JP3310139B2 - Film transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film transfer apparatus for transferring a transfer material pattern applied or printed on one side of a film to an object to be transferred.

[0002]

2. Description of the Related Art Conventionally, a high-speed and high-speed film transfer apparatus can be used on the inner surface of a glass container or on a glass plate.
There is a growing demand for high-accuracy transfer.

A conventional example of a film transfer device will be described with reference to FIGS.

4 and 5, reference numeral 31 denotes a work to be transferred, 32 denotes a work table on which the work 31 is placed, 33 denotes a transfer film, 34 denotes a take-up core for winding the transfer film 33, and 35 denotes a transfer film 33. Unwinding unwind core,
36 and 37 are guide rollers for guiding the transfer film 33 to the transfer position, and 38 is configured such that the outer circumference of the cylindrical portion has the same length as the transfer distance of the work 31 to be transferred. Transfer roller made of elastic material, 39
A pressurizing cylinder for pressing the transfer roller 38 onto the work 31 to be transferred via the transfer film 33; 40, a vertical guide mechanism for guiding the transfer roller 38 in the vertical direction;
Is a horizontal moving means for moving the vertical guide mechanism 40 in parallel with the work 31 to be transferred.

The operation of the conventional example will be described below with reference to FIGS.

First, in a pre-process, in order to improve the transferability of the transfer material pattern to the work 31, the work 31 is placed in a high-temperature bath and heated to a predetermined temperature. The heated work 31 is taken out of the high-temperature bath, carried to a film transfer device, placed on the work table 32 and positioned at a predetermined position.

Next, the winding core 34 is transferred to the transfer film 33.
Take up a certain amount. In this state, the horizontal moving means 41
The vertical movement mechanism 40 is positioned at the right end position in FIGS. 4 and 5, and the pressing cylinder 39 operates to transfer the transfer roller 38.
Is lowered, and the transfer film 33 is moved at a constant pressure to the work 31.
Press

Next, the horizontal moving means 41 operates to prevent the outer periphery of the transfer roller 38 from slipping when the transfer roller 38 is pressed, that is, the same movement as the rolling speed of the outer periphery of the transfer roller 38. The vertical movement mechanism 40 is moved from right to left at a speed.

When the transfer roller 38 moves by a predetermined amount, the horizontal moving means 41 stops, and the vertical moving mechanism 40 raises the transfer roller 38 to complete the film transfer.

[0010]

However, the configuration of the above conventional example has the following problems.

First, high precision cannot be obtained in positioning the transfer material pattern in the width direction of the film. This is because the application or printing position of the transfer material pattern on the film fluctuates due to the variation in the width of the film and the shift in the width direction during film running, and there is no countermeasure in the prior art.

Second, the work is heated and heated in the previous step for the purpose of improving the transferability. However, a cooling difference during the movement from the previous step is unavoidable, and a temperature difference is generated so that the work is uniform and good. Transfer is not possible.

[0013] Thirdly, there may be occurrence of wrinkles or wrinkles at the time of transfer, and the transfer quality is degraded.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a film transfer apparatus which is free from a decrease in transfer quality due to a shift in a transfer material pattern of a transfer film in a width direction, a variation in transferability, and a wrinkle of the transfer film.

[0015]

Means for Solving the Problems In order to solve the above-mentioned problems, the first invention of the present application comprises an unwinding shaft for unwinding a transfer film having a transfer material pattern applied or printed on one surface thereof, and a winding shaft for winding the transfer film. A take-up shaft, a guide roller for guiding the transfer film to a transfer position, and a substantially semicircular transfer roller for rolling the transfer film by a predetermined angle while transferring the transfer material pattern onto the work while pressing the transfer film against the work. If the reference of the transfer film the reference portion of the front Symbol transfer material pattern
A film reference portion detecting mechanism for detecting the position of the portion, and a film width direction position correcting means for correcting the position in the width direction of the transfer film based on the detected position information of the transfer material pattern. And

According to a second aspect of the present invention, there is provided a film transfer apparatus according to the first aspect of the present invention, wherein a film tension detecting means for detecting a tension of a transfer film between an unwinding shaft and a winding shaft; A tension adjusting mechanism for adjusting the tension of the transfer film based on the detected tension data.

