KR20070104182A - Apparatus for manufacturing a bundle of cables and pipe - Google Patents

Abstract

An apparatus for manufacturing a cable coupled pipe is provided to easily install a cable by manufacturing a protecting pipe with the inserted cable. An apparatus for manufacturing a cable coupled pipe includes a cross head die(10). The cross head die(10) forms a protecting pipe which receives and supports a plurality of cables(c) to separate the plurality of cables(c) from each other, and includes a die body which has a space for flowing synthetic resin for forming the protecting pipe, a head nozzle(20) which is detachably coupled with one side of the die body and forms a mold of the protecting pipe by the synthetic resin, and has a plurality of cable insert holes in the flow direction of the synthetic resin, and a cable guiding member(30) which is detachably coupled to the other side of the die body from at the opposite side of the head nozzle(20) and guides the insert insertion of the plurality of cables(c) to the cable insert hole.

Description

Apparatus For Manufacturing A bundle of Cables and Pipe}

1 is a schematic perspective view of a cable integrated pipe manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a partial cutaway perspective view of the cable integrated pipe manufactured from the manufacturing apparatus of FIG. 1. FIG.

3 and 4 are perspective views showing the crosshead die of FIG. 1 from different directions, respectively.

5 (a) and 5 (b) are front and rear perspective views of the head nozzle, respectively.

6 and 7 are perspective views showing the cable guide members in different directions, respectively.

8 is a diagram illustrating a structure of a crosshead die.

9 and 10 are perspective views illustrating the wrinkle forming machine of FIG. 1 from different directions, respectively.

FIG. 11 is a view showing the structure of the wrinkle molding machine of FIG.

FIG. 12 is a view illustrating a vacuum forming principle of the wrinkle molding machine of FIG.

13A and 13B are front and rear perspective views of a head nozzle according to another embodiment of the present invention, respectively.

* Explanation of symbols for the main parts of the drawings

  1: Cable integrated pipe manufacturing apparatus 5: Extruder

 10 crosshead die 15 resin inlet

 20: head nozzle 30: cable guide member

 35: Cable cooling hose 40: Corrugation molding machine

 45: wrinkle forming member 50: vacuum portion

 60: cooling unit 70: rotary drive unit

100: integrated cable pipe 110: protective pipe

120: outer wrinkles C: cable

  R: Synthetic Resin

The present invention relates to a cable integrated pipe manufacturing apparatus, and more particularly, to a cable integrated pipe manufacturing apparatus in which a cable and a pipe are integrally formed from a manufacturing step.

In general, a cable (Cable) is a general name for electric wires used for power, communication, etc., the cable is composed of a conductor part and a covering part. The conductor part is a part made of copper or aluminum to smooth the electric flow, and the covering part insulates the conductor part and serves to protect it from the external environment, and the part that surrounds the conductor part with materials such as PVC, PE, and rubber. to be.

In the cable, a method of manufacturing a conductor part first in a manufacturing step and then coating an insulating material corresponding to a coating part on the conductor part by an extrusion process or the like is mainly used.

Pipe is a hollow and long pipe. It is mainly used for transporting fluids such as gas and liquid. It is also used to protect wires and cables when wiring in the ground or indoors.

These pipes are usually manufactured by extrusion molding because they have a circular symmetrical shape, and when flexibility such as bending is required, they may be manufactured by forming corrugations on the outer surface in an annular shape or a spiral shape.

On the other hand, in the cable construction site, when laying or installing the cable, rather than installing the cable alone, the pipe piping is laid first, and then several cables are introduced into the pipe and the cable is withdrawn from the other side.

This construction method considers safety by binding several cables through pipe piping or by protecting the cables from the external environment.

However, as described above, since the cables and pipes are released as different products through separate manufacturing apparatuses and manufacturing methods, they have no choice but to separately purchase and combine them.

In addition, since the pipe should be constructed first and then the cable should be constructed by the method of pulling in and drawing out, the work is cumbersome, and when the pipe is bent, the drawing or drawing is difficult.

In order to solve this problem, Korean Patent Registration No.0402368 discloses a technique for manufacturing a cable integrated pipe.

The disclosed technology allows the cable to be automatically drawn inside the pipe, thereby improving productivity, reducing total construction cost and shortening the maintenance time of the cable.

However, in such a conventional cable-integrated pipe manufacturing apparatus, not only is the apparatus complicated, it is not easy to manufacture the cable-integrated pipe, but also a pipe having various structures and shapes cannot be accommodated in the pipe with the cables separated from each other. It is difficult to manufacture, causing various problems such as damage to the cable by high temperature synthetic resin in the manufacturing process.

An object of the present invention is to prevent the electrical safety accident because the cables can be accommodated in the protective pipe spaced apart from each other, and can facilitate the cable construction work because the cable is inserted into the protective pipe. It is to provide a cable integrated pipe manufacturing apparatus that can manufacture a cable integrated pipe with an efficient structure and a simple structure.

