JPH1095155A - Seal material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal material not generating what are called sags on end edge sections and preventing the generation of defective melt or white lines. SOLUTION: A seal material is used in a device forming a printed face to a unit seal material 12A of given size. A plurality of cut channels 21a opened on one sides in the thickness direction are formed on a sheet-shaped seal material 21 by moving a slice blade 22 to divide the seal material into a plurality of unit seal materials 12A. Adjoining unit seal materials 12A are connected one another on the other sides of the cut channels 21a through separable fragile sections 21b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing material used in an apparatus for forming a printing surface by selectively heating the surface of a printing material made of a porous sheet that can be impregnated with ink by a thermal head.

[0002]

2. Description of the Related Art In general, a stamp manufacturing apparatus is known in which a thermal head is pressed against a surface of a printing material and selectively heated to form a printing surface to manufacture a stamp.

[0003] The printing material used in such an apparatus is limited to a printing material of a certain size (hereinafter referred to as a unit printing material) in relation to the space of a portion where the printing material is set.

On the other hand, if unit stamps are manufactured and several sheets are set and packed, the efficiency of the packing operation is low.

For this reason, conventionally, as shown in FIG. 7, for example, a sheet-shaped stamp material a corresponding to five unit stamp materials, for example, is used.
Are punched out with a press machine (for example, Thomson type), excluding both end portions, and punching out only the center portion.
Is formed, and the five unit stamp materials c are manufactured in a state of being connected in a separable manner. That is, the unit stamp material c is manufactured as a set of five sheets, and at the time of use, they are separated one by one to form the unit stamp material c, which is applied to the stamp manufacturing apparatus.

[0006] Further, when a printing material having an area larger than a unit printing material is manufactured using such a device, there is a limit to the size of the printing material that can be manufactured at a time by the above-described device.
It is divided into a plurality of parts, each part is separately formed with a unit stamp material, and finally, they are combined and applied to a stamp base that can hold the large stamp material, and stamping is performed.

[0007]

However, when punching out by a press (for example, Thomson type) in this way, the unit stamp material c is formed at the end where the punching hole b is formed as shown in FIG. A so-called sag e (roundness caused by press working) occurs at the edge, and the surface on which the printing surface is formed is not a uniform flat surface. May not contact the thermal head (heating element) well, and may cause poor melting.

Further, when such defective melting occurs, as described above, when a plurality of unit stamps are used in combination, as shown in FIG.
When divided into two parts f2, as shown in FIG.
There is a possibility that a so-called white line h, in which no seal is made, occurs at the portion where the seal imprints g1 and g2 are joined by f2, and a desired seal imprint cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a printing material in which so-called sagging does not occur at an edge portion and in which poor melting and white lines are prevented.

[0010]

According to a first aspect of the present invention, there is provided a stamp material used in an apparatus for forming a printing surface on a unit stamp material having a fixed size. A plurality of cutting grooves formed by a cutting blade to be cut and having one side in the thickness direction of the stamp material opened are divided into a plurality of unit stamp materials having a size attachable to the above-described apparatus. The other side of the groove is connected via a separable weak portion.

Therefore, since the force grooves formed by the slicing blades are used, so-called sagging does not occur at the edge of the printing material, and the problem of poor melting does not occur.

According to a second aspect of the present invention, there is provided a stamp material, wherein a plurality of the unit stamp materials are combined with a fixed positional relationship to form one stamp plate, so-called a so-called edge portion of the stamp material. Since no sagging occurs, no so-called white line problem occurs.

Further, in the printing material according to the third aspect, the unit printing material can form a printing surface on both the front side and the back side, and can be effectively used.

Further, the printing material according to the fourth aspect is made of a porous material that can be impregnated with ink, and is selectively heated by a thermal head to form a printing surface. Can be stamped continuously.

[0015]

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

FIG. 1 is a perspective view of a stamp. The stamp 11 includes a printing plate 12 made of a rectangular sheet-shaped unit printing material,
A stamp base 13 for holding the back side of the printing plate 12; The stamp base 13 is formed with a grip 13 a on the side opposite to the side holding the printing plate 12.

The printing material used for the printing plate 12 is a porous sheet that can be impregnated with ink, such as a foaming resin sheet having open cells, and has a certain size that can be manufactured by a manufacturing apparatus 60 described later. The printing surface can be formed on both the front side and the back side. The material of the porous sheet is not particularly limited as long as it can be impregnated with ink and can be manufactured by a manufacturing apparatus described later. Further, the printing plate 12 may be used in such a manner that a plurality of printing plates made of a unit printing material are combined in a fixed positional relationship to form one printing plate. In this case, a plurality of printing plates are used. It is necessary to use a stamp table that can be held.

