JP4553713B2 - Hydraulic transfer film supply equipment - Google Patents

Description

The present invention relates to a hydraulic transfer film supply apparatus that cuts a hydraulic transfer film into a use length and supplies the cut film to a water surface of a hydraulic transfer tank.

The film for hydraulic transfer is generally a water-soluble film made of polyvinyl alcohol or the like with a pattern printed layer formed on one side. Recently, however, UV irradiation has occurred between the water-soluble film and the printed layer. In some cases, a water-insoluble curable resin layer is formed as a surface protective coat by curing with, for example.

These hydraulic transfer film products are wound into a roll, and the original roll is composed of a single hydraulic transfer film and a release paper made of polypropylene film or the like on the surface of the printing layer of the hydraulic transfer film. There is a thing with a release paper on which is worn.

By the way, as a method for supplying the water pressure transfer film to the water surface of the water pressure transfer tank, a method for continuously supplying the water pressure transfer film unwound from the raw roll without cutting, and a method for transferring the water pressure transfer film to be transferred. Although there is a method that cuts and supplies to the length of use according to the size of the object, the former continuous supply method is good in productivity, but there is a lot of wasted consumption of hydraulic transfer film, which is unavoidable In addition, since the amount of processing of the residue increases, there is a problem that the running cost is remarkably increased.

On the other hand, the latter fixed-size cut supply method has the advantage that the running cost is not increased because the amount of consumption of the film for hydraulic transfer can be minimized and the amount of processing of the residue is small. Since a device for fully automating this method has not been developed, the hydraulic transfer film unwound from the raw roll is cut in advance according to the size of the transfer object, and the hydraulic transfer film is cut. The actual situation is that the work of floating on the water surface of the hydraulic transfer tank is done manually, and in the case of a film for hydraulic transfer with release paper, the work of peeling the release paper is also done manually. There was a drawback that the productivity of hydraulic transfer was very poor.

Further, when the hydraulic transfer film is floated on the water surface of the hydraulic transfer tank, there is a problem that air bubbles are mixed between the film and the water surface to cause a quality defect such as transfer failure. In order to solve this problem, the front and rear ends of the hydraulic transfer film cut to the use length are lifted so that the film hangs in a U-shape, and the hanged portion is attached to the water surface of the hydraulic transfer tank. Although proposals have been made to prevent air bubbles from entering between the water pressure transfer film and the water surface (see Patent Document 1), especially when the size of the water pressure transfer film is large. If the film width is large, when the front and rear ends are lifted, wrinkles, twists, distortion, etc. are likely to occur in the width direction of the film. There is a risk that air bubbles may be mixed in when the water is allowed to land.
JP-A-4-43100

The present invention automates a series of operations for cutting a hydraulic transfer film into a working length and supplying it to the water surface of a hydraulic transfer tank in order to improve the productivity of hydraulic transfer by a fixed-size cut supply system. To prevent quality defects such as defects from occurring, when supplying a hydraulic transfer film that has been cut to a working length to the water surface of the hydraulic transfer tank, make sure that no bubbles are mixed between the film and the water surface. Doing this is a technical challenge.

In order to solve the above-mentioned problems, the present invention cuts the hydraulic transfer film unwound so as to face the water surface of the hydraulic transfer tank from the original roll to a use length with a sheet cutter and forms the water surface of the hydraulic transfer tank. A hydraulic transfer film supply device for supplying, before cutting the hydraulic transfer film with a sheet cutter, the front part of the film is rolled up from one corner side, and the front part and the rear part are brought close to each other, In the middle part of the film, a slant slanting in the left-right direction is generated, and the slanted lower end part of the slack is landed on the water surface of the hydraulic transfer tank, and then the front part of the film is turned back so that the hydraulic transfer tank A water landing mechanism for landing on the water surface is provided.

The present invention rolls up the front part of the hydraulic transfer film unwound from the raw roll so as to face the water surface of the hydraulic transfer tank from one corner side, and brings the front part and the rear part close to each other, Create a slack slanting in the left-right direction in the middle part, land the slanted lower end of the slack on the water surface of the hydraulic transfer tank, and then turn back the front part of the film that has been rolled up. By allowing the film to land on the surface of the water, the middle part of the film gradually lands on the slanted lower end part side of the slack, and the slanted slanted lower end part of the film. Since water gradually arrives from one side to the front corner, it is ensured that air bubbles are mixed between the water surface of the hydraulic transfer tank and the front and intermediate parts of the hydraulic transfer film to be landed on the water surface. To prevent It can be.

