KR100698765B1 - Thermal transfer apparatus - Google Patents

Abstract

A thermal transfer apparatus for printing patterns on materials is provided to improve energy efficiency by lowering a transfer temperature through pre-heating and circulation of heated air. A thermal transfer apparatus for printing patterns on materials includes a drying furnace main body(10), a heating burner(20), a couple of moving rails(30), a moving work table(40), and a vacuum rubber plate member(60). The drying furnace main body has a rectangular sealed structure. An opening/closing hole is formed at both ends. A control panel is formed at one side of the drying furnace main body. The heating burner is installed at one side of the drying furnace main body. At least one couple of moving rails are arranged and installed on a moving rail supporting bar, which is arranged on a lower plane of the drying furnace main body, in a lengthwise direction. A wheel which is installed on a lower part of the moving work table is hung to the moving rail. An object material installation plane is formed on an upper plane of the moving work table. The vacuum rubber plate member is installed to be sealed on the installation plane of the moving work table. The object material is arranged on the installation plane of the moving work table. A thermal transfer film is attached on the object material. The object material and the thermal transfer film are sealed by a vacuum rubber plate material. Finally, a pattern printed on the thermal transfer film is printed on the object material by extracting and compressing air in a space sealed by the vacuum rubber plate member through a vacuum pump.

Description

TECHNICAL FIELD [0001] The present invention relates to a thermal transfer apparatus for transferring patterns and the like onto a workpiece by a thermal transfer method.

1 is a perspective view of a thermal transfer apparatus according to an embodiment of the present invention.

2 is an exploded perspective view of a thermal transfer apparatus according to an embodiment of the present invention.

3 is a cross-sectional view of a thermal transfer apparatus according to an embodiment of the present invention.

4 is a reference view showing a method of installing a substrate on a moving work table in a thermal transfer apparatus according to an embodiment of the present invention.

5 is a cross-sectional view showing a state in which a moving workbench is pushed into a drying oven body in a thermal transfer apparatus according to an embodiment of the present invention.

Description of the Related Art

10: drying furnace main body 12: opening / closing port

14: Control panel 16: opening / closing door

20: heating burner 22:

23, 24: ventilation holes 21, 25: duct

30: Moving rail 32: Moving rail support

40: Moving platform 42:

44: seat surface 46: handle

50: a moving table support 60a, 60b: upper and lower vacuum rubber plates

70: Vacuum pump

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer apparatus for transferring a pattern or the like to a substrate by a thermal transfer method and preheating the drying furnace main body and heating the drying furnace body by circulating heated air with a heating burner, The present invention relates to a thermal transfer apparatus capable of thermo-transferring, capable of simultaneous work from both end portions, excellent in work efficiency, and capable of thermally transferring not only a flat surface but also a curved substrate by a vacuum squeezing method.

BACKGROUND ART [0002] In general, a metal plate is used variously for furniture or interior. Due to the nature of its use, it has been required to print various kinds of patterns to enhance its decorative effect.

Conventionally, a method in which a polyethylene (PE) resin film printed with various patterns is directly attached to a substrate using an adhesive agent is adopted. However, since the work process is complicated, labor costs are increased, work efficiency is lowered, It has been the cause. On the other hand, in the conventional transfer method, when the substrate has a predetermined curved surface, it is required to perform separate transfer operations along the curved surface, thereby seriously lowering the work efficiency.

Accordingly, the present inventors have succeeded in providing a vacuum compression bonding method capable of easily thermally transferring not only a flat surface but also a curved surface, significantly reducing the transfer temperature at the time of thermal transfer, greatly improving the energy efficiency, and further simplifying the work process, The development of a thermal transfer device capable of

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a method and apparatus for transferring patterns of various shapes printed on a thermal transfer film to a flat surface of a substrate, It is possible to improve the energy efficiency by lowering the transfer temperature at the time of heat transfer by circulating the preheating and the heating air, and to perform double-side work from the opening and closing parts of both ends and to perform multi-stage work by the moving rail and the moving work table structure And to provide a thermal transfer apparatus excellent in work efficiency and productivity.

