JP5450967B2 - Foil transfer device - Google Patents

Description

  The present invention relates to a foil transfer apparatus for transferring a foil of a transfer foil to a transfer target.

  For example, FIG. 11 shows a schematic configuration of an example of a conventional foil transfer apparatus that transfers a foil of a transfer foil onto a web.

  As shown in FIG. 11, the anvil roller 11 that travels the web 3 is provided with a pressing roller 12 that includes a plurality of protruding portions 12 a that contact the anvil roller 11 at a predetermined interval in the circumferential direction. A transfer foil 1 in which a foil made of metal or the like is provided in a layer shape on a base film made of resin or the like via a release layer or the like and wound in a roll shape is rotatably supported by a feed shaft 13. In the vicinity of the feeding shaft 13, a winding shaft 14 for winding the transfer foil 1 is provided. The roll-shaped transfer foil 1 held on the feeding shaft 13 is wound around the winding shaft 14 via the space between the anvil roller 11 and the pressing roller 12.

  In the vicinity of the feed shaft 13, a pair of feed rollers 15 that can be rotationally driven to sandwich the transfer foil 1 rewound from the feed shaft 13 is provided. The transfer foil 1 positioned between the anvil roller 11 and the pressing roller 12 is provided on the feeding shaft 13 side and the winding shaft 14 side between the anvil roller 11 and the pressing roller 12. Guide rollers 16 and 17 for guiding the transfer foil 1 are provided so as to pass in a tangential direction with respect to the anvil roller 11.

  Guide rollers 18 to 20 for guiding the transfer foil 1 are disposed between the feeding roller 15 and the guide roller 16. Guide rollers 21 to 23 for guiding the transfer foil 1 are disposed between the winding shaft 14 and the guide roller 17.

  The guide rollers 19 and 22 are provided with an adjustment mechanism 24 that adjusts the travel path of the transfer foil 1 on the guide rollers 18 to 20 side and the travel path of the transfer foil 1 on the guide rollers 21 to 23 side. The adjustment mechanism 24 shortens the travel path of the transfer foil 1 on the guide rollers 21 to 23 side while lengthening the travel path of the transfer foil 1 on the guide rollers 18 to 20 side. The positions of the guide rollers 19 and 22 are moved synchronously so that the travel path of the transfer foil 1 on the guide rollers 21 to 23 side is lengthened while the travel path of the transfer foil 1 on the 18 to 20 side is shortened. It can be made to.

  In FIG. 11, 15 a is a drive motor for the feeding roller 15, and 24 a is a drive motor for the adjusting mechanism 24.

  The operation of such a conventional foil transfer apparatus will be described next.

  The anvil roller 11 is rotated to drive the web 3, and the driving motor 15a is operated to rotate the feeding roller 15 and simultaneously rotate the pressing roller 12 and the winding shaft 14. When the transfer foil 1 is fed from the feed shaft 13 and travels, when the projecting portion 12 a of the pressing roller 12 faces the outer peripheral surface of the anvil roller 11, the transfer foil 1 The foil is pressed onto the web 3 by the projecting portion 12a, and the foil is transferred to the web 3 in a shape corresponding to the pattern provided on the projecting portion 12a of the pressing roller 12, and then wound and collected on the winding shaft 14. Is done. As a result, the foil having a shape corresponding to the pattern is continuously transferred to the web 3.

  At this time, if the transfer foil 1 always travels at the same speed as the web 3, it is wound around the collecting shaft 14 without being transferred to the foil 3, that is, the portion of the web 3 opposite to the portion of the web 3 that does not transfer the foil. A large amount of the foil is generated, resulting in waste. Therefore, after the protrusion 12a of the pressing roller 12 faces the outer peripheral surface of the anvil roller 11 and the foil of the transfer foil 1 is transferred to the web 3, the drive motor 24a of the adjustment mechanism 24 is activated. The transfer foil 1 on the side of the guide rollers 21 to 23 and the side of the guide rollers 18 to 20 travels until the new protrusion 12a of the pressing roller 12 faces the outer peripheral surface of the anvil roller 11. The adjusting mechanism 24 moves the guide rollers 19 and 22 so as to change the path.

