JP2002160712A - Device and method for transferring coating to metallic material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for transferring a coating to a metallic material, which enables the coating to be advantageously transferred to the surface of the metallic material such as an aluminum section. SOLUTION: A transfer film 1, where the coating 4 is applied to a release film 2, is let out from a feed reel 35 to undergo thermocompression bonding to the surface of the metallic material 10, which is preheated in a preheating part 23, by a thermocompression-bonding roller 26. The metallic material 10 is conveyed below a transfer unit 20 by a carrier roller 11. The coating 4 is transferred to the surface of the metallic material 10. The release film 2 is peeled from the surface of the metallic material 10 by a release roller 34 so as to be wound on a take-up reel 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint transfer apparatus and a paint transfer method for transferring a paint to a metal material such as an aluminum profile.

[0002]

2. Description of the Related Art Metal materials such as aluminum shapes are widely used for building materials for houses, furniture, road guide plates, outer plates of small boats, and the like.

Conventionally, as a method of applying a metal material, a method of applying a colored paint, a plating method, a method of attaching a colored laminated film to the surface of the metal material with an adhesive, and the like have been implemented.

[0004]

However, the method of applying a colored paint tends to cause color unevenness, and it is difficult to form a complicated pattern. In addition, the plating method is inferior in design because only a single color can be formed, and requires a cost for drainage treatment. The method of attaching a colored laminate film has a problem in recycling. That is, when recycling the metal material to which the laminated film is attached, the laminated film must be peeled off from the surface of the metal material. However, it is difficult to completely peel off the laminated film from the surface of the metal material. Requires much labor and cost.

Accordingly, an object of the present invention is to provide a paint transfer apparatus and a paint transfer method for transferring a paint to a metal material, which can advantageously transfer the paint to the surface of a metal material such as an aluminum plate.

[0006]

According to the present invention, there is provided an apparatus for transferring paint to a metal material, wherein a transfer film having a paint applied to the surface of a release film is used as a colored carrier for transferring the paint to the surface of the metal material. And a supply section for the transfer film, and a thermocompression roller for thermocompression bonding the transfer film supplied from the supply section to the surface of the metal material and transferring the paint to the surface,
A peeling unit that peels the peeling film from the surface of the metal material, a collecting unit that collects the peeled peeling film, and a moving unit that relatively moves the metal material with respect to the thermocompression roller and the peeling unit. It is a thing.

Preferably, a preheating section for preheating the metal material is provided upstream of the thermocompression bonding roller. Desirably, a cooling unit is provided between the thermocompression roller and the peeling unit for cooling the transfer film attached to the surface of the metal material. Desirably, after the paint is transferred to the surface of the metal material, a protective paint is applied to the surface of the transferred paint.

In the above configuration, the transfer film supplied from the supply unit is thermocompression-bonded to the surface of the metal material by the thermocompression roller, and the paint is transferred to the surface of the metal material. in this case,
Preferably, the metal material is pre-heated by the preheating unit so that the paint is easily transferred to the surface of the metal material. Next, the release film is released from the surface of the metal material by the release section.
In this case, desirably, the transfer film is cooled by the cooling unit so that the release film is easily peeled. More preferably, a protective paint is applied to the surface of the paint transferred to the surface of the metal material.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view of an apparatus for transferring a paint to a metal material, FIG.
3 is a cross-sectional view of a transfer film, FIG. 4 is a front view of a thermocompression roller, FIG. 5 is a side view of a main part of a paint transfer device to a metal material, FIG. 6 is a side view of the thermocompression roller, and FIG. FIG.

In FIG. 1, a metal material 10 is transported to the left by a transport roller 11 as transport means (see arrow A). A large number of transport rollers 11 are horizontally arranged and driven by a chain 12 or a belt. Metal material 10
Is a long aluminum profile. FIG.
0 shows a transfer film adhered to the surface of No. 0. The transfer film 1 is configured by laminating a release film 3, a paint layer 4, and an adhesive layer 5 on the surface of a release film 2. The release film 2 is a transparent synthetic resin film. Paint layer 4
, A desired pattern such as a grain pattern or a marble pattern is formed.

