JPH07329271A - Stamping apparatus - Google Patents

Abstract

PURPOSE:To obtain a stamping apparatus which can form a stamp in which an imprinted character, etc., is not oozed out or not skipped. CONSTITUTION:When a thermal head 90 is disposed in a perforating state, the position of the head 90 intruded into the printing surface of an impregnating material is always disposed at the position decided by a specific compression quantity DELTAt via the energizing force of a spring or the force of the spring in the state that the engaging plate of a heat dissipating plate is engaged with the upper end of the engaging hole of a carriage, and the perforating pressure sigmawhen the head 9 is brought into contact with the material without influence of the size and the elastic force of a stamping unit becomes a specific value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamping apparatus for forming a stamp by punching a stamping master plate which covers a surface of an ink body and constitutes a stamping surface of a stamping body through a thermal head, and more particularly to a stamping machine. The present invention relates to a stamping device capable of always setting a constant pressure as a punching pressure exerted on a surface of a stamp body by a thermal head even when the size of a stamp face portion of the stamp body is changed when the stamping plate is punched.

[0002]

2. Description of the Related Art Heretofore, various stamps for printing a company name, an address, and other various character strings on the surface of a paper, the stamp surface of which is made of rubber, have been used. 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, conventionally, a heat-sensitive stencil that can be used for printing various patterns such as character strings, figures, marks, etc. by perforating a desired pattern by irradiating infrared rays or by using a thermal head and transmitting ink from the perforation group Base paper has been put to practical use.

The applicant of the present application, in Japanese Utility Model Application Laid-Open No. 5-74833, discloses a stencil printing plate mainly composed of the heat-sensitive stencil sheet and an impregnated body impregnated with ink, wherein the conventional stamp face is made of rubber. We have proposed a stencil printing plate suitable for making a stamp that replaces the constructed stamp. 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 cushioning material, and the heat-sensitive stencil sheet is irradiated with infrared rays or By punching a desired character string pattern with a thermal head, the stamp is composed of a stamp member and a stencil printing plate, and like the ordinary stamp, a large number of the desired character string pattern can be formed on the paper. A stamp that can be printed over time is obtained. Further, the applicant of the present application has proposed in Japanese Patent Application Laid-Open No. 4-226778 a stamp device comprising a stamp body and a heating punching device for forming a punch on a stamp face portion of the stamp body.

The stamp body is provided with a grip portion, a main body case, and a supply reel and a take-up reel which are provided in the main body case to supply and wind the tape-shaped heat-sensitive stencil sheet.
An ink pad for supplying ink to a part of the perforated heat-sensitive stencil sheet. The heating and 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, and a thermal head for forming holes in the heat-sensitive stencil sheet of the stamp body. It is composed of a keyboard for inputting characters and symbols, and a control device for controlling the feeding mechanism and the thermal head so that a character string input based on the input data is punched in the heat-sensitive stencil sheet.

According to this type of stamping device, the stamp body is provided with a tape-shaped heat-sensitive stencil sheet, and the heating punching device can punch a desired character string pattern on the stamping surface of the stamp body. Depending on the situation, different patterns can be punched on the stamp face, and ink is automatically supplied from the ink pad inside the stamp body to the stamp face during printing, so external ink is applied to the stamp face part. You can print without doing.

[0007]

By the way, in the stamp body in the stamp device of the above-mentioned Japanese Patent Laid-Open No. 4-226778, as described above, the stamp face portion of the stamp body is provided with the tape-shaped heat-sensitive stencil sheet. A thermal head is pressed against the heat sensitive stencil sheet by the heating punching device to the printing surface of the stamp body to punch a desired character string pattern. However, at this time, the thermal head is always pressed against the stamp face with the same biasing force, while the size of the heat-sensitive stencil sheet on the stamp face differs depending on the stamp body. Is relatively different.

Therefore, when the perforation pressure becomes large, the perforations formed on the printing surface become large, and the ink oozes out from the ink pad, thus contaminating the printing surface. Moreover, when the ink is squeezed by the thermal head, the squeezed ink accumulates on the downstream side of the printing surface portion, and when printing is performed, the downstream side where the ink has accumulated bleeds. Also, when the thermal head is squeezed, wrinkles are formed on the stencil sheet.

On the other hand, when the drilling pressure becomes small,
The perforations formed on the stamp face may become smaller or may not be perforated. Therefore, it is possible that fading occurs or imprinting is not performed at the time of imprinting.

The present invention has been made in order to solve the above-mentioned problems of the prior art. Regardless of the size of the stamp face portion of the stamp body composed of the stencil printing plate, the punching pressure is always constant and appropriate. It is therefore an object of the present invention to provide a stamping device capable of punching a pattern such as a desired character string or the like so that a stamped character or the like does not bleed or blur.

[0011]

In order to achieve the above-mentioned object, the present invention is a stencil printing plate fixed to a grip portion with or without other members, which comprises an ink body and its ink body. It is composed of a stencil printing plate containing a heat-sensitive stencil sheet that covers the surface fixedly and forms a stamp face part, and has a stamp body having a predetermined elastic force and thickness, and input means for inputting characters and symbols. Heating provided with control means for receiving input data from a data storage means for storing input data and driving-controlling the punching means including a thermal head for punching dot-shaped on the stamp face part of the stamp body mounted on the punching mount part In a stamping device having a punching device, a biasing portion that biases the thermal head upward with a predetermined force and positions the thermal head at a predetermined position regardless of the elastic force of the stamp body. It is configured to include a.