  As a result, when the new protrusion 12a of the pressing roller 12 faces the outer peripheral surface of the anvil roller 11, the portion near the transfer portion of the transfer foil 1 to which the foil has been transferred first to the web 3 is located on the pressing roller 12. Since the protrusion 12a is positioned between the protrusion 12a and the outer peripheral surface of the anvil roller 11, the transfer portion of the transfer foil 1 to be transferred next to the web 3 and the transfer foil in which the foil has been transferred to the web 3 first. 1 can be very short and the waste of the foil of the transfer foil 1 can be largely eliminated (foil saving mechanism: detailed operation is described in, for example, Patent Documents 1 and 2 below) Etc.).

  Further, the guide rollers 16 and 17 are disposed so that the transfer foil 1 positioned between the anvil roller 11 and the pressing roller 12 passes through the anvil roller 11 in a tangential direction. Unnecessary rubbing of the transfer foil 1 with the web 3 is prevented.

US Pat. No. 6,334,248 US Pat. No. 6,491,780 JP 2006-224667 A

  By the way, in the conventional foil transfer apparatus as described above, if the tension of the transfer foil 1 between the guide rollers 16 and 17 is excessively large, wrinkles are generated in the transfer foil 1 and the transfer foil. Therefore, it is desirable to set the tension of the transfer foil 1 to be weak. However, if the tension of the transfer foil 1 between the guide rollers 16 and 17 is small, the transfer foil 1 passes through the opposite point of the rollers 11 and 12 as shown in FIG. After that, the base film of the transfer foil 1 cannot be easily peeled off from the web 3, and the transfer from the position where the pressing roller 12 and the anvil roller 11 face each other to the downstream side in the rotation direction of the anvil roller 11. The phenomenon that the base film of the foil 1 sticks occurs, the tension of the transfer foil 1 in the peripheral portion between the pressing roller 12 and the anvil roller 11 is easily disturbed, and the foil transferred to the web 3 and the transfer Cracks and wrinkles occur on the foil on the foil 1. This phenomenon occurs particularly in an apparatus in which the transfer target body to which the foil is transferred faces the pressing cylinder and is conveyed so as to be wound around the peripheral surface of the support cylinder that supports the transfer target body.

  For this reason, in the conventional foil transfer device as described above, it is very difficult to adjust the tension of the transfer foil 1.

  Therefore, for example, as described in Patent Document 3 and the like, the transfer foil is run around the pressing roller to prevent disturbance of the tension of the transfer foil, and the foil transferred onto the web and the transfer foil It is conceivable to prevent cracking and wrinkling of the foil. However, if this is done, the transfer foil will rub against the pressing roller during foil saving, so the time for foil saving must be shortened, making it difficult to reliably perform foil saving. End up.

  In view of the above, an object of the present invention is to provide a foil transfer device capable of reliably performing foil saving while easily stabilizing the tension of the transfer foil.

In order to solve the above-mentioned problems, a foil transfer device according to the present invention is rotatably supported and supports a transfer body on an outer peripheral surface, and is disposed so as to face the support cylinder and rotates. A belt-like transfer foil having a foil supported on a base film, and the transfer body, and a transfer body, which are moved between the support cylinder and the press cylinder, and transferred to the transfer body. A foil transfer device for transferring the foil foil, wherein foil transfer is performed by pulling back the transfer foil when the transfer foil is running so as not to contact the support cylinder and the pressing cylinder. A tangent line that is disposed in the vicinity of the pressing cylinder on the downstream side in the traveling direction of the transfer foil on the pressing cylinder side near the opposing point between the supporting cylinder and the pressing cylinder and passes through the opposing point. The pressing cylinder It includes a downstream guide member that guides the transfer foil towards the press cylinder with opposing surfaces of the downstream guide member, an arc shape along the outer circumferential surface of the press cylinder, the downstream guide member The outer surface in the radial direction of the pressing cylinder forms an arcuate guide surface that guides the transfer foil, and the thickness in the radial direction of the pressing cylinder on the upstream side in the running direction of the transfer foil of the downstream guide member. However, it is formed so that it may become thin as it goes to the said traveling direction upstream .

Further, the foil transfer apparatus according to the present invention is the foil transfer apparatus described above, in the vicinity of the pressing cylinder on the upstream side in the traveling direction of the transfer foil on the pressing cylinder side in the vicinity of the opposing point between the support cylinder and the pressing cylinder. is disposed with the upstream guide member having an arcuate guide surface for guiding the transfer foil radially outer surface of the press cylinder, the press cylinder surface facing the upstream guide member, It forms an arc shape along the outer peripheral surface of the pressing cylinder, and the thickness in the radial direction of the pressing cylinder on the downstream side in the traveling direction of the transfer foil of the upstream guide member becomes thinner toward the downstream side in the traveling direction. It is formed as follows.

