JPH10100524A - Marking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disperse a load at the time of marking by pressing a press and to clearly mark a plate by a small pressing force by providing a marking seal at an end face of the press and forming a marking surface of a marking die from a protruding stripe of a striped pattern. SOLUTION: The marking apparatus comprises a piston 1a of a hydraulic cylinder 1, and a marking part having a marking die 3 of a company name, a logo mark or a character on an end face of a marking base 2. The marking part is slidably projected in a direction indicated by the arrow via guides 4 to mark a plate K to be marked. The die 3 has a plurality of rows of sharp protrusion strips like a saw blade in its section. That is, the character or design of the die 3 is formed of a plurality of rows of fringed patterns. When marking, hydraulic oil is fed to the cylinder 1 to press the base 2, and its sealing surface is brought into contact with the plate K and the plate K is marked. In this case, since the die 3 marks the plate K so as to form the pattern as a whole, its pressing force is dispersively acted at the end of the strip, and hence clear marking can be performed with the small pressing force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking device for marking characters, logo marks, etc. on the surface of a case of a small electronic component or the like.

[0002]

2. Description of the Related Art For example, when mass-producing home electric appliances, a large number of electronic components are used in the home electric appliances, and each electronic component is manufactured individually by a company specializing in each individual component. The form is common. Each of the above-mentioned individual electronic components generally contains a functional component in a case, and a name of a manufacturing company, a logo mark, characters, and the like are displayed on a corner or the like of the case surface.

In general, such a company name, a logo mark, a character, and the like are engraved by pressing an engraved image of the design and the character on the surface of the component case. Or, it may be lightly stamped with a rubber stamp.

[0004]

When engraving the above-mentioned electronic parts, especially in the case of small electronic parts, the thickness of the case is small, and if the engraving is performed by pressing the engraving on the case, the case may be distorted or greatly wavy. May deform,
In stamping, it is necessary to carefully control the pressing force according to the plate thickness, characters, patterns, etc., and to correct the deformation of the case after stamping.

In the conventional engraving method, a character, a logo mark, etc. are formed as a protruding engraving projecting over the entire width of the engraving line, and the engraving is pressed into a case. This is because the concentrated pressing force is too large and deforms the case plate.

[0006]

According to the present invention, as a means for solving the above-mentioned problems, a press device and a stamp are provided on an end face thereof, wherein the stamp is a company name for stamping a plate to be stamped such as an electronic component case. The stamping device has a protruding stamping type for a logo mark, a character, or the like, and the stamping surface of the stamping type is formed of a stripe-shaped projection.

[0007] When the stamping device having the above-described structure is used to stamp a plate to be stamped, for example, a case plate of an electronic component, the stamping surface of the stamping die is formed of striped ridges, so that a small pressing pressure is required. . This is because, since the tip of the ridge has an acute angle, the load is not pressed on the entire surface of the line width of the character or picture but the load is dispersed on the surface on which the acute ridge hits, so that the pressing force may be small.

For this reason, the total pressure of the stamping pressure applied to the stamping plate is also small, and there is almost no deformation of the stamping plate. Therefore, it is not necessary to correct the deformation of the stamping plate.

The above-mentioned stripe pattern includes a case where the ridges cross each other.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a main cross-sectional view of the marking device of this embodiment. As shown in the drawing, the stamping device is a stamping device having a piston 1a of a hydraulic cylinder 1 which is a pressing device, and a projecting stamping die 3 such as a company name, a logo mark, and characters on an end surface of a stamping base 2 pressed by the piston 1a. The marking portion is formed so that the marking portion is slid and protruded in the direction of the arrow via the guides 4 to mark the marking plate K.

Reference numeral 5 denotes a hydraulic pump, and reference numeral 6 denotes a base plate on which the stamped plate K is placed. The stamped plate K is intermittently sent to a position shown in the figure by a not-shown conveying means.

As shown in FIG. 2, the engraving die 3 has a plurality of rows of sharp ridges such as saw blades. FIG. 4 which is an enlarged view of, for example, a letter H of FIG.
As shown in (a), (b) and (c), characters and pictures are formed by a plurality of rows of striped patterns. In the case of illustration, as a representative example, an oblique line, a horizontal or vertical linear shape is shown.

In the illustrated example, the outside of the character width of the character H is surrounded by a solid outer frame line, which is displayed for convenience to clarify the shape. It is not provided on the stamping die 3.

The engraving is performed as follows by the engraving device of the embodiment having the above configuration. The hydraulic pressure is sent to the hydraulic cylinder 1, the stamp base 2 is pressed, and the stamp surface is applied to the stamp plate K to perform stamping. At the time of this engraving, the engraving die 3 performs engraving with a plurality of rows of acute ridges so as to form a stripe pattern as a whole. Since the pressing force is dispersed at the tip of the strip, the pressing force can be reduced.

For example, when engraving the characters and pictures shown in FIG.
In contrast to the case where Ton (total pressing force) was required, the same engraving could be performed with the engraving device of the above embodiment at about 4 Ton.

In the above-described embodiment, an example is shown in which a stripe pattern is formed from diagonal lines, horizontal or vertical straight lines. However, diagonal lines intersect with each other in the opposite direction, or horizontal and vertical lines intersect with each other. Needless to say, a stripe pattern may be formed in a curved shape.

However, this does not include the case where the engraving pattern is small and the stripe pattern is formed only at the intersection of the ridges.

[0018]

As described above in detail, since the stamping device of the present invention has a striped pattern formed on the stamping die, the load is dispersed and acts upon stamping by stamping, and the stamping is sharp with a small pressing force. Since the engraving can be performed, the power of the press device can be small, and the engraving can be performed with almost no deformation of the engraved plate, so that various remarkable effects such as improvement of working efficiency can be obtained.

[Brief description of the drawings]

FIG. 1 is a main cross-sectional view of a marking device according to an embodiment.

FIG. 2 is a partially enlarged view of the above.

FIG. 3 is a plan view of a stamped surface of a stamped portion.

FIG. 4 is a partially enlarged view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hydraulic cylinder 2 Marking base 3 Marking type 4 Guide 5 Pump 6 Base plate K Marking plate

Claims (2)

[Claims] 1. A press device and a stamp on an end face thereof, wherein the stamp has a protruding stamp type such as a company name, a logo mark, and a character for stamping a stamp plate such as an electronic component case;
An engraving device in which the engraving type engraving surface is formed from stripe-shaped ridges. 2. The marking device according to claim 1, wherein the stripe-shaped projections are formed by oblique lines or horizontal or vertical straight lines with respect to characters and pictures.