Further, the thermal head urged by the urging member may be provided with a restricting member for restricting it to a predetermined position.

[0013]

In the stamp device of the present invention having the above structure,
When a stamp or body having a predetermined elastic force and a thickness is mounted on the mounting portion for punching of the heat punching device, when a character or a symbol is input from the input means, the input data is stored in the data storage means and controlled. The means receives the input data from the data storage means, drives and controls the punching means including the thermal head, and punches a character string or the like in a dot shape on the stamp surface portion of the stamp body.

At this time, the thermal head of the stamp device is urged upward by a predetermined force through the urging member or the urging member and the regulating member, and the elasticity of the stamp body is increased. Positioned in place without being affected by force. Therefore, since the thermal head is always positioned at the predetermined position, the stamp face portion of the stamp body is always compressed with a certain amount of compression through the thermal head, which causes the stamp face portion of the stamp body to be compressed through the thermal head. The piercing pressure exerted on the stamp body is always constant because the stamp body has a predetermined thickness. As a result, a character string or the like can be perforated in the stamp face portion of the stamp body via the thermal head with a constant perforation pressure at all times.

After the punching is performed, the stamp body is taken out from the punching mounting portion of the heat punching device, the gripping portion of the stamp body is gripped by hand, and the stencil printing plate is pressed against the surface of the paper. Since the ink of the ink body of the original plate oozes out from the perforations of the heat-sensitive stencil sheet that constitutes the printing surface,
The pattern such as the input character string is imprinted on the paper. At the time of marking such a character string or the like, since the character string or the like is perforated with a constant perforation pressure as described above on the stamp face portion of the stamp body, the character string or the like is not bleeding or blurring,
It becomes possible to imprint.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The stamp device according to this embodiment is shown in FIGS.
The stamp body 1 shown in FIG. 10 and the heating punching device 50 shown in FIGS. First, the stamp body 1 will be described with reference to FIGS. As shown in FIGS. 1 to 4, a stamp body 1 includes a grip portion 2 to be gripped by a hand, a stamp portion 3 fixedly connected to the grip portion 2, and a skirt that covers the outer peripheral side of the stamp portion 3. It comprises a member 6 and a protective cap 7 which is detachably attached to the stamp portion 3.

The grip portion 2 is formed of a rectangular parallelepiped hollow body made of a metal or a synthetic resin material and having an open lower end, and a recess 11 for sticking the label 10 is formed on the top of the hollow portion. A pair of engaging claws 14 projecting downward are provided on the lower ends of the front wall 12 and the rear wall 13, respectively. Further, in the lower portions of the front wall 12 and the rear wall 13 of the grip portion 2,
The guide groove 15 is formed, the engaging recess 16 is formed in the front wall 12, the engaging hole 18 is formed in the left side wall 17, and the central portion of the lower surface of the upper wall 19 inside the grip portion 2 is formed. A spring support portion 20 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 body 4 is provided with a shallow recess 25 on the lower surface thereof and is a rectangular parallelepiped hollow hollow synthetic resin base member 2.
6 and the impregnated body 2 mounted in the recess 25 of the base member 26
7, the impregnated body 27 impregnated with the oil-based ink (this corresponds to the ink body), and the lower surface of the impregnated body 27 and the outer peripheral side of the base member 26 are covered with an adhesive 29 on the outer peripheral surface of the base member 26. It is composed of a heat-sensitive stencil sheet 28 which is adhered. The impregnated body 27 may be adhered 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 which is excellent in oil resistance because it comes into contact with the oil-based ink. By mounting the impregnated body 27 in the recess 25 of 6, the positional displacement of the impregnated body 27 can be prevented, and the impregnated body 2 can be prevented.
It is possible to prevent the outflow of ink from 7.

The impregnated body 27 is made of an elastic foam or non-woven fabric of synthetic resin material (for example, polyethylene, polypropylene, polyethylene terephthalate, polyurethane, acrylonitrile butadiene rubber, etc.),
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.

As shown in FIG. 6, the heat-sensitive stencil sheet 28 has a thermoplastic film 30, a porous support 31 and
It is composed of an adhesive layer 32 for adhering these. The thermoplastic film 30 has a thickness of 1 to 4 μm, and preferably 2 μm, such as a thermoplastic synthetic resin material (for example, polyethylene terephthalate, polypropylene, vinylidene chloride).
Vinyl chloride copolymer, etc.).

If the thickness is less than 1 μm, the manufacturing cost is high, the strength is weak, and it lacks practicality.
Those having a thickness of 4 μm or more cannot be perforated by a general thermal head having a rated output of about 50 mJ / mm ² because they are too thick. The porous support 31 is mainly made of natural fibers (eg, Manila hemp, kozo, mitsumata, etc.), synthetic fibers (eg, polyethylene terephthalate, polyvinyl alcohol, polyacrylonitrile, etc.), or semi-synthetic fibers such as rayon. It is made of porous thin paper.

As shown in FIGS. 5 and 7, 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. The heat-sensitive stencil sheet 28 is covered from above 27 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 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 shown in FIG. 7.

