KR19980020873U - Extrusion head device for triple tube extrusion - Google Patents

Abstract

The present invention relates to an extrusion head device for three-tube extrusion molding of synthetic resin material, which is connected to the extruder 200 and has injection ports 111, 121, and 131 at one end thereof, which are infused with molten resin, A, B (115), 125 and the first and second extrusion passages (110), (120), (130) provided with the other end of the flow passage 135, respectively, and the confluence temperature (135) It is configured to extrude the three kinds of tubes having different diameters, including the discharge unit 140 connected to the extrusion and then discharged in a stack. Since the present invention has three kinds of tube forming, coalescing and discharging them in one layer, it is possible to manufacture a tube of triple tissue having different materials of the inner layer, the middle layer and the outer layer, and to obtain a homogeneous product of the triple structure. In addition, since the molding and coalescence of the three kinds of tubes are performed in a single process, the productivity is excellent, and the adaptability to the material change is excellent, thereby obtaining products of various materials.

Description

Extrusion head device for triple tube extrusion

The present invention relates to an extrusion head apparatus for triple tube extrusion molding of a synthetic resin material. In particular, an injection hole connected to an extruder is provided with an injection hole into which molten resin is injected, and a sloped passage and a joining passage are respectively provided at the other end. After molding three kinds of tubes having different diameters by 2 and 3 extrusion passages, and then discharging them in a unitary body at the discharge portion connected to the confluence temperature to produce a composite resin triple tube. It relates to an extrusion head device.

In general, in installing a vinyl house, a plurality of resin tubes are overlapped and overlapped to cover the house frame. Thus, it is not only inconvenient to install a plurality of resin tubes in a construction site, but also difficult to install uniformly. There was a problem.

In addition, a manufacturing machine for forming a synthetic resin tube in plural layers is known, but the conventional manufacturing machine is not able to smoothly process the molding and coalescing process of the three kinds of tubes having different diameters, and the productivity is lowered. There was a problem in that the tube of the triple tissue having different materials of the triple tissue could not obtain a homogeneous product as a whole.

The purpose of the present invention is to connect the extruder is injected into the molten resin is injected into one end of the three kinds of tubes having different diameters by the first, second and third extrusion passages are provided with the inclined flow path and the joining flow passage at the other end, respectively After extruding, the synthetic resin triple tube extrusion molding can be obtained by homogeneous product by a single process by dissolving in a single body in the discharge portion connected to the confluence temperature by a single process, the productivity is improved It is to provide an extrusion head device for.

1 is a partial configuration diagram of a tube manufacturing facility to which the present invention is applied.

Figure 2 is a cross-sectional view showing the configuration of the extrusion head according to the present invention.

3 is a partially enlarged view of FIG. 2;

* Description of the symbols for the main parts of the drawings *

1: Die Body 2: Out Die

3: middle mandrel 4: mandrel

5: inner die 6: control die

7: hexagon bolt 8: collar

9: die cover 14: cover

16: air supply pipe A17: air supply pipe B

21: die block 22: outside shaft

23: inside shaft 110: first extrusion passage

111: injection hole 112: longitudinal flow path A

113: widthwise flow path A114: longitudinal flow path B

115: sloped passage 120: second extrusion passage

121: injection hole 122: longitudinal flow path A

123: width direction flow path A124: longitudinal direction flow path B

125: inclined flow path 130: third extrusion passage

131: injection hole 132: longitudinal flow path A

133: widthwise flow path A134: longitudinal flow path B

135: joining flow path 140: discharge portion

Hereinafter, described in detail by the accompanying drawings of the present invention as follows.

Figure 1 is a partial configuration of the tube manufacturing equipment showing the application of the present invention, Figure 2 is a cross-sectional view of the extrusion head according to the present invention, Figure 3 is a partial enlarged view of Figure 2, first Figure 1 Referring to, the extrusion head 100 according to the present invention is coupled to the extruder 200, the inner portion of the outlet rooftop 300 is a synthetic resin triple tube (T) which is formed by extrusion by the extrusion head 100 V-shaped guide plate 30 is installed to guide the upper portion of the discharge unit rooftop 300, the ejector 40 for raising the discharge to the synthetic resin triple tube (T) and the date printer for printing the date ( 50) is installed.

