JP6522874B2 - Manufacturing method of decorated cylinder - Google Patents

Description

The present invention relates to a method of manufacturing a decorative cylinder .

  Conventionally, as a method for producing a decorative cylinder, for example, as described in Patent Document 1 below, a transfer film having a printable layer that can be transferred while rotating the cylinder around its axis is the cylinder by the stamp plate. There is known a method of manufacturing a decorated cylinder by transferring in a state of being pressed onto the outer peripheral surface of the body and transferring the printing layer to the outer peripheral surface of the cylinder.

Japanese Patent Application Publication No. 2007-320158

  However, in the conventional method for producing a decorative cylinder, for example, when the cross-sectional shape of the cylinder is a square or an oval, etc., or the cross-sectional shape of the cylinder is circular, the thickness of the cylinder is not sufficient. If the radius of the outer peripheral surface of the cylinder is not uniform over the entire circumference, as in the case of uniformity, the pressing force of the stamp plate on the outer peripheral surface of the cylinder is not equal over the entire circumference, There is a problem that it is difficult to accurately and stably transfer the printing layer to the outer peripheral surface in a desired manner.

The present invention has been made in consideration of such circumstances, and even if the radius of the outer peripheral surface of the cylindrical body is not equal over the entire circumference, regardless of the circumferential position of the outer peripheral surface of the cylindrical body, It aims at providing the manufacturing method of the decoration cylinder which can transfer the printing layer of a transfer film stably precisely.

In order to solve the above problems and achieve such an object, a method of manufacturing a decorated cylinder according to the present invention comprises supporting means for rotatably supporting the cylinder around its axis, and the outer periphery of the cylinder. Using a manufacturing apparatus provided with a stamp plate pressing a surface, a transfer film having a transferable print layer being transferred by the stamp plate while rotating the cylinder about its axis by the support means; A method for manufacturing a decorated cylinder, comprising: transferring a printed material onto the outer peripheral surface of the cylinder by transferring the printing layer while pressing onto the outer peripheral surface; An extendable biasing means for biasing at least one of the support means and the stamp plate toward the other and supporting the other to be able to move backward with respect to the other, the outer periphery of the cylinder being provided Of the faces, the stamp version is the transfer file. Radius in contact with the contact portion through the arm, so as to follow the variation with the axial line around the rotation of the cylindrical body, and wherein the expanding and contracting the urging means.

According to the present invention, when the radius at the contact portion of the cylinder becomes smaller, the biasing means is actuated to advance at least one of the cylinder and the stamp plate toward the other, Further, when the radius at the contact portion of the cylinder increases, the biasing means is actuated to retract at least one of the cylinder and the stamp plate from the other. This makes it possible to always keep the pressing force of the stamp plate on the cylinder substantially equal regardless of the variation of the radius at the contact portion of the cylinder due to the rotation of the cylinder around the axis.
Therefore, even if the radius of the outer peripheral surface of the cylinder is not uniform over the entire circumference, the printing layer of the transfer film can be accurately and stably transferred regardless of the circumferential position of the outer peripheral surface of the cylinder. it can.

  Here, the manufacturing apparatus is provided with a base portion, and a rocking member supported on the base portion so as to be rockable about a rocking axis, and on which the supporting means is mounted, The biasing means connects the base portion and the rocking body, and the supporting means and the biasing means are separately provided on both sides of the rocking axis in a side view as viewed from the rocking axis direction. The rocking member is arranged so as to follow the fluctuation of the radius of the contact portion of the cylinder along with the rotation of the cylinder around the axis, and rock the oscillator around the rocking axis. The biasing means may be extended or retracted.

  In this case, since the fluctuation of the radius at the contact portion of the cylinder caused by the rotation of the cylinder around the axis is made to follow, the rocking member is rocked about the rocking axis, and the biasing means is expanded and contracted. For example, as compared with the case where the biasing means is directly connected to the support means, it is possible to make the expansion and contraction mode of the biasing means stable.