The portion of the heat-sensitive stencil sheet 28 that is in close contact with the surface of the impregnated body 27 (the lower surface in FIG. 5) constitutes the 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 33 covering almost the entire lower surface of the stamp portion 3 is adopted.
Could be formed. As a result, positioning when printing is simplified.

The outer peripheral portion of the heat-sensitive stencil sheet 28 is
In order to adhere to the outer peripheral surface of the base member 26, the heat-sensitive stencil sheet 2
8, the adhesive layer 29 may be formed in advance on the outer peripheral side portion, or the adhesive layer 29 may be formed on the outer peripheral surface of the base member 26 in advance, or the heat-sensitive stencil plate Base paper 28
Of the adhesive layer 2 on both the outer peripheral side portion of the base member and the outer peripheral surface of the base member 26.
9 may be formed in advance.

As shown in FIGS. 2 to 4, the outer peripheral holding member 5 includes a peripheral wall portion 34 having a rectangular shape in a plan view, to which the stamp portion main body 4 is adhered, and an upper wall portion 35. Wall 35
And a pair of left and right engaging wall portions 36 protruding from the above 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. 2 to 4, the skirt member 6 has an outer peripheral wall portion 40 having a rectangular shape in a plan view in which the outer peripheral wall portion 34 of the outer peripheral holding member 5 is slidably fitted in the vertical direction.
And an upper wall portion 41 at the upper end thereof, which is located above the upper wall portion 35 of the outer periphery holding member 5, and a predetermined height above the center portion of the upper wall portion 41, and the upper wall portion 41 is grasped. It is composed of a gate-shaped portion 43 to be inserted into the portion 2, and a spring support portion 45 and the like protruding from the center of the upper end of the gate-shaped portion 43.

Below the left and right walls of the gate-shaped portion 43,
A guide hole 44 is formed at a position in the front-rear direction corresponding to the guide hole 18 so as to penetrate the both wall portions. The spring support portion 20 of the grip portion 2 and the skirt member 6
The compression spring 21 for urging the skirt member 6 downward with respect to the grip portion 2 is attached to the spring support portion 45 of
The skirt member 6 has a first position shown in FIGS.
8 and a third position shown in FIG. 8, the skirt member 6 is urged toward the first position by a 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 and detach the protective cap 7 and to position the stamp surface portion 33.

In the first position, the upper wall portion 41 of the skirt member 6 contacts the upper wall portion 35 of the outer circumference holding member 5 so that the lower end of the skirt member 6 projects lower than the stamp surface portion 33, and At the second position, the upper wall portion 41 of the skirt member 6 is
It is located between the upper wall portion 35 of the outer periphery holding member 5 and the lower end of the grip portion 2, the lower end of the skirt member 6 is located at the same level as the stamp face portion 33, and when in the third position, the skirt member. 6
The upper wall portion 41 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. still,
The stroke of the skirt member 6 from the first position to the second position is preferably set to about 5 mm.

The protective cap 7 is made up of the stamp body 4
The outer peripheral wall portion 48 is formed in the same shape as the outer peripheral wall 34 of the outer peripheral holding member 5 in a plan view, and the protective cap 7 is a skirt. The outer peripheral wall portion 40 of the member 6 is fitted in and supported.

As shown in FIGS. 3 and 4, the protective cap 7
In the state in which is mounted, the upper end of the protective cap 7 contacts the lower end of the outer peripheral wall 34, and a small gap is left between the protective cap 7 and the stamp face portion 33. The protective cap 7 has the outer peripheral face of the outer peripheral wall portion 48 and the skirt member 6. It is supported by a frictional force with the inner peripheral surface of the outer peripheral wall portion 40. 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 34. No ink adheres to 7.

As shown in FIG. 10, for example, a large number of perforations (dot pattern perforations) having a pattern consisting of a character string of "ABC" mirror characters and a six-fold rectangular frame surrounding the outer side of the character string are formed on the stamp face portion 33. ) Is formed by a thermal head of a thermal printer (not shown), and a stamp body capable of printing a character string “ABC” that is a mirror image of the pattern of FIG. 10 and a six-fold rectangular frame is formed. Like a stamp with a rubber stamp face, for example, about 1000
The pattern can be printed over and over.
Needless to say, it is possible to pierce by irradiating infrared rays instead of piercing with a thermal head.

When punching the heat-sensitive stencil sheet 28 which constitutes 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 the skirt member 6 is attached as shown in FIGS. As shown in FIG. 3, 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 position on the surface of the paper to be printed is to be changed. By positioning the skirt member 6 at the position of the stamp surface 33 of the stamp portion 3, the grip portion 2 is pressed downward to print as shown in FIG.

Next, the heat punching device 50 will be described. As shown in FIGS. 11 to 15, a heating punching device 50.
Includes a main body frame 51, a keyboard 52 and a liquid crystal display 53 provided on the front portion of the main body frame 51,
Heat punching portion 54 provided at the rear of the body frame 51
And a control unit 55 provided in the main body frame 51
Etc.

The keyboard 52 includes a character / symbol key 56 including a plurality of character keys which also function as a kana key and an alphabet key and a plurality of symbol keys, and various function keys (cursor movement key 57, execution key 58, line feed key 5).
9, confirm / end key 60, cancel key 61, delete key 6
2, a shift key 63, a small letter switch 64, a character type setting switch 65, a punch switch 66, etc.) and a main switch 67 are provided. The liquid crystal display 53
Is capable of displaying a plurality of lines of character strings corresponding to a pattern to be printed by the stamp body 1.