The printing surface of the printing plate 12 is formed by selectively heating the surface of a printing material by a thermal head 65, as will be described later. As shown in FIG. 1 and FIG. Is formed by a melt-solidified portion 14 through which the ink is melt-solidified and through which the ink does not pass, and a non-melting portion 15 (image portion) through which the pores on the surface are not melt-solidified and through which the ink can pass. Therefore, the ink impregnated in the printing plate 12 oozes out only through the non-melting portion 15, and when the printing surface of the printing plate 12 is pressed against a recording paper (not shown),
Characters, figures, and the like formed by the non-fused portion 15 are stamped.

The plate making of the printing plate 12 is performed by a stamp manufacturing apparatus 60 shown in FIGS.

As shown in FIG. 3, the manufacturing apparatus 60 includes:
Left and right end walls 61a, 61b and front wall 6 connecting them
1c is provided. Frame 61
A guide rod 64 that extends in the left-right direction and guides the carriage 63 and a head switching rod 67 that guides the carriage 63 in cooperation with the guide rod 64 are arranged in parallel between the left and right end walls 61a and 61b. I have.

The carriage 6 is attached to the head switching rod 67.
3 has a function of operating a cam member 66 having an elliptical shape or the like for raising and lowering the thermal head 65 mounted thereon. The cam member 66 is mounted on the head switching rod 67 so as to be non-rotatable and slidable in the axial direction. The head switching rod 67 is rotatably supported by bearings 73 provided on the left and right end walls 61a, 61b.

As shown in FIGS. 4 and 5, the above-described stamp 11 is fixed to a support means (not shown) at an upper position where the carriage 63 passes. The carriage 63 is supported movably in the left-right direction (axial direction) with respect to the guide rod 64 and the head switching rod 67, and a rack 68 of an appropriate length extending left and right is integrally or appropriately fixed to the front end of the carriage 63. It is fixed via means. A forward / reversely rotatable drive motor 69 is fixed to a front wall 61c of the frame 61, and a drive pinion 70 of the drive motor 69 is connected to a meshing gear 72 via a reduction gear group 71 arranged on the back side of the front wall 61c. The power is transmitted, and the meshing gear 72 is meshed with the rack 68 so that the carriage 63 can be moved left and right (in the directions of arrows A and B in FIGS. 3 and 4).

The carriage 63 has a cam contact plate 74
A head radiator plate 75 located above the head radiator plate 75 is provided rotatably up and down via a support shaft 76 in a direction orthogonal to the head switching rod 67. A thermal head 65 is fixed on the upper surface of the head heat radiating plate 75 and on the side opposite to the side supported by the support shaft 76. A spring 77 is interposed between the cam contact plate 74 and the head radiating plate 75,
The head 77 is always urged by the spring 77 so as to rotate upward.

The cam member 66 is provided on the cam contact plate 7.
4 is provided so as to contact the lower surface of the cam member 66.
The posture is changed by rotating the head switching rod 67 in the direction of arrow C or D in FIG. Then, in the posture in which the cam member 66 is laid down horizontally, the head heat radiating plate 75 including the thermal head 65 is released downward, and when the cam member 66 is erected vertically, the cam contact plate 74 and the spring 77 are interposed. Then, the heat radiating plate 75 is rotated upward, so that the thermal head 65 is pressed against the lower surface of the stamp 11 (the unit stamp material 12A) whose position is fixed.

More specifically, a gear 78 is attached to the end of the head switching rod 67, and another gear 79 meshing with the gear 78 is supported by the right end wall 61b so as to rotate integrally with the gear 79. A lever 80 is connected to the cam member 66 so that the attitude of the cam member 66 can be changed by rotating the head switching rod 67 in the arrow C or arrow D direction.

The thermal head 65 has the same structure as a thermal head in a conventionally known thermal printer. For example, 96 point-like heating elements are arranged in a line in a direction orthogonal to the arrow A. The width H1 of the head radiating plate 75, which is equal to the row length of the dot heating elements, is set to be slightly longer than the width of the unit stamp material 12A.

Although a control system of a microcomputer type or the like in the manufacturing apparatus 60 is not specifically shown,
The apparatus includes a CPU, a ROM, a RAM, an interface, and the like, and operates the thermal head 65 and the drive motor 69.

