JP2006062180A - Hydraulic transfer method/device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To hydraulically transfer a printing layer which is free from the deformation of a pattern and the fading of a color when an image is transferred to a curved surface, to the transfer surface of a work with high precision. <P>SOLUTION: In a hydraulic transfer device 50, a hydraulic transfer film 51 is kept afloat on the reserved water surface of a swelling water tank region 57, then is swelled, and a floating frame 59 is transferred from the swelling water tank region 57 to the hydraulic transfer water tank region 58 connected with the former. After that, an activator is applied to the hydraulic transfer film 51 using an activator application means 55, then the work is submerged under the reserved water level by a work submerging/picking-up means 56 and an image is transferred to the work using hydraulic pressure. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a water pressure transfer method and a water pressure transfer apparatus.

  Usually, in order to finish home appliances such as household refrigerators inexpensively, the same products are produced in large quantities with a small variety. In order to finish refrigerator door materials etc. cheaply, steel plates with the same color pattern are purchased and processed in large quantities, and foamed and finished with heat insulating material, so the color patterns that the user can select are limited.

  If the doors for refrigerators processed in mass production can be changed to a variety of colors in a small lot in a later process, it is also an era of individuality, the choices are greatly increased, the living space can be relaxed and fun It will be a thing.

  As a method that can meet such demands, there is a hydraulic transfer method, and the hydraulic transfer method and apparatus are introduced in Patent Document 1.

  The hydraulic transfer method is a floating water transfer film with a urethane resin water-insoluble printing layer on a water-soluble film surface such as polyvinyl alcohol resin, and the water-soluble film surface is swollen and dissolved by water.・ Liquefied, and at the same time, the water-insoluble print layer is dissolved and liquefied with an activator mainly composed of toluene or xylene, creating a state where the print layer is liquid and floats on the water surface. It has been introduced that the print layer of the work, which is the printing object, is submerged in water from above with respect to the print layer in which the printing layer is dissolved, so that the print layer adheres and adheres along the print surface by water pressure.

    Therefore, when the workpiece is pulled up from the water as it is and the remaining water-soluble film is washed away with water, only the printing layer is transferred to the workpiece surface including the curved surface, and the hydraulic transfer printing is completed.

  The hydraulic transfer method of this method is advantageous in that an arbitrary printed layer can be transferred along a curved surface even if the surface to be printed of the workpiece is a non-planar surface such as a curved surface. It is suitable for printing on the surface of refrigerator door parts such as press parts.

  However, when a water-soluble film having a printing layer on the water surface is supplied, the hydraulic transfer film, in which the printing layer is softened and dissolved in advance with an activator in advance, is accompanied by the promotion of swelling, dissolution and liquefaction of the water-soluble film. The width will expand.

  Also, after floating on the water surface, the method of softening and liquefying by applying the activation solvent to the print layer also increases the width of the print layer after application of the activator, and the draw ratio is not isotropic, The printed pattern may be distorted.

    In addition, when the color pattern of the printing layer is provided on the water-soluble film by a method of forming a dot pattern (or cell) such as gravure printing, the dot pattern or It is conceivable that the cell spacing is enlarged, the color pattern density of the print layer is lightly changed, and the print pattern itself is blurred.

  Patent Document 2 introduces a hydraulic transfer method and apparatus that solves this problem and forms a print pattern that is clear and has no distortion on a workpiece using a water-soluble film having a print layer.

  The hydraulic transfer device and construction method introduced in Patent Document 2 will be described with reference to FIGS.

  FIG. 9 is a cross-sectional view showing an outline of a conventional hydraulic transfer device, and FIG. 10 is a perspective view provided with a guide frame for preventing enlargement.

  A water-soluble or water-swellable film 3 having a print pattern 3a formed on the surface in advance is wound around the supply roller 7. The water-soluble film 3 fed from the supply roller 7 passes between the feed roller 4 and the dampening roller 5 and is fed from the slide plate 13 into the water tank 1.

  During this time, the activating liquid 6a is applied from the dampening roller 5 to the surface of the water-soluble film 3 on the side of the print pattern 3a, and the print pattern 3a is activated (partially dissolving and swelling the print pattern to make it sticky and flexible. To say).

