KR100497057B1 - Adhesive Applicator for Polystyrene Sheet Adhesive - Google Patents

Abstract

The present invention relates to a polystyrene sheet adhesive machine for thermally bonding a plurality of polystyrene sheets and then adhering paper on both sides in a process of transferring the thermally fused sheets, and continuously forming minute grooves on the outer circumferential surface of the adhesive coating roller and The adhesive application roller and the middle roller are rotated by the frictional force of the gear, but the rotation speed of the adhesive application roller is set faster than the rotation speed of the middle roller so that the adhesive application roller scrapes the adhesive stuck in the middle roller and the adhesive is applied. It is to be accommodated uniformly in the groove of the roller.

To this end, the shafts of the upper and lower adhesive application rollers (23, 24) of the upper and lower adhesive application units (18) and (19) are installed on the conveying path of the sheet conveyed in a state of being heat-sealed in plural sheets at the adhesive portion ( 58 and the spur gears 60 and 61 are respectively fixed to the shafts 59 of the upper and lower intermediate rollers 26 and 29, and idle gears 63 are provided between the spur gears, respectively. The driving force of the lower adhesive applying roller is transmitted to the upper and lower middle rollers, and the grooves 62 are continuously formed on the outer circumferential surfaces of the upper and lower adhesive applying rollers 23 and 24, and at the same time the rotation of the adhesive applying roller is performed. This is done by setting the gear ratio faster than the number of revolutions of the middle roller.

Description

Adhesive coating apparatus of polystyrene sheet adhesive

The present invention relates to a polystyrene sheet adhesive machine for adhering paper on both sides in a process of thermally bonding a plurality of polystyrene sheets and then transporting the thermally fused sheet, and more specifically, to prevent the intermediate roller applying the adhesive from idling. In addition, the present invention relates to an adhesive coating device for a polystyrene sheet adhesive, which allows the adhesive to be uniformly coated on the outer circumferential surface of the upper and lower adhesive coating rollers.

Generally, polystyrene is shipped in the form of a roll on bobbins in the state of primary foaming, and the sheet shipped is thin so that it can be used for stationery, such as the back plate of a frame or the inside of an album cover. Since there is no use, a plurality of sheets are heat-sealed to have a predetermined thickness according to the use thereof, and then cut into a predetermined size.

The sheet is light in weight when printed on the attached paper by attaching paper on both sides, so it is widely used in advertising panels, commercial graphic displays, photo and painting sites, model making, exhibition panels, stage backdrops, and visual devices. It is being used and the demand is increasing.

1 is a schematic view showing an adhesive coating device developed by the applicant and filed and registered in Korean Patent No. 1999-29579, and FIG. 2 is a schematic view showing the upper and lower adhesive coating parts, and a plurality of sheets are heat-sealed in the adhesive part 6. The upper and lower adhesive application units 18 and 19 are provided to apply the water-soluble adhesive 17 on both sides of the sheet on the conveying path of the sheet 1 to be transferred to the sheet 1, and the upper and lower adhesive application units 18 are provided. 19 is a tank 20 containing the water-soluble adhesive 17 and the water-soluble adhesive 17 contained in the tank through the supply pipes 21 and 22 to the upper and lower adhesive application rollers 23 and 24. A pump 25 for supplying, a discharge pipe 27 for supplying the water-soluble adhesive supplied through the supply pipe 21 between the upper adhesive applying roller 23 and the intermediate roller 26 and the lower adhesive applying roller 24. Water-soluble adhesive which is located at the bottom of the feed through the supply pipe 22 It is 17 constitutes a hopper 28 which is contained, water-soluble adhesive while rotating while submerged in a water-soluble adhesive in the hopper to the intermediate roller 29, which is buried in the lower adhesive applying rollers (24).

The discharge pipe 27 for supplying the water-soluble adhesive 17 supplied through the supply pipe 21 between the upper adhesive applying roller 23 and the intermediate roller 26 is in the form of a pipe and is spaced at a predetermined interval on the bottom of the discharge pipe. The hole 27a for discharging the water-soluble adhesive 17 is formed.