That is, as in Patent Document 1, when the front and rear ends of the hydraulic transfer film are lifted to make the entire film hang down in a U-shape, and the water is allowed to land from the hanged portion to the front and rear ends, the film width is large. In some cases, bubbles may be mixed in. However, according to the present invention, bubbles can be reliably prevented even when the film width is large.

The best mode of the hydraulic transfer film supply apparatus according to the present invention is that before the hydraulic transfer film unwound from the original roll to face the water surface of the hydraulic transfer tank is cut with a sheet cutter, the film The front part is raised from one corner side, the front part and the rear part are brought close to each other, and a slack slanted in the left-right direction is generated in the middle part of the film, and the slanted lower end part of the slack is formed on the water surface of the hydraulic transfer tank. A manipulator that lands on the water surface of the hydraulic transfer tank so that the front part of the film is turned back after landing, and the rear part of the film that causes the slack by lifting the front part from one corner side with the manipulator Is provided with a water landing mechanism composed of a cutter base of a sheet cutter that lifts the slack from the diagonal side of the one corner and narrows the width of the slack.

1 to 8 schematically show an example of a hydraulic transfer film supply apparatus according to the present invention and a series of operations thereof, and FIG. 9 shows a main operation thereof. The hydraulic transfer film supply device of this example uses a hydraulic transfer film 3 that is unwound after peeling off the release paper 2 from the original roll R of the hydraulic transfer film sheet 1 with release paper according to the size of the transfer object. The sheet cutter 4 to be cut into lengths and the front end of the hydraulic transfer film 3 that is unwound while peeling the release paper 2 from the raw roll R are gripped to bring the film 3 into contact with the water surface W of the hydraulic transfer tank 6. A clamping device 5 to be supported, and a water landing mechanism for landing the water pressure transfer film 3 between the film 3 and the water surface W of the water pressure transfer tank 6 so as not to mix air bubbles.

In order to prevent the residue of the film for water pressure transfer remaining on the water surface W from adhering to the surface of the transfer object, the water pressure transfer tank 6 is removed from one end of the water pressure transfer tank 6 to the other side. A surface flow that pushes toward the end side is generated, and a sheet cutter 4 is installed upstream of the surface flow, and a clamp device 5 is installed downstream.

The sheet cutter 4 is configured to U-turn the take-up roll 8 that winds only the release paper 2 from the original roll R of the hydraulic transfer film sheet 1 with release paper, and the release paper 2 that is taken up by the take-up roll 8. A release guide roll 9 for automatically peeling the hydraulic transfer film 3 from the release paper 2 by wrapping, and conveying the hydraulic transfer film sheet 1 with release paper in an unwinding direction and an unwinding direction. A pair of transport rolls 10 and 10 capable of rotating in the forward and reverse directions, and a pair of transport rolls capable of rotating in the forward and reverse directions for transporting the release paper 2 in the direction in which the release paper 2 is wound up by the take-up roll 8 and in the direction of unwinding from the take-up roll 8. 11 and 11 and the release sheet 2 is peeled off by the peeling guide roll 9 and the hydraulic transfer film 3 fed out by the pair of feed rolls 17 and 17 is cut by the cutter blade 13 and the cutter base 14. And a slider 16 that reciprocally travels on a gantry rail 15 provided along the length direction of the hydraulic transfer tank 6. And is configured to be integrally movable in a direction approaching and moving away from the clamp device 5.

The cutter blade 13 is configured to be advanced and retracted with respect to a cutting position for cutting the hydraulic transfer film 3 by a cylinder (not shown) or the like, and the cutter base 14 is formed of a sector board. Rotating in the horizontal direction parallel to the water surface W of the water pressure transfer tank 6 with the position corresponding to the essential part of the fan as a fulcrum, and moving forward and backward with respect to the cutting position where the water pressure transfer film 3 is cut by the cutter blade 13 It is comprised so that it can be made.

The clamping device 5 is configured such that the front end of the hydraulic transfer film 3 that is peeled off by the peeling guide roll 9 of the sheet cutter 4 and fed out by the feed rolls 17 and 17 is spaced along the width direction of the film 3. It consists of a plurality of clamps 18a to 18c that can be detachably held.

