JPH09309254A - Rotary stamping device - Google Patents

Abstract

(57) An object of the present invention is to facilitate the work of exchanging the printing plate 1 (the plate-made printing plate 10) with respect to the roller body 12 in the rotary stamp device. SOLUTION: A pair of open ends 23a, 23b are formed by separating one location of an outer peripheral plate 23 of the roller body 12, and a rib 26 protruding radially outward from a boss portion 24 of an inner diameter of the roller body 12 is formed. , A pair of open ends 23a, 23
A holding piece 27 is integrally provided at the tip of the rib 26 so as to face the outer surfaces of the pair of open end portions 23a and 23b and to approach the open surfaces of the open end portions 23a and 23b. The outer surface and the inner surface of the sandwiching piece 27 sandwich and fix the end portion of the printing plate 1 wound around the outer peripheral plate 23, and the support shafts 15 and 15 of the roller body 12 are rotatably attached to both foot portions 14 of the support. Pivot.

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 the structure of a rotary stamp device to which a flexible printing plate capable of forming a printing surface portion with (image portion) is detachably mounted.

[0002]

2. Description of the Related Art Conventionally, for example, a rotary stamping device having an endless printing plate mounted on the outer peripheral surface of a roller body as disclosed in Japanese Utility Model Publication No. 62-22381, or a conventionally known endless strip-shaped stamping device. There was a rotary stamping device for rubber stamps. On the other hand, as disclosed in Japanese Patent Laid-Open No. 7-251558, etc., in this type of printing plate in which a mirror image shape of a character (imprint) such as a predetermined character or figure is formed on the stamp surface, It is extremely easy to create a mirror image shape, so take advantage of this advantage to
It would be convenient if mirror images of various characters were formed in advance on a plurality of printing plates, and the various printing plates could be easily replaced and used for one rotary stamp device.

[0003]

However, this type of printing plate is thin and soft (soft), or has the flexibility to be easily bent, and moreover, this type of printing plate is strip-shaped (strip-shaped). However, since it is difficult to form the belt endlessly, there is a problem that the belt-shaped printing plate cannot be easily attached to or replaced with the roller body in the conventional rotary stamp device.

The present invention has been made to solve this problem, and provides a rotary stamping device in which the above-mentioned flexible printing plate can be easily attached to and detached from a roller body. That is the purpose.

[0005]

In order to achieve the above object, the rotary stamping device according to the present invention is a rotary stamping device according to claim 1, wherein a melted and solidified portion which is impermeable to ink and an ink are impermeable to a printing surface portion of a foamed plastic substrate having open cells. A flexible printing plate capable of forming a permeable non-melting portion, a rotatable roller body for supporting the back side of the printing plate, and a support tool for rotatably supporting the roller body. And a pair of open ends that are formed by separating one portion of the outer peripheral plate of the roller body from each other, and a rib protruding radially outward from the inner diameter side of the roller body is formed between the pair of open ends. A protruding piece is provided integrally with a holding piece for holding the end portion of the printing plate between the open end portion and the pair of open end portions.

[0006] The invention described in claim 2 is the invention according to claim 1.
In the rotary stamp device according to the item (1), at least one of the outer surface of the pair of open ends or the inner surface of the sandwiching piece is provided with a protrusion for pressing the end of the printing plate. According to a third aspect of the present invention, in the rotary stamp apparatus according to the first or second aspect, the pair of open ends are materials that easily bend inward of the roller body due to pressure applied from the outside. It is configured to consist of.

According to a fourth aspect of the present invention, in the rotary stamp apparatus according to any one of the first to third aspects, the foot portion of the supporting member is provided on the inner surface of the outer peripheral plate of the roller body. A guide piece for abutting and guiding is formed.

[0008]

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 foamed plastic substrate is made of an elastic resin such as a semi-hard polyolefin resin having fine open cells. Further, instead of the above materials, polyurethane resin, vinyl chloride resin,
It is also possible to use a plastic foam (made of an elastic resin) having fine open cells made of an ABS resin, an ethylene-vinyl acetate copolymer, or another resin. These plastic foams may be sliced into flat plate strips by removing the skin covering the outer surface after foaming, or the surface contacting the mold for foaming may be used as the stamp surface side. In the embodiment, the printing plate 1 has a thickness of about 1 mm to 3 mm and has flexibility.

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.

