JPH02312109A - Length marking device - Google Patents

Abstract

PURPOSE:To print the making line length in the position according with the measured length by printing on a marking cable in order at a printing part provided on the circumferential surface responding to an electric signal of a rotation amount of a measuring tape role. CONSTITUTION:A length marking device 1 includes a measuring means 3, which has a marking cable 2 between a belt driving part 30A and a guide role 33 for outputting a measured amount of the marking cable 2 as a rotary angle signal 38 and a pulse signal emitting means 4 outputting a pulse signal 4A responding to the rotary angle signal 38 every unit rotary angle. The constitution also includes a printing means 5, which converts this pulse signal 4A into a rotary angle signal 5B while driving a printing roller 20 to stamp a line length mark on the marking cable 2. While measuring the length of the marking cable 2, the line length is printed on the marking cable 2. Thereby, the stamp line length can be printed in the position according with the measured length on the marking cable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field] The present invention relates to a length mark device that sequentially prints measurement marks at predetermined intervals on a running marking cable.

[Prior Art] Generally, in a cable manufacturing process, a length mark device is known that measures the length of a cable running in a predetermined direction and sequentially prints the measured value on the cable. As shown in FIG. 2, this length mark device 30 includes a measuring roll 10 and a guide roll 12 that sandwich a marking cable 2 running in the direction of the arrow in the figure, and a rotational force transmitting means to the measuring roll 10. Chain 1 as
It has a configuration in which a printing roll 20 that rotates via a roller 5 is connected and equipped.

The measuring roll 10 has a diameter of D[+++n] and a circumference πD of 1000[n], and is rotated by the marking cable 10 running, and the chain 15
It has a function of driving the printing roll 20 via the roller.

On the other hand, the printing roll 20 is equipped with an electrically heated printing engraving part 21 that stamps the length count on the marking cable 10 at one point on the circumference, and the circumferential locus of the tip of the printing engraving part 21 is It has a diameter of D [mm] and is configured to rotate synchronously with the measuring roll 10. Then, the measuring roll 10 rotates once, that is, the measuring value 1
A strip length [1] is provided on the marking cable 10 for every 000 [aua].

It has the function of engraving [2 pieces,..., [n].

[Problems to be solved by the invention] However, the length mark device 3 according to the above conventional example
0, the contact area of the measuring roll 10 with the marking cable 2 is small, and since the measuring roll 10 and the printing roll 20 are provided close to each other, an excessive load is applied to the marking cable 2. Slippage is likely to occur, and the rotation jl (marking cable 2
There is a large error between the actual measured length of the marking cable 2 and the actual measured length of the marking cable 2, and the actual measured length of the marking cable 2 and the stamped strip length n do not necessarily match, which makes the installation work of the marking cable 2 time-consuming. There was an inconvenience that it took a while. [Object of the Invention] An object of the present invention is to improve the disadvantages of the above-mentioned conventional example and to provide a length mark device capable of printing an engraved strip length on a marking cable at a position that corresponds to the actual measurement length.

[Means for Solving the Problems] Therefore, in the present invention, the lower outer surface of the belt, which is stretched between two rolls disposed facing each other at a predetermined interval in the longitudinal direction, is brought into contact with the marking cable. , a measuring means for outputting the amount of rotation of a measuring roll in contact with an upper outer surface of the belt as an electrical signal; and a measuring means arranged at a position apart from the belt and responsive to the electrical signal of the measuring means. The marking cable is configured to include a printing unit that sequentially prints printing portions provided on the circumferential surface of the marking cable onto the marking cable, thereby achieving the above object.

[Example] Hereinafter, the process of manufacturing a tape-shaped electric wire using the manufacturing method according to the present invention will be explained based on FIG. 1.

Here, the same constituent members as those of the above-mentioned conventional example are given the same numbers.

The length marking device 1 shown in FIG.
. . . 33, and outputs the measuring scale 1 of the marking cable 2 as a rotation angle signal 38, and a pulse signal 4A for each predetermined unit rotation angle in response to the rotation angle signal 38. and a printing means 5 which converts this pulse signal transmission means 4A into a rotation angle signal 5B and drives a printing roll 20 to stamp a strip length mark on the marking cable 2. While measuring the length of the marking cable 2, the strip length n1 is measured on the marking cable 2, for example [1], [2], .
..., [n] is printed.

