JPH0585655A - Method of transferring wide metal foil and device thereof - Google Patents

Abstract

PURPOSE:To transfer wide metal foil to a film or the like without its bending or deformation accurately by gradually opening right and left screens on which metal foil is put and thus transferring the foil on a surface for transfer. CONSTITUTION:A support plate 23 on which wide metal foil W is put is lowered onto right, left screens 6,8 and then the support plate 23 is returned back at low speed. Then, by rotating an upper guide roller 4, the metal foil W is held in between an upper screen 3 and the lower screens 6,8. A truck 24 on which is loaded with a thermal pressure attaching film 25 as a surface for placement is pulled laterally under a transfer device. Then, by opening gradually the lower right, left screens 6,8, the wide metal foil W is brought into contact with the surface 25 in its middle portion. Subsequently, the wide metal foil W is dropped from the middle toward the end portions, so that it is transferred to the surface 25.

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 transferring wide metal foil.

[0002]

2. Description of the Related Art Stainless foil with a plate thickness of 0.3 mm or less,
Copper foil, aluminum foil, etc. are collectively referred to as metal foil and are industrially used.

The above metal foil is subject to acid corrosion (etching), etc.
The pattern is formed with holes and is used as an interior decoration as it is or sandwiched with a transparent plate (acrylic plate, glass plate, etc.). With the diversification of applications, it is required to increase the size of metal foil, for example, 1000 mm × 100
So-called wide metal foils of 0 mm are being manufactured.

[0004]

Since the above wide metal foil has a plate thickness of 0.3 mm or less and a so-called weak rigidity, it may be locally deformed and creased during handling. On the other hand, when sandwiching a metal foil on which a pattern is formed by etching or the like with glass or the like, a step of transferring the metal foil to a thin film for thermocompression bonding the glass and the metal foil required for the sandwiching is required. Further, when the stacked metal foils are conveyed, a thin slip sheet is inserted so that the metal foils are not scratched and scratches are generated, but a step of transferring the metal foil to the thin slip sheet is also necessary.

Conventionally, an attachment plate method, a magnetic attraction method and a vacuum attraction method have been tried. That is, the attachment plate method is a method in which a metal foil is placed on a thin attachment plate, one end of the metal foil is applied to a predetermined film, and the attachment plate is gradually retracted to slide the metal foil onto the film. Although this attachment plate method is a simple method, a horizontal force acts on the metal foil as the attachment plate moves backward, and the metal foil is easily displaced laterally. If the film is thin and light, the film may be pulled and laterally displaced.

Further, the magnetic adsorption method cannot be used for non-magnetic metal foil such as austenite type stainless steel, and the vacuum adsorption method cannot be used for metal foil having a large opening ratio due to etching treatment.

Therefore, although the metal foil is manually handled and transferred through the jig, local bending is inevitable and the quality of the product is significantly impaired.

Therefore, an object of the present invention is to provide a transfer method and apparatus suitable for a wide metal foil.

[0009]

In order to achieve the above object, the present invention provides a lower left screen and a lower right screen for horizontally supporting the metal foil, and a left guide roller that rolls to wind the lower left screen. A wide metal foil, and a right guide roller that rolls to wind the lower right screen and a guide roller drive mechanism that separates or moves the left and right guide rollers from each other to open or close the lower left and right screens. Of the transfer device.

[0010]

[Function] Place a wide metal foil on the lower left and right screens that form a plane, and gradually open the lower left and right screens from the location corresponding to the center of the wide metal foil to open the center of the wide metal foil. First, it abuts on the transfer surface, and thereafter, the wide metal foil is dropped from the central portion to the end portion in order and transferred to the transfer surface.

[0011]

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of the reference numerals.

FIG. 1 is a plan view of a wide metal foil transfer device according to the present invention. The wide metal foil transfer device 1 is a rectangular frame 2 in plan view, and an upper part that is fully hung on the frame 2. The screen 3, the upper guide roller 4 for winding the upper screen 3, the upper guide roller drive mechanism 5, and FIG.
Lower left screen 6 shown in (bottom view of wide metal foil transfer device according to the present invention), same left guide roller 7, lower right screen 8 and same right guide roller 9, and lower left / right guide Guide roller drive mechanism 10, 1 for rotation of the rollers 7, 9
It consists of 1.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1, in which the upper screen 3 and the lower left and right screens 6 and 8 are substantially overlapped with each other, and a very thin metal foil can be sandwiched therebetween.

The upper screen 3 and the lower left and right screens 6 and 8 are preferably made of transparent film or sufficiently open nylon mesh.

The upper screen 3 and the lower left and right screens 6 and 8 are connected to the frame 2 via springs 13 ...
It is connected to the. These springs 13 ... Tension the screens 3, 6 and 8 appropriately and extend when the screens 3, 6 and 8 are excessively tensioned. Absorb.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 1, in which a frame 2 is provided with dovetail-shaped guide rails 15 and 1.
5 are formed and sliders 16 and 16 are attached to these guide rails 15 and 15, respectively.
The upper guide roller 4 is supported by 6 and 16, and the upper guide roller 4 is rotationally driven by a motor 18 with a speed reducer attached to one slider 16.

Self-propelled gears 19, 19 are keyed to the roller shafts 4a, 4b of the upper guide roller 4, and these gears 1
The racks 9 and 19 mesh with the racks 20 and 20 on the frame 2.

That is, in this embodiment, the motor 18 with a reduction gear is used.
The self-propelled gears 19 and 19 and the racks 20 and 20 constitute an upper guide roller drive mechanism 5.

