JP5025500B2 - Hydraulic transfer device - Google Patents

Description

  The present invention relates to a hydraulic transfer apparatus that decorates the surface of a substrate to be transferred by hydraulic transfer.

  In automobile interior parts (for example, steering wheels) and the like, products in which decoration is added to the surface by water pressure transfer in order to improve design and quality have been put into practical use (for example, see Patent Documents 1 and 2). . Here, hydraulic transfer is a technique in which a water-swellable film is floated on the surface of the water, and a predetermined pattern printed on the film (pattern such as wood grain pattern or geometric pattern) is transferred to the surface of the molded body by water pressure. Yes, printing on a three-dimensional curved surface can be performed accurately and easily.

  FIG. 8 shows an example of a conventional hydraulic transfer device 51. In this hydraulic transfer device 51, the transfer film 53 is fed from a film feed roll (not shown) of the film supply device 52, and the transfer film 53 is floated on the water surface of the transfer tank 54 and sent out. A flow having a constant flow velocity is formed in the water W1 in the transfer tank 54, and the transfer film 53 is placed on the flow and transferred, and the transfer film 53 is expanded. In addition, the steering wheel 55 as a transfer base material is conveyed by a robot (not shown) and is in an upright or slanted state so that the lower end side of the steering wheel 55 is submerged. Then, by rotating the steering wheel 55 along the pattern of the transfer film 53, the pattern is transferred in the circumferential direction of the steering wheel 55. Further, in this water pressure transfer device 51, three steering wheels 55 are arranged in parallel to improve productivity, and water pressure transfer of each steering wheel 55 is performed simultaneously. The substrate to be transferred may be a plate-like substrate (for example, a decorative panel covering the upper surface of the armrest) in addition to the annular substrate such as the steering wheel 55. The substrate is transported by a robot or conveyor to perform hydraulic transfer.

If comprised in this way, compared with the case where the annular surface of the steering wheel 55 is pressed against the transfer film 53 and a picture is transferred, it becomes possible to transfer a waste film efficiently and efficiently. In this case, the transfer point is kept at a fixed position by rotating the steering wheel 55. Therefore, by transferring the transfer point to a position where the transfer film 53 swells and is in an optimum state for transfer, the pattern is transferred reliably.
Japanese Patent No. 3225282 Japanese Utility Model Publication No. 3-4508

  However, when a plurality of steering wheels 55 are arranged in parallel as shown in FIG. 8, the steering wheels 55 pull the transfer films 53 to each other, and the transfer films 53 extend to affect the design of the steering wheel 55 after the transfer. End up. In order to keep this design good, it is necessary to provide some space between the steering wheels 55. As described above, in the conventional transfer device 51, there is a limit in improving the yield of the transfer film 53, and there arises a problem that the transfer film 53 between the steering wheels 55 must be discarded.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a hydraulic transfer device that can improve the yield of a transfer film and reliably perform hydraulic transfer to a transfer substrate. Is to provide.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a liquid tank for storing and expanding a hydraulic transfer film having swelling property is stored in the liquid tank and the liquid in the liquid tank. A liquid flow generating means for generating a liquid flow from a receiving side for receiving a film to a discharge side for discharging the film, and transferring a part of the film to the surface of a substrate to be transferred by the action of hydraulic pressure Cutting means for cutting the film along its longitudinal direction before the film is deposited on the liquid to form a plurality of cutting films having a smaller width, and restricting expansion of the cutting film in the width direction. However, the gist of the invention is a hydraulic transfer apparatus comprising a plurality of guide means for guiding the cut film along the direction of the liquid flow.

  According to the first aspect of the present invention, the liquid flow generating means generates a liquid flow in the liquid tank from the receiving side that receives the transfer film to the discharge side that releases the transfer film. Further, the hydraulic transfer film is cut along the longitudinal direction by the cutting means, so that a plurality of cut films having a smaller width are obtained. Thereafter, these cut films are applied to the liquid in the liquid tank. The expansion of the cut film in the width direction is regulated by the plurality of guide means, and the cut film is guided along the liquid flow direction. In this way, the hydraulic transfer film can be cut so as to have an optimum width for hydraulic transfer to the transfer substrate. Wasteful film to be discarded later) can be suppressed. In addition, the transfer film is cut and divided into a plurality of cut films according to each transferred substrate, so that the transferred substrates do not pull the transfer film from each other as in the prior art. The hydraulic transfer to the substrate can be reliably performed. As a result, the yield of the transfer film can be improved, and adverse effects on the design of the substrate to be transferred after hydraulic transfer can be avoided.

