KR100818342B1 - The compression forming systems duplication of plastics panel - Google Patents

Abstract

A double extrusion molding machine is provided to produce various sizes of plastic panels by replacing a discharge mold rather than making a new machine to meet requirement on the size of the product, to reduce defects by having a gas discharge hole on a side in the machine, to make the surface of the plastic panel smooth and durable by having uniform thickness, to improve competitiveness of the product by reducing cost and improving productivity with utilizing waste plastics, and to produce environmentally friendly plastic panels. A double extrusion molding machine(10) has a discharge mold(11) which extrudes inner plastic material and outer plastic material, a metering mold(12) which adjusts the amount of extruded outer plastic material, an outer plastic feeding mold(13) which is connected to a head(4') of a second extruder(2), a metering mold(14) which adjusts the amount of extruded inner plastic material, and an inner plastic feeding mold(15) which is connected to a head(4) of a first extruder(1). Heaters(10') are placed on the top and bottom surfaces of each mold to melt plastic passing through inner guide holes(16) and outer guide holes(17) for smooth extrusion of the plastic. Rectangular shaped molds are assembled tightly and replaced with other mold if needed. Plural bolts(21) are placed on the metering mold for adjusting the amount of outer plastic supplied from the second extruder. Outer plastic material is supplied from the second extruder connected to the outer plastic feeding mold through an outer guide hole.

Description

The compression molding systems duplication of plastics panel

1 is a plan view showing the connection of the raw material supply extruder and the molding machine for double extrusion of the synthetic resin panel of the present invention.

Figure 2 is a perspective view of a double extrusion machine of the synthetic resin panel of the present invention.

Figure 3 is a perspective view showing the discharge mold and the external resin volume control mold of the double extrusion molding machine of the present invention.

Figure 4 is a cross-sectional view of the bonding state of the extrusion molding machine of the present invention.

Figure 5 is a cross-sectional view of the combined state of the extrusion molding machine and the vacuum apparatus of the present invention.

Figure 6 is a block diagram showing the inner resin supply mold and the inner resin amount control mold of the extrusion molding machine of the present invention.

Figure 7 is a block diagram showing a gas discharge hole formed in the rear of the discharge mold of the present invention.

Figure 8 is an illustration of a synthetic resin panel molded by the extrusion molding machine of the present invention.

<Description of the symbols for the main parts of the drawings>

1: first extruder 2: second extruder

3:, 3 ': hopper 4,4': head

5: Transfer Screw 6: Plate Heater

7: Vacuum Machine 10: Double Extrusion Machine

10 ': Heater 11: Discharge mold

12: External resin volume adjusting mold 13: External resin supply mold

14: internal resin volume control mold 15: internal resin supply mold

16: Inner guide hole 17: Outer guide hole

18: Internal resin body 19: External resin body

20, 21: Adjustment bolt 22: Both adjustment head

23: gas discharge hole

The present invention relates to a double extrusion molding apparatus for extruding a synthetic resin panel used for exterior panels for building, flooring, container flooring, pedestals of logistics loading floors, flooring of aviation and ships, floors of loading boxes for trucks and the like. In particular, the present invention enables the molding of synthetic resin panels of various sizes and various colors using a double extrusion machine to improve the strength and durability of the shock absorbency of the panel, and torsion by heat during molding and the extrusion supply amount of the raw resin It is to prevent the balance of the powder to provide a smooth and high-quality molded product. Especially. The present invention forms and provides various types of synthetic resin panels using waste plastics generated from farming and fishing villages and waste plastics or waste plastics produced at industrial sites, and recycles waste synthetic resins and at the same time environmental pollution by waste treatment. The present invention relates to a double extrusion molding apparatus of a synthetic resin panel which can be prevented.

Conventionally, floor materials and building materials using waste synthetic resins have been provided, but there is a problem in that the efficiency of the products using waste synthetic resins is not practical and activated.

