JPH1086497A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a printer which can stamp the opposite sides of a postcard simultaneously. SOLUTION: A first roller 41 is supported rotatably between a pair of side frame parts 40b of a print base 40 having upward U-shaped cross-section and a second roller 42 is supported thereunder movably up and down with respect to the center of rotation of a supporting shaft 42a such that it can touch the outer circumferential surface of the first roller 41 and can separate therefrom. The first and second rollers 41, 42 are turned synchronously by the rotating force of a drive motor 43. An elevating/lowering cam 66 in a touching/separating mechanism 61 being operated with the rotating force of the drive motor 43 forcibly moves the rollers 41, 42 such that the outer circumferential surfaces of both rollers 41, 42 approach each other after a phase where the starting ends 34a of plate sheets 34 fixed thereto face each other and both rollers 41, 42 are separated after a phase where the rear end parts of the plate sheet 34 face each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a cell having an open cell,
Using a printing plate sheet in which an ink exuding portion for a desired image portion and an ink non-exuding portion for a non-image portion are formed on the surface of a porous sheet of a foamed resin which can be impregnated with stamp ink, such as a postcard or the like ( The present invention relates to a printing apparatus for performing stamp printing on a printing medium.

[0002]

2. Description of the Related Art Conventionally, a picture,
In order to print a desired image portion such as a character, for example, in Japanese Utility Model Publication No. Sho 62-22381, a mirror image of a predetermined image portion is engraved on an endless rubber plate or the like, and a roller image is formed on the peripheral surface of the roller body. Affix, rotatably support this roller body on the handle,
An apparatus for performing stamp printing by rolling and moving a roller body along the surface of a printing medium is disclosed.

On the other hand, as disclosed in Japanese Patent Application Laid-Open No. 7-251558, a printing plate sheet made of a porous sheet of a foamed resin having open cells and impregnable with a stamp ink, has a stamp on its surface. Since it is extremely easy to form a mirror image of a predetermined character or pattern on the surface, the applicant has taken advantage of this advantage by first applying the printing plate sheet in Japanese Patent Application No. 8-119671. The present invention proposes an apparatus which is detachably mounted on a peripheral surface of a roller body, and rolls and moves along the surface of a print-receiving medium in a state where the roller body is mounted on a handle to perform stamp printing.

[0004]

However, in the printing system in which the roller body having the printing plate sheet mounted on the outer peripheral surface is rolled and moved along the surface of the print-receiving medium as described above,
In order to print on both sides of a print-receiving medium, printing must first be performed on one side, and then a printing plate with a different image area applied to a roller body must be attached. However, there is a problem that it takes time to print a large number of sheets.

In addition, when the roller body with the handle is rolled along the surface of the print-receiving medium, the direction of movement tends to be shifted with respect to the edge of the print-receiving medium. In order to print the same image area neatly on a medium, there has been a problem that considerable labor and attention are required. The present invention has been made to solve these problems, and it is an object of the present invention to provide a printing apparatus in which a large number of printing operations can be easily performed and a beautiful printing result can be obtained. It is.

[0006]

According to a first aspect of the present invention, there is provided a printing apparatus, comprising: a porous sheet having continuous cells and impregnated with ink; A pair of roller members for winding and mounting a printing plate sheet having a corresponding ink exuding portion and an ink non-exuding portion corresponding to a portion other than the image portion along the outer peripheral surface; A printing table for rotatably supporting the roller body, and a synchronous transmission mechanism for rotating and driving the two roller bodies in synchronization with each other, wherein the pair of roller bodies are provided on at least one of the roller bodies on the outer peripheral surface of the other roller body. It is provided so that it can be relatively close to and separated from
After the phase in which the starting ends of the printing plate sheets respectively mounted on the outer peripheral surfaces of both roller bodies face each other, the outer peripheral surfaces of both roller bodies approach each other, and after the phase in which the rear ends of the printing plate sheets face each other, the two roller bodies are brought together. It has a configuration having a contact / separation mechanism for forcibly moving it away.

