JPH047301B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal transfer device that is capable of simultaneously transferring multiple surfaces in one transfer, and its purpose is to create a conductive film that uses a transfer foil to form a pattern with excellent dimensional accuracy. By applying body films, dielectric films, etc. to the top and side surfaces of a ceramic substrate, or the top and bottom surfaces and side surfaces, without causing pattern disconnection between each surface.
At the same time, it is an object of the present invention to provide a thermal transfer device that can be used for efficient installation.

Conventionally, it is a means of providing a conductor film for forming electrodes, a dielectric film, a resistor film, etc. to utilize electrical properties in an arbitrary pattern on a ceramic substrate used for manufacturing electronic components. For example, techniques such as screen printing, masking vapor deposition, sputtering, and photoetching are generally well known, but among these techniques, it is difficult to industrially obtain thick films using techniques other than screen printing. There are some drawbacks, and even if it could be obtained, it would be economically expensive. Therefore, in practice, the screen printing method is often used.

With the diversification of electronic components in recent years, for example, fine patterns made of conductive films, dielectric films, etc., are continuously applied to multiple surfaces such as the top and side surfaces of the ceramic substrate, or even the top, bottom, and side surfaces of the ceramic substrate. There is a growing need for wires to be installed in such a way that they do not break, but the direct printing method using the screen printing method described above is
It is difficult to print multiple sides at the same time even when printing once, and each side must be printed one by one. Therefore, the printing seams between each side tend to be misregistered, or the film thickness tends to be uneven, which can cause problems with the electrical properties of the formed film, and even cause wire breakage. There were flaws.

In view of the current situation, the inventors of the present invention have conducted various studies on a transfer device to meet the above needs, and as a result, the present inventor has developed a device that fixes a transfer target body in a position adjustable manner, and has a transfer head portion that moves forward and backward with respect to the transfer target body. ,
It was discovered that the desired transfer material could be obtained by providing a heating and pressing means capable of simultaneously pressing multiple surfaces depending on the shape, size, material, etc. of the object to be transferred, and based on this knowledge, the present invention was completed. It came to this.

That is, the present invention provides a means for manually or automatically pressing a transfer head equipped with a transfer means that can advance and retreat freely against a transfer surface of a transfer object and apply heat and pressure to any plurality of surfaces at the same time; This thermal transfer device is capable of performing transfer processing on multiple surfaces in one transfer, and is comprised of a means for supplying and stabilizing a transfer foil to a transfer surface, and a means for fixing and supporting an object to be transferred so that its position can be adjusted.

The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 shows one embodiment of the present invention,
First, the means for pressing the transfer head against the transfer surface of the transfer object in the present invention will be explained. In the figure, 1 is a base plate mainly made of metal;
This supports the entire transfer device. A thick plate-shaped support 2 extends from the center of this platform 1 to the rear.
Two support plates 5 and 6 are arranged and fixed to the front surface of the upper half of the support column 2 by bolts 3 and 4. Furthermore, a pair of linear slides 7 and 8 that can be slid in the vertical direction are provided on the front surface of the support plate 6, but the linear slide 7 is in a fixed state, and the linear slide 8 is more movable in the vertical direction. will be placed. A transfer head holder 10 having a holder 9 protruding forward is provided on the front surface of the linear slide 8.
is fixed and configured to be able to move up and down integrally with the linear slide 8.

The drive mechanism for moving the transfer head holder 10 up and down is a shaft 13 that passes through the support 2 slightly below the center of the support 2 and is supported by bearings 11 and 12 on both sides. An arm 14 fixed to the shaft and a rotation handle 15 rotatably connected at the tip of the arm 14 are provided at one end.

On the other hand, a rotary arm 16 is connected and fixed to the other end of the shaft 13, and a crank arm 17 is connected to one end thereof, and a side plate is connected to the tip of the crank arm 17 and the side surface of the transfer head holder 10. 18 are connected. As a result, while the transfer head holding stand 10 is supported by the crank arm 17, the rotation of the rotary handle 15 is converted into a linear motion and transmitted by the rotary arm 16 and the crank arm 17, and the transfer head holder 10 is moved up and down. The transfer head holder 10 can be driven by manually operating the rotation handle 15, but it can also be easily driven by, for example, rotating the shaft 13 using the rotational force of a motor.

On the front surface of the transfer head holding table 10 constructed as described above, a transfer head 19 is provided which is equipped with a transfer means that can freely move forward and backward to apply heat and pressure to any plurality of surfaces at the same time. To install this transfer head 19, first, the upper surface of the transfer head 19 is fixed with bolts 22 to a transfer head mounting plate 21, which has an integrally erected holding shaft 20 with a threaded upper part in the center. At the same time, the holding shaft 20 is attached to the holding shaft fixing plate 2.
3. It may be fixed to the holding part 9 using bolts 24, position adjustment nuts 25, etc.

