JP3605151B2 - Branding device - Google Patents

Description

[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for imprinting characters, figures, etc. on wood materials, and more particularly, to express characters and figures, etc. on wood materials such as menu tags, nameplates, signs, etc. in a convenient and rich manner. It does not provide a means.
[0002]
[Prior art]
Conventionally, menu tags, nameplates, signs, and the like have been created by writing on a board with black ink, paint, or engraving on a plastic board, but the means of expression has become obsolete, and the novelty of the design has become obsolete. There is a tendency to lack.
Therefore, the present inventor has paid attention to an expression means for branding a wooden board instead.
[0003]
On the other hand, although the purpose is different from the present invention, there is an automatic branding apparatus (Japanese Utility Model Application Laid-Open No. 60-19496) as a conventional branding apparatus. It is intended to perform a display, and comprises means for transporting an object to be branded, means for forming a stitch on the object to be branded which has been transported to the branding position by the transporting means, and means for heating the stamping die. The conveying means intermittently drives the conveyed object to the imprinting position, temporarily stops, after the end of the imprinting, starts the drive again and transports it in the discharge direction. It is provided with a stamping die elevating mechanism for elevating and lowering the stamp between a descending position for pressing the object to form a seam and an ascending position for heating the stamp by means for heating the stamp.
[0004]
However, in the automatic branding apparatus, (a) the heating means is a gas burner, and when the mold is raised, the gas burner is applied to heat the mold and the plate is to be branded by its heat retention. It is extremely difficult to handle as handling the flame. (B) In the gas burner, the branding temperature is not constant, and the degree of burning of the branding varies depending on the outside air temperature and the heating time, so that it is difficult to adjust clear printing and blurring. (C) In addition, a gas source and an ignition device are required in addition to the mechanism for pressing the heated stamping die, so that the device is complicated and the size is increased.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and has as its object to develop a branding device that is easy to handle and that can reliably control temperature.
[0006]
[Means for Solving the Problems]
The marking device according to the present invention is characterized in that characters, figures, and the like are engraved on an uneven surface, and printing bodies made of a substance having high relative permeability and printable hardness are removably arranged on a frame body. A heating device is provided which takes the character into a magnetic field region and causes an eddy current in the print body itself by an alternating magnetic field generated in the heating coil. The heating device includes a power supply circuit that inputs an AC current and sends a DC current to a control circuit and a current conversion circuit, a control circuit that controls a transmission circuit, a transmission circuit that drives a power conversion circuit, a resonance capacitor and a transistor. A heating unit is formed by arranging an electric circuit from a power conversion circuit for passing a high-frequency current through the heating coil, and a detection circuit communicating with the temperature sensor of the heating coil and controlling the temperature, and forming a heating unit. And a switching duty cycle ratio for each transistor of the power conversion circuit, and a heating device is formed so that the temperature can be adjusted for each heating coil that is divided into heating coils corresponding to a plurality of prints. Then, the heated printed body is brought into contact with the wooden material to perform branding.
[0007]
It is preferable that the heating device is provided with a plurality of heating coils corresponding to a plurality of printing bodies, and the temperature can be adjusted for each of the separately provided heating coils.
[0008]
In addition, the frame body incorporating the printing body and the heating device are housed in the upper frame, the fixing base for stopping the wood material is disposed below, and a link crossing the center at the center of the upper frame and the fixing base is passed. It is preferable to provide a lifting mechanism that pivots on a fixed shaft, a slide groove is provided at the other end, and a slidable moving shaft is provided, and a printing body is moved up and down in parallel.
[0009]
[Action]
When power is input to the heating device, an alternating magnetic field is generated in the heating coil, and an eddy current is induced in a printed body formed of a substance having a high relative permeability in the magnetic field region, and the printed body is formed by the eddy current and the resistance of the printed body. When the printed body itself generates heat and comes into contact with the wooden material, the wooden material is carbonized, and the characters and figures engraved on the uneven surface are branded.
