KR920009276B1 - Forming method and apparatus for synthetic resin coated frame - Google Patents

Abstract

The window frame material forming apparatus covers a synthetic resin layor on the circumferential face of an aluminum or metallic core for better window frames. The window frame material forming method comprises a step of arranging the core, fed by a feeding machine (15), at rollers (18,18'); a step of spraying adhesive agent stored in auxilliary vessels (19,19') on the circumference of the core (C) by use of a spray nozzle (21) to cover the adhesive agent on the core circumference facing a rail, with a doctor blade (22); a step of evaporating a solvent of the adhesive agent by passing through a drying equipment (17); a step of coating a molten resin extruded from an extruder (23) on the adhesive coated surface of the core (C) material.

Description

Forming Method of Window Frame Aggregate for Windows and Its Apparatus

1 is a cross-sectional configuration of the window frame aggregate molded by the present invention.

2 is a cross-sectional configuration diagram of an aluminum or metal core.

3 is a front configuration diagram of the molding system of the present invention.

4 is a plan view of FIG.

Figure 5 is an enlarged cross-sectional configuration of the shape and dimension correction rollers are coupled to the core in the molding system of the present invention.

Figure 6 is an enlarged cross-sectional configuration of the state in which the adhesive is applied to the core by the coating device portion of the molding system of the present invention.

Figure 7 is an enlarged cross-sectional configuration diagram of the coextrusion die portion of the molding system of the present invention

8 is an enlarged cross-sectional view of a conventional coextrusion die portion.

* Explanation of symbols for the main parts of the drawings

1: forming system 3: main operation part

4 Extruder 15 Feeding Machine

18, 18 ': dimension correction roller 19, 19': auxiliary container

21: spray nozzle 22: coating knife

23: extruder 24: guide

25: dimension correction 26: coextrusion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window frame aggregate forming method and apparatus for coating and molding a synthetic resin insect with an arbitrary thickness on an entire outer circumferential surface of an aluminum or metal core.

Conventionally, the molding of window frame aggregate has been molded into aluminum window frame aggregate or synthetic window frame aggregate by selecting one material from aluminum and synthetic resin, and many problems are inherent in such a single material window frame aggregate.

That is, in the case of aluminum window frame aggregate, there was a problem of opening and closing of flexibility, corrosion resistance, and airtightness, and sound insulation and thermal insulation were inferior. It is weak and vulnerable to heat, and its coefficient of linear expansion is also large, so that the expansion and contraction is severe. When reinforcing steel is embedded in the hollow of the window frame aggregate to supplement the structural strength, the purchase work is very cumbersome and difficult, resulting in deterioration of workability and productivity. Is there.

In addition, in recent years, in order to solve the problems caused by such a material and make use of the advantages of metal and synthetic resin window frames, it is known that a product can improve the window frame strength and corrosion resistance by coating synthetic resin on the surface of the metal window frame.

The manufacture of such window frame aggregate is to allow the synthetic resin to be extruded to be coated on the surface of the metal window frame aggregate passing through the mold of the cross-sectional type of mold. Although a method of manufacturing a coated tube molding apparatus and Japanese Laid-Open Patent Publication No. 57-185133 is known, the former is a device in which a flat metal tube is folded into a U letter and then folded in a circle to coat plastic on the surface thereof. It is a device for extruding resin material on the front and back surfaces of flat materials. Both of them are simply tube-forming devices that adhesively coat resins on the surface and the inner surface. The structure and effect of plastic-coated tube forming device in Korea Patent Publication No. 90-2921 As you can see, the U-shaped bending device and the U-shaped bending machine A device for forming and welding a pipe, a device for coating plastic on the inner surface of a circular pipe, and a device for completing plastic coating on the surface of a pipe. It is a device that aims to increase the elasticity and flexural strength of the pipe rather than the adhesion of the pipe and the coating agent, Japanese Patent Laid-Open No. 57-185133 has a predetermined thickness of the coating material of the polymer material extruded from the extrusion die on the front and back surface of the polymer material on the plate It is a surface gloss coating method that has excellent adhesion without the application of additional adhesive.

