JPH06166169A - Decorating method and device - Google Patents

Abstract

PURPOSE: To provide a decoration apparatus simple in a structure transferring decoration to the surface of a conical article from a stamping foil. CONSTITUTION: A stamping foil 22 is supplied in the direction of a stamping roller 12 from a guide roller 32 to transfer the decorations arranged on the surface of the stamping foil 22 to the conical surface 20 of an article 24. The guide roller 32 is moved to a predetermined position along a bow-shaped guide means 36 by a third drive means 34. The position is adjusted to the angle-of- rotation position of the decorative article 24. The operation of the first drive means 16 driving the stamping roller 12 is stopped during stamping operation to stop the driving of the stamping roller 12. Therefore, the stamping roller 12 is driven by only frictional engagement during stamping operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for decorating an article having a partial conical surface.

[0002]

2. Description of the Related Art Coloring, patterns, photographs and the like (hereinafter referred to as decoration for simplification of description) on a cone surface of an article are decorated in various situations. Here, the article does not have a conical shape as a whole, but may have a part having a conical shape and the other part having a cylindrical shape, and the conical portion must be decorated. Items are included. One of the methods for decorating the conical surface of such an article is to use a stamping foil. This stamping foil is also called an embossing foil or a transfer foil, such as a stamping foil. DE 39 31 5
56 C2 discloses one aspect of such a method. A plurality of decorations are continuously arranged on the stamping foil, and the stamping foil is unwound from a feeding roll and supplied to a stamping station which comes into contact with a decorative article. In this case, the decoration is transferred from the foil to the article surface by a stamp or an applicator roller (hereinafter, referred to as a stamp roller for simplification of description). The surface of this stamp roller is cylindrical, and the roller is freely driven by a suitable driving means. The foil is wound around and guided by a direction changing roller that is interlocked with the feed roller. This direction-changing roller is arranged upstream of the stamping station in front of the direction of travel of the foil. The foil is fed from the direction change roller to the stamp station, at which time the direction change roller is moved to a position that is properly adjusted to the rotational angular position of the article on which the decoration is transferred.

In this method, the direction changing roller continuously moves linearly for a distance equal to the difference between the linear movement path of the stamp roller and the circular arc when the conical surface of the decorative article is developed. At the same time, the direction changing roller is constantly oscillating so as to correct the linear movement of the stamp roller with respect to the opening angle when the conical surface of the article is developed in an arc shape. In a preferred embodiment of the apparatus for carrying out the method, the direction changing roller is attached to a fixed member rotatable about a longitudinal axis. The fixing member is further connected to the adjusting platform by means of a pivot shaft. The platform is mounted on the fixed base member by a drive for linear movement. The fixed member includes a detection element slidably guided on the surface of a guide device mounted on the fixed base member. Therefore, as a design configuration, a plurality of structural members that cooperate slidably with each other and have a large degree of mechanical friction are required. Manufacturing such individual parts increases the manufacturing cost of the device.

Further, in a stamping foil feeding device for a stamping device, German Published Patent Application (DE-AS) No. 27 21
As disclosed in 908, decoration is performed by using a stamping foil on the circumferential surface of an article such as a TV case having the shape of a square pyramid having a flat head. The stamping foil is fed from a feed roll that is axially movable and is substantially parallel to the stamp or applicator roller of the stamping station. A guide roller guides the pressing foil between the feed roll and the stamp roll before the transfer to the corresponding surface of the decorative article. The guide roller is movable in parallel to apply tension to the pressing foil,
Further, it is rotatably arranged around a horizontal axis perpendicular to the decorative surface of the article. In order to guide the stamping foil as the stamping foil moves from the feeding roll to the stamping roll, the guide roller interlocking with the feeding roll for stamping foil is in the form of a floating roller. That is, the guide roller is movably attached, and automatically adapts stepwise according to the operating condition determined by the relationship between the pressing foil and the surface of the decorative article. In this case, since the decorative article has the shape of a flat-headed quadrangular pyramid and has a plurality of flat surfaces, the floating roller moves according to the fluctuation of the tension of the stamping foil. However,
For example, the situation is different when handling an article having a conical surface such as when handling an article having a truncated cone shape. Such articles include, for example, liquid cans and the like.

