JPH032063B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transfer device that continuously transfers a transfer foil onto the surface of a profiled material having complex irregularities, such as an aluminum sash.

Conventionally, as a device for transferring transfer foil onto the surface of irregularly shaped materials such as aluminum, synthetic resin, steel, or wood, which have complex irregularities, the transfer film is sequentially transferred using various rolls that correspond to the irregularities on the surface of the irregularly shaped material. It has been considered that the transfer film is bent and that the bending of the transfer film is divided into a plurality of steps for each uneven surface of the profiled material.

However, when attempting to transfer transfer foil onto the surface of a shaped material using such a device, a large number of rollers are required, the process is long, equipment costs are too high, the process is too complicated, and This exposes many drawbacks, such as incomplete transfer of the transfer foil at the corners of the unevenness.

The present invention provides an air vent in a female mold having an inner surface having the same shape as the outer shape of the irregularly shaped material, so that a transfer film can be closely attached to the inner surface of the female mold, and the irregularly shaped material is allowed to travel at a predetermined speed by passing through the inside of the female mold. The above-mentioned drawbacks are solved by providing a drive means and a take-up roll that winds up the transferred transfer film in synchronization with the running speed of the profiled material. This will be explained in detail.

FIG. 1 is a drawing of the copying process using the transfer device of the present invention. In the figure, 4 indicates a long profile material made of aluminum, synthetic resin, steel, or wood, etc., which has a complex uneven surface. It is fed by roller 5.

Reference numeral 6 denotes a preheating section for preheating the profiled material 4 to a temperature suitable for transfer, and normally heats the profiled material 4 to about 150.degree. However, if transfer is possible at room temperature, the preheating section 6 can be omitted.

Reference numeral 7 denotes a transfer film, which is formed by integrally providing a transfer foil having a desired shape, pattern, color, etc. on a film made of a desired material such as a waterproof paper sheet.

9 is a roller for feeding the transfer film 7.

11 is a transfer device which is the gist of the present invention which will be described later; 12 is an auxiliary transfer device which will be described later; 12 is for carrying out the transfer process of the portions where the transfer film 7 cannot be transferred to the profiled material 4 with air removal and reduced pressure; and 13 teeth,
A vacuum chamber surrounding the transfer device 11 and the auxiliary transfer device 12 is shown, 14 is a cutter for cutting the long profile material 4 to which the transfer foil has been transferred into a desired length, and 15 in FIG. , indicates a product that has been transferred with transfer foil.

The transfer device 11 is a deformed material 4 as shown in FIG.
It has an inner surface of the same shape as shown in Figure 3,
Moreover, the air reservoir chamber 16 and the air reservoir chamber 1 are located closer to the outer surface.
6, and a vacuum pump 19 that communicates with the air reservoir chamber 16.

The female mold 18 usually has a length of about 1 m, and its inner surface is treated with Teflon or the like to ensure good sliding with the transfer film 7.

The auxiliary transfer device 12 is used to transfer the folded portion 2 of the irregularly shaped material 4 as shown in FIG.
This is a device that presses the transfer film 7 onto the transfer film 7 using a roller 21 and transfers the transfer foil.

Moreover, 8' is a winding roll for winding up the transferred film 8.

The use of the transfer process having the above structure is as follows.

The transfer film 7 is guided into the female mold 18 by the rolls 9, 9 so that the surface of the transfer film 7 (the surface without the transfer foil) faces the inner surface of the female mold 18.

When the air in the air reservoir 16 of the female mold 18 is sucked by the vacuum pump 19, the transfer film 7 is attracted to the inner surface of the female mold 18 and brought into close contact with it.

On the other hand, the profiled material 4, which has been passed through a preheating chamber 6 and preheated to approximately 150°C in order to improve transferability, is placed in the female mold 1.
8, the outer shape of the profiled material 4 and the female mold 1
Since the inner surface of the mold 8 is formed so that the deformed material can be tightly fitted into it, the entire curved inner circumference of the transfer film 7 adsorbed to the inner surface of the female die 18 is strongly pressed against the outer surface of the deformed material 4, and the transfer foil is inserted into the deformed material. The image is transferred to the outer surface of the material 4.

