JPH0852850A - Stamping device - Google Patents

Abstract

PURPOSE:To prevent the defective punching from being carried out even if contact between a thermal head and a printing surface part are deviated by increasing punching energy for specified parts of both ends of the printing surface part during punching operation by the specified amount than punching energy for the part between the specified parts of both ends. CONSTITUTION:To increase punching energy for specified parts of both ends of a printing surface part by a specified amount than punching energy for the parts between the specified parts of both ends, for example, the increase can be performed by controlling an applied voltage on a thermal head or by controlling the time applied on the thermal head. Furthermore, the part of a heat-sensitive printing-plate base paper 28 in tight contact with the surface of an impregnated body 27 constitutes a printing surface part 33. Since the constitution, wherein the outer surface part of the heat-sensitive printing-plate base paper 28 is in contact with the outer surface of a base member 26, is adopted, the printing surface part 33 can be formed over the almost entire region of the lower surface of a stampling part. As a result, positioning in printing is simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp device,
In particular, the present invention relates to a stamp device including a stamp body in which a surface of an ink body is covered with a heat-sensitive stencil sheet to form a stamp surface portion, and a heating punching device which punches the stamp surface portion of the stamp body in a dot shape.

[0002]

2. Description of the Related Art Heretofore, various stamps have been used for printing a company name / address and other various character strings on the surface of a paper, the stamp surface of which is made of rubber. Stamps of this type are expensive and take a long time from order to acquisition because they are usually made individually according to orders.

On the other hand, it is possible to perforate a desired dot pattern by irradiating infrared rays or a thermal head, and by transmitting ink from the perforation group, it is possible to use it for printing various patterns such as character strings, figures and marks. Those using stencil base paper have been put to practical use.

The applicant of the present application, as disclosed in Japanese Utility Model Laid-Open No. 5-74833, is a stencil printing plate mainly composed of the heat-sensitive stencil sheet and an impregnated body impregnated with ink. We have proposed a stencil printing plate suitable for making a stamp that replaces the stamp having a rubber surface. This stencil printing plate is made by bonding an impregnated body impregnated with ink and a frame surrounding the impregnated body to a synthetic resin film to form a heat-sensitive stencil sheet on the surface of the impregnated body and the frame. It is a bonded structure.

When the stencil printing plate is applied to a stamp, the stencil printing plate is adhered to the lower surface of the base of the stamp member having a grip portion through a cushion material, and the heat-sensitive stencil sheet is provided with a thermal head or the like. By punching a pattern of a desired character string or the like with a stamp made of a stamp member and a master plate for stencil printing, the pattern of the desired character string or the like is printed on a paper a number of times like a normal stamp. You get a stamp that you can do.

[0006] The applicant of the present invention has also filed Japanese Patent Application Laid-Open No. 4-2267.
As disclosed in Japanese Patent No. 78, a stamping device including a stamping body and a heating punching device that forms a punching hole in the stamping surface portion of the stamping body has been proposed. The stamp body is provided on the grip portion, the main body case, and the main body case, and is provided on the supply reel and the take-up reel for supplying and winding the tape-shaped heat-sensitive stencil sheet, and the punched heat-sensitive stencil sheet. An ink pad or the like for supplying ink. Further, the heat punching device, a punching mounting portion for detachably mounting the stamp body, a feeding mechanism for feeding the heat-sensitive stencil sheet of the stamp body,
A thermal head that forms perforations in the heat-sensitive stencil sheet of the stamp body, and a keyboard for entering characters and symbols,
It is composed of a feeding mechanism and a control device for controlling the thermal head so that the character string input based on the input data is punched in the heat-sensitive stencil sheet.

According to this stamping device, the stamp body is provided with a tape-shaped heat-sensitive stencil sheet, and a pattern of a desired character string can be punched on the stamp face portion of the stamp body by the heating punching device. Therefore, a different pattern can be punched in the stamp face portion, and since the ink is automatically supplied from the ink pad inside the stamp body to the stamp face portion during printing, external ink is applied to the stamp face portion. You can print without.

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the stamp body of the stamp device of Japanese Patent No. 778,
A long tape-shaped stencil stencil sheet is provided, but since only a very small part of the stencil stencil sheet is normally used, the heat-sensitive stencil stencil sheet is wasted. Further, since the tape-shaped long heat-sensitive stencil sheet, the supply reel, the take-up reel and the like are provided inside the stamp body, the stamp body becomes large and difficult to use, and the manufacturing cost becomes expensive. Furthermore, since the ink pad is brought into contact with the tape-shaped heat-sensitive stencil sheet, it is difficult to seal the ink so that the ink does not leak from the ink pad, and the ink leaks easily.

Therefore, the applicant of the present application filed Japanese Patent Application No. 5-329.
In No. 657, a stamping device was proposed, which comprises a stamping device that can be made smaller, lighter and less expensive, can prevent ink from leaking, and a heating punching device that can punch a stamping surface of this stamping device. .

The stencil printing master plate of the stamp body in this stamping device includes the ink body and the heat-sensitive stencil base paper that fixedly covers the surface of the ink body and constitutes the stamp face portion, so that the stencil printing master plate is simple. Compact and lightweight structure.
Further, since the heat-sensitive stencil sheet is configured to cover the surface of the ink body in a fixed manner, the ink does not leak to other than the printing surface portion. When the ink body is composed of an impregnated body that is impregnated with ink, the ink can be supplied during printing for just a long time.

However, the applicant of the present application has now found the following problems in the case where the surface of the ink body is fixedly covered with the heat-sensitive stencil sheet to form the printing surface portion. That is, for example, even if the ink body is formed into a substantially rectangular parallelepiped so that the printing surface becomes flat, when the ink body is actually wrapped with the heat-sensitive stencil sheet, the edge portion becomes rounded, and the edge portion becomes rounder than the central portion. For example, it is thinly deformed by about 0.5 mm. The reason for this is that the ink body needs to be bleeding when pressed, so that the ink body is often composed of an impregnated body in which the ink is impregnated. In this case, since the impregnated body is composed of the elastic foam of the synthetic resin material, the wrapping with the heat-sensitive stencil sheet inevitably causes the edges to be rounded.