In FIG. 1, a transfer unit 20 is provided above the transport roller 11. That is, the transport roller 11 is a moving unit that moves the metal material 10 with respect to the transfer unit 20. An adhesive applicator 14 is provided upstream of the transport roller 11, and is provided with a metal material 10.
Before bonding the transfer film 1 to the metal material 10, a thin adhesive is applied to the surface of the metal material 10. This adhesive material is for compensating for insufficient adhesive strength of the adhesive layer 5. Hereinafter, the transfer unit 20 will be described. A sensor 22 is provided at the tip of the horizontal frame 21. The sensor 22 detects the metal material 10 transported by the transport roller 11. A preheating unit 23 is provided behind the sensor 22. The preheating unit 23 is configured by housing a heater 25 in a case 24 and preheats the metal material 10 on the transport roller 11.

In FIGS. 1 and 2, a thermocompression roller 26 is provided substantially at the lower center of the frame 21. A plurality of thermocompression rollers 26 may be provided. The preheating unit 23
It is provided upstream of the thermocompression bonding roller 26. The thermocompression roller 26 is made of a material having elasticity such as silicon rubber and having high heat resistance. The thermocompression roller 26 is housed in a case 27. The case 27 has a heater 28
The thermocompression roller 26 is heated by a heater 28 to about 150 ° C. to 200 ° C. In FIG. 4, reference numeral 29 denotes a bearing of the thermocompression bonding roller 26, and reference numeral 13 denotes a bearing of the transport roller 11.

Behind the thermocompression roller 26, a cooling section 30 composed of a nozzle is provided. A blower 31 is provided on the frame 21. The blower 31 has a pipe 32
Cool air is sent to the cooling unit 30 via the The cooling unit 30 blows cold air to the metal material 10 to cool the transfer film 1 attached to the metal material 10.

A guide roller 33 is provided in front of the thermocompression roller 26, and a peeling roller 34 is provided in the rear. The cooling unit 30 is provided between the thermocompression roller 26 and the peeling roller 34. A supply reel 35 is provided on a front upper surface of the frame 21. A take-up reel 36 is provided on the rear upper surface of the frame 21. The transfer film 1 is wound around the supply reel 35. Transfer film 1 unreeled from supply reel 35
Travels along the guide roller 33 and the thermocompression roller 26. The peeling film 2 is peeled from the surface of the metal material 10 while rotating around the peeling roller 34,
It is wound up. A preheating unit 37 that blows out hot air is provided between the supply reel 35 and the guide roller 33. When the transfer film 1 is preheated by the preheating unit 37, the transfer film 1 is easily attached to the metal material 10. As described above, the transfer unit 20 includes the sensor 22, the preheating unit 23,
The thermocompression roller 26, the cooling unit 30, the guide roller 33, the peeling roller 34, the preheating unit 37, and the like are integrally attached to the frame 21.

In FIG. 1, a frame 21 is a cylinder 4
0 rod 41. When the rod 41 of the cylinder 40 projects, the frame 21 descends and the rod 4
When 1 is retracted, the frame 21 rises. That is, the cylinder 40 is a vertical movement unit that moves the thermal transfer unit 20 up and down relatively to the metal material 10.

1 and 5, behind the thermal transfer unit 20, a laser unit 50, an imaging device 51 such as a CCD camera or a line image sensor, a bad mark marker 52, a protective paint application section 53, a drying oven 5
4 are arranged side by side in order. The laser unit 50 measures the height of the surface of the metal material 10 by irradiating the surface of the metal material 10 with the laser light L and receiving the reflected light. As shown in FIG. 5, the paint 4 is not correctly transferred to the surface of the metal material 10, and bubbles 60 are generated inside the paint, and the paint 4
If is floating, this floating is detected.

The camera 51 picks up an image of the surface of the metal material 10 and detects a chip 61 in the paint 4. Laser unit 50
Or when a transfer failure is detected by the imaging device 51,
Desirably, the operator is notified to that effect by a notification means such as a buzzer or a warning light. The marker 52 is a stamp pin, and stamps a bad mark at or near a transfer failure. The operator can easily confirm a defective portion by visually recognizing the bad mark.