In the case of a method of laterally guiding a moving material web along a part of its path of movement, the German published publication (D)
E-OS) No. 20 06 571, the web is fed along a main web guide roller. The main web guide roller oscillates in a plane of movement away from the neutral position. In the neutral position, the main web guide rollers are perpendicular to the desired path of web travel. When the web moves on the surface of the main web guide roller, the lateral position of the web is detected at the detection position upstream of the guide roller. The main web guide roller swings away from the neutral position of the main web guide roller in a direction that appropriately corrects the deviation of the web from the desired moving path. After passing the main web guide roller, the web diverts in the direction of the discharge web guide roller. Then, the web separates from the discharge web guide roller at a position adjacent to the same surface as the detection position and perpendicular to the moving surface of the main web guide roller. The discharge web guide roller is held parallel to the main web guide roller while the main web guide roller is swinging.

Finally, British Patent No. 1 282 58
No. 8 discloses a device for spirally winding a cord-like material on the surface of a cylindrical or frustoconical article.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior art, and its object is to accurately register a decoration to, for example, a conical surface of an article by using relatively simple means. Thus, it is an object of the invention to provide a method of decorating an article having at least a conical surface with a decoration of a stamping foil.

Another object of the present invention is to transfer the decoration from the stamping foil to the conical surface of the article, and to accurately apply the decoration to an intended position on the article without using a complicated combination of movements. It is to provide a decoration method with excellent reliability and accuracy.

Still another object of the present invention is a device for decorating an article having at least a part of a conical surface, which is reliable in that the decoration required for the article is accurately transferred. Another object of the present invention is to provide a decoration device having a small number of parts and a simple movement.

Still another object of the present invention is a device for applying a decoration to a conical surface of an article, which can accurately transfer the decoration to a registration position with respect to the surface of the article, and
An object of the present invention is to provide a decoration device that can be easily adapted to articles of different sizes and shapes.

[0011]

In order to achieve the above object, in the first preferred embodiment of the present invention, a method for decorating an article, at least a part of which is a conical surface, by decorating a stamping foil, A stamped foil having a plurality of decorations continuously arranged is unwound from a feed roll and supplied to a stamp or an applicator station for receiving a decorative article. In this station, a stamp or applicator roller with a cylindrical surface is used to transfer the decoration from the foil to the conical surface of the article by the first drive means. The foil is guided to a redirecting guide roller. The direction-changing guide roller is interlocked with the feed roll, and is arranged upstream of the station in the forward direction of the foil. From the guide roller, the foil is delivered to the stamp station. The guide roller moves to a position that matches the rotation angle position of the decorative article. At this time, the guide roller is moved by the second drive means along an arcuate guide which is arranged in the same plane as the common generatrix between the cylindrical surface of the stamp roller and the conical surface of the article. The center of the curved surface of the arcuate guide is located on the common generatrix between the stamp roller and the article. During the stamping operation, the article is driven by the corresponding third drive means, separating the stamp roller from the first positioning drive means. Next, the stamp roller is driven only by frictional engagement.

In another aspect of the present invention, an apparatus for decorating an article having at least a conical surface by using a decoration of a stamping foil includes a feeding roll means for a stamping foil in which a plurality of decorations are continuously arranged, and a decoration. The stamp station is configured to receive an article to be used, and the stamp station is configured to include a holding means for holding an article supplied to the station and a stamp roller having a cylindrical surface. The stamp roller may be a heatable roller. The decorating device further comprises first stamp roller driving means for positioning the stamp roller relative to the foil at the station. A direction changing guide roller is arranged upstream of the station in the moving direction of the foil supplied to the station, and the guide roller is interlocked with the feed roll. The decoration device has a moving means for moving the guide roller to a position suitable for each rotation angle position of the decorative article. The transportation means is
It comprises arcuate guides flush with the common generatrix between the cylindrical surface of the stamp roller and the conical surface of the article.
The second drive means can move the guide roller along the guide means. The center of the curved surface of the guide means is located on the common generatrix between the stamp roller and the article, and a part of the guide means is parallel to the common generatrix. Further, the guide means extends from the parallel portion toward the side farther from the intersection of the generatrix of the article. The third drive means drives the holding means for articles.