  The invention according to claim 2 is the film feeding roll that continuously feeds out the hydraulic pressure transfer film according to claim 1 and is bent in a state in which tension is applied to the film fed out from the film feeding roll. A plurality of tension applying rolls to be supplied to the receiving side of the liquid tank; and an activator coating device for applying an activator to the film fed from the film feed roll, wherein the cutting means is from an activator coating position. Also, the gist is to cut the film at the position of the latter stage.

  According to the second aspect of the present invention, the hydraulic transfer film is continuously fed out by the film feed roll, and the liquid transfer film is bent in a state where tension is applied to the transfer film by the plurality of tension applying rolls. Supplied to the receiving side of the tank. Further, the activator is applied to the film fed from the film feed roll by the activator coating device. Then, the transfer film is cut by a cutting means at a position subsequent to the active agent application position where the active agent is applied. Here, when adopting a configuration in which the activator is applied after the transfer film is cut, there is a problem that the activator enters the gaps between the cut films and the activator coating apparatus becomes dirty. As a countermeasure against this, since it is necessary to devise a method of applying the activator while avoiding the gaps between the cut films in the activator coating apparatus, the cost of the apparatus increases. On the other hand, if the activator is applied before the transfer film is cut as in the present invention, the activator coating apparatus will not be soiled. Therefore, it is not necessary to change the device configuration of the activator coating device, and the device cost can be suppressed. Further, since the transfer film is fluidized and softened by the activator, there is an advantage that the transfer film can be easily cut by the cutting means.

  The gist of the invention described in claim 3 is that, in claim 2, the cutting means cuts the film at a position between a plurality of tension applying rolls arranged at a subsequent stage of the activator application position. .

  According to the invention described in claim 3, since the tension is applied to the transfer film by the tension applying roll at the position between the plurality of tension applying rolls, the transfer film is not wrinkled, and the cutting means does not The transfer film can be cut more accurately.

  The gist of a fourth aspect of the present invention is that, in any one of the first to third aspects, further comprising film pressing means for pressing both ends of the cut film in the width direction before liquid deposition.

  According to invention of Claim 4, since the width direction both ends of each cutting film are hold | suppressed by a film press means, it can prevent that each cutting film overlaps and adheres, and it is in the liquid in a liquid tank. Each cutting film can be made to adhere reliably.

  A fifth aspect of the present invention is the film feeding means according to any one of the first to fourth aspects, wherein the film feeding means is arranged at a subsequent stage of the cutting means so as to pull the cut film so as to be fed to the receiving side of the liquid tank. And a film separating / expanding means that is arranged between the cutting means and the film feeding means and separates the cut films and expands the distance between them by sliding and guiding the cut film in a surface contact state. The gist of the further provisions is as follows.

  For example, when the cut film is sent to the receiving side of the liquid tank, the pitch between the cut films is reduced by the force with which the film feeding means pulls the cut film, so the cut films are likely to overlap each other. As a result, there may be a problem caused by overlapping of the cut films. Therefore, in the invention described in claim 5, before the cut film reaches the film feeding means, the cut films are separated from each other by the film separating / expanding means, and the interval between them is extended. Thereby, since cutting films become difficult to overlap, the malfunction resulting from overlapping cutting films can be prevented.

  A sixth aspect of the present invention is the method according to the fifth aspect, wherein the film separating / expanding means is provided on a base plate having a main surface, and protrudes on the main surface of the base plate, along the moving direction of the cutting film. The gist of the present invention is to have a separation guide that extends long and a film elevation regulating piece that protrudes at least at the rear end of the separation guide and regulates the rising of the cut film relative to the separation guide.

  According to the invention described in claim 6, since the separation guide extends long along the moving direction of the cutting film, the cutting films are formed by sliding and guiding the cutting film in surface contact with the separation guide. Separate little by little. Therefore, when the cut films are separated from each other, a large force is less likely to act on the cut films, and thus the cut films are less likely to wrinkle, which may adversely affect the design of the substrate to be transferred after hydraulic transfer. It can be avoided more reliably. Further, even if the pitch between the cut films is reduced by the rising of the cutting film on the separation guide, the rising of the cutting film is restricted by the film rising restriction piece. Therefore, the cut films are more difficult to overlap.

  The invention according to a seventh aspect is the invention according to the sixth aspect, wherein the film separating / expanding means applies tension to the entire width direction of the cutting film at a position behind the separation guide. The gist of the invention is to have a film-stretching member that stretches the wrinkles.

  According to the seventh aspect of the present invention, even if wrinkles occur in the cut film, the wrinkles can be stretched by the film wrinkle-stretching member, which adversely affects the design of the substrate to be transferred after hydraulic transfer. Can be avoided more reliably.