    The water-soluble film 3 that has reached the water tank 1 floats to the left on the water 2 with the print pattern 3a facing upward. During this time, the conveyance chain 10 provided above the water tank 1 conveys the workpiece 8 placed on the pallet 9 in the direction of arrow L in FIG.

  While being conveyed from the roller 16 to the roller 17 side, the workpiece 8 is gradually immersed in the water 2 of the water tank 1 with a predetermined incident angle while pressing the water-soluble film 3 downward, and then the workpiece 8 is As it goes to the roller 15, it is pulled up from the water 2.

  When the work 8 is immersed, the water-soluble film 3 having the print pattern 3 a adheres to the surface of the work 8, and when the work 8 is pulled up from the water 2, the water-soluble film 3 adheres to the surface of the work 8 as it is. .

  In this way, the print pattern 3 a is transferred to the surface of the work 8. The remaining water-soluble film 3 on the water tank 1 is then dissolved by the water 2 on the downstream side of the water tank 1. This is also a known method in Patent Document 3 or the like, but the activating liquid may be applied after the water-soluble film 3 is floated on the water surface with the printed pattern 3a facing up.

  A water-soluble or water-swellable film 3 having a printed pattern 3a liquefied with an activator 6a is provided above the water tank 1 and floats on the water surface. Each of the guide chains includes a transport chain 10 for transporting a workpiece that immerses 8 in the depressing water, and a pair of guide chains 22a and 22b provided to regulate the side edges of the water-soluble film in the longitudinal direction in the water tank. 22a and 22b are held by moving frames 23a and 23b provided in the longitudinal direction in the water tank 1. The moving frames 23a and 23b move in the width direction of the water tank 1, and the width direction of the pair of guide chains 23a and 23b. The hydraulic transfer device is characterized in that the interval is variable.

  By moving the pair of moving frames 22a and 22b in the width direction of the water tank 1 and adjusting the distance in the width direction of the pair of guide chains 22a and 22b that regulate the side edges of the water-soluble film 3, the water-soluble film 3 The width at the time of swelling can be maintained at an optimum value.

  Further, the drive gear 29 is driven, and the upper portions of the pair of guide chains are moved in the water tank 1 at the same direction and substantially the same speed as the water flow. In this case, since the upper side surface regulates the side edge of the water-soluble film 3, the water-soluble film 3 is not unnecessarily enlarged in the width direction.

Thereby, the distortion of the shape of the printing pattern 3a and the blurring of the color can be prevented. Further, by moving the upper part at substantially the same speed as the flow rate of the water flow, it is possible to suppress the generation of shearing force on the side of the water-soluble film and to prevent the water-soluble film 3 from breaking and wrinkles. .
Japanese Patent Laid-Open No. 51-21914 Japanese Patent Laid-Open No. 06-115049 Japanese Patent Publication No. 02-32160

  However, in the above conventional hydraulic transfer device and method, expansion of the print layer in the width direction can be prevented, and the color density of the print layer due to enlargement of the color pattern of the halftone dot, such as gravure printing, is slightly changed, and the print layer Although blurring can be improved, expansion of the water tank in the flow direction of the hydraulic transfer film cannot be prevented and one hand falls off.

  In addition, even though the expansion in the flow direction can be regulated to some extent by using a continuous hydraulic transfer film, the immersion of the work in the continuous hydraulic transfer film generates water waves and splashes, Drops are dropped even after the previous workpiece is pulled up from the water, so that the subsequent hydraulic transfer film that continuously flows is greatly deformed, dripped with water, and generates wrinkles.

  As a countermeasure, it is necessary to immerse the next workpiece at a location that is considerably distant from the surface of the hydraulic transfer film, which has the disadvantage that the effective area of the hydraulic transfer film is extremely reduced and the yield is deteriorated.

  In addition, the method of transferring while continuously transferring the hydraulic transfer film is the movement of the workpiece and the flow of the hydraulic transfer film so that the printing layer does not generate wrinkles in the workpiece conveyance direction, that is, the flow of the hydraulic transfer film. Therefore, there is a problem that the entire apparatus is very complicated.

  Furthermore, as described above, the hydraulic transfer method requires a step of softly swelling, softening, and liquefying the water-soluble film of the base layer. In the method of hydraulic transfer by continuously flowing the hydraulic transfer film, Predetermined swelling time is required, and there is a drawback that the entire apparatus becomes large in order to secure a long water tank.