[0013]

The decoration method and device of the present invention have the above-mentioned structure, and require only simple arcuate guide means to accurately position the guide roller with respect to the article to which the decoration is transferred. . The direction changing guide roller is moved along the arcuate guide means by the second drive means. Such guide means are described in DE 39
It is much easier to manufacture than the multiple staggered cooperating parts used in the device disclosed in 31 556 C2. Further, in terms of adjusting a plurality of operations, the configuration of the device of the present invention has an advantage that it can be used with high accuracy for a relatively long period. During the stamping operation, the decorative article is driven by an associated third drive means which is a means of holding the article at the stamping station. For this reason, the stamp or applicator roller is separated from the first drive means which only positions the stamp roller before performing the actual stamping operation. The stamp roller is then driven solely by frictional engagement. According to the decoration method and device of the present invention, it is possible to easily transfer the decoration to the articles having different sizes and conical shapes with accurate registration by using the same device and method as the device and method of the present invention. .

In a preferred embodiment of the invention, the center of the curved surface of the arcuate guide means is not only on a common generatrix between the stamp roller and the decorative article, but more particularly
It is located in the middle of the bus bar of the article. Therefore, the stamping foil can be transferred perpendicularly to the axis of the decorative conical article and the stamping operation can be performed.

According to a preferred aspect, in the decoration device, the first driving means separates from the stamp roller during the stamping operation, and at the same time, the guide roller appropriately moves along the guiding means by the second driving means, Control means connected to the first, second and third drive means so that the article is appropriately driven by the third drive means while the stamp roller is driven only by frictional engagement separated from the first drive means. It is equipped with. Each of the driving means can be appropriately driven by an electronic control means, and in a preferred embodiment of the present invention, the driving means is an electric motor.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a decoration device and method according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a plan view of a device 10 for transferring a decoration to the conical surface of an article. The device comprises a stamp or applicator roller 1 having a cylindrical surface 14.
It is composed of two. This applicator roller can be heated and can be driven by the first drive means 16 for proper positioning. A drive communication between the drive means 16 and the roller 12 is indicated at 18.

Referring now to FIG. The same members as those in FIG. 1 are designated by the same reference numerals. The article 24 comprises a substantially conical surface 20 onto which the decoration is stripped from the stamping foil 22 of FIG. The article 24 is pressed against the cylindrical surface 14 of the roller 12. In FIG. 1, the article 24 is located below the roller 12 and is shown in dotted lines. The conical article 24 is pressed against the cylindrical surface 14 of the roller 12 via a generating line 26. The article is supported by a holding means which is drivable by a third drive means 28 shown in FIGS. The drive connection of the drive means 28 and the article 24 in the holding means is indicated by the arrow 30 in FIGS.

During operation of the apparatus, the foil 22 is unwound from a feed roll (not shown), and the direction changing guide roller 32 is used.
To be wound up. The direction changing guide roller is interlocked with the feed roller, and the second driving means 34 of FIG.
Moves along the arcuate guide means 36. The arcuate guide means 36 are arranged flush with the common generatrix 26 between the cylindrical surface 14 of the roller 12 and the conical surface 20 of the article 24. The plane is perpendicular to the drawing of FIG. 2 and is indicated by a chain double-dashed line in FIG. The radius of curvature of the guide means 36 is indicated by R in FIG. 1, and the center 40 of curvature of the guide means is located in the intermediate region of the common generatrix 26 of the article 24. Thus, the foil 22 can be fed to a stamping station indicated by the reference numeral 42 in FIG. 2 between the roller 12 and the article 24 at the beginning of the stamping operation which transfers the decoration from the foil 22 to the surface 20 of the article 24. . That is, the foil can be fed perpendicularly to the shaft 44 of the roller 12 and the common busbar 26 shown in FIG.

