KR101430871B1 - Apparatus for Polymer Foam Board Plate and method thereof - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a foamed board configured to include a high frequency unit (20) that has a high-frequency pressing unit (21) and a high-frequency base roll (22) for high-frequency heating of a combination surface site of paper (9) to be combined with a foamed board base plate (2); a preheating unit (30) that vertically separates high-frequency treatment paper (9-2) which is high frequency-heated by the high frequency unit (20) and the foamed board base plate (2) for preheating at the same time; and a heating roll (10) that performs a heating and pressing operation on the preheated foamed board base plate (2-4) and the high-frequency treatment paper (9-2) passed through the preheating unit (30) for combination. The high frequency unit (20) has a high frequency unit housing (23) that has an inlet and an outlet for allowing the paper (9) to pass, an exhaust duct (24) that discharges smoke and exhaust gas which are generated in the high-frequency pressing unit (21), an encoder (25) that determines on transport in interworking with a rotary shaft of the high-frequency base roll (22), and a power transmission means (26) that transmits power of the high-frequency base roll (22) to the encoder (25).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for manufacturing a foamed foam board,

The present invention relates to an apparatus and a method for manufacturing a foamed foam board, in which a paper attached to a foamed foam board is subjected to high-frequency treatment without causing fires and environmental pollution, and a high-frequency processed paper and a foamed foam board are preheated simultaneously, The present invention relates to a foam board board manufacturing apparatus and a manufacturing method thereof, which improve adhesion to paper and smooth the surface of paper.

Extruded polystyrene foam boards have been used extensively as insulation materials for general houses as well as for other structures because they can be manufactured continuously and effectively and have various advantages (for example, heat insulation, light weight, low absorption and workability).

The extruded polystyrene resin foam board mixes and melts the polystyrene resin, the foam board and other additives in the cylinder of the extruder, extrudes the resulting molten mixture from the high pressure region to the low pressure region through the extrusion die of the extruder, And then passed through a molding apparatus while being foamed. However, the extruded foam board thus obtained has a disadvantage in that the degree of foaming at the cross section perpendicular to the extrusion direction is not uniform, and the density distribution and the mechanical strength distribution of the foam board are uneven. This is because the temperature of the extruded resin mixture is so high that the formation of the extruded resin mixture is poor, so that the extruded resin is molded in a molding apparatus while cooling it, and the surface of the extrudate is cooled more rapidly than the inside of the extrudate. Therefore, the density of the surface portion is high and the density of the inside portion is low. Furthermore, cooling the extruded resin mixture having a high temperature by the molding apparatus suppresses the overall foaming of the mixture, thereby adversely affecting the desired density of the extruded foam board.

Therefore, a process has been proposed in which the extrudate is reheated after foaming and cooling, or is continuously fed to the atmosphere with a vacuum device or a vapor having a large heat capacity and a liquid at room temperature. However, the foam board manufactured according to such a process still has a nonuniform density and mechanical strength in a cross section perpendicular to the extrusion direction of the foam board. Therefore, when used as a cut type of thick foam board, such a foam board should be used only in a single sheet form, since it is bent and even shrunk even at small temperature changes. This makes the productivity very low and increases the unit price.

A process of heating and foaming a surface of a foam sheet of a styrene resin foam sheet while extruding or immediately after extrusion and "cooling down" the surface immediately after extrusion or after leaving the surface of the foam board sheet is described in the literature (refer to Japanese Patent Application Laid- 99635]. This in the process cools the resin still having sufficient foaming function by cooling during extrusion of the resin or at the tip in the orifice after the resin has passed through the orifice. As a result, it is difficult to obtain a foam board having uniformity and low density because it is not heated up to the deep portion of the foam board when reheating the foamed foam board (i.e., foamed insulation material) once cooled. For example, a low density can be obtained when heating is carried out using a gas permeable high-polystyrene resin whose heat capacity is large and heat can easily permeate to the deep portion of the foam board, but as the permeability of the vapor is improved, And the density distribution of the deep part becomes uneven. Moreover, such vapor heating requires a condensate removal step of the residual foam board which results in a certain time or high unit price or heat loss. And the step of further heating the cooled foam board (i.e., insulation) is uneconomical and very disadvantageous in terms of the unit cost of the final product.

