drive side limit switch 5e and a winding device stop side limit switch 5f. When turned ON or OFF, the drive is stopped and the winding device 4 is driven intermittently.
The winding device 4 includes a rotary plate 4a rotated by a drive motor, and a wire hanging bar 4b erected on the circumference of the upper surface of the rotary plate 4a.

With the above configuration, first, the sending device 2
As a result, the wire rod W is sent from the drum 1 to the printing device 3.
Since a and 2b are controlled, the wire rod W is sent out intermittently at predetermined intervals. When the wire W is fed once, the printing device 3 prints on the surface of the wire, but this printing device 3 is installed in advance in the cylinder in the state shown by the chain line in the figure, that is, in the state in which the rotational support arm 3b faces to the right. 3a, the silicone rubber 3c at the lower end of the printing part 3d comes into contact with the concave dial plate 3e, and character ink is deposited on the surface.Furthermore, it is lowered in this state, and the rotation support arm 3b is moved by the drive motor. The rotated state shown by the solid line in the figure, that is, the rotating support arm 3b
is lowered by the cylinder 3a in the forward facing state, and the character ink adhering to the silicone rubber 3c is printed on the surface of the wire W by the silicone rubber 3c at the lower end of the printing section 3d. After one printing is completed, the wire is again fed a predetermined width and printed in the same way as before, until the wire is fed a predetermined length to print one type of character input into the control device. , this intermittent feeding and printing are repeated.

The wire W whose surface has been printed in this manner is pulled downward by the weight 5a of the adjustment device 5 in accordance with the feeding speed and becomes slack. Due to the downward movement of the weight 5a, the weight 5a touches the lower winding device drive side limit switch 5e, and when the limit switch 5e is turned on, the winding device 4 is rotationally driven and the wire W is wound. On the other hand, since the wire rod W is not fed out for a certain period due to the intermittent feeding by the feeding device 2, the winding device 4
As a result of winding, the wire W becomes tensioned, and together with the weight 5a of the adjustment device 5, the moving roller 5b is guided by the rods 5c, 5c together with the moving arm 5d and raised, and the moving roller 5b is lifted up. The upper limit switch 5f on the winding device stop side is touched, and the rotational drive of the winding device 4 is stopped by the limit switch 5f. Then, when the feeding device 2 starts feeding out the wire rod W, the wire rod W whose surface is printed by the printing device 3 is lowered by the weight 5a, and the above operation is repeated, so that the printed wire rod W is lowered by the weight 5a.
is intermittently wound up by the winding device 4.

When changing the characters to be printed, print device 3
Another character can be printed on the surface of the wire W by manually shifting the part of the concave dial plate 3e that is attached to the silicone rubber 3c or by replacing the concave dial plate 3e.

〔Effect of the invention〕

As explained above, the present invention uses a concave dial plate and convex silicone rubber to print desired characters, etc. on a wire rod with a circular cross section and a small diameter, which is difficult to print, in a continuous printing operation. It has the remarkable effect of being able to transfer beautifully.

At the same time, the wire material is not damaged during transfer, unlike conventional methods, and an excellent insulation state can be maintained.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is an enlarged perspective view of a holding plate portion of a printing device. In the figure, W... wire rod, 2... sending device, 3... printing device, 4... winding device, 6... control means.

Claims (1)

[Scope of Claims] 1. A feeding device that feeds out the wire, a printing device that prints on the surface of the fed wire, a winding device that winds up the printed wire, and the feeding device intermittently winds the wire into a predetermined position. In a wire printing machine, the printing device is moved up and down by a cylinder, and horizontally moved between a printing position and a character transfer position by a drive motor. It is composed of a rotary support arm that rotates, a printing section that hangs downward from the tip of the rotation support arm, and a concave dial plate that is provided at the character transfer position, and the lower end of the printing section The wire printing machine is provided with a convex silicone rubber that transfers characters from the concave dial plate and prints them onto the wire. 2. The wire printing machine according to claim 1, wherein the printing device further includes a holding plate for holding the wire, and the holding plate is provided with a holding groove for preventing the wire from shifting laterally.