Next, the heating perforation section 54 will be described. As shown in FIGS. 13 to 23, the heating perforation section 54 has a sub-frame 70, a perforation attachment section 71 for detachably attaching the stamp body 1, and the perforation attachment section 71.
The stamping surface portion 33 of the stamp body 1 mounted on is provided with a heating punching mechanism 72 for punching in a dot shape.

The mounting portion 71 for punching will be described. As shown in FIGS. 14 to 17, the right half 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 side wall 73. A pair of front and rear parallel guide members 7 are provided on the upper portion of the subframe 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.

A pair of right and left rollers 81 are provided on the front guide member 78 so as to be able to move a small distance in the front-rear direction in FIG. 16 through elongated holes, 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
16 and 20, a taper surface 84 is formed on the upper surface of the right end portion of the guide bar 83 so that the taper surface 84 is inclined downward to the right.
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,
In 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 by engaging the pair of front and rear guide portions 80.
Is urged rearward by a spring 82 via a pair of rollers 81 to accurately set the front-rear position, the stamp body 1 abuts on the locking portion 85, and the right roller 81 is held by the grip portion 2 The stamp body 1 is engaged with the engaging recess 16 of the stamp body 1.
It is configured so that the left-right position of is accurately set.

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 held in the raised state to the third position shown in FIG.

The heating and 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 and a guide rod 88 extending in the left-right direction over the right end wall 73 and the left end wall 86 of the sub-frame 70 and mounted on the carriage 87. A head switching rod 89 extending in the left-right direction for operating a cam body 91 for switching the position of the thermal head 90 is mounted, and the cam body 91 is in a non-rotatable state.
It is mounted so as to be slidable in the axial direction.

The carriage 87 has a guide rod 88.
The head switching rod 89 is movably supported 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. The carriage 87 includes a cam contact plate 93 and a head heat dissipation plate 94.
Are mounted so as to be vertically swingable by a support shaft 95 oriented in the front-rear direction. The head radiating plate 94 is formed so that the engaging plate 90a bent vertically downward is fitted into the engaging holes 87a formed on both side portions of the carriage 87, and the thermal head 90 is fixed to the upper surface thereof. ing. Further, the head heat dissipation plate 94 is elastically biased upward with respect to the cam contact plate 93 by a spring 97 which is externally mounted on a pin 96 fixed to the head heat dissipation plate 94.

The cam body 91 is formed in an elliptical shape and is brought into contact with the lower surface of the cam contact plate 93. When the head switching rod 89 is rotated to bring the cam body 91 into a horizontal posture, the thermal head 90 is 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. .

At the punching position, as shown in FIG.
As shown in, each engagement plate 90a of the head heat dissipation plate 94 is
Within each of the engagement holes 87a of the carriage 87, the thermal head 90 is not locked to any of the edge portions.
Is to be elastically biased upward together with the head heat dissipation plate 94 only through a predetermined biasing force (elastic force) of the spring 97. Therefore, in this state, the thermal head 90 presses and compresses the stamp face portion 33 with a large pressing force that is not influenced by the elastic force of the impregnated body 27 in the stamp body 1, as described later (see FIG. 22). . At this time, the elastic force (spring force) of the spring 97 is set so that the compression amount of the impregnated body 27 is within the range of 0.1 mm to 0.9 mm when the thickness of the impregnated body 27 is 3 mm, for example. It is desirable to be set. As a result, the thermal head 90 compresses the impregnated body 27 via the spring 97 so that the amount of compression of the impregnated body 27 in the stamp body 1 is always within a certain range.

Further, as shown in FIG. 27, the carriage 8
Each engagement hole 87a in FIG. 7 is formed smaller than in the case of FIG. 18A, and when the thermal head 90 is switched to the punching position, each member provided on the head heat dissipation plate 94 that is biased by the spring 97. The upper surface of the plywood 90a may be restricted from engaging with the upper ends of the engaging holes 87a.
In this case, the thermal head 90 together with the head heat dissipation plate 94 via the biasing force of the spring 97 in a state where the upward movement of the head heat dissipation plate 94 is restricted by the engagement plates 90a and the engagement holes 87a. It is elastically biased upward. Therefore, in this state, the thermal head 9
In the case of 0, as in the case of FIG. 18, the stamp face portion 33 is pressed and compressed with a large pressing force that is not affected by the elastic force of the impregnated body 27 in the stamp body 1. The elastic force (spring force) of the spring 97 at this time is also similar to the above, for example, when the impregnated body 27 has a thickness of 3 mm.
It is desirable to set the compression amount of No. 7 within the range of 0.1 mm to 0.9 mm. Even in such a case, the thermal head 90 is similar to the above, and the stamp body 1
The impregnated body 27 is compressed via the spring 97 so that the amount of compression of the impregnated body 27 in (1) is always within a certain range.

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 stepping motor 100 for driving the carriage 87,
A drive gear 101 meshing with the rack 92 and a reduction gear mechanism 102 that transmits the rotation of the output gear 102 of the output shaft of the stepping motor 100 to the drive gear 101 are attached. Therefore, since the rotational driving force of the stepping motor 100 is decelerated and transmitted to the drive gear 101, the stepping motor 100 can drive and move the carriage 87 in the left-right direction.