Similarly, the lower left guide roller 7 slides while meshing with the guide rails 15 and 15.
And is driven by a motor 18 with a speed reducer. Self-propelled gears 19, 19 are keyed to the roller shafts 7a, 7b, and these gears 19, 19 are racks 20, 20.
Meshes with.

The lower guide roller driving mechanism 10 is also a motor 18 with a speed reducer, self-propelled gears 19 and 19 and racks 20 and 2.
It is composed of 0 and. Remaining guide roller drive mechanism 1
Since 1 has the same structure as the guide roller driving mechanism 10, its explanation is omitted.

The operation of the transfer device for the wide metal foil having the above structure will be described below.

FIGS. 5 (a) to 5 (d) are operation diagrams of the wide-width metal foil transfer device according to the present invention. FIG. 5 (a) shows that the upper guide roll 4 rolls (arrow) to move the upper part. The screen 3 is shown wound up, while the lower left and right screens 6,
8 is in a closed state.

Therefore, the wide metal foil W on the attachment plate 23 is lowered onto the left and right screens 6 and 8, and the attachment plate 23 moves backward (arrow) at a low speed to move the metal foil W to the left and right screens 6. , 8 down.

In FIG. 5B, the upper screen 3 is closed by rolling the upper guide roller 4 in the direction of the arrow.

With this, the metal foil W is sandwiched between the upper screen 3 and the lower left and right screens 6 and 8, and in this state, the frame 2 is held by the robot hand or a crane.
It is possible to move the robot horizontally to a desired position. Alternatively, for example, the dolly described below is used as the lateral movement means.

That is, as shown in FIG. 5C, the transfer device 1
The cart 24 is pulled laterally below. On the dolly 24, for example, a thermocompression-bonding resin film 25 as a transfer surface is placed. When the left / right guide rollers 7, 9 are rolled in the opening direction of the lower left / right screens 6, 8, the metal foil W is bent by its own weight, and its central portion Wc first comes into contact with the film 25.

Immediately before the contact, the left and right guide rollers 7 and 9 are stopped, and the film 2 is applied to the central portion Wc of the metal foil W or a mark.
If the carriage 24 is slightly moved to align 5 with each other, the film 25 and the metal foil W can be easily aligned with each other. After that, when the left and right guide rollers 7 and 9 are rolled in the opening direction in FIG. 5D, the metal foil W is gradually transferred onto the film 25.

Since the left and right guide rollers 7 and 9 move while winding the lower left and right screens 6 and 8, the lower left and right guide rollers 7 and 9 move.
The right screens 6 and 8 do not exert a horizontal force on the metal foil W. Therefore, the metal foil W is transferred without being laterally displaced and without causing harmful bending, and the film is not displaced or bent.

FIG. 6 is a diagram showing another embodiment of the transfer device of the present invention, in which the upper guide rollers 4 and 4 are two, and the upper screens 3 and 3 are two, and as a result, the upper and lower sides are symmetrical. is there.

In this case, the rotating shafts 26, 26 are attached to the frame 2.
If the frame 2 is attached, the frame 2 can be rotated, the metal foil W can be received on either side, and the metal foil W can be transferred onto the carriage 24 from either side, so that it can be used as a reversing machine.

5 (c) and 5 (d), both ends of the metal foil W are sandwiched between the upper screen 3 and the lower left / right screens 6 and 8 with an appropriate force to prevent slipping. .. However, the upper screen 3 may be omitted if a frictional force of a certain level or more is generated between the metal foil W and the lower left / right screens 6 and 8 and the metal foil W does not slip off.

[0033]

As described above, according to the present invention, the wide metal foil is placed on the lower left and right screens that are flush with each other, and the lower left and right screens are moved from the position corresponding to the center of the wide metal foil. Since the central part of the wide metal foil is gradually contacted with the transfer surface first by gradually opening it and then the wide metal foil is dropped from the central part to the end part in order and transferred to the transfer surface. It is possible to accurately transfer the metal foil onto a transfer surface such as a film without breaking or causing harmful deformation.

[Brief description of drawings]

FIG. 1 is a plan view of a transfer device for a wide metal foil according to the present invention.

FIG. 2 is a bottom view of a wide metal foil transfer device according to the present invention.

3 is a sectional view taken along line 3-3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is an operation diagram of a transfer device for a wide metal foil according to the present invention.

FIG. 6 is a diagram of another embodiment of the transfer device for the wide metal foil according to the present invention.

[Explanation of symbols]

1 ... Wide metal foil transfer device, 6 ... Lower left screen, 7
... left guide roller, 8 ... lower right screen, 9 ... right guide roller, 10, 11 ... guide roller drive mechanism, 25 ... transfer surface (film), W ... wide metal foil, Wc ... central part.

Front page continuation (72) Inventor Hiroaki Watanabe 2-12-1, Minatomachi, Joetsu City, Niigata Prefecture Japan Stainless Co., Ltd. Naoetsu Works

Claims (2)

[Claims] 1. A wide metal foil is placed on the lower left and right screens that form a plane, and the lower left and right screens are gradually opened from the location corresponding to the center of the wide metal foil, and the center of the wide metal foil is placed. A method for transferring a wide metal foil, characterized in that the portions are first brought into contact with the surface to be transferred, and thereafter the wide metal foil is dropped in order from the center to the end and transferred to the surface to be transferred. 2. A lower left screen and a lower right screen for horizontally supporting the metal foil, a left guide roller that rolls to wind the lower left screen, and a roll to wind the lower right screen. Right guide roller,
Wide metal foil transfer device consisting of a guide roller drive mechanism that separates or moves the left and right guide rollers to open or close the lower left and right screens.