The coating method and the apparatus as described above are known a lot, but the present application is a window frame aggregate used for building, its shape and structure is relatively complicated and has a coating surface of various aspects, Coating is impossible.

According to the molding method of the present invention, after applying an adhesive on the outer circumferential surface of an aluminum or metal core having strong structural strength, heat resistance, and low coefficient of linear expansion, a synthetic resin having high thermal insulation, soundproofing, airtightness, and corrosion resistance is coextruded thereon (Co- Coating is carried out, and in order to perform such molding, the above-described conventional molding system for molding the window frame aggregate of a single material may be applied as it is, but only a part of it may be modified. As shown in FIG. 8, in order to mold a product having a different color from a single material, a melt-extruded resin having a different color through the sub-extruder 31 is applied to the resin melt-extruded from the main extruder 30. A simple mold part may be adapted to melt extrusion of different materials and applied to a conventional molding system.

Hereinafter, the molding method and the apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional configuration of the window frame aggregate molded by the present invention, Figure 3 is a front configuration of the molding system of the present invention, Figure 6 is a side configuration of the adhesive coating device portion of the molding system of the present invention, Figure 8 is a present invention As a sectional view of the main part of the coextrusion mold part of the molding system, an unimproved part of the molding system is applied to a conventional molding system as it is.

The molding system 1 is largely divided into a supply part 2, a main operation part 2, an extrusion part 4, a cooling part 5, a drawing part 6, a cutting part 7, an inverting part 8, and the like. Thus, the supply unit 2 is provided with an alignment conveyor 11 operated by a plurality of drive rollers 10 arranged on the base 9, and the air cylinder 12 is mounted on one side of the base 9 (9) It is driven by the power source 13 inside, the guide plate 14 is installed at the tip of the drive roller 10.

A main machine 3 is provided with a pudding machine 15 on the base 9 'and is connected to the other inlet guide roller 16 by a chain and a gear (not shown) to provide a power source inside the base 9'. Driven by (13 '), and one side of the feeding punching machine (15) is mounted on the base of the shape and dimension correction roller and the adhesive applying device part of the core (C) modified for carrying out the present invention, and the other side is dried again. A facility 17 is installed to operate in conjunction with the extrusion unit 4, the cooling unit 5, the take-out unit 6, the cutting unit 7, the inverting unit 8, but the extrusion unit 4 also It has been adapted to do so.

Next, the modified part of the forming system 1 as described above will be described in detail. First, the shape and dimension correction of the core C introduced into one side of the feeding machine 15 of the main operating part 3 is performed. Up, down, left and right rollers 18, 18 'are installed on the base 9' to be connected to the feeding machine 15, and adhesives are embedded at both ends of the upper and lower rollers 18 at both ends. One auxiliary container (19) or (19 ') is placed on the base and the connection hose (20) is connected to the bottom thereof. The injection nozzle (21) is attached to the tip of the connection hose (20) and the injection nozzle (21). The coating knife 22 is installed in the lower part of the lower part, and a guide 24 serving as a guide of the core C drawn into the lower part of the extruder 23 at the tip of the extruded part 4 is provided. The correction part 25 and the coextrusion part 26 are spoken one by one for correcting the shape and dimension of the core, and reference numeral 27 in the drawing is formed on the left and right side walls of the core. John iphom, 28 is a synthetic resin layer, 29 is a window frame aggregate.

The molding method of the present invention using the Sung Hung system (1) configured as described above is as follows.

When the aluminum or metal core C having a predetermined shape is placed on the alignment conveyor 11 of the supply unit 2 in an inverted state so that the rail side is positioned downward as shown in FIG. 6, the drive roller 10 is moved forward. Guide plate 14 is conveyed one by one to the main operating unit (3), but at this time one end of the alignment conveyor 11 is an air cylinder 12 is installed to prevent the flow and slip of the conveyed core , The conveyed core (C) is sent to the feeding machine (15) via the guide guide roller 16 and continues to be conveyed by the powerful self driving force of the feeding machine (15) left and right rollers to correct the shape and dimensions of the core ( 18 ') and the upper and lower rollers 18, and as shown in FIG. 4, the shape and dimensions of the core C are maintained or corrected, and the left and right rollers are firmly supported to maintain the center. , Shape and dimensions in this way The reason for the correction is that coextrusion in the form of dimensional and dimensional errors is caused to cause a thickness variation in the coated molded resin layer, which prevents the appearance of the product from degrading its appearance and deteriorates the performance of the product.

