JPH0952347A - Film transfer apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration in quality of transfer arising from slippage in the breadthwise direction of transfer material patterns on a transfer film. SOLUTION: This apparatus is equipped with an unwiding shaft 8 that unwinds a transfer film 15 having transfer patterns applied or printed on one side thereof, a take-up shaft 6 that winds up the transfer film 15, guide rollers 14a and 14b that guide the transfer film 15 to a transfer position, and a transfer roller 10 that moves in rotary motion for pressing the transfer film 15 against a work 1 and transfers transfer material patterns 16 onto the work 1. Furthermore, a film reference point detecting device 7a for detecting positions of the transfer material patterns 16 and a film position correcting device that corrects positions in the breadthwise direction for the transfer film 15, based on the detected information regarding the positions of the transfer material patterns, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film transfer device 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 In comparison with a conventionally used film transfer device, it is possible to perform high-speed operation on an inner surface of a glass container or a glass plate.
The demand for high-precision transfer is increasing.

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

In FIGS. 4 and 5, 31 is a work to be transferred, 32 is a work table on which the work 31 is placed, 33 is a transfer film, 34 is a winding core for winding the transfer film 33, and 35 is a transfer film 33. Unwinding core,
Reference numerals 36 and 37 are guide rollers for guiding the transfer film 33 to the transfer position, and 38 is configured so that the outer circumference of the cylindrical portion is the same as the transfer distance of the work 31 to be transferred, and the outer circumference is made of rubber or the like. Transfer roller made of elastic material, 39
Is a pressure cylinder that presses the transfer roller 38 against the work 31 to be transferred via the transfer film 33; 40 is a vertical guide mechanism that guides the transfer roller 38 in the vertical direction;
Is 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. 4 and 5.

First, in the previous step, in order to improve the transferability of the transfer material pattern onto the work 31, the work 31 is placed in a high temperature tank and heated to a predetermined temperature. The heated work 31 is taken out from the high temperature tank, conveyed to a film transfer device, placed on the work table 32, and positioned at a predetermined position.

Next, the winding core 34 is attached 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 pressure cylinder 39 operates to move the transfer roller 38.
To lower the transfer film 33 with a constant pressure to the work 31.
Press on.

Next, the horizontal moving means 41 operates to prevent the outer periphery of the transfer roller 38 from slipping in the pressed state, that is, the transfer roller 38 moves at the same rolling speed as 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 is stopped and the vertical moving mechanism 40 raises the transfer roller 38 to complete the film transfer.

[0010]

However, the above-mentioned conventional configuration 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 coating or printing position of the transfer material pattern on the film fluctuates due to the variation in the width of the film and the deviation in the width direction when the film is running, and there is no countermeasure against this in the prior art.

Secondly, although the work is heated and heated in the previous process for the purpose of improving the transferability, a cooling difference is inevitable during the movement from the previous process, and a temperature difference occurs, which is uniform and good. Can not be transferred.

Thirdly, the transfer quality may be deteriorated due to the occurrence of wrinkles and wrinkles during the transfer.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a film transfer device which is free from the deterioration of the transfer quality due to the deviation of the transfer material pattern of the transfer film in the width direction, the transfer property variation, the transfer film dulling, and the wrinkles.

[0015]

SUMMARY OF THE INVENTION In order to solve the above problems, the first invention of the present application winds the unwinding shaft for unwinding a transfer film having a transfer material pattern applied or printed on one surface thereof, and the transfer film. Film transfer including a take-up shaft, a guide roller that guides the transfer film to a transfer position, and a transfer roller that rolls while pressing the transfer film against a work to transfer the transfer material pattern to the work In the apparatus, a film reference portion detection mechanism that detects the position of the transfer material pattern, and a film width direction position correction unit that corrects the position of the transfer film in the width direction based on the detected position information of the transfer material pattern. And having.

In order to solve the above problems, the second invention of the present application is, in the film transfer apparatus of the first invention of the present application, a film tension detecting means for detecting the tension of the transfer film between the unwinding shaft and the winding shaft. A tension adjusting mechanism for adjusting the tension of the transfer film based on the detected tension data.

In order to solve the above problems, the third invention of the present application is, in the film transfer apparatus of the first or second invention of the present application, a heating means for heating a work to a constant temperature and a heated work is placed. And a work table that moves from the heating means to the transfer position.

[0018]

The film transfer apparatus according to the first aspect of the present invention includes a film reference portion detection mechanism for detecting the position of the transfer material pattern of the transfer film coated or printed with the transfer material pattern on one side, and the detected transfer material pattern. And a film width direction position correcting means for correcting the position of the transfer film in the width direction based on the position information. Generally, when a transfer material pattern is applied or printed on one surface of a film to manufacture the transfer film, it is impossible to prevent the film from meandering slightly to the left and right. Therefore,
In the film transfer device, even if the position in the width direction of the transfer film is positioned with reference to both side edges of the transfer film, the position of the transfer material pattern of the transfer film is not accurately positioned with respect to the work. . However, as in the first invention of the present application, if the position of the transfer pattern of the transfer film is detected and the position of the transfer film in the width direction is corrected based on the detected position of the transfer pattern,
The position of the transfer material pattern can be accurately positioned in the width direction of the transfer film.