Since the edge portion is rounded and deformed thinner than the central portion in this manner, when the thermal head is used for punching, defective punching is likely to occur at the edge portion. This will be described with reference to FIG. FIG. 25 shows the positional relationship between the stamp face 230 and the thermal head 290 during the punching operation. The structure will be briefly described. The recess 2 of the hollow rectangular base member 226 having a shallow recess 225 on the lower surface side.
An impregnating body 227 impregnated with an oil-based ink is attached to 25, and a heat-sensitive stencil sheet 228 covers the lower surface of the impregnating body 227 and the outer peripheral side of the base member 226 with an adhesive 229 and an outer peripheral surface of the base member 226. Is glued to. A portion where the heat-sensitive stencil sheet 228 and the lower surface of the impregnated body 227 overlap each other serves as a stamp surface portion 230. Note that, in FIG. 25, in order to clarify the above-described deformation of the edge portion, the deformation degree is emphasized rather than the actual deformation degree.

In FIG. 25, it is assumed that the thermal head 290 moves from the right end (state (A)) to the central portion (state (B)) to the left end (state (C)) while punching. In the central portion shown in (B), the thermal head 290
Since the contact state between (the heating element of) and the stamp surface portion 230 is normal, excellent perforation can be performed. On the other hand, (A),
Since the contact state between the thermal head 290 and the stamp face portion 230 is deviated at both end portions shown in (C), even if the same punching energy as in the central portion of (B) is applied, the thermal head 290 generates heat. The amount of heat applied to the stamp face portion 230 is reduced, and there are cases in which normal punching is not possible. Therefore, the perforation failure is likely to occur at the edge portion.

Therefore, in the present invention, the stamp body is downsized.
To provide a stamp device which can be appropriately reduced in weight and cost, and which comprises a stamp body capable of preventing ink leakage and a heating punching device capable of punching a stamp face portion of the stamp body, and further capable of appropriately preventing punching failure. With the goal.

[0015]

In order to achieve the above object, the present invention according to claim 1 is mounted on a grip portion, fixedly covers an ink body and the surface of the ink body, and a stamp face portion. A stamp body having a stencil printing master plate including a heat-sensitive stencil sheet, a perforation mounting part for removably mounting the stamp body, and an input means for inputting characters and symbols, Data storage means for storing input data input from the input means, perforation means including a thermal head for perforating dots in a stamp face portion of the stamp body mounted on the perforation mounting portion, and the data storage A stamping device comprising: a heating punching device having a drive control and a punching control for the punching device based on input data from the stamping device; While moving the thermal head so as to relatively slide along the longitudinal direction of the stamp face portion of the stamp body attached to the punching mount portion, from one end to the other end of the stamp face portion of the stamp body. A stamp for performing a piercing operation, characterized in that the piercing energy for predetermined portions at both ends of the stamp face portion during the piercing operation is increased by a predetermined amount over the piercing energy for portions between the predetermined portions at both ends. It is a device.

The ink body may be an impregnated body impregnated with ink as described in claim 5. Further, as the impregnated body, for example, as described in claim 6, it is conceivable that the impregnated body is made of an elastic foam of a synthetic resin material.

According to a second aspect of the present invention, the control means controls the voltage applied to the thermal head so that the perforation energy with respect to a predetermined portion of both ends of the stamp face portion during the perforation operation is controlled. The stamping device according to claim 1, wherein the stamping energy is increased by a predetermined amount over a portion between the predetermined portions.

According to a third aspect of the present invention, the control means controls the application time to the thermal head so that the perforation energy with respect to predetermined portions at both ends of the stamp face portion during the perforation operation can be controlled. The stamping device according to claim 1, wherein the stamping energy is increased by a predetermined amount over a portion between the predetermined portions.

In the second and third aspects, the degree of increase in the drilling energy may be appropriately set depending on how thinly the edge portion is deformed as compared with the central portion. According to a fourth aspect of the present invention, the control means causes the punching operation to be performed in a unit of one dot row from one end to the other end of the stamp face portion of the stamp body. 2. The stamp device according to claim 1, wherein the punching energy for the predetermined dot row and the predetermined dot row before the end of punching is increased by a predetermined amount as compared with the punching energy for the dot rows in between.

[0020]

According to the stamp device having the above-mentioned structure, the character and the symbol are inputted from the input means in a state where the stamp body is mounted on the perforation mounting portion of the heating perforation device. And the input data is stored in the data storage means, and the control means receives the input data from the data storage means to drive and control the punching means including the thermal head, and punches the stamp surface of the stamp body in a dot shape. To do.

The stamp body having the stamped surface thus punched out is taken out from the punching mounting portion of the heat punching device, and the grip portion of the stamp body is gripped to press the stencil printing master plate against the surface of the paper. Since the ink of the ink body oozes out from the perforations of the heat-sensitive stencil sheet constituting the printing surface, the pattern such as the input character string is printed on the paper.

Here, the stencil printing base plate of the stamp body is attached to a grip portion, and the stencil printing base plate is composed of an ink body and a heat-sensitive stencil base paper which fixedly covers the surface of the ink body and constitutes a stamp face part. Therefore, the original plate for stencil printing has a simple and small-sized and lightweight structure, and the production cost of the stamp body can be reduced. In addition, since the heat-sensitive stencil sheet is configured to fixedly cover the surface of the ink body, the ink does not leak to areas other than the printing surface, and the ink can be supplied during printing for a long period of time without excess or deficiency.

Here, the control means of the present invention moves the thermal head so that the thermal head relatively slides along the longitudinal direction of the stamp face part of the stamp body mounted on the perforation mounting part, The punching operation is performed from one end to the other end of the stamp face portion, and the punching energy for the predetermined portions at both ends of the stamp face portion during the punching operation is more than the punching energy for the portion between the predetermined portions at both ends. Increased by a predetermined amount.

Since the contact state between the thermal head 290 and the stamp face portion 230 is deviated at both ends shown in FIGS. 25A and 25C, the same punching energy as in the central portion of FIG. 25B is obtained. However, the amount of heat applied from the heating element of the thermal head 290 to the stamp face portion 230 was reduced, but in the present invention, the perforation energy at both ends indicated by (A) and (C) is set to (B). Since the perforation energy in the central portion is increased by a predetermined amount, the thermal head 290
Even if the contact state between the stamp surface portion 230 and the stamp surface portion 230 is deviated, it is possible to normally perforate and prevent the perforation failure at the edge portion.