The first drive means 16, the second drive means 34 and the third drive means 28 are connected to an electronic control means 46 shown in schematic block form in FIG. Guide roller 32
The control means 46 turns off the drive of the roller 12 via the first drive means 16 during the stamping operation so that the decoration is always properly transferred to the article 24 by appropriately adjusting the article and the article 24 with each other, and at the same time, the second drive means. 34 drives the guide roller 32, and the third drive means 28 drives the stamp station 42.
Drive the holding means holding the article at. Foil 22
During the stamping operation to transfer the decoration from the article 24 to the article 24, the stamp roller is not driven by the corresponding drive means, but only by frictional engagement with the article. Therefore, the drive means 16 is adapted to the foil 22 of the stamp station 42.
It only positions the roller 12 relative to. With such a structure, the movements of the guide roller 32 and the foil 22 are not restricted too much, and therefore, the decoration can be accurately transferred to the article regardless of its size and / or shape. It becomes possible to do.

The three-dot chain line in FIG. 1 shows the intermediate position of the guide roller 32 on the arcuate guide means 36 and the corresponding position of the foil 22 which correctly transfers the decoration to the circumference of the conical article 24.

As can be seen from FIG. 1, the conical article 24
Of the two bus lines are shown as thin lines, and these bus lines intersect at a common intersection 48. Bow-shaped guide means 36
Has a portion 50 that is at least substantially parallel to the common generatrix 26 of the roller 12 and the conical or frustoconical article 24. The arcuate means extend from the parallel portion in a direction away from the intersection 48 of the generatrix of the article 24.

Accordingly, as can be seen from the above description of the apparatus and method of the present invention for transferring a decoration to an article 24, the first drive means 16 drives the roller 12 to accurately register it with the decoration of the foil 22. To do. When the positioning operation is executed, for example, the driving means is turned off and the first driving means is separated from the roller 12. As a result, the roller 12 is no longer driven by the first drive means 16. The roller 12 is then further driven along the circumferential surface of the decorative article only by frictional engagement with the decorative article. The guide roller 32 and further the foil 22 move relative to the stamp station 42 along the arcuate guide means 36, but such that the foil does not become undesirably curved or twisted as it passes through the station 42. The guide means 32 is arranged on a plane formed by a common generatrix of the cylindrical surface of the roller 12 and the conical surface 20 of the article 24. Therefore, foil 2
2 moves in the above plane toward the station 42. That is, it moves into the stamp gap formed by the common generatrix between the roller 12 and the conical article 22 in synchronization with the rotational movement of the article 24 transferring the decoration from the foil 22.

When the guide roller 32 is in a position parallel to the bus bar 26 on the guide means 36, the foil 22 is accurately fed to the stamp station 42 in a state perpendicular to the bus bar. Thus, the foil 22 is fed to the station 42 at various angles with respect to the busbar in response to the movement of the guide roller 32 along the guide means 36. This angle corresponds to each rotational angle position of the decorative article 24, that is, each portion when the conical surface 20 of the article 24 is expanded.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of the main parts of the device of the present invention.

FIG. 2 is a view of the stamp roller and the decorative article of the decoration device of the present invention viewed from the direction of arrow II in FIG. 1, schematically showing the driving means.

