JPH09300801A - Stamp device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: During printing or plate making work, the printing plate 1 or the plate making stamp 10 does not drop out of the stamping device 11 or does not move, and the printing plate 1 (plate making finished plate 10) is replaced. Make work easier. SOLUTION: The printing plate 1 is placed on the surface of a flat plate-shaped support body 12 with a grip portion 14 facing down, and a fitted locking body 13 having a rectangular frame shape in plan view is mounted from above the printing plate 1. When the printing plate 1 is swung about the surface of the support 12 by rotating it about its center, both longitudinal end portions of the printing plate 1 are sandwiched by the bottom plates 16a and 16b of the fitted locking body 13 on the surface of the support 12. Most of the printing surface portion 2 of the printing plate 1 is exposed from the lower surface of the fitted locking body 13.
When the projection 21 of the fitted locking body 13 is locked in the locking groove 20 on the other side of the support, the locked state of the printing plate 1 can be maintained, and the printing plate 1 cannot be displaced or come off. Becomes

Description

Detailed Description of the Invention

[0001]

[0001] The present invention relates to a cell having an open cell,
It consists of a sponge-like foamed plastic substrate that can be impregnated with ink, the surface of which is selectively heated by a thermal head, etc. to melt and solidify the part where ink does not penetrate (non-image area) and the non-melting part where ink can penetrate. The present invention relates to a structure of a stamp device for supporting and mounting a printing plate capable of forming a printing surface portion with (image portion).

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 7-251558, a printing plate of this kind in which a mirror image shape of a character (imprint) such as a predetermined character or figure is formed on a printing surface is known. It is thin, soft (soft), or easy to bend. Therefore, in the stamping device, as in the case of the conventionally well-known rubber stamp, the back surface of the printing plate (side surface opposite to the printing surface part) is directly attached to the lower surface of the flat base material with an adhesive, or the back surface of the printing plate is attached. The ink storage pads were stacked and adhered to the bottom surface of the base, and the top of the base was attached with a handle.

[0003]

However, once the printing plate is fixed to the rootstock with the adhesive as described above, it is difficult to peel off the printing plate. If the adhesive strength is high, the peeling work is performed. There was a problem that the printing plate was broken during the process. Further, as disclosed in the above-mentioned prior art, it is extremely easy to form a mirror image shape of a predetermined character on this type of printing plate. In order to preliminarily form mirror image shapes of various characters and to easily replace and use the various printing plates for one stamping device, the means for fixing the printing plates with the adhesive is unsuitable. There was a problem.

Further, in a plate making operation for forming a mirror image shape of the character on a strip-shaped printing plate, the printing plate is moved while pressing the thermal head against the printing surface portion of the printing plate while being fixed on a support. In order to adopt the method, it was necessary that the printing plate could be easily attached to and detached from the support. The present invention has been made to solve these problems, and an object of the present invention is to provide a stamp device in which a printing plate can be easily attached to and detached from a support.

[0005]

In order to achieve the above object, the stamping device according to the invention of claim 1 has a melt-solidifying part which is impermeable to ink and an ink-permeable part to the imprint part of a foamed plastic substrate having open cells. A flat plate-shaped printing plate capable of forming a non-melting part, a support for supporting the back side of the printing plate, and for sandwiching at least a pair of side parts of the printing plate on the support. And a fitted locking body.

[0006] The invention described in claim 2 is the invention according to claim 1.
In the stamp apparatus described in the paragraph (1), one side portion of the fitted locking body is rotatably mounted on one side portion of the support body, and the other side portion of the fitted locking body is disengaged from the other side portion of the support body. It is configured to do. The invention according to claim 3 is the stamp apparatus according to claim 1, wherein the fitted locking body is
The structure is formed in a cylindrical shape surrounding the outer periphery of the support body, and at least the locking means for engaging and disengaging with the support body is provided on the inner surface of the fitted locking body.

