JPS6324480B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for closely adhering a transfer thin film to the surface of a long material such as an extruded aluminum alloy material.

Conventionally, in forming various patterns on the surface of a long material having a complicated cross-sectional shape, a transfer means using hydraulic pressure has been proposed. This hydraulic pressure application involves floating a thin film printed with an arbitrary pattern using ink or resist material on the liquid surface with the printed side facing up, then pressing a long material against the printed surface and submerging it into the liquid. This is a method in which a printed pattern is transferred by applying pressure to bring a thin film into close contact with the surface of a long material.

However, in this case, the thin film floating on the liquid surface tends to dissolve and disappear over time, so there is a difference in the state of the thin film between the part that came into contact with the liquid first and the part that came into contact with the liquid later. This results in a difference in the transferability of the printed pattern. Therefore, when a long material is pressed, it is difficult to uniformly and reliably transfer ink, paint, etc. printed onto the thin film over the longitudinal direction of the material. (See Figure 8) Therefore, the present invention aims to eliminate the above-mentioned drawbacks, and when submerging a long material into a liquid, the thin film is first supplied to the liquid surface, and then the thin film is supplied to the liquid surface from behind. The purpose of this method is to apply a uniform thin film to the entire surface of the elongated material, particularly in the longitudinal direction, by pressing it onto the surface of the elongated material.

This will be explained with reference to an embodiment shown in the drawings. Fig. 1 shows an outline of the process of carrying out the invention, in which A is a transfer tank, and this transfer tank A has a development zone 1 and a long strip for spreading a thin film for transfer. It has a continuous transfer zone 2 on which the material is pressed. A thin film 11 is supplied to the developing zone 1 from a thin film supply device B, such as a roll coater, provided near the transfer tank A.
A pattern is printed on this thin film 11 using ink, or a resist material that inhibits electrolytic treatment in a subsequent process is printed in a pattern.

In this transfer tank A, special measures have been taken to spread the liquid on the liquid surface. That is, roll coater B
As shown in FIGS. 10 and 11, the thin film 11 supplied from a rod-shaped thin film guide body 41 moves on the liquid surface of the transfer tank A from the development zone 1 to the transfer zone 2.
By this, the thin film 11 is pulled out and floated on the liquid surface, and by blowing air from above onto the thin film 11 floating on the liquid surface, the thin film 11 is spread uniformly without wrinkles.

The rod-shaped thin film guide body 41 is connected to a pair of chain conveyors 40, 40 that circulate inside the transfer tank A, and the tip edge of the thin film 11 that is supplied from the roll coater B to the thin film guide body 41 and hangs down. is starting to adhere. Then, as the chain conveyor 40 moves, the thin film is drawn out and conveyed to the transfer zone 2. At this time, in order to easily and reliably move the thin film 11,
The liquid may flow from the development zone 1 toward the transfer zone 2. This flow circulates the liquid overflowing from the side wall of transfer zone 2 and
It can be made by ejecting it from the side wall of the

In addition, 42 in FIG. 11 is a blower for blowing out an air flow, and an appropriate number of blowers are installed above the liquid level.

In this way, when pressing the elongated material against the thin film 11 that has been pulled out and developed on the liquid surface, the third
A lifting device C as shown in FIG. 4 and FIG. 4 is used.