In FIG. 2, the image area 6 and the surface of the foamed plastic of the stamp surface portion 2 are melted and solidified on the stamp surface portion 2 in the shape of a mirror image of the imprint of a character such as a predetermined character or figure so that ink cannot pass through. FIG. 6 is a perspective view of a printing plate (which may be referred to as a plate-making completed printing plate 10) on which a melt-solidified portion 7 formed in a thin film is formed, and a plate-making device 60 shown in FIGS. 3 to 5 is used. It is manufactured. That is, a guide rod 64 extending in the left-right direction for guiding the carriage 63 and a cam for guiding the carriage 63 and raising and lowering the thermal head 65 mounted on the carriage 63 over the left and right end walls 61a and 61b of the frame 61. A head switching rod 67 extending in the left-right direction for operating the body 66 is mounted. 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 a lower surface of a flat plate-like root device 8 (or a roller body 1 of a rotary stamp device described later).
2), the undercarriage device 8 is fixed to a supporting means (not shown) at an upper position where the carriage 63 passes in FIGS. 4 and 5. The carriage 63 is
The guide rod 64 and the head switching rod 67 are supported so as to be movable left and right, and a rack 68 of an appropriate length extending leftward and rightward is fixed integrally to the front end of the carriage 63 via an appropriate fixing means. Front wall 6 of frame 61
Power is transmitted from a drive pinion 70 of a forward / reverse rotatable drive motor 69 fixed to 1c to a mesh gear 72 through a reduction gear group 71 arranged on the back surface of the front wall 61c, and the mesh gear 72 is meshed with the rack 68. In addition, move the carriage 63 to the left and right (arrow A direction and arrow B in FIGS. 3 and 4).
Direction)).

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. Further, the head heat dissipation plate 75 is always elastically biased by the biasing spring 77 inserted between the upper surface of the cam contact plate 74 and the back surface of the head heat dissipation 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 apparatus 60 is provided with 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 rotary stamp device will be described. 6 to 11 show a first embodiment of a stamp device, which is a printing plate 1 having a substantially rectangular strip shape in plan view and having flexibility.
(Or a rotatable roller body 12 for supporting the back surface of the plate 10), and the roller body 12 is rotatable.
In addition, the support 13 is detachably mounted. As shown in FIGS. 6 to 8, the support 13 includes a pair of plate-shaped foot portions 14 and 14 projecting downward from the lower end of the handle portion 13a, and each foot portion 14 has a radial center of the roller body 12. In the embodiment of FIG. 6, each foot 14 is integrally projected from the handle 13a, and therefore each foot 14 is protruded from the grip 13a. A concave groove 17 is formed on the inner surface of the so as to communicate with the shaft hole 16 from the lower end and guide the tip of the support shaft 15.

Further, in the embodiment of FIGS. 7 and 8, one plate-shaped foot portion 14 is configured to be detachable from the side surface of the handle portion 13a, and the pins 18, protruding from the side surface of the handle portion 13a,
19 is fitted into the through hole of the foot portion 14. In this case, as shown in FIG. 8, one pin 19 is provided with an engaging projection 19a laterally, and the button 20 rotatably mounted in the through hole of the foot 14 is rotated by an appropriate angle. The mating protrusion 19a is configured so that it cannot be removed.

The roller body 12 formed by injection molding of PP (polypropylene resin), PE (polyethylene resin), nylon resin or the like is as shown in FIGS.
A pair of open end portions 23a and 23b are provided by separating one location of the outer peripheral plate 23 for forming the circumferential surface. The boss 24 and the outer peripheral plate 23 are separated from the pair of open ends 23a and 23b by an appropriate angle (about 120 degrees in the embodiment) at the center angle.
The inner surfaces of the ribs are connected to each other by connecting ribs 25, 25, while the tips (radius outer ends) of the ribs 26 projecting radially outward from the boss 24 toward the space between the pair of open ends 23a, 23b. A holding piece 27 is integrally formed with the holding piece 27 so as to face the outer peripheral surfaces of the pair of open ends 23a and 23b. In the free state of the pair of open ends 23a and 23b, the gap between the outer surface of each open end 23a and 23b and the inner surface of the sandwiching piece 27 is set to be smaller than the plate thickness of the printing plate 1. In the free state, the outer surfaces of the pair of open ends 23a and 23b may be elastically urged radially outward so that the outer surfaces of the open ends 23a and 23b come into contact with the inner surface of the sandwiching piece 27.

Therefore, as shown in FIG. 10 (a), first, the printing plate 1 (while pressing the one open end portion 23a to bend inward in the radial direction against the elastic force of the outer peripheral plate 23 itself. Alternatively, one end portion of the plate-made stamp 10 (hereinafter the same) is inserted into the gap between the one open end portion 23a and the sandwiching piece 27, and then the pressing force is released, so that the open end portion 23a and the sandwiching piece 27 are separated from each other. The edges of the printing plate 1 can be clamped with.
Next, the back surface of the printing plate 1 is placed along the outer surface of the outer peripheral plate 23, and the other open end 23b is curved inward in the radial direction against the elasticity of the outer peripheral plate 23 itself, as shown in FIG. 10 (b). While pressing as much as possible, the other end of the printing plate 1 is connected to the other open end 2
When the pressure is released after being inserted into the gap between 3b and the clamping piece 27, the other end of the printing plate 1 is also clamped in the same manner as described above, and the printing plate 1
Can be mounted on the outer peripheral surface of the roller body 12 very easily (see FIG. 11).