In order to increase the perforation energy for a predetermined portion at both ends of the stamp surface by a predetermined amount over the perforation energy for a portion between the predetermined portions at both ends, for example, as shown in claim 2, It may be performed by controlling the applied voltage, or by controlling the application time to the thermal head as described in claim 3. Note that the degree of increase in the drilling energy may be appropriately set according to how thin the edge portion is deformed as compared with the central portion.

When the punching operation is performed in one dot row unit from one end to the other end of the stamp face of the stamp body, a predetermined dot row from the start of punching during the punching operation and a predetermined number before the end of punching. The perforation energy for the dot rows may be increased by a predetermined amount over the perforation energy for the dot rows in the meantime. In this case, since the dot row can be used as a reference, control becomes easy.

The control means moves the thermal head so as to relatively slide along the longitudinal direction of the stamp face portion of the stamp body mounted on the punching mounting portion. The body may be fixed and punched while the thermal head is moved, or conversely, the thermal head may be fixedly provided and the stamp body may be moved and punched.

[0028]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view of an embodiment in which the printing device of the present invention is applied to a stamp device. The stamp device according to the present embodiment is roughly divided into a stamp body 1 and a heat punching device 50.
Will be described.

As shown in FIGS. 2 to 5, the stamp body 1
Is a gripping part 2 to be gripped by a hand, a stamp part 3 fixedly connected to the gripping part 2, a skirt member 6 covering the outer peripheral side of the stamp part 3, and detachably mounted on the stamp part 3. It is composed of a protective cap 7.

The grip portion 2 is composed of a rectangular parallelepiped hollow body made of a metal or a synthetic resin material and having an open lower end, and a concave portion 11 for attaching the label 10 is formed on the top of the hollow portion. A pair of engaging claws 14 projecting downward are provided at the lower ends of the wall 12 and the rear wall 13, respectively. Further, a guide groove 15 is formed in the lower portion of the front wall 12 and the rear wall 13 of the grip portion 2, an engaging recess 16 is formed in the front wall 12, and a guide hole 18 is formed in the left side wall 17. Part 2
Inside, the spring support portion 2 is provided at the center of the lower surface of the upper wall 19.
0 is formed.

The stamp part 3 is composed of a stamp part body 4
The stamp part body 4 is inserted and fixed from below, covers the upper approximately 2/3 part of the outer peripheral side of the stamp part body 4, and engages with the four engaging claws 14 of the grip part 2 to grasp the grip part. Two
And an outer circumference holding member 5 fixed to.

The stamp portion main body 4 is a rectangular parallelepiped hollow hollow synthetic resin base member 26 having a shallow recess 25 and an impregnating member 27 mounted in the recess 25 of the base member 26. An impregnating body 27 impregnated with the oil-based ink, and an adhesive 29 that covers the lower surface of the impregnating body 27 and the outer peripheral side of the base member 26.
Heat-sensitive stencil sheet 2 adhered to the outer peripheral surface of the base member 26 by
8 and. The impregnated body 27 may be bonded to the recess 25 of the base member 26 with an adhesive or the like.

The base member 26 is made of a synthetic resin material (for example, vinyl chloride, polypropylene, polyethylene, polyacetal, polyethylene terephthalate, etc.) or a metal material having excellent oil resistance in order to come into contact with the oil-based ink. By mounting the impregnating body 27 in the recess 25 of the member 26, it is possible to prevent the positional displacement of the impregnating body 27 and prevent the outflow of ink from the impregnating body 27.

The impregnated body 27 is made of a synthetic resin material (for example, polyethylene, polypropylene, polyethylene terephthalate, polyurethane, acrylonitrile butadiene rubber or the like) having elasticity or a nonwoven fabric,
The impregnated body 27 is impregnated with oil-based ink in a saturated state, and when pressure is applied to the impregnated body 27, the ink oozes out.

On the other hand, the heat-sensitive stencil sheet 28, as shown in FIG. 7, has a thermoplastic film 30 and a porous support member 3.
1 and an adhesive layer 32 for adhering them. The thermoplastic film 30 is formed of a film of a thermoplastic synthetic resin material (for example, polyethylene terephthalate, polypropylene, vinylidene chloride-vinyl chloride copolymer, etc.) having a thickness of 1 to 4 μm, preferably 2 μm.

If the thickness is less than 1 μm, the manufacturing cost is high, the strength is weak, and the practicability is lacking.
If the thickness is 4 μm or more, the rated output is 5 because it is too thick.
A general thermal head of about 0 mJ / mm ² cannot perforate. The porous support 31 is made of a natural fiber (for example,
Manila hemp, kozo, mitsumata, etc.), synthetic fibers (eg,
Polyethylene terephthalate, polyvinyl alcohol,
Polyacrylonitrile etc.) or semi-synthetic fiber such as rayon as a main raw material.

As shown in FIGS. 6 and 8, with the base member 26 turned upside down, the impregnating body 27 is mounted in the recess 25, and the impregnating body 27 is impregnated with the oil-based ink. From above, the heat-sensitive stencil sheet 28 is covered so that the porous support 31 is on the impregnated body 27 side, and the heat-sensitive stencil sheet 28 is brought into close contact with the surface of the impregnated body 27.
The outer peripheral side portion of 8 is tightly folded on the outer peripheral surface of the base member 26 and adhered by the adhesive layer 29 to form the stamp portion main body 4.

The heat-sensitive stencil sheet 28 is closely adhered to the surface of the impregnated body 27, and the outer peripheral side portion of the heat-sensitive stencil sheet 28 is tightly folded onto the outer peripheral surface of the base member 26 and adhered by the adhesive layer 29. Therefore, the edge is rounded. In this embodiment, the portions indicated by A and C in FIG. 6 are thinly deformed by W as compared with the central portion indicated by B. The widths of the ranges A and C and the width of W vary depending on the degree of elasticity of the impregnated body 27 and the like. As an example of those used in this example, A and C are about 2.8 mm and W is It was about 0.5 mm.

A portion of the heat-sensitive stencil sheet 28 which is in close contact with the surface of the impregnated body 27 (the lower surface in FIG. 6) constitutes a stamp surface portion 33. As described above, since the outer peripheral side portion of the heat-sensitive stencil sheet 28 is adhered to the outer peripheral surface of the base member 26, the stamp surface portion 3 covers almost the entire lower surface of the stamp portion 3.
3 could be formed. As a result, positioning when printing is simplified.