Another object of the present invention, the number and number of cables or the structure and shape of the protective pipe for supporting the cable can be implemented in various ways, the cable that can solve a variety of problems, such as damage to the cable by high temperature synthetic resin in the manufacturing process It is to provide a one-piece pipe manufacturing equipment.

It is still another object of the present invention to provide a cable-integrated pipe manufacturing apparatus that can be wrinkled on the outer surface of a pipe and can be easily used for an inclined construction site or a curved construction site.

The object includes, according to the present invention, a crosshead die for forming a protective pipe for receiving and supporting the plurality of cables such that the plurality of cables are spaced apart from each other, the crosshead die for forming the protective pipe therein. A die body in which a flow space through which the synthetic resin flows is formed; A head nozzle detachably coupled to one side of the die body to form a mold of the protection pipe by the synthetic resin, and a plurality of cable insert holes formed along a flow direction of the synthetic resin; And a cable guide member detachably coupled to the other side of the die main body at an opposite side of the head nozzle to guide the insert of the plurality of cables into the cable insert hole. Achieved by the device.

Here, when a selected one of the plurality of head nozzles, each of which has different shapes of resin injection holes forming the outer shape of the protective pipe, is coupled to the die body, various types of protective pipes may be manufactured.

The resin injection hole forming the outer shape of the protective pipe may include: a separation wall injection hole radially formed to form a separation wall spaced apart from the plurality of cables; And it may include a pipe injection hole formed along the circumferential direction at the outer end of the separation wall injection hole.

The cable insert holes are interposed between the partition wall injection holes to effectively separate the cables from each other.

A reinforcing member insertion hole into which a predetermined reinforcing material may be retracted may be further formed in the central region of the resin injection hole.

The cable guide member, the coupling portion coupled to the other side of the die body; And a guide tube protruding a predetermined length with respect to the coupling part and inserted into the die body to guide the cables.

The guide tube may be tapered such that the cross-sectional area gradually decreases toward the head nozzle.

The apparatus may further include a cable cooling unit coupled to the cable guide member to prevent overheating of the cable guided through the cable guide member.

The cable cooling unit may be a cable cable cooling hose wound around the outer surface of the guide tube to flow the cooling water.

The object is, according to the present invention, a plurality of cables to form a wrinkle on the outer surface of the protective pipe that can be accommodated to be spaced apart from each other to include a wrinkle forming machine, the wrinkle forming machine, a vacuum chamber in which a vacuum is formed therein Vacuum housing having; Rotatably coupled to the vacuum chamber, a body portion, a through hole formed along the longitudinal direction of the body portion in the body portion, through which the protection pipe passes, a spiral wrinkle groove portion formed in an outer wall of the through hole, and the body portion A wrinkle forming member having a plurality of through-holes formed therein to communicate with the vacuum chamber and the through-holes; A rotation driving unit for rotating the corrugated molding member; And a vacuum part which forms a vacuum in a part of the plurality of through holes when the wrinkle forming member rotates by the rotation driving part, thereby forming a wrinkle in the outer surface of the protective pipe by the spiral wrinkle groove part. It is also achieved by a cable integrated pipe manufacturing apparatus.

Here, the vacuum unit, a vacuum pump; And a vacuum hose at both ends communicating with the vacuum pump and the vacuum chamber of the vacuum housing.

The plurality of through holes are regularly arranged at predetermined intervals, and a vacuum may be formed in the through holes disposed in the valley portion of the spiral wrinkle groove portion.

The through holes disposed in the valleys of the spiral wrinkle groove portion may be formed to form the outer surface wrinkles by a method in which a vacuum is periodically provided.

The rotary drive unit, a drive motor; A drive sprocket coupled to the rotation shaft of the drive motor; A driven sprocket coupled to the exposed end of the wrinkle forming member; And a belt interconnecting the drive and driven sprockets.

A cooling housing having a predetermined cooling chamber therein and coupled to the vacuum housing; And a cooling unit configured to provide predetermined cooling water to the cooling chamber to cool and solidify the outer wrinkled portion formed through the vacuum housing area.

The cooling unit, the cooling pump; And both ends may be a cooling hose for communicating the cooling pump and the cooling housing to the cooling chamber.

The wrinkle forming member may be disposed over the vacuum chamber and the cooling chamber, and may be detachably coupled to the vacuum housing and the cooling housing.

The object is, according to the present invention, a crosshead die for forming a protective pipe for receiving and supporting the plurality of cables so that the plurality of cables are spaced apart from each other; And it can also be achieved by a creasing machine for forming the outer wrinkles by forming a corrugation on the outer surface of the protective pipe that the plurality of cables are spaced apart from each other.

Here, the crosshead die, the die body is formed therein a flow space in which the synthetic resin for forming the protective pipe flows; A head nozzle detachably coupled to one side of the die body to form a mold of the protection pipe by the synthetic resin, and a plurality of cable insert holes formed along a flow direction of the synthetic resin; And a cable guide member detachably coupled to the other side of the die body at an opposite side of the head nozzle to guide inserting of the plurality of cables into the cable insert hole.