According to a second aspect of the present invention, in the printing apparatus according to the first aspect, the printing plate is mounted on the outer peripheral surface of each of the two roller bodies toward a position where a starting end of the printing plate sheet faces each other. The apparatus has a paper feed mechanism for feeding a print medium. Further, the invention described in claim 3 is the invention according to claim 1.
Alternatively, in the printing apparatus according to the second aspect, the contact / separation mechanism and the sheet feeding mechanism operate in synchronization with each other.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described. 1 is a schematic side sectional view of the stamp unit with the movable lid open, FIG. 2 is a schematic side sectional view of the stamp unit with the movable lid closed, and FIG. 4 is a schematic side view of the printing apparatus. 1 and 2, the stamp unit basically includes a plate making section 2 on the upper side of the apparatus main body 1 and a printing section 3 on the lower side of the apparatus main body 1. The plate making section 2 and the printing section 3 can be separated. Is configured. That is, the upper and lower sides of the bottomed case 7 of the printing unit 3 are engaged with and disengaged from the upper edge of the side of the bottomed case 7 of the printing unit 3 by the lock claws 5 with biasing springs 6 provided on the lower sides of the case 4 of the plate making unit 2. The case 4 is stacked on the
Can be separated from the bottomed case 7 to take out the articles in the bottomed case 7 and to perform a printing operation as described later.

First, the configuration of the plate making section 2 will be described. A substantially rectangular recess 13 in plan view is formed on the upper part of the case 4 via a stepped portion 12 having four circumferences in plan view, with four side walls 13b and a bottom wall 13a. The bottom wall 13a is provided with a socket hole 14 to which a flash valve 15 as a light irradiation unit can be detachably attached, and a contact member 16 is arranged on the lower surface side of the socket hole 14. A sheet (not shown) having excellent light reflection characteristics, such as aluminum foil, is adhered to the surface of the recess 13. A transparent plate 17 such as a transparent acrylic plate or the like as a plate making unit support for overlappingly supporting a stamp substrate 21 and a light-transmissive original sheet 26 is detachably mounted on the step portion 12. Have been.

On the left and right sides of the upper part of the case 4, an outer lid 8, an intermediate lid 9, and an inner lid 10, which are movable lids, are pivotally connected to pins 18,1.
It is pivotally attached to open and close freely via 9, 20 respectively.
On the lower surface of the inner lid 10, a stamp substrate 21 made of a porous sheet having open cells and impregnable with stamp ink is provided.
Further, a flat pressing member 27 such as a sponge or rubber for pressing the transparent sheet 17 with an even pressure on the transparent plate 17 with the light transmissive original sheet 26 overlaid thereon is adhered. On the lower surface side when the intermediate lid 9 is disposed on the upper surface of the inner lid 10, a pressing bulging portion 28 for uniformly pressing the upper surface of the inner lid 10 at a plurality of places.
Are integrally formed.

A handle 29 is provided on the outer surface of the outer lid 8, and a hook portion 31 for engaging and disengaging with a hole-shaped engaging portion 30 of the case 4 is provided on a free end side of the outer surface of the outer lid 8. Are mounted so as to urge in the engagement direction via a torsion spring 32. Further, when the outer lid 8 is overlaid on the upper surface of the intermediate lid 9, at least two pressing bulges 33 are formed for pressing the intermediate lid 9 almost uniformly.

The engaging portion 30 is provided with a switch portion (not shown), a new flash valve 15 is mounted in the socket hole portion 14, the transparent plate 17 is fitted into the step portion 12, and the transparent plate 17 is inserted. Transparent original sheet 26 on top
And a stamping substrate 21 thereon, and then the inner lid 1
0, the intermediate cover 9 and the outer cover 8 are sequentially stacked, and when the worker applies a predetermined pressing force to engage the hook portion 31 with the engaging portion 30, the switch portion is turned on, and an electric circuit (not shown) is turned on. The flash valve 15 can be made to flash through.

The light irradiating section may be configured to emit a flash lamp such as a xenon lamp or a strobe lamp instead of the flash bulb 15.
Further, since the electric circuit is wired on the back surface side of the recess 13, the worker does not receive an electric shock. When using the stamp substrate 21 in which an ink-impermeable coating is previously formed on the surface of the porous sheet, a light-transmitting original sheet 2 such as PPC paper (tracing original paper) is used.
6, a black image portion is drawn with carbon black, black ink, a water-based marker, etc., and the original sheet 26 is placed on the transparent plate 17 with the image portion facing up. The stamp substrate 21 is placed one on top of the other with the permeable coating facing downward.
The flash valve 15 is flashed by being pressed by the intermediate lid 9 and the outer lid 8, and light including infrared rays is irradiated from the transparent plate 17 side.