The raising and lowering device C is provided on the opposite side of the roll coater B across the transfer tank A, near the running rail a that conveys the hanging frame 26 holding the long material 31, and when the lifting frame is raised, 26 can be delivered to and from the traveling rail a, and the two pillars 12 are pivoted so as to be rotatable by hydraulic cylinders about the shaft 24 at the base, and
It consists of an elevating body 13 that spans over a book pillar 12 and can be raised and lowered by rollers 18 along the pillar 12. A transfer frame 14 is provided on the folding side of the elevating body 13 and faces parallel thereto, each of the upper and lower frames is fixed to the frame of the elevating body 13 by a cylinder 16, and a guide provided on the elevating body 13 is provided. body 21
A guide rod 20 is inserted into the transfer frame 14, and the guide rod 20 is fixed to the transfer frame 14. For this reason, as the cylinder 16 expands and contracts, the transfer frame 14 is reliably guided by the guide rod 20 and the guide body 21, so that it can approach and leave in a state substantially parallel to the plane formed by the elevating body 13. An auxiliary frame 15 is installed on the opposite side of the transfer frame 14 from the elevating body 13, and the upper part of this frame 15 is connected to the transfer frame 14 by a shaft 23.
A cylinder 17 is supported below the transfer frame 14.
Fix the ends of the The auxiliary frame 15 is raised and lowered as the transfer frame 14 and the pillar 12 are raised and lowered, and is moved together with the transfer frame 14 by the expansion and contraction of the cylinder 16.
By expanding and contracting the lower cylinder 17, the entire auxiliary frame 15 can further rotate around the shaft 23.
(The lower part protrudes.) Support arms 19, 19 protrude above and below the auxiliary frame 15, and are provided with locking portions 25, 25, which are locked with hook portions 27, 27 of the suspension frame 26, respectively. do. This suspension frame 26 is transported by being hooked to a trolley (not shown) running along the running rail 9 with its hook portion 28, but the auxiliary frame 1 of the lifting device C in an upright state
When the suspension frame 26 stops while being positioned on the locking portion 25 of the suspension frame 26, the elevating body 13 rises along the pillar 12, and the hooking portion 27 of the suspension frame 26 and the locking portion 25 of the auxiliary frame 15 are connected to each other. The hooks 28 of the suspension frame 26 are engaged with the trolleys supported by the running rails 9, and the lifting device C is rotated to a state where it can be lowered. .

Grips 29 and 30 are provided on the upper and lower sides of the suspension frame 26, respectively, on the opposite side of the hook portion 27, and a processing object holding bar 32 is provided on each of these, and a processing object holding bar 32 is provided on the processing object holding bar 32, respectively. Each is held.
As shown in FIG. 6, this holding bar 32 has a fitting groove 33 that locks the hook portions of hangers 37 attached above and below the long material 31. The pair of opposing fitting grooves 33, 3 are provided opposite to the side edges over the direction.
The hanger 37 of one of the elongated materials 31 of 3 is locked.

When the long material has a non-circular cross-section (including those with a complicated cross-sectional shape used for a sash frame, etc., as shown in FIG. 12), the pair of fitting grooves 33 may
As shown in the figure, it is carved at a certain angle on the longitudinal side edge. In addition, in the case of a circular cross section, the eighth
Since the state as shown in the figure is not achieved, the pair of fitting grooves 33 are formed at right angles to the side edges as shown in FIG.

A pair of fitting grooves 33, 3 inclined at the above-mentioned certain angle
The elongated material 31 that is fixed to the holder 3 will be inclined with respect to the liquid level 36 according to the angle, so the cross-sectional shape of the elongated material 31 should be adjusted in advance so that the corner part is upward. If the inclination angle of the matching groove 33 is determined, the elongated material 31 can be immersed in the liquid with the corner portion facing up simply by attaching the elongated material 31 to the holding bar 32 via the hanger 37.

For example, in the case of a U-shaped cross-sectional shape as shown in FIG. 13, the term "corner part" as used herein refers not only to the corner part (R) but also to the tip protruding part (C).

Note that the gripping bodies 39 and 30 engage with grooves 34 provided on the side edges of the holding bar 32 to prevent lateral movement.

In addition, to attach the long material to the hanging frame 26, the upper and lower ends of the long material 31 are attached to the gripper 2 via the hanger 37.
9 and 30. At this time, in particular, since the lower grip body 30 is designed to be able to slide in the vertical direction, the vertical position can be adjusted depending on the length of the elongated material 31 to loosen it. It can be installed with enough tension to match its length so that there is no damage. For a long material with a non-circular cross section, the holding bar 32 formed as a pair of inclined fitting grooves shown in FIG. 6 is used as described above.

Such work for attaching and removing elongated materials is performed at the work station 8.