The thermal head 90 is the same as the thermal head of a thermal printer. As shown in FIG. 24, for example, 96 heating elements 103 are arranged in a row in the front-back direction in the thermal head 90. It is provided.

Next, a control system including the control unit 110 for driving and controlling the heat punching mechanism 72 and the liquid crystal display 53 will be described. As shown in FIG. 23, the control unit 110 includes a keyboard 52, a thermal head 90, a carriage feed motor 100, a liquid crystal display 53, and two proximity units for detecting the presence or absence of the stamp body 1 and the front-back width. The switches 104 and 105 are connected.

In the case of the present embodiment, the stamp body 1 is of two types, a narrow type shown by a solid line in FIGS. 15 and 19 and a wide type shown by a chain line, and two proximity switches 10 are provided.
4, 105, as shown in FIGS. 13, 15, and 19,
The wide-width stamp body 1 is detected by the proximity switches 104 and 105 attached to the plate piece 106 fixed to the lower surface of the rear guide member 79, and the proximity switch 1
By 04, the narrow stamp type stamp body 1 is detected.

As shown in FIG. 23, the control unit 110
Include a CPU 111, a ROM 112, and a RAM 113.
A CG-ROM 114 for punching, a CG-ROM 115 for display 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 are provided. Are interconnected by a bus 118. Further, the head drive circuit 119 connected to the output interface 117 is connected to the control unit 110.
, The motor drive circuit 120, and the display drive circuit 1
And 21 are provided.

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. The RAM 113 is provided with an input buffer 124 for storing input data, a punching buffer 125 for storing punching data, a shift register 126, and various other counters and registers. In the punching CG-ROM 114, dot pattern data of a large number of characters to be punched is stored in association with the code data, and the display CG-ROM 11 is also stored.
5, display dot pattern data of a large number of characters to be punched are stored in association with code data.

Next, the head drive circuit 119 will be described. As shown in FIG. 24, 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 terminal of each driver 128 includes an output terminal of the inverter 129 connected to the punch stove input terminal 130 on the input side and an output terminal of the data latch circuit 132 connected to the latch signal input terminal 131 on the input side. Each is connected.

Further, each input terminal of the data latch circuit 132 has a clock input terminal 133 and a data input terminal 13.
Output terminals of the shift register 135 whose input terminals are connected to 4 and 4 are respectively connected. The head drive circuit 1
In 19, the shift register 135 stores the punching data in synchronization with the clock signal, and then, when the latch signal is supplied to the data latch circuit 132, the data stored in the shift register 135 corresponds to the corresponding data latch. It is output to the circuit 132 and stored.

At the same time, the data is transferred to each driver 1.
28 is applied. In this state, when a punching pulse signal of logic "0" is applied to the input terminal of the inverter 128 from the strobe input terminal 130 for punching, a signal of logic "1" is output from the output terminal of the inverter 128 and each driver 128 is output. Applied to the input terminal of. Therefore, when the data of the data latch circuit 132 is logic "1",
The output side of the driver 128 becomes logic "0", and the drive current is supplied from the power supply terminal 127 to the heating element 103 corresponding thereto. 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, a punching process for punching a pattern of a character string on the stamp face portion 33 of the stamp body 1 using the heating punching device 50 will be described with reference to the flowcharts of FIGS. 25 and 26. The punching process includes a process executed by the control unit 110 and an operation executed by an operator, and in the figure, reference numeral Si (i = 1, 2,
3) indicates each step.

When the main switch 67 is turned on, the processing is started, first the detection signals from the proximity switches 104 and 105 are read (S1), and then the stamp body 1 is present or not, that is, the stamp body 1 is punched. It is determined whether or not the device is mounted on the mounting unit 71 (S2), and the determination is Yes.
At this time, that is, when the power is turned on while the stamp body 1 is still attached to the perforation mounting portion 71, a message “Please remove the stamp body” is displayed on the liquid crystal display (hereinafter, LCD) 53. Then (S3), the process returns to S1. The above steps S1 to S3 are repeatedly executed until the operator removes the stamp body 1. Door 75
When the stamp body 1 is removed by opening the door, it is determined No in S2.

Next, 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 the stamp body 1 is removed and the determination in S2 is No, the data in the RAM 112 of the heat punching device 50 is cleared, the carriage feed motor 100 is driven, and the carriage 87 is moved to the guide lot 8.
8 Initial setting such as moving to the initial position at the right end is executed, and “Preparing” is displayed on the LCD 53 (S
4). Next, in S5, the input setting of the stamp surface content is executed by operating the keyboard 52. In this input setting, the stamp surface size designation, the format input including the setting of the character size and the character arrangement, and the punching are performed. Input of character string data to the input buffer 124 is executed.

Next, a message "Please attach a stamp body" is displayed on the LCD 53 (S6), and the process waits until the perforation switch 66 is turned ON (S7: No).
During this time, the operator opens the opening / closing door 75, mounts the stamp body 1, and then closes the opening / closing door, that is, the stamp body 1
Is attached to the attachment portion 71 for perforation.