As shown in FIG. 1, the foam board 2 wound around the winding roll 1 is taken out through the drawing roll 3, and the preform is wound on the preheating part 4 and passes through a high frequency processing section 6 for heating the surface of the foaming board disk 2 by pressing the upper and lower surfaces of the foaming board disk 2 through the high frequency pressing section 5, The foam board original 2-1 is obtained by incorporating the paper 9 supplied through the paper roll 8 drawn out through the drawing roll 7 by heating of the heating roll 10. [ (5-1) is a base roll that applies a ground power to generate a high frequency when it is pressed with the high frequency pressing part (5).

However, in this method, since the foaming board 2 is heated by passing through the preheating portion 4 and the high frequency processing portion 6 and further foaming occurs, the thickness is uneven, and the paper is fed out from the paper roll 9 The surface of the high frequency treated foam board original plate 2-1 is partially cooled and the coalescence property with the paper is not constant, so that a non-uniform surface is obtained And there is a problem that the adhesiveness is lowered and the paper is easily separated.

It is an object of the present invention to solve the above-mentioned problems, and an object of the present invention is to provide a plywood board, which is not a foam board board, is subjected to high frequency treatment to avoid fire risk and environmental pollution, And a method for manufacturing the foamed foam board.

Another object of the present invention is to provide a foamed foam board manufacturing apparatus and method for manufacturing a foamed foam board which improves coalescence performance and eliminates defective coalescence by simultaneously preheating high frequency treated paper on a foam board and a top and bottom of a circular plate, Method.

To this end, the present invention is characterized in that an encoder for recognizing whether a paper is subjected to high frequency processing during high frequency processing of paper is added, smoke and generated pollution generated during high frequency operation are discharged to an exhaust duct, and the foamed foam board is preheated And the paper is made to have unevenness on the joining face through a separate high-frequency part, and then the foamed foam board original plate and the high-frequency treated paper are preheated simultaneously in the preheating part, and then they are bonded at the same time on the heating roll.

That is, the present invention relates to a foam board manufacturing apparatus in which a foam board is heat-

A high-frequency part having a high-frequency pressing part and a high-frequency base roll for high-frequency heating on a joining surface of a paper to be incorporated in a foam board;

A preheating unit for vertically and vertically heating the high frequency treated paper high in frequency at the high frequency part and the foam board original plate at the same time; And

And a heating roll that heats and presses the preheated foam board sheet and the high frequency treated paper that have passed through the preheating unit.

The present invention also relates to a method for manufacturing a foam board having a paper surface bonded to a surface by heat treating a foam board fabric,

A first process of high-frequency heat-treating the merged face portion of the foam board and the paper to be incorporated;

A second process of preheating simultaneously a high frequency treated paper and a foam board original to be combined with the high frequency treated paper while moving them horizontally up and down; And

And a third step of heating and coalescing the preheated foam board and the high-frequency treated paper in a heating roll. The present invention also provides a method of manufacturing a foamed foam board.

The styrene resin used as a raw material for the foam board in the present invention may be a homopolymer of a styrene derivative (e.g., styrene,? -Methylstyrene, dichlorostyrene, dimethylstyrene, t-butylstyrene, vinyltoluene) At least two copolymers or copolymers of a styrene derivative and a small amount of a compound capable of easily copolymerizing with other monomers (e.g., divinylbenzene, methyl methacrylate, acrylonitrile, butadiene). As the foaming agent used in the present invention, volatile organic foaming agents and thermally decomposable chemical foaming agents can be mentioned. Preferred foaming agents are volatile organic foaming agents (e.g., trichlorofluoromethane, dichlorodifluoromethane, dichlorofluoromethane, dichlorodifluoromethane, 1, 2, 3, 4, 1 ', 2-trichlorotrifluoroethane, 1,2-dichlorotetrafluoroethane, 1-chlorotrifluoroethane, 1-chloro-1,1'-difluoroethane, 1,1-difluoro Methylene chloride, ethylene chloride, propane, butane, butene, propylene, pentane, methanol, carbon dioxide, etc.). In addition, additives such as a flame retardant, a nucleating agent, an ultraviolet absorber, a lubricant, a resin modifier, and a colorant may be added as needed.

