JPS59158260A - Vacuum transfer apparatus - Google Patents

Abstract

PURPOSE:To simplify a transfer apparatus and the operation thereof, by making it possible to allow a transfer film to closely contact with the inner surface of a female mold by providing a suction means to the female mold having an inner side surface of which the shape is same to the outer shape of a deformed member. CONSTITUTION:A transfer film 7 is guided into a male mold 18 by rolls 9, 9 so as to oppose the surface thereof to the inner side surface of the female mold 8 and the air chamber 16 of the female mold 18 is evacuated by a vacuum pump 19 to allow the transfer film 7 to closely contact with the inner side suface of the female mold 18. On the other hand, a deformed member 4 preheated to about 150 deg.C through a preheating chamber 6 is sent into the female mold 18 and the entire bent inner peripheral surface of the transfer film 7 sucked to the inner side surface of the female mold 18 is forcibly brought into contact with the outer surface of the deformed member 4 to transfer the transfer foil thereof to the outer surface of the deformed member 4. The film 8 after transfer is wound up by a wind-up roll 8'' through rollers 10, 10 in synchronous relation to the moving speed of the deformed member 4 and the transfer foil is successively transferred to the outer surface of the deformed member 4 which is, in turn, sent to the next process.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum 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 a shaped material with complex irregularities such as aluminum, synthetic resin, steel, or wood, the transfer film is sequentially bent by various rolls corresponding to the irregularities on the surface of the shaped material. Furthermore, it has been considered that the transfer film is bent in multiple 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.

In the present invention, a suction means is provided in a female die having an inner surface having the same shape as the outer shape of the profiled material, so that a transfer film can be brought into close contact with the inner surface of the female mold, and the profiled material is allowed to travel at a predetermined speed through the inside of the female mold. By providing a drive means and a take-up roll that winds up the transferred transfer film in synchronization with the traveling speed of the profiled material], the various drawbacks of the second part are solved. This will be explained in detail with reference to the drawings.

Fig. 1 is a vacuum transfer process diagram using the vacuum transfer device of the present invention, and (4) in the figure shows a long profiled material made of aluminum, synthetic resin, steel, or wood, etc., which has a complex uneven surface. , and are fed by a plurality of feed rollers (5).

(6) indicates a preheating section for preheating the profiled material (4) to a temperature suitable for transfer, and usually heats the profiled material (4) at about 150 DEG C'-1. However, if transfer can be performed at room temperature, the preheating section (6) can be omitted.

(7) is a transfer film, and a transfer foil having a desired shape, pattern, color, etc. is integrally provided on a film of a desired material such as dust or waterproof paper sheet.

(q> is a roller for feeding the transfer film (7).

01) is a vacuum transfer process which is the gist of the present invention which will be described later.
,=' :: indicates an auxiliary transfer device to be described later, which is used to perform the transfer process of parts that cannot be transferred blankly; Q3 indicates a vacuum chamber surrounding the vacuum transfer device 01) and the auxiliary transfer device α;
α 荀 indicates a cutter for cutting the long shaped material (4) to which the transfer foil has been transferred into a desired length, and 05) in FIG. 10 indicates a product to which the transfer foil has been transferred.

The vacuum transfer device (11) is used to transfer irregular shapes (as shown in Fig. 2).
4) has an inner surface of the same shape as shown in FIG. A female mold α8) having a vent Q71 and connected to the air reservoir chamber 0Q]
It consists of a vacuum pump (11).

The female mold Q8) usually has a length of 1777mm, and has an inner surface with a surface that allows for good sliding with the transfer film (7).
Apply Teflon treatment, etc.

The auxiliary transfer device α is a device that presses the transfer film (7) using a roller siri to transfer the transfer foil to the folded part of the irregularly shaped sill (4) shown in Fig. 2, which cannot be vacuum-transferred. be.

The item (8) I received is a winding roll that winds up the transferred film (8).

The operation of the vacuum transfer process that consists of the following is as follows.The surface of the transfer film (7) (the side without the transfer foil) is turned into a female mold (111il) using a 3° roll (9> (g)). Inner side] and A: Guide the transfer film (7) into the female mold α8) so that it is facing toward the other side.

When the air in the air reservoir of the female mold (18) is sucked by the vacuum pump, the transfer film (7) is attracted to the inner surface of the female mold (13) and is brought into close contact with the mold.

On the other hand, the profiled material (4), which has been passed through a preheating chamber (6) and preheated to approximately 150°C, is placed in the female mold (1) to improve transferability.
B) It is fed into the inside, but the outer shape of the profiled material (4) and the female mold 1
, 18) is formed so that the profile material (4) has a close contact with the inner surface of the profile material (4), so that the entire curved inner circumference of the transfer film (7) adsorbed to the inner surface of the female mold (18) is tightly aligned with the profile material (4). It is strongly pressed against the outer surface, and the transfer foil is transferred to the outer surface of the irregular shape (4).