In addition, the water landing mechanism is a hydraulic transfer film 3 unwound so as to face the water surface W of the hydraulic transfer tank 6 while peeling the release paper 2 from the original roll R of the hydraulic transfer film sheet 1 with release paper. Before cutting the sheet 3 into the length to be used by the cutter body 12, the front part 3 a of the film 3 is rolled up from one corner C 1 side, and the front part 3 a and the rear part 3 c are brought close to each other, so that the film 3 9b, a slanting slanting in the left-right direction is generated, and the slanting lower end of the slacking is landed on the water surface W of the hydraulic transfer tank 6, and then the film 3 is rolled up. The manipulator 19 which makes the front portion 3a roll back to the water surface W of the water pressure transfer tank 6, and the water transfer film 3 in which the front portion 3a is lifted from one corner C1 by the manipulator 19 to cause slack. rear 3c the lift from the diagonal side of the corner C1 of the front 3a as in FIG. 9 (a), is composed of a cutter block 14 for narrowing the slack of width that caused the intermediate portion 3b. That is, the cutter base 14 that can be advanced and retracted to the cutting position where the hydraulic transfer film 3 is cut by the cutter blade 13 forms part of the water landing mechanism.

The manipulator 19 includes a boom 20 in which the clamps 18a to 18c of the clamp device 5 are arranged in parallel at a constant interval, and a front portion 3a of the hydraulic transfer film 3 whose front end is gripped by the clamps 18a to 18c of the clamp device 5 at one corner. It is composed of a cylinder 21 that tilts the boom 20 so as to be lifted from the C1 side and turned back to one corner C1 side, and a base 22 that pivots the boom 20 integrally with the cylinder 21 in the horizontal direction. It is installed so as to be movable along the gantry rail 15 in a direction approaching and separating from the sheet cutter 4.

The above is the configuration of the water pressure transfer film supply apparatus shown in this example, and a series of operations for supplying the water pressure transfer film 3 to the water surface W of the water pressure transfer tank 6 by the apparatus will be described. First, as shown in FIG. 1, the slider 16 on which the cutter body 12 of the sheet cutter 4 and the peeling guide roll 9 are moved is moved in a direction approaching the clamp device 5 and at the same time as the moving speed of the slider 16. When the film sheet 1 is unwound from the original roll R of the hydraulic transfer film sheet 1 with release paper by the length corresponding to the moving distance, the release paper 2 wound on the take-up roll 8 is simultaneously removed. Unwind from the roll 8.

Then, as shown in FIG. 2, when the slider 16 reaches a position close to the clamping device 5, the release paper 2 is peeled off by the peeling guide roll 9 installed on the slider 16, and the hydraulic transfer film fed out by the feed rolls 17 and 17. 3 is gripped by the clamps 18a to 18c of the clamp device 5, and the slider 16 is moved in a direction away from the clamp device 5 by a certain distance substantially corresponding to the use length of the hydraulic transfer film 3, and at the same time, the slider The release paper 2 is wound around the take-up roll 8 by a length corresponding to the moving distance at the same speed as the moving speed 16, and the release paper 2 is removed from the hydraulic transfer film 3 held at the front end by the clamp device 5. And the hydraulic transfer film 3 from which the release paper 2 has been peeled is supported in a state of facing the water surface W of the hydraulic transfer tank 6 as shown in FIG.

Next, as shown in FIG. 3, the cutter base 14 is advanced to a cutting position where the hydraulic transfer film 3 is cut by the cutter blade 13, and the rear portion 3c of the hydraulic transfer film 3 is lifted by the cutter base 14, as shown in FIG. The boom 20 of the manipulator 19 is tilted and swiveled, and the front portion 3a of the hydraulic transfer film 3 held at the front end by the clamp device 5 provided on the boom 20 is raised from the one corner C1 side. Is moved to the sheet cutter 4 side, and as shown in FIG. 9A, a slack slanting in the left-right direction is generated in the intermediate part 3b of the hydraulic transfer film 3, and the slanting lower end of the slack is formed in the hydraulic transfer tank 6. Make the water surface W land.