The mixing of the resin and the foaming agent and the extrusion thereof are the same as those used in the conventional production of the polystyrene resin. The blowing agent is mixed with the resin in the extruder before the resin is fed to the extruder. The resin mixture containing the foaming agent and the like is advanced in the extruder by screws while being propelled, compressed, melted and mixed, and is moved from the high pressure area to the low pressure area by passing the extrusion die (orifice).

As described above, according to the present invention, a paper for laminated paper, which is not a foam board, constituting a foam board, is subjected to high-frequency treatment and then joined together on a heating roll to smooth the combined surface and improve adhesion to paper.

The present invention also improves coalescence performance and eliminates defective coalescence by simultaneously preheating the foam board disk and the high frequency treated paper using a heating roll.

1 is a schematic view of a general foamed foam board manufacturing apparatus,
Fig. 2 is a configuration diagram of the present invention,
3 is a block diagram of the main part of the present invention.

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

FIG. 2 is a structural view of the present invention. FIG. 3 is a schematic view of a foam board manufacturing apparatus in which paper is combined with a surface of a foam board,

A high frequency pressing portion 21 which is incorporated in the foam board original plate 2 and which heats the cohesion face portion of the paper 9 provided in the paper roll 8 by high frequency and a high frequency pressing portion 21 which passes through the high frequency pressing portion 21 A high frequency section (20) having a high frequency base roll (22) for supporting the paper (9);

A preheating unit 30 for preheating high-frequency-treated high-frequency treated paper 9-2 and a foam board disk 2 at the same time in a horizontal up-and-down position; And

And a heating roll 10 which performs a heating pressing action to coalesce the preheated foam board plate 2-4 and the high frequency treated paper 9-2 which have passed through the preheating portion 30 at the same time.

The high frequency section 20 includes a high frequency housing 23 having an inlet and an outlet through which the paper 9 passes, an exhaust duct 24 for discharging smoke and exhaust gas generated in the high frequency pressing section 21, An encoder 25 for determining whether or not to feed the high frequency base roll 22 in cooperation with the rotation axis of the high frequency base roll 22; and a power transmission means 26 for transmitting the power of the high frequency base roll 22 to the encoder 25.

The preheating unit 30 includes a first roll 31 vertically spaced such that the high-frequency treated paper 9-2 can move horizontally,

A second roll 32 which is applied to the heating roll 10 through the first roll 31, and

And a preheating housing 33 for receiving the first and second rolls 31 and 32 and applying heat for preheating. (34) is an idol roll.

The unified foam board original plate which has passed through the heating roll 10 is cooled in the cooling part 40 to stop the progress of the foaming and keep the surface stably. Examples of the preferable cooling unit 40 include a feeding roll 41 for feeding the coalesced original plate and a cooling chamber 42 for cooling the coalesced board supplied from the feeding roll 41. The combined board board cooled in the cooling chamber 42 is cut to a predetermined size at the cut portion 50.

According to the present invention constructed as described above, the foam board is heat-treated to prepare a foam board,

The joining face portion of the paper 9 to be incorporated in the foam board original plate 2 is subjected to a high frequency heat treatment so as to form an uneven surface 9-1 by the pressing action of the high frequency pressing portion 21 (first process). In this case, since the high-frequency heat treatment itself is a conventional technique, a description thereof will be omitted. However, if a high-frequency heat treatment is performed on paper, the inner surface of the paper is irradiated with a wavelength of high frequency to form an uneven surface 9-1 as shown in FIG. .

The high frequency treated paper 9-2 having the uneven surface 9-1 and the foam board disk 2 to be combined with the high frequency treated paper 9-2 are subjected to a high frequency heat treatment to form a preheated housing 33) so as to be preheated in the preheating unit 30 so as to form the preformed foam board plate 2-4 (second process).

Next, the preheated foam board plate 2-4 and the high-frequency treated paper 9-2 are heated and combined in the heating roll 10 (third process).

