KR100878985B1 - A apparatus for separating a heterogeneous multiple film - Google Patents

Abstract

A separator for separating the multiple kinds of layered films is provided to allow the layered film to be removed massively within a short time by using an adhesive peeling unit. A separator for separating the multiple kinds of layered films comprises a first roller(111) which unwinds the film wound where an adhesive is coated; a drawing unit(120) which draws the film rolled to the first roll to transfer it; an adhesive exfoliation unit which removes the adhesive adhered to the transferred film; and a heat treatment unit which heats the adhesive coated on the film to change the hardness and is provided with a heat treatment roller having a heating wire.

Description

A apparatus for separating a heterogeneous multiple film

The present invention relates to a multiple heterogeneous laminated film separator for separating multiple heterogeneous laminated films by removing an adhesive applied to a thin film such as a polyethylene resin film, a polypropylene resin film, a polyester resin film, and a polyvinyl chloride film. Specifically, these films are for recycling by rotating the rollers on which these films are wound to remove these adhesives applied to these films while releasing these films from the rollers.

In order to recycle adhesive-coated films such as polyethylene resin film, polypropylene resin film, polyester resin film, and polyvinyl chloride film coated with adhesive on the surface, the adhesive applied to these films must be separated and removed. .

However, the adhesive applied to these films has a strong adhesive force, so there is a problem that it takes time and cost to remove the adhesive from these films.

The present invention changes the hardness of the adhesive by heating or cooling an adhesive applied to a thin film such as a polyethylene resin film, a polypropylene resin film, a polyester resin film, a polyvinyl chromide film, and the adhesive peeling means in a short time. It is an object to provide multiple heterogeneous laminated film separators that can be removed in bulk.

The present invention provides a first roller for releasing a film coated with an adhesive, a drawing means for drawing and conveying the film wound on the first roller, and an adhesive attached to the film unwound from the first roller. Adhesive peeling means provided between the first roller and the extracting means so as to be in contact with the contact portion; and between the adhesive peeling means and the first roller so that the adhesive peeling means easily peels off the adhesive. It relates to a heterogeneous multi-layered film separator which comprises heat-treating the adhesive applied to the film comprises a heat treatment unit for changing the hardness.

In the present invention, the heat treatment unit may include a heat treatment roller to guide the transfer by winding the film around a predetermined portion, the heat treatment roller is provided with a heating wire to heat the film, or the heat treatment to cool the film The coolant may be embedded in the roller.

In the present invention, the adhesive peeling means may be a scratching means having a wedge-shaped blade is formed to remove the adhesive applied to the film, the scratching means is such that the wedge-shaped blade is close to the outer peripheral surface of the heat treatment roller It may be installed.

The present invention includes a tension roller which is in contact with the surface coated with the adhesive so that the opposite surface coated with the adhesive of the film is pressed on the heat treated roller, or the drawing means and the heat treated roller to remove the sludge formed on the film. It is installed between, and the circumferential surface may include a sludge removal roller in contact with the surface formed with the adhesive of the film, the sludge removal roller may be formed of a silicon material to prevent the generation of static electricity, and the An electrostatic eliminator may be provided in an opposite direction of the sludge removing roller.

In the present invention, the withdrawal means may be a first take-out roller and a second take-out roller that rotates while pressing both sides of the film, the present invention is a layer peeled from the film is wound when the film is a multilayer film It may include an auxiliary roller, and a second roller for winding the film passed through the drawing means, and a hopper installed below the sludge removal roller and the heat treatment roller to collect the adhesive and sludge removed from the film; Can be.

In the present invention, the adhesive peeling means may include a polishing portion having a plurality of projections formed on the surface, the polishing portion may include a polishing roller provided on the circumferential surface, the polishing portion may be a brush.

The apparatus according to the present invention heat-treats the adhesive applied to a thin film such as a polyethylene resin film, a polypropylene resin film, a polyester resin film, a polyvinyl chloride film, and changes its hardness, and then a short time by the adhesive peeling means. Can be removed in large quantities, which has the advantage of recycling these films.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

Example 1 relates to a multiple heterogeneous laminated film separator according to the present invention. 1 shows a schematic configuration diagram of Embodiment 1. FIG.