In this case, the black image portion is heated (heat stored) by the thermal energy of the irradiated light, and the ink impermeable film in a portion which is in close contact with the image portion is applied to the black image portion. Welded to the image area. So, manuscript sheet 2
When the stamp 6 and the stamping substrate 21 are peeled off, the ink impermeable coating adheres only to the surface portion of the image portion, and is peeled off from the surface of the stamping substrate 21 to have the same shape as the image portion. The ink impermeable coating is perforated, and the portion becomes an ink exuding portion, and the ink transmitting portion is formed according to the mirror image shape of the image portion, and plate making can be performed.

Therefore, as shown in FIG. 3, on one side (printing surface) of the printing plate 34 having been made, an ink bleeding portion 35 according to the mirror image shape of the image portion and an ink bleeding portion 35 other than the image portion are formed. The oozing portion 36 is formed. Next, the configuration of the printing unit 3 as a printing device will be described with reference to FIGS. As shown in FIG. 4 and FIG.
a and the upper and lower left and right frame portions 40b, 40b, and the upper and lower right and left side frame portions 40 having a U-shaped cross section.
The printing apparatus of the present invention, which comprises a pair of upper and lower roller bodies 41 and 42 rotatably mounted between b and 40b, is fixedly or detachably provided to the bottomed case 7.

The support shaft 41a of the first roller body 41, such as a hollow cylinder, positioned on the upper side is provided with the side frame portions 40b,
The shaft 40b is rotatably and fixedly supported at a fixed position. Further, a driving motor 43 as a driving means to be described later is mounted on one of the side frame portions 40b.
Bearing portions 45, 45 which are open in a substantially arc shape in a side view around the shaft 51 of the third pinion 44 are provided on the inner surface sides of the left and right frame portions 40b, 40b.

Then, both ends of the support shaft 42a of the lower second roller body 42 are vertically movably fitted into the bearings 45, 45. The left and right frame portions 4
As shown in FIGS. 4 and 5, a mounting table for feeding a postcard 46 as an example of a print-receiving medium between the pair of upper and lower rollers 41, 42 between the inner surfaces of the rollers 0b, 40b. 47 is vertically movably mounted via a guide pin 48 and a vertically long guide hole 49.

FIG. 6 and FIG. 7 show that the rotational force from the drive motor 43 is synchronously transmitted to the two roller members 41 and 42, and the two roller members 41 and 42 are synchronized at the same peripheral speed. A synchronous transmission mechanism 50 for rotating and driving the motor, and a large-diameter fixed to one side of the first roller body 41 via transmission gears 53, 54, 55 from the other pinion 52 fixed to the shaft 51. While power is transmitted to the gear 56, one end of the support shaft 42a of the second roller body 42 is rotatably supported at the distal end of the arm 57 whose base is rotatably fitted to the shaft 51. On the other hand, a large-diameter gear 6 fixed to one side of the second roller body 42 via transmission gears 58 and 59 transmitted from the pinion 52 to the arm 57 is provided.
0 is transmitted. Accordingly, in FIG. 6, when the pinion 52 rotates clockwise, the transmission gears 53, 54, 55 rotate in the direction of the arrow so that the large-diameter gear 56 of the first roller body 41 rotates clockwise, At the same time, the transmission gears 58, 59 rotate in the direction of the arrow so that the large-diameter gear 60 of the second roller body 42 rotates counterclockwise.

The rotational force of the drive motor 43 is controlled by a contact / separation mechanism 61 disposed on the inner surface of one side frame portion 40b.
To transmit power. The contact / separation mechanism 61 is connected to the pinion 4
4 through a transmission gear 62, 63, 64 to a final gear 65.
To communicate. An elevating cam 66 provided coaxially with the final gear 65 abuts on a driven cylindrical portion 67 provided on the other side of the second roller body 42. The lower surface of the mounting table 47 is supported by two eccentric cams 69 fixed to both sides of a shaft 68 that rotates integrally with the transmission gear 63. A paper feed roller 70 is fixed to a shaft 51 to which the pinions 44 and 52 are attached, and a postcard 46 as a print medium on a mounting table 47 at an ascending position is fixed to upper and lower roller bodies 41 and 4.
It is configured so that paper can be fed between the two. The second roller 42 is connected to both ends of the support shaft 42 a and the side frame portion 4.
The second roller body 42 is elastically urged in a direction away from the lower surface of the first roller body 41 by a tension spring 71 as an urging means mounted on the first roller body 41.