[0007]

Next, embodiments of the present invention will be described. FIG. 1 is a perspective view of a printing plate 1 obtained by treating a foamed plastic substrate having open cells with four peripheral side surfaces excluding front and back wide surfaces to make ink impermeable. The original plastic foam substrate is a rigid or semi-rigid polyolefin resin having fine open cells. Further, instead of the above materials, polyurethane resin, vinyl chloride resin, A
A plastic foam having fine open cells made of a BS resin, an ethylene-vinyl acetate copolymer, or another resin can also be used. These plastic foams may be sliced into a flat plate shape by removing the skin covering the outer surface after foaming, or may be used as a stamp surface side in contact with a mold for foaming. Printing plate 1 in the embodiment
Has a thickness of about 1 mm to 3 mm.

As shown in FIG. 1, in order to make the predetermined area of the convex portion of the upper surface of the printing plate 1 where the pores are visible to be the printing surface part 2, the remaining portions (melting and solidifying parts) 3, 4, 5 (of the printing plate 1) The four circumferential side portions of the thickness and the wide lower surface of the printing plate) are pressed by a heated mold so that the pores are covered with the melted and solidified ink impermeable thin film layer. If the wide back surface of the printing plate 1 (the lower surface in FIG. 1) is left as a non-melting part for ink transmission, the ink storage pad can be overlaid on the back surface side of the printing plate 1 for continuous stamping work. Ink supply becomes possible for a long time.

FIG. 2 is a perspective view of a printing plate (this is referred to as a preprinted printing plate 10) in which an image line portion 6 is formed on the printing surface portion 2 in a mirror image shape of a seal imprint of a character such as a predetermined character or figure. It is a figure, and is manufactured by the plate making apparatus 60 as shown in FIGS. That is, the left and right end walls 61 of the frame 61
a guide rod 64 extending in the left-right direction for guiding the carriage 63, and the carriage 6
A head switching rod 67 extending in the left-right direction is mounted for operating the cam body 66 for guiding 3 and for moving the thermal head 65 mounted on the carriage 63 up and down. The cam body 66 is mounted on the head switching rod 67 so as not to rotate and slide in the axial direction. The head switching rod 67 is rotatably supported by bearings 73 provided on the left and right end walls 61a and 61b.

The printing plate 1 is mounted on the lower surface of a stamp device 11 which will be described in detail later, and the stamp device 11 is fixed to a supporting means (not shown) at an upper position where the carriage 63 passes in FIGS. 4 and 5. Has been done. The carriage 63 includes the guide rod 64 and the head switching rod 6.
7, a rack 68 of an appropriate length is provided at the front end of the carriage 63 so as to be able to move left and right, integrally or via a suitable fixing means. Frame 61
Forward and reverse rotatable drive motor 6 fixed to front wall 61c
9 through a reduction gear group 71 disposed on the back surface of the front wall 61c from the drive pinion 70, and transmits power to the mesh gear 72. The mesh gear 72 meshes with the rack 68 to move the carriage 63 left and right (see FIG. It is configured to be able to move in the directions of arrows A and B in FIG.

A cam contact plate 74 is attached to the carriage 63.
The head heat dissipation plate 75 is mounted rotatably up and down via a support shaft 76 in a direction orthogonal to the head switching rod 67, and the thermal head 65 is fixed to the upper end side of the upper surface of the head heat dissipation plate 75. The head radiating plate 75 is always elastically urged by an urging spring 77 inserted between the upper surface of the cam contact plate 74 and the back surface of the head radiating plate 75. The cam body 66 formed in an elliptical shape or the like so as to be in contact with the lower surface of the cam contact plate 74 can change its posture by rotating the head switching rod 67 in the direction of arrow C or D in FIG. In the posture where 66 is laid down in the landscape shape, the thermal head 6
When the head heat radiating plate 75 with 5 is released downward and the cam body 66 is erected, the cam contact plate 74 and the urging spring 77
The thermal radiating plate 75 is pivoted upward through the substrate to press the thermal head 65 against the lower surface of the printing plate 1 fixed in position.