Then, in synchronization with the moving speed of the irregularly shaped material (4), the transferred film (8) is wound onto the take-up roll (8) by the roller roller QQ, so that the transferred film (8) is sequentially transferred onto the outer surface of the irregular shaped material (4). The foil is transferred and sent to the next 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 (4) that cannot be transferred by vacuum suction alone. Therefore, it is sent to the auxiliary transfer device Q frame and transferred.

In the case of zero auxiliary transfer devices, the transfer film (7) is brought into strong pressure contact with the folded portion (a) by the roll Q1), and the transfer foil can also be transferred to the folded portion (a).

After that, the cutter (4) is sent out sequentially.
(14) Cut to the required length using K.

In addition, in the decompression chamber 0■, the pressure inside the room is reduced from atmospheric pressure,
During vacuum transfer processing and auxiliary transfer processing, transfer foil and profiled material (
4), it is possible to prevent air bubbles from intervening between the image forming apparatus and the image forming apparatus 4), thereby causing transfer defects.

Therefore, when transferring transfer foil to a profiled material having a complicated curved surface, it is possible to simplify the transfer device by eliminating the need for multiple roller devices to be provided for each curved surface, shorten the line, and reduce equipment costs. Not only that, it eliminates the need for difficult operations such as driving and controlling the rotation of the roller device or completely degassing air bubbles, thereby simplifying operations and increasing productivity.

FIG. 4 is a longitudinal cross-sectional view showing another embodiment of the vacuum transfer device, and the difference from the vacuum transfer device shown in FIG. It is composed of multiple mulberries Itari @ Ang... and the temporary form (c) of...
・A biasing means that always biases inward ■ (Incorporated)...
This is the only point where .

Therefore, even if there is a dimensional error in the irregularly shaped material (4), each plate material is damaged by A4 force means (to)... and plate fi: 3
The transfer film (7) adsorbed to (23＠-) can be strongly pressed onto the outer surface of the irregular shape tt (4), and when transferring the convex portion of the transfer 2, there is a space between the surface of the irregular shape tt (4) and the transfer foil. It is possible to prevent IL from occurring, such as the presence of air in the process and partial peeling between the transfer foil and the profiled material (4), thereby maintaining a high product value.

FIG. 5 is a plan view showing still another embodiment of the vacuum transfer device;
6 to 9 are Vl-Vl and Vl- of FIG. 5, respectively.
These are cross-sectional views of Vll, ■-5ill, and IX-IX, and the difference from the vacuum transfer device shown in FIG. 3 is that the transfer film (
7) Sequentially deformed members (4) from the center to the outer periphery.
The point is that the configuration is such that it can be brought into pressure contact with.

This will be explained in detail below.

The inner wall (c) of the female mold 08) provided with the air vent q is divided into four parts (c) (a) (a) (c) (4) with different inner cross-sectional shapes.
).

The first portion (a) located at the feeding side end of the profiled material (4) has a flat upper surface so that it can come into contact only with the central lower surface (g) of the profiled material (4), and An air release α force is provided only at a position 7j directly opposite to the central lower surface (to), so that only the central portion of the transfer film (7) can be attracted (see FIG. 6).

The second part (A) following the first part (4) is arranged so that it can contact the central lower surface (G) of the profiled member (4) and the vertical surface 61) adjacent to the central lower surface Q). It has a step-like inner surface, and an air vent 071 is provided only at a position directly facing the vertical surface (C), so that only a portion slightly closer to the outer periphery than the center portion of the transfer film (7) can be attracted ( See Figure 7]
.

The third part following the second part (a) is a profiled material (
4), the central lower surface (g), the vertical surface 6v, and the vertical surface 6
1), the transfer film (
7), it is possible to adsorb only the part closer to the outer periphery (No. 8).
(see figure).

The fourth portion located at the feeding side end of the profiled member (4) includes the central lower surface (7), the vertical surface 6]), the lower surface near the periphery (33), and the outermost vertical surface ( C) It has an inner surface bent so as to be in contact with (B), and an air vent Oη is provided only at a position directly facing the outermost vertical surface side (C). Only the outer peripheral edge can be adsorbed (see Fig. 9).

