KR200181613Y1 - Manufacturing apparatus for plastic pipe of multiple layers using plastic salvage - Google Patents

Abstract

The present invention provides a manufacturing apparatus for regenerating waste plastic wave support material to form an inner pipe (endothelial) structure, and extruding and bonding the plastic wave support material to the outer surface of the endothelial rather than recycled.

The apparatus for manufacturing the plastic fume pipe has a raw material inlet 12a for sorting and injecting the collected waste plastic wave support material (PE, nylon, PP, etc.), and the temperature of around 300 ° C while crushing the injected waste plastic wave support material. The primary crushing melter 10c having a double screw portion 14c and a boiler portion (heating burner portion) 14d for heating and mixing for 3 to 7 minutes by a furnace, and the waste plastic wave support material heated and mixed Secondary crushing melter 10b having a double screw portion 14b, a boiler portion (heating burner portion) 14d and a second crushing melter 10b for crushing and continuously heating to a temperature of about 300 ° C. ) And the waste plastic wave support material to be heated to maintain the temperature around 250 ° C and the waste plastic wave support material from the tertiary melter (10a) to a pair of extrusion roller (19). Tensile to constant thickness and width while cooling with controlled supply An endothelial extruder 10 comprising a dispensing box 18 for extruding into a machine 30; The molten waste plastic wave support material extruded from the endothelial extruder 10 is cooled by a cooling means while being formed into a spiral tubular shape by the rotation of the rotary roller 31 and pushed outward from the outer surface of the rotary roller 31. Tensioner 30; And, it is characterized in that it comprises a shell extruder 20 to form the shell 3 by extruding molten plastic on the outer surface of the tubular endothelial 2 while being formed into a spiral tubular shape and cooled.

Description

MANUFACTURING APPARATUS FOR PLASTIC PIPE OF MULTIPLE LAYERS USING PLASTIC SALVAGE}

The present invention relates to a two-layered plastic fume pipe manufacturing apparatus using waste plastics, and more specifically, it is possible to recycle resources and protect the environment by using recycled plastic grips, and the pressure resistance is increased even with a simple structure. Furthermore, by using the new plastic raw material only, the outer skin is recycled to form the inner pipe (endothelial) structure by bonding the inner skin of the spiral structure to make the exterior beautiful, and the plastic wave support material is not recycled. The present invention relates to a manufacturing apparatus for extruding and bonding to an outer surface.

Conventionally, it is widely known to manufacture multilayered multilayer tubes made of thermoplastic plastics having spiral wound layers in general, and each layer is wound to overlap each other, and it is also known to wind small tubes of various structures to form large tubes. . Further, a method is also known in which the hollow chamber shapes, each of which are linear, are separately installed between two spirally wound flat layers without forming such a laminated tube completely. As described above, various types of structures have been developed for the plastic fume tube having a multilayer structure, and a manufacturing method and a manufacturing apparatus thereof have been developed.

As an example, the pressure-resistant synthetic resin tube disclosed in Patent Application Publication No. 99-001314 is formed in the shape of a spiral convex convex wave, and a metal reinforcing band plate is embedded in the thickness of the synthetic resin tube wall to improve the internal pressure. The metal reinforcing band plate is superimposed or formed into a special structure, but the reinforcement is made over the entire wall of the pipe, but due to such a reinforcement structure, there is a problem that it becomes expensive and complicated to manufacture.

In addition, the method of manufacturing a multilayer tube disclosed in Korean Patent Application Laid-Open No. 99-032911 is intended to solve the drawback that the outer surface of a laminated tube having a substantially circular prowheel is not smooth and expands unstable. After the shape safety of the pro-wheel is achieved, the inner and side surfaces are welded together so that adjacent sides are fused to each other. Since the small pipe of the structure must be formed, there is a problem that the process becomes complicated and the unit price increases.

Therefore, the present invention has been researched and developed in order to solve the above-mentioned problems. The waste plastic wave support material is recycled to form an inner pipe (endothelial) structure, and the plastic raw material is not recycled to the outer surface of the endothelial. By using recycled plastic, it is possible to recycle resources and protect the environment, and the pressure resistance can be increased even with a simple structure. Furthermore, the outer skin can be beautiful while joining the helical shell with new plastic raw materials. It is an object of the present invention to provide an apparatus for producing a plastic fume pipe having a multilayer structure using waste plastic.