  As described above in detail, according to the first to seventh aspects of the invention, the yield of the transfer film can be improved, and the hydraulic transfer to the transfer substrate can be performed reliably.

[First Embodiment]

  Hereinafter, a first embodiment embodying the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a hydraulic transfer device 1 (hydraulic transfer device) in the present embodiment.

  As shown in FIG. 1, the hydraulic transfer device 1 is a device that performs hydraulic transfer printing on a steering wheel 3 (substrate to be transferred) using a transfer film 2 (hydraulic transfer film) having swelling properties. This hydraulic transfer device 1 includes a transfer tank 5 (liquid tank) for storing water W1 (liquid), a transfer film feeding device 6 for sending the transfer film 2 floating on the water surface of the transfer tank 5, and a steering wheel 3. A transfer robot (not shown) that pushes the transfer film 2 into the water from above. As the transfer robot, for example, a dipping device disclosed in Japanese Patent Laid-Open No. 2001-277790 is used.

  The transfer tank 5 is divided into a main tank 11 and a sub tank 12 located on the rear side. A recovery pipe 13 is connected to the auxiliary tank 12, and the recovery pipe 13 is connected to a pump 15 via a filter 14. Further, the pump 15 is connected to the front side of the main tank 11 via the supply pipe 16. When the pump 15 is driven, the water W1 in the main tank 11 leaks into the sub tank 12 beyond the side wall of the main tank 11, and the water W1 recovered through the recovery pipe 13 is filtered. After being filtered at 14, it is supplied again into the main tank 11. Thus, the transfer tank 5 of this embodiment is a water tank in which water W1 circulates, and the surface flow (from the receiving side 5a that receives the transfer film 2 to the discharge side 5b that discharges the transfer film 2 ( Liquid flow) is generated on the water surface of the main tank 11. In this embodiment, the recovery pipe 13, the pump 15, and the supply pipe 16 constitute liquid flow generation means.

  The transfer film feeding device 6 includes a film feeding roll 31 that continuously feeds the transfer film 2 and a receiving side of the transfer tank 5 while bending the transfer film 2 fed from the film feeding roll 31 in a tensioned state. A plurality of tension rolls 32 (tension applying rolls) to be supplied to 5a, a feed conveyor 33 provided at the last stage of each tension roll 32, and pulling the transfer film 2 so as to send it to the receiving side 5a of the transfer tank 5, and a transfer film 2 includes an activator application device 34 for applying the activator A1.

  A transfer film 2 having a length of about 600 m and a width of 20 to 50 cm (40 cm in the present embodiment) is wound around the film feeding roll 31. The transfer film 2 is created by gravure printing a printed pattern layer on a substrate made of a water-soluble or water-swellable film. In addition, as a formation method of the printing pattern layer in the transfer film 2, well-known printing methods, such as screen printing, can be used besides gravure printing. A part of the transfer film 2 (printed pattern layer) is transferred onto the surface of the steering wheel 3 by hydraulic transfer to decorate the surface. Examples of such a printed pattern layer include a wood grain pattern and a geometric pattern.

  The base material of the transfer film 2 absorbs water by floating on the water surface and dissolves or swells, and when the steering wheel 3 is pushed in from above, it easily extends and deforms along the shape of the steering wheel 3 Have Specific examples of this base material include polyvinyl alcohol resin (PVA), dextrin, gelatin, glue, casein, shellac, gum arabic, starch, protein, polyacrylic amide, polyacrylic acid soda, polyvinyl methyl ether, methyl Copolymers of vinyl ether and maleic anhydride, copolymers of vinyl acetate and itaconic acid, polyvinylpyrrolidone, or cellulose derivatives such as cellulose, acetylcellulose, acetylbutylcellulose, carboxymethylcellulose, methylcellulose, hydroxyethylcellulose, soda alginate alone Alternatively, a water-soluble or water-swellable film such as a mixed resin is used.

  Resin for binder made of thermoplastic urethane resin such as polyester urethane, acrylic urethane, polycarbonate urethane, and acrylic resin such as polymethyl methacrylate, polyethyl methacrylate, polybutyl methacrylate, etc. A printing ink containing is used.

  The activator coating device 34 includes a plate cylinder 36 and an impression cylinder 37, and a supply container 38 for supplying the activator A1. The transfer film 2 is sandwiched between the plate cylinder 36 and the impression cylinder 37 and conveyed. The activator A1 supplied from the supply container 38 to the plate cylinder 36 is applied to the surface of the transfer film 2.