According to a first aspect of the present invention, there is provided a thermal transfer apparatus for transferring a pattern or the like to a substrate by a thermal transfer method, the thermal transfer apparatus comprising a rectangular parallelepipedal sealing structure, A drying furnace body provided with a control panel on one side thereof, a heating burner provided on one side of the drying furnace main body, and at least a heating burner disposed on the lower side of the drying furnace main body, A pair of moving rails and a wheel mounted on a lower side thereof are mounted on the moving rail and at the same time a moving seat is formed on an upper side thereof and a vacuum rubber plate member is provided so as to be hermetically sealable on an upper seating surface of the moving table Placing an object on a seating surface of the moving workbench and attaching a thermal transfer film on the object, Air in the space sealed by the vacuum rubber plate member is pulled out by a vacuum pump and vacuum-pressed to finally attach the pattern and the like printed on the thermal transfer film to the object And transferring the thermal transfer sheet.

Preferably, the drying furnace base further includes a lifting platform rest provided on an outer side of the opening and closing port of the drying furnace main body and having a pair of moving rails arranged on an upper surface thereof.

More preferably, the pair of moving rails are arranged in the drying furnace body at least two stages at different heights or widths, and the moving workbench can be conveyed along the moving rails provided with the multi-stage arrays.

Most preferably, the vacuum rubber plate members are composed of an upper side vacuum rubber plate and a lower side vacuum rubber plate which are superimposed on each other to seal the inner space.

According to the embodiment of the present invention, the heating burner preheats the interior of the drying oven body by the operation of the control panel and maintains the temperature in the drying oven body at 170 to 190 캜 during the transfer.

Preferably, the drying furnace body is further provided with a heat conduit connected to one side of the heating burner for transferring the heated air from the heating burner into the drying oven body.

More preferably, the heat conduit is arranged in the longitudinal direction of the drying furnace body, and a plurality of vents are formed at one side of the heat conduction path, so that heated air, which is transferred to the heat conduit, ≪ / RTI >

Most preferably, the heating burner is further provided with a fan so that air is sucked through the air inlet and heated, and then the heated air is blown through the air outlet to the heat pipe.

According to a preferred embodiment of the present invention, at least one ventilation hole is formed at one side of the drying furnace main body, and the air inlet of the heating burner is connected to a duct by the at least one ventilation hole.

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals, and detailed descriptions of well-known functions and configurations that can obscure the gist of the present invention are omitted. The object to be used in the present invention should be interpreted as a broad object including all kinds of materials used for various interior and exterior materials such as metal extruded shape members, rolled plates, ceramics, tiles, and stones.

According to the invention Thermal transfer  Device

FIG. 1 is a perspective view of a thermal transfer apparatus according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a thermal transfer apparatus according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a thermal transfer apparatus according to an embodiment of the present invention, and FIG. 4 is a reference view showing a method of installing a substrate on a moving work table in a thermal transfer apparatus according to an embodiment of the present invention. 5 is a cross-sectional view showing a state in which a moving workbench is pushed into a drying oven body in a thermal transfer apparatus according to an embodiment of the present invention.

1 and 2, the thermal transfer apparatus 100 according to the embodiment of the present invention has a rectangular parallelepipedal sealing structure, and has a door 12 at both end portions thereof, and a control panel 14 A heating burner 20 provided on one side of the drying furnace main body 10, a moving rail support base 32 disposed on the lower side of the drying furnace main body 10, At least a pair of moving rails 30 arranged in the longitudinal direction and a wheel 42 provided at the lower side are mounted on the moving rail 30 and at the same time, And a pair of moving rails 30 are arranged on the upper surface of the drying rack body 30 so that the moving rack 40 can be moved up and down along the moving rail 30 And a movable worktable base 50 for supporting the worktable so as to be able to be drawn in.

