JPH09309256A - Rotary stamping device - Google Patents

Abstract

(57) An object of the present invention is to facilitate replacement work of a printing plate 1 (plate-making completed printing plate 10) with respect to a roller body 12 in a rotary stamping device, and improve mounting strength. SOLUTION: One part of an outer peripheral plate 23 of a roller body 12 is separated to form a pair of open ends 23a, 23b, and both ends of a printing plate 1 are inserted between the pair of open ends 23a, 23b. Then, the rib portions 26b of the wedge body 26 are inserted between the both ends of the printing plate 1 so that the printing plate 1 is prevented from being displaced and dropped from the roller body 12 by exerting a wedge action. Left and right support shafts 15
Is rotatably attached to the support.

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 rotatable roller body for supporting the back side of a flexible printing plate capable of forming a permeable non-melting portion, a support tool for rotatably supporting the roller body, and a wedge body. And a pair of open ends are formed by separating one part of the outer peripheral plate of the roller body, and the ends of the printing plate inserted between the pair of open ends are sandwiched by the wedge body. It is composed.

Further, the invention according to claim 2 is a flexible structure capable of forming an ink impermeable melt-solidifying part and an ink permeable non-melting part on the printing surface part of the foamed plastic substrate having open cells. A rotatable roller body for supporting the back side of the printing plate, a support tool for rotatably supporting the roller body, and a wedge body. Forming the open end of
The roller body is provided with a pair of elastic holding ribs extending outward in the radial direction between the pair of open ends and capable of inserting the ends of the printing plate between the pair of open ends. The elastic sandwiching ribs are inserted so that the wedge-shaped body pushes the space between the back surfaces of the ribs.

According to a third aspect of the present invention, in the rotary stamp apparatus according to the first or second aspect, connecting pieces are provided at both ends of the wedge body, and the connecting pieces are provided on both left and right sides of the roller body. It is mounted so as to be movable in the radial direction on the surface.

[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. 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 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 10 show a first embodiment of a stamping 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.

A 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 spaced from the pair of open ends 23a and 23b at appropriate central angles (approximately 90 degrees in the embodiment).
Are connected to the inner surface of the joint by connecting ribs 25, 25, 25.

The wedge body 26, which is also made of synthetic resin and has a substantially T-shaped cross section, has a pair of open ends 23a, 23.
The pressing piece 26a facing the outer peripheral surface of b and the both open end portions 2
3a and 23b, and a rib portion 26b protruding radially inward toward the gap, and the length of the pressing piece 26a is set to be substantially equal to the width dimension of the outer peripheral plate 23. The pair of open ends 23a and 23b are inclined so that their free ends are inward of the roller body 12.

With this structure, when the printing plate 1 (or the plate-made printing plate 10, hereinafter the same) is wound and mounted on the roller body 12, as shown in FIG. Insert one end of the printing plate 1 into the gap between the portions 23a and 23b, and then wind the back surface of the printing plate 1 along the outer peripheral surface of the outer peripheral plate 23, as shown in FIG. 10 (b). Further, while pressing the other open end portion 23b so as to bend inward in the radial direction against the elastic force of the outer peripheral plate 23 itself, the printing plate 1
The other end of the is inserted into the gap.

Next, in the gap between both ends of the printing plate 1,
The rib portion 26b of the wedge body 26 is pushed in from the outside of the radius of the roller body 12 (see FIG. 10C). In this way, the printing plate 1 can be mounted on the outer peripheral surface of the roller body 12 very easily. Then, the rib portion 2 in the wedge body 26
6b has a wedge effect of pressing the bent portions of both end portions of the printing plate 1 against the elastic edges of the open end portions 23a and 23b themselves on both longitudinal side surfaces of 6b, and at the same time, the lower surface of the pressing piece 26a is Both end portions of the printing plate 1 are connected to both open end portions 23a, 2a.
The printing plate 1 is a roller body 1 because it is sandwiched between the rollers 3b.
It is tightly wrapped around the outer circumference of 2 so that it does not fall off accidentally or become misaligned.