Figure 1 is a longitudinal partial cross-sectional view showing the structure of a two-layered plastic fume pipe using waste plastic produced in the present invention,

Figure 2 is a process diagram showing an embodiment of a method for producing a plastic fume tube of a two-layer structure using waste plastic by the device of the present invention,

Figure 3 is a block diagram showing an embodiment of an apparatus for manufacturing a plastic fume pipe of a two-layer structure using waste plastic according to an embodiment of the present invention,

Figure 4 is a schematic diagram showing an embodiment of a third melter of the endothelial extrusion device for extruding the endothelial by supplying waste plastic in Figure 3,

Figure 5 is a schematic configuration diagram showing an embodiment of an envelope extrusion apparatus for extruding the envelope by supplying waste plastic in Figure 3,

6 is a partially enlarged cross-sectional view showing a double screw portion for heating, conveying and pulverizing primary and secondary crushing melters of the endothelial extruding apparatus of FIG.

7 is a front view showing the external structure of the distribution box of FIG.

8 is a plan view illustrating an internal configuration of a distribution box.

Explanation of symbols on the main parts of the drawings

1: plastic fume pipe (this design) 2: endothelial

3: shell 10: endothelial extruder

10a: 3rd melter 10b, 10c: 2nd and 1st crushing melters

14a, 14b, 14c: Double screw part 14d: Boiler part (heating burner part)

14e, 16b: Electric heater 14 ': Cylinder

16: inlet 17: inlet

18: dispenser 19: extrusion roller

20: shell extruder 30: tensioner

31: rotary roller

In order to achieve the above object, according to an embodiment of the present invention, the apparatus for producing a plastic fume pipe of a multi-layer structure using waste plastic, melted and extruded thermoplastic waste plastic wave support material to form a spiral winding, pipe at least And a layer of shell 3 formed by forming the outermost layer by extruding and bonding the molten plastic raw material to the outer surface of the shell 2 immediately after the layer 2 and the shell 2 are wound. In the apparatus for manufacturing a plastic fume pipe having a multi-layer structure comprising: a raw material inlet (12a) for sorting and collecting the collected waste plastic wave support material (PE, nylon, PP, etc.) is formed, and the waste plastic wave support material is shredded And a primary crushing melting machine 10c having a twin screw portion 14c and a boiler portion (heating burner portion) 14d for heating and mixing at a temperature of about 300 ° C. for 3 to 7 minutes, and the heating and mixing thereof. Waste plastic Second crushing melting machine 10b having a double screw portion 14b and a boiler portion (heating burner portion) 14d for further crushing the crushing support material and continuing heating to a temperature of about 300 ° C, and secondary crushing A pair of extrusion rollers are used to heat the waste plastic wave support material transported from the melter 10b to maintain the temperature around 250 ° C. and the waste plastic wave support material from the tertiary melter 10a. An endothelial extruder (10) comprising a dispensing box (18) for extruding into the tensioner (30) with a constant thickness and width while cooling with a feed amount controlled by (19); The molten waste plastic wave support material extruded from the endothelial extruder 10 is cooled by a cooling means while being formed into a spiral tubular shape by the rotation of the rotary roller 31 and pushed outward from the outer surface of the rotary roller 31. Tensioner 30; And, it is characterized in that it comprises a shell extruder 20 to form the shell 3 by extruding molten plastic on the outer surface of the tubular endothelial 2 while being formed into a spiral tubular shape and cooled.

The tertiary melter 10a of the endothelial extruder 10 includes a pair of screwed pair screw portion 14a, a cylinder 14 'surrounding the paired screw portion 14a, and the cylinder 14'. Including the heating boiler portion (heating burner portion) 14d to transfer and heat while further crushing the remaining mass of the molten waste plastic wave support added, the electric heater (3) in the input pipe 16 of the tertiary melter (10a) 14e, 16b) is heated and transported to maintain the melt waste plastic wave support material flowing by 250 degrees, the distribution box 18 is a control handle for adjusting the thickness by adjusting the interval of the pair of extrusion roller 19 ( It is preferable to comprise 19a).