  The activator A1 of the present embodiment includes an organic solvent that can dissolve or swell the printed pattern layer formed on the transfer film 2, viscosity adjustment for efficient transfer process, and a printed pattern after transfer. A binder resin capable of satisfactorily adhering the layer to the surface of the steering wheel 3. Further, the activator A1 includes, as necessary, a plasticizer for improving spreading of the printed pattern layer fluidized by application of the activator A1 on the water surface, and a printed pattern layer generated in the drying step after transfer. An extender for preventing cracking of the coating film is blended.

  In the transfer film feeding device 6, the transfer film 2 is folded back to the transfer tank 5 side and conveyed by a tension roll 32 a provided on the rear side of the activator application device 34. With this configuration, the transfer film feeding device 6 is downsized.

  In the present embodiment, the transfer film 2 is cut along the longitudinal direction in the vicinity of the rear side of the tension roll 32a that folds the transfer film 2 back to the transfer tank 5 side, and a plurality of cut films 2a having a smaller width. A plurality of cutter knives 41 (cutting means) are provided. Specifically, three cutter knives 41 are provided at equal intervals (10 cm intervals) in the width direction of the transfer film 2, and the transfer film 2 is conveyed by the tension roll 32 a to transfer the cutter knife 41. The film 2 is cut into four strip-shaped cutting films 2a.

  As shown in FIG. 2 (a), the cutter knife 41 has its blade pointed downward, and its blade tip penetrates the transfer film 2 from the upper side to the lower side. The blades are arranged so as to hit at an angle θ of about 35 °. Moreover, as this cutter knife 41, the thing of the double blade in which the blade was formed in both right and left is used.

  In the present embodiment, the cutter knife 41 (see FIG. 2A) is used as the cutting means, but it may be changed to a rotary cutter 42 (round blade) as shown in FIG. 2B. Further, other cutting means such as a laser cutter may be used.

  Further, as shown in FIGS. 1 and 3, on the upper side of the transfer conveyor 33 on the transfer tank 5 side, a pressing roll 43 that presses both ends in the width direction of each cutting film 2 a to prevent the cutting film 2 a from being lifted. , 44 (film pressing means) are provided. In addition, in this Embodiment, the pressing roll 44 arrange | positioned inside is a common roll which hold | suppresses both each edge part of the adjacent cutting film 2a.

  As shown in FIGS. 4 and 5, the transfer tank 5 is provided with a plurality (four pairs in this embodiment) of guide chains 46 (guide means) along the longitudinal direction thereof. A part of the upper end of the guide chain 46 is exposed from the water surface, and each cutting film 2a fed onto the water surface from the transfer film feeding device 6 comes into contact with the side surface of the exposed portion of each guide chain 46. ing. Further, the guide chain 46 is driven in the direction of the water flow in the main tub 11 at a speed similar to the flow velocity thereof, thereby restricting the expansion of the cutting film 2a in the width direction, and the cutting film 2a in the direction of water flow. Guide along.

  Next, the operation of the hydraulic transfer device 1 of the present embodiment will be described.

  First, the pump 15 is driven to circulate the water W <b> 1 of the transfer tank 5, thereby generating a surface flow for flowing each cutting film 2 a on the water surface of the main tank 11. At this time, the guide chain 46 is driven so as to have a speed comparable to the surface flow.

  In the transfer film feeding device 6, the transfer film 2 is continuously fed from the film feeding roll 31. The transfer film 2 is supplied to the activator coating device 34 in a state where tension is applied by each tension roll 32, and the activator A <b> 1 is applied to the transfer film 2. The printed pattern layer formed on the transfer film 2 is dissolved or swollen by the active agent A1. Thereafter, the transfer film 2 is cut into four cutting films 2 a by a cutter knife 41. Further, each cutting film 2 a is transferred by each tension roll 32 and the feed conveyor 33 and supplied to the receiving side 5 a of the transfer tank 5. At this time, in the feed conveyor 33, both ends in the width direction of the respective cut films 2a are pressed by the pressing rolls 43 and 44. Thereby, the rising of each cutting film 2a is prevented, and each cutting film 2a is reliably sent out to the water surface of the transfer tank 5. Each cutting film 2 a is caused to flow by the water flow in the transfer tank 5, and further guided between the guide chains 46, and then flows to the discharge side 5 b by the water flow and the guide chain 46. Further, the cut film 2a swells by absorbing water when it floats on the water surface, and the print pattern layer can be transferred.

  Further, a plurality of (four in the present embodiment) steering wheels 3 are held in parallel by a transfer robot (not shown), and each steering wheel 3 is conveyed. Then, the steering wheel 3 is pressed from above each cutting film 2a so that the lower end side of the steering wheel 3 is submerged while rotating in an upright or oblique state (see FIG. 4). At this time, the steering wheel 3 is rotated in accordance with the flowing speed of the cutting film 2 a, so that a hydraulic pressure is applied and a part of the cutting film 2 a (printed pattern layer) is transferred in the circumferential direction of the steering wheel 3. . Thereafter, each transferred steering wheel 3 is transported by a transfer robot (not shown) and carried out to a line for a subsequent process (drying process).