In the foil transfer device according to the present invention, in the above-described foil transfer device, the downstream guide member has an injection hole that is provided on the guide surface and injects air from an air supply unit . It is characterized by.

Another foil transfer apparatus according to the present invention, the foil transfer apparatus described above, the upper stream side guide member has an injection hole provided on the guide surface to eject air supplied from air supply means It is characterized by that.

The foil transfer device according to the present invention is the above-described foil transfer device, wherein the guide surface of the downstream guide member has an end on the upstream side in the running direction of the transfer foil such that a gap is formed between the guide surface and the transfer foil. and wherein the part is obtained by bending a.

Further, the foil transfer apparatus according to the present invention is the above-described foil transfer apparatus, wherein the guide surface of the upstream guide member is located on the downstream side in the running direction of the transfer foil such that a gap is formed between the guide surface and the transfer foil. The end portion is curved .

The foil transfer device according to the present invention is the above-described foil transfer device, wherein the guide surface of the downstream guide member has an end on the downstream side in the running direction of the transfer foil such that a gap is formed between the guide surface and the transfer foil. It is characterized by a curved portion.
Further, the foil transfer device according to the present invention is the above-described foil transfer device, wherein the guide surface of the upstream guide member has an end on the upstream side in the running direction of the transfer foil such that a gap is formed between the guide surface and the transfer foil. It is characterized by a curved portion.

  Further, the foil transfer device according to the present invention is the above-described foil transfer device, wherein the pressing cylinder has a notch on an outer peripheral surface, and when the notch of the pressing cylinder faces the support cylinder, The downstream guide member guides the transfer foil so that the transfer foil travels into the notch of the pressing cylinder.

  According to the foil transfer device of the present invention, the downstream guide member guides the transfer foil toward the pressing cylinder side rather than the tangent line passing through the opposing point between the support cylinder and the pressing cylinder. The transfer foil base film can be easily peeled off without being attached to the downstream side of the support cylinder in the rotational direction, ensuring foil saving while easily stabilizing the transfer foil tension. Can be done.

  An embodiment when the foil transfer device according to the present invention is applied to a cold foil transfer (cold foil transfer) type will be described with reference to FIGS. 1 is a schematic configuration diagram of the main part of the foil transfer apparatus, FIG. 2 is an enlarged view of the main part of FIG. 1, FIG. 3 is an enlarged enlarged view of the main part of FIG. 2, and FIG. FIG. 5 is an operation explanatory diagram following FIG. 4, FIG. 6 is an operation explanatory diagram following FIG. 5, and FIG. 7 is an operation explanatory diagram following FIG.

  As shown in FIGS. 1 to 3, a holding device 111 b that holds the front end side of the sheet 2 so as to support the sheet 2 that is a transfer target and a sheet is supported on the outer surface. Sheets on which a transfer cylinder 111 serving as a support cylinder and a sheet-like object support cylinder provided in the formed notch 111a is previously transferred with an adhesive corresponding to a pattern from a paper supply device via an adhesive transfer device. A transfer cylinder 128 that transfers the paper sheet 2 to the conveyance cylinder 111 is in contact with the transfer cylinder 111.

  On the downstream side of the transfer cylinder 128 in the conveying direction of the sheet 2 of the conveying cylinder 111, the pressing surface layer member 112c is supported by an outer peripheral surface so as to support a sheet-shaped pressing surface layer 112c made of resin, rubber, or the like. A pressing roller 112, which is a pressing cylinder provided in a notch portion 112a formed on the outer peripheral surface, is opposed to the winding device 112b that holds the end portion. A transfer cylinder 129 that delivers the sheet 2 from the conveyance cylinder 111 to the paper discharge device is opposed to the downstream side of the pressure roller 112 in the conveyance direction of the sheet 2 of the conveyance cylinder 111.

  Further, a transfer foil 1 wound in a roll shape by providing a base film made of resin or the like in a layer shape with a foil made of metal or the like via a release layer or the like is rotatably supported by a feed shaft 113. . In the vicinity of the feeding shaft 113, a winding shaft 114 for winding the transfer foil 1 is provided. The roll-shaped transfer foil 1 held on the feeding shaft 113 is wound around the winding shaft 114 via the conveyance drum 111 and the pressing roller 112.

  On the upstream side in the running direction of the transfer foil 1 on the side of the pressing roller 112 in the vicinity of the opposite point P between the conveying cylinder 111 and the pressing roller 112, the transfer foil 1 travels from the feeding shaft 113. A feeding guide 130 that is an upstream guide member that guides between the conveying cylinder 111 and the pressing roller 112 is disposed.

  The feeding guide 130 is hollow inside, and is connected to an air pump (not shown) that is an air feeding means, and is positioned on the radially outer side of the pressing roller 112 to guide the running direction of the transfer foil 1. A large number of injection holes 131 a for ejecting air are formed in the arc-shaped guide surface 131.

  The feeding guide 130 has a crescent shape in which the cross-sectional shape in the radial direction of the pressing roller 112 forms an arc shape that bulges outward in the radial direction, that is, the thickness in the radial direction is In short, it is formed so as to be thinner toward the downstream side in the traveling direction, and is located on the inner side in the radial direction so as to make both ends in the traveling direction thinner than the middle in the traveling direction of the transfer foil 1. A surface 132 facing the pressing roller 112 is formed in an arc shape along the outer peripheral surface of the pressing roller 112, and the guide surface 131 is formed between the transfer foil 1 and both ends of the transfer foil 1 in the running direction. When the notch 112a of the pressing roller 112 is opposed to the transport drum 111, that is, the pressing roller 112 is formed in a circular arc shape having gaps C1 and C2 therebetween. When the cutout portion 112a and the cutout portion 111a of the transport drum 111 face each other, the transfer foil 1 is moved so that the transfer foil 1 travels into the cutout portion 112a of the pressing roller 112. It can be guided (see FIG. 3).

  On the other hand, on the downstream side in the running direction of the transfer foil 1 on the side of the pressing roller 112 near the point P where the conveying cylinder 111 and the pressing roller 112 face each other, between the conveying cylinder 111 and the pressing roller 112. The discharge foil 140 is a downstream guide member that guides the transfer foil 1 such that the transfer foil 1 is separated from the facing point P toward the pressing roller 112 side with respect to the tangent L passing through the facing point P. Is arranged.

  The discharge guide 140 has a hollow inside and is connected to an air pump (not shown) that is an air supply unit. The discharge guide 140 is located on the radially outer side of the pressing roller 112 and guides the traveling direction of the transfer foil 1. A large number of injection holes 141 a for ejecting air are formed in the arc-shaped guide surface 141.

  Furthermore, the discharge guide 140 is simply described so that the thickness in the radial direction of the pressing roller 112 is thinner in the traveling direction upstream than in the middle and downstream in the traveling direction of the transfer foil 1. The surface 142 that is formed so as to become thinner toward the upstream side in the traveling direction and that faces the pressure roller 112 and is located on the inner side in the radial direction is formed in an arc shape along the outer peripheral surface of the pressure roller 112. At the same time, the guide surface 141 is formed in an arc shape that creates gaps C3 and C4 between the transfer foil 1 and both ends of the transfer foil 1 in the running direction, and further, the notch 112a of the pressure roller 112 is formed. Is opposed to the transport cylinder 111, that is, when the notch 112a of the pressure roller 112 and the notch 111a of the transport cylinder 111 are opposed to each other. The serial transfer foil 1 so as to travel within the notch 112a of the pressing roller 112, thereby making it possible to guide the transfer foil 1 (see FIG. 3).

  In the vicinity of the pressing roller 112, a swing arm 115 supported so as to be swingable in the middle is disposed. Moving rollers 116 and 117 are provided on both ends of the swing arm 115, respectively.

  The transfer foil 1 fed from the feeding shaft 113 is wound around the moving roller 116 on one side of the swing arm 115 between the pressing roller 112 and the transport drum 111. The transfer wheel 1 fed to the winding shaft 114 from between the pressing roller 112 and the conveying drum 111 is wound around the moving roller 117 on the other side of the swing arm 115.

  In the vicinity of the moving roller 116 on one side of the swing arm 115, a guide roller 118 for guiding the transfer foil 1 from the feeding shaft 113 so as to be wound around the moving roller 116 is disposed.

  In the vicinity of the moving roller 117 on the other side of the swing arm 115, a guide roller that guides the transfer foil 1 from between the pressing roller 112 and the transfer drum 111 to be wound around the moving roller 117. 119 is provided.

