JPH0858294A - Heating and printing apparatus - Google Patents

Abstract

PURPOSE: To provide a heating and printing apparatus which can display a menu tag, a nameplate, etc., by a heating print, and is simple to handle and easy to regulate temperature. CONSTITUTION: Printing units 10 each of which engraves a character, a graphic form, etc., in an uneven surface on the surface, and is formed of a substance having high relative magnetic permeability and a printable hardness are detachably arranged in a frame 20. A heating unit 30 which takes the unit 20 in a magnetic field area and induces an eddy current in the unit itself by alternating magnetic field generated from a heating coil 33 is arranged, and the heated unit is brought into contact with a woody material to be heated and printed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for branding characters, figures, etc. on wood materials, and more specifically, for easily marking characters, figures, etc. on wood materials such as menu bills, nameplates and signboards. The purpose is to provide an expressive means that is rich in taste.

[0002]

2. Description of the Related Art Conventionally, menu bills, nameplates, billboards, etc. are made by writing on a plate material with ink, paint, etc. or engraving on a plastic plate, but the expression means is obsolete, There is a lack of novelty in design.
Therefore, instead of this, the present inventor has focused on an expression means for branding a wooden board.

On the other hand, although the purpose is different from that of the present invention, an automatic branding device (actually 60-19496) is used as a conventional branding device.
No.), the outline is intended to display the name of the place of origin, the producer, etc. on wood and wooden processed products, and means to convey the object to be branded and to the branding position by the means for carrying. It consists of a means to form a mark on the stamped object and a means to heat the stamping die. The conveying means conveys the stamped object to the branding position by intermittent driving and once stops it, then drives it again. Is moved to the discharge direction, and the means for forming the above-mentioned burn marks are the descending position for press-contacting the stamp with the object to be stamped to form the burn marks, and the heating means for heating the stamp. It is composed of a marking die lifting mechanism that raises and lowers the marking die to and from the raised position.

However, in the automatic branding apparatus described above, (a) the heating means is a gas burner, and when the stamp die rises, the stamper is heated by applying the gas burner, and the plate material is heated by the heat retaining force. It is extremely difficult to handle as it deals with flames. (B) In a gas burner, the branding temperature is not constant, and the degree of charring of the branding varies depending on the outside air temperature and heating time, making it difficult to adjust clear printing and blurring. (C) Further, a gas source and an igniter are required in addition to the mechanism for press-contacting the heated impression die, which makes the device complicated and large in size.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to develop a branding device which can be easily handled and whose temperature can be reliably adjusted.

[0006]

DISCLOSURE OF THE INVENTION According to the branding apparatus of the present invention, a printing body formed by engraving characters, figures, etc. on an uneven surface and forming a material having a high relative permeability and a printable hardness is a frame body. A heating device that is removably arranged on the printed material, takes in the printed material in a magnetic field region, and causes an eddy current in the printed material itself by an alternating magnetic field; It is characterized by.

In the heating device, it is preferable that heating coils are separately provided corresponding to a plurality of printed bodies, and the temperature can be freely adjusted for each of the separately provided heating coils.

Further, a frame body incorporating the printing body and a heating device are housed in an upper frame, a fixing base for stopping the wood material is arranged below, and a link intersecting at the center is passed between the upper frame and the fixing base. It is preferable to dispose an elevating mechanism which pivotally attaches one end thereof to a fixed shaft and a slide groove is provided at the other end to dispose a movable shaft which can be slidably moved to move a printing body up and down in parallel.

[0009]

When the heating device is energized, an alternating magnetic field is generated in the heating coil, and an eddy current is induced in the printing body formed of a substance having a high relative magnetic permeability existing in the magnetic field region. Then, the printed body itself generates heat, and when the heated printed body comes into contact with the wood material, the wood material is carbonized and the characters and figures engraved on the uneven surface of the surface are stamped.

At this time, if heating coils of a heating device are separately provided for a plurality of printing bodies, it becomes possible to adjust the temperature of each of the heating coils so that the printing density, blurring, and the like of each printing body are changed. Can be given.