  Therefore, according to the present embodiment, the following effects can be obtained.

  (1) In the hydraulic transfer device 1 of the present embodiment, the transfer film 2 can be cut so as to have an optimum width for performing hydraulic transfer on the steering wheel 3, and the transfer film 2 is unnecessary for hydraulic transfer. A portion (a useless film discarded after transfer) can be suppressed. Further, the transfer film 2 is cut and divided into a plurality of cut films 2a corresponding to each steering wheel 3, so that the steering wheel 3 does not pull the transfer film 2 from each other as in the prior art. The water pressure transfer to the wheel 3 can be performed reliably. As a result, the yield of the transfer film 2 can be improved, and adverse effects on the design of the steering wheel 3 after hydraulic transfer can be avoided.

  (2) In the hydraulic transfer device 1 of the present embodiment, the transfer film 2 is cut by the cutter knife 41 at a position subsequent to the activator application position in the activator application device 34. Here, when the activator A1 is applied by the activator applying device 34 after the transfer film 2 is cut, there is a problem that the activator A1 enters the gaps between the cut films 2a and the activator applying device 34 becomes dirty. On the other hand, if the activator A1 is applied before the transfer film 2 is cut as in the hydraulic transfer device 1 of the present embodiment, the activator coating device 34 will not become dirty. Further, since the transfer film 2 is fluidized and softened by the activator A1, the transfer film 2 can be easily cut by the cutter knife 41.

  (3) In the hydraulic transfer device 1 of the present embodiment, the transfer film 2 is cut by the cutter knife 41 at a position between the plurality of tension rolls 32 and 32a arranged at the subsequent stage of the activator application position. In this case, since the tension is applied to the transfer film 2 by the tension rolls 32 and 32a, the transfer film 2 can be cut more accurately without wrinkles. In the present embodiment, a cutter knife 41 is disposed in the vicinity of the tension roll 32a that folds the transfer film 2 toward the transfer tank 5 side. If the cutter knife 41 is arranged at this position, a sufficient work space can be secured, and maintenance of the cutter knife 41 can be easily performed.

  (4) In the hydraulic transfer device 1 according to the present embodiment, since both ends in the width direction of each cutting film 2a are pressed by the pressing rolls 43 and 44 at a position immediately before the transfer film 2 is landed, each cutting film 2a is It is possible to prevent overlapping and adhere, and each cutting film 2 a can be reliably landed on the water surface of the transfer tank 5.

  (5) In the hydraulic transfer device 1 of the present embodiment, since the relatively inexpensive cutter knife 41 is used as the cutting means, the device cost can be suppressed. Further, as the cutter knife 41, a double-edged one is used, and the blade tip penetrates the transfer film 2 and is arranged so that the blade hits the transfer film 2 at an angle θ of about 35 °. In this way, the transfer film 2 can be accurately and linearly cut without meandering the cutting portion by the cutter knife 41.

(6) In the hydraulic transfer device 1 of the present embodiment, four steering wheels 3 are arranged in parallel, and each steering wheel 3 is rotated at a rotational speed that matches the speed at which the cutting film 2a flows (flow speed of the water flow). By doing so, the pattern is transferred in the circumferential direction of each steering wheel 3. In this way, the design can be reliably transferred to each steering wheel 3 at the position where each cutting film 2a swells and is in an optimal state for transfer, and the quality of the design on each steering wheel 3 after transfer. Variations can be suppressed.
[Second Embodiment]

  Next, the hydraulic transfer device 60 of the second embodiment will be described in detail with reference to FIG. Here, the description will focus on the parts that are different from the first embodiment, and the common parts will not be described in place of the same member numbers.

  As shown in FIG. 6, the hydraulic transfer device 60 of the present embodiment is different from the first embodiment in that it further includes a film separating / expanding means 61. The film separating / expanding means 61 is disposed between the cutter knife 41 and the feed conveyor 33 (film feeding means) at the subsequent stage of the cutter knife 41. Note that only one cutter knife 41 of this embodiment is provided, and the transfer film 2 is cut into two strip-shaped cutting films 2a.