The film transfer apparatus of the second invention of the present application has, in addition to the operation of the first invention of the present application, a film tension detecting means for detecting the tension of the transfer film between the winding shaft and the winding shaft, and the above-mentioned detection. Since there is a tension adjusting mechanism for adjusting the tension of the transfer film based on the tension data, the transfer film is free from the occurrence of wrinkles and wrinkles during transfer, and the transfer quality is improved.

In addition to the operation of the first or second invention of the present application, the film transfer apparatus of the third invention of the present application includes heating means for heating the work to a constant temperature, and placing the heated work on the heating means. Since it has a work table that moves to the transfer position, the temperature drop difference 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. To be

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the film transfer device of the present invention is shown in FIGS.
This will be described with reference to FIG.

1 to 3, 1 is a work to be film-transferred, 3 is a heating means for heating the work 1 from above, 2 is a heater 4 on which the work 1 is placed and the temperature of the work 1 is maintained. And the 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 7a is a reference part of the transfer material pattern 16 applied or printed on the transfer film 15 and a reference part of the film 15. The film reference portion detecting mechanism 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 film 15 detected by the film reference portion detecting mechanism 7a. The film width direction position correcting means for correcting the position of the transfer film 15 in the width direction, the unwinding shaft 8 for unwinding the transfer film 15, 14a and 14b are guide rollers of the transfer film 15, and 9 is the film tension sensor attached to the guide roller 14a. 10 is a transfer roller, 11 is a pressure cylinder for pressing the transfer roller 10 against the transfer film 15, and 12 is a transfer cylinder. A transfer column for moving the transfer roller 11 in the vertical direction, 13 is a horizontal moving means for moving the transfer column 12 horizontally 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. Is.

The film width direction position correcting means 7b is
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 in the direction of the arrow in FIG. Although the position of 15 in the width direction can be corrected, only the transfer film 15 may be moved in the width direction.

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

1 to 3, first, the work 1 is fixed on the work table 2 below the 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 work 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 this detection data, the tension of the transfer film 15 becomes constant, and the unwinding shaft 8 is used. Brake is controlled to prevent the occurrence of wrinkles and wrinkles on the transfer film 15.

Further, 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 correction unit 7b moves the winding shaft 6, the winding 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 in the width direction on the transfer film 15 is corrected, and the position of the transfer material pattern 16 is set 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 whose position has been corrected and the work 1 are accurately positioned.

Next, as shown in FIG. 2, the transfer roller 10
Is lowered by the transfer column 12, and the pressure cylinder 11
Then, the transfer film 15 is pressed against the work 1 with a constant pressure.

Next, the transfer column 12 is moved horizontally to the horizontal moving means 1.
3 horizontally moves in the direction of arrow 17 from right to left at the same moving speed as the rolling speed of the outer circumference of the transfer roller 11, and rises when the transfer roller 10 rotates and moves by a predetermined angle.

Next, the winding shaft 6 winds the transfer film 15 for 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 this detection position. By correcting the position of the transfer film in the width direction, the position of the transfer material pattern in the width direction with respect to the work, which cannot be corrected by the conventional technique, can be corrected.

In addition to the effect of the first invention of the present application, the film transfer apparatus of the second invention of the present application can adjust the tension of the transfer film, so that the generation of the wrinkles and wrinkles of the transfer film is eliminated and the transfer quality is improved. Play.

In addition to the effect of the first or second invention of the present application, the film transfer apparatus of the third invention of the present application has a heating means for heating the work, so that the temperature of the work which determines the transferability becomes uniform, and is uniform and excellent. The effect is that excellent transfer quality can be obtained.

[Brief description of 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 an operation of an 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 a 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 an operation of a conventional example of a film transfer device.

[Explanation of symbols]

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

Claims (3)

[Claims] 1. An unwinding shaft for unwinding a transfer film having a transfer material pattern applied or printed on one surface thereof, a winding shaft for winding up the transfer film, and a guide roller for guiding the transfer film to a transfer position. In a film transfer device including a transfer roller that rolls the transfer film while pressing the transfer film onto the work to transfer the transfer material pattern to the work, a film reference portion detection mechanism that detects the position of the transfer material pattern, A film width direction position correction means for correcting the width direction position of the transfer film based on the detected position information of the transfer material pattern. 2. The film transfer apparatus according to claim 1, wherein the film tension detecting means detects the tension of the transfer film between the unwinding shaft and the winding shaft, and the transfer based on the detected tension data. A film transfer device comprising: a tension adjusting mechanism for adjusting the tension of the film. 3. The film transfer apparatus according to claim 1, further comprising: heating means for heating the work to a constant temperature; and a work table for placing the heated work and moving it from the heating means to a transfer position. A film transfer device comprising: