JPH07228033A - Marking press - Google Patents

Abstract

PURPOSE:To provide a marking press capable of obtaining sharp printing free from density irregularity or blur at every figure. CONSTITUTION:In a marking press, the pressure values at every figure of six numbering heads 1a, 1b, 1c, 1d, 1e, 1f are detected by the pressure detector 7 connected to pressure sensors 3a, 3b, 3c, 3d, 3e, 3f and marking press plates 2a, 2b, 2c, 2d, 2e, 2f are controlled on the basis of the signal of a computer 11 at every figure by a cylinder so as to be controlled under definite pressure by a marking press plate controller 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamping machine and a stamping machine having a stamping plate.

[0002]

2. Description of the Related Art Numbering head 1 for a conventional marking machine
Is made up of several digits as shown in FIG. 3, a head ring is rotatably attached to the shaft 6, and the numbering head is 0, 1, 2, 3, 4, 5, 6, 7, 8, , 9 and the numbers of characters such as +,-are engraved and engraved. N for each digit of the numbering head
When assembling o and stamping on a card or the like while stamping with a foil, the head ring is slightly deviated from the center of the shaft 6, so that the head ring varies from character to character.
Since the contact of the No markings of the numbering head is not uniform, the pressure of the No markings of the numbering head varies, and there is a drawback that shading and blurring occur at each digit during numbering.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an engraving machine which can eliminate the above drawbacks and can provide stable printing which is clear and does not cause shading and blurring for each digit.

[0004]

According to the present invention, in a marking machine having a numbering head divided into digits according to the number of digits, transmitted from the numbering head,
A sensor for detecting the pressure for each digit of the marking plate facing each of the numbering heads, a calculator for controlling the pressure for each digit of the marking plate by the sensor signal, and a marking plate control for moving the marking plate up and down for each digit A stamping machine characterized by having a container is obtained.

[0005]

The marking machine of the present invention is composed of the same number of marking plates as the number of digits of the numbering head, and when the numbering head descends and comes into contact with the marking plate, the digits of the marking plate respectively facing the numbering head. Each pressure value is detected by the pressure sensor attached to the marking plate, sent to the pressure detector as a signal, and the signal is received by the computer, and the marking plate controller keeps the numbering head pressure constant. By moving up and down, the pressure of the numbering head becomes a constant pressure, and the numbering head presses the card while pressing the foil, and clear and stable printing can be obtained on the card.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view of a marking machine using a pressure sensor according to an embodiment of the present invention. FIG. 2 is a partially enlarged view of a marking machine using the pressure sensor according to the embodiment of the present invention.

The numbering head has an outer diameter φ of 6 digits.
It is composed of 6 iron rings of 40 mm × inner diameter φ10 mm × thickness 3 mm and shafts of the same iron material.
0, 1, 2, 3, 4, on the outer circumference of the numbering head
The numbers 5, 6, 7, 8 and 9 are engraved in a convex shape. The size of the number is such that it fits inside a rectangle with a width of 2.5 mm and a length of 1.5 mm, and the convex part of the number is about 0.5 m.
It consists of a protrusion of about m to 0.8 mm. When stamping on a thin card, etc., use the stamping machine at the purchase stage, when the number printed on the printed number is slightly different due to the slight difference in the outer circumference of the numbering head, the shape of the number, or the convexity. It is considered that the print becomes unclear due to the abrasion of the engraved numbers, which causes the printed numbers to have shades, and the number to be printed to have shades.

As shown in FIG. 1, the stamping machine of the present invention capable of uniformly printing each digit has a numbering head 1 and six marking plates 2 corresponding to the numbering head 1 mounted on a shaft 6. It consists of a pressure sensor 3 attached to each marking plate, a pressure detector 7, a marking plate controller 8 and a computer 11. A foil and a card are installed on the marking plate, and numbers and letters are printed on the card. To do.

FIG. 2 shows a numbering head 1, a foil 5 and
A partially enlarged view of the marking machine including the card 4, the marking plate 2, and the pressure sensor 3 is shown.

The marking plate 2 with the pressure sensor 3 is
The numbering heads 1 are divided by cylinders (not shown) or the like so as to correspond to the number of digits of each numbering head 1, and are vertically movable.

A card 4 to be printed is placed on the marking plate 3, and a foil 5 of about 30 μm is placed on the card 4.

A linear sliding device (not shown) or the like is used as the numbering head, and the foil 5 is pushed in the direction of arrow 9 so that the numbering head does not tilt.

Numbering heads 1a, 1b, 1 for each digit
c, 1d, 1e, 1f press the foil 5 and the card 4 with a predetermined pressure, but the numbering head is a disc-shaped numbering head, which has minute irregularities such as roundness, wear, and outer diameter size. When the foil 5 and the card 4 having good flatness are pressed, the shades of printing such as numbers appear.

In order to prevent the light and shade of the print, the numbering heads 1a, 1b, 1c, 1d, 1e,
Marking plates 2a, 2b, 2c for each digit facing 1f,
It is necessary that 2d, 2e and 2f press the numbering head with a constant pressure in the opposite direction.

Numbering heads 1a, 1b, 1 for each digit
When c, 1d, 1e and 1f press the foil 5 and the card 4, the marking plates 2a, 2b, 2c, 2d, 2 for each digit
e, 2f digit-by-digit pressure sensors 3a, 3b, 3c, 3d,
Numbering heads 1a, 1 for each digit by 3e, 3f
The pressure applied by b, 1c, 1d, 1e and 1f is detected. Marking plates for each digit 2a, 2b, 2c, 2d, 2
Digit pressure sensors 3a, 3 attached to e, 2f
The pressure detector 7 of FIG. 1 detects the pressure of each uneven numbering head by b, 3c, 3d, 3e and 3f.

The computer 11 sends a signal to the marking plate controller 8 in response to a signal from the pressure detector 7, and a cylinder (not shown) attached to the marking plate so as to have a set constant pressure is shown in the direction of arrow 10. The marking plates 2a, 2b, 2c, 2d, 2e, 2f are moved as described above, and the numbering heads 1a, 1b,
The printing pressures of 1c, 1d, 1e and 1f are adjusted to be constant.

As described above, the printing of the numbering head is operated so that a constant pressure is applied for each digit and the printing is performed on the card, so that light and shade of the printing and blurring do not occur.

[0019]

As described above, according to the present invention, it is possible to obtain a clear print with no light and shade for each digit.

[Brief description of drawings]

FIG. 1 is an explanatory view of a marking machine using a pressure sensor of the present invention.

FIG. 2 is a partially enlarged view of a marking machine using the pressure sensor of the present invention.

FIG. 3 is an explanatory view of a conventional marking machine.

[Explanation of symbols]

1 Numbering head 1a, 1b, 1c, 1d, 1e, 1f Numbering head for each digit 2 Marking plate 2a, 2b, 2c, 2d, 2e, 2f Marking plate for each digit 3 Pressure sensor 3a, 3b, 3c, 3d, 3e , 3f Digit pressure sensor 4 Card 5 Foil 6 Shaft 7 Pressure detector 8 Marking plate controller 9 Arrow 10 Arrow 11 Computer

Claims (1)

[Claims] 1. A marking machine having a numbering head divided into digits according to the number of digits, and a sensor for detecting pressure of each digit of the marking plate transmitted from the numbering head and facing each of the numbering heads. An engraving machine having an arithmetic unit for controlling the pressure of each digit of the engraving plate according to the sensor signal and an engraving plate controller for moving the engraving plate up and down for each digit.