  Further, the film separating / expanding means 61 has a single base plate 62. The base plate 62 covers substantially the entire upper portion of the feed conveyor 33. And the space | interval of the base board 62 and the feed conveyor 33 is set to 10 mm or less. The base plate 62 does not cover the upper region R1 (see FIG. 6) of the transfer conveyor 33 on the transfer tank 5 side. Therefore, the cutting film 2a comes into contact with only the region R1 in the feed conveyor 33. The feed conveyor 33 is a belt conveyor constituted by rollers 33a provided at both ends of a pair of guide rails (not shown) and an endless belt 33b wound between the rollers 33a. Both ends of the base plate 62 are respectively attached to a pair of guide rails. Therefore, the film separating / expanding means 61 is not interlocked with the movement of the feed conveyor 33.

  As shown in FIG. 6, a pair of separation guides 63 project from the main surface 62 a of the base plate 62. Each separation guide 63 is a rectangular flat plate and extends long along the moving direction of the cutting film 2a. Each separation guide 63 has an angle with respect to the main surface 62a of the base plate 62 set in a range of 40 ° to 70 °. Each separation guide 63 may be a curved plate. Each separation guide 63 protrudes in an oblique direction with respect to the base plate 62. Further, the interval between the separation guides 63 gradually increases from the front end (the end on the cutter knife 41 side) to the rear end (the end on the transfer tank 5 side). Then, the cutting film 2a slides and guides on each separation guide 63 in a surface contact state, so that the cutting films 2a are separated from each other and the interval between them is expanded. The material for forming the separation guide 63 is preferably a material that is slippery and less likely to be charged with static electricity in order to smoothly supply the cut film 2a. For example, a polypropylene foam material or stainless steel is used.

  In addition, a film rise restricting piece 64 protrudes from the rear end portion of each separation guide 63. Each film ascending restriction piece 64 has a substantially rectangular plate shape, and is provided in parallel with the base plate 62 at the distal end portion of the separation guide 63. Each film rising restriction piece 64 is configured to restrict the rising of the cut film 2 a with respect to the separation guide 63. In addition, you may provide the film raising control piece 64 not only in the rear-end part of each separation guide 63 but in the front-end part of each separation guide 63, and an intermediate part.

  As shown in FIG. 6, film stretching members 65 are disposed at positions on the rear side of the separation guides 63 in the base plate 62. Each film stretching member 65 is a substantially L-shaped rod-shaped member formed by bending a metal rod. Each of the film stretching members 65 is disposed so as to be orthogonal to the moving direction of the cutting film 2 a, and both end portions are provided so as to protrude on the main surface 62 a of the base plate 62. Each film stretching member 65 supports the cutting film 2a that has been slidably guided on the separation guide 63 from the back surface side, and applies tension to the entire width direction of the cutting film 2a, so that the wrinkles of the cutting film 2a are removed. It comes to stretch. In addition, the end portions located on the inner side of the base plate 62 are higher than the end portions located on the outer side of the base plate 62, and one end side (inner side) in the width direction of the cutting film 2a. Gives a stronger tension.

  As shown in FIG. 6, a plurality of pressing rolls 43 for pressing both ends in the width direction of the respective cut films 2 a are provided at a position immediately above the film stretching member 65 on the upper portion of the feed conveyor 33. Thereby, the cutting film 2a which is easy to float in order to pass on the film stretching member 65 can be reliably pressed down. In addition, since the cutting film 2a is reliably brought into contact with the belt 33b of the feed conveyor 33 by pressing the cutting film 2a, the cutting film 2a can be reliably sent to the water surface of the transfer tank 5.

  If it is the above-mentioned composition, since the cutting film 2a goes straight by the force with which the feed conveyor 33 pulls the cutting film 2a and the pitch between the cutting films 2a is reduced, the cutting films 2a are likely to overlap each other. As a result, there is a possibility that inconveniences such as adhesion of the active agent A1 to the back surface of the cut film 2a may occur. Further, since the pitch between the cutting films 2 a cannot be widened, there is a possibility that a problem such as the cutting film 2 a being caught on the guide chain 46 when the water reaches the water surface of the transfer tank 5 may occur. Therefore, in this embodiment, before the cutting film 2a reaches the feed conveyor 33, the film separation / expansion means 61 separates the cutting films 2a from each other and expands the interval between them. Thereby, since it becomes difficult for the cutting films 2a to overlap, the said malfunction resulting from the cutting films 2a overlapping can be prevented. In the present embodiment, the cutter knife 41 can be disposed close to the front end portion of each separation guide 63, so that the installation area of the hydraulic transfer device 60 can be reduced.