The outer peripheral side portion of the heat-sensitive stencil sheet 28 is
In order to adhere to the outer peripheral surface of the base member 26, an adhesive layer 29 may be formed in advance on the outer peripheral side portion of the heat-sensitive stencil sheet 28, or the adhesive layer 29 may be formed on the outer peripheral surface of the base member 26. It may be formed in advance, or the adhesive layer 29 may be formed on both the outer peripheral portion of the heat-sensitive stencil sheet 28 and the outer peripheral surface of the base member 26.
May be formed in advance.

As shown in FIGS. 3 to 5, the outer peripheral holding member 5 has an outer peripheral wall portion 34 having a rectangular shape in plan view, to which the stamp portion main body 4 is adhered, and an upper wall portion 35. Upper wall 3
5 and a pair of left and right engaging wall portions 36 protruding by a predetermined height. Engagement holes 37 corresponding to the four engagement claws 14 of the grip portion 2 are formed in the pair of left and right engagement wall portions 36, and the pair of left and right engagement wall portions 36 are formed on the skirt member 6. The pair of right and left rectangular holes 42 of the wall portion 41 are vertically slidably inserted from below, and the four engaging claws 14 are engaged with the four engaging holes 37 of the engaging wall portions 36 from above. The outer peripheral holding member 5 is fixed to the grip portion 2 by bringing them together and bringing the upper end of the engagement wall portion 36 into contact with the lower end of the grip portion 2.

As shown in FIGS. 3 to 5, the skirt member 6 has an outer peripheral wall portion 4 having a rectangular shape in plan view in which the outer peripheral wall portion 34 of the outer peripheral holding member 5 is slidably fitted in the vertical direction.
0 and the upper wall portion 41 of the upper end of the outer peripheral holding member 5
An upper wall portion 41 located above the upper wall portion 35, a gate-shaped portion 43 protruding upward from the central portion of the upper wall portion 41 by a predetermined height and inserted into the grip portion 2, and the gate-shaped portion. The spring support portion 45 and the like are provided so as to project from the central portion of the upper end of 43.
Further, guide holes 44 are formed in the lower portions of the left and right wall portions of the gate-shaped portion 43 at positions corresponding to the guide holes 18 in the front-rear direction so as to penetrate the both wall portions.

A compression spring 21 for urging the skirt member 6 downward is attached to the grip portion 2 on the spring support portion 20 of the grip portion 2 and the spring support portion 45 of the skirt member 6. Is the first position shown in FIGS.
The second position shown in FIG. 10 and the third position shown in FIG. 9 are configured to be movable up and down, and the skirt member 6 is biased toward the first position by the spring 21. The lower end of the central portion of the four surfaces of the outer peripheral wall 40 of the skirt member 6 is partially cut out in order to attach / detach the protective cap 7 and to position the stamp surface 33.

In the first position, the upper wall portion 41 of the skirt member 6 contacts the upper wall portion 35 of the outer peripheral holding member 5, and the lower end of the skirt member 6 projects lower than the stamp surface portion 33.
In the second position, the upper wall portion 41 of the skirt member 6 is located between the upper wall portion 35 of the outer peripheral holding member 5 and the lower end of the grip portion 2, and the lower end of the skirt member 6 is at the same level as the stamp face portion 33. In the third position, the upper wall portion 41 of the skirt member 6 contacts the lower end of the grip portion 2, and the lower end of the skirt member 6 is located above the stamp surface portion 33. The stroke of the skirt member 6 from the first position to the second position is
It is desirable to set it to about 5 mm.

The protective cap 7 is formed by the stamp body 4
Is for detachably covering and protecting the lower end side of the outer peripheral wall portion 48 of the outer peripheral wall member 34,
The protective cap 7 is formed in the same shape in plan view,
The skirt member 6 is supported by being fitted in the outer peripheral wall portion 40.

As shown in FIGS. 4 and 5, when the protective cap 7 is attached, the upper end of the protective cap 7 abuts on the lower end of the outer peripheral wall 34, and a small gap is left between the protective cap 7 and the stamp surface 33 to protect the protective cap 7. The cap 7 is supported by the frictional force between the outer peripheral surface of the outer peripheral wall portion 48 and the inner peripheral surface of the outer peripheral wall portion 40 of the skirt member 6. Therefore, even if the grip portion 2 is pushed downward with the protective cap 7 attached, the gap is maintained by the contact between the upper end of the protective cap 7 and the lower end of the outer peripheral wall portion 34. Ink does not adhere to the cap 7.

For example, as shown in FIG. 11, a large number of perforations having a pattern composed of a character string of mirror characters of "Brother Industry Co., Ltd." and a six-fold rectangular frame surrounding the outer side of the character string are formed on the stamp surface portion 33, for example. (Dot pattern perforation) is formed by a thermal head of a thermal printer (not shown).
Since a stamp body capable of printing a character string of "Brother Industry Co., Ltd." which is a mirror image of the pattern and a six-fold rectangular frame is formed, similar to a normal stamp having a rubber stamp surface part, for example, The pattern can be printed about 1000 times.

When punching the heat-sensitive stencil sheet 28 constituting the stamp face portion 33, the stamp body 1 is set in the punching mounting portion 71 of the heating punching device 50 described later, and the guide bar 83 of the device is set. , The guide holes 18, 44, 44 are inserted to hold the skirt member 6 in the third position for perforation, and when not in use, the protective cap 7 is attached, and as shown in FIGS. The skirt member 6 is held at the first position, and at the time of printing, the protective cap 7 is removed, the skirt member 6 is held at the first position, and the skirt member is placed on the surface of the paper P at the position to be printed. 6 is positioned to position the stamp face part 33 of the stamp part 3, and then the grip part 2 is pressed downward.
Print as shown at 0.

Next, the heat punching device 50 will be described. As shown in FIGS. 1 and 12 to 15, the heat punching device 50 includes a main body frame 51, a keyboard 52 and a liquid crystal display 5 provided on a front portion of the main body frame 51.
3, the heat punching portion 54 (shown in FIG. 12 and the like) provided in the rear portion of the main body frame 51, and the control unit CU (shown in the block diagram of FIG. 21) provided in the main body frame 51.
And so on.