In order to adjust the mounting position of the transfer head 19, a position adjusting nut 25 fitted into the holding shaft support part 26 protruding from the upper part of the holding part 9 and the threaded part at the upper part of the holding shaft 20 is inserted. It's best to lean over and do it.

Various types of transfer means can be considered as the transfer means that can simultaneously heat and press the arbitrary plurality of surfaces provided on the transfer head 19 arranged in this way.
All of these are the most important parts in terms of the structure of the present invention.

First, one aspect is shown in FIG. In the figure, reference numeral 27 is a through hole provided on the side surface of the transfer head, and is a heater insertion hole for loading a heater inside. The lower surface of the transfer head 19 has a convex shape (when viewed from the side), and the convex portion 28, which is the protrusion, has an L-shaped transfer receiving mold 29 on each of its front and rear surfaces. For an appropriate period of time between the inner surfaces 30 of the transfer receiving molds, which face each other inwardly and face each other at their lower tips.
At the same time, the inner surface 30 of the transfer receiving mold is provided so as to be able to perform inward transfer pressure. Various methods are conceivable for providing the inner surface 30 of the transfer mold so that pressure can be applied to the transfer. By inserting and fixing the tip of the transfer mold fixing bolt 33, which is attached so that the pressing force can be adjusted, into the screw hole 34 of the convex portion 28, the transfer mold 29 is elastically moved by the spring force of the spring 31. Therefore, the inner surface 30 of the transfer receiving mold can always maintain the transfer pressure state.

On the other hand, a groove 35 is provided inside the convex portion 28 above it.
and a groove 36 with an open hole in the lower part connected to this.
In addition, a spring 3 is provided inside the groove 35.
7 is inserted into the groove 36, and a transfer receiving plate 38 whose upper end is connected to a spring 37 is disposed inside the groove 36 so as to be movable up and down in the gap between the inner surfaces 30 of the front and rear transfer receiving molds and within the groove 36. With this configuration, the first aspect of the transfer means provided in the transfer head described above can be obtained.

Further, in order to perform transfer onto a transfer object using a transfer head equipped with a transfer means having such a configuration, the lower part is supported by the transfer object support plate 68 while the transfer object fixing part 56 and the transfer object are connected to each other. When the transfer foil 40 is placed with its transfer layer 41 facing downward on the upper surface of the object 39 held by the object fixing plate 67 or the like, and the transfer head 19 is pushed down from above, the upper end of the object 39 is fixed. The side surface (corresponding to the side surface of the transferred object) is heated and pressed together with the transfer foil 40 by the transfer receiving plate 38, and the side surface of the transferred object 39 (corresponding to the upper and lower surfaces of the transferred object) is also heated and pressed by the transfer receiving mold inner surface. 30, so that the upper, lower and side surfaces of the object to be transferred are transferred at the same time.

Next, a second embodiment of the transfer means provided in the transfer head is shown in FIGS. 3 and 4. In this case, the lower surface of the transfer head 19 may be flat, especially the convex portion 28.
There is no need to provide

At the center of the lower surface of the transfer head 19 having such a shape, a pipe-shaped roll shaft 43 is rotatably supported by roll shaft support arms 42 on both sides, and a heater can be inserted inside.
Two heated rubber rolls 44 made of heat-resistant rubber are rolled.
These two heated rubber rolls 44 are arranged in parallel, and are arranged so that the space between the two rubber rolls is pressed by a spring 46 provided below a fixed outer cover 45.

On the other hand, in the lower part of the transfer head 19, grooves 35 and 36 similar to those in the first embodiment are provided, and inside thereof, a spring 37 and a transfer receiving plate 38 are respectively provided in the same manner. .

Further, a third embodiment of the transfer means provided in the transfer head is shown in FIG. In this case, a convex portion 28 is provided at the lower part of the heatable transfer head 19, and the convex portion 28 is
A groove 36 is formed in the center of the transfer plate 8 in both directions, and a transfer mold 38 is provided inside the groove 36 to be pushed down from behind by a spring 37 so as to be movable up and down within the groove 36. A pair of transfer receiving molds 48 are provided on both sides of the transfer receiving mold, each having an inward pressing force in contact with both corner slopes 47 and movable back and forth. In addition, in order to fix this transfer mold 48 to the transfer head 19, transfer molds that pass through the transfer mold holder 49 are installed at two locations on the left and right of the transfer mold holder 49, which are respectively fixed on the front and rear surfaces of the convex portion 28. It is preferable that a pressure shaft 50 is provided, and the transfer receiving die 48 is fixed to the tip thereof, while the rear end of the transfer pressure shaft is connected to a spring 52 fixed with a spring cover 51.