  In addition, if it is a hydraulic transfer method that cuts to the required dimensions one by one and floats in a hydrostatic single tank, it is possible to produce one product, but because it takes a relatively long time to swell on the reservoir water surface, it is long. There was a problem that required a waiting time and became a very inefficient production method.

  In view of the above-described conventional problems, the present invention provides a hydraulic transfer method for accurately transferring a print layer free of pattern deformation and color blur to a transfer surface of a workpiece with respect to a transfer to a curved surface, An object of the present invention is to provide a hydraulic transfer device.

  In order to achieve the above-mentioned object, the hydraulic transfer method of the present invention comprises a floating transfer frame that floats on a water storage surface in a swollen water tank area, with a hydraulic transfer film in which a pattern is provided on a water-soluble base layer with a water-insoluble printing layer. Without contacting the inner wall surface, the base layer is floated in an enclosed state with the storage water surface side and swollen for a predetermined time; and the floating transfer film is in an enclosed state while the floating frame is in a floating state A second step of moving from the swollen water tank area to the hydraulic transfer water tank area where the reservoir water surface is connected, and the hydraulic transfer by applying an activator from the upper surface of the hydraulic transfer film that has been moved together with the floating frame by the activator application means A third process for imparting flexibility and tackiness to the printed layer of the film and a work having a transfer surface by the work water submersion lifting means are immersed under the storage water surface through the hydraulic transfer film surface to apply water pressure. And a fifth step of raising the work on the reservoir water by and a fourth step of transferring the printing layer of the hydraulic transfer film on the transfer target surface, the workpiece submerged repatriation unit.

  In the above configuration, the hydraulic transfer film floated on the upper surface of the stored water by the floating frame is blocked by the wall surface of the floating frame even if it is swollen, dissolved, or liquefied by water or an activation solvent. The width of the hydraulic transfer film swollen, dissolved and liquefied with a simple structure can be maintained at an optimum value without expanding, and the floating transfer tank area is connected to the reservoir water surface from the swelling tank area by the floating frame. It can be moved smoothly in a short time, and there is no need to increase the length of the water tank, production can be performed for each product, and the entire apparatus can be made compact.

  Further, the hydraulic transfer device of the present invention comprises a swollen water tank area in which a hydraulic transfer film having a pattern formed of a water-insoluble printing layer on a water-soluble base layer is swollen, and an activator is applied to the hydraulic transfer film. After imparting flexibility and adhesiveness to the print layer, a work having a transfer surface is immersed under the water surface via the hydraulic transfer film, and the water pressure is used to transfer the print layer to the transfer surface using water pressure. A swelled water tank area and the hydraulic transfer water tank area are connected by the same reservoir water surface, and have a floating frame that floats on the connected reservoir water surface and can be freely moved by a driving means. Is.

  In the above configuration, even if the hydraulic transfer film floated on the upper surface of the stored water is swelled, dissolved, or liquefied by water or an active solvent, it is blocked by the wall surface of the floating frame, so it cannot be expanded beyond a predetermined size. It is possible to maintain the optimum expansion of water-soluble films and printed layers by swelling, dissolution, and liquefaction with a simple structure, and even between stationary water tanks, movement between the swollen water tank area and the hydraulic transfer water tank area Therefore, it is not necessary to lengthen the length of the water tank, and the entire apparatus can be finished compactly.

  According to the hydraulic transfer method of the present invention, the hydraulic transfer film floated on the upper surface of the stored water by the floating frame is blocked by the wall surface of the floating frame even if it is swollen, dissolved, or liquefied by water or an activation solvent. The width of the hydraulic transfer film swollen, dissolved, and liquefied with a simple structure can be maintained at the optimum value, and the storage water surface is connected from within the swollen water tank area by a floating frame. It can be smoothly moved to the hydraulic transfer water tank area in a short time, it is not necessary to lengthen the length of the water tank, it can be produced for each product, and the entire apparatus can be finished compactly.

  Further, according to the hydraulic transfer device of the present invention, the hydraulic transfer film floated on the upper surface of the stored water is blocked by the wall surface of the floating frame even if it is swollen, dissolved, or liquefied by water or an active solvent. There is no further expansion, and the expansion of swelling, dissolution and liquefaction of water-soluble films and printed layers can be maintained at an optimum value with a simple structure. Therefore, it is not necessary to increase the length of the water tank, and the entire apparatus can be made compact.