The third aspect of the present invention is to solve the above problems, in the film transfer apparatus of the present first or second invention, by placing a pressurizing heat heating means work, the heated workpiece wherein A work table that moves from the heating means to the transfer position. According to a fourth aspect of the present invention, there is provided a film transfer apparatus according to the third aspect of the present invention, wherein a heater for heating a work is provided on a work table.
It is characterized by

[0018]

[Action] film transfer apparatus of the present first invention, a reference portion of the transfer material pattern of the transfer film coated or printed transfer material pattern on one surface and the position of the reference portion of the transfer film
The first feature is that a film reference portion detecting mechanism for detecting the transfer material pattern and a film width direction position correcting means for correcting the position in the width direction of the transfer film based on the detected position information of the transfer material pattern are provided . It is. In general, when a transfer material pattern is applied or printed on one surface of a film to manufacture a transfer film, it is not possible to eliminate slight meandering of the film from side to side. Therefore, in the film transfer device, the position of the transfer material pattern of the transfer film is accurately positioned with respect to the work even if the position in the width direction of the transfer film is positioned with reference to both side edges of the transfer film. do not become. However, as in the first invention of the present application, if the position of the transfer pattern on the transfer film is detected and the position in the width direction of the transfer film is corrected based on the detected position of the transfer pattern, the position of the transfer material pattern can be changed. The transfer film is accurately positioned with respect to the width direction, and as a second feature, rolls at a predetermined angle in this state.
It can be subjected to transfer by nearly semicircular transfer roller.

The film transfer apparatus according to the second aspect of the present invention has a film tension detecting means for detecting the tension of the transfer film between the unwinding shaft and the winding shaft in addition to the operation of the first invention of the present invention. Since there is provided a tension adjusting mechanism for adjusting the tension of the transfer film based on the tension data, the transfer film is free from tarls and wrinkles during transfer, and the transfer quality is improved.

A film transfer apparatus according to a third aspect of the present invention has a heating means for heating a work to a constant temperature and a heating means for placing the heated work on the heating means, in addition to the operation of the first or second invention. With a work table that moves to the transfer position, the temperature drop at each point of the work at the time of transfer is small, the temperature is uniform, and the transferability is uniform, so uniform and excellent transfer quality is obtained. Can be

[0021]

FIG. 1 shows an embodiment of a film transfer apparatus according to the present invention.
This will be described with reference to FIG.

1 to 3, reference numeral 1 denotes a work to be transferred with a film, 3 denotes a heating means for heating the work 1 from above, and 2 denotes a heater 4 for mounting the work 1 and maintaining the temperature of the work 1. And work table moving means 5
2 is a work table that reciprocates to the transfer position shown in FIG. 2, 6 is a winding shaft for winding the transfer film 15, and 7 a is a reference portion of the transfer material pattern 16 applied or printed on the transfer film 15. 3b is a film reference portion detecting mechanism for detecting as a portion, and a reference numeral 7b in FIG. 3 is used to correct the position of the transfer material pattern 16 based on the position of the reference portion of the transfer film 15 detected by the film reference portion detecting mechanism 7a. A film width direction position correcting means for correcting the width direction position of the film 15;
5, an unwinding shaft for unwinding 5, 14a and 14b guide rollers for the transfer film 15, 9 a film tension sensor attached to the guide roller 14a, 10 a substantially semicircular transfer roller, 11 a transfer film via the transfer roller 10 Fifteen
, A transfer cylinder for moving the transfer roller 10 in the vertical direction, and 13 for moving the transfer column 12 from right to left at the same moving speed as the rolling speed of the outer periphery of the transfer roller 10. the horizontal moving, also the <br/> horizontal moving means for returning.

The film width direction position correcting means 7b comprises:
As shown in FIG. 3, the machine frame 21 supporting the unwinding shaft 8, the transfer column 12, the winding shaft 6, the guide rollers 14a, 14b, etc. is moved on the guide 22 in the direction of the arrow in FIG. Although the position of the transfer film 15 can be corrected in the width direction, the transfer film 15 alone may be moved in the width direction.

The operation of this embodiment will be described below with reference to FIGS.

1 to 3, first, a work 1 is fixed on a work table 2 below a heating means 3, and is heated to a predetermined temperature by the heating means 3. The heater 4 prevents the work 1 from cooling during the operation of the next process.

In parallel with the above, the transfer film 15 is wound by the winding shaft 6 by a predetermined amount. At the time of this winding, the film tension detecting means 9 attached to the guide roller 14a detects the tension of the transfer film 15, and based on the detection data, the unwinding shaft 8 so that the tension of the transfer film 15 becomes constant. Of the transfer film 15 to prevent the transfer film 15 from wrinkling or wrinkling.