The water-soluble adhesive 17 is supplied onto the supply pipes 21 and 22 for supplying the water-soluble adhesive 17 in the tank 20 between the upper and lower adhesive applying rollers 23 and 24 and the intermediate rollers 26 and 29. Valves 30 and 31 are provided to control the supply of water, and the outer circumferential surface of the tank 20 in which the water-soluble adhesive 17 is contained is a heater for heating the water-soluble adhesive 17 to room temperature in winter or the like when the temperature of the outside air is low ( 32).

In addition, one side of the paper adhesive portion 9 provided on one side of the upper and lower adhesive coating portions 18, 19 is dried on the adhesive after the paper 8 is adhered to both sides of the sheet 1 at the paper adhesive portion, respectively. A mold part 33 is provided to correct it by being heated to about 70 ° C., which is lower than the temperature, so as not to be deformed. ) Is installed in multiple stages.

Accordingly, the pump 25 in the tank 20 is driven while the sheets 1 of the plurality of sheets 1 are heat-sealed in the adhesive part 6 and then transferred to the paper adhesive part 9 to supply the water-soluble adhesive 17 contained in the tank. When the inner rollers 26 and 29 are in contact with the upper and lower adhesive applying rollers 23 and 24, respectively, they are supplied to the inside of the discharge pipe 27 and the hopper 28 through the 21 and 22, respectively. Since it is rotated, the water-soluble adhesive 17 is buried in the upper and lower adhesive application rollers 23 and 24.

When the water-soluble adhesive 17 is applied to the upper surface of the sheet 1 by the above-described operation, the water-soluble adhesive is rotated while the intermediate roller 29 in the hopper 28 is locked to the water-soluble adhesive 17. Since it is buried in the application roller 24, the water-soluble adhesive 17 is uniformly applied to the bottom surface of the sheet 1, and is transferred to the paper bonding portion 9 side.

In this state, when the paper 8, which is not coated with the adhesive on the adhesive surface with the sheet 1, from the upper and lower paper supply parts 10 and 11, is supplied between the rollers 35 of the paper adhesive part 9, the paper is separated into one sheet. Since the pair of rollers 35 are pressed on both sides of the sheet 1 to which the water-soluble adhesive 17 is applied, the paper 8 is pressure-bonded to both sides of the sheet 1.

In this way, when the paper 8 is continuously adhered to the sheet 1 and reaches the side of the shaping part 33, a heater (not shown) is provided inside the roller 36 of the shaping part 33. Since the roller 36 is heated to about 70 ° C., the paper 8 adhered to both sides of the sheet 1 is preliminarily dried in a flat state while passing between the plurality of rollers.

After that, when the sheet 1 is continuously conveyed and reaches the drying unit provided in multiple stages, the sheet 1 is heated to about 80 ° C. slightly higher than the shaping unit 33 in the first drying unit 34a and then in the second drying unit 34b. The water-soluble adhesive applied to the sheet 1 is completely dried by heating at about 90 ° C, at 100 ° C in the third drying part 34c, and at about 110 ° C in the fourth drying part 34d.

However, such a conventional adhesive coating device is a relatively inexpensive water-soluble adhesive on both sides of the sheet by applying a polysol or acrylic resin to adhere to the general paper to produce a variety of sheets, as well as a water-soluble adhesive at a much lower price than hot melt It is possible to reduce the cost according to the production of sheet, but in the process of adhering the sheet and paper, temporarily driving the machine or finishing work, the upper adhesive coating roller and intermediate It was inefficient because the adhesive that had been supplied between the rollers and into the hopper was completely drained to the tank side and then cleaned to remove the upper and lower adhesive application rollers, the intermediate roller, and the adhesive on the hopper.

In addition, the conventional adhesive application portion is fixedly installed in the main body, there is also a problem that maintenance work, work for removing the adhesive is very cumbersome.

In view of the above problems, the applicant has developed and applied for patent application No. 2001-58808 to prevent the adhesive from solidifying without draining the adhesive from the adhesive coating portion to the tank even when the driving of the device is temporarily stopped. .

Figure 3 is a perspective view showing another embodiment of the conventional adhesive coating device, Figures 4a and 4b is a front view of Figure 3 and Figure 5a is a state diagram in which the drive gear installed on the rotating shaft is spaced apart from the helical gear, upper, lower adhesive coating portion ( 18, 19, a pair of guide rods 37 are fixedly installed on the support frame 36, and upper and lower adhesive application rollers 23, 24 and intermediate to apply adhesive to both sides of the sheet 1, respectively. The rollers 26 and 29 are attached to the lower mounting plates 38 and 39 that are fitted to the guide rods in a liftable manner.

The cylinder 44 is fixed to the upper mounting plate 38, the rod 44a of the cylinder is fixed to the lower mounting plate 39, and the upper and lower mounting plates 38 and 39 are capable of lifting up and down. Upper and lower stoppers 45 and 46 are fixed to the fitted guide rod 37 to control the raising and lowering of the lower mounting plate 39 in accordance with the driving of the cylinder 44.

On the other hand, one side of the support frame 36 is provided with a rotating shaft 47 vertically, as shown in Figure 5a and a driving means 48, such as a motor, is provided on the upper portion of the support frame, the shaft and the rotating shaft of the drive means Bevel gears 49 and 50 are installed in engagement with each other, and the rotating shaft 47 is configured to rotate in accordance with the driving of the driving means 48.

The drive gears 51 and 52 are fixed to the upper and lower portions of the rotating shaft 47 rotating according to the driving means 48, and the upper and lower adhesive application rollers 23 and 24 have cylinders 44. As the upper and lower adhesive application rollers 23 and 24 are positioned at the upper and lower dead centers by driving the upper and lower adhesive application rollers, the upper and lower adhesive application rollers 23 and 24 rotate to engage with the drive gears 51 and 52. The helical gears 53 and 54 are fixed, and coil springs 55 and upper and lower portions of the drive gears 51 and 52 which are installed to be engaged with the helical gears 53 and 54 on the rotary shaft 47. 56) is installed.

Therefore, in the process of applying the adhesive on both sides of the sheet 1, the rod 44a of the cylinder 44 is pulled as much as possible, so that the upper and lower mounting plates 38 and 39 are close to each other as shown in FIG. 39 is in close contact with the upper stopper 45 and the power source of the driving means 48 is turned off, so that the rotation shaft 47 is not rotated, so that upper and lower adhesives are applied to the drive gears 51 and 52 provided on the rotation shaft. The helical gears 53 and 54 fixed to the rollers 23 and 24 are kept spaced apart from each other as shown in FIG. 5A.

In such a state, when the device is temporarily stopped for maintenance, or when the device is to be stopped by completing a day's work, the rotating shaft 47 is rotated by applying power to the driving means 48. At the same time, when the rod 44a is pulled out as much as possible by applying pneumatic pressure to the cylinder 44, only the lower mounting plate 39 fixed to the rod descends while the upper mounting plate 38 is stopped.

Accordingly, the lower mounting plate 39 reaches the bottom dead center of the stopper 46 fixed to the lower portion of the guide rod 37. In this state, the pneumatic pressure is continuously applied to the cylinder 44, thereby providing a rod 44a. ), The upper mounting plate 38, on which the cylinder 44 is installed, rises to the top dead center along the guide rod 37, and then the driving of the cylinder 44 is stopped.

That is, the upper and lower adhesive application rollers 23 and 24 are spaced apart from the sheet without removing the sheet 1 from the adhesive.

When the upper and lower mounting plates 38 and 39 rise to the top dead center and the bottom dead center by the above-described operation, the upper and lower mounting plates 38 and 39 are applied to the upper and lower adhesive applying rollers 23 and 24. Since the helical gears 53 and 54 are fixed to one side of the upper and lower adhesive applying rollers, the helical gears are engaged with the driving gears 51 and 52 installed on the rotary shaft 47. The upper and lower adhesive application rollers 23 and 24 are idling in a state where the upper and lower mounting plates 38 and 39 are located at the top dead center and the bottom dead center.

Thus, even while the upper and lower adhesive application rollers 23 and 24 are idling, the adhesive 17 is driven by the pump 25 between the upper adhesive application roller 23 and the middle roller 26 and the hopper 28. Since it is continuously supplied to the inside of the tank and drained to the tank side, the phenomenon that the adhesive solidifies without removing the adhesive from the adhesive coating part is prevented in advance.

However, such a conventional adhesive coating device also generated a number of problems as follows.

First, in the process of applying the adhesive on both sides of the sheet, the upper and lower middle rollers are rotated by the frictional force with the upper and lower adhesive applying rollers. When the rollers do not rotate together with the rollers, they are idling, and thus, the middle roller does not uniformly spread the adhesive on the adhesive coating roller, thereby causing a poor coating.

Second, since the surface of the adhesive application roller has a flat cylindrical shape, there is a limit to applying the adhesive to the surface of the sheet to a certain thickness, thereby causing a phenomenon that the paper adhered to the sheet falls.

Third, since the middle roller rotates by the frictional force with the adhesive applying roller, the adhesive does not scrape off the adhesive on the outer circumference of the middle roller, and only rotates in contact with each other. This took a long time.

The present invention has been made in order to solve such a conventional problem, while continuously forming a fine groove on the outer circumferential surface of the adhesive coating roller and gear bites the adhesive coating roller and the intermediate roller rotated by the friction with the sheet, the adhesive coating The purpose is to set the rotational speed of the roller faster than the rotational speed of the middle roller so that the adhesive coating roller scrapes off the adhesive stuck in the middle roller so that the adhesive can be uniformly accommodated in the groove of the adhesive coating roller.

According to an aspect of the present invention for achieving the above object, a pair of guide rods fixed to the support frame of the upper, lower adhesive coating portion is installed on the conveying path of the sheet conveyed in a plurality of sheets heat-sealed in the adhesive portion, The lower adhesive applying roller and the middle roller are respectively installed and fitted to the guide rod so that they can be lifted up and down, the cylinder fixed to the upper mounting plate and the rod fixed to the lower mounting plate, and fixed to the guide rod. An upper and lower stopper for controlling the raising and lowering of the lower mounting plate according to the driving of the cylinder, a rotating shaft installed perpendicular to the support frame and rotating according to the driving of the driving means, and a driving gear fixed to the rotating shaft; As the upper and lower adhesive application rollers are fixed to the upper and lower adhesive application rollers and the upper and lower adhesive application rollers are positioned at the upper and lower dead centers. In the adhesive applying device of the polystyrene sheet adhesive machine consisting of a helical gear that rotates the upper and lower adhesive application rollers to rotate, the spur gears are fixed to the shafts of the upper and lower adhesive application rollers and the shafts of the upper and lower intermediate rollers, respectively. The idle gears are installed between the spur gears so that the driving force of the upper and lower adhesive applying rollers is transmitted to the upper and lower middle rollers, and fine grooves are continuously formed on the outer peripheral surfaces of the upper and lower adhesive applying rollers. An adhesive applying device of a polystyrene sheet adhesive is provided.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 6 to 8 as an embodiment.

Figure 6 is a perspective view showing the configuration of the present invention, Figure 7 is a schematic diagram showing the power transmission process of the present invention and Figure 8 is an enlarged view showing a state in which the adhesive coating roller and the intermediate roller is connected, the conventional configuration of the present invention The same parts as the configuration will be omitted and the same reference numerals will be given.

According to the present invention, the spur gears 60 and 61 are fixed to the shaft 58 of the upper and lower adhesive applying rollers 23 and 24 and the shaft 59 of the upper and lower intermediate rollers 26 and 29, respectively. The idle gears 63 are respectively provided between the spur gears, and the driving force of the upper and lower adhesive application rollers 23 and 24 is rotated by the conveying force of the seat 1, and the upper and lower intermediate rollers are rotated by the feed force of the seat 1. (26) and (29) so that they rotate together.

Accordingly, the slip phenomenon caused by the slippery adhesive 17 can be prevented in advance between the adhesive applying rollers 23 and 24 and the intermediate rollers 26 and 29, so that the adhesive is evenly spread on the adhesive applying roller. I can give it.

Further, fine grooves 62 are continuously formed on the outer circumferential surfaces of the upper and lower adhesive applying rollers 23 and 24, and the rotation speeds of the upper and lower adhesive applying rollers 23 and 24 are upper and lower. The gear ratio is set faster than the rotation speed of the intermediate rollers (26) and (29). This is because the fine grooves (62) are continuously formed on the outer circumferential surface of the adhesive coating rollers (23) and (24). If the rotational speed of the middle roller is set to be the same, the adhesive that is stuck on the outer circumferential surface of the middle roller (26) (29) formed of rubber material is put on the outer circumferential surface of the adhesive coating roller (23) (24), and they are separated from each other. This is to prevent the phenomenon in which the adhesive 17 in the groove 62 of the adhesive applying roller re-emerges in the intermediate rollers 26 and 29 made of rubber material.