＂형 요입홈(27)에 의해 성형된 합성수지층(28)이 코어에서 이탈됨이 방지되는 것이다.After completing the shape and dimension correction of the bar C, the adhesive is applied to the outer circumferential surface and the upper outer circumferential surface of the left and right side walls, as shown in FIG. The adhesive in the auxiliary vessels 19 and 19 'placed in both sides is applied through the spray nozzle 21, and the upper side of the core C, that is, the outer circumferential surface on which the rail is formed, is coated with a coating knife under the spray nozzle 21. 22) is applied to the adhesive, the core in the state in which the adhesive is applied, the solvent is volatilized and oxidized while passing through the drying equipment (17) to reach the tip of the extruded portion (4) in the state where the adhesive molecule is activated As shown in FIG. 7, when the guide 24 is guided and reaches the coextrusion section 26, the melt-extruded synthetic resin in the extruder 23 is coated on the outer circumferential surface of the core C. While being molded into the present invention window frame aggregate 29, at this time Formed in the outer right and left side wall outer surface control (C) "

The synthetic resin layer 28 formed by the concave concave groove 27 is prevented from being separated from the core.

The product molded into the window frame aggregate 29 is cooled through the cooling unit 5, and then is drawn by the take-in unit 6 and transferred onto the cutting unit 7, and the transferred product is transferred to the cutting unit 7. By cutting to a certain length by being temporarily loaded in the inverting portion 8 is to be packaged.

The window frame aggregate of the present invention as described above can completely improve the function of the window by completely solving the problems of the window frame aggregate made of conventional aluminum or metal only or the window frame aggregate made of only synthetic resins, as well as applying a conventional molding system as it is. If the modification can be carried out the present invention is very useful invention that will also improve the economics.

Claims (2)

An aluminum or metal core C having a predetermined shape is placed on the alignment conveyor 11 of the supply unit 2 and advanced by driving of the driving roller 10 to the main operation unit 3 by the guide plate 14. The well-known window frame aggregate which is conveyed to the feeding machine 15 by the inlet guide roller 16 and continuously conveyed by the powerful self driving force of the feeding machine to be formed into the window frame aggregate through the drying facility 17 and the extrusion part 4 in turn. In the molding method, after the core C transferred by the feeding machine 15 is maintained or corrected in the left and right rollers 18 'and the upper and lower rollers 18, the corrected cores ( The outer peripheral surfaces of the left and right walls of C) are spray-coated with the adhesive in the auxiliary vessels 19 and 19 'as the spray nozzles 21, and the rail outer circumferential surface of the core C is provided below the spray nozzles 21. The adhesive is applied as the coating knife 22, and the core to which the adhesive is applied passes through the drying facility 17. The solvent of the adhesive is volatilized and oxidized to reach the tip of the extruded part 4, and then guided by the guard 24 to reach the coextruded part 26 via the dimensional correction part 25 to melt in the extruder 23. The extruded synthetic resin is coated on the outer circumferential surface of the core (C) forming method for the window frame aggregate, characterized in that. The well-known molding system which consists of the supply part 2, the main operation part 3, the extrusion part 4, the cooling part 5, the takeout part 6, the cutting part 7, the inversion part 8, etc. 1), the upper and lower rollers 18 and the left and right rollers 18 'which perform the shape and dimension correction of the core C on one side of the feeding machine 15 of the main operating part 3 are expected. It is installed on the feeding machine (15), and the upper and lower rollers (18), the auxiliary vessels (19, 19 ') with the adhesive embedded on both sides are placed on the base to the connecting hose (20) ) Is connected, but the injection nozzle 21 is welded to the tip of the connecting hose 20, the coating knife 22 is installed at the lower part of the injection nozzle, and directly below the extruder 23 at the tip of the extruded part 4). The guide 24 is installed, the shaping device for the window frame aggregate, characterized in that the dimensional correction portion 25 and the co-extruded portion 26 is sequentially addressed in the horizontal direction.

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