Further, when a frame that incorporates a printing body, an upper frame that houses a heating device, and a base that stops the wood material are passed through a link that intersects with a fixed base, and a moving shaft having a slide groove is slid. ,
The printed body can be moved up and down in parallel, and the printed body comes into contact with the wood material in parallel, enabling clear and accurate branding.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the branding device of the present invention will be described below with reference to the drawings. In the device of the present invention, a printing body 10 for branding a target wood material and the printing bodies 10 are fixed in a fixed arrangement. A frame body 20 for heating, a heating part 30 for heating the print body 10, and an upper frame 4 containing the frame body 20 and the heating part 30.
0 and a fixing base 50 for fixing the wood material downward, and an elevating mechanism 60 for pressing the printing body 10 incorporated in the frame 20 against the wood material.

First, as shown in FIG. 2, the printing body 10 is made of a material having a high relative permeability and a printable hardness, for example, in order to make the electromagnetic induction by the heating unit 30 described later effective. , Iron, magnetic stainless steel, etc. Iron has a relative magnetic permeability of 100 μs and a current penetration depth of 0.11.
mm, the skin resistance is 8.9 × 10 ⁻⁴ Ω, and 430 stainless steel has a relative permeability of 100 μs, a current penetration depth of 0.28 mm, and a skin resistance of 21.0 × 10 ⁻⁴ Ω. It has a hardness suitable for electromagnetic induction and printable as a metal body. Printing for forming a menu board, nameplate, signboard, etc. on the surface 10a of the printing body 10 by an uneven surface representing characters such as hiragana, katakana, romaji, kanji, etc., figures of animals, plants, etc. Engrave. Also, the back side 10b of the printing body 10 is
In order to make the electromagnetic induction of the heating section effectively act on the printing body 10, it is desirable to form it on a flat surface that can be brought into close contact with the plate 31 described later. Further, the size of the printing body 10 is preferably standardized to a fixed size in order to be recombinable in relation to the frame body 20, and the thickness is determined in consideration of the heat storage amount.

Next, the frame body 20 is for fixing the above-mentioned printing bodies 10 at a constant interval and arrangement, and is preferably formed of a non-magnetic material such as aluminum or ceramics so as to avoid electromagnetic induction, and on the side surface. A locking portion 21 for attachment and detachment is provided. The locking portion 21 is provided with a spherical projection that can be freely inserted and taken out by a compression spring, and a fitting groove is formed in one side wall of the locking portion 21, so that the printing body 10 is detachably formed.

Further, the heating unit 30 is intended to directly generate heat by exerting an electromagnetic induction effect on the printing body 10 formed of a material having a high relative magnetic permeability.
A plate 31 made of an insulating material such as ceramics is arranged at a distance close to 0, and a temperature sensor 32 and a heating coil 33 are arranged on the back side of the plate 31 where the printing body 10 is arranged. The heating coil 33 may be a relatively large one, but in order to adjust the thermal efficiency and the density of the branding, the printing body 10 can be adjusted.
It is desirable that a plurality of pieces are provided in correspondence with the number of (see FIG. 1).

An electric circuit 34 is connected to the heating coil 33, and the electric circuit 34 inputs an alternating current and supplies a direct current to the control circuit and the power conversion circuit 34.
a, and a control circuit 34b for controlling the transmission circuit,
An oscillation circuit 34c that drives the power conversion circuit, a power conversion circuit 34d that includes a resonance capacitor and a transistor and applies a high-frequency current to the heating coil, and a geodetic circuit 34e that communicates with the temperature sensor of the heating coil to control the temperature ( (See FIG. 5).

At this time, when a plurality of heating coils 33 are provided corresponding to the printing body 10, as shown in FIG. 6, a transistor driven by a signal from the transmitting circuit 34c,
A resonant capacitor whose capacity is determined to match the driving frequency of the heating coil and a diode that protects the transistor from the high-voltage back electromotive force generated during switching are associated with the heating coil to form a power conversion circuit. The control circuit is
The period duty ratio of the switching time is set for each transistor of the transmission circuit and the power conversion circuit.