Then, in synchronization with the moving speed of the profiled material 4, the transferred film 8 is wound onto the take-up roll 8' by the rollers 10, 10, so that the transfer foil is sequentially transferred onto the outer surface of the profiled material 4, and then sent to the process.

As described above, the transfer foil is transferred to the outer surface of the irregularly shaped material 4, but depending on its bent shape, the transfer foil is transferred to the three-dimensional folded portion 20 that cannot be transferred only by air removal and vacuum suction. Therefore, the image is sent to the auxiliary transfer device 12 and transferred.

In the auxiliary transfer device 12, the transfer film 7 is brought into strong pressure contact with the folded portion 20 by the roll 21, so that the transfer foil can also be transferred to the folded portion 20.

Thereafter, the shaped materials 4 that are sequentially fed out are cut into required lengths by the cutter 14.

The pressure reduction chamber 13 is depressurized from atmospheric pressure to prevent air bubbles from interposing between the transfer foil and the profiled material 4 and causing transfer defects during vacuum transfer processing and auxiliary transfer processing. Can be done.

Therefore, when transferring a transfer foil to a profiled material having a complicated curved surface, the transfer device is simplified by eliminating the need for a large number of roller devices that should be provided for each curved surface,
Not only can the line be shortened and equipment costs reduced, but it also eliminates the need for difficult work such as driving the roller device, controlling rotation, or completely degassing air bubbles, simplifying operations and increasing productivity. It has effects such as obtaining.

FIG. 4 is a longitudinal cross-sectional view showing another embodiment of the transfer device, and the difference from the transfer device shown in FIG. 23..., each plate material 2
The only difference is that urging means 24, 24, . . ., which constantly urges 3, 23, .

Therefore, even if there is a dimensional error in the irregular shaped material 4, each plate material 23, 23...
and the transfer film 7 adsorbed to the plate materials 23, 23, . . . can be strongly pressed against the outer surface of the profiled material 4,
When transferring the transfer foil, it is possible to maintain high product value by preventing air from intervening between the surface of the profiled material 4 and the transfer foil, partial peeling between the transfer foil and the profiled material 4, etc. It becomes possible.

FIG. 5 is a plan view showing still another embodiment of the transfer device, and FIGS. 6 to 9 are respectively -,
-, -, - sectional views, and the difference from the transfer device shown in FIG. This is the point.

This will be explained in detail below.

Inner wall 25 provided with air vent 17 of female mold 18
, four parts 26, 2 with different inner cross-sectional shapes
It consists of 7, 28, and 29.

The first portion 26 located at the feeding side end of the profiled material 4 has a flat upper surface so as to be in contact with only the central lower surface 30 of the profiled material 4, and is positioned directly opposite the central lower surface 30. An air vent 17 is provided only in the center of the transfer film 7, so that only the central portion of the transfer film 7 can be sucked (see FIG. 6).

The second portion 27 following the first portion 26 is:
The central lower surface 30 of the profiled member 4 and the central lower surface 30
It has a step-like inner surface so as to be in contact with the vertical surface 31 adjacent to the transfer film 7, and an air vent 17 is provided only at a position directly facing the vertical surface 31, so that the transfer film 7 is provided only at a portion slightly closer to the outer periphery than the center portion. can be adsorbed (see Figure 7).

The third portion 28 following the second portion 27 is:
It has a stepped inner surface so as to be in contact with the central lower surface 30 of the profiled member 4, the vertical surface 31, and the peripheral lower surface 32 adjacent to the vertical surface 31, and only at a position directly facing the peripheral peripheral lower surface 32. An air vent 17 is provided so that only a portion closer to the outer periphery of the transfer film 7 can be attracted (see FIG. 8).