A gear 78 attached to the end of the head switching rod 67 and a gear 7 pivotally supported by the right end wall 61b.
The head switching rod 67 can be rotated in the direction of the arrow C or D by the lever 9 and the lever 80 for rotating the same, thereby changing the posture of the cam body 66.
The thermal head 65 has the same structure as a thermal head in a conventionally known thermal printer, and for example, 96 point-like heating elements are arranged in a line in the direction orthogonal to the arrow A. The column length is set to be slightly longer than the width dimension of the printing plate 1.

A control unit (not shown) of a microcomputer type or the like in the plate making device 60 includes a CPU (central processing unit), a ROM (read only memory), a RAM (random readable / writable memory), an interface, etc.
The thermal head 65 and the drive motor 69 are operated, and as shown in FIG. 4, the cam body 66 is erected to press the thermal head 65 to the right end position of the downwardly facing printing surface portion 2 of the printing plate 1. When the drive motor 69 is driven to drive all the point heating elements in one row in the thermal head 65, the carriage 63 moves at a constant speed in the direction of arrow A. As a result, the ink-impermeable thin film is formed in the portion of the stamped surface portion 2 where the surface of the foamed plastic is melted and solidified, and becomes the ink impermeable melt-solidified portion 7. Next, at a predetermined position of the stamp face portion 2, control is performed so that the dot-shaped heat generating element in the thermal head 65 does not generate heat in accordance with the print dot pattern based on predetermined character data input in advance, as shown in FIG. It is possible to manufacture the plate-making stamp 10 in which the ink-permeable non-melting portion remains as the image portion 6 formed in a mirror image shape of a predetermined character, and the other portion becomes the ink-impermeable melting solidification portion 7. .

Next, the structure of the stamp device 11 will be described. 6 and 7 show a first embodiment of the stamp device 11, which is a support 12 having a rectangular shape in plan view for supporting the back surface of the printing plate 1 which is substantially rectangular in plan view, and the support 12.
And a fitted locking body 13 for sandwiching the printing plate 1. A grip portion 14 is integrally or separately provided on the back surface of the support 12 so as to project therefrom.

As shown in FIGS. 6 and 7, the fitted locking member 13 has a rectangular frame shape in plan view, and has side plates 15 on both left and right sides.
The printing plate 1 is sandwiched by a pair of bottom plates 16a and 16b connecting the lower surfaces of the plates 15 and sandwiched between the bottom plate 16 and the surface of the support 12. A pivot 17 connected to the pair of side plates 15 and 15 above one bottom plate 16a is rotatable and detachably attached to an arcuate bearing portion 18 provided on one side of the support 12. . On the inner surface of the other bottom plate 16b and the vertical side plate 19 that is connected to the pair of side plates 15 and 15, the locking groove 2 is formed in a recess on the side surface opposite to the bearing portion 18 of the support 12.
A protruding portion 21 for locking to 0 is provided. As can be understood from FIG. 6, the surface of the support 12 is formed such that the convex portions 22 are low at the portions of the pair of bottom plates 16a and 16b and are high at other portions, and the printing plate 1
Alternatively, the image area 6 in the plate-making stamp 10 is the bottom plate 16
The bottom plates 16a and 16b are configured so as to protrude outward from the portions a and 16b so that the bottom plates 16a and 16b do not get in the way during plate making and stamping operations.

According to the stamp device 11 having this structure, the printing plate 1 is placed on the surface of the support body 12 with the grip portion 14 facing down, and the fitted locking body 13 and the bearing portion 18 are arranged from above. When the printing plate 1 is swung around the support body 12 to cover the surface of the support body 12, both end portions in the longitudinal direction of the printing plate 1 are attached to the bottom plates 16 of the fitted locking body 13.
While being sandwiched between the surfaces a and 16b of the support body 12, most of the printing surface portion 2 of the printing plate 1 is exposed from the lower surface of the fitted locking body 13 (see FIG. 6). Further, when the projection 21 is locked in the locking groove 20, the locked state of the printing plate 1 can be maintained,
The printing plate 1 becomes misaligned and cannot be removed.