  That is, by swinging the swing arm 115, the travel path of the transfer foil 1 on the winding shaft 114 side is shortened while the travel path of the transfer wheel 1 on the feed shaft 113 side is lengthened. The positions of the moving rollers 116 and 117 are simultaneously moved so as to lengthen the travel path of the transfer foil 1 on the winding shaft 114 side while shortening the travel path of the transfer wheel 1 on the feed shaft 113 side. It can be made.

In the figure, reference numerals 120 to 126 denote guide rollers.
In this embodiment, the transfer shaft 113, the take-up shaft 114, the guide rollers 118 to 126, and the like constitute transfer foil traveling means (transfer foil supply means), and the swing arm 115 and the moving roller 116 are configured. , 117, etc. constitute a foil saving mechanism.
Further, since the above-mentioned “opposing point P” is a portion where the transfer foil 1 is pressed against the sheet 2 and the foil of the transfer foil 1 is transferred onto the sheet 2, the “pressing point P”, It can also be referred to as “transfer portion P”.

  Next, the operation of the foil transfer apparatus according to this embodiment will be described.

  By rotating the cylinders 111, 128, and 129, the sheet 2 to which the adhesive corresponding to the pattern is transferred from the sheet feeding device via the adhesive transfer device is transferred to the transport cylinder 111. On the other hand, the air pump is operated to inject air from the injection holes 131a and 141a of the guides 130 and 140 to rotate the pressing roller 112 and to transfer the transfer foil 1 from the feeding shaft 113. When the transfer foil 1 is fed between the transport drum 111 and the pressing roller 112 through the rollers 116, 118, 120, 121 and the feed guide 130, the holding device for the transport drum 111 is held. The sheet 2 supported on the outer peripheral surface of the transport drum 111 by the 111b and the pressing surface layer member 112c of the pressing roller 112 face each other, and Le 1 is pressed against the said leaf paper 2, the foil of the transfer foil 1 is transferred to the leaf paper 2 in response to the pattern of adhesive which is previously transferred to the leaf paper 2. The sheet 2 to which the foil has been transferred is discharged to the discharge device via the transfer drum 129, and the transfer foil 1 after the transfer of the foil is transferred to the discharge guide 140 and the roller 117. , 119, 122 to 126, and wound and collected on the winding shaft 114. Thereby, the foil of the shape corresponding to the said pattern can be transcribe | transferred with respect to the sheet 2 continuously fed.

  Here, as shown in FIG. 4, when the pressing surface layer member 112 c of the pressing roller 112 is transferring the foil of the transfer foil 1 to the sheet 2 on the outer peripheral surface of the conveying cylinder 111, The discharge guide 140 separates the transfer foil 1 from between the conveying cylinder 111 and the pressing roller 112 away from the opposing point P toward the pressing roller 112 with respect to the tangent L passing through the opposing point P. As described above, since the transfer foil 1 is guided, the base film of the transfer foil 1 is not pasted from the facing point P to the downstream side in the rotation direction of the transport drum 111 after passing the facing point P. It can be peeled off from the sheet 2 immediately.

  For this reason, disturbance of the tension of the transfer foil 1 in the peripheral portion between the pressing roller 112 and the conveying drum 111 can be easily prevented, and fine cracks and wrinkles are generated in the foil transferred to the sheet 2. Can be easily prevented.

  In the case where the sheet 2 is relatively thick, due to the stiffness of the sheet 2 itself, as shown in FIG. 6 and 7, even if the paper feeding guide 130 jumps up without being supported by the surface, the feeding guide 130 receives an impact from the rear end side of the paper sheet 2 that hits the transfer foil 1. Thus, since the movement of the rear end side of the sheet 2 and the transfer foil 1 in the direction orthogonal to the traveling direction of the transfer foil 1 is restricted, the transfer foil 1 by the rear end side of the sheet 2 is controlled. Can be prevented, and the transfer foil 1 can be prevented from wrinkling or meandering.

  Further, if the transfer foil 1 always travels at the same speed as the sheet 2, a large amount of foil of the transfer foil 1 that is not transferred to the sheet 2 is generated and wasted. For this reason, the pressing surface layer member 112c of the pressing roller 112 presses the transfer foil 1 onto the sheet 2 supported by the conveying cylinder 111, and the foil of the transfer foil 1 is transferred to the sheet 2. Thereafter, when the cutout portion 112a of the pressing roller 112 and the cutout portion 111a of the transport drum 111 face each other, the guides 130 and 140 cause the transfer foil 1 to be moved to the cutout portion 112a of the press roller 112. The transfer foil 1 is guided so as to travel inward, that is, not to contact the transport cylinder 111 and the pressing roller 112 (see FIG. 3).

  At this time, the swing arm 115 is swung to move the rollers 116 and 117 so as to change the travel path of the transfer foil 1 on the rollers 116 and 118 side and the rollers 117 and 119 side.

  Accordingly, when the pressing surface layer member 112c of the pressing roller 112 faces the transfer position of the foil of the new sheet 2 supported by the conveying cylinder 111, the previous sheet of the foil of the transfer foil 1 is transferred. Since the portion near the transfer point to the leaf paper 2 is positioned between the pressing roller 112 and the transport cylinder 111, the foil portion of the transfer foil 1 to be transferred to a new sheet 2; The distance between the transfer foil 1 transferred to the previous sheet 2 and the foil portion can be made very short, and the waste of the foil of the transfer foil 1 that does not face the sheet 2 can be largely eliminated. (Foil saving mechanism: see, for example, Patent Documents 1 and 2 for detailed operation).

  Therefore, according to the foil transfer apparatus according to the present embodiment, even when the foil of the transfer foil 1 is transferred to the relatively thick sheet 2, the tension of the transfer foil 1 can be easily stabilized, Foil saving can be performed reliably.

  In addition, since the guide surfaces 131 and 141 of the guides 130 and 140 have an arc shape, the movement movement of the transfer foil 1 is smoothly guided during the movement of the transfer foil 1 including foil saving and the like. It is possible to suppress the transfer foil 1 from being damaged.

  In addition, since the air can be injected from the injection holes 131a and 141a formed in the guide surfaces 131 and 141 of the guides 130 and 140, the transfer foil 1 is slightly floated with respect to the guide surfaces 131 and 141. Therefore, the transfer foil 1 can be guided more smoothly, and the transfer foil 1 can be more reliably prevented from being damaged.

  Further, since both ends of the guide surfaces 131 and 141 of the guides 130 and 140 in the running direction of the transfer foil 1 are curved so as to form gaps C1 to C4 between the guide foils 131 and 141, foil saving or the like can be performed. In addition, when the transfer foil 1 moves, the transfer foil 1 can be prevented from being caught at both ends in the traveling direction of the guide surfaces 131, 141 of the guides 130, 140, and the transfer foil 1 is damaged. Can be more reliably suppressed.

  Further, since the surfaces 132 and 142 of the guides 130 and 140 facing the pressing roller 112 have an arc shape along the outer peripheral surface of the pressing roller 112, the guides 130 and 140 are connected to the pressing roller 112. The transfer foil 1 can be made as close as possible, and the useless travel path of the transfer foil 1 can be eliminated, so that the disturbance of the tension of the transfer foil 1 due to the rear end side of the sheet 2 can be prevented more reliably, It is possible to more reliably prevent wrinkles and meandering from occurring on the transfer foil 1. Further, since the surface 132 of the feeding guide 130 has an arc shape as described above, the feeding guide 130 can be as close as possible to the pressing roller 112, and the sheet 2 Since the trailing edge can be surely received by the feeding guide 130, the transfer foil 1 can be more reliably prevented from being disturbed in tension, and the transfer foil 1 can be wrinkled or meandered. Can be prevented more reliably.

  Further, since the opposing point P side of the guides 130 and 140 between the pressing roller 112 and the transport drum 111 is formed to become thinner toward the opposing point P, the guides 130 and 140 are opposed to the opposing points P. The vicinity of the point P can be made as close as possible. In particular, when the feeding guide 130 is moved as close as possible to the opposite point P, the jumping of the rear end side of the sheet 2 can be reliably received by the feeding guide 130. It is possible to more reliably prevent the transfer foil 1 from being disturbed in tension by the rear end side, and more reliably prevent the transfer foil 1 from being wrinkled or meandered.

  In the present embodiment, the discharge guide 140 is formed so that the thickness of the pressure roller 112 in the radial direction is thinner in the traveling direction upstream than in the middle and downstream of the transfer foil 1 in the traveling direction. In addition, the surface 142 located on the inner side in the radial direction and facing the pressing roller 112 is formed in an arc shape along the outer peripheral surface of the pressing roller 112. As another embodiment, for example, As shown in FIGS. 8 and 9, an injection hole 241 a for injecting air is formed on a guide surface 241 that is formed in a circular tube shape and is located outside in the radial direction of the pressing roller 112 and guides the movement of the transfer foil 1. It is also possible to arrange and apply a large number of discharge guides 240 formed in the same manner as the discharge guide 140.