Next, the operation of the printing apparatus having the above-described configuration will be described. The ink of a predetermined color is sucked into the image portion of each printing plate sheet 34, and the ink adhering to the non-leached portion is wiped off. Each printing plate sheet 34 is stretched on the outer peripheral surfaces of the roller bodies 41 and 42 to be formed via a double-sided adhesive tape. At the printing operation start position, as shown in FIG. 4, the eccentric cam 69 of the contact / separation mechanism 61 sets the mounting table 47 to the raised position. When the drive motor 43 starts rotating in a predetermined direction, the loading table 4 is rotated by the rotating paper feed roller 70.
7 is a first roller 41 and a second roller body 42
Paper is fed between In this case, due to the synchronous transmission mechanism 50, the two roller bodies 41, 42 are synchronized in the direction in which the leading ends 34a, 34a of the printing plate sheets 34, 34 attached to the outer peripheral surfaces thereof with double-sided adhesive tape or the like approach each other. And rotate.

Next, the printing plate sheets 34,
The starting end portion of the postcard 46 fed immediately before the starting end portions 34a, 34a are closest to each other is the upper and lower first roller bodies 41.
When moved between the second roller body 42 and the second roller body 42, the larger radius side of the elevating cam 66 comes into contact with the circumferential surface of the driven cylindrical portion 67. In this state, according to the turning radius of the arm 57,
The second roller body 42 resists the elastic force of the tension spring 71.
Is pushed up to the lower surface side of the first roller body 41. Further, according to the synchronous transmission mechanism 50, the second roller body 42 ascending
The transmission of rotational force to the motor is not interrupted.

Thus, as shown in FIG.
The upper and lower surfaces are pressed by the printing plate sheets 34, 34 and can be simultaneously stamped and printed on both surfaces of the postcard 46 without slipping by the rollers 41, 42 rotating in synchronization with each other. As can be understood from FIG. 5, the starting end portion of the postcard 46 is formed by the upper and lower roller bodies 41 and 4.
2, the eccentric cam 69 rotates to the position where the mounting table 47 is lowered, so that the gap between the paper feeding roller 70 and the upper surface of the mounting table 47 is widened, and the forced paper feeding action of the postcard 46 is performed. Is gone.

Further, when the two roller bodies 41 and 42 rotate and the rear ends of the upper and lower printing plates 34 and 34 rotate in the direction of moving away from the closest state to the direction away from each other, the radius of the lift cam 66 is reduced. The smaller side comes into contact with the circumferential surface of the driven cylindrical portion 67, and at this time, the second roller body 42 is forcibly moved downward (away from the first roller body 41) by the urging force of the tension spring 71.

The means for attaching the printing plate sheet 34 to the outer peripheral surface of each of the roller bodies 41 and 42 may use other clip means other than the double-sided adhesive tape. In the above-described embodiment, the second roller body 42 at the lower position is configured to move up and down with respect to the first roller body 41 at the fixed position so as to be in contact with or separated from the first roller body 41 at the fixed position. May be fixed in position, and the upper first roller body 41 may be moved up and down and separated. Further, the first roller body 41 and the second roller body 4
2 may be arranged at substantially the same height position so that the passage path of the print-receiving medium is in the vertical direction.

The drive source may be a handle that is manually turned by an operator instead of the drive motor 43. As a modified example of the mounting table 47, the mounting table 47 is formed in a box shape having an open upper surface, in which a large number of postcards 46 can be housed, and the inside of the mounting table 47 is always pushed upward through a spring via a spring. A well-known configuration in which a mounting plate is provided may be used. By the action of the spring, the uppermost postcard 46 of the postcards 46 stacked on the mounting plate comes into contact with the paper feed roller 70 when the mounting table 47 is located at the rising position shown in FIG. When the mounting table 47 is located at the lowered position shown in FIG. With this configuration, printing on a large number of postcards 46 can be performed more easily.