Now, the hoisting frame body C, which is now in a state where it can be lodged, is
With the elevating body 13 in the raised position, the column 12 is rotated about the shaft 24 by the operation of the hydraulic cylinder and is lowered onto the transfer tank A. The hanging frame 26 also lies down together with the auxiliary frame 15, and the elongated member 31 attached in front thereof faces the transfer thin film 11 floating on the liquid surface 36. At that time, the lower cylinder 27
expands, rotates the auxiliary frame 15 around the shaft 23, tilts the lower part of the elongated material 31, and causes a difference in the distance between the liquid levels at the ends of the elongated material. In other words, the distance between the liquid surface between the part of the thin film that is supplied to the liquid surface first and the opposite end of the long material is small, and the distance between the liquid surface of the part that is supplied after the thin film and the opposite end of the long material is small. The length of the long material is large, and there is a difference in the time it takes for both ends of the long material to sink into the liquid. Then, due to the extension of the cylinder 16, the transfer frame 14 is lowered toward the thin film 11 on the liquid surface with the auxiliary frame 15 kept tilted as shown in FIG. The length of the material is thin film 1 in order from the lower part of the slope.
Press 1 to immerse into the liquid. At this time, the air bubbles generated between the long material and the thin film escape upwards (i.e., to the liquid surface) along the inclined surface of the long material, so that
The thin film adheres closely to the surface of the long material without the presence of air bubbles.

Here, in the case of the long material 31 with a non-circular cross section,
As described above, since the holding bar 32 is used to hold the holding bar 32, the holding bar 32 is used to insert the holding bar 32 in an inclined state with the corner portion facing upward, so that the thin film can be adhered to the entire surface of the holding bar 32, as shown in FIG.

At the end of this transfer, the raising/lowering device C starts standing up, the lower cylinder 17 shortens and returns to its initial state, and the cylinder 16 also returns to its original position. When the lifting device C is in the upright state, the lifting body 13 descends along the pillar 12, and the hook portion 28
is locked to the trolley on the traveling rail 9, and at the same time, the engagement of the hooking portion 27 and the locking portion 25 is released.

The suspension frame 26 that has left the lifting device C is washed with water in step 4.
There, the transferred thin film is removed by a jet shower, and then transported to a drying step 5.

In this embodiment, after the lifting device C is brought down, the cylinder 27 is extended to tilt the suspension frame 26, but the order of operation is not limited to this, and the suspension frame 26 is tilted first. After that, the raising device C may be lowered.

In this way, the long material 31 is tilted by tilting the hanging frame 26 that has been conveyed in a vertical state, and air bubbles are released. This is because if the product is transported in the same state, the volume during movement will be larger than if it is transported in the vertical state, and as a result, the washing device and drying device will also become larger, increasing the factory space and cost.

As described above, in bringing the pattern on the thin film that is continuously supplied to the liquid surface into close contact with the surface of the elongated material, the present invention is capable of applying the pattern on the thin film that is continuously supplied to the liquid surface to the surface of the long material. Since the long material is submerged in the liquid with a difference in the distance between the liquid levels at both longitudinal ends of the long material in response to the difference in the melting state between This enables the thin film to adhere evenly, and as a result, the printing ink or paint on the thin film can be transferred reliably and uniformly.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the entire process including the transfer method of the present invention, FIG. 2 is a front view of a lifting device for carrying out the method of the present invention, and FIGS. 3 and 4 are side views thereof. Fig. 5 is an enlarged view of the suspension frame, Figs. 6 and 7 are views showing the holding bar and its deformation, and Figs.
Fig. 9 is a diagram illustrating the state of contact with the thin film surface of the long material, Fig. 10 is a perspective view of the transfer tank showing the developed state of the thin film, Fig. 11 is also a longitudinal sectional view, and Figs. 12 and 13 are A cross section of a long piece of material is shown. A... Transfer tank, B... Roll coater, C... Lifting device, 1... Thin film development zone, 2... Transfer zone, 4-
8...Each processing section, 9...Traveling rail, 11...Thin film, 1
2... Pillar of lifting device, 13... Lifting body, 14... Transfer frame, 15... Auxiliary frame, 26... Hanging frame, 31... Long material, 32... Holding bar.

Claims (1)

[Claims] 1. A thin transfer film with a pattern printed on the top surface is continuously supplied to the liquid surface from one end and floated, and the distance between the part first supplied to the liquid surface and one end in the longitudinal direction of the long material is The feature is that the distance between the part that is later supplied to the liquid surface and the other end of the long material is increased, and in this state, the long material is submerged in the liquid while being pressed against the thin film. A method of applying a thin transfer film to the surface of a long material.