JPS61158456A - Tape measure tape manufacturing equipment - Google Patents

Abstract

PURPOSE:To make compact each of tape measure tape manufacturing equipment and raise the tape printing speed with a controller/signal processor provided which drives and controls a printing means according to the printing speed signal from a speed detector and the printing pattern input signal from a printing pattern input means. CONSTITUTION:In the embodiment of the present invention, a controller/signal processor means 8 outputs a drive signal S3 to a printing means 5 according to a printing pattern input signal S1 from a printing pattern input means 7 and a printing speed signal S2 from a speed detector means 6, wherein the printing means prints a pattern of the graduation pitch which has been input to the print face synchronously with the running speed of a tapeline tape 2 according to the drive signal, whereby by tapeline tape manufacturing equipment exceeds the rubber relief printing system in respect of printing speed, yield of printing, power consumption cost, and wear-proofness as well as said equipment can have the performance of printing improved.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a printing method for printing printing patterns such as scales, single numbers, symbols, etc. on a measuring tape running between a sending section and a winding section. The present invention relates to a manufacturing device for a tape measure used in a manufacturing process.

(Prior Art) Conventionally, a large drum-type printing plate cylinder has been used as a means for printing scales, single numbers, symbols, etc. on F4 tape measure tapes and fiber tape measure tapes. letterpress printing, planographic printing,
Intaglio printing, stencil printing, etc. are used, and among them, letterpress printing or gravure printing is particularly popular.

(Problems to be Solved by the Invention) However, the above printing means has the following problems.

■ Attaching the printing plate to the plate cylinder requires skill and is time consuming.

■ Change the printing pattern (e.g. in centimeters -
(in inch units) requires the printing plate to be reattached, or if a dedicated plate cylinder is used, the plate cylinder must be replaced, and furthermore, it takes a very long time to adjust the scale pitch.

■ When printing consecutive numbers on measuring tape.

It is necessary to increase the diameter of the plate cylinder or use a horizontal sliding method, which requires a large space.

■ When printing, the printing plate is pressed against the measuring tape, so 1
Variations in the tension on the measuring tape.

It is also necessary to deal with meandering of the measuring tape, etc., which hinders the improvement of printing speed.

(Means for Solving the Problems) The measuring tape manufacturing apparatus according to the present invention includes two speed detecting means for detecting the running speed of the tape measuring tape.

Printing means for continuously printing printing patterns such as scales on the running tape measure tape, pattern manual means for inputting the print patterns to be printed on the tape measure tape, speed detection signals from the speed detection section, and pattern input and a control processing section that drives and controls the printing means based on a pattern input signal from the means.

(Function) When one printing pattern, for example, a millimeter display, is input from the pattern input means, the control processing means
The print pattern input from this pattern input means,
The printing means is driven and controlled based on the running speed detection signal of the measuring tape from the speed detecting means to print a printing pattern on the second measuring tape. (Example 1) FIG. 1 shows a schematic configuration of a measuring tape manufacturing apparatus according to the present invention.

1 is the feeding part of the measuring tape 2, and 3 is the winding part.

A measuring tape 2 wound around a sending part 1 is continuously wound up by a winding part 3. A printing means 5 is arranged opposite to the printing surface 4 of the measuring tape 2 running between the sending section 1 and the winding section 3. As the printing means 5, an inkjet type recording device (not shown) is suitable.

Further, a speed detecting means (for example, a rotary encoder) 6 for detecting the running speed of the tape 1 tape 2 is provided near the printed surface 4 of the tape 2 for the tape measure 2. 7 is a pattern input means for inputting a printing pattern to be printed on the printing surface 4 of the measuring tape 2, such as a millimeter unit, a 2-inch unit, a 9-shaku unit, a logarithmic scale display, a discontinuous scale display, a bar code display, etc.; 8 is a control processing means using a microcomputer or the like.

Next, the operation of the measuring tape manufacturing apparatus having the above configuration will be explained.