The opening operation of the opening / closing door 75 causes the sector gear 76 to rotate clockwise in FIG. This sector gear 7
Along with the rotation of 6, the head switching rod 89 rotates counterclockwise in the figure via the gear 98 meshing with the sector gear 76. Then, the cam body 91 mounted on the head switching rod 89 is placed in the sideways posture, and the thermal head 90 is released downward together with the head heat dissipation plate 94.

The operator inserts the guide 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.
As shown in FIG. 0, the skirt member 6 has the lower end of the skirt member 3
Ascends to a position higher than 3, and the state is maintained as shown in FIG.

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.
With the rotation of the sector gear 76, the head switching rod 89 rotates clockwise in FIG. Then, the cam body 91 attached to the head switching rod 89 is placed in the upright posture,
The thermal head 90 includes a cam contact plate 93 and a spring 93.
It is rocked upwards through and is arranged at the punching position where the right end of the stamp face portion 33 of the stamp body 1 shown in FIG. 21 is pressed.
In such a perforated state, the engaging plate 90a of the heat dissipation plate 94
18 shows the engagement hole 87 of the carriage 87 in the case shown in FIG.
Since the thermal head 90 is not locked to any of the edge portions within a, the thermal head 90 directly compresses the impregnated body 27 of the stamp body 1 via the spring force of the spring 97, and
In the case shown in FIG. 27, the engagement plate 90a is pressed against the upper end of the engagement hole 87a of the carriage 87 by the spring 93, and thus the thermal head 90 has the engagement plate 90a.
impregnated body 27 of stamp body 1 through the spring force of spring 97 in the state of being regulated by a and the engaging hole 87a.
Is compressed.

The perforation pressure when the thermal head 90 contacts the impregnated body at this time is expressed as follows. FIG. 22
FIG. 4 is an enlarged view of the contact portion. σ = Eε = E (Δt / t) σ: Perforation pressure per unit area E: Elastic coefficient of impregnated body ε: Strain t: Thickness of impregnated body Δt: Compressed amount of impregnated body

Therefore, from this equation, the elastic modulus E of the impregnated body is
Since the thickness t of the impregnated body is a constant regardless of whether the stamp body 1 is a wide type or a narrow type, if the compression amount of the impregnated body 33 is constant, the perforation pressure per unit area is always constant. I know there is.

Here, in the thermal head 90, the stamp face portion 33 of the impregnated body 27 is made by the spring 97 as described above.
However, at this time, the thermal head 90 is urged upward with a sufficient load to compress the impregnated body of the stamp body having the widest stamp surface portion due to the spring force of the spring 97. That is, the urging force of the spring 97 is set to a load that greatly exceeds the elastic force of the stamp body 1, so that the thermal head 90 is not affected by the elastic force of the stamp body 1 and is urged by the spring 97. The stamp body 1 is pressed by the force, and as a result, the compression amount Δt of the impregnated body 27 of the stamp body 1 is always in a constant range based on the relationship with the spring force of the spring 97 set as described above. It becomes the value in.

Therefore, when the thermal head 90 is in the perforated state, the head radiating plate 94 is urged by the spring 97 (in the case of FIG. 18) or the engaging plate 90a of the radiating plate 94 is engaged with the carriage 87. The position of the contact surface of the thermal head 90 with the marking surface portion 33 (when the thermal head 90 marks the impregnated body 27) via the biasing force of the spring 97 in the state of being engaged with the upper end of the dowel 87a (in the case of FIG. 27). The position where the compression amount Δt enters inside the surface portion 33) is
Even if the stamp body 33 is always arranged at a fixed position and abuts against the stamp face portion 33, a sufficient biasing force is applied, so that the stamp body is pressed with a constant compression amount regardless of the size of the impregnated body. . As a result, based on the above equation, the perforating pressure σ when the thermal head 90 contacts the impregnated body 27.
Is a constant value.

Next, when the punching switch 66 is turned on (S7: Yes), the detection signals of the proximity switches 104 and 105 are read (S8), and it is determined whether or not the stamp body 1 is present, that is, the stamp. It is determined whether or not the body 1 is attached to the perforation attachment portion 71 (S9), and when the determination is No, that is, when the operator operates the perforation switch 66 without attaching the stamp body 1, , S10, "Please attach a stamp body" is displayed on the LCD 53, and then the process proceeds to S7. On the other hand, the determination in S9 is Ye
In S, if the stamp body 1 is attached, S11
In step 1, the stamp face size and stamp body 1 set in S5
It is determined whether or not the sizes of the two match. The size of the stamp body 1 means the proximity switches 104 and 105.
It is the width size of the stamp body 1 determined based on the detection signal from.

Next, when the determination in S11 is No, that is,
When the size of the stamp body 1 does not match the set stamp surface size, "Please replace the stamp body" is displayed on the LCD 53 (S12), and the process proceeds to S7. Then, S7 to S12 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, when the determination in S11 is Yes, that is, when the size of the mounted stamp body 1 matches the set stamp face size, the stamp face portion 33 of the stamp body 1 is subjected to the punching process, and the punching process is performed. During this time, the LCD 53 displays "drilling" (S13).

In the punching process, first, 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. Then, at the end of the perforation, the carriage 87 is moved to the position where the thermal head 90 is disengaged leftward from the stamp face portion 33.
Is moved and driven, the thermal head 90 is used to move the stamp surface 3
There is no possibility that ink is leaked by continuously pressing 3.