In parallel with the above, the film reference portion detection mechanism 7a detects the reference portion of the transfer material pattern 16 applied or printed on the transfer film 15, and as shown in FIG. The correcting means 7b moves the winding shaft 6, the unwinding shaft 8, the guide rollers 14a and 14b, and the film tension sensor 9 based on the detection data,
The position of the transfer material pattern 16 on the transfer film 15 in the width direction is corrected, and the position of the transfer material pattern 16 is changed to the work 1.
Position accurately with respect to.

Next, the work table moving means 5 moves the work 1 together with the work table 2 to the transfer position shown in FIG. As a result, the transfer material pattern 16 of the transfer film 15 whose tension has been adjusted and the position of which has been corrected, and the work 1 are accurately positioned.

Next, as shown in FIG.
Is lowered by the transfer column 12, and the pressure cylinder 11
, The transfer film 15 is pressed against the work 1 with a constant pressure.

Next, the transfer column 12 is
By means of 3, the transfer roller 11 is horizontally moved from right to left in the direction of arrow 17 at the same moving speed as the rolling speed of the outer periphery of the transfer roller 11, and is raised when the transfer roller 10 rotates by a predetermined angle and moves.

Next, the winding shaft 6 winds the transfer film 15 by a predetermined length to complete the transfer operation.

[0032]

The film transfer device of the first invention of the present application detects the reference portion of the transfer material pattern applied or printed on the transfer film as the reference portion of the film by the film reference portion detection mechanism, and based on the detected position. transfer by correcting the position in the width direction of the film, accurately correct the position in the width direction with respect to the workpiece of the rolling Utsushizai pattern Te, a predetermined angle
The roller is used for transfer by a substantially semi-circular transfer roller.
This has the effect of being able to

The film transfer apparatus of the second invention of the present application has the effect of improving the transfer quality because the transfer film tension can be adjusted in addition to the effects of the first invention of the present application, so that the transfer film does not have tarls or wrinkles. To play.

The film transfer apparatus of the third invention of the present application has a heating means for heating the work in addition to the effects of the first or second invention of the present application, so that the work temperature which determines the transferability becomes uniform, and the uniformity is excellent. This has the effect of obtaining high transfer quality.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of a film transfer device of the present invention.

FIG. 2 is a diagram showing the operation of the embodiment of the film transfer device of the present invention.

FIG. 3 is a diagram showing a configuration of a main part of an embodiment of the film transfer device of the present invention.

FIG. 4 is a diagram showing a configuration of a conventional example of a film transfer device.

FIG. 5 is a diagram showing the operation of a conventional example of a film transfer device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 work 2 work table 3 heating means 4 heater 5 work table moving means 6 winding shaft 7a film reference portion detecting mechanism 7b film width direction position correcting means 8 unwinding shaft 9 film tension detecting means 10 transfer roller 11 pressurizing cylinder 12 transfer Column 13 Horizontal moving means 14a, 14b Guide roller 15 Transfer film 16 Transfer material pattern

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B41F 16/00 B44C 1/17

Claims (4)

(57) [Claims] An unwinding shaft for unwinding a transfer film having a transfer material pattern applied or printed on one side thereof, a winding shaft for winding the transfer film, a guide roller for guiding the transfer film to a transfer position, the position of the reference portion of substantially the transfer roller semicircular, before Symbol transferring the reference portion of the transfer material pattern film to transfer the transfer film to the transfer material pattern by a predetermined angle rolls while pressing the workpiece to the workpiece
Film characterized the film reference portion detection mechanism for detecting, to have a film width direction position correction means for correcting the position in the width direction of the transfer film on the basis of the position information of the detected transfer material pattern as a Transfer device. 2. A film transfer apparatus according to claim 1, wherein said film transfer means detects a tension of a transfer film between an unwinding shaft and a winding shaft, and said transfer is performed based on the detected tension data. A film transfer device comprising: a tension adjusting mechanism for adjusting a tension of a film. 3. A film transfer apparatus according to claim 1 or 2, and a work table for moving a pressurizing heat heating means work, by placing the heated workpiece to a transfer position from said heating means A film transfer device characterized by the above-mentioned. (4) The film transfer device according to claim 3,
And a heater is provided on the work table to heat the work.
A film transfer device.