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. In order to remove the printing plate 1 from the roller body 12, simply removing the wedge body 26 in the radial outward direction of the roller body 12, the pressing force against the open ends 23a and 23b of the outer peripheral plate 23 at the end of the printing plate 1 is applied. Is opened, and the end of the printing plate 1 can be easily removed.

11 to 13 show the second embodiment, in which one portion of the outer peripheral plate 23 of the roller body 12 is separated to form a pair of open end portions 23a and 23b, and the roller body 12 has a boss portion 24. From the pair of open ends 23a, 23b
A pair of elastic sandwiching ribs 27a and 27b extending outward in the radial direction toward the gap between them are provided. Then, one end of the printing plate 1 wound along the outer peripheral surface of the outer peripheral plate 23 is provided with the one open end 23a and the elastic holding rib 27a.
The other end of the printing plate 1 is inserted into the gap between the other open end 23b and the elastic holding rib 27b. After that, the wedge body 28 having a substantially T-shaped cross section
The rib portion 28b of the elastic sandwiching rib 27
Push it into the gap between the back surfaces of a and 27b.

As a result, the pair of elastic holding ribs 27a,
Since the wedge body 28 pushes the space between the back surfaces of 27b, each end of the printing plate 1 has a pair of elastic holding ribs 27.
It is firmly sandwiched between a and 27b and the pair of open end portions 23a and 23b, and cannot be removed (see FIG. 13). In this embodiment, as shown in FIGS. 11 and 12,
A pair of connecting pieces 29 connected to both longitudinal ends of the wedge body 28,
The long holes 30 and 30 formed in 29 are fitted into the support shafts 15 and 15 on the left and right sides of the roller body 12 to form the wedge body 28.
Is configured to be movable at least in the radial direction of the roller 12, so that the wedge body 28 does not come off from the roller body 12 when the printing plate 1 is attached or detached.

Further, connecting pieces (not shown) are integrally provided at both ends of the wedge body 26 shown in FIG. 9 in the longitudinal direction, and elongated holes formed in each connecting piece are formed on both left and right sides of the roller body 12. The wedge body 26 may be fitted in the support shafts 15 and 15 so as to be movable at least in the radial direction of the roller 12. As shown in FIG. 11, if the edge ribs 31, 31 are formed on the circumferential surfaces on both the left and right sides of the outer peripheral plate 23, the long side edge surfaces of the printing plate 1 along the outer peripheral plate 23 are the left and right sides. It can be restrained by the edge ribs 31 and 31 so as not to shift.

Further, the elastic holding ribs 27a, 27b or the open ends 23a, 23b of the outer peripheral plate 23 have projections 32,
By providing 32, 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 12 and the support 1
3 may be formed of a synthetic resin material.

In each of the above-described embodiments, if the plate 1 is mounted on the roller body 12 of the rotary stamping device having the above-mentioned structure and is fixed to a predetermined position of the plate making device 60 to carry out the above plate making work, the carriage 63 is obtained. Since the printing plate 1 rolls together with the roller body 12 as the roller body 12 moves, 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.

Further, the completed plate-making stamp 10 is pressed against an ink storage pad (not shown) while being mounted on the rotary stamp device, or from the image part 6 which is a non-melting part capable of penetrating ink. 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 printing plate 10 can be easily removed from the roller body 12, the plate-made printing plate 10 on which a new or another arbitrary stamp is formed is mounted on the roller body 12 to make an imprint. It is extremely easy to do. Further, it is also possible to remove the plate-making printing plate 10 mounted on the flat plate-shaped rooting device 8 to make the plate and mount it on the roller body 12.

[0030]

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 rotatable roller body for supporting the back side of a flexible printing plate capable of forming a fusion zone; and a support tool for rotatably supporting the roller body,
A wedge body, and a pair of open ends are formed by separating one part of the outer peripheral plate of the roller body, and the edges of the printing plate inserted between the pair of open ends are sandwiched by the wedge body. It is configured to do.