[0010]
At this time, if the heating coils of the heating device are separately provided for a plurality of printing bodies, the temperature can be adjusted for each of the separately provided heating coils, and a change in shading, shading, etc. can be given for each printing body. it can.
[0011]
In addition, when the frame that incorporates the printing body, the upper frame that houses the heating device, and the link that intersects the fixed table with the base that stops the wood material are passed, and the moving shaft with the slide groove is slid, the printed body is slid. Can be moved up and down in parallel, and the printed body comes into contact with the wood material in parallel, and clear and accurate branding can be performed.
[0012]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The present invention provides a printing device 10 for printing on a target wooden material and a frame for fixing the printing device 10 in a fixed arrangement. Body 20, a heating unit 30 for heating the printed body 10, an upper frame 40 containing the frame body 20 and the heating unit 30, and a fixing table 50 for fixing a wooden material below, An elevating mechanism 60 for pressing the printed body 10 incorporated in the body 20 against a wooden material.
[0013]
First, as shown in FIG. 2, the printed body 10 is made of a material having a high relative magnetic permeability and a printable hardness, for example, iron, in order to make the material effective for electromagnetic induction by a heating unit 30 described later. It is made of magnetic stainless steel. Iron has a relative magnetic permeability of 100 μs, a current penetration depth of 0.11 mm, and a skin resistance of 8.9 × 10 ⁻⁴ Ω. 430 stainless steel has a relative magnetic permeability of 100 μs and a current penetration depth of 100 μs. It is 0.28 mm, has a skin resistance of 21.0 × 10 ⁻⁴ Ω, is suitable for electromagnetic induction, and has a hardness that allows printing as a metal body.
On the surface 10a of the printing body 10, a printing which constitutes a menu board, a nameplate, a signboard, etc. by an uneven surface representing characters such as hiragana, katakana, romaji, kanji, figures of animals, plants and the like. Is engraved.
The back side 10b of the printed body 10 is desirably formed on a flat surface that can be in close contact with a plate 31 described later in order to effectively use the electromagnetic induction of the heating unit on the printed body 10.
Further, the dimensions of the printing body 10 are desirably standardized to a certain size in order to be freely interchangeable in relation to the frame 20, and the thickness is determined in consideration of the heat storage amount.
[0014]
Next, the frame body 20 is for fixing the printing body 10 at a fixed interval and arrangement, and is preferably formed of nonmagnetic aluminum, ceramics or the like so as to avoid electromagnetic induction. An engaging portion 21 is provided.
The locking portion 21 has a spherical projection protruding and retractable by a compression spring, and a fitting groove is formed in one side wall to form the printing body 10 detachably.
[0015]
Further, the heating section 30 is to apply electromagnetic induction to the printed body 10 made of a substance having a high relative magnetic permeability to directly generate heat in the printed body 10. A plate 31 made of an insulating material such as the above is disposed, and a temperature sensor 32 and a heating coil 33 are disposed on the back side of the plate 31 at a position where the printed body 10 is disposed. The heating coil 33 may be a relatively large one, but it is desirable that a plurality of heating coils 33 be provided in accordance with the number of the printing bodies 10 in order to adjust the thermal efficiency and the density of the branding (FIG. 1).
[0016]
An electric circuit 34 is connected to the heating coil 33, and the electric circuit 34 controls a power supply circuit 34a for inputting an AC current and transmitting a DC current to a control circuit and a power supply conversion circuit, and a transmission circuit. A control circuit 34b, a transmission circuit 34c for driving a power conversion circuit, a power conversion circuit 34d including a resonance capacitor and a transistor for flowing a high-frequency current to the heating coil, and a ground detection circuit for communicating with a temperature sensor of the heating coil to manage the temperature. 34e (see FIG. 5).