Both support shafts 1 of the roller body 12 thus configured
It suffices to insert 5 and 15 into the shaft holes 16 and 16 of both foot portions 14 and 14 of the support tool 13. To remove the printing plate 1 from the roller body 12, the outer surface of the printing plate 1 is pressed in the inner diameter direction of the roller body 12 in the vicinity of the holding piece 27, so that the open ends 23a and 23b of the outer peripheral plate 23 respectively hold the holding piece. Since it is separated from the inner surface of 27, the end of the printing plate 1 can be easily removed.

12 and 13 show a modified example, in which the width dimension H2 of the connecting ribs 25, 25 and the ribs 26 in the roller body 12 is made shorter than the width dimension H3 of the outer peripheral plate 23, while the both foot portions of the support 13 are formed. Guide pieces 28, 28, which are arcuate in side view and are in contact with the inner surface of the outer peripheral plate 23, are integrally formed at the lower ends of the inner surfaces of 14, 14. With this configuration,
Printing plate 1 (printed printing plate 10) on the surface of a recording medium such as paper
When the roller body 12 is rolled while being pressed, when the open ends 23a and 23b of the outer peripheral plate 23 approach the surface of the recording medium, the open ends 23a and 23 are pressed by the pressing force.
The guide piece 28 restrains b from flexing and deforming in the inner diameter direction of the roller body 12, and the end of the printing plate 1 is inadvertently held by the nipping piece 2.
It is possible to prevent it from coming off from the 7th place.

As shown in FIG. 12, if edge ribs 29, 29 are formed on the circumferential surfaces on both the left and right sides of the outer peripheral plate 23, the long side edge faces of the printing plate 1 along the outer peripheral plate 23 are formed. The right and left edge ribs 29, 29 are restrained so that the ribs 29 and 29 are prevented from shifting. In addition, the protrusions 30, 30 are formed on the inner surface of the sandwiching piece 27 or the outer surfaces of the open end portions 23a, 23b of the outer peripheral plate 23.
By providing 30, the action of pressing and sandwiching the end portion of the printing plate 1 can be improved, and the positional deviation of the printing plate 1 with respect to the roller body 12 and the state in which the printing plate 1 cannot be removed can be further maintained.

In each of the above embodiments, the roller body 1
2 and the support 13 may be formed of a synthetic resin material. In each of the above-described embodiments, by mounting the printing plate 1 on the rotary stamp device having the above-described structure and fixing it at a predetermined position of the plate making device 60 to execute the above plate making work, the carriage 63 moves together with the roller body 12 as the carriage 63 moves. Since the printing plate 1 also rolls, it is possible to easily form on the printing surface portion 2 of the printing plate 1 a seal composed of the ink-impermeable melt-solidifying portion 7 and the ink-permeable non-melting portion. 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 radiator 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 equal to or 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 melt-solidified portion 7 that is impermeable to ink, and unnecessary portions are formed. Ink can be prevented from leaking out. Then, in each of the above embodiments, if the printing plate 1 is mounted on the roller body 12,
It can be said that even if the printing surface 2 of the printing plate 1 is rubbed by the thermal head 65 or the like during the plate making work, the printing plate 1 can be reliably held in position without being displaced from the roller body 12 and the plate making work can be carried out reliably. Produce an effect.

Also, the completed plate-making stamp 10 is pressed against an ink storage pad (not shown) with the rotary stamping device still mounted, or from the image part 6 which is a non-melting part through which ink can pass. After absorbing the ink inside, it is imprinted on the recording medium such as paper. When imprinting on a recording medium such as paper using this rotary stamping device, the back surface side of the printing surface portion 2 of the plate-making stamp 10 is the roller body 12.
If the stamp surface portion 2 is supported by the outer peripheral plate 23 and is wound on the outer peripheral side of the edge ribs 30, 30, it will not interfere with the stamping work.

Since the plate-made stamp 10 can be easily removed from the roller body 12, the plate-made stamp 10 on which a new or another arbitrary stamp is formed is mounted on the roller body 12 to imprint the stamp. It is extremely easy to do. Further, it is also possible to remove the plate-making stamp 10 mounted on the flat plate-shaped rooting device 8 to make the plate and mount it on the roller body 12.

