KR20040003253A - Method for plastic drain pipe with multiple wall - Google Patents

Abstract

PURPOSE: An underground-laid synthetic resin pipe manufacturing method is provided to laminate manufactured units molded of a synthetic resin in a molding process so as to improve the structural strength of the pipe. CONSTITUTION: A manufactured inner unit(11) and manufactured outer unit(12) of a synthetic resin are continuously provided for a machine. The manufactured inner unit is wound onto a winding drum(3) in a spiral shape with the manufactured outer unit(12) winding onto the outer surface of the manufactured inner unit. Abutting portions between the outer unit and the inner unit are bonded with an adhesive resin(1) to laminate the manufactured outer unit on the manufactured inner unit, thereby improving the structural strength of a synthetic pipe.

Description

Method for manufacturing structural pipe for synthetic resin embedding {Method for plastic drain pipe with multiple wall}

The present invention is buried in the ground to pass water and sewage, and in particular a synthetic resin buried structural pipes to facilitate the production of large structural rigid products by the method of stacking the pre-formed pre-formed unit as a synthetic resin up and down It relates to a manufacturing method.

Previous buried structural pipes have been mainly used for concrete pipes or cast iron pipes to mechanically handle large loads or earth pressures. It is true that such concrete pipes or cast iron pipes have the advantages of excellent structural rigidity corresponding to earth pressure and load, but due to their material properties, they have problems such as poor handling and constructability due to their material properties, and high production costs due to increased manufacturing costs. Known.

In order to solve the above problems, a structural pipe for embedding synthetic resin, which is manufactured from synthetic resin, has been developed and provided. The synthetic resin embedding structure tube was manufactured by spirally winding a synthetic resin unit extruded from a nozzle of a conventional extruder by winding a wound drum and bonding the surfaces of the synthetic resin units to each other.

According to the method for manufacturing a synthetic resin embedding structure tube, the synthetic resin unit parts extruded from the nozzle of an extruder are joined to produce a structural tube for embedding. And it is true that the workability is good, and because it uses a relatively cheap synthetic resin as a material to reduce the manufacturing cost, it is possible to produce and supply a cheap product.

However, in the conventional manufacturing method of the structural pipe for embedding the synthetic resin, in view of the fact that the synthetic resin unit which is extruded from the nozzle of the extruder and does not maintain its own shape by splicing the synthetic resin unit while spirally wound Since the unit could not be stacked up and down, and the synthetic resin unit had to be manufactured in a single layer, the synthetic resin embedding structure pipe was weak in structural rigidity corresponding to the load, so that large earth pressures such as roads frequently passed by vehicles were applied. In the case of embedding in the place to be operated, there was a problem that the original water supply function was lost due to being severely deformed or damaged without being able to bear the concentrated load or the local load applied from the outside. Of course, as an alternative to solve this problem, there may be proposed a method of manufacturing the resin unit to accommodate a large load by increasing the volume of the resin unit and increasing the thickness of the flesh, but when extruding the resin unit from the nozzle, As the friction resistance is greatly increased as the thickness and thickness are increased, the shape of the synthetic resin unit is disturbed in the manufacturing process, resulting in the inability to manufacture the structural pipe for the resin embedding in the desired form.

An object of the present invention is to manufacture a synthetic resin pre-formed pre-formed unit to be stacked up and down, to increase the structural rigidity corresponding to the first load to obtain a product of excellent quality resin buried structural pipes Second, to provide a method of manufacturing a structural pipe for embedding synthetic resin to significantly improve productivity by improving the overall working conditions according to the manufacturing process.

Figure 1 illustrates a state of manufacturing a structural pipe for embedding the synthetic resin of the present invention

Figure 2 shows a synthetic resin buried structural pipe produced through the manufacturing process of the present invention synthetic resin buried structural pipe

Figure 3 shows another synthetic resin buried structural pipe manufactured through the manufacturing process of the synthetic resin buried structural pipe of the present invention.

Figure 4 illustrates a state of manufacturing a synthetic resin buried structural tube according to another embodiment of the present invention

5 is according to another embodiment of the present invention, which illustrates a structure pipe for embedding a synthetic resin prepared by fitting a ready-made inner unit and a ready-made outer end unit.

Figure 6 according to another embodiment of the present invention, which illustrates a structure pipe for embedding the synthetic resin prepared by interlocking the mating inner unit and the outer end unit.

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

1: adhesive resin 2: dust

10: structure pipe for embedding resin 11: ready-made inner unit

11a: protruding jaw 11b: corner inclined portion

12: ready-made external unit 12a: ridge

12b: Butt end portion 13: Ready endothelial unit

As shown in FIG. 1, the method for manufacturing a structural pipe for embedding synthetic resin according to the present invention may continuously supply the ready-made inner unit 11 and the ready-made outer unit 12 made of a synthetic resin as the material. While winding the inner inner unit 11 in a spiral wound around a conventional wound drum (3) to be wound around the outer outer unit 12 in a spiral form of the inner inner unit, while the adjacent surfaces abut the gel It is characterized in that it is manufactured by bonding as the adhesive resin 1 so that the ready-made inner unit 11 and the ready-made outer unit 12 are stacked up and down.