[0017]
At this time, when a plurality of heating coils 33 are provided in correspondence with the printing body 10, as shown in FIG. 6, a transistor driven by a signal from the transmission circuit 34c and a capacitor so as to match the driving frequency of the heating coil. And a diode for protecting the transistor from high-voltage back electromotive force generated at the time of switching corresponds to a heating coil to form a power conversion circuit. The control circuit sets the cycle duty ratio of the switching time for each transistor of the transmission circuit and the power conversion circuit.
[0018]
The frame body 20 incorporating the printing body 10 and the heating unit 30 are housed in an upper frame 40, which is raised and lowered by providing an elevating mechanism 60 between a fixed table 50 described below, and A handle 41 is disposed on the portion, and a rotating shaft 42 for opening the upper frame 40 is disposed on the rear portion (see FIG. 3).
[0019]
Next, the fixing table 50 is for fixing a wooden material such as a menu tag to be processed. The horizontal frames 51a and 51b are movably arranged on the table 51 along the slide grooves 53a and 53b. The vertical frame 54 is movably arranged along the slide grooves 56a and 56b, and can be fixed by the screws 55a and 55b (see FIG. 4).
[0020]
Further, as shown in FIG. 3, the elevating mechanism 60 is a moving mechanism for bringing the upper heating unit 30 and the print body 10 incorporated in the frame 20 into contact with the lower fixed base 50, Links 61a and 61b intersecting with the upper frame 40 and one side of the fixed base 50 at the central axis 62 are passed, one end of which is pivotally connected to the fixed shafts 64a and 64b, and the other end of which is via return springs 67a and 67b. The lift mechanism is configured such that the slide grooves 66a and 66b provided are formed and the print shafts 10 are moved up and down in parallel by sliding the moving shafts 65a and 65b.
[0021]
Next, the operation of the present embodiment will be described. The object of the branding apparatus of the present invention is not particularly limited as long as the printing body 10 can brand the target in a heated state. In general, wood, paper, fiber, and other wood materials are shaded after being burned by heating. , And specifically refers to a menu bill, a nameplate, a signboard, an amount, etc. as described above. Here, a menu tag will be described as an example.
[0022]
The plate-shaped menu tag S is cut into a predetermined size, and a surface having a new grain embossed by planing the surface is prepared. On the other hand, a print body 10 to be printed on the menu tag is hiragana. , 48 katakana characters, kanji, etc., and arrange them in a mold of a certain size.
[0023]
Next, the printing body 10 is selected and arranged in order in the frame of the frame body 20, for example, "Udon 500" is arranged in four squares. At this time, when 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 acts to mount the print body 10 on the upper frame 40.
[0024]
On the other hand, the menu card S moves the horizontal frames 51a, 51b of the fixing base 50 along the slide grooves 53a, 53b, and arranges fixing screws 52a, 52b. Similarly, the vertical frame 54 also has the slide grooves 56a. , 56b, and fix the fixing screws 55a, 55b at positions corresponding to the dimensions of the menu card, respectively.
[0025]
Next, when the input switch of the heating unit 30 is pressed, a DC current flows from the power supply circuit 34a to the control circuit 34b, and the control circuit 34b controls the transmission circuit 34c, and the power conversion circuit is controlled by the transmission circuit 34c. 34d is driven to supply a high-frequency current to the heating coil 33. Then, a magnetic field is generated in the vertical direction of the heating coil 33, causing an eddy current in the printed body 10 formed of a substance having a high relative magnetic permeability in the magnetic field region. The printed body 10 itself generates heat with R. For example, when the printed body 10 is made of iron, the penetration depth of the magnetic field is 0.11 mm, the skin resistance is 8.9 × 10 ⁻⁴ Ω, and the I ² R Joule heat is generated directly in the print body 10 itself, and the most efficient heating is achieved.