Next, as shown in FIG. 9B, the front portion 3a of the hydraulic transfer film 3 rolled up from the one corner C1 side by the boom 20 of the manipulator 19 is turned back toward the one corner C1 side (see FIGS. 5 and 6). At the same time, the gripping state of the front end of the hydraulic transfer film 3 by the clamps 18a to 18c of the clamp device 5 is sequentially released from the other corner C2 side closer to the water surface W than the corner C1, and the intermediate portion of the hydraulic transfer film 3 is released. At the same time, the front part 3a of the film 3 is moved forward from the slanting lower end part of the slackness of the intermediate part 3b. The water is gradually landed toward one corner C1 side of 3a.

When the front portion 3a and the intermediate portion 3b of the water pressure transfer film 3 land on the water surface W of the water pressure transfer tank 6 as shown in FIG. 9C, the cutter blade 13 is used for water pressure transfer as shown in FIG. The film 3 is advanced to the cutting position of the film 3, and the film 3 is cut into a use length. At this time, the water pressure transfer film 3 is in tension because the front part 3a and the intermediate part 3b that have landed on the water surface W of the water pressure transfer tank 6 are pulled by the resistance of the surface flow generated on the water surface W. The cutter blade 13 can be easily and reliably cut.

Then, when the hydraulic transfer film 3 is cut by the cutter blade 13, as shown in FIG. 8, the cutter base 14 moves backward from the cutting position of the hydraulic transfer film 3 and is lifted by the cutter base 14. The rear part 3 c of the film 3 is gradually landed on the water surface W of the hydraulic transfer tank 6. In this way, when the hydraulic transfer film 3 cut to the use length is supplied to the water surface W of the hydraulic transfer tank 6, the film 3 does not interfere with the transfer of the transfer object to be hydraulically transferred. The clamp device 5 and the slider 16 are retracted from the position shown in FIG. 8 to the original position shown in FIG. When the slider 16 is retracted, the release paper 2 is wound around the take-up roll 8 by the length corresponding to the movement distance at the same speed as the movement speed, and at the same time, the hydraulic transfer film sheet 1 with the release paper is provided. Is rewound onto the original roll R.

As described above, according to this embodiment, the release paper 2 is peeled off from the original roll R of the hydraulic transfer film sheet 1 with release paper so that the hydraulic transfer film 3 faces the water surface W of the hydraulic transfer tank 6. A series of operations for unwinding, cutting the hydraulic transfer film 3 to the use length corresponding to the size of the transfer object, and supplying it to the water surface W of the hydraulic transfer tank 6 is fully automated, and using a fixed-size cut supply system. The productivity of hydraulic transfer can be dramatically improved.

Further, the front portion 3a of the water pressure transfer film 3 unwound so as to face the water surface W of the water pressure transfer tank 6 is rolled up from one corner C1 side, and the front portion 3a and the rear portion 3c are brought close to each other, so that the film 3, a slanting slant in the left-right direction is generated in the middle part 3 b, and the slanted lower end part of the slack is landed on the water surface w of the hydraulic transfer tank 6, and then the front part 3 a of the film 3 that has been rolled up is turned back In this way, when the water is transferred onto the water surface W of the hydraulic transfer tank 6, the intermediate portion 3b of the film 3 gradually lands on the slanted lower end portion side of the intermediate portion 3b from the inclined lower end portion side to the inclined upper end portion side. Further, the front part 3a of the film 3 is also gradually landed from the slanting lower end side of the slack generated in the intermediate part 3b to one corner side of the front part 3a, so that the water surface W of the hydraulic transfer tank 6 and the water surface thereof are attached. Water pressure transfer fluid It is possible to reliably prevent the air bubbles between the front 3a and the intermediate portion 3b of the arm 3 is mixed. In particular, as in this embodiment, the manipulator 19 lifts the front portion 3a of the film 3 from one corner C1 side to cause slack in the middle portion 3b of the film 3 that is inclined in the left-right direction. If the rear part 3c is lifted from the diagonal side of the one corner C1 of the front part 3a and the width of the slack is narrowed, the landing width of the slanted lower end part of the slack is narrowed, and air bubbles are prevented more reliably. Can do. In this embodiment, the manipulator 19 is moved to the slider 16 side of the sheet cutter 4 to cause the slack, but the slider 16 may be moved to the manipulator 19 to cause the slack.

10 and 11 are diagrams showing another example of the hydraulic transfer film supply apparatus according to the present invention. The apparatus of this example uses an original fabric roll R made only of the hydraulic transfer film 3 and does not need to peel off the release paper, so the configuration of the sheet cutter is different from the apparatus of Example 1.