On the contrary, if the projection 21 is removed from the locking groove 20,
Since the space between the fitted locking body 13 and the surface of the support body 12 is opened, the printing plate 1 can be easily removed. 8 and 9
Shows a second embodiment of the stamp device 11, in which the support 12 provided with the grip portion 14 on the back surface side is a flat portion 12a for supporting the back surface of the printing plate 1 at the central portion of the lower surface thereof,
The curved portion 12 whose left and right ends in the longitudinal direction spread upward in a side view.
b, 12b.

The fitted locking body 23 can completely cover the outer periphery of the support body 12, and the curved portions 12b, 12b.
And a flat portion 12a along which the flat portion 12a can be exposed. Further, on the inner surface of the fitted locking body 23, locking recesses 25, 25 as locking means capable of being engaged and disengaged with the engaging claws 24, 24 projecting above the curved portions 12b, 12b. Is provided.

According to the stamp device 11 having this structure, since the outer peripheral surface of the support body 12 and the inner peripheral surface of the fitted locking body 23 are upwardly spread, the printing plate 10 is provided on the flat portion 12a of the support body 12.
When the fitted locking body 23 is covered from the direction of the flat portion 12a of the support body 12 in a state where the wide back surface of the printing plate 1 is abutted, most of the printing surface part 2 of the printing plate 1 is exposed and the length of the printing plate 1 is increased. Both ends in the direction are sandwiched by the fitted locking bodies 23 along the curved portions 12b, 12b of the support body 12. Further, in the illustrated embodiment, both longitudinal end portions of the printing plate 1 are also pinched and locked between the engaging claws 24 and the locking recesses 25, so that they do not move or fall off. Even if the locking recess 25 of the fitted locking body 23 fitted to the support body 12 is directly engaged with the engaging claw 24 of the support body 12, both end portions in the longitudinal direction of the printing plate 1 are formed. Can be firmly held between the fitted locking body 23 and the support body 12.

The support 12 and the fitted locking body 23 may be formed of a synthetic resin material, or only the fitted locking body 23 may be formed of a soft or semi-hard material such as rubber. Is also good. Further, an engaging claw is provided on the inner surface of the fitted locking body 23,
A locking recess may be formed on the support 12 side. In addition, on the lower end side of the tubular fitting locking body 23,
The corner portion along the longitudinal edge of the stamp face portion 2 is a flat portion 12 of the support body 12.
Longitudinal ridges may be formed so as to be sandwiched between the a corners.

In each of the above-mentioned embodiments, when the stamp plate 11 having the above-mentioned structure is mounted with the printing plate 1 and fixed at a predetermined position of the plate-making device 60 and the above-mentioned plate-making operation is executed, the printing plate 1 is
A seal composed of the ink-impermeable melt-solidifying portion 7 and the ink-permeable non-melting portion can be easily formed on the stamp surface portion 2. In this case, since the non-melting portion (image area 6) capable of penetrating the ink is configured to be slightly higher than the melting and solidifying portion 7 which cannot permeate the ink, the imprint becomes clear.

The width dimension H1 of the head heat dissipation plate 75, which is equal to the row length of the dot-shaped heating elements in the thermal head 65, is used.
Is set to be slightly wider than the width dimension of the printing surface portion 2 of the printing plate 1, and the surfaces of the printing surface portion 2 other than the image area 6 are formed as the ink-impermeable melt-solidifying portion 7, and ink is removed from unnecessary portions. Can be prevented from leaking. When the stamping device 11 is used to imprint a recording medium such as paper, the printing plate 1
Since the back surface side of the stamped surface portion 2 is supported by the flat portion 12a of the support body 12 and projects outward from the lower end of the fitted locking body 23, the fitted locking body 23 does not interfere with the imprinting work.