That is, the rotation speed of the adhesive application rollers 23 and 24 is set faster than the rotation speed of the intermediate rollers 26 and 29 so that the adhesive application rollers 23 and 24 are outer peripheral surfaces of the intermediate rollers 26 and 29. By scraping off the adhesive on the surface, it is possible to increase the adhesion efficiency.

At this time, it is more preferable to set the size of the groove 62 formed on the outer circumferential surface of the upper and lower adhesive application rollers 23 and 24 to 80 to 120 mesh.

If the size of the grooves 62 is 80 mesh or less, the amount of the adhesive squeezed on the sheet 1 may be less, and the adhesive strength may be lowered. On the contrary, when the grooves 62 are larger than 120 mesh, the adhesive may flow out of the grooves 62. to be.

9 is a longitudinal cross-sectional view with the lower adhesive application roller installed in the hopper, with a portion of the intermediate roller 29 being immersed in the adhesive 17 in the hopper 28 and the lower adhesive application roller 24 from the adhesive. Unlike the conventional adhesive application apparatus, which is spaced apart and the intermediate roller 29 immerses the adhesive 17 in the hopper 28 to the lower adhesive application roller 24, a part of the lower adhesive application roller 24 is a hopper ( The intermediate roller 29 is installed so as to be immersed in the adhesive 17 in the 28 and the intermediate roller 29 is spaced apart from the adhesive so that the lower adhesive applying roller 24 removes the adhesive 17 in the hopper 28. A part of the adhesive stuck to the lower adhesive application roller 24 is removed.

This is to make effective use of the space between the main body 57 and the lower adhesive application roller 24 by allowing the adhesive 17 to fold directly on the outer circumferential surface of the lower adhesive application roller 24.

Referring to the operation of the present invention configured as described above is as follows.

First, the rod 44a of the cylinder 44 is pulled as far as possible, that is, in the process of applying the adhesive to both sides of the sheet 1, the upper and lower adhesive applying rollers 23 and 24 are applied by the conveying force of the sheet 1. Since the rotational force of the adhesive coating roller is transmitted to the intermediate rollers 26 and 29 by the spur gears 60 and 61, the intermediate roller is the adhesive coating roller 23 and 24. Will rotate in the opposite direction of rotation.

As such, when the intermediate rollers 26 and 29 are rotated in a direction opposite to the rotation direction of the adhesive application rollers 23 and 24 by the spur gears 60 and 61, the outer surface of the upper adhesive application roller 23 is formed. The upper middle roller 26 wipes off the adhesive 17 on the lower middle roller 29, and the adhesive on the lower middle roller 29 is applied to the outer circumferential surface of the lower adhesive applying roller 24. Since the adhesive application rollers 23 and 24 rotate faster than the intermediate rollers 26 and 29, the adhesive application rollers 23 and 24 scrape off the adhesive from the intermediate rollers 26 and 29. The adhesive is uniformly accommodated in the fine groove 62 formed on the outer circumferential surface of the (23) and (24).

In this state, when the adhesive application rollers 23 and 24 continue to rotate and come into contact with the sheet 1 being transported, the adhesive 17 contained in the groove 62 of the adhesive application rollers 23 and 24 becomes a sheet. Since the paper 8 is transferred to the surface of (1), the paper 8 being transferred adheres to the surface of the sheet 1.

On the other hand, when the adhesive is applied to the paper (8) while the adhesive 17 (19) and the adhesive (17) on both sides of the sheet (1) continuously, while the work is temporarily suspended, the driving means ( 48, the rotary shaft 47 is rotated by applying power to the cylinder 44, and pneumatic pressure is applied to the cylinder 44 to draw out the rod 44a as much as possible. Will be spaced apart.

At the same time, upper and lower adhesive application rollers 23 and 24 are rotatably installed on the upper and lower mounting plates 38 and 39, and helical gears 53 and 54 are provided on one side of the upper and lower adhesive application rollers. Since the helical gear is engaged with the drive gears 51 and 52 installed on the rotary shaft 47, the upper and lower mounting plates 38 and 39 are located at the top dead center and the bottom dead center. The adhesive application rollers 23 and 24 are idle, thereby preventing the adhesive from solidifying.