Next, in S14, it is judged whether or not the punching is finished. When the punching is finished, in S15, "Punching is completed" and "Please remove the stamp body" are displayed on the LCD 53.
Is displayed and the process returns to S1. Seeing the above "Please remove the stamp body", the operator opens the door 7
Open 5 and remove 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. 21, the carriage 87 and the thermal head 90 do not hinder the removal of the stamp body 1.

Next, the operation of the stamp device including the stamp body 1 and the heat punching device 50 described above will be described. With respect to the stamp body 1, a large number of perforations having a desired pattern are formed in advance on the heat-sensitive stencil sheet 28 forming the stamp surface portion 33, the protective cap 7 is removed, and the stamp surface portion 33 is placed on the surface of the paper through the skirt member 6. Of the impregnated body 27 when the grip portion 2 is gripped and pushed downward to press the stamp surface portion 33 against the surface of the sheet,
Since the ink inside oozes out from many perforations, the perforation pattern can be printed on the surface of the paper.

A vertically movable skirt member 6 surrounding the outer peripheral side of the stamp portion 3 is provided.
The skirt member 6 is configured to be movable up and down over a position, a second position, and a third position.
Since the elastic force is applied toward the first position, a desired pattern can be punched in a dod pattern on the stamp face portion 33 while the skirt member 6 is held at the third position.

During printing, the skirt member 6 is held at the first position, the skirt member 6 is set at the position to be printed on the front surface of the paper, the marking surface portion 33 is positioned, and then the grip portion 2 When is pressed, the spring 21 contracts and the skirt member 6 rises to the second position, so that printing can be accurately performed at a desired position. Then, after printing, when the pressing force on the grip portion 2 is released, the returning operation of the skirt member 6 to the first position promotes the peeling of the paper from the stamp surface 33, so that the thin paper can be printed cleanly. can do. However, in the case of printing in a narrow frame on the surface of the paper, it is possible to print with the skirt member 6 held at the second position or the third position by hand.

Further, when not in use, the skirt member 6 can be held in the first position by the urging force of the spring 21, and the stamp unit 1 can be entirely supported by the skirt member 6 to protect the stamp face portion 33. Further, the stamp part 3 is provided with a heat-sensitive stencil sheet 28 that fixedly covers the surface part of the impregnated body 27, and the heat-sensitive stencil sheet 28 extending to the outer peripheral side of the base member 26 inside the skirt member 6 is provided. Since the outer peripheral holding member 5 surrounding the outer peripheral portion is provided, the outer peripheral portion of the heat-sensitive stencil sheet 28 extending to the outer peripheral side of the base member 26 can be prevented from being damaged by the skirt member 6, and the ink from the impregnated body 27 can be prevented. It can be prevented from flowing out.

Further, since the protective cap 7 is provided to cover the stamp face portion 33 of the stamp portion 3 and is detachably attached to the stamp portion 3, the protective cap 7 allows the stamp face portion when not in use. It is possible to prevent damage of 33 and adhesion of dust, and to prevent printing at a position where printing should not be performed due to an erroneous operation. Regarding the heating punching device 50, when the stamp body 1 is mounted on the mounting portion 71 for punching,
The stamp body 1 is supported by a pair of front and rear guide portions that are engaged with a pair of front and rear guide grooves 15, and is pressed rearward by a pair of rollers 81 to accurately set the front-back direction position of the stamp body 1. To be done.

The stamp body 1 is locked by the locking portion 85 and also locked at the ends of the pair of front and rear guide grooves 15, so that the lateral position is accurately set. Moreover,
Since one roller 81 is engaged with the engagement concave portion 16 of the stamp body 1, the position of the stamp body 1 does not shift during perforation.

Until the opening / closing door 75 is closed by interlocking the opening / closing door 75 and the cam body 91 through the sector gear 76, the gear 98, and the head switching rod 89, mounting the stamp body 1 on the perforation mounting portion 71, and closing the opening / closing door 75. Since the thermal head 90 is configured to release downward, the thermal head 90 does not damage the stamp surface portion 33 when the stamp body 1 is mounted, and the thermal head 90 is not removed after the completion of perforation. Carriage 87 until it retreats from the stamp surface 33 to the left
Since the thermal head 90 does not continue to press the stamp face portion 33, the ink can be prevented from leaking from the stamp face portion 33. When the opening / closing door 75 is opened to remove the stamp body 1 after punching, the thermal head 9
Since 0 is released downward, the stamp face portion 33 is not damaged even when the stamp body 1 is taken out.

When the stamp body 1 is mounted on the perforation mounting portion 71, the skirt member 6 is switched to the most raised third position by the guide bar 83. , Does not get in the way of drilling. Since the width size of the stamp body 1 is detected by the proximity switches 104 and 105, the size of the stamp body 1 is not mistaken and a character string that does not match the size of the stamp face portion 33 is not punched. Also, stamp body 1
Is supported by the engagement between the guide member 78 and the grip portion 2 in the perforation mounting portion 71. Therefore, if the grip portion 2 has the same configuration, the perforation mounting portion 71 will have a narrow stamp body. 1 and a wide stamp body 1 can be mounted, so that the versatility is excellent.

In the above embodiment, the impregnated body 27 and the heat-sensitive stencil sheet 28 correspond to the stencil printing plate, the keyboard 52 corresponds to the input means, the heating perforation mechanism 72 corresponds to the perforation means, and the control unit. 110 corresponds to the control means,
The RAM 113 corresponds to the data storage means.