That is, the synthetic resin extrusion device is a typical extrusion molded product of a pipe-type PVC pipe such as a water pipe, a sewage pipe, a water pipe, etc. This extrusion molding device melts and extrudes the raw material and at the same time winding the molding machine such as a drum to form a pipe Although there is no particular problem, the technology of the molding machine for forming a synthetic resin plate such as a panel is to control the thickness of the extrusion, the gas treatment caused by the high heat during the extrusion process, the torsion caused by heat, the surface color unevenness, etc. Was the biggest problem.

Patent No. 645935, "Bottom of freight container, and its manufacturing apparatus," which is the applicant's right, registered in advance to solve the above problems, is used in the transportation of cargo using cargo transportation means such as aviation, ships, trucks, etc. As a flooring material to be filled with the outer element consisting of a hollow plate body shape and the bottom material manufacturing apparatus of the container filled with a replenishment element of the foam in the hollow of the outer element,

An extruder which mixes and melts the powdered raw materials introduced through the hopper through a screw case generating high heat and then extruding them to the head;

Adjacent to one side of the extruder is arranged in parallel, the raw material in the form of powder injected through the hopper is foamed in a screw cage that generates a high heat and then the foaming supplementary elements are fed into the head of the extruder through the head and the connecting pipe Foam molding machine;

A die for receiving the raw material from the head of the extruder to mold the outer element having the hollow flat plate shape, and receiving the foamable supplemental element from the foam molding machine and filling the hollow of the outer element;

A sizing that is installed in the die and pressurizes the external element and the supplementary element that are extruded from the die and pressurizes; And a cooling means for hardening the extruded molded product that is formed while passing through the sizing to be cooled after being installed at the rear of the sizing, thereby providing a flooring manufacturing apparatus for a container for freight transportation. Arc has irregular supply of raw materials to dies to form inner and outer elements, so that the thickness of the bottom of the plate-shaped body extruded through the dies is not uniform, and the cores are partially agglomerated, and the cores are supplied to the dies. Due to the imbalance of the raw material, the plate-like polymer in which the inner and outer elements are polymerized is hardened, and the center portion is thinly extruded compared to both sides, and thus bowing phenomenon occurs like a bow. A problem occurs that bubbles are generated and burned Is a vacuum upon a change in the color stain caused by the high temperature bonding is a partially fine spaced generated surface of the inner element and the outer element generated in accordance with there is a problem in that the quality of the product decreases.

In view of the above problems, the present invention provides a double extrusion machine assembled in a plurality of block forms, and according to the specification of the product to be molded, the inner resin body and the outer resin body of the front are discharged without newly manufacturing the entire molding machine. The purpose is to provide a variety of synthetic resin panels used in industrial sites and interior and exterior materials by replacing only the discharge molds, and by forming gas discharge holes on one side of the molding machine, stains and unbalances are formed. By reducing the defect rate as much as possible and increasing the amount of supply of the inner resin and the outer resin to uniform the thickness of the compressed synthetic resin panel to make the surface smooth and durable, the waste synthetic resin can be recycled repeatedly To reduce costs and increase productivity Competitiveness of the two at the same time that the environment-friendly synthetic resin panel is improved for the purpose of providing an extrusion apparatus.

Hereinafter, an embodiment of the present invention will be described in detail.

In the double extrusion molding machine of synthetic resin,

The raw material extruded from the head 4 of the first extruder 1 is formed of the inner resin body 18, and the raw material extruded from the head portion 4 'of the second extruder 2 is formed of the outer resin body 19. The double extrusion molding machine 10 is formed into a plurality of rectangular blocks so that the synthetic resin panel 30 can be formed, and the heater 10 'is installed on the upper and lower sides of the molding machine. A discharge mold 11 for extruding the external resin body, an external resin amount adjusting mold 12 for adjusting the extrusion amount of the external resin body, an external resin supply mold 13 having one surface connected to the head of the second extruder, It consists of a combination of the inner resin volume control mold 14, the inner resin supply mold 15 connected to the first extruder head.

