KR19980065058A - Continuous molding method and apparatus of foamed synthetic resin board - Google Patents

Abstract

The present invention relates to a method and apparatus for continuous molding of a foamed synthetic resin board material, and to pre-foamed to enable continuous molding of the foamed synthetic resin board material by pre-expanded granules Filling means for foaming by drying steam, and the continuous filling in the form of a plate to form a foamed synthetic resin sheet 100 and conveys the filling transport means (10), and the foamed synthetic resin foam material molded by the filling transport means (10) Steaming molding means 20 for steam molding 100, and a cutting device 30, such as a cutter for cutting the steamed synthetic resin board member 100 steamed through the steam molding means 20 to a predetermined size .

Therefore, the present invention is capable of continuously foaming a foamed insulating synthetic resin plate material, the foam granules of the upper and lower surfaces are maintained as intact particles, not cut state, the bonding strength is excellent, do not absorb moisture, such as water resistance On the other hand, it is easy to adjust the thickness and width according to the purpose of use is excellent in correspondence.

Description

Continuous molding method and apparatus of foamed synthetic resin board

The present invention relates to a continuous molding method and apparatus for a foamed synthetic resin plate material, and more particularly, to enable the continuous molding of the foamed synthetic resin plate material by pre-foamed granules.

In general, foamed synthetic resin plates, ie, polystyrene plates (commonly referred to as styropol) according to the bead method, generally include primary foamed prefoamed foam (EPS: Expandable Poly stylene) at a high temperature steam in a certain mold. After steam-foaming by molding the molded product is cut to a certain thickness so that the plate material is produced.

The foamed synthetic resin sheet produced by the bead method as described above is generally used as a heat insulating material for buildings, and its weight is light, its heat insulating ability is superior to that of concrete, and its price is low, so it is used for most building construction or packaging and cushioning materials. have.

However, the foamed synthetic resin plate material produced by the bead method as described above is a foam foam of the cut portion does not maintain an independent shape by cutting the pre-foamed granules to a certain size after steam foaming molding as the inner foamed ribs The bond strength is weak and the surface strength is weak, so it is easy to absorb moisture, there is a problem of weak water resistance.

In addition, the conventional method for manufacturing a plate by the bead method has a problem that the process is made discontinuously, the productivity is low, must be cut as a separate process and apparatus, and must be provided with a separate mold according to the specifications of the foamed synthetic resin plate material .

Accordingly, the present invention was created in order to solve the above problems, and to improve the bonding strength of the foam granules of the upper and lower surfaces as well as the continuous foam molding of the foamed synthetic resin plate material.

Particularly, the present invention foams the pre-foamed granules by distillation steam of 110 ° C. to 140 ° C., and fills the molding chamber with negative pressure to continuously form the plate-shaped foamed synthetic resin plate material and transfers the continuously molded foamed resin plate material. The steaming foaming process for steaming and molding the foamed synthetic resin plate material formed through the filling transporting process at a temperature of 70 ° C. to 120 ° C. for a predetermined time, and the foamed synthetic resin board material steamed through the steaming molding process. It consists of a cutting process that cuts to a certain size.

Figure 1 is a side cross-sectional view showing an embodiment according to the present invention

Figure 2 is a perspective view showing an embodiment of the filling transport means according to the present invention

Figure 3 of the filling transfer means and steam forming means according to the invention

Side cross-sectional view showing another embodiment

Figure 4 is a side cross-sectional view showing an embodiment of the coating means according to the invention

Figure 5 is a side cross-sectional view showing an embodiment of the cooling means according to the invention

Figure 6 is a side cross-sectional view showing another embodiment of the cooling means according to the present invention.

Figure 7 is a perspective view showing an embodiment of the uneven forming means according to the invention

8 is a perspective view showing another embodiment of the uneven forming means according to the present invention

9 is a perspective view showing an embodiment of a printing means according to the invention

Explanation of symbols for main parts of the drawings

10: filling transfer means

11: foam lip supply pipe 12: dry steam supply pipe

13: molding room

13a: upper molding plate 13b: molding chamber side plate

14: transfer means

14a: drive roller 14b: transfer belt 14b ': exhaust hole

14c: support plate 14d: cleaner

15: exhaust

20: steam forming means

21: steam forming room 21a: pipeline 24: transfer means

30: cutting device 40: lamination means

50: cooling device 51: cooling chamber 51a: pipeline 52: air nozzle

60: uneven molding means 61: re roller roller 62: uneven roller

70: printing means 71: printing roller 72: ink supply unit

80: coating means

100: foamed synthetic resin plate material 100a: pre-foamed granules

Hereinafter, described in detail by the accompanying drawings as follows.