As shown in Figs. 1 and 2, the drying furnace body 10 has a substantially rectangular sealing structure to prevent the heated air from being discharged to the outside. Preferably, opening and closing ports 12 are formed at both ends of the drying furnace body 10 so as to be opened and closed by a simple operation. 1, the opening / closing port 12 is opened / closed by an opening / closing door 16 having a knob 17 at one side thereof. The opening / closing door 16 is hinged to an upper end of the opening / And can be opened upward. On the outer side surface of the opening / closing door 16, a handle 17 capable of being held by an operator is provided. Accordingly, the operator can open and open the opening / closing door 16 upwardly while holding the handle 17 of the opening / closing door 16. More preferably, one end of the opening / closing door supporting member 18 having a predetermined length is fixed to one side of the upper end of the drying furnace body 10, and the other end of the opening / closing door supporting member 18 is connected to the opening / So that the opening and closing door 16 can be held in an opened state. Referring to FIG. 1, a control panel 12 is provided on one side of the drying furnace main body 10. The operator can operate the heating burner 20 or the like and the temperature setting in the drying furnace main body 10 through the control panel 12 to maintain the drying furnace main body 10 in the most optimal environment for thermal transfer . Referring to FIG. 1, a heating burner 20 is further provided on one side of the drying furnace body 10. The heating burner 20 is for heating and maintaining the temperature in the drying furnace body 10 at an appropriate temperature. Particularly, the operation efficiency can be improved by preheating the inside of the drying oven body 10 by the operation of the control panel 14 during the thermal transfer operation by the heating burner 20. This is advantageous in that the thermal transfer can be performed at a relatively low temperature of 170 to 190 DEG C in the case of preheating. Therefore, the present invention is advantageous in energy efficiency compared with a conventional thermal transfer apparatus which is thermally transferred at 200 to 250 ° C.

As shown in Figs. 1 and 2, a plurality of moving rail support bases 32 are disposed on the lower side of the drying furnace main body 10. At least a pair of moving rails (30) are arranged on the support in the longitudinal direction. Preferably, the moving rails 30 are arranged in at least two stages with different heights or widths, and the moving workbench 40 can be moved along the moving rails provided with the multi-stage arrays. Although not shown, a pair of additional moving rails between the pair of moving rails shown in Fig. 1 are installed so that the width is relatively narrow and the height is different, so that each of the moving workbenches conveyed along the moving rails interferes with each other . As described above, since the moving rails are arranged in a multi-stage arrangement in the drying furnace main body, the simultaneous operation is performed, thereby improving the production efficiency and reducing the manufacturing cost.

Referring to FIGS. 1 and 2, a pair of moving rails 30 is provided with a movable work table 40 having wheels 42 on its lower side movably along the moving rails 30. The moving worktable 40 has an upper surface 44 on which an object to be thermally transferred is seated on the upper surface 44 during operation. 3 to 5, vacuum glass plate members 60a and 60b are provided on the seating surface 44 of the moving table 40. The vacuum pad members 60a and 60b are disposed on the seating surface 44 of the moving table 40, (1). Preferably, the vacuum rubber plate members 60a and 60b are disposed on the seating surface 44 and are covered on the lower side vacuum rubber plate 60b supporting the object 1 and the lower side vacuum rubber plate 60b, And an upper vacuum rubber plate 60a for sealing the space. That is, the upper vacuum rubber plate 60a is superimposed on the lower vacuum rubber plate 60b to seal the spaces therebetween. Therefore, the object 1 is placed on the seating surface 44 (or the lower vacuum rubber plate 60b provided on the seating surface 44) of the moving table 40 and the object 1 to be transferred And the upper vacuum rubber plate 60a is covered with the substrate 1 and the thermal transfer film 5 at the same time. In this case, the object 1 and the thermal transfer film placed between the upper vacuum rubber plate 60a and the seating surface 44 (or the lower vacuum rubber plate 60b) are placed in a completely sealed state in which air and air are cut off from the outside. Next, air in the space sealed by the vacuum rubber plate members 60a and 60b is extracted using a separately provided vacuum pump 70 to vacuum-bond the thermal transfer film 5 to the substrate 1, A pattern or the like printed on the film 5 is transferred to the object 1.