[0026]
When the handle 41 is grasped and the upper frame 40 is lowered, the moving shafts 65a and 65b of the intersecting links 61a and 61b move along the slide grooves 66a and 66b, and the upper frame 40 having the print body 10 as the leading end is moved. The whole descends in parallel, and the printed body 10 contacts the wood at the lowermost end. Then, the heat of the heated printing body 10 carbonizes the abutting portion of the wooden material, leaving a scorch mark such as the font or figure, so-called branding, and a new wood skin is marked with a simple branding letter, etc. The novelty of is expressed.
[0027]
At this time, if the current flowing through the heating coil 33 is adjusted, the intensity of the eddy current generated in the printing body 10 can be adjusted, so that the amount of generated heat can be adjusted, and the amount of heat generated can be adjusted according to the type of wood material and the degree of drying. In addition, clear printing is possible, and it is also possible to have a change in shading or shading according to the application.
[0028]
Further, when the heating coils 33 are separately provided in correspondence with the plurality of printing bodies 10 and the duty ratio of the signal for driving each coil is controlled, the average current flowing through the coils with the increase in the duty ratio is obtained. The amount of heat generated by the printing body 10 can be changed for each square because the density increases, for example, the density is reduced from top to bottom, or the change in each square such as only the display of the fixed price is lightened. Can be held.
[0029]
When one wood material has been branded, it is removed from the frame of the fixed base 50, the next new wood material is placed in the frame of the fixed base 50, and the same operation as described above is repeated to continuously process. Can be. Further, in the case of printing different menu labels by changing characters and figures, the printing body 10 may be replaced and the above operation may be repeated, and the replacement operation is simple.
[0030]
Although the present embodiment has been described with reference to a menu tag as an example, the present invention has a wide range of applications such as the ability to imprint a poem or a haiku on a nameplate, a signboard, or a frame plate.
[0031]
【The invention's effect】
The device of the present invention based on the above configuration and operation can be printed on a menu label, a nameplate, etc., and provides a kind of branding printing means, and can bring out a novelty in design to these products. Has the effect. At this time, it is a safe and easy-to-handle device that does not use a flame, and since the printed body itself is induction-heated, it has good thermal efficiency and can adjust the sharpness and shading, and it is easy to replace the printed body. Demonstrates extremely excellent characteristics in functionality.
[Brief description of the 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 printed 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 fixing base of the apparatus 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]
Reference Signs List 10 Printing body 20 Frame body 30 Heating section 31 Plate 32 Temperature sensor 33 Heating coil 34 Electric circuit 40 Upper frame 50 Fixed table 60 Elevating mechanism

Claims (2)

Characters, figures, etc. are engraved on the surface with irregularities, and prints made of a substance having high relative permeability and printable hardness are removably arranged in a frame, and the prints are taken into the magnetic field region. A heating device for causing an eddy current in the print body itself by an alternating magnetic field generated in the heating coil is disposed,
The heating device includes a power supply circuit that inputs an AC current and sends a DC current to a control circuit and a current conversion circuit, a control circuit that controls a transmission circuit, a transmission circuit that drives a power conversion circuit, a resonance capacitor and a transistor. A heating unit is formed by arranging an electric circuit from a power conversion circuit for passing a high-frequency current through the heating coil, and a detection circuit communicating with the temperature sensor of the heating coil and controlling the temperature, and forming a heating unit. And a switching duty cycle ratio for each transistor of the power conversion circuit, and a heating device is formed so that the temperature can be adjusted for each heating coil that is divided into heating coils corresponding to a plurality of prints. And
A branding apparatus characterized in that a heated printed body is brought into contact with a wooden material for branding. The frame body incorporating the mark itself and the heating device are placed in the upper frame, the fixing base for stopping the wood material is arranged below, and a link that intersects the upper frame and the fixing base at the center, and one end is fixed. 2. The branding apparatus according to claim 1, further comprising a lifting mechanism which is pivotally mounted on the shaft and has a slide groove formed at the other end thereof to move the slidable mark itself up and down in parallel.

Images