1 is a side cross-sectional view showing an embodiment according to the present invention, Figure 2 is a perspective view showing an embodiment of the filling transport means according to the present invention, the present invention is a pre-foamed granules steam of 110 ℃ to 140 ℃ It is formed by foaming and continuous filling in the form of a plate to form a foamed synthetic resin sheet 100 and the filling transport means 10 for conveying, and the foamed synthetic resin plate 100 foamed by the filling transport means (10) Steaming molding means 20 for steam molding at a temperature of 70 ℃ to 120 ℃, and a cutting device such as a cutter for cutting the steam synthetic foamed resin plate material 100 formed by the steam molding means 20 to a predetermined size (30) ).

Here, the filling transfer means 10 is a foamed lip supply pipe (11) for supplying the pre-foamed granules (100a) of the hopper and the pre-foamed granules (100a) supplied through the foamed lip supply pipe (11) to be foam molded Filling space so that the dry distillation steam supply pipe 12 for supplying distilled steam at 110 ° C to 140 ° C and the prefoamed granules 100a foamed by dry distillation steam as described above are molded into a plate-shaped foamed synthetic resin plate material 100. Forming chamber 13 to form a, and the conveying means 14 for conveying the molding of the foamed synthetic resin plate material 100 molded in the molding chamber 13 is made continuously, the molding chamber 13 Is composed of an upper molding plate 13a having an exhaust part 15 for evacuating air for negative pressure formation, and a left and right molding side plate 13b, and the conveying means 14 is driven by ordinary driving means. It is wound around the driving roller 14a and the driving roller 14a that are driven and formed on the surface. A plurality of exhaust holes 14b ′ for exhausting air from the mold chamber 13 support the perforated conveying belt 14b and the conveying belt 14b so as not to sag, and provide air for negative pressure formation of the forming chamber 13. It consists of the support plate 14c provided with the exhaust part 15 which exhausts.

The steam forming means 20 forms a passage through which the pre-foamed granules 100a are foamed and formed, and the foamed synthetic resin board 100 passes and is heated to a temperature of 70 ° C. to 120 ° C. by heating means. (21), wherein the heating means is to form a conduit 21a through which the heat medium oil is circulated in the steam forming chamber, or to form the steam forming chamber 21 and the heater integrally.

Hereinafter, another embodiment of the present invention will be described.

In another embodiment of the present invention, as shown in Figure 3, the upper side of the molding chamber 13 also has a conveying means 14 configured in the same way as the lower side pre-expanded granules (100a) is foamed and filled is molded The foamed synthetic resin plate material 100 is to be made smoothly.

And, the upper and lower of the steam forming means 20 is provided with a conveying means 24 made of a conveying belt driven by the usual drive means, the conveying of the foamed synthetic resin plate material 100 is foamed in the steam forming process It is to facilitate, the middle-aged molding room 13 is preferably made of an aluminum material for easy heat transfer.

Meanwhile, as illustrated in FIG. 2, the left and right molding chambers 13b of the filling transfer means 10 and the steam forming means 20 are easily detached and the left and right products are produced by being able to move left and right. When molding a thicker foamed synthetic resin sheet 100 to replace the left, right molded seal side plate (13b) to the size to be produced, if you want to mold a wide foamed synthetic resin sheet 100 than the product to produce In the left, right side molding side plate 13b is adjusted to match the width of the product to be produced by retreating.

In addition, the transfer means 14 provided in the filling transfer means 10 and the steam forming means 20 is provided with a cleaner 14d in contact with the transfer belt 14b, the cleaner 14b is a scraper or brush It is made in the form it is possible to remove the foam lip remaining in the conveying belt (14b).

In another embodiment of the present invention as shown in Figure 4 by spraying the coating material on the upper and lower surfaces of the foamed synthetic resin plate 100 foamed to the rear of the steam molding means 20 by coating the foamed synthetic resin ( 100) is provided with a coating means 80 to improve the bonding strength of the upper and lower surfaces, the foam strength of the foamed synthetic resin plate material 100 is improved, the bonding strength of the foam granules on the upper and lower surfaces is improved and the water resistance is prevented to improve the water resistance .

In another embodiment of the present invention, as shown in Figure 1, the upper and lower deposition film according to the purpose of use of the foamed synthetic resin plate material 100 is foamed between the steam forming means 20 and the cutting device 30 , Having a laminating means 40 for laminating a synthetic resin film, a synthetic resin sheet, an aluminum film, a fabric sheet, and the like, and may be used for various purposes.