The frame body 20 incorporating the printing body 10 and the heating section 30 are housed in an upper frame 40, which is then fixed to a fixed base 5 which will be described later.
An elevating mechanism 60 is provided between the upper and lower sides of the upper frame 40 to raise and lower the upper frame 40, a handle 41 is arranged in the front part of the upper frame 40, and a rotary shaft 42 for opening the upper frame 40 is arranged in the rear part (see FIG. 3). .

Next, the fixed table 50 is attached to the target menu.
For fixing wooden materials such as bills, on the table 51,
The horizontal frames 51a and 51b are movably arranged along the slide grooves 53a and 53b and fixed by screws 52a and 52b, and the vertical frame 54 is movably arranged along the slide grooves 56a and 56b, and the screw 55a is provided. , 55b so that they can be fixed (see FIG. 4).

Further, the lifting mechanism 60, as shown in FIG.
The printing body 1 assembled in the heating unit 30 and the frame 20 arranged above
0 is a moving mechanism for abutting on the fixed base 50 arranged below, and the central shaft 6 is attached to one side of the upper frame 40 and the fixed base 50.
The links 61a and 61b intersecting at 2 are passed, one end of which is pivotally attached to the fixed shafts 64a and 64b, and the other end thereof has a return spring 67.
Sliding grooves 66a and 66b provided with a and 67b are formed, and the moving shafts 65a and 65b are slid so that the printing body 10 is vertically moved in parallel.

Next, the operation of this embodiment will be described. The target of the branding device of the present invention may be any one that allows the printing body 10 to brand the target in a heated state, but in general, it is a wood material such as wood, paper, fiber, etc. Means the item marked with, specifically, as described above, the menu label,
Refers to the nameplate, signboard, forehead, etc. Here, a menu bill will be described as an example.

The plate-shaped menu bill S is cut into a predetermined size, and the surface of the bill is cut to prepare a new wood grain. On the other hand, the printing body 10 to be printed on the menu bill is prepared. To
Hiragana, katakana 48 characters, kanji, etc. are formed and aligned in a mold of a certain size.

Next, the printing bodies 10 are selected and arranged in order in the frame of the frame body 20, for example, "Udon 500" is arranged in four boxes. At this time, if the print body 10 is inserted into the frame body 20, the side wall presses the locking portion 21, and when the print body 10 is fitted into the fitting groove of the side wall, the compression spring works to attach the print body 10 to the upper frame 40.

On the other hand, in the menu bill S, the horizontal frames 51a and 51b of the fixing base 50 are moved along the slide grooves 53a and 53b, and fixing screws 52a and 52b are arranged.
The vertical frame 54 is also moved along the slide grooves 56a and 56b, and the fixing screws 55a and 55b are fixed to positions corresponding to the dimensions of the menu bill.

Next, when the input switch of the heating unit 30 is pressed, a direct current flows from the power supply circuit 34a to the control circuit 34b, the control circuit 34b controls the transmission circuit 34c, and the control circuit 34c controls the transmission circuit 34c. Power conversion circuit 34
d is driven and a high frequency current is passed through the heating coil 33. Then, a magnetic field is generated in the vertical direction of the heating coil 33, and the printing body 10 formed of a substance having a high relative magnetic permeability in the magnetic field region.
An eddy current is induced inside the printed body 10 and the printed body 10 itself generates heat due to the eddy current I and the resistance R of the printed body 10. For example, when the printed body 10 is iron, the penetration depth of the magnetic field is 0.11 mm, The skin resistance becomes 8.9 × 10 ⁻⁴ Ω, and the I ² R jule heat is directly generated on the printing body 10 itself, and the heating is most efficient.

Then, when the handle 41 is grasped and the upper frame 40 is lowered, the moving shafts 65 of the intersecting links 61a and 61b are moved.
The a and 65b move along the slide grooves 66a and 66b, the entire upper frame 40 with the print body 10 at the tip falls in parallel, and the print body 10 contacts the wood material at the lowermost end. Then, the heat of the heated printing body 10 carbonizes the abutting portion of the wood-based material, leaving a burnt mark such as the character or figure, so-called branding, and a character such as a simple branding is printed on the new skin,
The novelty in design is expressed.

