JP3770486B2 - Hot melt adhesive transfer device - Google Patents

Description

[0001]
The present invention relates to a hot-melt adhesive transfer device to a trim product plate-shaped soundproof material.
[0002]
[Prior art]
The soundproofing material is trimmed into an arbitrary shape after being coated with a release agent coating on one side so that it can be applied to a required location, and then the other side is adhesively processed.
Conventionally, there is a method of transferring a hot-melt adhesive to a trim product plate-shaped soundproof material using a transfer roll and a feed conveyor. Hereinafter, description will be made based on FIG.
[0003]
The transfer roll 3 includes cylindrical rolls 1 and 2 arranged in parallel.
[0004]
However, in the above-described conventional transfer method, the trim product plate-shaped soundproof material 6 is placed on the feed conveyor 5 freely, and the transfer roll 3 forcibly suppresses the soundproof material. As a result, the transfer roll 2 winds up the soundproof material. In this case, it is necessary to remove the soundproofing material attached to the transfer roll 2 each time, which hinders the work. Further, the hot-melt adhesive that hangs down from the lower surface of the adhesive preliminary tank 4 travels between the transfer rolls 1 and 2 and hangs down on the feed conveyor 5, and the hot-melt adhesive adheres on the conveyor. In order to prevent the hot melt adhesive from adhering to the surface of the trim shaped plate-shaped soundproofing material, it is necessary to wipe off the adhesive hanging down on the conveyor, so there are disadvantages such as very poor workability. As a hot melt pressure sensitive adhesive transfer method, it is also disclosed in Japanese Patent Application Laid-Open No. 7-41742, but as is apparent from FIG. 3 therein, there is a possibility that the hot melt pressure sensitive adhesive liquid may sag. . In addition, since the hot melt pressure-sensitive adhesive soaks into the felt after application of the hot-melt pressure-sensitive adhesive, the problem that the effect as the hot-melt pressure-sensitive adhesive is halved cannot be prevented by the conventional method. .
[0005]
In addition, it takes a lot of labor and time and a lot of personnel to stack the trim-formed plate-shaped soundproofing materials, each of which has an adhesive processing on one side, so as not to be displaced.
[0006]
[Problems to be solved by the invention]
Therefore, the present invention provides a soundproofing material that does not wind up on the transfer roll, hangs down the hotmelt adhesive, and does not penetrate the hotmelt adhesive into the soundproofing material. We propose a hot-melt adhesive transfer device that can be stacked and packed automatically.
[0007]
As a result of diligent research, the present inventor has passed through the transfer roll while stroking the trim product plate-shaped soundproofing material with the suction cooling blower having an air volume of 1 to 10 m ³ / min. As a result, the hot melt adhesive is transferred to the trim shaped plate soundproofing material, and at the same time, the hotmelt adhesive is forcibly cooled by the air flow of the blower, which is the suction force, and the hotmelt adhesive penetrates into the soundproofing material. It has been found that the above-mentioned problems can be solved by performing adhesive processing by forming a hot-melt adhesive layer on the surface of the soundproof material promptly.
[0008]
A trim product plate-shaped soundproofing material is a needle felt, resin felt, thermoplastic felt, or synthetic resin foam material that has been trimmed into an arbitrary shape after a release agent is applied to one side.
[0009]
【Example】
A hot-melt adhesive transfer device according to the present invention will be described with reference to the drawings.
FIG. 3 shows the overall flow, and the suction cooling blower 8 moves simultaneously with the perforated plate 9 at an air volume of 2 m ³ / min. The perforated plate 9 is uniformly provided with a hole diameter of 3 mm and a pitch of 20 mm so that the trim product plate-shaped soundproofing material can be sufficiently sucked. Further, the perforated plate 9 moves along the rail 11, and the rail 11 is rotated so that the suction cooling blower 8 and the perforated plate 9 can return to the process start position when the entire hot melt adhesive transfer process is completed. It is incorporated into the equation and is further supported by a fixture 12. The soundproofing material positioning jig 7 has about four trim-shaped plate-shaped soundproofing material molds. Therefore, a trimmed plate-shaped soundproofing material in which a release agent is applied and processed on one side in advance in the mold. It is sufficient to prepare it by putting the surface on which the release agent is applied upward.
[0010]
The perforated plate 9 descends to the position of the soundproofing material installing device 7, and the suction cooling blower 8 rises again simultaneously with the perforated plate 9 while sucking the trim product plate-shaped soundproofing material 10 through the perforated plate 9. Next, the process proceeds to an adhesive transfer process.