Furthermore, in this embodiment, in addition to the above configuration, it is preferable to attach an elastic sheet 54 of an appropriate thickness to the lower surface of the transfer receiving mold 48 using a holding piece 53.

Next, as a means for supplying and stabilizing the transfer foil to the transfer surface of the transfer object in the present invention, for example, as shown in FIG. An object support stand 55 is provided, and on the upper part of the transfer object support stand 55, transfer foil guides 57 are fixed on both sides of a central transfer object fixing part 56 by transfer foil guide fixing plates 58,
Furthermore, behind the transferred object fixing section 56, the support column 2
A foil press plate 61 is always applied with a downward pressing force by a spring 60 on top of a foil press support plate 59 fixedly attached to the transfer foil guide 57 .
placed in contact with the surface with appropriate pressure.

In order to adjust the pressing force of the foil pressing plate 61 provided here, the position can be adjusted by using the groove 62 and the bolt 63 provided in the foil pressing support plate 59.

In order to supply transfer foil to the area configured in this way, first cut the transfer foil into tapes with the same width as the transfer foil guide 57 and place it on the surface of one of the transfer foil guides 57. While placing the transfer foil, if the transfer foil is pulled to the other side through the groove 64 and then pressed with the foil pressing plate 61, the transfer foil can be stably placed on the object to be transferred. In order to continuously supply the transfer foil, separate transfer foil unwinding and winding devices may be installed on both the right and left sides of the transferred object support 55.

As a means for fixedly supporting the transferred object in the present invention in a position-adjustable manner, for example, as shown in FIG.
A groove 65 consisting of steps is provided, and a circular groove 66 with an open top is provided below the groove on the lower step side, continuous with the groove. On the other hand, a transfer object support plate 68 is provided between the transfer object fixing part 56 provided at the rear of the upper surface of the upper stage of the groove 65 and the transfer object fixing plate 67 provided in front of the transfer object fixing part 56.
is disposed such that its lower end is supported in contact with the eccentric shaft 70 of the position adjustment pin 69 inserted into the circular groove 66. This position adjustment pin 69 has a circular groove 6
The position adjustment pin 6 is rotatably provided at the bottom of the transfer object support 55 by a screw 71, a spring washer, a nut 72, etc.
9 is rotated from the front using a screwdriver or the like, the transferred object support plate 68 moves in the vertical direction by the eccentric shaft 70, and as a result of this movement, the transferred object supported by the transferred object support plate 68 Object 39 will be adjusted in position.

In this case, the size and shape of the transferred object support plate 68 should be adjusted in response to changes in the dimensions and shape of the transferred object 39.
It suffices to change the shape, etc., and to change the thickness, the gap between the transferred object fixing part 56 and the transferred object fixing plate 67 (transferred object insertion part) can be adjusted by tightening the bolt 7.
Adjust and fix according to step 3.

Since the thermal transfer device according to the present invention has the configuration of each part as described above, if this thermal transfer device is used, conductive material can be transferred to multiple surfaces of the transferred object such as glass or ceramic substrates in one transfer process. A transfer pattern made of a film or a dielectric film can be continuously provided between each surface without disconnection.