The fourth portion 29 located at the feeding side end of the profiled member 4 is connected to the central lower surface 30 of the profiled member 4 and the vertical surface 3.
1, a lower surface 32 near the periphery, and an outermost vertical surface 33,
has an inner surface bent so as to be in contact with 34;
In addition, an air vent 17 is provided only at a position directly facing the outermost vertical surfaces 33 and 34, and the transfer film 7 is
Only the outermost periphery of the holder can be attracted (see Fig. 9).

Furthermore, the connections between the respective portions 26, 27, 28, and 29 are made by smooth inclined surfaces, etc., so as to prevent air from being drawn in during transfer of the transfer foil.

Therefore, by inserting the profiled material 4 through the female mold 18 that has attracted the transfer film 7, the profiled material 4 is first
The transfer film 7 is strongly pressed against the lower surface 30 of the center, and the transfer foil is transferred in this area.
Next, the transfer film 7 is strongly pressed against the vertical surface 31 of the profiled material 4, and the transfer foil is transferred on the vertical surface 31. Next, the transfer film 7 is strongly pressed against the lower surface 32 of the profiled material 4, which is closer to the periphery. Lower side 3
The transfer film 7 is transferred to the outermost vertical surfaces 33 and 34 of the profiled material 4.
are brought into strong pressure contact, and the transfer foil is transferred on the outermost vertical surfaces 33 and 34.

That is, in this case, since the transfer foil is transferred to the irregularly shaped material in order from the center of the transfer film, the transfer foil can be reliably transferred to the irregularly shaped material without getting air involved, and the product value can be maintained at a high level. Can be done.

In this embodiment, the inner wall 25 provided in the air vent 17 of the female mold 18 is composed of four parts, but it can be made up of five or more parts or three parts depending on the shape of the profiled material 4. It may be configured with the above parts.

As described above, the present invention not only simplifies the transfer device by eliminating the need for a large number of roller devices to be provided for each curved surface when transferring a transfer foil to a profiled material having a complicated curved surface, but also simplifies the transfer device. It is possible to simplify the operation of the device, and it also has unique effects such as preventing air bubbles from intervening between the transfer foil and the profiled material and preventing partial peeling of the transfer foil and the profiled material, thereby maintaining a high product value.

[Brief explanation of the drawing]

Fig. 1 is a vacuum transfer process diagram using the transfer device of the present invention, Fig. 2 is a vertical cross-sectional view showing the relationship between the auxiliary transfer device and the profiled material, and Fig. 3 is an embodiment of the transfer device of the present invention. FIG. 4 is a longitudinal sectional view showing another embodiment, FIG. 5 is a plan view showing another embodiment, and FIGS. −, −, −, − sectional view of figure 10
The figure is a perspective view showing a profiled material having a transferred pattern. 4...Deformed material, 7...Transfer film, 8'...
Winding roll, 11...Transfer device, 16...Air reservoir, 17...Air vent, 18...Female mold, 19...
...Vacuum pump, 22, 25...Inner wall, 23...
Plate material, 24...Biasing means, 26, 27, 28, 2
9... part.

Claims (1)

[Claims] 1. A vacuum pump is attached, and a large number of air escape holes are provided on the inner wall of the female mold, which allows the shaped material to be inserted tightly by making the inner surface shape the same as the outer surface shape of the shaped material. An air bleed is provided, and the air bleed is connected to the vacuum pump, and the long shaped material and the transfer film are installed in a depressurized chamber in which the transfer film is conveyed synchronously, and the shaped material is placed with the transfer film interposed therebetween. A transfer device for a long irregularly shaped material, which is continuously transferred onto the surface of the material by being tightly inserted through the material. 2. Claim 1, characterized in that the inner wall is made up of a plurality of divided plates, and is of a female type, and is provided with a biasing means that constantly biases each plate inward. Transfer device described in Section 1. 3. Claim 1, characterized in that the air bleed holes are set at the center of the inner wall at the end of the profiled material insertion side, and at the peripheral edge of the inner wall at the end of the profiled material delivery side. The transcription device described.