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

Figure 1 shows a longitudinal cross-sectional view of the structure of a two-layered plastic fume pipe using waste plastic produced by the device of the present invention.

In Fig. 1, the plastic fume tube having a multilayer structure using the waste plastic is formed of at least one layer of the inner shell 2 and the outer shell 3, and the inner shell 2 melts and extrudes the waste plastic wave support material and spirally winds it. To form at least one layer of pipe.

The outer shell 3 is formed as the outermost layer by extruding and bonding the molten plastic raw material to the outer surface of the inner shell 2 immediately after the inner shell 2 is wound.

In this way, a multi-layered plastic fume tube using waste plastic is wound in a spiral with an inner shell (2) and an outer shell (3) to form a pipe, and at least two or more layers are formed to form a multi-layer plastic fume tube (1). do.

One embodiment of the manufacturing method of the two-layered plastic fume tube 1 using such waste plastic is shown in the process diagram in Figure 2, Figures 3 to 7 of the plastic fume tube of the two-layer structure using waste plastic of the present invention A configuration diagram and one detail thereof of one embodiment of the manufacturing apparatus is shown.

As described above in FIG. 2, at least one endothelial layer 2 that melts and extrudes the thermoplastic waste plastic wave support material to spirally wind and form a pipe, and the endothelial 2 immediately after the endothelial 2 is wound. The method for producing a plastic fume tube 1 having a multi-layer structure comprising one layer of outer shell 3 formed by extruding and bonding the molten plastic raw material to the outer surface of the outer layer is selected, injecting step, and primary crushing. It comprises a melting step, secondary crushing melting step, third melting step, waste plastic extrusion step, endothelial forming step, skin forming step and complete cooling step.

In the sorting and feeding step, waste plastic shredding materials (PE, nylon, PP, etc.) collected in FIGS. 3, 4 and 6 are sorted and introduced into the raw material inlet 12a, and then to the primary crushing melting machine 10a. In the primary crushing melting step, the waste plastic crushing support material fed from the primary crushing melter 10c is 300 ° C by the boiler portion (heating burner portion) 14d while being crushed by the twin screw portion 14c. It heats and mixes for 3-7 minutes at the temperature before and behind.

The heat source of the boiler portion (heating burner portion) 14d can be heated by gas, oil or waste materials at the time of introduction (see Fig. 5).

In the second crushing melting step, the heated and mixed waste plastic crushing support material is transferred to the secondary crushing melter 10b and crushed by the twin screw portion 14b, and at the same time, the boiler portion (heating burner portion) 14d is removed. Heating is continued at a temperature of about 300 ° C., and then, in the third melting step, the molten waste plastic support material conveyed from the third melter 10a is heated in a third manner and distributed while maintaining the temperature around 250 ° C. Transfer to (18). In the third melting step, the waste plastic wave support material conveyed as shown in FIGS. 3 and 4 is passed through the twin screw portion 14a to melt and crush the remaining mass at the same time as the primary to third. In the primary crushing melting step, the heat source includes a boiler part (heating burner part) 14d for burning gas, oil or waste materials in the input, and the double screw part 14c in the first and second crushing melting steps. It is preferable that the cylinder external temperature, which is the screw body of (14b), is maintained at about 400 ° C., and the cylinder external temperature is maintained at about 300 ° C. in the third crushing melting step.

In the waste plastic extrusion step, the molten waste plastic support material transferred to the dispensing box 18 is extruded into the tensioner 30 while cooling to the feed amount controlled by the pair of rollers in the dispensing box 18.

In this way, the waste plastic wave support material extruded according to the rotation of the tensioner 30 by using the waste plastic in the tensioner 30 forms the inner shell (2) of the spiral structure, and the pipe is first cooled. , Pushed out of the tensioner 30 (endothelium forming step).