[0026]

As described above, according to the rotary stamp device of the invention described in claim 1, the ink impermeable melt-solidified part and the ink impermeable non-permeable part are formed on the imprint surface part of the foamed plastic substrate having open cells. A flexible printing plate capable of forming a fusion zone, a rotatable roller body for supporting the back side of the printing plate, and a support tool for rotatably supporting the roller body, A pair of open end portions is formed by separating one part of the outer peripheral plate of the roller body, and a rib protruding radially outward from the inner diameter side of the roller body is provided between the pair of open end portions, A holding piece for holding the end portion of the printing plate between the pair of open ends is integrally provided at the tip of the rib.

Therefore, since both ends of the printing plate wound on the outer peripheral plate of the roller body are opposed to each other by sandwiching them between the pair of open ends and the holding piece, the printing plate for the rotary stamp device can be detached. The attachment / detachment work and the replacement work can be made extremely easy. Further, when the printing plate is mounted on the roller body, the printing plate does not come off from the roller body, and 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.

The invention described in claim 2 is the same as claim 1
In the rotary stamp device according to the item (1), at least one of the outer surface of the pair of open ends or the inner surface of the sandwiching piece is provided with a protrusion for pressing the end of the printing plate. According to this structure, the mounting and holding strength of both ends of the printing plate with respect to the roller body is improved. Therefore, even if the printing plate is soft or easily bent, the printing plate is thin. Also, there is an effect that the printing plate can be prevented from moving relative to the roller body in the mounted state.

According to a third aspect of the present invention, in the rotary stamp apparatus according to the first or second aspect, the pair of open ends are easily moved inward of the roller body by pressure applied from the outside. It is configured to be made of a flexible material. According to this configuration, when the end portion of the printing plate is sandwiched between the open end portion and the sandwiching piece, a large force is not required,
The effect is that the work of attaching and detaching the printing plate can be easily performed.

According to a fourth aspect of the present invention, in the rotary stamp apparatus according to any one of the first to third aspects, the foot portion of the support is provided with an inner surface of an outer peripheral plate of the roller body. Since a guide piece for contacting and guiding is formed,
When the open end of the outer peripheral plate comes close to the surface of the recording medium at the time of imprinting, it is possible to reliably prevent the open end from bending in the inner diameter direction of the roller body, and the end of the printing plate comes off accidentally at the time of imprinting. This has the remarkable effect of preventing the problem.

[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 perspective view of a support member in the first embodiment of the rotary stamp device.

FIG. 7 is a perspective view of a support member in the second embodiment of the rotary stamp device.

8 is an enlarged cross-sectional view taken along the line VIII-VIII of FIG.

FIG. 9 is a perspective view of a roller body in the first embodiment of the rotary stamp device.

10A is a side view showing a state where one end of a printing plate is mounted on a roller body, and FIG. 10B is a side view showing a state where the other end of the printing plate is mounted on a roller body.

FIG. 11 is a side view showing a state where a printing plate is mounted on the roller body.

FIG. 12 is a partially cutaway front view showing a modified example of the rotary stamp device.

13 is a side view taken along line XIII-XIII of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printing plate 2 Printing surface part 10 Plate-making completed printing plate 12 Roller body 13 Support tool 13a Handle part 14,14 Foot part 15 Support shaft 16 Locking hole 17 Recessed groove 23 Outer peripheral plate 23a, 23b Open end part 24 Boss part 25 Connecting rib 26 rib 27 sandwiching piece 28 guiding piece

Claims (4)

[Claims] 1. A flexible printing plate capable of forming an ink impermeable melt-solidified portion and an ink permeable non-melting portion on a printing surface portion of a foamed plastic substrate having open cells, and a printing plate of the printing plate. A rotatable roller body for supporting the back surface side, and a support tool for rotatably supporting the roller body, and forming a pair of open end portions separated from one location of the outer peripheral plate of the roller body, A rib protruding radially outward from the inner diameter side of the roller body is provided between the pair of open ends, and the end of the printing plate is provided at the tip of the rib between the pair of open ends. A rotary stamp device, which is integrally provided with a sandwiching piece for sandwiching. 2. A protrusion for pressing an end of a printing plate is formed on at least one of the outer surface of the pair of open ends or the inner surface of the sandwiching piece. Rotary stamp device. 3. The rotary stamp according to claim 1, wherein the pair of open ends are made of a material that easily bends inwardly of the roller body when pressure is applied from the outside. apparatus. 4. The guide piece for contacting and guiding the inner surface of the outer peripheral plate of the roller body is formed on the foot portion of the support tool. The rotary stamp device described.