The invention of the hydraulic transfer method according to claim 1 of the present invention,
A hydraulic transfer film with a water-soluble base layer and a pattern formed of a water-insoluble printing layer is covered with the base layer facing the storage water surface without coming into contact with the inner wall surface of the floating frame floating on the storage water surface in the swollen water tank area. The first step of floating in a surrounding state and swelling for a predetermined time, and moving the floating frame surrounded by the hydraulic transfer film from the swollen water tank region to the hydraulic transfer water tank region to which the stored water surface is connected in the floating state. A second step and a third step of applying an activator from the upper surface of the hydraulic transfer film that has been moved together with the floating frame by an activator application means, and imparting flexibility and tackiness to the printing layer of the hydraulic transfer film A work having a surface to be transferred by the work water submersing and lifting means is immersed under the storage water surface through the water pressure transfer film surface, and the print layer of the water pressure transfer film is transferred to the water transfer using the water pressure. A hydraulic transfer film floated on the upper surface of the stored water by the floating frame is water or activated. Even if it swells, dissolves, or liquefies with a solvent, it is blocked by the wall surface of the floating frame, so it does not expand beyond the specified size, and the width of the hydraulic transfer film swollen, dissolved, or liquefied with a simple structure is the optimum value. Can be maintained smoothly, and can be moved smoothly from the swollen water tank area to the hydraulic transfer water tank area where the reservoir water surface is connected by the floating frame in a short time, and it is not necessary to increase the length of the water tank. The entire device can be made compact.

  According to a second aspect of the invention, there is provided a hydraulic pressure transfer method according to the first aspect of the present invention. In the fifth aspect, the workpiece submerging and lifting means lifts the workpiece from the stored water surface. The workpiece having a transfer surface attached to the workpiece submerging and lifting means is immersed under the water surface through the hydraulic transfer film surface, and the print layer is transferred to the transfer surface using water pressure. After the fourth step, after the floating frame is fixed to the workpiece submerging and lifting means, the floating frame is also removed from the storage water surface by raising the workpiece submerging and lifting means, so that the next floating frame is placed in the hydraulic transfer tank area. It can be moved and continuous processing is possible.

  The invention of the hydraulic transfer device according to claim 3 is a swelling water tank region for swelling a hydraulic transfer film having a pattern formed of a water-insoluble base layer and a water-insoluble printing layer, and an activator for the hydraulic transfer film. After applying and imparting flexibility and tackiness to the printed layer, a work having a transferred surface is immersed under the water surface through the hydraulic transfer film, and the printed layer is applied to the transferred surface using water pressure. It has a hydraulic transfer water tank area to be transferred, and the swelling water tank area and the hydraulic transfer water tank area are connected by the same reservoir water surface, float on the connected reservoir water surface, and can be freely moved by a predetermined driving means. The hydraulic transfer film floated on the upper surface of the stored water is blocked by the wall of the floating frame even if it swells, dissolves, or liquefies with water or an active solvent. Does not expand, simple construction The expansion of the water-soluble film and printed layer due to swelling, dissolution, and liquefaction can be maintained at the optimum value, and even in a static water tank, the movement between the swollen water tank area and the hydraulic transfer water tank area can be performed in a short time. Since it is possible, it is not necessary to lengthen the length of the water tank, and the entire apparatus can be finished compactly.

  According to a fourth aspect of the present invention, there is provided a hydraulic transfer device according to the third aspect of the present invention, wherein a hydraulic transfer film insertion means is disposed above the swelling water tank area, and an activator coating means is provided above the hydraulic transfer water tank area. Work water submersion / lifting means is disposed, and the hydraulic transfer film inserting means, the activator application means, and the work water submersion / lifting means each have a position detection means of a floating frame floating on the storage water surface. Even if it is a hydrostatic pressure transfer device, the transfer film insertion means, the activator application means, and the work water immersion / lifting means start operation continuously by the position detection means of the floating frame. Continuous production is possible.