[0011]
In the adhesive transfer process, the hot melt adhesive transfer tank 14 is filled with a hot melt adhesive that has been heated and liquefied, and the transfer roll 13 rotates in the hot melt adhesive transfer tank 14. A thin film of hot-melt adhesive is always attached to 13. When the trim product plate-shaped soundproofing material 10 that has been sucked and moved by the suction cooling blower 8 through the perforated plate 9 passes lightly on the transfer roll 13, it is applied to one side of the trim product plate-shaped soundproofing material 10. Simultaneously with the transfer of the hot-melt adhesive, the hot-melt adhesive is forcibly cooled by the air flow of the suction cooling blower to form a hot-melt adhesive layer on the surface of the trim product plate-shaped soundproofing material 10.
[0012]
The trim product plate-shaped soundproofing material 10 coated with hot-melt adhesive on one side is subjected to the packaging work process while the hot-melt adhesive is forcibly cooled by the suction cooling blower 8 and kept sucked. Enter. When the suction cooling blower 8 is positioned at the packing place, the packing box lifter 16 stops rising up to the vicinity of the perforated plate 9. At that time, since the suction cooling blower 8 is turned off, the trim product plate-shaped soundproofing material 10 is dropped and stacked in the packing box 15, and the packing box lifter 16 is automatically lowered every time the soundproofing material is stacked. Since the trim product plate-shaped soundproofing material falls only at a fixed position and is stacked, the soundproofing materials are not shifted and stacked. When the soundproofing material 10 that has been subjected to adhesive processing is stored in the packing box 15, the entire process is completed, and during that time, the perforated plate 9 and the suction cooling blower 8 subsequently run on the rail 11 to start the process. Returning to position, the above operation is performed again.
[0013]
【The invention's effect】
The hot melt pressure sensitive adhesive transfer apparatus according to the present invention is 1) without the transfer roll winding up the trim shaped plate-shaped soundproof material, 2) without fear of the hot melt pressure sensitive adhesive dropping, and 3) simplifying the packing operation. And the like. Therefore, by eliminating wasted work, it is possible to significantly shorten the process work time and reduce the number of personnel, and because a large number of sheets can be adhesively processed at one time, the work efficiency is greatly improved. It is also possible.
Furthermore, in the present invention, the contact portion between the hot melt adhesive and the felt is forcibly cooled by the suction method of the blower jig, thereby preventing the hot melt adhesive from penetrating into the felt. It was possible to place the adhesive on the felt surface only, and the function as a hot melt adhesive could be sufficiently obtained. As a result, we succeeded in further strengthening the adhesiveness of the trim product plate-shaped soundproofing material to the necessary locations.
[Brief description of the drawings]
FIG. 1 shows a conventional adhesive transfer device.
FIG. 2 is a perspective view of a transfer roll 3. FIG.
FIG. 3 shows an adhesive transfer device according to the present invention.
FIG. 4 is a process diagram when positioned on a packing box lifter 16;
FIG. 5 is a view showing a perforated plate 9;
FIG. 6 is a view showing an adhesive transfer tank and a transfer roll.
[Explanation of symbols]
1 Transfer roll 1
2 Transfer roll 2
3 Transfer roll 3
4 Adhesive spare tank 5 Feed conveyor 6 Trim plate soundproof material 7 Soundproof material positioning jig 8 Suction cooling blower 9 Perforated plate
10 Trim plate soundproof material
11 rails
12 Fixing jig
13 Transfer roll
14 Hot melt adhesive transfer tank
15 Packing box
16 Packing box lifter

Claims (3)

It is a hot melt adhesive transfer device to trim product plate shape soundproofing material, transferring the hotmelt pressure sensitive adhesive to the trim product plate shape soundproofing material with a transfer roll while sucking and moving the soundproofing material by suction cooling blower . A hot-melt pressure-sensitive adhesive transfer device characterized in that the pressure-sensitive adhesive is processed by forced cooling at the same time . 2. The hot melt adhesive transfer according to claim 1, wherein the soundproofing materials are arranged at a predetermined position, and then are sucked and moved by a suction cooling blower having an air volume of 1 to 10 m ³ / min through a perforated plate. apparatus. 2. The hot melt pressure sensitive adhesive transfer apparatus according to claim 1, wherein the soundproofing material is automatically dropped and stacked and packed at a predetermined position after the hot melt pressure sensitive adhesive is processed.

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