Referring to FIG. 1, Embodiment 1 has a first roller 111. A film coated with an adhesive is wound on the first roller 111, and the first roller 111 is installed to release the wound film. Accordingly, the first roller shaft 113 is fixedly connected to the first roller 111, and the first roller shaft 113 may be rotatably mounted with respect to the first roller shaft support 115.

Referring to FIG. 1, Example 1 has a first take-out roller 121 and a second take-out roller 122. The first drawing roller 121 and the second drawing roller 122 are drawing means 120 for drawing out and conveying the film wound on the first roller 111. The first drawing roller 121 and the second drawing roller 122 are installed in opposite directions with respect to the film to press and rotate both sides of the film to apply a conveying force to the film. Therefore, the first take-out roller 121 rotates in the clockwise direction, and the second take-out roller 122 rotates in the counterclockwise direction.

Referring to Figure 1, Example 1 has a heat treatment roller 131. The heat treatment roller 131 is a roller for changing the hardness by cooling or heating the adhesive of the film to be transferred. The heat treatment roller 131 is installed to guide the transfer of the film while winding the film on a predetermined portion of its outer circumferential surface in order to cool or heat the adhesive of the film. That is, the heat treatment roller 131 cools or heats the adhesive applied to the film while contacting the film at a predetermined portion of its outer circumferential surface during the transfer of the film. Therefore, the heat treatment roller 131 may be provided with a heating wire inside the outer peripheral surface for heating, it may be provided with a refrigerant therein for cooling. The heat treatment roller 131 is preferably rotated so that the outer circumferential surface for guiding the transfer of the film moves in the same manner as the transfer speed and the transfer direction of the film. Therefore, the heat treatment roller shaft 133 is fixedly connected to the heat treatment roller 131, and the heat treatment roller shaft 133 may be rotatably mounted with respect to the heat treatment roller shaft support (not shown).

The heat treatment roller 131 is a heat treatment portion for facilitating the adhesive peeling means described later to easily peel off the adhesive by heat treating the adhesive applied to the film and changing its hardness. Therefore, in the case of the present invention, the heat treatment unit is not necessarily limited to the heat treatment roller 131. That is, the heat treatment unit may be a steam generator or a cold gas generator.

Referring to Figure 1, Embodiment 1 has a scraping means 135. The scratching means 135 is for scraping off the adhesive applied to the film, and the wedge-shaped blade is formed at the tip thereof. The scraping means 135 may be a knife. The scraping means 135 is installed so that the blade is close to the outer peripheral surface of the heat treatment roller 131. That is, the scraping means 135 has a blade formed at its tip portion to maintain a small gap between the outer peripheral surface of the heat treatment roller 131, so that the adhesive applied to the film passing through the gap is the blade of the scraping means 135. It is installed to be scraped off. The scraping means 135 is an adhesive peeling means for removing the heat-treated adhesive. In the case of the first embodiment, the adhesive peeling means is not limited to the scratching means 135. The adhesive peeling means may be an abrasive having a polishing part such as a brush or sandpaper.

The heat treatment roller 131 and the scraping means 135 are provided between the first roller 111 and the drawing means 120.

Referring to Figure 1, the first embodiment is provided with a tension roller 141. The tension roller 141 is in contact with the surface on which the adhesive is applied to the film to maintain a state in which the tensile force acts on the film, so that the blade of the scraping means 135 can sufficiently remove the surface on which the adhesive is applied to the film. To be installed. That is, the tension roller 141 is installed so that the blade of the scraping means 135 can remove the adhesive to its bottom by pressing the opposite surface coated with the adhesive of the film on the outer peripheral surface of the heat treatment roller 131. The tension roller 141 is provided in a direction opposite to the swelling liquid treatment roller 151 described later with the heat treatment roller 131 interposed therebetween.

Referring to FIG. 1, a swelling liquid treatment part 150 is provided between the heat treatment roller 131 and the first roller 111. The swelling liquid treatment part 150 includes a swelling liquid treatment roller 151 and a swelling liquid container 155. The swelling liquid container 155 is a container in which the swelling liquid is accommodated. The swelling liquid is a solution containing an organic solvent capable of swelling the adhesive of the film. The adhesive is swelled in contact with the swelling liquid and is effectively scraped off by the blade of the scraping means 135.