  The invention of the hydraulic transfer device according to claim 5 is the hydraulic transfer film according to claim 3 or 4, wherein the drive means has a guide portion that can set the position of the floating frame in a floating state. However, it is a moving means that guides the floating frame in the enclosed state, and it moves, preventing the spread of the hydraulic transfer film swollen / dissolved / liquefied, and the floating frame is always in a floating state, With respect to the movement of the driving means, the floating frame and the hydraulic transfer film in the floating frame can be smoothly moved, and the deformation due to the stop of driving can be eliminated, so that efficient production is possible.

  The invention of the hydraulic transfer device according to claim 6 is the invention according to any one of claims 3 to 5, wherein the hydraulic transfer device can be opened and closed between the swollen water tank area and the hydraulic transfer water tank area connected by the stored water. It has a breakwater wall, and it can block the waves caused by vibration in the water pressure transfer area when the work is submerged during water pressure transfer by the breakwater, and it is defective due to the shaking of the floating frame in the swollen water tank area Can be suppressed.

  The invention of the hydraulic transfer device according to claim 7 is the invention according to any one of claims 4 to 6, wherein the workpiece submerging and lifting means is provided with a transfer jig to which the workpiece is attached, and the floating frame is When the transfer jig is lifted by the workpiece submersion and lifting means, the floating frame is removed from the storage water surface together with the transfer jig, so that the next floating frame is hydraulically removed. It can be moved to a transfer water tank and can be continuously processed.

  The invention of the hydraulic transfer device according to claim 8 is the invention according to claim 7, wherein the transfer jig and the workpiece submerging and lifting means are detachable, and the hydraulically transferred workpiece is transferred. The jig and the floating frame can be removed as a unit, and when cleaning in the next process, it can be cleaned together, which is efficient.

  Hereinafter, an embodiment of a water pressure transfer device and a water pressure transfer method according to the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a schematic cross-sectional view of a hydraulic transfer device according to Embodiment 1 of the present invention. FIG. 2 is a schematic view of the first step showing the state of swelling. FIG. 3 is a schematic view showing a positional relationship in which the guide portion of the driving means, the floating frame, and the hydraulic transfer film are floated on the stored water surface. FIG. 4 is a schematic view of the third step of applying the activator by the activator applying means. FIG. 5 is a schematic view of a fourth process in which the work is immersed below the stored water surface by the work water submersion and lifting means. FIG. 6 is a perspective view of the floating frame according to the first embodiment. FIG. 7 is a cross-sectional view showing a state in which the workpiece and the transfer jig are attached to the jig cradle. FIG. 8 is a process diagram showing a water pressure transfer process according to the first embodiment of the present invention.

  As shown in FIG. 1, the hydraulic transfer device 50 according to the first embodiment includes an insertion means 52 for a hydraulic transfer film 51 in which a pattern is formed by a water-insoluble printing layer on a water-soluble base layer, and stored water 53. It consists of a filled water tank 54, an activator application means 55, and a workpiece submersion and lifting means 56. The water tank 54 includes a swelling water tank area 57 and a hydraulic transfer water tank area 58, and a floating frame 59 is installed on the surface of the stored water 53 in the swelling water tank area 57.

  As shown in FIG. 2, the insertion means 52 for the hydraulic transfer film 51 has a transfer conveyor 60, an up / down lift cylinder 61, and a suction cup 62 for adsorbing and separating the hydraulic transfer film 51 freely by decompression and purging. The prepared hydraulic transfer film 51 cut to a predetermined size is transferred while being sucked to the suction cup 62. When the film is left on the surface of the swollen water tank area 57 by the up-and-down lift cylinder 61, the suction cup The hydraulic transfer film 51 is inserted so as to float without contacting the inner wall surface of the floating frame 59 that floats on the surface of the stored water 53 in the swollen water tank area 57 by stopping and purging the pressure reduction at 62.

  As shown in FIG. 3, the swollen water tank area 57 is filled with the reservoir water 4 connected to the hydraulic transfer water tank area 58, and a pair of both sides 63 of the water tank 54 of the swollen water tank area 57 and the hydraulic transfer water tank area 58 are provided on the side surfaces 63. The drive means 64 is arranged, and the drive means 64 drives a chain having a guide portion 65 that can set the position of the floating frame 59 in a floating state by a drive motor 88.

  As shown in FIG. 4, above the hydraulic transfer water tank 58, an activator application means 55 for applying an activator, a work 67 having a transfer surface 66 and a transfer jig 68 are provided in a hydraulic transfer water tank area 58. Work water submersion and lifting means 56 that can be submerged under the surface of the stored water 53 is located.