  According to the present invention, even if the radius of the outer peripheral surface of the cylindrical body is not equal over the entire circumference, the printed layer of the transfer film can be accurately and stably regardless of the circumferential position of the outer peripheral surface of the cylindrical body. It can be transferred.

It is a side view of the manufacture device for enforcing the manufacturing method of the decoration cylinder shown as one embodiment concerning the present invention. It is the sectional view on the AA line arrow of the manufacturing apparatus shown in FIG.

Hereinafter, with reference to the drawings, a method for manufacturing a decorated cylinder and a decorated cylinder according to an embodiment of the present invention will be described.
First, a schematic configuration of a manufacturing apparatus 10 for performing a method of manufacturing a decorative cylinder will be described.

The manufacturing apparatus 10 includes support means 11 for supporting the cylindrical body W rotatably about its axis O1, and a stamp plate 12 for pressing the outer peripheral surface of the cylindrical body W.
The support means 11, as shown in FIGS. 1 and 2, a bearing stand 13 and a support shaft which protrudes horizontally from the bearing stand 13 and which is rotatably supported about its axis extending horizontally to the bearing stand 13. And a unit. The support shaft portion 14 is inserted into and fixed in the cylindrical body W, whereby the cylindrical body W is rotatably supported by the support means 11 around the axis O1. The support shaft portion 14 and the cylindrical body W are disposed coaxially. Further, the support means 11 is provided with drive means (not shown) for supporting the support shaft portion 14 rotatably about its axis.

The stamp plate 12 is disposed above the support means 11. The stamp plate 12 is disposed slidably in the lateral direction perpendicular to the direction in which the axis O1 extends in the horizontal direction. The stamp plate 12 is arranged to be movable up and down. In addition, the stamp plate 12 is provided with a heating unit (not shown). On the lower surface of the stamp plate 12, a concavo-convex shape corresponding to characters, figures, or symbols to be transferred to the outer peripheral surface of the cylindrical body W is engraved.
Furthermore, the manufacturing apparatus 10 is not shown to wind the transfer film F having a transferable print layer, which is not shown, which feeds the transfer film F toward the cylindrical body W, and the transfer film F which has passed over the outer peripheral surface of the cylindrical body W. And a winding unit. The delivery unit and the take-up unit are disposed so as to deliver and transfer the transfer film F between the cylindrical body W and the stamp plate 12 in one of the lateral directions (right direction in FIG. 1). It is set up.

And, in the present embodiment, at least one of the cylindrical body W and the stamp plate 12 is urged toward the other in the manufacturing apparatus 10, and the elastic attachment is supported so as to be able to move backward with respect to the other. A biasing means 15 is provided.
In the illustrated example, the biasing means 15 biases the cylinder W toward the stamp plate 12 and supports the stamp plate 12 so as to be able to move backward. The biasing means 15 is a coil spring.

Furthermore, in the present embodiment, the manufacturing apparatus 10 is supported on the base portion 16 and on the base portion 16 so as to be swingable around the swinging axis O2, and the swinging body 17 to which the support means 11 is attached And. The swing axis O2 extends parallel to the axis O1 at a distance. The rocking axis O2 is located below the axis O1 and in one of the lateral directions. The swinging axis O2 may extend in a direction intersecting the axis O1.
The base portion 16 includes a main plate portion 16a whose upper and lower surfaces extend in the horizontal direction, and a support plate portion 16b which protrudes upward from the main plate portion 16a.
The rocking body 17 includes a mounting plate 17a whose upper and lower surfaces extend in the horizontal direction, and a bearing plate 17b protruding downward from the mounting plate 17a. The mounting plate portion 17 a is disposed above the base portion 16.
Here, the rocking body 17 is rocked to the base portion 16 by connecting the support plate portion 16b and the bearing plate portion 17b via the shaft portion 18 disposed coaxially with the rocking axis O2. It is swingably supported around the axis O2.

