JP2000325851A - Tacky adhesive agent applying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly stick a tacky adhesive agent on the surface of a large quantity of crushed chips by providing a cylindrical stirring drum pivoted obliquely and rotatably and ejecting the tacky adhesive agent on a material in a stirring drum from a spray nozzle attached to a material discharge port side of the stirring drum. SOLUTION: The material such as the crushed chips is charged into a material charge port 50 of the stirring drum 44 from a material supply hopper 54. Because the stirring drum 44 is gently inclined toward the material discharge port 52 from the material charge port 50, the material such as the crushed chips is formed into a uniform layer by loosening the lumps with the rotation of the stirring drum 44 and slowly moved toward the material discharge port 52. When the material such as the crushed chips reaches the vicinity of the discharge port of the stirring drum, the tacky adhesive agent supplied from a tacky adhesive agent storage tank 56 is sprayed from a spray nozzle 60 to be uniformly stuck to the material such as the crushed chips forming the uniform layer. The material such as the crushed chips, to which the tacky adhesive agent is uniformly stuck, is continuously discharged from the material discharge port 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive adhesive coating apparatus which is used when a fine cut piece or crushed particle (hereinafter simply referred to as a crushed piece) is coated with a pressure-sensitive adhesive and subjected to compression molding.

[0002]

2. Description of the Related Art Conventionally, an adhesive is used when an adhesive is adhered to the surface of a cut piece or a crushed piece (for example, shredder waste) of industrial waste, and this is compression-molded and regenerated as a plate material or the like. Fig. 3
1 and the side view of FIG. 4 are used. In this apparatus, the stirring drum 10 has a central portion 10a whose diameter is enlarged, one side end surface is an opening 10b, and the other side end surface is a bottom surface 10c, which is provided on a side surface on the bottom surface 10c side. The shaft support 10 d is rotatably supported by the gantry 12, and can be tilted to a desired angle by the air cylinder 14.

The pressure-sensitive adhesive is an air-pressure-type pressure-sensitive adhesive storage tank 1.
6, the base end 18 a of the supply pipe 18 is connected to the adhesive storage tank 16, and the front end 18 b of the supply pipe 18 is connected to the spray nozzle 20 installed toward the opening 10 b of the stirring drum 10. ing. Accordingly, the pressure-sensitive adhesive fed from the pressure-sensitive adhesive storage tank 16 by the supply pipe 18 is sprayed from the spray nozzle 20 onto the material in the stirring drum 10.

At the center of the bottom surface 10 c of the stirring drum 10, a rotating blade 22 is supported by a stirring shaft 24 mounted so as to coincide with the axis of the stirring drum 10.
Are rotated by a direct connection motor 26. Thereby, by the operation of the air cylinder 14, the crushed pieces loaded from the opening 10 a of the stirring drum 10 positioned upward are sprayed with the adhesive from the spray nozzle 20 while being stirred by the stirring blades 22. The crushed pieces are disentangled, and the adhesive can be uniformly attached to the surface.

Another conventional apparatus is as shown in FIG. 5, in which a rotary drum 28 has a bottomed cylindrical shape and is mounted on a gantry 30 so as to be rotatable and tiltable. An adhesive liquid spray 42 is attached facing the same. On the rotating drum 28, a weighing device 32 is provided.
A hopper 36 provided with a crushed piece scraping cylinder 34 at the lower end discharge port is further mounted on the gantry 30 thereon.

In this apparatus, a weighing device 3 is
When the desired amount of the crushed pieces scraped out by the scraping cylinder 34 reaches the desired amount, the scraping cylinder 34 is stopped, and the desired amount of the crushed pieces is transferred from the weighing device 32 to the rotating drum 2.
8 is charged. The adhesive contained in the adhesive liquid tank 38 is supplied by a metering pump 40 to a fixed amount of adhesive liquid through a liquid feed pipe 40 to an adhesive liquid spray 42 attached to the opening 28 a of the rotating drum 28. Then, the adhesive is sprayed from the adhesive liquid spray 42 onto the crushed pieces put into the rotary drum 28.

[0007]

However, in the conventional apparatus for spraying the adhesive liquid of crushed pieces, in the former apparatus, the crushed pieces are stirred by the stirring blades 22 in the stirring drum 10.
Therefore, the adhesive liquid can be sufficiently and evenly adhered to the crushed pieces because of sufficient stirring. However, since it is a batch type, there is a problem that the processing ability is inferior. Also,
Since the latter device is of a batch type like the former device,
As with the former apparatus, the processing capacity is inferior, the stirring in the stirring drum 28 is insufficient, and the crushed pieces are loosened and the adhesive is not uniformly attached to the crushed pieces.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional adhesive spray apparatus for crushed pieces, and is intended to uniformly apply the adhesive to the surface of a large number of crushed pieces. It is an object of the present invention to provide a pressure-sensitive adhesive spray device that can be used.

[0009]

The pressure-sensitive adhesive spray device of the present invention is rotatably supported obliquely so that a difference in height is formed at both ends, and has a high-side end opening as a material inlet and a low-side end opening. A cylindrical stirring drum serving as a material discharge port, a material supply hopper for supplying a material from the material input port, an adhesive storage tank for storing the adhesive and for pressure-feeding the adhesive through a supply pipe; Is connected to the pressure-sensitive adhesive storage tank, and has a tip portion which enters from the material discharge port side of the stirring drum, and a pressure-sensitive adhesive injection pipe which sprays the pressure-sensitive adhesive to the material in the stirring drum from a spray nozzle attached to the tip portion. The gist is to be composed.