  As the activator application means 55, a nozzle 69 having a fine hole in a straight line is run at a predetermined speed on a spray guide 70 that is horizontal with respect to the surface of the stored water 53. Designed to fire a certain amount.

  As shown in FIGS. 5 and 7, the work 67 submerging / pumping means 56 includes a submersion / pumping cylinder 71 and a jig pedestal 72, and the work 67 and the transfer jig 68 are attached in an attachment area 73. The jig moving carriage 74 is integrated and attached to the jig moving carriage 74, and the jig moving carriage 74 is conveyed to the hydraulic pressure transfer water tank area 58 by the conveying conveyor 75, and is moved up and down by the submersible lifting cylinder 71 by being coupled to the jig receiving base 72. Can be done.

  As shown in FIG. 6, the floating frame 59 is made of a closed cell urethane foam material having a specific gravity of 1 or less so as to float on water, and is hydraulically transferred so as to conform to the dimensions of the work 67 having the transfer surface 66. The opening 76 has a size that allows the film 51 to enter. Further, a metal plate 78 having a surface-treated adherence magnetism is embedded in the four end portions 77 of the floating frame 59, and the entire floating frame 59 is coated in order to improve water and chemical resistance.

  In addition, a wave barrier 79 that can be freely opened and closed is provided between the swollen water tank area 57 and the hydraulic transfer water tank area 58 connected by the stored water 53, and the floating frame 59 is moved from the swollen water tank area 57 by the driving means 64. It is opened only when moving to the transfer water tank area 58.

  The insertion means 52 of the hydraulic transfer film 51, the activator application means 55, and the work water immersion / lifting means 56 are positions for confirming the fixed position of the floating frame 59 floating on the surface of the stored water 53 by the pyroelectric sensor. It has detection means 80, 81, 82.

  In addition, a septic tank 83 is provided in the stored water 53 in the hydraulic transfer water tank area 58 to prevent dust, transfer film debris, and the like from floating in the stored water 53. In order to prevent the concentration of the polyvinyl alcohol resin 53, which is a water-soluble component 53, from being melted and increased in concentration, it is circulated through a processing apparatus (not shown).

  Further, a booth 85 is provided so as to cover the hydraulic transfer water tank area 58 so that the scent of the activator and the like is not leaked out by the arousing fan 86.

  Next, the operation of the water pressure transfer method of this embodiment having such a configuration will be described with reference to the process diagram of FIG.

  As a first step, the floating frame 59 is placed on the surface of the stored water 53 in the swollen water tank area 57 so that a part of the floating frame 59 fits into the guide portion 65 that is the driving means 64. That is, the floating frame 59 is set in a state of floating on the surface of the stored water 53 without being fixed to the guide portion 65.

  Next, when the presence of the floating frame 59 is detected by the position detection means A80 of the swollen water tank area 57, the up / down lifting / lowering cylinder 61 becomes operable, and the swollen water tank is in a state where the hydraulic transfer film 51 is adsorbed by the suction cup 62 of the insertion means 52. It is quietly set in the floating frame 59 on the surface of the stored water 53 in the region 57 without contacting the inner wall surface.

  As soon as the hydraulic transfer film 51 floats on water, the water-soluble base film made of polyvinyl alcohol resin starts to swell and dissolve and softens. In the initial stage, swells are formed to swell from one side, but a smooth flat surface is formed when water reaches the entire base film. The temperature of the stored water is suitably about 30 ° C., and the swelling time is about 1 to 3 minutes.

  When the first step of swelling the hydraulic transfer film 51 is finished, the second step is started. That is, when the swelling time elapses, the wave detection wall 79 is opened by the time detection means, the drive means 64 is driven, the guide portion 65 is moved to the hydraulic transfer water tank area 58, and the floating portion that is fitted into the guide portion 65 at the same time. The frame 59 is moved from the swelling water tank area 57 into the hydraulic transfer water tank area 58.