[0026]

As described above, in the printing apparatus according to the first aspect of the present invention, ink bleeding corresponding to the image area is formed on the surface of the porous sheet having open cells and impregnable with ink. And a pair of roller bodies for mounting along the outer peripheral surface a printing plate sheet on which a non-ink bleeding part corresponding to a part other than the image part is formed, and both the roller bodies are rotatably supported. And a synchronous transmission mechanism for rotating the two roller bodies in synchronization with each other, wherein the pair of roller bodies are brought into contact with at least one of the roller bodies relative to the outer peripheral surface of the other roller body. After the phase in which the starting ends of the printing plate sheets respectively mounted on the outer peripheral surfaces of the two roller bodies face each other, after the phase in which the outer peripheral surfaces of both roller bodies approach and the rear ends of the printing plate sheets face each other. Is a contact / separation mechanism that forcibly moves both roller bodies apart. It is obtained by a configuration having.

Accordingly, the two roller bodies, each having the printing plate wound around the outer peripheral surface thereof, are synchronously rotated on a printing table via a synchronous transmission mechanism, and are rotationally driven. Thus, it is possible to easily execute printing of a large number of sheets so that a predetermined image portion is simultaneously formed. Then, by the contact / separation mechanism, the pair of roller bodies are
After the leading ends of the printing plate sheets attached to the outer peripheral surface are close to each other, the interval between the two roller bodies is reduced, and conversely, after the rear ends of the printing plate sheets are separated, the two roller bodies are separated from each other. Since the distance fluctuates so as to increase the interval, the printing surfaces of the printing plate sheets do not directly contact each other. Therefore, even if the image portions of the printing plate sheet are impregnated with inks of different colors, the ink can be mixed with each other and an inconvenience of forming an image portion of an undesired color can be avoided.

The invention described in claim 2 is the same as the invention described in claim 1.
The printing apparatus according to any one of claims 1 to 3, further comprising a paper feed mechanism that feeds a printing medium toward a position where a starting end of the printing plate sheet attached to the outer peripheral surface of each of the two roller bodies faces. By providing such a paper feeding mechanism, there is an effect that it becomes easier to feed a thin print medium than by hand.

Further, according to a third aspect of the present invention, in the printing apparatus according to the first or second aspect, the contact / separation mechanism and the sheet feeding mechanism operate in synchronization. Therefore, the paper feed timing is automated, so that the work of feeding a large number of print-receiving media is further facilitated, and there is an effect that there is no displacement of a printing position on the print-receiving medium.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view of a stamp unit with a movable lid opened.

FIG. 2 is a schematic side sectional view showing the stamp unit with a movable lid closed.

FIG. 3 is a perspective view of a printing plate sheet.

FIG. 4 is a side sectional view of the printing apparatus at the start of a printing operation.

FIG. 5 is a side sectional view of the printing apparatus during a printing operation.

FIG. 6 is another side view of the printing apparatus.

FIG. 7 is a sectional view taken along line VII-VII of FIG. 4;

[Explanation of symbols]

 34 printing plate 40 printing stand 41 first roller body 42 second roller body 45 bearing unit 47 mounting table 50 synchronization transmission mechanism 57 arm 61 contact / separation mechanism 66 elevating cam 69 eccentric cam

Claims (3)

[Claims] An ink exuding portion corresponding to an image portion and an ink non-exuding portion corresponding to a portion other than the image portion are formed on a surface of a porous sheet having open cells and impregnable with ink. A pair of rollers for winding and mounting the engraved printing sheet along the outer peripheral surface, a printing table for rotatably supporting the two rollers, and a synchronous drive for rotating the rollers in synchronization. A transmission mechanism, wherein the pair of roller bodies are provided so that at least one of the roller bodies can be relatively moved toward and away from the outer peripheral surface of the other roller body, and the marks attached to the outer peripheral surfaces of both roller bodies, respectively. Having a contact / separation mechanism that forcibly moves so that the outer peripheral surfaces of both roller bodies approach after the phase where the start end of the plate sheet faces, and the two roller bodies separate after the phase where the rear end of the printing plate sheet faces. A printing device characterized by the above-mentioned. 2. A paper feeding mechanism for feeding a printing medium toward a position where a starting end of a printing plate sheet mounted on the outer peripheral surface of each of the two roller bodies faces. The printing device according to claim 1. 3. The printing apparatus according to claim 1, wherein the contact / separation mechanism and the sheet feeding mechanism operate in synchronization.