Therefore, since the wedge body is further removably inserted in a state where the opposite end portions of the printing plate wound around the outer peripheral plate of the roller body are inserted into the gap between the pair of open end portions, the rotary stamp can be inserted. Attaching and detaching the printing plate to and from the device,
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 due to the wedge action of the wedge 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.

Further, in the rotary stamp device according to the second aspect of the present invention, an ink impermeable melt-solidifying part and an ink permeable non-melting part are formed on the stamped surface part of the foamed plastic substrate having open cells. One of the outer peripheral plates of the roller body is composed of a rotatable roller body for supporting the back side of a flexible printing plate that can be formed, a support tool for rotatably supporting the roller body, and a wedge body. The pair of open ends are formed by separating the portions, and the roller body extends radially outward toward the space between the pair of open ends and has the end of the printing plate between the open ends. A pair of elastic sandwiching ribs that can be inserted are provided, and the wedge body pushes the space between the back surfaces of the pair of elastic sandwiching ribs.

According to this structure, it is possible to insert the printing plate, which is wound around the outer peripheral surface of the outer peripheral plate of the roller body, into the open end and the elastic sandwiching rib for each end, thereby further facilitating the work of mounting the printing plate. In addition, by inserting the pair of elastic sandwiching ribs so that the back surfaces of the elastic sandwiching ribs are pushed apart by the wedge body, the sandwiching strength of both ends of the printing plate with respect to the roller body is improved, and therefore the printing plate is soft or flexible. Even if the printing plate is easy to use and the printing plate has a small thickness, it is possible to prevent the printing plate from shifting 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, connecting pieces are provided at both ends of the wedge body, and the connecting pieces are provided on both left and right sides of the roller body. Since it is mounted so as to be movable in the radial direction on the surface, there is no risk of the wedge body being lost when the wedge body is separated from the roller body. Further, when the wedge body is inserted between the pair of open ends or between the back surfaces of the pair of elastic holding ribs, it is easy to move the wedge body substantially parallel to the width direction of the outer peripheral plate, so that the work of mounting the printing plate on the roller body is further facilitated. The effect that it becomes easy is produced.

[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 and a wedge 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 the roller body and then a wedge body is mounted. , (C) are side views of a state in which the printing plate is completely attached to the roller body.

FIG. 11 is a partially cutaway side view of the roller body and the wedge body in the second embodiment of the rotary stamp device.

FIG. 12 is a side view showing a state where a printing plate is attached to the roller body.

FIG. 13 is a partially cutaway side view showing an inserted state of the wedge body with respect to the roller body.

[Explanation of Codes] 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 Spindle 16 Locking hole 23 Outer peripheral plate 23a, 23b Open end part 24 Boss part 25 Connecting ribs 26, 28 Wedge bodies 26b, 28b Rib portions 27a, 27b Elastic holding ribs 29 Connecting pieces

Claims (3)

[Claims] 1. A back side of 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. A rotatable roller body, a support tool for rotatably supporting the roller body, and a wedge body, and a pair of open ends are formed by cutting one part of the outer peripheral plate of the roller body, A rotary stamping device, wherein an end portion of a printing plate inserted between a pair of open end portions is sandwiched by the wedge members. 2. A back surface side of 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. A rotatable roller body, a support tool that rotatably supports the roller body, and a wedge body, and a pair of open end portions are formed by separating one location of the outer peripheral plate of the roller body, The body is provided with a pair of elastic holding ribs extending outward in the radial direction between the pair of open ends and capable of inserting the ends of the printing plate between the open ends. A rotary stamp device, wherein the wedge-shaped body is inserted so as to push the elastic sandwiching ribs between the back surfaces thereof. 3. The connecting piece is provided at both ends of the wedge body, and the connecting piece is mounted so as to be movable in the radial direction on both left and right side surfaces of the roller body.
The rotary stamp device described in.