The discharge mold has an inner guide hole 16 penetrating the center portion, a penetrating outer guide hole 17 is formed on the outer circumferential surface of the inner guide hole 16, and a plurality of gas discharge holes 23 are formed on the rear surface. to be.

The outer resin volume control mold is formed in the center through the inner guide hole (16a) of the same size as the inner guide hole (16) of the discharge mold, one side is wide on the outer peripheral surface of the inner guide hole (16a) is formed narrow And the outer guide hole 17a having an inclined surface therein so as to pass therethrough and up and down. The left and right are characterized in that the plurality of external resin volume adjustment bolt 20 is installed.

The outer resin supply mold has an inner guide hole 16b penetrating the center portion, and an outer surface of one side thereof is connected to the head 4 'of the second extruder 2 so as to penetrate the inner guide hole 16b. The outer guide hole 17b is formed so as to correspond to the rear side of the outer guide hole 17a of the outer resin volume adjusting mold 14.

The inner resin volume adjusting mold is characterized in that the bow-shaped volume control head 22 is positioned at the ceiling of the inner guide hole 16c formed at the center thereof and is connected to a plurality of inner resin control bolts 21 installed on the upper portion. .

The inner resin supply mold has an inner guide hole 16d penetrated in the center thereof to correspond to the guide hole 16c of the inner resin amount adjusting mold 14 on one side, and the other side of the head of the first extruder 1 Is connected to 4) is configured to extrude the inner resin body 18.

The present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a plan view showing a connection between a raw material supply extruder and a molding apparatus for double extrusion of a synthetic resin panel of the present invention. First, an extrusion line for supplying a raw material of a resin for molding the double-extruded synthetic resin panel 30 of the present invention. Silver is composed of a first extruder (1) and a second extruder (2), the raw material supplied from the first extruder (1) as the inner resin body 18 and the raw material supplied from the second extruder (2) the outer resin body (19)

Therefore, the head is formed at the distal end of the transfer screw 5 after supplying the raw material to the hopper 3 provided on one side of the first extruder 1 and the hopper 4 'provided on one side of the second extruder 2. (4) (4 '), where a plurality of plate heaters (6) are formed in the form of a ring wound on one side of a transfer screw on the outer surface of the transfer screw in a state of melting synthetic resin raw materials transferred by the transfer screw. In particular, the foamed material is melted in a relation that the foamed material is mixed in the inside of the raw material.

In addition, the feed screw continuously extrudes the molten raw material to the head (4) (4 ') to supply the raw material to the double extruder (10).

The temperature of the plate heater (6) provided in the transfer screw (5) is somewhat different depending on the state of the synthetic resin supplied to the hopper (3) (3 '). In other words, the collected waste synthetic resins are hard and weak, and there is a slight difference, so the melting temperature may be slightly different depending on the situation at that time, but in most cases, it is used as it is without changing after setting the temperature.

As described above, the water support fee supplied to the hopper 3 of the first extruder 1 is transferred to the head 4 side by the transfer screw 5 so that the inner resin body supply mold 15 of the double extrusion machine 10 is rearward. It is connected to the inner guide hole 16d at the center to supply the inner resin 18.

In addition, the resin raw material supplied to the hopper (3 ') of the second extruder (2) is transferred to the head by the conveying screw (5) and then the outer guide formed to communicate with one side of the outer resin supply mold (13) It is connected with the hole 17b to supply the outer resin body 19 to the molding machine.

A plurality of plate heaters 6 are installed on the outer surfaces of the transfer screws of the first and second depositors to melt the raw material resins transferred by the transfer screws 5.