The keyboard 52 includes a character / symbol key 56 including a plurality of character keys that also function as a kana key, an alphabetic key, and a plurality of symbol keys, and various function keys (cursor movement key 57, execution key 58, line feed key 59).
・ Confirm / End key 60 ・ Cancel key 61 ・ Delete key 62 ・
Shift key 63, lowercase switch 64, character type setting switch 65, punching switch 66, etc.), main switch 67
Is provided.

The liquid crystal display 53 is configured to be able to display a plurality of lines of character strings corresponding to the pattern to be printed by the stamp body 1. Next, the heating punching portion 54 will be described. As shown in FIGS. 12 to 21, the heating perforation portion 54 has a sub-frame 70 and a perforation attachment portion 71 for detachably attaching the stamp body 1.
Further, a heating perforation mechanism 72 for perforating the stamp surface 1 of the stamp body 1 mounted on the perforation mounting portion 71 in a dodd shape is provided.

Explaining the perforating mounting portion 71, as shown in FIGS. 13 to 16, the right end wall 73 of the sub-frame 70 has a lower half of the stamp body 1 in which the width of the stamp portion 3 in the front-rear direction is maximum. An opening 74 having substantially the same shape as the side surface is formed, and an opening / closing door 75 for opening / closing the opening 74 is fixedly provided with a sector gear 76. The opening / closing door 75 and the sector gear 76 are formed by a pivot 77 that is oriented in the left-right direction in FIG. It is pivotally attached to the right end wall 73 so as to be rotatable. A pair of front and rear parallel guide members 7 are provided on the upper portion of the sub-frame 70.
8 and 79 are provided, and at the lower ends of these guide members 78 and 79, a guide portion 80 that extends horizontally and in parallel in the left-right direction.
Are formed to face each other.

The front guide member 78 is provided with a pair of right and left rollers 81 so as to be movable in the front-rear direction in FIG. 15 through a long hole, and these rollers 81 are biased rearward by a spring 82. ing. The guide bar 83 fixed to the guide member 78 on the front side is
15 and 19, a taper surface 84 is formed on the upper surface of the right end portion of the guide bar 83 so as to be inclined downward to the right, as shown in FIGS.
An engaging portion 85 for restricting the left limit position of the stamp body 1 is formed at the left end portion of the.

The stamp body 1 is inserted through the opening 74,
By engaging the pair of front and rear guide portions 80 with the pair of front and rear guide grooves 15 of the grip portion 2 of the stamp body 1, the stamp body 1 is supported by the pair of guide portions 80, and the stamp body 1 is
The front-rear direction position is accurately set by being urged rearward by a spring 82 via a pair of rollers 81, the stamp body 1 abuts on the locking portion 85, and the right roller 81 is held by the grip portion 2
The position of the stamp body 1 in the left-right direction is accurately set while the stamp body 1 is engaged with the engaging recess 16.

When the stamp body 1 is mounted on the mounting portion 71 for punching, the guide bar 83 is inserted through the guide holes 18, 44, 44 of the stamp body 1, whereby the skirt member 6 is shown in FIG. It is held in the raised state to the third position. The heating punching mechanism 72 will be described. As shown in FIGS.
1, a guide rod 88 extending in the left-right direction for guiding the carriage 87, extending over the right end wall 73 and the left end wall 86 of the sub-frame 70, and the carriage 8.
A head switching rod 89 extending in the left-right direction for operating the cam body 91 that guides 7 and switches the position of the thermal head 90 mounted on the carriage 87 is mounted, and the cam body 91 is attached to the head switching rod 89. It is non-rotatable and slidable in the axial direction.

The carriage 87 has a guide rod 88.
And a head switching rod 89 so as to be movable in the left-right direction, and a rack 92 having a predetermined length over the entire length is formed at the front end of the carriage 87. A cam contact plate 93 and a head heat dissipation plate 94 are mounted on the carriage 87 so as to be vertically swingable by a support shaft 95 oriented in the front-rear direction, and the thermal head 90 is fixed to the head heat dissipation plate 94. The head heat dissipation plate 94 is elastically urged upwards with respect to the cam contact plate 93 by a spring 97 mounted on a pin 96 fixed to the head heat dissipation plate 94.

The cam body 91 is formed in an elliptical shape and abuts against the lower surface of the cam abutment plate 93. When the head switching rod 89 is rotated to bring the cam body 91 into a horizontal posture, the thermal head 90 moves. When the thermal head 90 is released downward together with the head heat dissipation plate 94 and the cam body 91 is placed in the upright posture, the thermal head 90 swings upward through the cam contact plate 93 and the spring 97 to switch to the punching position. .

A gear 98 meshing with the sector gear 76 is provided outside the right end wall 73 of the sub-frame 70 at the right end of the head switching rod 89.
5 is opened, the cam body 91 is in a horizontal posture, and when the opening / closing door 75 is closed, the cam body 91 is switched to a vertical posture.

On the front wall 99 of the sub-frame 70, a carriage feed motor 100 for driving the carriage 87.
A drive gear 101 meshed with the rack 92, and a reduction gear mechanism 102 for transmitting the rotation of the output gear 102 of the output shaft of the carriage feed motor 100 to the drive gear 101 are additionally provided. Therefore, the rotational driving force of the carriage feed motor 100 is decelerated and transmitted to the drive gear 101, so that the carriage 87 can be moved and driven in the left-right direction by the carriage feed motor 100.

The thermal head 90 is similar to the thermal head of a thermal printer. As shown in FIG. 22, the thermal head 90 is provided with, for example, 96 heating elements 103 in one row in the front-back direction. Has been.
Next, a control system including a control unit CU for driving and controlling the heat punching mechanism 72 and the liquid crystal display 53 will be described.

As shown in FIG. 21, the control unit CU has a keyboard 52, a thermal head 90, a carriage feed motor 100, a liquid crystal display 53, the presence / absence of the stamp 1 and the front / rear width. Two proximity switches 104 and 105 are connected.

In the case of the present embodiment, the stamp body 1 has two types, a narrow type shown by a solid line and a wide type shown by a chain line in FIGS. 14 and 18, and two proximity switches 104 and 10 are provided.
5, 5 is attached to a plate piece 106 fixed to the lower surface of the rear guide member 79 as shown in FIGS. 12, 14, and 18, and the wide type stamp body 1 is detected by the proximity switches 104 and 105. The proximity switch 104 detects the narrow stamp type stamp body 1.