Therefore, for example, as shown in FIG. 4, the cam member 66 is raised and the thermal head 65 is
When the drive motor 69 is driven while pressing the right end position of the downwardly facing stamped portion in FIG.
Moves at a constant speed in the direction of arrow A.

Thus, at a predetermined position on the surface (printing surface) of the unit stamp material 12A, based on the pattern data of characters and the like input in advance, the point heating elements of the thermal head 65 are prevented from generating heat according to the printing dot pattern. For example, as shown in FIG. 1, the non-melting portion 15 which is ink-permeable as an image portion formed in a mirror image shape of a predetermined character remains, and only the other portion is melted and solidified and ink cannot be transmitted. The stamp 11 is manufactured.

Further, as shown in FIG. 6, the unit stamp material 12A used for the stamp 11 is separated from a set of five sheet stamp materials 21 one by one and used.

The sheet-shaped stamping material 21 is formed by moving the slice blade 22 for each predetermined width and cutting it. That is, the cutting by the slice blade 22 forms a plurality of cut grooves 21 a, which are open on one side in the thickness direction, in the sheet-shaped stamp material 21, and a plurality of cut grooves 21, which are sized to be attachable to the device 60. It is divided into unit stamping materials 12A. Then, adjacent unit stamp materials 12A, 12A
These are connected to each other via a fragile portion 21b (thickness t = 0.1 to 0.5 mm) that can be separated on the other side of the cut groove 21a.

Therefore, if necessary, one unit stamp material 1
2A can be easily separated by pulling it against the remaining portion, so that the separated unit stamp material 12A does not cause so-called sagging at the edge, and is uniformly applied to the thermal head 65 up to the vicinity of the edge. Since necessary portions are heated by contact, the problem of poor melting does not occur. Therefore, the sealing performance is excellent.

In addition, since no so-called sagging occurs at the edge of the unit stamp material 12A, a plurality of unit members 12A are joined in a fixed positional relationship to form one stamp. Even if they are formed, so-called sagging is not located at those joints, the printing surfaces are spontaneously joined, and the problem of so-called white line does not occur.

[0034]

According to the stamp material of the first aspect of the present invention,
Is divided into a plurality of unit stamps having a size attachable to the apparatus by a plurality of cuts formed by a slice blade and open at one side in the thickness direction of the stamp. The other side is connected via a separable fragile portion, so that the so-called sagging does not occur at the edge of the stamp material, the problem of poor melting does not occur, and the quality can be improved.

According to the second aspect of the present invention, so-called sagging does not occur at the edge of the stamp material.
Even if a plurality of unit members are combined in a fixed positional relationship to form one printing plate, the so-called white line problem does not occur.

According to the third aspect of the present invention, the unit printing material can be effectively used because the printing surface is formed on both the front surface side and the back surface side.

According to the fourth aspect of the present invention, the printing material is made of a porous material that can be impregnated with ink, and is selectively heated by the thermal head to form a printing surface. It can be stamped continuously without the need.

[Brief description of the drawings]

FIG. 1 is a perspective view of a stamp according to the present invention.

FIG. 2 is a sectional view of the same part.

FIG. 3 is a perspective view of a stamp manufacturing apparatus according to the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV in FIG. 3;

FIG. 6A is a perspective view of a sheet-shaped stamp material according to the present invention,
(B) is a side view of the same part, and (c) is an explanatory view of cutting by a slice blade.

FIG. 7A is a perspective view of a conventional sheet-shaped stamping material, and FIG. 7B is a view of a state where unit stamping materials are separated.

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7 (b).

FIG. 9 is an explanatory diagram of a conventional printing surface.

FIG. 10 is an explanatory diagram of a seal having a so-called white line.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 stamp 12 printing plate 12A unit printing material 21 sheet-shaped printing material 21a cut groove 21b fragile portion 22 slice blade

Claims (4)

[Claims] 1. A stamping material used in an apparatus for forming a printing surface on a unit stamping material of a fixed size, wherein the stamping material is formed by a slice blade which cuts the stamping material by moving the stamping material. The plurality of cut grooves whose sides are open are divided into a plurality of unit stamp materials having a size that can be mounted on the device, and each unit stamp material is connected via a separable weak portion on the other side of the cut groove. A stamping material characterized in that: 2. A stamping material according to claim 1, wherein a plurality of said unit stamping materials are combined in a fixed positional relationship to form one stamping plate. 3. The printing material according to claim 1, wherein the printing surface of the unit printing material can be formed on both the front side and the back side. 4. The printing material according to claim 1, wherein the printing material is made of a porous material that can be impregnated with ink, and is selectively heated by a thermal head to form a printing surface.