Figure 2 is a perspective view of a double extrusion molding machine of the synthetic resin panel of the present invention, the double extrusion molding machine 10 is from the front. The discharge mold 11 for extruding the outer resin body 18 and 19, the outer resin amount adjusting mold 12 for adjusting the extrusion amount of the outer resin body, one side is connected to the head 4 'of the second extruder The outer resin supply mold 13, the inner resin amount adjusting mold 14, and the inner resin supply mold 15 is connected to the first extruder head (4).

In addition, the dual extrusion molding machine 10 is provided with a heater 10 'on each mold upper surface and the bottom surface of each of the inner guide holes 16, 16a, 16b, 16c, 16d of the dual extrusion molding machine 10. Continuously melting the resin passing through the outer and outer guide holes 17, 17a, 17b to facilitate the extrusion.

The double extrusion machine 10 is composed of a plurality of rectangular blocks are closely coupled to each other is configured to replace each mold as needed.

In addition, the upper and lower left and right and left centers of the external resin volume control mold 12 of the double extrusion molding machine 10 is provided with a plurality of volume control bolts 20 are provided for the external resin body 19 supplied from the second extruder 2. The amount can be adjusted.

The outer resin body 19 is supplied to the outer guide hole 17b from the second extruder 2 connected to one side of the outer resin body supply mold 13.

The outer guide hole 17b formed in the outer resin supply mold 13 has a hole formed in the outer circumferential surface of the inner guide hole 16b installed to penetrate the center portion, and the outer resin body 19 injected therein is an inner guide hole 16b. It is connected so as to be extruded to the outer guide hole 17a of the outer resin volume adjusting mold 14 along the outer guide hole 17b penetrated to one side by turning one outer circumferential surface thereof.

The outer resin body 19 extruded into the outer guide hole 17a formed as described above has a uniform thickness of the outer resin body 19 coming out of the outer guide hole 17 of the discharge mold 11 even when the same pressure is applied. In this regard, the thickness of the external resin discharged is uniformly molded by controlling it.

Figure 3 is a perspective view of a state of the discharge mold and the outer body volume control mold of the double extrusion apparatus of the present invention, the discharge mold 11 and the outer resin volume control frame 12 constituting the double extrusion molding machine 10 is required. It is possible to replace according to.

That is, when the synthetic resin panel 10 is formed to be thick, the thickness of the synthetic resin panel to be extruded is controlled by replacing the inner guide hole 16 and the outer guide hole 17 of the discharge mold 11 with a larger diameter. It becomes possible.

In addition, the outer guide hole 17a of the external resin body adjusting mold has an inclined surface formed inward so as to be larger than the size of the outer guide hole 17 of the corresponding ejecting mold, thereby forming a mold having a shape extended to the ejecting mold side. Corresponding to the size change of the inner and outer guide holes (16) and (17) of (11).

Figure 4 is a cross-sectional view of the extrusion molding apparatus of the present invention, the discharge mold 11 constituting the double extrusion molding machine 10, the external resin amount control mold 12, the external resin supply mold 13, Inner guide hole 16, 16a, 16b, 16c, 16d communicating with the inner portion of the inner resin body adjusting mold 14 and the inner resin supply mold 15 communicates with each other so that the first extruder 1 The inflow amount of the inner resin 18 which is connected to and supplied from the first extruder 1 is controlled in the inner resin amount adjusting mold 14.

In addition, each of the inner guide holes connected to each other is gradually expanded from the inner resin supply mold to the discharge mold 11 in the shape of a trumpet in plan view.

 In addition, as can be seen in Figure 4 the outer guide hole (17a) of the outer resin volume adjustment mold 12 is narrow in one side and the other side is enlarged form the outer guide hole in the rear portion of the discharge mold 11 in the larger diameter of the outer guide hole Are coupled to correspond to (17). One side of the outer guide hole 17a of the outer resin body adjusting mold 12 has a large diameter, so that the extruded mold may be extruded even if the discharge mold is replaced with a large or small one to increase the thickness of the synthetic resin panel 10 to be molded. The thickness of the synthetic resin panel can be freely adjusted by supplying all the support fee smoothly.