Here, the biasing means 15 connects the base portion 16 and the rocking body 17.
In the illustrated example, the biasing means 15 connects the upper surface of the main plate portion 16 a of the base portion 16 and the lower surface of the mounting plate portion 17 a of the rocking body 17.
The support means 11 is disposed on the upper surface of the mounting plate portion 17 a of the rocking body 17.
And in the side view seen from the direction of the rocking axis O2 as shown in FIG. 1, the supporting means 11 and the biasing means 15 are separately disposed on both sides of the rocking axis O2.

  Next, a method of manufacturing a decorative cylinder using the manufacturing apparatus 10 configured as described above will be described.

First, the stamp plate 12 is moved forward toward the cylindrical body W, and the stamp plate 12 is pressed onto the outer peripheral surface of the cylindrical body W via the transfer film F. At this time, the transfer film F is drawn out and slackened by about the circumference of the outer peripheral surface of the cylindrical body W, and the transfer film F in the slack state is placed on the outer peripheral surface of the cylindrical body W.
Then, while rotating the cylindrical body W around its axis O1 by the supporting means 11, the stamp plate 12 is transferred to one side in the lateral direction together with the loose transfer film F, and the outer peripheral surface of the cylindrical body W is obtained. The decorative cylinder 1 is manufactured by transferring the said printing layer to this. The cylindrical body W is always urged toward the upper side of the stamp plate 12 by the urging means 15 while the outer peripheral surface thereof is pressed by the stamp plate 12.
Thereafter, the stamp plate 12 is moved backward from the cylinder W to return to the original position. Further, in the transfer film F fed out by the feeding portion, a portion of the transfer layer transferred to the outer peripheral surface of the cylindrical body W is wound by the winding portion. In addition, this winding may be performed any time after transferring the printing layer to the outer peripheral surface of the cylindrical body W.

  Here, when the radius of the outer peripheral surface of the cylindrical body W is not equal over the entire circumference, the radius of the contact portion of the outer peripheral surface of the cylindrical body W where the stamp plate 12 abuts through the transfer film F is the cylinder It fluctuates as the body W rotates about the axis O1. And while following the fluctuation of the radius in the above-mentioned contact portion of cylinder W accompanying rotation of cylinder W around the above-mentioned axis O1, urging means, rocking body 17 is rocked around rocking axis O2, 15 stretches.

As explained above, according to the manufacturing method of the decoration cylinder by this embodiment, when the radius in the said contact portion of cylinder W becomes small, energizing means 15 is shrunk, and cylinder W Moves forward toward the stamp plate 12, and when the radius of the contact portion of the cylinder W increases, the biasing means 15 extends and the cylinder W retracts from the stamp plate 12. Thereby, the pressing force of the stamp plate 12 against the cylinder W is always kept approximately equal regardless of the variation of the radius of the contact portion of the cylinder W with the rotation of the cylinder W around the axis O1. It will be possible.
Therefore, even if the radius of the outer circumferential surface of the cylindrical body W is not equal over the entire circumference, the printing layer of the transfer film F is accurately and stably transferred regardless of the circumferential position of the outer circumferential surface of the cylindrical body W can do.

  Further, the biasing means is caused to follow the fluctuation of the radius of the contact portion of the cylindrical body W along with the rotation of the cylindrical body W about the axis line O1, thereby rocking the rocking body 17 about the rocking axis O2. Since the expansion and contraction 15 is performed, for example, compared with the case where the urging means 15 is directly connected to the support means 11, the expansion and contraction aspect of the urging means 15 can be easily stabilized.