The coating section 53 jets a protective coating 6 such as a transparent resin from the nozzle 53 a and applies the coating to the surface of the coating 4. The drying furnace 54 is for drying and curing the paint 6 and includes a heater 55 and a fan 56. In addition, as a protective coating, a photocurable resin such as an ultraviolet curable resin can be used. In this case, a light irradiator for curing the photocurable resin is provided instead of the drying furnace 54.

The apparatus for transferring a paint to a metal material has the above-described configuration, and the operation will be described next. In FIG. 1, the rod 41 of the cylinder 40 is initially retracted, and the transfer unit 20 is retracted upward. The metal material 10 is transported on the transport roller 11 toward the transfer unit 20, and the adhesive is applied by an adhesive applicator 14. Sensor 2
When the metal member 10 detects the metal material 10, the rod 41 of the cylinder 40 is protruded by the detection signal, and the transfer unit 20 is lowered to a position where the thermocompression roller 26 contacts the surface of the metal material 10.

Then, the preheating unit 23 approaches the metal material 10 and heats the metal material 10. When the supply reel 35 and the take-up reel 36 rotate, the transfer film 1 is paid out from the supply reel 35. Then, after being preheated by the preheating unit 37, it is circulated around the guide roller 33 and is thermocompression-bonded to the surface of the metal material 10 by the thermocompression roller 26, and the transfer film 1 is adhered to the surface of the metal material 10. Subsequently, the transfer film 1 is cooled by the cool air blown from the cooling unit 30, and the paint 4 sufficiently adheres to the surface of the metal material 10.
Next, the release film 2 is released from the paint 4 and wound on a take-up reel 36. In this case, since the release film 2 is cooled by the cooling unit 30, it is easy to peel off.

The metal material 10 to which the paint 4 has been transferred as described above is sent below the laser unit 50 or the image pickup device 51 as an inspection means, and a predetermined appearance inspection is performed. The appearance inspection by the laser unit 50 or the imaging device 51 can be performed by well-known optical processing, image processing technology, or the like, and thus the description thereof is omitted. Next, the coating material 53 for protection is applied by the application section 53, and the coating
Cures.

FIG. 4 shows a state in which the transfer film 1 is thermocompression-bonded to the upper surface of the metal material 10 by the thermocompression roller 26. Since the thermocompression roller 26 is an elastic roller, the thermocompression roller 26 is elastically deformed along the upper surface of the metal material 10. Therefore, the transfer film 1 is pressed against both shoulders of the metal material 10 having a U-shaped cross section. As described above, if an elastic roller is used as the thermocompression bonding roller 26, the transfer film 1 is elastically deformed according to the surface shape of the metal material 10, so that the transfer film 1 is pressed against the surface of the metal material 10 with a uniform force and thermocompression bonded. it can.

After the paint 4 and the paint 6 are transferred and applied to the surface (upper surface) of the metal material 10, the paint 4 is applied to both sides of the metal material 10.
And paint 6 is applied. FIG. 6 shows this state. The apparatus for transferring and applying the paint 4 and the paint 6 to both sides of the metal material 10 is the same as that shown in FIG.
The width of 6 ′ is smaller than that shown in FIG.

The present invention allows various design changes,
For example, in the above-described embodiment, the transfer unit is fixed and the metal material is transported by the transport roller, but the metal material is fixed on a fixed base, and the transfer unit is moved in the horizontal direction along the metal material. You may make it do. Further, the shape of the thermocompression bonding roller can be freely changed according to the shape of the metal material to which the transfer film is adhered.

[0025]

As described above, according to the present invention, it is possible to transfer a paint to the surface of a metal material such as an aluminum profile.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus for transferring paint to a metal material.

FIG. 2 is a side view of a main part of a paint transfer device for transferring a metal material.

FIG. 3 is a cross-sectional view of a transfer film.

FIG. 4 is a front view of a thermocompression roller.

FIG. 5 is a side view of a main part of a paint transfer apparatus for transferring a metal material.

FIG. 6 is a side view of the thermocompression bonding roller.