Referring to FIGS. 1 and 2, a drifting platform supporter 50 having a pair of moving rails 30 arranged on an upper surface of the opening and closing port 12 of the drying furnace body 10 is provided. Therefore, the moving workbench 40 is taken out to the outside along the moving rail 30 arranged on the moving workbench pedestal 50, and then the workpiece 1 is placed on the mounting surface 44 of the moving workbench 40 It can be seated. Preferably, the moving rails 30 on the moving table stand 50 are arranged at the same height and width as the pair of moving rails 30 arranged in the drying furnace body 10. Therefore, when the worker opens the opening / closing door 16 and pulls or pushes the moving workbench 40, the moving workbench 40 can be easily pulled along the moving rail 30. More preferably, a handle 46 is provided at one end of the moving table 40 so that the operator can grasp it.

1 and 2, the drying furnace body 10 is connected to one side of the heating burner 20 by a duct 21 or the like to supply the air heated by the heating burner 20 to the drying furnace body 10 (Not shown). Preferably, the heat transfer passages 22 are arranged in the longitudinal direction of the drying furnace body 10, and a plurality of ventilation openings 23 are formed on one side of the heat transfer passages 22. The heated air transferred from the heating burner 20 to the heat transfer path 22 flows into the drying furnace main body 10 through the plurality of ventilation holes 23 via the heat transfer path 22. As a result, the heated air introduced into the drying furnace main body 10 heats and maintains the temperature in the drying furnace main body 10 at an appropriate temperature.

Preferably, the heating burner 20 is further provided with a fan (not shown) for blowing the heated air to the heat transfer path 22 side. An air inlet is formed at one side of the heating burner 20 and an air outlet is formed at the other side. Accordingly, the air sucked into the air inlet is heated by the operation of the fan, and then the heated air is blown toward the heat pipe 22 via the air outlet and the duct 21. As shown in Fig. 1 and Fig. 2, at least one ventilation opening 24 is formed on one side of the drying furnace body 10. Preferably, the air inlet 24 of the heating burner 20 and the air inlet 24 are connected by a duct 25 or the like. As a result, the air in the drying furnace main body 10 flows into the air inlet of the heating burner 20 again through the ventilation openings 24, and the heating burner 20 reheats the introduced air, To the main body 10 of the drying furnace. In this way, the temperature in the drying furnace body 10 can be maintained at a proper temperature by reheating the air in the drying furnace body 10 while circulating the air in the drying furnace body 10, It is possible to uniformly distribute the heated air evenly inside the main body of the dryer, thereby minimizing the occurrence of defects due to temperature variations and the like.

According to the invention Thermal transfer  By device Thermal transfer  fair

The process of thermally transferring the substrate to the substrate using the thermal transfer apparatus according to the present invention is as follows.