In addition, in the present embodiment, since the separation guide 63 has a simple shape (rectangular flat plate), the film separation expansion means 61 can be manufactured relatively easily. Moreover, since each separation guide 63 extends long along the moving direction of the cutting film 2a, the contact area between the separation guide 63 and the cutting film 2a is increased. Therefore, it becomes easy to spread the cutting film 2a, and the wrinkles are less likely to move toward the cutting film 2a. Furthermore, the film separating / expanding means 61 of the present embodiment supports the cutting film 2a from below, and the film separating / expanding means 61 comes into contact with the upper surface of the cutting film 2a that is softened by the application of the activator A1. There is no. Therefore, the design quality of the steering wheel 3 can be maintained.
[Third Embodiment]

  Next, the hydraulic transfer device 70 of the third embodiment will be described in detail with reference to FIG. Here, the description will focus on parts that are different from the second embodiment, and common parts will not be described in place of the same member numbers.

  As shown in FIG. 7, the hydraulic transfer device 70 of this embodiment includes a film separation expansion means 71 that is different from the film separation expansion means 61 of the second embodiment. The pair of separation guides 72 constituting the film separation / expansion means 71 are flat plates having a substantially triangular shape. The film separating / expanding means 71 has an angle changing mechanism (not shown) for changing the inclination angle of the separating guide 72 with respect to the base plate 62. By this angle changing mechanism, the inclination angle of the separation guide 72 can be freely set within a predetermined range (30 ° to 40 ° in this embodiment). If it does in this way, since the inclination-angle of the separation guide 72 can be arbitrarily changed according to the kind of the cutting film 2a, the rising of the cutting film 2a with respect to the separation guide 72 can be prevented more reliably.

  In addition, you may change embodiment of this invention as follows.

  In the above embodiment, the cutter knife 41 as the cutting means is disposed on the rear stage side of the tension roll 32a that folds the transfer film 2, but the position of the cutter knife 41 can be changed as appropriate. For example, you may arrange | position the cutter knife 41 in the position P1 (refer FIG. 1) between the feed conveyor 33 and the tension roll 32 of the front | former stage side. In this case, since the cutting position of the transfer film 2 is close to the water landing point of each cutting film 2a, each cutting film 2a can be reliably landed without overlapping each other after cutting. Further, the cutter knife 41 may be arranged on the front side of the activator application device 34. In this case, the activator application device 34 is configured so as to apply the activator A1 while avoiding the gaps between the cut films 2a. change.

  In the above embodiment, the cutter knife 41 is arranged so that the blade hits the transfer film 2 at an angle θ of 35 °, but this angle θ can be changed as appropriate. However, since it is difficult to cut the transfer film 2 when the angle θ is 0 to 10 ° or 170 ° to 180 °, the cutter knife 41 is preferably arranged at an angle θ within the range of 10 ° to 170 °. More preferably, the cutter knife 41 is arranged at an angle θ within the range of 30 ° to 40 °.

  In the above embodiment, the cutter knife 41 is arranged so as to enter the blade from the front surface side of the transfer film 2 with the blade facing downward, but on the contrary, the back surface of the transfer film You may arrange | position so that it may enter from the side. However, when the blade of the cutter knife 41 faces upward, it is preferable to provide a protective member (safety cover) that covers the upper portion of the blade.

  In the second embodiment, the cutter knife 41 may be integrated with the front end portion of the separation guide 63.

  In the above embodiment, the film feeding unit is embodied in the feeding conveyor 33, but may be embodied in another configuration (for example, a feeding roller).

  In the above-described embodiment, the embodiment is embodied in the steering wheel 3 as the transfer base material, but may be embodied in parts such as a console box, an instrument panel, and an armrest. Of course, the substrate to be transferred is not limited to automobile parts, and may be embodied in parts such as home appliances and office supplies.

  In the above embodiment, the transfer film 2 is divided into four or two cut films 2a. The number of divisions depends on the width of the transfer film 2 and the width and shape of the substrate to be transferred. Can be changed as appropriate.

  In the above embodiment, the embodiment is embodied in the hydraulic transfer devices 1, 60 and 70 that apply decoration to the surface of the steering wheel 3 by hydraulic transfer, but transfer is performed using the pressure of a liquid other than water. It may be embodied in a hydraulic transfer device.

  Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the embodiments described above are listed below.

  (1) The hydraulic transfer device according to any one of claims 1 to 7, wherein a double-edged cutter knife is used as the cutting means.

  (2) The hydraulic transfer apparatus according to (1), wherein the cutter knife is disposed so that the blade hits the film at a predetermined angle within a range of 10 ° to 170 °.

  (3) The hydraulic transfer device according to (1) or (2), wherein the cutter knife is disposed so that a cutting edge penetrates the film.

  (4) In any one of claims 1 to 7, the substrate to be transferred is an annular substrate, and a plurality of the substrates to be transferred are arranged in parallel, and each substrate to be transferred is arranged around the substrate. A hydraulic transfer apparatus characterized in that a part of each of the cut films is transferred to the surface of each transferred substrate by rotating in the direction.