In another embodiment of the present invention as shown in Figure 5 and 6 cooling means 50 for cooling the upper and lower surfaces of the foamed synthetic resin plate material 100 is foamed to the rear of the steam forming means (20) The cooling means 50 is formed of a cooling chamber 51 integrally formed with a conduit 51a through which cooling water is circulated, or air cooling is provided on the upper and lower surfaces of the foamed synthetic resin plate 100. By cooling the upper and lower surfaces of the foamed synthetic resin plate material 100 passing through the steaming molding chamber 21 of the steam forming means 20, the upper and lower structures are densely formed. Will be.

As another embodiment of the present invention as shown in Fig. 7 and 8 to the concave-convex forming means 60 for forming concave-convex on the upper and lower surfaces of the foamed synthetic resin plate material 100 foamed in front of the cutting device 30 In order to mold the ribs on the upper and lower surfaces of the foamed synthetic resin plate 100 according to the purpose of use, the uneven molding means 60 is provided with a rib roller 61 up and down, and to form simple unevenness. It is provided with an uneven roller 62 up and down, and if you want to imprint a special pattern is provided with a patterned roller up and down, the roller is heated to a constant temperature by heating means such as steam, heating oil or heater will be. Since various types of special rollers are provided as described above, various kinds of products can be produced according to the purpose of use, and after completion of the stamping work by the special rollers as described above, a separate cooling roller for stabilization of the surface of the synthetic resin sheet 100 is completed. It is preferable to have a.

In another embodiment of the present invention, as shown in Figure 9 and the printing roller 71 to be able to print a picture or text on the upper and lower surfaces of the foamed synthetic resin plate material 100 molded in front of the cutting device 30 and It is provided with a printing means 70 composed of an ink supply unit 72, it is possible to print a trademark on the upper and lower surfaces of the foamed molded foamed resin plate 100 can be widely used for the trademark of the production company, and also various pictures or By printing patterns, commerciality is improved.

Hereinafter, the production process of the foamed synthetic resin plate material according to the present invention.

As described above, the present invention, which is composed of the filling transfer means 10, the steam forming means 20, and the cutting device 30, has a negative pressure caused by the discharge of the air from the exhaust part 15 before the work is carried out. That is, the opening of the forming chamber 13 is provided with a blocking material having the same size as the cross-sectional area of the forming chamber 13 to act as the foam lip supply pipe 11, and then the production operation is performed.

When the device is operated in the state of preparation as described above, the pre-expanded foam 100a is supplied through the foam lip supply pipe 11, and the molding chamber 13 is exhausted through the exhaust part 15, and the conveyance belt 14b is provided. The blocking material is moved to the inside of the molding chamber by the negative pressure is formed in the molding chamber 13 from the time when the blocking material passes through the exhaust part 15, and is supplied through the foam lip supply pipe 11 by the negative pressure The prefoamed granules 100a are filled and molded into the plate-shaped foamed synthetic resin plate material 100 in the vicinity of the exhaust part 15. At this time, the filled pre-foaming (100a) is foamed and filled by the distillation steam of 110 ℃ to 140 ℃ supplied through the distillation steam supply pipe 12.

In addition, the foamed synthetic resin plate material 100 formed in a plate shape by the pre-expanded granules 100a foamed in the vicinity of the exhaust part 15 is moved by the conveyance belt 14b, so that it is continuously near the exhaust part 15. The foamed synthetic resin plate material 100 is to be molded.

Foamed synthetic resin plate material 100 formed in the molding chamber 13 of the filling transfer means 10 is provided with a heating means such as a heating means made of a conduit 21a through which the heat medium oil is circulated or a heating means such as a heater or a heater by steam heat, Steam is formed by the temperature of 70 ℃ to 120 ℃ while passing through the steam forming chamber 21 formed in the length.

The foamed synthetic resin plate material 100 which is steamed and discharged from the steaming molding room 21 of the steaming molding means 20 is cut to a certain length by a cutting device 30 such as a cutter to be a finished product.

On the other hand, the coating means 80 and the deposition film, synthetic resin film, synthetic resin sheet, aluminum film, fabric, etc. to coat the binder on the upper and lower surfaces of the foamed synthetic resin plate material 100, as introduced through another embodiment Since the bonding means 40, the concave-convex forming means 60 and the printing means 70 to be bonded is to produce a foamed synthetic resin plate material 100 of various uses.

Therefore, the present invention can be a continuous foam molding of the foam insulation board, the foam lip of the upper, lower surface maintains the particle state, not the cutting state, the bonding strength is excellent, depending on the purpose of use, the control of thickness and width It is very useful because it is easy and its correspondence is excellent.