2 and 3, the extrusion head 100 according to the present invention includes a first extrusion passage 110, a second extrusion passage 120, and a third extrusion passage 130. The first, second, third extrusion passages 110, 120, and 130 are provided with injection holes 111, 121, and 131 at one end thereof, and are connected to the extruder 200, respectively. The other end of the 2,3 extrusion passage 110, 120, 130 is connected to the discharge unit 140, the molten resin supplied from the extruder 200 to the injection holes 111, 121, 131 Is formed as a three-ply tube having a diameter different from each other while passing through the first, second, third extrusion passages 110, 120, 130, and is combined in a discharge tube 140 and discharged.

The out die 2 is coupled to the inside of the die body 1 of the extrusion head 100, the middle mandrel 3 and the mandrel 4 are coupled to the inside of the out die 2, and the mandrel 4 is disposed. An inner die 5 is fastened to a rear portion of the die body, and a control die 6 is coupled to a rear portion of the die body 1 by a fastening member such as a hexagon bolt 7, and the front of the die body 1. The die cover 9 is fastened to the part. Reference numeral 8 is a color.

Band heaters 10, 11, and 12 are coupled to the outer circumferential surfaces of the control die 6, the die body 1, and the die cover 9, respectively, and the mandrel 4 and the inner die 5 are connected to each other. An inner heater 13 is coupled to the inner circumferential surface thereof, and a cover 14 is coupled to the front portion of the mandrel 4.

In addition, an air supply pipe A 16 for supplying external air is coupled to one side of the extrusion head 100, and an air supply pipe B 17 coupled with the air supply pipe A 16 protrudes into the mandrel 4. The front end of the mandrel 16 is coupled to the tee joint 19, the elbow 20 is coupled to both ends of the tee joint 19 via the nipple 18, respectively.

In addition, an assembly of a die block 21, an outer shaft 22, and an in side shaft 23 is coupled to an intermediate portion of the die cover 9.

Band heaters 24, 25, and 26 are respectively formed on the outer circumferential surfaces of the neck portion 27, the die block 21, the outer shaft 22, and the inside shaft 23 of the die block 21. The thermocouple holder 15 is coupled to the circumferential wall of the control die 6, the die body 1, the die cover 9, the neck portion 27, the die block 21 and the inside shaft 23. Each one is fixed.

The first extrusion passage 110 includes an injection port 111 to which an extruder 200 is connected, a longitudinal flow path A 112 formed by a die block 21 and an outer shaft 22, and a die cover 9. ), The widthwise flow path A 113 and the longitudinal flow path B 114 formed by the die body 1 and the out die 2, and the inclined surface 1a and the out die 2 of the die body 1. It consists of the inclined flow path A115 formed by the inclined surface 2a.

The second extrusion passage 120 includes an injection hole 121 connected to the extruder 200, a longitudinal flow path A 122 formed by an outer shaft 22 and an inside shaft 23, and an out die ( 2) and the longitudinal flow path A 123 and the longitudinal flow path B 124 formed by the middle mandrel 3, the inclined surface 1a and the middle mandrel 3 of the out die 2 are provided on the inclined surface 3a. It consists of the inclined flow path B125 formed by it.

The third extrusion passage 130 includes an injection hole 131 connected to the extruder 200, a longitudinal flow path A 132 formed inside the inside shaft 23, the middle mandrel 3, and a mandrel. The widthwise flow path A 133 and the longitudinal flow path B 134 formed by (4), the inclined surface 1b of the die body 1, the inclined surface 6a of the control die 6, and the middle mandrel 3 It is comprised by the joining flow path 135 which consists of the inclined surface 3b of the () and the recessed surface 5a of the inner die 5.

The inclined flow path B 125 has a larger width than the inclined flow path A 115, and the joining flow path 135 is formed to have a wider space than the inclined flow path B 125.

The discharge part 140 is formed by the control die 6 and the inner die 5, and the confluence path 135 of the third extrusion passage 130 is connected to the discharge part 140.

Referring to the effects of the present invention as described above are as follows.

When the molten resin is supplied from the extruder 200 to the inlets 111, 121, and 131 of the first, second, and third extrusion passages 110, 120, and 130 by a predetermined pressure, the molten resin is melted. The resin is a longitudinal flow path A (112), 122, 132 of the first, second, third extrusion passages (110), 120, 130, width direction flow paths A (113), (123), 133, the longitudinal flow paths B 114, 124, 134, the inclined flow path A 115, the inclined flow path B 125, the confluence flow path 135, and the discharge part 140, It is molded into three kinds of tubes with different diameters, and then combined and discharged in one layer.

That is, a large diameter outer tube is formed through the first extrusion passage 110 and the inclined flow path A 115, and an intermediate diameter tube having a middle diameter is formed through the second extrusion passage 120 and the inclined flow path B 125. After the small diameter tube is formed through the third extrusion passage 130, the large diameter tube discharged from the inclined flow path A 115 overlaps the medium diameter tube while passing through the inclined flow path B 125. While passing through the confluence passage 135 again, it is discharged from the discharge unit 140 as three kinds of tubes overlapped with a small diameter tube and combined into three layers.

Then, the synthetic resin triple tube (T) discharged in this way is inflated by the air supplied through the elbow 20 of the air supply pipe B (17) and folded through the V-shaped guide plate 30 of the manufacturing facility of FIG. The manufacturing date is printed by the date printer 50 and discharged through the upper discharger 40.

As described above, the present invention synthetic resin triple tube extrusion molding apparatus has three kinds of tube moldings, which are combined and discharged in one layer, so that the tubes of triple tissues having different materials of inner layer, middle layer, and outer layer are different. It is possible to manufacture the product, to obtain a homogeneous product of the triple structure, and to perform the molding and coalescence of three kinds of tubes in a single process, the productivity is excellent, and the adaptability to the material change is excellent, products of various materials There is an effect that can be obtained.

Although the embodiments of the present invention have been described so far, the present invention is not limited thereto, and various embodiments that can be modified and changed within the true spirit and scope of the principles described and claimed are within the protection scope of the present invention. You will have to understand.

Claims (3)

Injection ports 111, 121, and 131 connected to the extruder 200 to inject molten resin are provided at one end thereof, and the inclined flow paths A, B 115, 125, and the joining flow path 135 are provided. Three kinds of tubes having different diameters, including first, second and third extrusion passages 110, 120, and 130 respectively provided at the ends, and discharge portions 140 connected to the confluence passage 135. The extrusion head apparatus for a triple tube extrusion molding of a synthetic resin material, characterized in that configured to be extruded and then discharged in a monolayer. The lengthwise flow path A (112) of claim 1, wherein the first extrusion passage (110) is formed by an injection hole (111) to which an extruder (200) is connected, a die block (21), and an outer shaft (22). And the widthwise flow path A 113 and the longitudinal flow path B 114 formed by the die cover 9, the die body 1, and the out die 2, the inclined surface 1a of the die body 1, An inclined flow path A 115 formed by the inclined surface 2a of the out die 2, and the second extrusion passage 120 includes an inlet 121 connected to the extruder 200, and an outer shaft 22. And the longitudinal flow path A 122 formed by the inner side shaft 23 and the widthwise flow path A 123 and the longitudinal flow path B 124 formed by the out die 2 and the middle mandrel 3 , The inclined surface 1a of the out die 2 is composed of an inclined flow path B 125 formed by the inclined surface 3a of the middle mandrel 3, and the third extrusion passage 130 is connected to the extruder 200. A widthwise flow path A 133 formed by the injection hole 131, the longitudinal flow path A 132 formed inside the in-side shaft 23, the middle mandrel 3 and the mandrel 4, and The longitudinal flow path B 134, the inclined surface 1b of the die body 1, the inclined surface 6a of the control die 6, the inclined surface 3b of the middle mandrel 3 and the yaw of the inner die 5 And a conduit flow path 135 formed by the elevation surface 5a, and the confluence flow path 135 is connected to the discharge part 140 formed by the control die 6 and the inner die 5, respectively. Extrusion head device for triple tube extrusion of synthetic resin material. According to claim 1, Out die (2) and the middle mandrel (3) and the mandrel (4) is coupled to the inside of the die body (1), the inner die (5) is fastened to the rear of the mandrel (4), The control die 6 is fastened to the rear part of the die body 1, and the die cover 9 is fastened to the front part of the die body 1, and the cover 14 is fastened to the front part of the mandrel 4. An air supply pipe A 16 coupled to and connected to an air supply pipe A 16 for supplying external air protrudes into the mandrel 4, while a die block 21 is provided at an intermediate portion of the die cover 9. And, the assembly of the outer shaft 22 and the in-side shaft 23 is coupled, the inclined passage B (125) has a larger width than the inclined passage A (115), compared to the inclined passage B (125) Joining flow path 135 is an extrusion head device for the triple tube extrusion molding synthetic resin, characterized in that formed to have a wide space.