Such a method of manufacturing a synthetic resin buried structural pipe of the present invention is a synthetic resin buried structural pipe (10) in which the first ready-made inner unit 11 and the ready-made outer unit 12 is stacked up and down as shown in Figs. Since it is manufactured, it is possible to faithfully carry out the original water-passing function by preventing deformation or damage even when buried in a place where large earth pressure or load is applied, such as a road through which the vehicle passes, and the second ready-made inner unit (11) and The simple work process of spirally winding the ready-made external unit 12 makes it possible to quickly manufacture the structural pipes 10 for synthetic resin embedding, thereby significantly increasing the production of products per unit time. To have.

In the figure, reference numeral 6 denotes a pressing roller.

Hereinafter, the technical details of the present invention through the specific embodiments shown in the accompanying drawings in detail.

In the embodiment of the present invention, the ready-made inner unit 11 and the ready-made outer unit 12 are each preformed into the cross-sectional shape of the hollow pipe and wound on the spool 2 to be continuously supplied, and the ready-made The inner unit 11 is wound around the wound drum 3 to be bent in a spiral manner and bonded to the side surfaces which are brought into contact with each other as an adhesive resin 1 applied to the entire outer surface except the inner side, and the ready-made inner unit 11 is connected. The outer surface of the c) is wound around the outer unit 12 in a staggered manner and bonded to each other to join the side to be joined as an adhesive resin (1) applied to one side. Therefore, according to an embodiment of the present invention, a synthetic resin embedding structure in which the ready-made inner unit 11 and the ready-made outer unit 12, which are pre-molded in a cross-sectional shape of a hollow pipe made of synthetic resin, are alternately stacked without gaps vertically. By producing the pipe 10, it has the advantage of further increasing the structural rigidity corresponding to the load.

In one embodiment of the present invention, the ready-made inner unit 11 and the ready-made outer unit 12 is exemplified as being manufactured using a synthetic resin material having a cross-sectional shape of a square pipe.

In addition, the ready-made external unit 12 is illustrated as being manufactured to be stacked in only one layer on the outer surface of the ready-made inner unit 11, but the ready-made outer unit 12, as shown in Figure 3, It turns out that two or more layers can be laminated on the outer surface of the ready-made inner unit 11.

Here, the adhesive resin 1 extends from the extruder 4 installed near the wound drum 3 and is located on the opposite side to which the ready-made inner unit 11 and the ready-made outer unit 12 enter. Extruded in a gel state from the adhesive resin nozzles (5), so that the entire outer surface except the inner surface of the ready-made inner unit 11, and any one side of the ready-made outer unit 12 can be applied.

Figure 4 shows another embodiment of the present invention, the ready-made inner unit 11 and the ready-made outer unit 12 is a cross-sectional shape of the hollow pipe are respectively wound on the tulle (2) to be continuously supplied, The band-shaped conventional endothelial unit 13 wound on the front surface of the ready-made inner unit 11 is wound on the winding drum 3 before the ready-made inner unit 11 and wound in a spiral manner. As the adhesive resin (1) is applied to the entire outer surface except for the side to be joined to the side to be joined, and wound around the inner inner unit 11 in a spiral so as to be spaced apart from each other on the outer surface of the conventional endothelial unit (13) Bonding, and at the same time the adhesive resin 1 is applied to the outer surface of the ready-made inner unit 11, and the ready-made outer unit 12 is spaced apart from each other on the outer surface of the ready-made inner unit (11). Galicia it is a wound in a spiral standing joint. Therefore, according to one embodiment of the present invention, a structural pipe for embedding synthetic resin so that a gap is secured between the ready-made inner unit 11 and the ready-made outer unit 12 which are stacked up and down on the outside of the smooth ready-made endothelial unit 13. By manufacturing (10), it has the advantage of being able to reduce the use of raw materials while having a uniform structural rigidity as a whole.

In another embodiment of the present invention, the adhesive resin 1 extends from the extruder 4 installed in the vicinity of the winding drum (3) into which the ready-made inner unit 11 and the ready-made outer unit 12 enters. Extruded in a gel state from a plurality of adhesive resin nozzles (5) located on the opposite side, the entire outer surface except the inner surface of the ready-made endothelial unit 13 and the outer surface of the ready-made inner unit 11 To give.

And, according to another embodiment of the present invention, as shown in Figure 5, the ready-made outer unit 12 is to have a cross-sectional shape of a square pipe formed with a ridge 12a in the center of the inner surface, Preferably, the ridge 12a of the ready-made external unit 12 is fitted to a gap between the ready-made inner units 11. This is to increase the structural rigidity of the synthetic resin-embedded structural pipe (10) manufactured by fitting the inner inner unit 11 and the outer unit unit 12 wound around the outer surface of the endothelial unit 13 is manufactured by fitting. It helps.