In the decorative cylinder 1 formed by the method for manufacturing a decorative cylinder of the present embodiment, the printing layer of the transfer film F is accurately transferred regardless of the circumferential position on the outer peripheral surface of the cylinder W.
When the cross-sectional shape of the cylindrical body W is a tetragonal shape with an angle of about 90 °, the radius of curvature at which the corners protrude radially outward is preferably 10 mm or more. If the length is 15 mm or more, the above-described effects are surely achieved.
In addition, in the case where the cross-sectional view shape of the cylindrical body W is an angular shape having five or more corner portions, the above-described effects can be surely achieved even when the radius of curvature of the corner portions is less than 10 mm.

  The present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the scope of the invention.

For example, although the manufacturing apparatus 10 which has the base part 16 and the rocking body 17 was shown in the said embodiment, you may employ | adopt the manufacturing apparatus 10 which does not have the base part 16 and the rocking body 17.
Further, the biasing means 15 may be directly connected to the support means 11 instead of the above embodiment.
Further, the biasing means 15 may bias the stamp plate 12 toward the cylindrical body W, and may support the cylindrical plate W so as to move backward. Furthermore, as long as the biasing means 15 can always keep the pressing force of the stamp plate 12 on the cylinder W substantially equal, the biasing means 15 may be appropriately changed instead of the coil spring. For example, a servo mechanism may be employed instead of the coil spring, or a configuration having both the coil spring and the servo mechanism may be employed. In the latter case, it is possible to control and adjust the above-described pressing force (force for urging the cylinder W toward the stamp plate 12) with high accuracy.
Moreover, it may replace with the said embodiment and may transfer a printing layer to the outer peripheral surface of the cylindrical body W, performing delivery and winding-up of the transfer film F. FIG.
Moreover, although the uneven | corrugated shape corresponding to a character, a figure, or a symbol transferred to the outer peripheral surface of the cylinder W was engraved on the lower surface of the stamp plate 12, it replaces with this and forms the lower surface of the stamp plate 12 smoothly. On the other hand, the transfer film F may be employed in which the printing layer is described in correspondence to the characters, figures, or symbols described above.
In addition, the stamp plate 12 may not be provided with the heating means.
Moreover, in the said embodiment, although hot stamping was shown as a manufacturing method of a decorating cylinder, it may change suitably not only this.

  In addition, it is possible to replace the components in the above-described embodiment with known components as appropriate without departing from the spirit of the present invention, and the above-described modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 decorated cylinder 10 manufacturing apparatus 11 support means 12 stamp version 15 urging means 16 base part 17 rocking body F transfer film O1 axis line O2 rocking axis W cylinder

Claims (2)

Supporting means for rotatably supporting the cylinder about its axis;
Using a manufacturing apparatus provided with a stamp plate for pressing the outer peripheral surface of the cylindrical body,
While rotating the cylinder around its axis by the support means,
Transferring the transfer film having the transferable printing layer in a state of being pressed onto the outer peripheral surface of the cylinder by the stamp plate;
It is a manufacturing method of a decoration cylinder which manufactures a decoration cylinder by transferring the printing layer to the peripheral face of the cylinder,
The manufacturing apparatus is provided with a telescopic biasing means for biasing at least one of the support means and the stamp plate toward the other and supporting the other to move backward with respect to the other.
The biasing means is adapted to follow the variation of the radius of the contact portion of the outer peripheral surface of the cylinder where the stamp plate abuts via the transfer film due to the rotation of the cylinder about the axis. The manufacturing method of the decorating cylinder characterized by expanding and contracting. It is a manufacturing method of the decoration cylinder according to claim 1,
In the manufacturing apparatus,
Base part,
A rocking body supported on the base portion so as to be rockable about a rocking axis and to which the support means is mounted;
The biasing means connects the base portion and the oscillating body,
In the side view viewed from the swing axis direction, the support means and the biasing means are separately disposed on both sides of the swing axis,
The biasing means is extended or contracted while swinging the swinging body around the swinging axis, following the change of the radius of the contact portion of the tube with the rotation of the cylinder about the axis. A manufacturing method of a decoration cylinder characterized by the above.

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