1. The connections between the respective parts (4) @ (c) are made with 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) into the female mold 08) that has adsorbed the transfer film (7), the profiled material (4) is first removed.
The transfer film (7) is applied with strong pressure to the central lower surface (7) of the profile material (4) to transfer the transfer foil in this area, and then the transfer film (7) is applied with strong pressure to the vertical surface q (υ) of the profiled material (4). After that, the transfer foil is transferred on the vertical plane Q31), and then the transfer film (7) is applied with strong pressure to the lower surface C3a near the periphery of the profiled material (4), and the transfer foil is transferred on the lower surface G near the periphery. is carried out, and finally the transfer film (7) is strongly pressed on the outermost vertical surface (C) (to) of the profiled material (4), and the transfer foil is transferred on the outermost vertical surface 63 (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 involving air, and the product value can be maintained at a high level. I can do it.

In this example, the inner wall (c) of the female die 08) provided with the air bleed α force is composed of four parts.
It may be composed of five or more parts or three or less parts depending on the shape of the irregularly shaped part (4).

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 enables easy operation of the transfer device. Moreover, it 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 vacuum transfer device of the present invention, Fig. 2 is a longitudinal sectional view showing the relationship between the auxiliary transfer device and the profiled material, and Fig. 3 is a diagram of the vacuum transfer device of the present invention. FIG. 4 is a vertical cross-sectional view showing an example at the same location, FIG. 5 is a plan view showing another example, and FIGS. 6 to 9 are respectively Vl-Vl, ■-■, Vll-Vllll, in FIG.
1X71X sectional view, and FIG. 10 is a perspective view showing a profiled material having a transferred pattern. 4... Deformed material, 7... Transfer film,
8... Winding roll, IT... Vacuum transfer device, 16... Air reservoir, 17... Air bleed! 2
．． 18...Female mold, 19...Vacuum pump, 22.25...Inner wall, 23...Plate material, 24...
...Biasing means, 26.27.28.29...part. Applicant: Toho Seisakusho Co., Ltd. Voluntary Procedural Amendment July 72, 1982 Director of the Patent Office Kazuo Wakasugi 1, s1 Cow Display 1988 Patent Application No. 32 Xl 98 2, Name of Invention Transfer Device 3 , Amendment and relation to the person's case Patent applicant Co., Ltd. Seishi Giken Co., Ltd. Toho Manufacturing Co., Ltd. 4, Agent 1 Office: Heiwa Building, 2-10 Hirano-cho, Higashi-ku, Osaka Name (6166) Patent attorney No. 1 Suzuki,゛Mi, ・1 □ Step 5, 1st request for amendment order Showa 6, Contents of the amendment As shown in the attached sheet 7, ``Title of the invention'' column of the specification to be amended, ``Scope of claims'' in the description Column 6, Contents of amendment 1. Correct the "title of the invention" in the specification to "transfer device." 2. Amend the "Claims" in the specification as shown in the attached sheet. 3. End of the second line of page 2 of the specification, page 3, line 5, end of line 5, line 19, page 4, line 2, line 7 of the specification
line, line 16, page 5, line 2, page 7, line 3
"Vacuum transfer device" in line 4, line 16, line 19, page 11, line 6, line 10, line 19, respectively. Corrected to ``transfer device.'' 4. Change "suction means" to "air bleed" on page 2, line 18.
I am corrected. 5. From the end of the bottom line on page 3 to the beginning of page 4, page 4, number 12
The "vacuum eaves" on the 1st line and the 16th line are each corrected to 1 air bleed and reduced pressure transfer. 6. "Vacuum suction" from the end of the second line to the beginning of the third line of the same page 6 is corrected to "air release vacuum suction J." 2. Scope of Claims 1. A suction means is attached, and the inner surface A female mold whose shape is the same as the outer surface shape of the irregularly shaped material allows the irregularly shaped material to be tightly inserted therein, and is set at a predetermined position on the machine base, and the inner wall of the female mold is used to adsorb the transfer film during transfer. A transfer device characterized in that a large number of air vents for escaping air present between the profiled material and the transfer film are bored and connected to the suction means. 2. A plurality of divided inner walls. 2. The transfer device according to claim 1, wherein the transfer device is composed of two plates and is of a female type, and is provided with a force means (=j) that constantly urges each plate inward. 3. The perforation position of the air vent is 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.
Transfer device described in Section 1.

Claims (1)

[Scope of Claims] 1. A female mold is installed at a predetermined position on the machine base, which is equipped with a suction means and whose inner surface shape is the same as the outer surface shape of the irregularly shaped material so that the irregularly shaped material can be inserted tightly therethrough. A vacuum transfer device characterized in that a number of air vents are provided at predetermined positions on the inner wall of the female mold to attract the transfer film and make it adhere to the inner surface, and the air vents are communicated with a suction means. Device. 2. Claim 1, characterized in that the inner wall is composed 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. Vacuum transfer device described in Section 1. 3. The perforation position of the air vent is 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. Vacuum transfer device described in Section 1.