The shell 3 is formed by extruding the molten plastic raw material using the shell extruder 20 on the outer surface of the shell 2 of the spiral pipe structure which is first cooled and pushed out on the tensioner 30 (skin shell forming step). ). This process can be applied to the prior art as it is, the pressing roller may be additionally employed so that the endothelial 2 is pressed more strongly on the outer shell (3).

Thereafter, the outer shell 3 coated plastic fume tube 1 is cooled to room temperature to maintain a desired shape, and cut to a normalized length to complete the manufacture of the multi-layered plastic fume tube (complete cooling step).

Apparatus according to an embodiment of the present invention for implementing the above-described method is configured to include an endothelial extruder 10, the outer shell extruder 20 and the tensioner 30 in Figures 3 to 7.

The endothelial extruder 10 includes a primary crushing melter 10c, a secondary crushing melter 10b, a tertiary melter 10a, and a distribution box 18.

The primary crushing melter (10c), as specifically shown in Figure 6, has a raw material inlet (12c) for selecting and inputting the collected waste plastic shredding support (PE, nylon, PP, etc.), It has a twin screw portion 14c and a boiler portion (heating burner portion) 14d to heat and mix the injected waste plastic wave support material at a temperature of about 300 ° C. for 3 to 7 minutes.

In addition, the secondary crushing melter (10b) also has an inlet (12b) for injecting the heated, mixed waste plastic wave support material conveyed from the primary crushing melter (10c), as shown in Figure 6, once again 300 It has a twinscrew part 14b and a boiler part (heating burner part) 14d so that it may be crushed while continuously heating to a temperature of about 占 폚.

The tertiary melter 10a is configured to hold the waste plastic wave support material conveyed from the secondary crushing melter 10b at a temperature of around 250 ° C. and to be transferred to the distribution box 18. In the tertiary melting step of the tertiary melter 10a, most of the crushing is performed in the first and second stages, so that no further crushing is necessary. In FIG. 4, the twin screw portion 14a is employed to crush the remaining mass. It is possible to maintain the melting temperature.

The distribution box 18 has an inlet 17 for introducing the waste plastic wave support material supplied from the tertiary melter 10a via the inlet tube 16, and is shown in detail in FIGS. 7 and 8. As shown, it comprises a dispensing box 18 for extruding into the tensioner 30 at a constant thickness and width while cooling with a feed amount controlled by a pair of extrusion rollers 19.

4 and 6, the pair of screw portions 14a, 14b and 14c of the screw are surrounded by the cylinder 14 ', and the outer circumference of the cylinder 14' is the boiler portion (heating burner portion) ( 14d). In this way, the waste plastic phages put into the primary and secondary are conveyed and heated while being crushed, and the same method can be employed in the tertiary, and then the melt flowing through the electric heaters 14e and 16b. The waste plastic wave support fee can be introduced into the distribution box 18 while maintaining the 250 degree. As shown in FIG. 7 and FIG. 8, the distribution box 18 may include an adjusting handle 19a for adjusting the thickness of the pair of extrusion rollers 19 to adjust the thickness. In addition, a guide that can be adjusted in width so as to contact the pair of extrusion roller 19 to adjust the extrusion width is installed, or including a control means of the motor for adjusting the rotational speed of the pair of extrusion roller 19 It may be configured.

The tensioner 30 cools the molten waste plastic wave support material extruded from the endothelial extruder 10 by a cooling means while forming a spiral tubular shape by the rotation of the rotary roller 31 and the rotary roller 31. It is configured to push outward from the outer surface of the (may be by a plurality of rollers as known).

The shell extruder 20 is configured to extrude the molten plastic to form the shell 3 on the outer surface of the tubular endothelium 2 while being formed into a spiral tubular shape and cooling. For example, a raw material inlet 22 for injecting a plastic raw material (PE, nylon, PP, etc.) is formed in FIG. 5, and is heated and maintained at about 300 ° C. to melt the plastic raw material that has been injected in a conventional manner. It consists of a primary melter 24 and the secondary melter 26 is heated and maintained in a 250 ℃ electric arc, the end is attached to the extrusion die or guide.