5 is a cross-sectional view of the extrusion apparatus and the vacuum apparatus of the present invention, wherein the synthetic resin panel 10 extruded from the double extrusion molding machine 10 of the present invention is vacuum suctioned by a vacuum machine 7 installed in front of the cooling water. As a result, the surface of the resin is smooth and smooth.

In addition, the synthetic resin panel 30 extruded from the double extrusion molding machine 10 has a smooth surface while passing through the vacuum chamber 7 and the inner resin 18 and the outer resin 19 are tightly combined. After the water is cooled in the cooling bath in the drawer is drawn out by the drawer is cut to a predetermined standard with a cutter. The cut size varies depending on the size of the support member, interior and exterior panels, flooring, and the like.

Figure 6 is a block diagram showing the inner mold supply mold and the inner resin volume control mold of the extrusion molding apparatus of the present invention, the raw material resin (inner resin body) supplied through the head 4 of the first extruder (1) Reaches the inner resin supply mold 15, the inner surface of the mold is narrow like the trumpet, the inlet is narrow and the side corresponding to the inner resin volume control mold 14 is formed wide, so that the resin is extruded and the inner resin supply mold 15 Extruded along the inner guide hole (16d) of the extrusion along the inner guide hole (16) (16a) (16b) (16c) in communication with the ejection die 11 is discharged.

The inner resin 18 which is moved along the inner guide hole 16d of the inner resin supply mold 15 has an amount extruded by the amount adjusting bolt 21 installed in the inner resin amount adjusting mold 14. Adjust

That is, when the inner resin is supplied to the rectangular guide hole of the same size, the resin body is driven to the center portion, so that the inner ceiling of the inner guide hole 16c has a bow-like shape in the inner guide hole 16c as shown in FIG. By installing the adjustment head 22 to be moved up and down by the two adjustment bolts 21 located in the upper can be uniformly adjusted the amount of the inner resin body 18 is extruded through the inner guide hole (16c).

Figure 7 is a configuration diagram showing the air and gas discharge hole formed in the rear of the discharge mold of the present invention, the double extrusion molding machine 10 of the present invention so that the inner resin 18 and the outer resin 19 is smoothly extruded In order to generate a high heat by installing a plate-shaped heater (10 ') on the upper surface and the lower surface, the inner resin and the outer resin generates gas by heat, and discharges it to the outside air through the gas discharge hole (23).

The gas discharge hole 23 is installed on the side of the discharge mold 11 corresponding to the discharge mold 11 and the external resin volume control mold to discharge the gas generated from the internal resin and the external resin to the outside. The secondary resin and the outer resin are smoothly discharged while the outer shape is prevented from being deformed by the gas.

8 is an exemplary view of a synthetic resin panel extruded by the molding apparatus of the present invention, a synthetic resin panel 10 molded by the molding apparatus of the present invention. The outer resin body 19 and the inner resin body 18 of the synthetic resin panel 10 to be molded as shown in Figure 8 may be different from the inner and outer compositions even if the composition to be molded may be the same.

That is, when the waste synthetic resin mixture is put in the hopper 3 of the first extruder and the pure raw material mixture is supplied to the hopper 3 'of the second extruder, the inside of the synthetic resin panel 10 discharged through the discharge mold of the double extruder. The resin body is made of waste synthetic resin and the outer resin body is made of pure raw material to improve the quality of the product, or the colors of the inner and outer resin bodies can be expressed differently.

 Of course, the color of the inner resin and the outer resin and the composition of the raw material may vary depending on the use of the synthetic resin panel used.