Claims (10)

The pre-expanded foam is foamed by dry steam at 110 ° C. to 140 ° C., and filled into a molding chamber by negative pressure to continuously form a plate-shaped foamed resin board and to convey the continuously molded foamed resin board. , Steaming foaming process for steam molding the foamed synthetic resin plate material formed by the filling transfer process at a temperature of 70 ℃ ~ 120 ℃ for a certain time, and A continuous molding method of the foamed synthetic resin plate material consisting of a cutting process for cutting the steamed molded foamed resin plate material to a certain size through the steaming molding process. The pre-expanded granules are foamed by dry steam at 110 ° C. to 140 ° C., and are continuously filled in a plate shape to form a foamed synthetic resin plate material 100 and to be transported. Steam-forming means 20 for steam-forming the foamed synthetic resin plate 100 molded by foaming at a temperature of 70 ℃ to 120 ℃, and the foamed synthetic resin board 100 steam-molded through the steam molding means (20) Consists of a cutting device 30, such as a cutter for cutting to a predetermined size, the steam forming means 20 is a preliminary foaming means (100a) forming a passage through which the foamed synthetic resin plate material 100 is foamed molded and heating means A continuous molding apparatus for a foamed synthetic resin board member formed by forming a steam forming chamber (21) heated to a temperature of 70 캜 to 120 캜. The method of claim 2, wherein the filling transfer means 10 is a foamed lip supply pipe 11 for supplying the pre-foamed granules (100a) of the hopper, and the pre-foamed granules (100a) supplied through the foamed lip supply pipe (11) The dry distillation steam supply pipe (12) for supplying dry distillation steam to foam molding, and the pre-foaming granules (100a) foamed by dry distillation steam as described above to form a filling space to be molded into a foam-like foamed resin plate material 100 And a conveying means 14 for conveying the molding chamber 13 and the molding of the foamed synthetic resin board member 100 foamed in the molding chamber 13 continuously. The molding chamber 13 is composed of an upper molding plate 13a having an exhaust part 15 for evacuating air for negative pressure formation, and a left and right molding chamber side plate 13b. The conveying belt 14b wound around the driving roller 14a and the driving roller 14a driven by a general driving means and having a plurality of exhaust holes 14b 'formed on the surface thereof for venting the air in the forming chamber 13. ) And the support belt (14b) is supported by the conveying belt (14b) so as not to sag and having an exhaust portion (15) for evacuating air to form a negative pressure of the molding chamber (13) Continuous molding device. 4. The conveying means of claim 3, further comprising a conveying means (14) formed on the upper side of the shaping chamber (13), the same as the lower side, and driven by ordinary driving means on the upper and lower sides of the steam forming means (20). A continuous molding apparatus for a foamed synthetic resin sheet, characterized in that (24) is provided. The method of claim 3, wherein the left and right molding chamber side plate (13b) of the filling transfer means (10) and steam forming means (20) is easily detached and the left and right movement of the foamed synthetic resin plate material, characterized in that Continuous molding device. The coating means of claim 2, 3, 4 and 5, by coating the binder on the upper and lower surfaces of the foamed synthetic resin insulating material 100 foamed in the rear of the steam forming means 20 to improve the bonding strength and increase the plastering effect A continuous molding apparatus for a foamed synthetic resin plate material, characterized in that it is provided with (80). Claims 2, 3, 4, 5 and 6, the vapor deposition film, aluminum film, fabric sheet, etc. on the upper and lower surfaces of the foamed synthetic resin plate material 100 is foamed between the steam forming means 20 and the cutting device 30 A continuous molding apparatus for a foamed synthetic resin sheet, characterized in that it comprises a laminating means (40) to be laminated. Claim 2 and 3, 4, 5, 6 and 7, characterized in that it is provided with a cooling means (50) for cooling the upper and lower surfaces of the foamed synthetic resin plate material 100 is foamed behind the steam forming means (20) Continuous molding apparatus for foamed synthetic resin sheet material. Claims 2 and 3, 4, 5, 6, 7 and 8, provided with uneven forming means 60 for forming the irregularities on the upper and lower surfaces of the foamed synthetic resin plate member 100 foamed in front of the cutting device 30 Continuous molding apparatus for a foamed synthetic resin plate material characterized in that. According to claim 2 and 3, 4, 5, 6, 7 and 8, the printing means 70 to print a picture or text on the upper and lower surfaces of the foamed synthetic resin plate material 100 molded in front of the cutting device 30 Continuous molding apparatus of a foamed synthetic resin plate material comprising the.