The control processing means 8 receives the pattern input signal S from the pattern input means 7 and the speed detection signal S from the speed detection means 6.
2, a drive signal S3 is output to the printing means 5. The printing means 5 prints the inputted printing pattern on the printing surface 4 while synchronizing the scale pitch with the running speed of the tape 2 for two measuring tapes based on this drive signal S3.

Next, 9. Apparatus for manufacturing a tape measure according to the present invention (using an inkjet recording device as a printing means)
The table below shows the experimental values comparing this and conventional rubber letterpress printing. Here, the measuring tape 2 is made of a copper band coated with a white acrylic material by baking, black solvent-based ink is used for the graduation lines, and red solvent-based ink is used for the numbers. Furthermore, the inkjet type recording device used in the printing means 5 is as follows.

A nozzle with a diameter of 60 μm and a dot configuration of 5×7 was used.

As is clear from the experimental values in the table, the method of the present invention is superior to the conventional rubber letterpress method in all aspects of printing speed, yield, power cost, and abrasion resistance (durability).

(Embodiment 2) This embodiment is shown in FIG. 2, and two printing means 5, 5 are provided on the upper and lower surfaces of one measuring tape 2, facing each other. The other configurations are the same as in the first embodiment. In this way, it is not only possible to print both sides of one measuring tape 2 at the same time, but also to print two types of printing patterns with different pitches (for example, 1-inch unit display and logarithmic scale display) on both sides at the same time. .

FIG. 3 shows an apparatus for manufacturing a tape measure according to the first and second embodiments described above, in which a CCD camera 10 and a light source 11 for the CCD camera are added. A CCD camera 10 and a light source 11 for the CCD camera are respectively disposed at upper and lower positions of one measuring tape 2 in between. In this way, even if the tape measure tapes 2 to be printed have different widths, continuous printing can be performed on the same line while measuring the tape width with the CCD camera 10. Furthermore, even if the measuring tape 2 meanders as shown in FIG. 4, the CCD camera 10 detects the meandering of the measuring tape 2, and the control means 8 controls the printing means 5 to Scales and the like can be printed at accurate positions on the printing surface of the tape 2.

Further, FIG. 5 shows the measuring tape manufacturing apparatus of the above-described first and second embodiments in which a temperature/humidity sensor 12 is added. This temperature/humidity sensor 12 corrects the expansion/contraction error of the tape measure tape 2 due to differences in temperature and humidity during printing, and allows a print pattern to be printed on the tape measure tape 2 in a pinch after temperature and humidity correction.

Note that if the measuring tape 2 has a mark (for example, a hole, magnetism, etc.), a printing pattern can be printed in synchronization with this mark. That is, it is possible to count the number of marks with a counter and match the counted number of marks with a printed pattern such as a scale.

(Effects of the Invention) As explained above, according to the present invention, it is possible to downsize the apparatus used in the printing process of @general purpose tape, and
It can respond immediately to changes in printing patterns and is ideal for high-mix, low-volume production.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention. Figure 1 is a schematic configuration diagram showing Example 1, Figure 2 is Example 2.
FIG. 3 is a schematic configuration diagram showing a CCD camera and a light source for the CCD camera, and FIG. 4 is a schematic plan view showing a meandering state of the measuring tape. FIG. 5 is a schematic configuration diagram to which a temperature/humidity sensor is added. 1... Sending part 2... Tape for measuring tape 3...
- Winding section 5...Printing means 6...Speed detection means 7...Pattern input means 8...Control processing means

Claims (1)

[Scope of Claims] 1) A device used in a printing process for printing scales, numbers, characters, symbols, etc. on a tape measure tape running between a sending section and a winding section, comprising: A speed detection means for detecting a running speed; a printing means for continuously printing a print pattern such as a scale on a tape measure tape while it is running; a pattern input means for inputting a print pattern to be printed on the tape measure tape; 1. An apparatus for manufacturing a measuring tape, comprising: a control processing section that drives and controls a printing means based on a speed detection signal from the section and a pattern input signal from the pattern input means. 2) The measuring tape manufacturing apparatus according to claim 1, wherein the printing means is an inkjet recording device.