  (5) A liquid tank for storing a liquid for floating and expanding a hydraulic transfer film having a swelling property, and a liquid in the liquid tank to a discharge side for discharging the film from a receiving side for receiving the film. An apparatus for transferring a part of the film to the surface of a substrate to be transferred by the action of hydraulic pressure, the liquid film generating means for generating a liquid flow toward the film, and before the film reaches the liquid, the film Cutting means along the longitudinal direction to form a plurality of narrower cutting films, and the cutting means is arranged at a stage subsequent to the cutting means to pull the cutting film so as to be sent out to the receiving side of the liquid tank. The film feeding means is disposed between the cutting means and the film feeding means, and the cutting films are separated from each other by slidingly guiding the cutting film in a surface contact state. And liquid pressure transfer apparatus characterized by comprising a film separating expanding means for expanding the mutual spacing.

1 is a cross-sectional view showing a hydraulic transfer device according to a first embodiment. (A) shows a cutter knife, (b) is explanatory drawing which shows a rotary cutter. The front view which shows a pressing roll. Sectional drawing of the transfer tank which shows arrangement | positioning of each guide chain. The top view which shows a transfer tank. The perspective view which shows the hydraulic transfer apparatus of 2nd Embodiment. The perspective view which shows the hydraulic transfer apparatus of 3rd Embodiment. The top view which shows the conventional hydraulic transfer apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,60,70 ... Hydraulic transfer apparatus as a hydraulic transfer apparatus 2 ... Transfer film as a hydraulic transfer film 2a ... Cutting film 3 ... Steering wheel as a substrate to be transferred 5 ... Transfer tank as a liquid tank 5a ... Transfer Receiving side of tank 5b ... Discharging side of transfer tank 13 ... Recovery pipe constituting liquid flow generation means 15 ... Pump constituting liquid flow generation means 16 ... Supply pipe constituting liquid flow generation means 31 ... Film feeding roll 32, 32a ... Tension roll as tension applying roll 33 ... Feeding conveyor as film feeding means 34 ... Activator coating device 41 ... Cutter knife as cutting means 43, 44 ... Pressing roll as film pressing means 46 ... Guide as guiding means Chain 61, 71 ... Film separation / expansion means 62 ... Base plate 62a ... Main surface of base plate 63 ... Separation guide 64 ... Water as a film elevation regulating member 65 ... film crease smoothing member A1 ... activator W1 ... liquid

Claims (7)

A liquid tank for storing a liquid for floating and expanding a hydraulic transfer film having a swelling property, and a liquid flow toward the discharge side for discharging the film from the receiving side for receiving the film to the liquid in the liquid tank An apparatus for transferring a part of the film to the surface of the substrate to be transferred by the action of hydraulic pressure,
A cutting means for cutting the film along its longitudinal direction before the film is deposited on the liquid to form a plurality of smaller cut films;
A hydraulic transfer apparatus comprising: a plurality of guide means for guiding the cutting film along the direction of the liquid flow while restricting expansion of the cutting film in a width direction.   A film feeding roll that continuously feeds out the hydraulic pressure transfer film, and a plurality of tension applying rolls that are fed to the receiving side of the liquid tank while being bent in a state in which tension is applied to the film fed out from the film feeding roll. And an activator coating device for applying an activator to the film fed from the film feed roll, wherein the cutting means cuts the film at a position after the activator application position. The hydraulic transfer device according to claim 1.   The hydraulic transfer device according to claim 2, wherein the cutting means cuts the film at a position between a plurality of tension applying rolls arranged at a subsequent stage of the activator application position.   The hydraulic transfer device according to any one of claims 1 to 3, further comprising film pressing means for pressing both ends in the width direction of the cut film before liquid deposition. A film feeding means arranged at a subsequent stage of the cutting means to pull the cutting film so as to send it to the receiving side of the liquid tank;
And a film separating / expanding means arranged between the cutting means and the film feeding means, for separating the cut films and extending the distance between them by sliding and guiding the cut films in a surface contact state. The hydraulic transfer device according to claim 1, wherein the hydraulic transfer device is provided.   The film separation / expansion means includes a base plate having a main surface, a separation guide protruding on the main surface of the base plate and extending long along the moving direction of the cutting film, and at least a rear end of the separation guide 6. The hydraulic transfer device according to claim 5, further comprising a film elevation regulating piece that protrudes from a portion and regulates the rising of the cut film with respect to the separation guide.   The film separating / expanding means has a film stretching member that stretches the wrinkles of the cut film by applying tension to the entire width direction of the cut film at a position on the rear side of the separation guide. The hydraulic transfer device according to claim 6.

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