Furthermore, by appropriately providing various transfer means in the transfer head, transfer processing can be easily performed on transfer objects made of various materials, shapes, dimensions, etc., and the present invention has a wide range of useful values.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of a thermal transfer device according to the present invention, FIG. 2 is a cross-sectional explanatory view of one embodiment of a transfer means provided in a transfer head, and FIG. 3 is a cross-sectional explanatory diagram of another embodiment. Figure 4 is the third
FIG. 5 is a cross-sectional explanatory diagram of yet another embodiment, FIG. 6 is an enlarged perspective view of a portion showing means for supplying and stabilizing the transfer foil, and FIG. 7 is a transferred target. FIG. 8 is a partially cutaway enlarged perspective view of a portion showing means for fixing an object, and FIG. 8 is a perspective view of a position adjustment pin. In the figure, 1... base plate, 2... pillar, 3, 4... bolt, 5, 6... support plate, 7, 8... linear slide, 9... holding part, 10... transfer head holding stand , 11, 12...Bearing, 13...Shaft, 1
4... Arm, 15... Rotating handle, 16...
Rotating arm, 17... Crank arm, 18...
Side plate, 19... Transfer head, 20... Holding shaft, 2
1...Transfer head installation board, 22...Bolt, 23
... Holding shaft fixing plate, 24 ... Bolt, 25 ... Position adjustment nut, 26 ... Holding shaft support part, 27 ...
...Heater insertion hole, 28...Protrusion, 29...Transfer mold, 30...Inner surface of the transfer mold, 31...Spring, 32...Spring fixing nut, 33...Transfer mold fixing bolt, 34... ...Screw hole, 35...
Groove, 36...Groove, 37...Spring, 38...
Transfer receiving plate, 39... Transferred object, 40... Transfer foil,
41... Transfer layer, 42... Roll shaft support arm,
43...Pipe-shaped roll shaft, 44...Heating rubber roll, 45...Cover, 46...Spring, 4
7... Both corner slopes, 48... Transfer receiving mold, 49
...Transfer receiving mold holding section, 50...Transfer pressure shaft, 51
... Spring cover, 52 ... Spring, 5
3... Holding piece, 54... Elastic sheet, 55...
Transferred object support stand, 56...Transferred object fixing part, 57
... Transfer foil guide, 58 ... Transfer foil guide fixing plate, 59 ... Foil holding support plate, 60 ... Spring, 61 ... Foil holding plate, 62 ... Groove, 63 ...
Bolt, 64...Groove, 65...Groove consisting of two upper and lower stages, 66...Circular groove, 67...Transferred object fixing plate,
68... Transferred object support plate, 69... Position adjustment pin, 70... Eccentric shaft, 71... Screw, 72... Nut, 73... Bolt.

Claims (1)

[Scope of Claims] 1. A groove is provided inside the downward protrusion of the transfer head into which the heater is inserted, and a transfer receiving plate supported by a spring is provided in the groove, and a groove is provided in the groove below the outer side of the transfer head protrusion. It has a transfer plate which allows the transfer plate to pass through and whose contact inner surface can maintain transfer pressure.The plate can be freely moved forward or backward from the transfer surface of the transfer object manually or automatically. A means for pressing a transfer head equipped with a transfer means capable of simultaneously heating and pressing multiple surfaces of the object, a means for supplying and stabilizing the transfer foil to the surface of the object to be transferred, and a fixed support for the object to be transferred such that the position thereof can be adjusted. A thermal transfer device that can perform transfer processing on multiple surfaces with a single transfer. 2. Two heating rubber rolls each having a built-in heater are installed on the lower surface of the transfer head in parallel with a groove provided inside the lower part of the transfer head. A transfer receiving plate is provided, and the lower end thereof is disposed at least slightly below the center between the heating rubber rolls, and the transfer receiving plate is arranged so that the lower end thereof is at least slightly below the center between the heated rubber rolls. means for pressing a transfer head equipped with a transfer means that can heat and press the surfaces simultaneously; means for supplying and stabilizing the transfer foil to the transfer surface of the transfer object;
A thermal transfer device that is capable of transferring onto multiple surfaces in one transfer process, which includes means for fixing and supporting an object to be transferred in a position-adjustable manner. 3. Below the transfer head, a transfer mold having a built-in heater inside the head and supported by a spring so as to be movable back and forth is arranged at three locations on the top and both sides so as to be movable back and forth facing each other, An elastic sheet is attached to the lower surface of the transfer receiving mold on both sides, and a transfer means is provided that can move forward and backward freely to heat and press any plurality of surfaces at the same time, manually or automatically. A means for pressing the provided transfer head, a means for supplying and stabilizing the transfer foil onto the surface of the object to be transferred, and a means for fixing and supporting the object to be transferred in a position-adjustable manner. A thermal transfer device that can perform transfer processing. 4. The means for supplying and stabilizing the transfer foil to the transfer surface of the transfer object is provided on the outside of the upper part of the transfer object support stand, the transfer foil guide fixing plate provided at the upper front surface of the support stand, and the transfer foil guide fixing plate provided between them. The transfer foil guide provided, the groove formed by the groove, and a foil press plate having a spring effect disposed near the inner end of the upper surface of the transfer foil guide so as to be perpendicular to the transfer foil guide and press the surface thereof. A thermal transfer device according to any one of claims 1 to 3, which is formed by: 5. The means for fixing and supporting the transferred object in a position-adjustable manner includes a transferred object supporting plate that is vertically movably provided in the transferred object insertion section sandwiched between the transferred object fixing section and the transferred object fixing plate. 5. The thermal transfer device according to claim 1, wherein the lower end of the transfer target position adjusting pin is arranged so as to be in contact with an eccentric shaft surface of a rotatable transfer target position adjusting pin having an eccentric shaft.