The measuring means 3 is connected to a marking cable 2 as shown in the figure.
Guide rolls 31. are arranged oppositely along the longitudinal direction.
A belt drive unit 30A in which a belt 3A is stretched around 32;
A plurality of guide rolls 33, 33. arranged in the longitudinal direction.・
. . , 33 and the amount of movement of the belt 3A as a rotation angle signal 38
and a measuring roll 35 for converting the belt drive unit 30 into
A is brought into contact with the marking cable 2, and the marking cable 2 moving in the direction of the arrow in the figure rotates the belt 3A in the direction of the arrow in the figure, causing the measuring roll to rotate 35 degrees. ing.

This measuring roll 35 has a diameter D [IIfl] and a circumference πD−
500 [r+m], and has a function of converting the amount of movement of the belt 3A, that is, the length measurement of the marking cable 2, into a rotation angle signal 38 and outputting it to the pulse signal transmitting means 4.

If the circumference πD of the measuring roll 35 is 500 [++nn], the pulse signal transmitting means 4 inputs the rotation angle signal 38, for example, 360°1500 [IIl+n]20.

Based on the calculation of 72°, 0.72° 4 shaku roll 3
It has a function of outputting a pulse signal 4A to the printing means 5 every time the printing means 5 rotates.

The printing means 5 converts the pulse signal 4A into a rotation angle signal 5B.
a rotation control unit 51 that converts the rotation angle into a rotation angle signal 5B, a drive motor 52 that rotates in response to this rotation angle signal 5B, a first sprocket 53 that is driven by this drive motor 52, and a first sprocket 53 that is driven by this drive motor 52;
The second sprocket 54 receives driving force from the second sprocket 53 via a chain 55.

This printing roll 20 is provided with a printing engraving part (hot printing engraving part) 21 on the circumferential surface, and the diameter of the circumferential locus at the tip of this printing engraving part 21 is 2D [ms+]. That is, the circumference of the circumferential locus is 2πD[1lIII], and the printing roll 20 is placed on the marking cable 2 with a 2π
D=1000 It has a function of printing the length mark n, that is, [1], [2 pieces, . . . [n], every [n+n].

The rotation control section 51 has a function of outputting a rotation angle signal 5B for rotating the drive motor 52 by 0.72 degrees every time the pulse signal 4A is input, thereby controlling the amount of rotation of the drive motor 52. In this embodiment, the amount of rotation of the print roll 20 is controlled, so that when the measuring roll 35 rotates twice, the print roll 20 rotates once.

As described above, in this embodiment, the measuring means 3 and the printing means 5 are completely separated, so that the measuring means 3 can be made lighter, less likely to be misaligned, and moreover, the length measurement quantity can be converted into a digital signal once. Since the rotation of the drive motor 52 of the printing means 5 is electrically controlled, high-precision control is possible, the reliability is high, and the error between the actual measured length and the strip length marking position can be corrected with high precision.

Note that the measuring roll 10 of the length mark device 30 shown in FIG. If the configuration is such that it is directly driven, marking accuracy will be improved. Further, although the pulse signal transmitting means 4 is of a digital type, the present invention is not limited to this, and a tacho generator (analog type) may be used to directly drive the drive motor 52.

[Effects of the Invention] Since the present invention is configured as described above, the length of the marking strip can be printed on the marking cable at a position that matches the actually measured length.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a length mark apparatus according to the present invention, and FIG. 2 is a block diagram of a conventional length mark apparatus. 1... Length mark device 2...
・・・・・・・・・Marking cable 3・・・・・・
...... Measuring means 4 ...... Pulse signal generation Q means 5 ...
......Printing means 20...Printing roll 21...Printing engraving section 35...Measure roll 38...Rotation angle signal 51...Rotation control section 52...Drive section 3A...Belt

Claims (1)

[Claims] A marking cable is brought into contact with the lower outer surface of a belt that is stretched between two rolls that are arranged facing each other at a predetermined interval in the longitudinal direction, and a measuring meter is brought into contact with the upper outer surface of the belt. A measuring means for outputting the amount of rotation of the roll as an electric signal; and a measuring means disposed at a position apart from the belt and in response to the electric signal of the measuring means, the printing portion provided on the circumferential surface of the measuring means is sequentially printed on the measuring means. A length mark device comprising a printing means for printing on a marking cable.