  However, as described above, the discharge guide 140 applied in this embodiment can be as close to the pressing roller 112 as possible, and the pressing roller 112 and the conveying cylinder 111 are opposed to each other. Since it can be as close as possible to the vicinity of the point P, the transfer foil for the sheet 2 immediately after the facing point P is located downstream of the facing point P of the transfer foil 1 in the running direction of the transfer foil 1. 1 (peeling angle) can be made large without contacting the pressing roller 112, so that the foil 2 is transferred from the transfer foil 1 to the sheet 2 immediately after the foil is transferred to the sheet 2. It is possible to prevent the transfer foil 1 from being peeled off and to prevent the transfer foil 1 from sticking to the sheet 2, and to the rear end side of the sheet 2. The disturbance of the tensile force of the transfer foil 1 more reliably prevented in that, since the wrinkles and meandering occurs in the transfer foil 1 can be more reliably prevented, highly preferred.

  Further, in the present embodiment, after the pressing surface layer member 112c of the pressing roller 112 transfers the foil of the transfer foil 1 to the sheet 2 supported by the conveying cylinder 111, the cutting of the pressing roller 112 is performed. When the notch 112a and the notch 111a of the transport cylinder 111 are opposed to each other and the transfer foil 1 is traveling in the notch 112a of the pressing roller 112, that is, the transport cylinder 111 and While being guided so as not to contact the pressing roller 112, the transfer foil 1 is pulled back from the winding shaft 114 side to the feeding shaft 113 side for a predetermined length to perform foil saving. As another embodiment, for example, as shown in FIG. 10, a concave notch 112ca is formed in the pressing surface layer member 112c of the pressing roller 112. The notch 112ca of the pressing surface layer member 112c of the pressing roller 112 and the conveying drum 111 face each other, and the transfer foil 1 passes through the notch 112ca of the pressing surface layer member 112c of the pressing roller 112. When traveling, that is, when guided so as not to contact the transport drum 111 and the pressing roller 112, the transfer foil 1 is moved from the winding shaft 114 side to the feeding shaft 113 side by a predetermined length. It is also possible to perform foil saving by pulling back. As described above, when the notched portion 112ca is formed in the pressing surface layer member 112c, when the transfer foil 1 travels in the notched portion 112a of the pressing roller 112, the pressing roller The transfer foil 1 is pulled back from the winding shaft 114 side to the feeding shaft 113 side by a predetermined length in both cases when traveling in the notch 112ca of the pressing surface layer member 112c. It is also possible to perform each foil saving.

  Further, in the present embodiment, the sheet 2 having a shape corresponding to the pattern is formed by pressing the transfer foil 1 with the pressing roller 112 onto the sheet 2 to which the adhesive has been transferred in advance corresponding to the pattern. Although the case where it is applied to the cold foil transfer (cold foil transfer) type for transferring the foil to the above has been described, as another embodiment, for example, it is possible to heat a stamping die having a pattern formed thereon. Using a pressing roller provided on the outer peripheral surface, the foil foil of the transfer foil is transferred to the sheet-like material via the adhesive layer by pressing the transfer foil having the adhesive layer against the sheet-like material (hot Even the foil stamping type can be applied in the same manner as in this embodiment.

  Further, in the present embodiment, the case where the foil of the transfer foil 1 is transferred to the sheet 2 that is a sheet-like material has been described. However, the present invention is not limited to this, and flexibility such as a web is provided. In the case of transferring a foil of a transfer foil to a transfer target such as a flat body having the same, it can be applied in the same manner as in the present embodiment.

  The foil transfer device according to the present invention can be reliably used in foil saving while easily stabilizing the tension of the transfer foil, and can be used extremely beneficially in various industries.