Referring to Figure 1, the swelling liquid treatment roller 151 is installed so that the portion in contact with the film to guide the transfer of the film is located in the swelling liquid container 155. That is, when the swelling liquid is accommodated in the swelling liquid container 155, the film transferred to the swelling liquid treatment roller 151 is installed to be contained in the aqueous solution. Therefore, the entire portion of the swelling liquid treatment roller 151 does not need to be located inside the swelling liquid container 155. On the other hand, the swelling liquid treatment roller 151 is preferably rotated so that the outer circumferential surface for guiding the transfer of the film moves in the same manner as the feed rate and the transfer direction of the film. Accordingly, the swelling liquid treatment roller shaft 153 is fixedly connected to the swelling liquid treatment roller 151, and the swelling liquid treatment roller shaft 153 is rotatably mounted with respect to the swelling liquid treatment roller shaft support (not shown). Can be.

Referring to FIG. 1, a sludge removal roller 161 is provided between the lead means 120 and the tension roller 141. The film may not be completely peeled off by the adhesive scratched on the scratching means 135, or sludge may be formed by adhering suspended solids in the air to the surface on which the adhesive is formed. The sludge removal roller 161 is to remove the sludge formed on the film and is installed so that the circumferential surface thereof is in contact with the surface on which the adhesive is formed. The sludge removal roller 161 is preferably formed of a material that prevents the generation of static electricity due to contact with the film, and thus may be formed of a silicon material. In addition, the sludge removal roller 161 may be driven by a belt (not shown) which is an electric transmission device, in which case the sludge removal roller 161 rotates in the opposite direction to the conveying direction of the film, thereby increasing the frictional force. The sludge formed on the film can be effectively removed.

Referring to FIG. 1, an electrostatic eliminator 165 is provided in an opposite direction of the sludge removing roller 161 around the film. The static eliminator 165 is a device for preventing the sludge from being strongly adsorbed by the film due to the static electricity generated in the film and not easily peeled off by the sludge removing roller 161. The static eliminator 165 is a conventional device, and may be, for example, spraying water through a nozzle.

Referring to FIG. 1, Embodiment 1 has a second roller 171. The second roller 171 is a roller that winds up the film that has passed through the drawing means 120. The second roller shaft 173 is fixedly connected to the second roller 171, and the second roller shaft 173 may be rotatably mounted with respect to the second roller shaft support 175. Therefore, as the second roller shaft 173 is driven and rotated, the second roller 171 rotates and winds up the film passing through the drawing means 120.

Referring to Figure 1, the sludge removal roller 161 and the scraping means 135 is provided with a hopper 182. Hopper 182 is for collecting the adhesive and sludge removed from the film. A lower portion of the hopper 182 may be provided with a conveyor (not shown) for transferring the collected adhesive and sludge.

2 shows a schematic view of the main part of a modified embodiment of the first embodiment.

Referring to FIG. 2, the above-described modified embodiment has a third roller 191. The third roller 191 is for winding a layer of film separated from the adhesive when the film wound on the first roller 111 is a two-layer film laminated in two layers by an adhesive.

3 shows a schematic view of a main part of another modified embodiment of the first embodiment.

Referring to FIG. 3, the above-described modified embodiment has a third roller 191 and a fourth roller 195. The third roller 191 and the fourth roller 195 are the first adhesive layer when the film wound on the first roller 111 is a three-layer film bonded to the first adhesive layer and the second adhesive layer and laminated in three layers. For winding each of the two film layers separated from each other.

Hereinafter, the operation of the first embodiment described above will be described.

Referring to FIG. 1, a film coated with an adhesive on one surface is wound on a first roller 111, and one end of the film is connected to a second roller through a first drawing roller 121 and a second drawing roller 122. It is wound around 171.

Referring to FIG. 1, when the first draw roller 121 and the second draw roller 122 rotate while pressing the film, a tensile force acts on the film, and thus the film is released from the first roller 111.

1 and 2, the film released from the first roller 111 is guided by the swelling liquid treatment roller 151 and comes into contact with the swelling liquid contained in the swelling liquid container 155. Since the swelling liquid contains an organic solvent that swells the adhesive, the adhesive swells to help the adhesive effectively peel off by the scraping means 135.