It is determined that there is an abnormality in the output of the encoder 25 interlocked with the high frequency base roll 22 between the first process and the second process so that the conveyance of the paper 9 is stopped more than the output of the encoder 25 The control unit 20 further performs a safety process of turning off the operation of the high frequency pressing unit 21. [

In this case, the preheated preformed foam board plate 2-4 and the preheated high-frequency treated paper 9-2 have the same surface temperature and at the same time one surface of the high-frequency treated paper 9-2 is covered with the uneven surface 9 -1). This increases the adhesion by providing the effect of increasing the contact area when pressed while passing through the preheated preformed foam board plate 2-4 surface and the heating roll 10. By simultaneously preheating and pressing together through the heating roll 10, the surface of the combined foamed foam board is uniform and the adhesion improves to improve the durability.

In addition, according to the present invention, the high-frequency unit 20 is enclosed in the high-frequency unit housing 23, thereby preventing environmental pollution and exposure to electromagnetic waves of the operator. In addition, the contamination of the inner space due to the high frequency housing 23 is discharged through the exhaust duct 24. An encoder 25 interlocked with the power transmission means 26 is added to the high frequency base roll 22 so that the output of the encoder 25 is recognized by a control unit It is judged that the feeding is stopped and the operation output of the high frequency pressing part 21 is stopped (the means for stopping and the function are not shown for the switch operating means since the switch operation is possible) The high frequency pressing portion 21 is actuated to remove the risk of smoke generation and fire risk, thereby maximizing work stability.

2, a foam board disk 2-4, a preformed foam board disk 8, a paper roll 9, a paper 9-1, an uneven surface 9-2, a high frequency treated paper 10, a heating roll 20, a high frequency section 21, a high frequency pressing section 22, A base roll 23, a high-frequency housing 24, an exhaust duct 25, an encoder 26, a power transmitting means 30, a preheating portion 31, a first roll 32, a second roll 33, a preheating housing 34, an idle roll 40, A cooling chamber 50,

Claims (4)

A foam board manufacturing apparatus in which a foam board is heat-treated and a paper is incorporated on a surface,
A high frequency section (20) having a high frequency pressing section (21) and a high frequency base roll (22) for high - frequency heating the coplanar area of the paper (9) to be incorporated in the foam board original plate (2);
A preheating section 30 for preheating the high frequency treated paper 9-2 and the foam board disk 2 by vertically separating the high frequency treated paper 9-2 from the high frequency section 20 at the same time; And
And a heating roll 10 for heating and pressing to combine the preheated foam board plate 2-4 and the high frequency treated paper 9-2 that have passed through the preheating portion 30;
The high frequency section 20 includes a high frequency housing 23 having an inlet and an outlet through which the paper 9 passes, an exhaust duct 24 for discharging smoke and exhaust gas generated in the high frequency pressing section 21, And a power transmission means (26) for transmitting the power of the high frequency base roll (22) to the encoder (25), characterized in that it comprises an encoder Manufacturing apparatus.
The preheating unit (30) according to claim 1, wherein the preheating unit (30) comprises a first roll (31) vertically spaced so that the high frequency treated paper (9-2)
A second roll 32 which is applied to the heating roll 10 through the first roll 31, and
And a preheating housing (33) for receiving the first and second rolls (31, 32) and applying heat for preheating.
A method of manufacturing a foam board board in which a foam board is heat treated to incorporate paper on a surface thereof,
A first process of high-frequency heat-treating the merged face portion of the foam board and the paper to be incorporated;
A second process of simultaneously heating the high frequency treated paper and the foam board original plate to be combined with the high frequency treated paper while moving them horizontally up and down; And
A third step of heating and coalescing the preheated foam board plate and the high frequency treated paper in a heating roll;
It is determined whether there is an abnormality in the output of the encoder interlocked with the high frequency base roll during the high frequency processing between the first and second processes and if the feeding of the paper is stopped above the encoder output, And further performing a safety process on the foamed foam board.
The foamed foam board manufacturing method according to claim 3, wherein the second step of preheating is a step of preheating the foamed board board in a state where the preformed foam board is placed in the middle and the high frequency treated paper is placed at the same interval.

Images