It is a schematic block diagram of the principal part of embodiment of the foil transcription | transfer apparatus which concerns on this invention. It is an extraction enlarged view of the principal part of FIG. FIG. 3 is an enlarged view of the main part of FIG. 2. It is action | operation explanatory drawing of the principal part of the foil transcription | transfer apparatus of FIG. FIG. 5 is an operation explanatory diagram following FIG. 4. FIG. 6 is an operation explanatory diagram following FIG. 5. FIG. 7 is an operation explanatory diagram following FIG. 6. It is a schematic block diagram of the principal part of other embodiment of the foil transcription | transfer apparatus which concerns on this invention. It is action | operation explanatory drawing of the principal part of the foil transcription | transfer apparatus of FIG. It is explanatory drawing of the foil saving of other embodiment of the foil transcription | transfer apparatus which concerns on this invention. It is a schematic block diagram of the principal part of an example of the conventional foil transcription | transfer apparatus. It is explanatory drawing of the problem of an example of the conventional foil transcription | transfer apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transfer foil 2 Sheet | seat 111 Conveying cylinder 111a Notch part 111b Holding device 112 Press roller 112a Notch part 112b Winding device 112c Press surface layer member 112ca Notch part 113 Feed shaft 114 Winding shaft 115 Swing arm 116, 117 Moving rollers 118 to 126 Guide rollers 128 and 129 Transfer cylinder 130 Feed guide 131 Guide surface 131a Ejection hole 132 surface 140 Discharge guide 141 Guide surface 141a Ejection hole 142 surface

Claims (9)

A support cylinder that is rotatably supported and supports the transfer object on the outer peripheral surface;
A pressing cylinder disposed so as to face the support cylinder and rotatably supported;
A foil transfer device for transferring the foil of the transfer foil to the transfer body by running a belt-like transfer foil provided with a foil on a base film and the transfer body between the support cylinder and the pressing cylinder. There,
A foil saving mechanism for performing foil saving so as to pull back the transfer foil when the transfer foil is running so as not to contact the support cylinder and the pressing cylinder;
It is arranged near the pressing cylinder on the downstream side in the running direction of the transfer foil on the pressing cylinder side near the opposing point between the supporting cylinder and the pressing cylinder, and closer to the pressing cylinder side than a tangent line passing through the opposing point. A downstream guide member for guiding the transfer foil toward the
The surface facing the pressing cylinder of the downstream guide member has an arc shape along the outer peripheral surface of the pressing cylinder ,
The radially outer surface of the pressing cylinder of the downstream guide member forms an arcuate guide surface that guides the transfer foil,
The foil transfer characterized in that the downstream guide member is formed such that the thickness in the radial direction of the pressing cylinder on the upstream side in the running direction of the transfer foil becomes thinner toward the upstream side in the running direction. apparatus. In the foil transfer device according to claim 1,
The transfer foil is disposed in the vicinity of the pressing cylinder on the upstream side in the traveling direction of the transfer cylinder on the pressing cylinder side in the vicinity of the opposing point between the support cylinder and the pressing cylinder, and the transfer foil is disposed on the radially outer surface of the pressing cylinder. It includes an upstream-side guide member having an arcuate guide surface for guiding the,
The surface of the upstream guide member facing the pressing cylinder has an arc shape along the outer peripheral surface of the pressing cylinder,
The foil transfer is characterized in that the upstream guide member is formed such that the thickness in the radial direction of the pressing cylinder on the downstream side in the running direction of the transfer foil becomes thinner toward the downstream side in the running direction. apparatus. In the foil transfer device according to claim 1,
The downstream guide member, the foil transfer apparatus, characterized in that it has an injection hole provided on the guide surface to eject air supplied from air supply means. In the foil transfer device according to claim 2 ,
The foil transfer device, wherein the upstream guide member has an injection hole provided on the guide surface for injecting air from an air supply unit. In the foil transfer device according to claim 1,
Wherein the guide surface of the downstream guide member, the foil transfer apparatus, characterized in that is obtained by bending the end portion in the running direction upstream side of the transfer foil to produce a gap between the transfer foil. In the foil transfer device according to claim 2,
The foil transfer device, wherein the guide surface of the upstream guide member has a curved end on the downstream side in the running direction of the transfer foil so that a gap is formed between the guide surface and the transfer foil. In the foil transfer device according to claim 5 ,
The foil transfer apparatus , wherein the guide surface of the downstream guide member has a curved end on the downstream side in the running direction of the transfer foil so as to form a gap with the transfer foil . The foil transfer device according to claim 6 ,
The foil transfer device , wherein the guide surface of the upstream guide member has a curved end on the upstream side in the running direction of the transfer foil so as to form a gap with the transfer foil . In the foil transfer device according to claim 1,
The pressing cylinder has a notch on the outer peripheral surface;
The downstream guide member guides the transfer foil so that the transfer foil travels into the notch of the pressing cylinder when the notch of the pressing cylinder faces the support cylinder. Characteristic foil transfer device.

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