First, after the opening and closing door 16 is opened, the moving workbench 40 is taken out along the moving rail 30 and placed on the moving workbench pedestal 50. At the same time, the heating burner 20 is operated by the operation of the control panel 14, and the interior of the drying furnace 10 is preheated. Then, the object 1 to be thermally transferred is placed on the seating surface 44 (or the lower vacuum rubber plate 60b) of the moving workbench 40, and the thermal transfer film (5). Then, the work 1 on which the thermal transfer film 5 is adhered is covered with the upper vacuum rubber plate 60a and sealed. Then, in the sealed state, the air in the space sealed by the vacuum rubber plate 60 is extracted using the vacuum pump 70, and the thermal transfer film 5 and the substrate 1 are vacuum-pressed. In this case, as shown in Figs. 3 to 5, at the time of vacuum pressing by the vacuum pump 70, particularly, the upper side vacuum rubber plate member 60a touches the bent curved surface to thermally transfer, . Then, the opening / closing door 16 is opened and the moving workbench 40 is transferred into the drying furnace body 10, and then the opening / closing door 16 is closed to seal the opening / closing port 12. In this case, the inside of the drying furnace body 10 has already been preheated to a predetermined temperature, and even after the moving workbench 40 is transferred into the drying furnace body, the thermal transfer film 5 and the substrate 1) is continuously maintained. At the same time, the heated air heated by the heating burner 20 flows into the drying furnace body 10 via the heat conduit 22 to heat and maintain the temperature of the drying furnace body 10 at 170 to 190 캜 So that the patterns of various shapes printed on the thermal transfer film 5 are transferred to the substrate 1. Finally, the opening and closing door 16 is opened to take out the moving workbench 40, and the transfer film is removed from the substrate 1 already transferred, thereby obtaining a thermally-transferred product.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes and modifications may be made. Thus, for example, it will be apparent to those skilled in the art that modifications and variations of the configuration of the thermal transfer apparatus shown in the drawings and the like can be made without departing from the spirit and scope of the present invention, and the present invention is limited only by the claims that follow.

According to the present invention, it is possible to transfer patterns of various shapes printed on a thermal transfer film by a vacuum compression method to not only a flat surface of a substrate but also a curved bent surface. By transferring preheating and circulation of heated air, It is possible to provide a thermal transfer apparatus which can improve the energy efficiency by lowering energy consumption and enable double-sided operation from the opening and closing ports of both ends, and can perform multistage operation by a moving rail and a moving table structure arranged in multiple stages, .

Claims (9)

A thermal transfer apparatus for transferring a pattern or the like to a substrate by a thermal transfer method, A drying furnace body having a substantially rectangular parallelepiped shape and having a rectangular parallelepiped structure and having a door at both ends thereof and a control panel on one side; A heating burner provided on one side of the drying furnace main body; At least one pair of moving rails arranged longitudinally on a moving rail support disposed on a lower side of the drying furnace main body; A moving base on which a wheel provided at the lower side is mounted on the moving rail and an image bearing surface is formed on the upper side; And a vacuum rubber plate member sealingly mounted on an upper seating surface of the moving work table, And a heat transfer film is attached on the substrate, and the substrate and the thermal transfer film are simultaneously sealed with the vacuum rubber plate member. Finally, the vacuum rubber plate member The air in the space sealed by the heat transfer film is pulled out and vacuum-pressed to transfer the pattern or the like printed on the thermal transfer film to the article. The thermal transfer apparatus according to claim 1, further comprising a moving table support provided on an outer side of the door of the drying furnace body and having a pair of moving rails arranged on an upper surface thereof. The drying furnace according to claim 1 or 2, characterized in that the pair of moving rails are arranged in the drying furnace body at least two stages in height or width different from each other and the moving workbench can be transferred along the moving rails provided with the multi- . The thermal transfer apparatus according to claim 1, wherein the vacuum rubber plate member is composed of an upper vacuum rubber plate and a lower vacuum rubber plate which are superimposed on each other to seal the inner space. 2. The thermal transfer apparatus according to claim 1, wherein the heating burner preheats the interior of the drying oven body by the operation of the control panel and maintains the temperature in the drying oven body at 170 to 190 DEG C during the transferring operation, . 2. The thermal transfer apparatus according to claim 1, further comprising a heat transfer path connected to one side of the heating burner and transferring the heated air from the heating burner into the drying furnace body. [7] The apparatus according to claim 6, wherein the heat pipe is arranged in the longitudinal direction of the main body of the dryer, and a plurality of vents are formed at one side of the heat pipe, And the heat is transferred into the heat transfer device. 7. The thermal transfer apparatus according to claim 6, wherein the heating burner is further provided with a fan so that air is sucked through the air inlet and then heated, and then the heated air is blown to the heat- . 9. The thermal transfer apparatus as claimed in claim 8, wherein at least one ventilation hole is formed at one side of the drying furnace body, and the air inlet of the heating burner is connected to the atmospheric air inlet through a duct.

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