FIG. 7 is a partial perspective view of a metal material.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 transfer film 2 release film 4 paint 6 paint for protection 10 metal material 11 transport roller 20 transfer unit 21 frame 22 sensor 23 preheating unit 26 thermocompression roller 34 release roller 35 supply reel 36 take-up reel 40 cylinder 50 laser unit 51 imaging Apparatus 52 Bad mark marker 53 Protective paint application unit 54 Drying oven

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B005 EB05 EB07 FA12 FA16 GA04 GB01 GD10 3E095 AA01 AA16 BA10 CA10 DA03 DA42 DA59 DA82 DA85 EA03 EA09 EA24 FA30 4D075 AC43 AC74 BB18Z BB23X CB12 CB16 4 AA19 AB04 AC01 BA12 BA16 CB03 CB40 DB02 DB15

Claims (15)

[Claims] 1. A supply section for a transfer film having a coating applied to the surface of a release film, and a thermocompression roller for thermocompressing the transfer film supplied from the supply section to a surface of a metal material and transferring the coating to the surface. And a peeling unit that peels the release film from the surface of the metal material, a collection unit that collects the peeled release film, and a moving unit that relatively moves the metal material with respect to the thermocompression roller and the peeling unit. An apparatus for transferring paint to a metal material, comprising: 2. The transfer unit according to claim 1, wherein said thermocompression roller and said peeling unit are integrally assembled to form a transfer unit, and a vertical movement means for vertically moving said transfer unit relative to a metal material is provided. Item 6. An apparatus for transferring paint to a metal material according to Item 1. 3. The apparatus according to claim 1, further comprising a preheating section for preheating the metal material upstream of the thermocompression bonding roller. 4. A transfer unit in which the thermocompression bonding roller, the peeling unit, and the preheating unit are integrally assembled to each other, and a vertical movement means for vertically moving the transfer unit relative to a metal material is provided. An apparatus for applying a paint to a metal material according to claim 3, characterized in that: 5. Between the thermocompression roller and the peeling section,
5. The apparatus according to claim 1, further comprising a cooling unit configured to cool the transfer film attached to the surface of the metal material. 6. A transfer unit by integrally assembling said thermocompression roller, said peeling unit and said cooling unit, and comprising a vertically moving means for vertically moving said transfer unit relative to a metal material. The apparatus for transferring a paint to a metal material according to claim 5. 7. The transfer device according to claim 2, wherein the transfer unit is a transfer unit that transfers a metal material, and the transfer unit is installed above the transfer unit. Paint transfer equipment for metal materials. 8. An apparatus for applying a paint to a metal material according to claim 1, further comprising an appearance inspection section for the paint transferred to the metal material, provided downstream of the peeling section. . 9. The apparatus according to claim 1, further comprising a coating section for the protective paint and a cured section for the protective paint applied in the coating section, provided downstream of the peeling section. A paint transfer device for transferring a metal material to a metal material according to the above. 10. The apparatus according to claim 1, wherein the thermocompression bonding roller is an elastic roller. 11. A transfer film in which a paint is applied to the surface of a release film is supplied from a supply unit, and the transfer film is thermocompression-bonded to the surface of a metal material by a thermocompression roller to transfer the paint to the surface. A method for transferring paint to a metal material, wherein a release film is peeled off from the surface of the metal material by the peeling part and is collected in a collecting part. 12. The method according to claim 11, wherein before the transfer film is thermocompression-bonded to the surface of the metal material by the thermocompression roller, the metal material is preheated by a preheating unit. . 13. The transfer film attached to the surface of the metal material is cooled by a cooling unit before the release film is peeled from the surface of the metal material by the peeling unit. Paint transfer method to metal material. 14. After the release film is peeled off from the surface of the metal material by the peeling section, a protective paint is applied on the surface of the transferred paint by an application section, and then the applied paint is cured by a curing section. 11. The method according to claim 11, wherein
13. The method for transferring a paint to a metal material according to any of 13. 15. A transfer film is thermocompression-bonded to a surface of a metal material by a thermocompression roller while a metal material is relatively moved by a moving unit with respect to a transfer unit in which the thermocompression roller and the peeling unit are integrated. The method for transferring a paint to a metal material according to any one of claims 11 to 14, wherein the paint film is peeled from the surface of the metal material by a peeling portion after the paint is transferred to the surface.