As shown in FIG. 21, the control unit CU
Is a CPU 111, a ROM 112, and a RAM 113
A punching CG-ROM 114, a display CG-ROM 115 for displaying on the display 53, an input interface 116 connected to the keyboard 52 and the proximity switches 104 and 105, and an output interface 117.
And are connected to each other by a bus 118. Further, a head drive circuit 119, a motor drive circuit 120, and a display drive circuit 121 are connected to the output interface 117 of the control unit CU, respectively.

The ROM 112 is provided with a program memory 122 which stores a control program for controlling the overall operation of the heat punching device 50, and a dictionary memory 123 for kana / kanji conversion. RAM 113
Is provided with an input buffer 124 that stores input data, a punching buffer 125 that stores punching data, a shift register 126, and various other counters and registers.

In the punching CG-ROM 114, dot pattern data of many characters to be punched is stored in association with the code data, and the display CG-RO is also stored.
In M115, display dot pattern data of a large number of characters to be punched is stored in association with code data.

Next, the head drive circuit 119 will be described. As shown in FIG. 22, one electrode of each heating element 103 is connected to a + 12V power supply terminal 127, and the other electrode is connected to a driver 128. The input terminals of each driver 128 include the output terminal of the inverter 129 connected to the input side of the punching strobe input terminal 130 and the output terminal of the data latch circuit 132 whose input side is connected to the latch signal input terminal 131. Each is connected. Further, the data latch circuit 13
The output terminals of the shift register 135, whose input terminals are connected to the clock input terminal 133 and the data input terminal 134, are connected to the respective input terminals 2 of FIG.

In the head drive circuit 119, the shift register 135 stores the punching data in synchronization with the clock signal, and when the latch signal is then supplied to the data latch circuit 132, the shift register 135 stores the data. Data latch circuit 13 to which the corresponding data corresponds
2 is output and stored. At the same time, the data is applied to each driver 128. In this state,
When a punching pulse signal of logic “0” is applied to the input terminal of the inverter 129 from the punching strobe input terminal 130, a signal of logic “1” is output from the output terminal of the inverter 129 and is input to the input terminal of each driver 128. Is applied.

Therefore, when the data of the data latch circuit 132 is logic "1", the output side of the driver 128 is logic "0", and the driving current is supplied from the power supply terminal 127 to the corresponding heating element 103. . At that time, the pulse width of the perforation pulse signal input to the perforation strobe input terminal 130 is set so that the surface temperature of the heating element 103 becomes a temperature suitable for thermal perforation.

Next, the processing for punching a pattern of a character string on the stamp face portion 33 of the stamp body 1 by using the heating punching device 50 will be described with reference to the flowcharts of FIGS. First, the main processing will be described with reference to FIG. Although this processing is executed by the control unit CU, the operation executed by the operator will be supplemented as needed during the explanation of the processing.

The main processing is started when the main switch 67 is turned on, and the proximity switches 104 and 105 are first
The detection signal from is read (step 10. The step is hereinafter referred to as S). Next, it is determined whether or not the stamp body 1 is present, that is, whether or not the stamp body 1 is mounted on the perforation mounting portion 71 (S20), and when a positive determination is made, that is, the stamp body 1 is perforated mounting portion 71. When the power is turned on while it is still attached to the 71, a liquid crystal display (hereinafter, LCD
A message "Please remove the stamp body" is displayed in 53 (S30), and the process returns to S10.

The above steps S10 to S30 are repeatedly executed until the operator removes the stamp body 1.
When the opening / closing door 75 is opened and the stamp body 1 is removed, a negative determination is made in S20. The stamp body 1 was not attached to the perforation mounting portion 71 when the power was turned on, or the stamp body 1 was attached to the perforation mounting portion 71 when the power was turned on. When 1 is removed (S20:
NO), the process proceeds to S40 and the RAM of the heating punching device 50
112 data clear and carriage feed motor 100
Drive the carriage 87 to move the carriage 87 to the initial position at the right end of the guide lot 88, and execute the initial setting.
In 53, "Preparing" is displayed.

Subsequently, in S50, the input setting of the stamp surface content is executed by operating the keyboard 52. In this input setting, the stamp surface size is designated and the format input including the setting of the character size and the character arrangement is performed. The input of the punching character string data to the input buffer 124 is executed.

When the stamp face content input setting in S50 is completed, a message "Please attach a stamp body" is displayed on the LCD 53 (S60), and the process waits until the punching switch 66 is turned on (S70). . During this time, the operator opens the opening / closing door 75, mounts the stamp body 1, and then closes the opening / closing door 75, that is, mounts the stamp body 1 on the perforation mounting portion 71. To supplement the operation at the time of mounting, the opening operation of the opening / closing door 75 causes the sector gear 76 to rotate clockwise in FIG. 18, and with this rotation, the head switching rod 8 is rotated via the gear 98 meshing with the sector gear 76.
9 rotates counterclockwise in FIG. Then, the cam body 91 attached to the head switching rod 89 is placed in the sideways posture, and the thermal head 90 moves the head heat dissipation plate 94.
It is released downward with.

The operator inserts the stamp body 1 through the opening 74 while engaging the guide groove 15 of the grip portion 2 of the stamp body 1 with the guide portion 80. At the time of this insertion, the thermal head 90 does not interfere with the mounting of the stamp body 1.
Further, with the insertion, the guide bar 83 is inserted through the guide holes 18, 44, 44 of the stamp body 1. As a result, the gate-shaped portion 43 rises along the tapered surface 84 of the guide bar 83, and as the gate-shaped portion 43 rises,
As shown in FIG. 19, the skirt member 6 rises so that its lower end is located above the stamp surface 33, and as shown in FIG. 20, this state is maintained.

The operator touches the stamp body 1 with the engaging portion 85 of the guide bar 83, and the right roller 81 provided on the guide member 78 engages with the engaging recess 16 of the grip portion 2 of the stamp body 1. Insert until you do. When the stamp body 1 is inserted until it abuts and engages with it, the stamp body 1 is arranged at a predetermined position in the perforation mounting portion 71 shown in FIG.