 By mixing the PE and wood powder and vermiculite blowing agent pigments of the waste synthetic resin in the double extrusion molding machine of the present invention as described above and supplying them to the raw material composition of the inner body and the outer body to double extrusion to provide a flooring-containing resin panel, shock absorbency It is possible to prevent environmental pollution by improving the strength and durability of fire retardant, flame retardant to fire, and preventing torsion caused by heat, and recycling plastic waste generated in industrial sites and waste vinyl generated in rural areas. .

In another aspect, the present invention provides a panel-type product that is used throughout the industrial society by manufacturing a building flooring material, container flooring material, pedestals of logistics loading floor, floors of aviation and ships, floors of loading boxes of trucks, etc. using a double extrusion molding machine. There is this.

The present invention thus achieved by providing a plurality of block-type double extrusion molding machine to facilitate the molding of the synthetic resin panel consisting of the inner and outer body, the effect of providing a synthetic panel with improved durability and the inner and outer resin body Color can be formed differently from each other to express the color corresponding to the intended use.The double extrusion molding machine is formed into a plurality of block shapes to replace the block on the side of the discharge mold to a desired size, thereby forming flooring and supporting materials. It has the effect of freely molding synthetic resin panels of various products, such as interior and exterior panels, formwork panels, to provide products, and particularly, by collecting and recycling waste plastics and waste vinyl to be disposed of and preventing environmental pollution.

Claims (6)

delete The raw material extruded from the head 4 of the first extruder 1 of the double extrusion molding machine of synthetic resin is formed by the internal resin body 18, and the raw material extruded from the head 4 'of the second extruder 2 is The extruder 10 is formed of a plurality of rectangular blocks so as to form the outer resin body 19 so as to form the synthetic resin panel 30, and the upper and lower heaters 10 'are provided with a molding machine. Discharge mold 11 for extruding the outer resin body, outer resin volume control mold 12 for adjusting the extrusion amount of the outer resin body 12, outer resin supply mold 13, one side is connected to the head of the second extruder, the inner In the dual extrusion molding apparatus of a synthetic resin panel composed of a combination of the resin body volume control mold 14, the inner resin supply mold 15 connected to the first extruder head, An inner guide hole 16 penetrates the center portion of the discharge mold 11, a penetrating outer guide hole 17 is formed on an outer circumferential surface of the inner guide hole 16, and a plurality of gas discharge holes 23 are formed on the rear surface thereof. Dual extrusion molding apparatus of a synthetic resin panel, characterized in that configured. The method of claim 2, The outer resin volume adjusting mold has a penetrating inner guide hole 16a having the same size as the inner guide hole 16 of the discharge mold in the center, and one side is wide and the other side is narrowly formed on the outer circumferential surface of the inner guide hole 16a. It is formed to pass through the outer guide hole (17a) having an inclined surface on the inner side and up and down. The left and right double extrusion molding apparatus of a synthetic resin panel, characterized in that the plurality of external resin volume control bolt (20) is installed. The method of claim 2, The outer resin supply mold has an inner guide hole 16b penetrating the central portion thereof, and one outer surface thereof is connected to the head 4 'of the second extruder 2 to form an outer circumferential surface of the inner guide hole 16b. The double extrusion molding apparatus of a synthetic resin panel, characterized in that the outer guide hole (17b) is formed so as to correspond to the rear side of the outer guide hole (17a) of the outer resin volume control mold (14). The method of claim 2, The inner resin volume adjusting mold is a synthetic resin, characterized in that the bow-shaped volume adjusting head 22 is positioned at the ceiling of the inner guide hole 16c formed at the center and connected to a plurality of inner resin adjusting bolts 21 installed on the upper portion. Panel dual extrusion molding machine. The method of claim 2, The inner resin supply mold has an inner guide hole 16d penetrated in the center thereof to correspond to the guide hole 16c of the inner resin amount adjusting mold 14 on one side, and the other side of the head 4 of the first extruder 1. Dual extrusion molding apparatus of a synthetic resin panel, characterized in that configured to be connected to the extrusion molding the inner resin (18).

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