At this time, by adjusting the current flowing through the heating coil 33, the strength of the eddy current generated in the printing body 10 can be adjusted, so that the amount of heat generated can be adjusted, and the type of wood material, the degree of drying, etc. According to the application, clear printing is possible, and blurring or change in shading can be provided according to the application.

Further, the heating coil 33 is connected to the plurality of printing bodies 10.
When the duty ratio of the signal for driving each coil is controlled separately, the average current flowing through the coil increases with an increase in the duty ratio. The amount of heat generated can be changed, and, for example, the concentration can be reduced from the top to the bottom, or only the display of the list price can be reduced.

After the marking of one piece of wood material is completed, it is removed from the frame of the fixing base 50, the next new wood material is placed in the frame of the fixing base 50, and the same operation as above is repeated to continue. Can be processed as desired. Further, when the characters and figures are changed and different menu bills are branded, the printing body 10 may be exchanged and the above operation may be repeated, and the replacement work is easy.

Although the present embodiment has been described by taking the menu bill as an example, it has a wide range of applications such as being able to brand a poem or haiku on a nameplate, a signboard, or a frame plate.

[0031]

The device of the present invention based on the above configuration and operation is capable of printing on a menu bill, a nameplate, etc., and provides a kind of branding printing means, which makes these products novel in design. It has an excellent effect that it can be evoked. At that time, it is a safe and easy-to-handle device that does not use flames, and because the printing body itself is induction heated, it has good thermal efficiency and the sharpness and shade can be adjusted, and the printing body can be easily replaced. It also has extremely excellent functionality.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view of a device of the present invention.

FIG. 2 is a perspective view of a frame body incorporating a printing body of the apparatus of the present invention.

FIG. 3 is a partial side view of the device of the present invention.

FIG. 4 is a partial plan view of a fixed base portion of the device of the present invention.

FIG. 5 is a circuit diagram showing an electric circuit of the device of the present invention.

FIG. 6 is a circuit diagram showing a power conversion circuit section of an electric circuit of the device of the present invention.

[Explanation of symbols]

 10 Printed body 20 Frame body 30 Heating part 31 Plate 32 Temperature sensor 33 Heating coil 34 Electric circuit 40 Upper frame 50 Fixed base 60 Lifting mechanism

Claims (3)

[Claims] 1. A printing body formed by engraving characters, figures, etc. on a concavo-convex surface and a printing body formed of a substance having a high relative magnetic permeability and a printable hardness is removably arranged on a frame body, and the printing body is formed. Is a magnetic printing apparatus, which is provided with a heating device for inducing an eddy current in the printed material itself by an alternating magnetic field generated in the heating coil by taking in the magnetic field area, and the heated printed material is brought into contact with the wood material for branding. apparatus. 2. A power supply circuit which inputs an alternating current and sends a direct current to the control circuit and the power supply conversion circuit, a control circuit which controls the transmission circuit, a transmission circuit which drives the power conversion circuit, and a resonance capacitor. A power conversion circuit including a transistor for flowing a high-frequency current through a heating coil, and a geodetic circuit that communicates with a temperature sensor of the heating coil and a temperature control circuit to form an electric circuit to form a heating unit, and the control circuit includes: The period duty ratio of the switching time is set for each transistor of the transmission circuit and the power conversion circuit, and heating coils are separately installed for multiple printed bodies. The branding device according to claim 1, wherein the heating device is formed so that the temperature can be adjusted freely. 3. A frame body incorporating a printing body and a heating device are housed in an upper frame, a fixing base for stopping a wood material is arranged below, and a link intersecting at the center is passed between the upper frame and the fixing base. 3. An elevating mechanism for pivotally attaching one end thereof to a fixed shaft and piercing a slide groove at the other end to vertically move a slidable print body in parallel. The branding device described in the item.