Next, the operator performs the closing operation of rotating the opening / closing door 75 counterclockwise in FIG. With this closing operation, the sector gear 76 rotates counterclockwise in FIG. 18, and the head switching rod 89 rotates clockwise in FIG. 18 with the rotation of the sector gear 76. Then, the cam body 91 attached to the head switching rod 89 is placed in the upright posture, and the thermal head 90 moves the cam contact plate 93.
20 and is swung upward through the spring 97, and is arranged at a punching position for pressing the right end of the stamp face portion 33 of the stamp body 1 shown by the solid line in FIG.

As described above, the operator uses the stamp body 1
After mounting, the perforation switch 66 is turned on. Figure 2
3, the punching switch 66 is turned on (S7
0: YES), the detection signals of the proximity switches 104 and 105 are read (S80), and it is determined whether or not the stamp body 1 is present next, that is, whether or not the stamp body 1 is attached to the perforation attachment portion 71. Yes (S90). When the stamp body 1 is not attached, that is, when the operator operates the punch switch 66 without attaching the stamp body 1 (S90:
If "NO", the message "Please attach the stamp body" is displayed on the LCD 53 in S100, and then the process returns to S70.

On the other hand, if the affirmative determination is made in S90, that is, if the stamp body 1 is attached, it is determined in S110 whether the stamp face size set in S50 and the size of the stamp body 1 are compatible. . The size of the stamp body 1 is the width size of the stamp body 1 determined based on the detection signals from the proximity switches 104 and 105.

Next, in S110, a negative determination is made, that is, when the size of the stamp body 1 does not match the set stamp face size, "Please replace the stamp body" on the LCD 53.
Is displayed (S120), and the process returns to S70. Then, S70 to S120 are repeatedly executed until the currently mounted stamp body 1 is removed and the stamp body 1 having a size that matches the set stamp face size is mounted.

On the other hand, if the affirmative judgment is made in S110, that is, if the size of the mounted stamp body 1 conforms to the set stamp face size, the stamp face portion 33 of the stamp body 1 is punched and the punching process is performed. The LCD 53 displays "during drilling" (S130). The punching process will be described later in detail with reference to FIG.

When the punching process in S130 is completed, LC
"Drilling processing completed" and "Please remove the stamp body" are displayed on D53 (S140), and the process returns to S10.
Look at this "Please remove the stamp body" display,
The operator opens the opening / closing door 75 and removes the stamp body 1. At this time, since the carriage 87 has moved to the position shown by the chain double-dashed line in FIG. 20, the carriage 87 and the thermal head 90 do not hinder the removal of the stamp body 1.

Next, the punching process in S130 will be described in detail with reference to the flowchart of FIG. First, the outline of the punching process will be described. S50 of FIG. 23 above
Contents of the stamp face input and set in, that is, the input buffer 12
The dot pattern data for punching is created based on the format and the character string data for punching, which are stored in the punching buffer 125. The carriage feed motor 100 is driven based on the dot pattern data stored in the punching buffer 125, and the carriage 87 is moved to the position shown in FIG.
While moving from the position indicated by the solid line 1 to the position indicated by the chain double-dashed line, the thermal head 90 is driven,
A perforation is formed in 3 based on the dot pattern data for perforation. At the end of punching, the carriage 87 is driven to move to the position where the thermal head 90 deviates to the left from the stamp face portion 33. Therefore, the thermal head 90 causes the stamp face portion 33 to move.
There is no possibility that ink will leak due to continuous pressing.

In the punching process of FIG. 24, first, the line counter value C is set to "0" (S210), and the numerical range of the line counter value C that is incremented each time one dot row is punched is set to S220, Determined in S230,
The application time according to the determination result is set in S240 to S260.

More specifically, first in S220, it is determined whether the line counter value C is within the range A. If it is within the range A, the application time is set to Ta (S240). Also,
If the line counter value C is not within the range A (S220:
NO), in S230, determine whether it is within range B,
If it is within the range B, the application time is set to Tb (S2
50). If the line counter value C is neither within the range A nor within the range B (S220: NO, S230: N).
O), and the application time is set to Tc (S260).

This range A to C and application time Ta, Tb,
Tc will be described. The ranges A to C correspond to the regions shown by A to C in FIG. In this embodiment, 20 dot rows at both ends of the stamp face 33 correspond to each other, and assuming that the total number of dot rows is 495, the first dot row to the 20th dot row.
The range up to the dot row is range A, and the 21st dot row to the 47th dot row
The range B is up to 5 dot rows, and the range C is from 476th dot row to 495th dot row.

Regarding the application times Ta, Tb, Tc, the application times Ta, Tc corresponding to the ranges A, C are set to be larger than the application time Tb corresponding to the range B. In the present embodiment, for example, Ta = Tc = 6 ms and Tb = 4
It is set to ms. Returning to FIG. 24, in S270,
Drilling is performed by the application time Ta, Tb, or Tc set in any of S240 to S260.

Then, it is judged whether or not it is the last line (S280), and if it is not the last line, the line counter is incremented in S290 and the process returns to S220. On the other hand, if the line is the last line (S280: YES), this process is temporarily terminated, the process returns to the main process in FIG. 23, and the process proceeds to S140.

As described above, in this embodiment, while the thermal head 90 is slid along the longitudinal direction of the stamp face portion 33 of the stamp body 1 mounted on the perforation mounting portion 71,
A punching operation is performed from one end of the stamp face portion 33 of the stamp body 1 toward the other end, and the punching energy for predetermined portions (ranges A and C in FIG. 6) at both ends of the stamp face portion 33 during the punching action. Is increased by a predetermined amount from the drilling energy for the portion between them (the portion B in FIG. 6). Specifically, the application times Ta and T for the ranges A and C are more than the application times Tb for the range B.
It is realized by making c longer.

As a result, the contact state between the thermal head 90 and the stamp face portion 33 is deviated at both end portions of the stamp face portion 33 indicated by A and C in FIG. 6, but in order to compensate for this,
Since the perforation energy is increased more than that in the portion B, the amount of heat applied from the heating element of the thermal head 90 to the stamp surface portion 33 is substantially equal in the entire range. Therefore, even if the contact state between the thermal head 90 and the stamp surface 33 is deviated, it is possible to normally perforate and prevent the perforation failure at the edge portion.

Predetermined portions (A,
To increase the drilling energy for C), see FIG.
4, the application time to the thermal head 90 may be controlled, or the voltage applied to the thermal head 90 may be controlled.