  When the floating frame 59 is moved, the hydraulic transfer film 51 located in the floating frame 59 is also moved, and proceeds into the hydraulic transfer water tank area 58. At this time, the force that the water-soluble film of the hydraulic transfer film 51 dissolves in the stored water 53 hits the inner wall surface of the floating frame 59, and the side surface of the floating frame 59 and the hydraulic transfer film 51 are maintained at a certain distance. Thus, even if the floating frame 59 moves, it does not come into close contact with the inner wall surface of the floating frame 59, so that it can move smoothly so as to slide on the water surface.

  Next, the activator application step of the third step will be described. When the floating frame 59 is positioned in the hydraulic pressure transfer water tank area 58, the floating frame 59 is detected by a pyroelectric sensor as the position detection means B81 of the activator application means 55, and the activator application means 55 from above the hydraulic transfer film 51. The activator is applied uniformly.

  As the activator application means 55, in order to apply to the unstable hydraulic transfer film 51 floating on the water surface, a method in which a pressure such as air pressure is not so much applied is good. A method of applying the activator at a low pressure from a nozzle in which is arranged is recommended. The activation time for imparting flexibility and tackiness to the printing layer of the hydraulic transfer film 51 requires time until the water-insoluble printing layer is softened, dissolved, or liquefied, and is about 20 seconds.

  Next, the fourth step will be described. When the activation process is completed, the work 67 having the transfer surface 66 is immersed under the water surface of the stored water 53 through the water pressure transfer film 51 by the work water submersing and lifting means 56, and the water pressure is used to print the water pressure transfer film 51. The process of transferring the layer to the transfer surface 66 is started. That is, the work water submersion and lifting means 56 is operated after the position detection means C82 detects that the floating frame 59 is in a fixed position.

  The activator is applied to the jig pedestal 72 of the workpiece submerging / pumping means 56 by the submerged / pumping cylinder 71 to which the hydraulic pressure transfer jig 68 and the jig pedestal carriage 74 to which the work 67 is previously attached are fixed in the attachment area 73. The work 67 attached to the transfer jig 68 is lowered by the water submersion lifting means 56 at a timing when the softening / liquefaction has been applied after being applied to the hydraulic transfer film 51, and is gently submerged via the hydraulic transfer film 51. Is done.

  The activated printing layer adheres to the transfer surface 66 of the submerged workpiece 67 by the pressure of the stored water 53. In particular, the liquefied printing surface having a degree of freedom also on the curved surface portion is the curved surface of the workpiece 67. It will be in close contact with the shape.

  Next, the transfer jig 68 and the work 67 are lifted from the water tank 54 by moving the jig cradle 72 upward by the submersion / lifting cylinder 71 which is the work submersion / pumping means 56, and the pumping water pressure is the fifth step. Complete the transfer process. In this fifth step, magnets are attached to the workpiece lifting means 56 so as to attract the metal plates 78 attached to the four sides of the floating frame 59. When the workpiece 59 is pulled up, the floating frame 59 is also stored in the stored water 53 at the same time. It will be removed from the surface of the water.

  Thereafter, the jig cradle 72 returned to the uppermost position is moved to the jig work removal area 73 by the transfer conveyor 75, the transfer jig 68 is removed, and a cleaning process for cleaning all remaining water-soluble films is performed. Moved.

  Further, during the work submerging and drawing work, by forming a wave preventing wall 79 that isolates the swelling water tank area 57 and the hydraulic transfer water tank area 58, the influence of the waves caused by the hydraulic transfer work is minimized. Can be suppressed.

  The removed transfer jig 68, the work 69, and the floating frame 59 are integrally removed from the jig receiving carriage 74, and are washed together with the floating frame 59 in a separate process. It will be finished by clear painting.

  By efficiently dividing the flow of this water pressure transfer work into work in the swelling water tank area 57 and work in the water pressure transfer water tank area 58, the floating water tank area 57 and the water pressure transfer are instantaneously utilized using the floating frame 59. By moving the water tank area 58, a compact apparatus capable of continuous work without using a flowing water tank is obtained.

  When hydraulically transferring a different work 67, the size of the opening of the floating frame may be adjusted, and the hydraulic transfer film 51 may be cut into a predetermined size for use. The transfer jig is also a simple foam. Since it can be used, production can be freely performed.

  According to the present invention, a printing layer free from pattern deformation and color blur even when transferred to a curved surface can be accurately hydraulically transferred to the transfer surface of the work, and thus includes a household refrigerator. It can be applied to applications such as home appliances that want to change to a variety of color patterns in a small lot.