In each of the above embodiments, the printing plate 1
When the plate 1 is mounted on the support 12, the plate 1 can be reliably held in position without moving from the support 12 even if the printing surface 2 of the plate 1 is rubbed by the thermal head 65 or the like during the plate making work. Has the effect of being able to reliably execute. In order to remove the completed plate making stamp 10, it is sufficient to remove the plate making plate 10 from the support 12 by the unique method of each of the above-mentioned embodiments, and then a new printing plate 1 is mounted again, By repeating the plate-making work, the plate-made stamp 10 on which an arbitrary stamp is formed can be easily and quickly manufactured.

Further, the completed plate-making stamp 10 is pressed against an ink storage pad (not shown) with the stamping device 11 still mounted on the stamping device 11, or from the image-forming portion 6 which is a non-melting portion through which ink can pass. After the ink is absorbed inside, it may be imprinted on a recording medium such as paper.

[0025]

As described above, according to the stamp device of the invention described in claim 1, the ink-impermeable melt-solidifying part and the ink-permeable non-melting part are formed on the imprint surface of the foamed plastic substrate having open cells. A plate-shaped printing plate capable of forming a printing plate, a support for supporting the back side of the printing plate, and a fitting member for sandwiching at least a pair of side portions of the printing plate on the support. Since it is composed of a stopper, it is detachable so that the printing plate can be sandwiched between the support and the fitted locking body, so that the work of attaching and detaching the printing plate to and from the stamping device can be made extremely easy. it can.

Further, in the locked state, even if the posture of the stamp device is changed so that the printing plate faces downward, the printing plate does not fall off. Furthermore, since the work of attaching / detaching and replacing the printing plate is easy, the printing plate can be replaced and repeatedly used. According to a second aspect of the invention, in the stamp apparatus according to the first aspect, one side portion of the fitted locking body is rotatably attached to one side portion of the support body,
Since the other side portion of the fitted locking body is configured to be disengaged from the other side portion of the support body, even if the printing plate is soft or easily bent, Even if it is thin, there is an effect that attachment and detachment work is extremely easy. Since the printing plate and the fitted locking body are detachable, it is extremely easy to replace a plurality of printing plates with a single stamp device.

Further, the invention according to claim 3 is the stamp apparatus according to claim 1, wherein the fitted locking body is formed in a cylindrical shape surrounding the outer periphery of the support body and Since the inner surface is provided with at least a locking means that engages and disengages with the support body, both do not move in the mounted state of the fitted lock body with respect to the support body, and consequently the printing plate does not move.

[Brief description of drawings]

FIG. 1 is a perspective view of a printing plate.

FIG. 2 is a perspective view of a prepressed printing plate.

FIG. 3 is a perspective view of a main part of the plate making apparatus.

FIG. 4 is a side sectional view taken along line IV-IV of FIG. 3;

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

FIG. 6 is a partially cutaway side view of the first embodiment of the stamp device.

FIG. 7 is a perspective view of essential parts of a support body and a fitted locking body.

FIG. 8 is a perspective view of each component of the second embodiment of the stamp device.

FIG. 9 is a side sectional view of a printing plate mounted state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printing plate 2 Printing surface part 10 Plate-making completed printing plate 11 Stamping device 12 Supporting body 13,23 Fitting locking body 14 Handle part 15,15 Side plate 16a, 16b Bottom plate 17 Pivot 18 Bearing 20 Locking groove 21 Projection part

Claims (3)

[Claims] 1. A plate-shaped printing plate capable of forming an ink impermeable melted solidified portion and an ink permeable non-melting portion on a printing surface portion of a foamed plastic substrate having open cells, and a back surface of the printing plate. A stamp device comprising: a support for supporting a side and a fitted locking body for sandwiching at least a pair of side portions of a printing plate on the support. 2. A one-side portion of the fitted locking body is rotatably mounted on one side portion of the support body so that the other side portion of the fitted locking body is engaged with and disengaged from the other side portion of the support body. The stamp device according to claim 1, wherein the stamp device is configured as described above. 3. The fitted locking body is formed in a cylindrical shape surrounding the outer periphery of the support body, and the inner surface of the fitted locking body is provided with at least locking means for engaging and disengaging with the support body. The stamp device according to claim 1.