As described in detail above, in the stamp apparatus according to the present embodiment, when the thermal head 90 is in the punching state, the biasing force of the spring 97 (in the case of FIG. 18) or the engagement of the heat sink 94 is used. Through the biasing force of the spring 97 (in the case of FIG. 27) when the plywood 90a is engaged with the upper end of the engagement hole 87a of the carriage 87 (in the case of FIG. 27), the thermal head 90 has entered the inside of the stamp surface portion 33 of the impregnated body 27. The position is constantly arranged at a position determined by a constant compression amount Δt, and the thermal head 90 is not affected by the size and elastic force of the stamp body 1 and the thermal head 90 is impregnated into the impregnation body 27.
Since the perforation pressure σ when abutting against a constant value is set to a constant value, it is possible to perforate a pattern such as a desired character string at a constant and appropriate perforation pressure, so that the imprinted characters, etc. can be blurred. You can create a stamp that will not be drowned.

The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various improvements and modifications can be made without departing from the gist of the present invention. For example, the perforation mounting portion 71 is configured to removably mount the stamp body 1 from the right side, but may be configured to removably mount the stamp body 1 from above. Further, the heating punching mechanism 72 is configured to punch while moving the thermal head 90 via the carriage 87 while holding the stamp body 1 at a predetermined position.
0 may be fixedly provided, and the stamp body 1 may be moved and punched.

Further, a solenoid actuator may be provided instead of the cam body 91, and the position of the thermal head 90 may be switched by the actuator. Further, instead of the rack 92, the drive gear 101, and the reduction gear mechanism 102, the carriage 87 may be moved and driven in the left-right direction via a wire and a pulley. Instead of the impregnating body 27, an ink body made of a high-viscosity ink mass may be used, and the ink body may be mounted in the recess 25 and raised in the same shape as the impregnating body 27.

[0085]

As described above, according to the stamping device of the present invention, the stamping device constituted by the stencil printing plate is always desired to have a constant and appropriate punching pressure regardless of the size of the stamping surface. It is possible to provide a stamp device capable of forming a stamp in which a pattern such as a character string can be punched, and thus a stamped character or the like does not bleed or blur.

[Brief description of drawings]

FIG. 1 is a perspective view of a stamp body of a stamp device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a stamp body.

FIG. 3 is a vertical sectional front view of a stamp body.

FIG. 4 is a vertical sectional side view of a stamp body.

FIG. 5 is an enlarged vertical sectional front view of the stamp body of the stamp body.

FIG. 6 is an enlarged sectional view of a heat-sensitive stencil sheet of a stamp body.

FIG. 7 is a perspective view illustrating a method of manufacturing a stamp portion main body.

FIG. 8 is a vertical cross-sectional front view of the stamp body when the skirt member is at the third position.

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

FIG. 10 is a diagram showing an example of a pattern for punching a stamp surface of a stamp body.

FIG. 11 is a perspective view of a heat punching device of the stamp device.

FIG. 12 is a perspective view of a heat punching device and a stamp body.

FIG. 13 is a plan view of the heating punching device.

FIG. 14 is a partially cutaway front view of the heat punching device.

FIG. 15 is a partially cutaway vertical side view of the heating punching device.

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

FIG. 17 is a perspective view of an essential part of a heating punching unit of the heating punching device.

FIG. 18 is an exploded perspective view of a heating and punching mechanism.

FIG. 19 is a side view of a main portion of a heating punching unit of the heating punching device.

FIG. 20 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. 21 is a vertical cross-sectional front view of the stamp body and the heating punching portion after being mounted on the mounting portion for punching.

FIG. 22 is an enlarged view of the contact portion where the thermal head contacts the impregnated body.

FIG. 23 is a block diagram of a control system of the stamp device.

FIG. 24 is an electric circuit diagram of a head drive circuit.

FIG. 25 is a part of a flowchart of punching processing by the heating punching device.

FIG. 26 is the rest of the flowchart of the punching process by the heating punching device.

FIG. 27 is an exploded perspective view showing another example of the heat punching mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 stamp body 2 gripping part 3 stamp part 4 stamp part main body 5 outer peripheral holding member 26 base member 27 impregnating body 28 heat-sensitive stencil sheet 33 stamp face part 50 heating punching device 52 keyboard 71 punching mounting part 72 heating punching mechanism 110 control unit 111 CPU 112 ROM 113 RAM 114 CG-ROM for punching

Claims (2)

[Claims] 1. A heat-sensitive stencil that is a stencil printing plate fixed to a grip portion with or without another member, and fixedly covers an ink body and the surface of the ink body to form a stamp face portion. A stamp body composed of a stencil printing plate containing a base paper, having a predetermined elastic force and thickness, and receiving input data from a data storage means for storing input data input from input means for inputting characters and symbols. ,
In a stamping device having a heating perforation device having a control means for driving and controlling a perforation means including a thermal head for perforating the stamp surface of a stamp body mounted on a perforation mounting part in a dot shape, the thermal head is a predetermined A stamping device comprising a biasing member that biases upward by force and positions the thermal head at a predetermined position regardless of the elastic force of the stamp body. 2. The stamp device according to claim 1, further comprising a regulating member that regulates the thermal head urged by the urging member to a predetermined position.