The multi-layered plastic fume pipe using waste plastic manufactured by the manufacturing method as described above and the manufacturing apparatus of the present invention has a remarkable external pressure strength, and in particular, compared with other kinds of pipes of other companies' products, recycled waste plastic raw materials Compared with multi-layered spiral pipes, it has excellent external pressure strength and abrasion resistance and is suitable as a substitute for concrete fume pipes. The stiffness at 5% deformation of the inner diameter of 9.6 Kgf / cm 2 was obtained by the test method of ASTM D 2412).

In addition, it is easy to handle during construction due to the low cost of construction, and it is easy to install because the socket can be selected according to the purpose of connection construction. .

In addition, compared to the existing pipe materials such as drain pipe, waste water pipe, sewage pipe, the pipe price is very low, and is very economical in terms of transportation cost, construction cost, durability maintenance cost, and also can recycle resources and environmental protection.

As described above, the plastic fume pipe having a multilayer structure and its manufacturing method and apparatus are shown and described using only the waste plastic wave support material completely as described above, but the endothelial 2 has a recycled plastic amount of 20 to 30 wt.%. The plastic fume tube 1 having a multi-layer structure may be manufactured without significantly lowering the strength even if it is formed to include the plastic raw material.

As described above, according to the configuration and operation of the manufacturing apparatus of the multi-layered plastic fume tube using the waste plastic according to the embodiment of the present invention, by using the waste plastic wave support material to produce a low-cost and excellent quality multi-layered plastic fume tube It can be manufactured, thereby enabling the recycling of resources and environmental protection.

Claims (2)

The plastic raw material melted on the outer surface of the inner shell 2 immediately after the inner shell 2 is wound and at least one layer of the inner shell 2 which melts and extrudes a thermoplastic waste support material spirally to form a winding and a pipe. In the apparatus for producing a plastic fume tube of a multi-layer structure comprising an outer shell (3) of the outermost layer formed by extruding and bonding to: A raw material inlet 12a for sorting and collecting the collected waste plastic wave support material (PE, nylon, PP, etc.) is formed, and mixed by heating the waste plastic wave support material at a temperature of about 300 ° C. for 3 to 7 minutes while crushing the injected waste plastic wave support material. The primary crushing melter 10c having a double screw portion 14c and a boiler portion (heating burner portion) 14d, and the heated and mixed waste plastic wave support material at the same time are further shredded at about 300 ° C. Waste crushing support material transferred from secondary crushing melter 10b having a double screw portion 14b and a boiler portion (heating burner portion) 14d for continuously heating to a temperature, and a secondary crushing melter 10b. The third melter (10a) for heating to maintain the temperature around 250 ° C and the waste plastic support material in the third melter (10a) while cooling the feed amount controlled by a pair of extrusion roller (19) Distribution box for extruding into tensioner 30 with a constant thickness and width ( An endothelial extruder 10 configured to include 18); The molten waste plastic wave support material extruded from the endothelial extruder 10 is cooled by a cooling means while being formed into a spiral tubular shape by the rotation of the rotary roller 31 and pushed outward from the outer surface of the rotary roller 31. Tensioner 30; And While forming in a spiral tubular shape and cooling, the waste plastic comprising a shell extruder 20 for extruding molten plastic on the outer surface of the tubular endothelial 2 to form the shell 3. Apparatus for producing a plastic fume tube of a multilayer structure using. 3. The tertiary melter (10a) of the endothelial extruder (10) according to claim 1, wherein the tertiary melter (10a) comprises a pair of screwed twinscrew portion (14a) and a cylinder (14 ') surrounding the twinscrew portion (14a) and its By including the boiler portion (heating burner portion) 14d for heating the cylinder 14 ', the remaining mass of the injected waste plastic wave support material is further transported and heated while further grinding, and the input pipe of the tertiary melter 10a In 16), the molten waste plastic wave support material flowing by the electric heaters 14e and 16b is heated and maintained to maintain 250 degrees, and the distribution box 18 adjusts the thickness of the pair of extrusion rollers 19 to adjust the thickness. Apparatus for producing a plastic fume pipe of a multi-layer structure using waste plastic, characterized in that it comprises a control handle (19a) for adjusting.