For example, S240 to S260 in FIG.
Application time Ta, Tb, and Tc of the applied voltage Va,
It may be changed to Vb and Vc. In this case, the range A,
The applied voltages Va and Vc corresponding to C are set to be larger than the applied voltage Vb corresponding to the range B.

In the above embodiment, the impregnated body 27 corresponds to the ink body, and the impregnated body 27 and the heat-sensitive stencil sheet 28 correspond to the stencil printing plate. The keyboard 52 corresponds to the inputting means, and the heating punching mechanism 72 corresponds to the punching means.
The control unit CU corresponds to the control means, and the RAM
113 corresponds to the data storage means.

Here, a part of the above embodiment can be modified as follows. (1) The punching mounting portion 71 is configured to detachably mount the stamp body 1 from the right side, but may be configured to detachably mount the stamp body 1 from above. (2) The heating punching mechanism 72 is configured to punch the thermal head 90 while moving the thermal head 90 via the carriage 87 while holding the stamp body 1 at a predetermined position. Provided, stamp body 1
It may be configured such that the hole is moved while the hole is moved. (3) Instead of the impregnated body 27, an ink body composed of a high-viscosity ink mass is used, and the ink body is recessed 25.
Alternatively, it may be mounted in the same shape and raised in the same shape as the impregnated body 27.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment in which a printing device of the present invention is applied to a stamp device.

FIG. 2 is a perspective view of a stamp body according to an embodiment.

FIG. 3 is an exploded perspective view of a stamp body according to an embodiment.

FIG. 4 is a vertical sectional front view of a stamp body according to an embodiment.

FIG. 5 is a vertical sectional side view of the stamp body according to the embodiment.

FIG. 6 is an enlarged vertical sectional front view of the stamp body of the stamp body of the embodiment.

FIG. 7 is an enlarged sectional view of a heat-sensitive stencil sheet of a stamp body.

FIG. 8 is a perspective view illustrating a method of manufacturing the stamp main body.

FIG. 9 is a vertical sectional front view of the stamp body when the skirt member is at the third position.

FIG. 10 is a vertical sectional front view of the stamp body when the skirt member is at the second position.

FIG. 11 is a diagram showing an example of a pattern for punching a stamp face of a stamp body.

FIG. 12 is a plan view of the heating punching device.

FIG. 13 is a partially cutaway front view of the heat punching device.

FIG. 14 is a partially cutaway vertical side view of the heating punching device.

FIG. 15 is a perspective view of a heating punching unit of the heating punching device.

FIG. 16 is a perspective view of an essential part of a heating punching unit of the heating punching device.

FIG. 17 is an exploded perspective view of a heating and punching mechanism.

FIG. 18 is a side view of an essential part of a heating punching unit of the heating punching device.

FIG. 19 is a vertical cross-sectional front view of the stamp body and the heating punching part which are being mounted on the mounting part for punching.

FIG. 20 is a vertical cross-sectional front view of the stamp body and the heat punching unit after being attached to the punching attaching unit.

FIG. 21 is a block diagram of a control system of the stamp device.

FIG. 22 is an electric circuit diagram of a head drive circuit.

FIG. 23 is a flowchart showing a main process performed by the heating punching device.

FIG. 24 is a flowchart showing a punching process by the heating punching device.

FIG. 25 is an explanatory diagram showing the positional relationship between the stamp face portion and the thermal head during the punching operation.

[Explanation of symbols]

1 ... Stamp body 2 ... Grip part 3 ...
Stamp part 4 ... Stamp part body 5 ... Perimeter holding member 11 ...
Recesses 27 ... Impregnated body 28 ... Heat-sensitive stencil base paper 29
... Adhesive layer 33 ... Stamp face 50 ... Heat punching device 52
... keyboard 53 ... liquid crystal display 54 ... heating punching part 56
... Character / symbol key 66 ... Drilling switch 71 ... Drilling mount 72
... Heat punching mechanism 90 ... Thermal head 100 ... Carriage feed motor 111 ... CPU 112 ... ROM 11
3 ... RAM 114 ... Drilling CG-ROM CU ... Control unit

Claims (6)

[Claims] 1. A stamp body provided with a master plate for stencil printing, which is attached to a grip portion and fixedly covers an ink body and a surface of the ink body to form a stamp face portion, and a stamp body. A mounting part for detachably mounting the device, an input means for inputting characters and symbols, a data storage means for storing the input data input from the input means, and a mounting part for the mounting part for drilling. Punching means including a thermal head for punching the stamp surface of the stamp body in a dot shape, and control means for performing drive control and punching control for the punching means based on input data from the data storage means. A stamping device comprising a heating punching device provided, wherein the control means is arranged along a longitudinal direction of a stamp face portion of the stamp body mounted on the punching mounting portion. While the thermal head is slidably moved, a punching operation is performed from one end to the other end of the stamp surface portion of the stamp body, and a predetermined amount of both ends of the stamp surface portion during the punching operation is performed. A stamping device, wherein a punching energy for a portion is increased by a predetermined amount as compared with a punching energy for a portion between predetermined portions at both ends thereof. 2. The control means controls the voltage applied to the thermal head, so that the piercing energy with respect to predetermined portions at both ends of the stamp face portion during the piercing operation is determined by a portion between the predetermined portions at both ends. The stamping device according to claim 1, wherein the stamping energy is increased by a predetermined amount than the punching energy for the stamp. 3. The control means controls the duration of application to the thermal head, so that the perforation energy with respect to predetermined portions at both ends of the stamp face portion during the perforation operation is controlled by a portion between the predetermined portions at both ends. The stamping device according to claim 1, wherein the stamping energy is increased by a predetermined amount than the punching energy for the stamp. 4. The control means causes the punching operation to be carried out in one dot row unit from one end to the other end of the stamp face portion of the stamp body, and a predetermined dot row is started from the start of the punching operation during the punching operation. The stamping device according to claim 1, wherein the punching energy for a predetermined dot row before the completion of punching is increased by a predetermined amount as compared with the punching energy for the dot rows in between. 5. The stamp device according to claim 1, wherein the ink body is an impregnated body impregnated with ink. 6. The stamp device according to claim 5, wherein the impregnated body is formed of a foamed material having elasticity of a synthetic resin material.