Referring to FIG. 1, since the tension roller 141 is disposed in a direction opposite to the swelling liquid processing roller 151 with the heat treatment roller 131 interposed therebetween, the film is swelling liquid processing roller 151 in a constant tension state . Since the blade of the scraping means 135 can be removed by scraping the adhesive to its bottom.

Referring to Figure 1, the heat treatment roller 131 is in contact with the film to heat or cool the adhesive of the swollen film to change its hardness, so that the scratching means 135 effectively applied to the adhesive coated on the swelled film Can be removed.

Referring to FIG. 1, since the film passing through the scratching means 135 contacts the sludge removing roller 161 via the tension roller 141, the sludge formed on the film is removed. At this time, since the static electricity generated in the film is removed by the static eliminator 165, and the sludge removal roller 161 is formed of silicon, the static electricity existing between the film and the sludge is small so that the sludge removal roller 16 effectively removes the sludge. You can do it.

Referring to FIG. 1, the film from which the sludge is removed is wound around the second roller 171 by passing through the first drawing roller 121 and the second drawing roller 122.

Meanwhile, referring to FIGS. 2 and 3, in the modified embodiment of Embodiment 1, when the film is a double film or a triple film, the third roller 191 and the fourth roller 195 are separated from the double film or the triple film. Each of the remaining layers of film were wound up.

Example 2

Example 2 relates to a multiple heterogeneous laminated film separator according to the present invention. 4 shows a schematic configuration diagram of Embodiment 2. FIG.

4, the second embodiment includes a first roller 211, a first roller shaft 213, a first roller shaft support 215, a first take-out roller 221, and a second take-out roller 222. Drawing means 220, heat treatment roller 231, heat treatment roller shaft 233, polishing roller 235-1, sludge removal roller 261, static eliminator 265, second roller 271, second It has a roller shaft 273, the 2nd roller shaft support 275, and the hopper 282. Except for the polishing roller 235-1, these are the same as those described in Example 1, and the description thereof is omitted.

Referring to Figure 4, the polishing roller 235-1 is installed between the heat treatment roller 231 and the sludge removal roller 261.

Referring to Figure 5, the outer peripheral surface of the polishing roller 235-1 is provided with a polishing portion (235-5) . The polishing unit 235-5 has a plurality of protrusions formed on a surface thereof, and may be sandpaper or a brush. The polishing roller 235-1 and the polishing portion 235-5 are adhesive peeling means 235 for polishing and removing the adhesive by contacting the adhesive attached to the film which is unwound from the first roller (not shown). .

5, the polishing roller shaft 235-3 is fixedly connected to the polishing roller 235-1, and the polishing roller shaft 235-3 is rotatably mounted with respect to the polishing roller shaft support (not shown). Can be. In addition, the polishing roller 235-1 may be driven by a belt (not shown) which is an electric transmission device, in which case the polishing roller 235-1 rotates in the opposite direction to the conveying direction of the film, thereby increasing the frictional force. Thus, the adhesive applied to the film can be effectively peeled off.

Other matters are as described in Example 1.

Example 3

Example 3 relates to a multiple heterogeneous laminated film separation method according to the present invention. 6 shows a flowchart of Embodiment 3.

Referring to FIG. 6, Embodiment 3 includes a first step S10, a second step S20, and a third step S30.

The first step S10 is a step of releasing the film wound on the first roller by applying an adhesive. There are several methods for releasing the film, and for example, the film can be released from the first roller by using the apparatus described in Example 1.

The second step (S20) is a heat treatment step of heating or cooling the adhesive applied to the film so that the hardness of the adhesive applied to the film released from the first roller is changed. There are a number of methods for heat treatment of the adhesive applied to the film, for example, by using the heat treatment roller described in Examples 1 and 2 can change the hardness of the adhesive.

The third step (S30) is a step of removing the adhesive in contact with the adhesive. There are several methods for removing the adhesive, for example, using the scratching means or brush described in Example 1 or Example 2 The adhesive can be removed.

Although not shown in FIG. 6, Example 3 may include removing sludge formed on the film, removing static electricity generated in the film, and winding the film from which the adhesive and the sludge have been removed.

1 is a schematic configuration diagram of Embodiment 1. FIG.