Schematic of Embodiment 1 of a water pressure transfer device used in a water pressure transfer method according to the present invention. Schematic of the first step showing the swollen state of the first embodiment Schematic which shows the positional relationship which floated the drive means guide part of the same Embodiment 1, the floating frame, and the hydraulic transfer film on the storage water surface. Schematic of the third step of applying the activator by the activator applying means of the first embodiment Schematic of the 4th process which made the work immerse under the storage water surface by the work water submersion lifting means of the first embodiment. The perspective view of the floating frame of Embodiment 1 Sectional drawing which shows the state with which the workpiece | work and transfer jig | tool of Embodiment 1 were attached to the jig stand. Process drawing showing a water pressure transfer process according to the first embodiment Schematic diagram of a conventional hydraulic transfer device The perspective view which provided the guide frame for preventing the expansion of the conventional hydraulic transfer device

Explanation of symbols

DESCRIPTION OF SYMBOLS 50 Water pressure transfer apparatus 51 Water pressure transfer film 52 Insertion means 53 Reservation water 54 Water tank 55 Activating agent application means 56 Work water submersion lifting means 57 Swelling water tank area 58 Water pressure transfer water tank area 59 Floating frame 64 Drive means 65 Guide part 66 Transfer surface 67 Work 68 Transfer jig 79 Wave barrier 80, 81, 82 Position detection means

Claims (8)

A hydraulic transfer film with a water-soluble base layer and a pattern formed of a water-insoluble printing layer is covered with the base layer facing the storage water surface without coming into contact with the inner wall surface of the floating frame floating on the storage water surface in the swollen water tank area. A first step of floating in a surrounding state and swelling for a predetermined time;
A second step of moving the floating frame surrounded by the hydraulic transfer film from the swollen water tank area to the hydraulic transfer water tank area to which the reservoir water surface is connected in a floating state;
A third step of applying an activator from the upper surface of the hydraulic transfer film that has moved together with the floating frame by an activator application means, and imparting flexibility and adhesiveness to the printing layer of the hydraulic transfer film;
A fourth step of immersing a workpiece having a transfer surface by means of a work water submersion lifting means below the storage water surface via the hydraulic transfer film surface, and transferring the print layer of the hydraulic transfer film to the transfer surface using water pressure. When,
A hydraulic pressure transfer method comprising: a fifth step of lifting the workpiece onto the surface of the stored water by the workpiece submerging and lifting means.   The water pressure transfer method according to claim 1, wherein, as a fifth step of lifting the work from the storage water surface by the work water submersion and lifting means, the floating frame is simultaneously removed from the storage water surface by the work water subtraction and lifting means.   A swelling water tank area that swells a hydraulic transfer film provided with a pattern with a water-insoluble base layer on a water-soluble base layer, and an activator is applied to the hydraulic transfer film to impart flexibility and tackiness to the print layer Then, a work having a transferred surface is immersed under the water surface through the hydraulic transfer film, and has a hydraulic transfer water tank area for transferring the printing layer to the transferred surface using water pressure, and the swelling A water pressure transfer device having a floating frame which is formed by connecting a water tank area and the water pressure transfer water tank area on the same storage water surface, floats on the storage water surface to be connected, and is freely movable by a predetermined driving means.   A hydraulic transfer film insertion means is disposed at the upper part of the swelling water tank area, and an activator application means and a workpiece submersion lifting means are disposed at the upper part of the hydraulic transfer water tank area, and the hydraulic transfer film insertion means and the activator application means are disposed. 4. The hydraulic transfer device according to claim 3, wherein each of the workpiece submersion and lifting means includes a position detection means for a floating frame floating on the stored water surface.   The hydraulic transfer device according to claim 3 or 4, wherein the driving means includes a guide portion that can set a position of the floating frame in a floating state.   The hydraulic transfer device according to any one of claims 3 to 5, further comprising an openable and closable wave barrier between the swelling water tank area and the hydraulic transfer water tank area connected by the stored water.   The hydraulic transfer device according to any one of claims 4 to 6, wherein the workpiece submersion and lifting means is provided with a transfer jig to which a workpiece is attached, and has a detachable means for detachably attaching the floating frame.   The hydraulic transfer device according to claim 7, wherein the transfer jig and the workpiece submerging and lifting means are removable.

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