[Explanation of symbols]

 10 Decorative Device 12 Applicator Roller 14 Cylindrical Surface 16 First Driving Means 20 Cone Surface 22 Stamping Foil 24 Conical Article 26 Busbar 28 Third Driving Means 32 Direction Change Guide Roller 34 Second Driving Means 36 Bow-Shaped Guide Means 40 Curvature 42 Stamp Station 46 Electronic control means 48 Intersection point 50 Parallel part

Claims (6)

[Claims] 1. A step of unwinding a stamping foil in which a plurality of decorations are continuously arranged from a feed roll and supplying the stamping foil or applicator station for receiving a decorative article, wherein the stamp or applicator station has a cylindrical surface. Transferring the decoration from a foil to a conical surface of the article by a stamp or applicator roller drivable by a first driving means, guiding the foil to a direction changing guide roller, the direction changing guide The roller is interlocked with the feed roll, and is composed of a guiding step, which is arranged upstream of the station in the forward direction of the foil, and a step of sending the foil from the guide roller to the stamp station. The guide roller is a rotation angle position of the decorative article. Second driving means, each of which is moved to a suitable position, along at least a substantially arcuate guide arranged in the same plane as the common generatrix between the cylindrical surface of the stamp roller and the conical surface of the article. Is moved by
Here, the central portion of the curved surface of the bow-shaped guide is located on the common generatrix between the stamp roller and the article, and during the stamping operation, the article is driven by the corresponding third driving means. At least part of being driven, said stamp roller being separated from said first driving means for positioning said stamp roller prior to stamping operation and not being driven by said first driving means during stamping operation. A method of decorating an article having a conical surface by using a stamping foil. 2. A stamping foil feed roll means in which a plurality of decorations are continuously arranged, a stamp station for receiving a decorative article, wherein the stamp station comprises the article holding means and a stamp roller having a cylindrical surface. A stamping station comprising: a heating means for heating the stamping station; a first driving means for driving the stamping roller to the same position with respect to the foil in the station; and an upstream side of the station in a moving direction of the foil. A direction change guide roller disposed in the direction change guide roller, which is interlocked with the feed roll, and the guide to a position suitable for the rotation angle position of the article at the station. A moving means for moving the roller, said moving means The stamp roller is provided with at least a substantially arcuate guide arranged on the same plane as the common generatrix between the cylindrical surface of the stamp roller and the conical surface of the article, and the center of the curved surface of the guide means is the common mother line. Is located on a line, a part of the guide means is at least substantially parallel to the common generatrix, and the guide means extends from the parallel part toward the side farther from the intersection of the generatrix of the article. At least the moving means, the second driving means for moving the guide roller along the guide means, and the third driving means for driving the holding means for the article. A device for decorating an article having a conical surface by using a stamping foil. 3. The decoration device according to claim 2, wherein the center of the curved surface is located at an intermediate portion of the generatrix of the article. 4. The control means and the first driving means stops the driving of the stamp roller during the stamp operation,
At the same time, the second drive means moves the guide roller along the guide means, the third drive means drives the decorative article appropriately, and the stamp roller is driven only by frictional engagement. The decoration device according to claim 2, further comprising means for connecting first, second and third driving means to the control means. 5. The decoration device according to claim 2, wherein each of the driving means is equipped with an electric motor. 6. A stamping station for receiving a decorative article, the stamping station comprising a stamping roller having a cylindrical surface with which the decoration on the foil can be pressed against the conical surface of the article. First driving means for driving the stamp roller to position the stamp roller with respect to the decoration on the foil at the station, and upstream of the station in the direction of travel of the foil in the station direction A direction changing guide roller, and a moving means for moving the guide roller to a position suitable for a rotation angle position of the decorative article at the station, the moving means being a cylindrical surface of the stamp roller at the station. Same as the common generatrix between the conical surface of the article At least a generally arcuate guide means arranged in a plane, the center of the curved surface of the guide means being located on the common generatrix between the stamp roller and the article at the station, A part of the guide means is at least substantially parallel to the common generatrix, and the guide means is a moving means that extends from the parallel portion toward a side farther from the intersection of the generatrix of the article, Second drive means for moving the guide roller along the guide means, and third drive means for rotationally driving the article in the station and cooperating with the stamp roller to transfer the decoration from the foil to the article. And the first drive means positions the stamp roller to perform the stamping operation. Apparatus wherein during stamping operation decorated with the stamp roller frictionally engaging only driven it in a plurality of contiguous sequences articles having a conical surface at least a portion, characterized in that the stamping foil decoration.