2 is a schematic view of principal parts of a modified embodiment of the first embodiment;

3 is a schematic view of principal parts of another modified embodiment of the first embodiment;

4 is a schematic structural diagram of Embodiment 2;

<Description of the symbols for the main parts of the drawings>

111: first roller 113: first roller shaft

115: first roller shaft support

120: drawing means 121: first drawing roller

122: second withdrawal roller

131: heat treatment roller 133: heat treatment roller shaft

135: scratching means

141: tension roller

150: swelling liquid processing unit 151: swelling liquid processing roller

153: swelling liquid treatment roller shaft 155: swelling liquid container

161: sludge removal roller 165: static eliminator

171: second roller 173: second roller shaft

175: second roller shaft support

182: Hopper

191: Third roller 195: Fourth roller

211: First roller 213: First roller shaft

215: first roller shaft support

220: drawing means 221: first drawing roller

222: second withdrawal roller

231: heat treatment roller 233: heat treatment roller shaft

235: adhesive peeling means 235-1: polishing roller

235-3: Abrasive roller shaft 235-5: Abrasive part

261: sludge removal roller 265: static eliminator

271: 2nd roller 273: 2nd roller shaft

275: second roller shaft support

282: Hopper

Claims (16)

delete delete A first roller for releasing the wound film coated with an adhesive, Drawing means for drawing out and conveying the film wound on the first roller; Adhesive peeling means provided between the first roller and the withdrawing means to contact the adhesive attached to the film unwound from the first roller to remove the adhesive; It includes a heat treatment for changing the hardness by heat-treating the adhesive applied to the film between the adhesive peeling means and the first roller so that the adhesive peeling means is easy to peel off the adhesive, The heat treatment unit includes a heat treatment roller which is guided by the transfer by winding the film on a predetermined portion of the outer circumference, The heterogeneous laminated film separator, characterized in that the heat treatment roller is provided to heat the film. A first roller for releasing the wound film coated with an adhesive, Drawing means for drawing out and conveying the film wound on the first roller; Adhesive peeling means provided between the first roller and the withdrawing means to contact the adhesive attached to the film unwound from the first roller to remove the adhesive; It includes a heat treatment for changing the hardness by heat-treating the adhesive applied to the film between the adhesive peeling means and the first roller so that the adhesive peeling means is easy to peel off the adhesive, The heat treatment unit includes a heat treatment roller which is guided by the transfer by winding the film on a predetermined portion of the outer circumference, The heterogeneous laminated film separator, characterized in that the refrigerant is embedded in the heat treatment roller to cool the film. The method according to claim 3 or 4 , The adhesive peeling means is a multiple heterogeneous laminated film separator, characterized in that the scraping means having a wedge-shaped blade is formed to remove the adhesive applied to the film. The method of claim 5, The scraping means is a multiple heterogeneous laminated film separator, characterized in that the wedge-shaped blade is installed to be close to the outer peripheral surface of the heat treatment roller. The method of claim 6, And a tension roller in contact with the surface to which the adhesive of the film is applied such that the opposite surface to which the adhesive of the film is applied is pressed against the heat treatment roller. The method of claim 7, wherein And a sludge removal roller installed between the drawing means and the heat treatment roller to remove the sludge formed on the film, the circumferential surface of which is in contact with the surface on which the adhesive is formed. The method of claim 8, The sludge removal roller is a multiple heterogeneous laminated film separator, characterized in that formed of a silicon material to prevent the generation of static electricity. The method of claim 9, Multi-layer laminated film separator, characterized in that the static eliminator is provided in the opposite direction of the sludge removal roller around the film. The method of claim 5, The drawing means is a multiple heterogeneous laminated film separator, characterized in that the first take-out roller and the second take-out roller is rotated while pressing both sides of the film. The method of claim 5, And wherein the film is a multilayer film, comprising a secondary roller on which the layer peeled from the film is wound. The method of claim 8 , A second roller for winding the film passing through the drawing means; And a hopper installed below the sludge removing roller and the heat treatment roller to collect the adhesive and sludge removed from the film. The method according to claim 3 or 4 , The adhesive peeling means is a multiple heterogeneous laminated film separator, characterized in that it comprises a polishing portion formed with a plurality of projections on the surface. The method of claim 14, The adhesive peeling means is a multiple heterogeneous laminated film separator, characterized in that the polishing unit includes a polishing roller provided on the circumferential surface. The method of claim 15, The polishing unit is a multiple heterogeneous laminated film separator, characterized in that the brush.

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