[0010]

The crushed pieces are supplied from the material supply hopper to the material input port at the opening at the high end of the stirring drum. Since the cylindrical stirring drum is rotatably supported at both ends so as to be able to make a difference in height, the crushed pieces introduced from the material input port at the opening on the high-side end surface of the stirring drum rotate the stirring drum. As a result, the material is uniformly disentangled and moved to the material discharge port at the lower-side end face opening. Therefore, the crushed pieces are continuously supplied to the stirring drum, and the adhesive can be sprayed on the surface.

From the pressure-sensitive adhesive storage tank, the pressure-sensitive adhesive is fed to the spray nozzle through a supply pipe, but since the spray nozzle is mounted near the leading end of the stirring drum that has entered from the material outlet side, Since the crushed pieces form a uniform layer while moving in the stirring drum, the adhesive can be uniformly attached to the crushed pieces. The spray nozzle may be attached to the material inlet depending on the type of the crushed particles or the adhesive.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a pressure-sensitive adhesive coating apparatus according to an embodiment of the present invention, in which a stirring drum 44 is cut, and FIG. 2 is a right side view of the apparatus of FIG. The cylindrical stirring drum 44 is rotatably supported by two rotating wheels 48 on each of left and right sides on an oblique base 46 so that a height difference is formed at both ends, and the rotating wheels 48 are arranged as shown in FIG. It is rotated by the drive motor 62.

In FIG. 1, a high-end opening on the right side of the stirring drum 44 serves as a material inlet 50, and a low-end opening on the left side serves as a material outlet 52. A material supply hopper 54 for supplying a material is connected to the material input port 50, and a material such as crushed pieces is supplied to the stirring drum.

The pressure-sensitive adhesive storage tank 56 is of an air pressurized type and stores pressure-sensitive adhesive. Base end 5 of supply pipe 58
8a is connected to the pressure-sensitive adhesive storage tank, the tip of which enters from the material discharge port 52 side of the stirring drum, and a plurality of spray nozzles 60 are attached to the tip 58b. As a result, the adhesive is supplied from the spray nozzle 6 through the supply pipe 58.
It is pumped to zero.

In the pressure-sensitive adhesive spray device of the present embodiment having the above-described configuration, a predetermined amount of material such as crushed pieces is charged from the material supply hopper 54 to the material charging port 50 of the stirring drum 44. Since the stirring drum 44 is gently inclined from the material input port 50 toward the material discharge port 52, the material such as crushed pieces is disintegrated while rolling in the stirring drum 44 by rotation of the stirring drum 44, It moves in a uniform layer slowly toward the material discharge port 52.

When the material such as crushed pieces reaches the vicinity of the discharge port of the stirring drum 44, the adhesive is sprayed from the spray nozzle 60. The adhesive can be evenly adhered to the adhesive. Since the material such as crushed pieces to which the adhesive is uniformly attached is continuously discharged from the material discharge port 52, the adhesion of the adhesive can be continuously performed.

[0017]

As described in detail above, the pressure-sensitive adhesive coating apparatus of the present invention is supported obliquely rotatably so that there is a height difference between both ends, and the high-side end surface opening is used as a material inlet and the low-side end surface. A material is continuously supplied from a material supply hopper to a material input port using a cylindrical stirring drum having an opening as a material discharge port. Since the stirring drum is gently inclined from the material input port to the material discharge port, the material such as crushed pieces is disintegrated while rolling inside the stirring drum by the rotation of the stirring drum, forming a uniform layer. Move slowly towards the material outlet. When the material, such as crushed pieces, reaches the vicinity of the discharge port of the stirring drum, the adhesive is sprayed from the spray nozzle. Can be evenly attached.

[Brief description of the drawings]

FIG. 1 is a front view of a state in which a stirring drum according to an embodiment of the present invention is cut.

FIG. 2 is a right side view of FIG.

FIG. 3 is a front view of a conventional pressure-sensitive adhesive coating device.

FIG. 4 is a right side view of the conventional device of FIG. 3;

FIG. 5 is a side view of another conventional device.

[Explanation of symbols]

 10 Stirring drum 10a Stirring drum trunk 10b Stirring drum bottom surface 10c Stirring drum opening 10d Stirring drum shaft support 12 Stand 14 ······················································································································································· · Spray nozzle 22 · · · Rotating blade 26 · · · Directly connected motor 28 · · · Rotating drum 30 · · · Base 32 · · · Weighing device 34 · · · scraping cylinder 36 · · · hopper 38 ··· Adhesive liquid tank 40 ··· Liquid feed pipe 42 ··· Spray nozzle 44 ··· Stirring drum 46 ··· Stand 48 ··· Wheel 50 ··· Material inlet 52 ··· Material outlet 5 .... material feed hopper 56 ... adhesive storage tank 58 ... supply pipe 60 ... spray nozzle 62 .... metering pump

Claims (1)

[Claims] 1. A cylindrical stirring drum which is rotatably supported obliquely so that a difference in height is formed at both ends and has a high-side end opening as a material inlet and a low-side end opening as a material outlet.
A material supply hopper for supplying a material from the material input port,
A pressure-sensitive adhesive storage tank for storing the pressure-sensitive adhesive and for feeding the pressure-sensitive adhesive through a supply pipe, a base end connected to the pressure-sensitive adhesive storage tank, and a front end portion which enters from the material discharge port side of the stirring drum and has a front end portion. And a pressure-sensitive adhesive spray pipe for spraying a pressure-sensitive adhesive from a spray nozzle attached to the material in the stirring drum.