The sheet cutter 40 shown in this example uses the feed rolls 17 and 17 for unwinding the hydraulic transfer film 3 from the raw roll R and the hydraulic transfer film 3 unwound by the feed rolls 17 and 17 to the use length. The cutter blade 13 and the cutter base 14 to be cut are provided, and the entire sheet cutter 40 reciprocates on the base rail 15 installed along the length direction of the hydraulic transfer tank 6, Similar to the slider 16, it is configured to move in a direction approaching and moving away from the clamping device 5. In addition, since the other structure is common in the apparatus of Example 1, the same code | symbol is attached | subjected to the common part and detailed description is abbreviate | omitted. The operation of causing the water pressure transfer film 3 to land on the water surface W of the water pressure transfer tank 6 is the same as that of the apparatus of the first embodiment.

The present invention can improve the productivity and quality of hydraulic transfer, and at the same time, can contribute to resource saving by reducing the consumption of the hydraulic transfer film.

The figure which shows an example of the film supply apparatus for hydraulic transfer which concerns on this invention The figure which shows the operation | movement which unwinds the film for hydraulic transfer from an original fabric roll with the apparatus of FIG. The figure which shows the operation | movement which makes the film for water pressure transfer face the water surface of a water pressure transfer tank with the apparatus of FIG. The figure which shows the operation | movement which raises the front part of the film for hydraulic transfer from one corner side with the apparatus of FIG. The figure which shows the operation | movement which loosens the intermediate part of the film for hydraulic transfer with the apparatus of FIG. 1, and makes the intermediate part land on the water surface of a hydraulic transfer tank The figure which shows the operation | movement which rolls back the front part of the film for hydraulic transfer which was rolled up with the apparatus of FIG. The figure which shows the operation | movement which rolls back the front part of the film for hydraulic transfer rolled up with the apparatus of FIG. 1, and makes it land on the water surface of a hydraulic transfer tank The figure which shows the operation | movement which cuts the film for hydraulic transfer to the use length with the apparatus of FIG. 1, and supplies it to the water surface of a hydraulic transfer tank The figure which shows the operation | movement which makes the water pressure transfer film land on the water surface of a water pressure transfer tank with the apparatus of FIG. The figure which shows the other example of the film supply apparatus for hydraulic transfer which concerns on this invention The figure which shows the operation | movement which unwinds the film for hydraulic transfer from an original fabric roll with the apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hydraulic transfer film sheet with release paper R Original roll of hydraulic transfer film sheet with release paper 2 Release paper 3 Hydraulic transfer film 3a Front part of hydraulic transfer film 3b Intermediate part of hydraulic transfer film 3c For hydraulic transfer Rear part of film C1 One corner of front part of film for hydraulic transfer 4 Sheet cutter 5 Clamping device 6 Water transfer tank W Water surface of hydraulic transfer tank 8 Winding roll 9 Separation guide roll 12 Cutter body 13 Cutter blade 14 Cutter base 16 Slider 18a Clamp 18b Clamp 18c Clamp 19 Manipulator 20 Boom 40 Sheet cutter

Claims (2)

A hydraulic transfer film supply device that cuts the hydraulic transfer film unwound so as to face the water surface of the hydraulic transfer tank from the raw roll and supplies it to the water surface of the hydraulic transfer tank with a sheet cutter, Before the hydraulic transfer film is cut with a sheet cutter, the front part of the film is rolled up from one corner side, and the front part and the rear part are brought close to each other, and the slack slanted in the lateral direction to the middle part of the film And a landing mechanism that causes the slanted lower end of the slack to land on the water surface of the hydraulic transfer tank, and then landed on the water surface of the hydraulic transfer tank by turning back the front of the film. A hydraulic transfer film supply apparatus characterized by the above. Before the water landing mechanism cuts the hydraulic transfer film with a sheet cutter, the front part of the film is rolled up from one corner side, and the front part and the rear part are brought close to each other so that the intermediate part of the film A manipulator that causes slack slanting in the left-right direction, lands the slanted lower end of the slack on the water surface of the hydraulic transfer tank, and then lands on the water surface of the hydraulic transfer tank by turning back the front part of the film. And a manipulator that raises the front part from one corner side and lifts the rear part of the film that causes the slack from the diagonal side of the one corner, and a cutter base of a sheet cutter that narrows the width of the slack The hydraulic transfer film supply device according to claim 1, which is configured.

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