Here, the ready-made inner unit 11 is to have a cross-sectional shape of a square pipe having a protrusion jaw (11a) is bent stepwise to correspond to the thickness of the ready-made endothelial unit 13 in the center of the inner surface, The endothelial endothelial unit 13 is wound and banded in a spiral spaced apart from each other, and the endothelial endothelial unit 13 is sandwiched between the protruding jaws 11a of neighboring old inner unit 11, the synthetic resin produced It turns out that it is possible to further increase the structural rigidity of the dragon structural pipe (10).

In addition, according to another embodiment of the present invention as shown in Figure 6, the ready-made inner unit 11 is to have a cross-sectional shape of a pentagonal pipe formed with a corner inclined portion (11b) on both ends of the outer surface, The ready-made outer unit 12 has a cross-sectional shape of an octagonal pipe having an inclined inclined portion 12b engaged with the inclined portion 11b of the ready-made inner unit 11, so that the ready-made inner units 11 are formed. The inclined portion 11b of the liver and the buttling portion 12b of the ready-made external unit 12 may be joined to each other. This is because the structural rigidity of the synthetic resin embedding structure pipe 10 manufactured by interlocking the conventional inner unit 11 having the cross-sectional shape of the pentagonal pipe and the outer unit 12 having the cross-sectional shape of the octagonal pipe. It helps to increase.

As described above, the present invention increases the structural rigidity by forming and manufacturing the ready-formed pre-molded units stacked up and down as a synthetic resin, so that even when the vehicle is buried in a place subject to a large earth pressure or load, such as a road through which the vehicle passes, Not only does it prevent damage or damage, but it also makes it possible to manufacture the product quickly through a simple work process by bending and stacking the inner and outer units, thereby increasing the yield of the product per unit time. will be.

Claims (6)

It is possible to continuously supply the ready-made inner unit 11 and the ready-made outer unit 12 made of a synthetic resin, and the banded inner unit 11 is wound in a spiral wound around a conventional winding drum 3 in a banding manner. While the ready-made outer unit 12 is wound around the outer surface of the ready-made inner unit in a spiral manner, the adjacent abutting surfaces are joined as the adhesive resin 1 in a gel state to form the ready-made inner unit 11 and the ready-made outer unit. The manufacturing method of the structural pipe for embedding synthetic resin characterized by manufacturing so that 12 may be laminated up and down. According to claim 1, wherein the ready-made inner unit 11 and the ready-made outer unit 12 are each pre-formed in the cross-sectional shape of the hollow pipe and wound on the spool (2) to be continuously supplied to the ready-made inner The unit body 11 is wound around the wound drum 3 to be bent in a spiral shape and bonded to each other to be joined to each other as an adhesive resin 1 applied to the entire outer surface except the inner side, and the ready-made inner unit 11 is connected. The method of manufacturing a synthetic resin embedding structure pipe, characterized in that the outer surface of the outer unit unit 12 is wound in a spiral to be bonded to each other while joining and joining the side to be joined as an adhesive resin (1) applied to one side. . According to claim 1, wherein the ready-made inner unit 11 and the ready-made outer unit 12 is a cross-sectional shape of the hollow pipe so as to be continuously supplied to the winding (2), respectively, the ready-made inner unit (11) The band-shaped conventional endothelial unit 13 wound on the rim 2 in front of the wound around the wound drum 3 before the ready-made inner unit 11 and bent in a spiral manner to the entire outer surface except for the inner side. As the adhesive resin (1) to be applied is joined to the side to be joined, and the spiral wound around the outer inner unit unit 11 to be spaced apart from each other on the outer surface of the inner endothelial unit (13), and at the same time the Adhesion resin 1 is applied to the outer surface of the inner inner unit 11, and the outer outer unit 12 is wound spirally alternately while being folded while being spaced apart from each other on the outer surface of the inner inner unit 11. Hayeoseo method of producing a structure for a synthetic resin pipe buried as claimed. According to claim 1, wherein the ready-made outer unit 12 is to have a cross-sectional shape of a square pipe formed with a ridge 12a in the center of the inner surface, so that the gap between the ready-made inner unit (11) Method for producing a structural pipe for embedding synthetic resin, characterized in that the ridge (12a) of the ready-made external unit 12 is fitted. The method of claim 1, wherein the ready-made inner unit 11 has a cross-sectional shape of a square pipe having a protruding jaw (11a) is bent stepwise to correspond to the thickness of the ready-made endothelial unit 13 in the center of the inner surface. Whereby the endothelial endothelial unit 13 is spaced apart from each other wound and wound in a spiral, the endothelial endothelial unit 13 is characterized in that the fitting between the protruding jaw (11a) of the neighboring existing inner unit (11). Method of manufacturing a structural pipe for embedding synthetic resin. According to claim 1, wherein the ready-made inner unit 11 is to have a cross-sectional shape of a pentagonal pipe having a corner inclined portion (11b) on both ends of the outer surface, the ready-made outer unit 12 is the ready-made inner unit ( 11 has a cross-sectional shape of an octagonal pipe having an inclined portion 12b engaged with the inclined portion 11b, and thus a corner inclined portion 11b between the ready-made inner units 11 and the ready-made outer unit. A method of manufacturing a structural pipe for embedding synthetic resin, characterized in that the buttling portion (12b) of (12) is engaged with each other.