However, due to the end of the work, the adhesive in the upper adhesive application part and the adhesive 17 in the hopper 28 are completely drained and then the upper and lower adhesive application rollers 23 and 24 and the intermediate rollers 26 and 29 are applied. When the rollers are idling while continuously supplying water from the top to remove the adhesive stuck to the outer circumferential surface of the roller, the adhesive applying rollers 23 and 24 rotate faster than the intermediate rollers 26 and 29 and the intermediate rollers 26. Since the adhesive 17 stuck to the outer peripheral surface of (29) is scraped off, the adhesive stuck to the outer peripheral surface of each roller can be removed more quickly.

As described above, the present invention has several advantages as compared to the conventional adhesive coating device.

First, in the process of applying the adhesive to the outer circumferential surface of the adhesive application roller by the middle roller, the adhesive application roller scrapes off the adhesive on the middle roller, so that the adhesive efficiency is evenly spread on the sheet in the adhesive application process. In the cleaning process, the adhesive stuck to the middle roller is removed quickly, thus greatly reducing the time required for cleaning.

Second, fine grooves are continuously formed on the outer circumferential surface of the adhesive coating roller, so that the adhesives accommodated in the fine grooves are spread on the sheet, thereby greatly improving the adhesive efficiency of the paper.

Third, in the type in which the lower adhesive application roller is immersed in the adhesive in the hopper, the space between the narrow body and the lower adhesive application roller can be effectively utilized.

1 is a schematic view showing an embodiment of a conventional adhesive coating device

Figure 2 is a block diagram showing the upper, lower adhesive coating portion

Figure 3 is a perspective view showing another embodiment of the conventional adhesive coating device

4A and 4B are front views of FIG. 3;

Figure 4a is a state in which the adhesive coating roller to apply the adhesive on the sheet

4b is a state in which the adhesive application rollers are separated from each other by driving of a cylinder;

Figure 5a is a state in which the drive gear installed on the rotating shaft spaced apart from the helical gear

5b is a state in which a drive gear installed on the rotating shaft is connected to the helical gear

Figure 6 is a perspective view showing the configuration of the present invention

Figure 7 is a schematic diagram showing a power transmission process of the present invention

Figure 8 is an enlarged view showing a state in which the adhesive coating roller and the intermediate roller is connected

Figure 9 is a longitudinal cross-sectional view of the lower adhesive coating roller is installed in the hopper

Explanation of symbols for the main parts of the drawings

18: upper adhesive coating portion 19: lower adhesive coating portion

23: roller for applying the upper adhesive 24: roller for applying the lower adhesive

26: upper middle roller 29: lower middle roller

58, 59: shaft 60, 61: spur gear

62: home 63: children gear

Claims (3)

A pair of guide rods fixed to the support frame of the upper and lower adhesive applying units, and the upper and lower adhesive applying rollers and the intermediate rollers, respectively, are installed on the conveying path of the sheet conveyed in the state of being heat-sealed in plural sheets at the adhesive unit. The upper and lower mounting plates fitted to the rods and the upper mounting plate, the cylinder fixed to the upper mounting plate and the rod fixed to the lower mounting plate, and the guide rods are fixed to the lower mounting plate to raise and lower the cylinder according to the driving of the cylinder. The upper and lower stopper to be controlled, the rotary shaft is installed perpendicular to the support frame and rotates according to the drive of the drive means, the drive gear fixed on the rotary shaft, and the upper and lower adhesive application roller fixed to drive the cylinder As the upper and lower adhesive application rollers are positioned at the upper and lower dead centers, the upper and lower adhesive application rollers are engaged with the drive gears so that the upper and lower adhesive application rollers rotate. In the adhesive coating device of the polystyrene sheet adhesive machine consisting of a helical gear, the spur gears are fixed to the shafts of the upper and lower adhesive application rollers and the shafts of the upper and lower intermediate rollers, respectively, and the idle gear 63 is disposed between the spur gears. ), Respectively, so that the driving force of the upper and lower adhesive applying rollers is transmitted to the upper and lower middle rollers, and the adhesive of the polystyrene sheet adhesive machine is formed by continuously forming fine grooves on the outer circumferential surface of the upper and lower adhesive applying rollers. Coating device. The method of claim 1, And the gear ratio of the upper and lower adhesive rollers is set faster than the upper and lower intermediate rollers. The method of claim 1, Adhesive coating apparatus of the polystyrene sheet adhesive machine, characterized in that the groove formed on the outer circumferential surface of the upper, lower adhesive coating roller is 80-120mesh.