Here, the wrinkle molding machine, a vacuum housing having a vacuum chamber therein is formed; Rotatably coupled to the vacuum chamber, a body portion, a through hole formed along the longitudinal direction of the body portion in the body portion, through which the protection pipe passes, a spiral wrinkle groove portion formed in an outer wall of the through hole, and the body portion A wrinkle forming member having a plurality of through-holes formed therein to communicate with the vacuum chamber and the through-holes; A rotation driving unit for rotating the corrugated molding member; And a vacuum part which forms a vacuum in a part of the plurality of through holes when the wrinkle forming member rotates by the rotation driving part to form a wrinkle on the outer surface of the protective pipe by the spiral wrinkle groove part. It is also achieved by a cable integrated pipe manufacturing apparatus.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a schematic perspective view of a cable integrated pipe manufacturing apparatus according to an embodiment of the present invention, Figure 2 is a perspective view of a cable integrated pipe manufactured from the manufacturing apparatus of FIG.

As shown in FIG. 1, a cable integrated pipe manufacturing apparatus 1 according to an embodiment of the present invention includes an extruder 5 and a crosshead die coupled to an extruder 5 to form a protective pipe 110. 10 and an apparatus for manufacturing the cable-integrated pipe 100 shown in FIG. 2, having a corrugation machine 40 for forming an outer wrinkle part 120 by forming a corrugation on the outer surface of the protective pipe 110. to be.

For reference, the cable-integrated pipe 100 includes a plurality of spaces between the protective pipe 110 of the synthetic resin R formed of the spacer wall 111 and the pipe 112 and the spacer wall 111 of the protective pipe 110. Cable (C) is introduced and the reinforcement 130 is coupled to the center. In addition, the outer surface of the cable integrated pipe 100 is formed with an outer surface portion 120.

Therefore, the cable-integrated pipe 100 manufactured by the manufacturing apparatus of the present invention can prevent the electrical safety accidents caused by the contact between the cables (C) because the cable (C) is drawn between the partition wall 111. .

In addition, since the outer surface of the cable-integrated pipe 100 manufactured by the manufacturing apparatus of the present invention is formed by the outer surface wrinkle portion 120, it is convenient to wind and store and move the cable-integrated pipe 100 in a curved place. Even if it can be constructed, it can be easily constructed.

In the present embodiment, a detailed description of the cable integrated pipe 100 will be omitted, and if necessary, the description of the cable integrated pipe filed by the present applicant will be referred to.

As a result, the cable-integrated pipe manufacturing apparatus 1 of the present embodiment includes a crosshead die 10 that largely forms the protective pipe 110 and a wrinkle forming machine 40 that forms wrinkles on the outer surface of the protective pipe 110. It can be distinguished, as shown in FIGS. 3 to 8 for the crosshead die 10 and 9 to 12 for the corrugator 40. In the following description, a portion of the crosshead die 10 will be described first, and then the wrinkle molding machine 40 will be described.

3 and 4 are perspective views showing the crosshead die of FIG. 1 from different directions, respectively, FIGS. 5A and 5B are front and rear perspective views of the head nozzle, respectively, and FIGS. 6 and 7 are cables. Figures are perspective views showing the guide members in different directions, respectively, Figure 8 is a view showing the structure of the crosshead die.

As shown in these figures, the crosshead die 10 is detachably coupled to the die main body 11, the resin inlet 15 leading from the extruder 5, and the die main body 11 to be introduced. The head nozzle 20 discharging the synthetic resin R and the cable C at the same time, and the detachable coupling to the inside of the die body 11, the plurality of cables (C) is inserted into the cable insert hole 21 of the head nozzle (20) It is provided with a cable guide member 30 for supplying a cable (C) to be discharged. Both sides of the die body 11 are coupled to the head nozzle support portion 12 to which the head nozzle 20 is coupled, and the cable guide member support portion 13 to which the cable guide member 30 is coupled, respectively.

For reference, the extrusion method is generally a molding method useful for continuously producing products having relatively long and generally symmetrical shapes. Since the cable and the pipe have the above-mentioned length and shape, the cable-integrated pipe manufacturing apparatus 1 of the present invention mainly utilizes the extrusion method using this point.

The extruder 5 melts the synthetic resin R, which is the main material of the cable-integrated pipe 100, and melts the synthetic resin R melted in the crosshead die 10 so that the synthetic resin R can be formed into a desired shape. It is a device to supply. The extruder 5 is largely classified into a screw type and a piston type. In this embodiment, it will be described to use the most common screw type extruder (5).

Although not shown in detail, such an extruder 5 includes a hopper for supplying a resin R material, a cylinder through which a material supplied through the hopper is moved and supplied through a screw, and a cylinder from the cylinder. The supplied synthetic resin (R) is provided with a resin inlet (15) flowing into the crosshead die (10).

The die body 11 is connected to the resin inlet portion 15 formed from the extruder 5 as the main frame of the crosshead die 10, and the head nozzle 20 and the cable guide member 30 are detachably coupled to each other. The head nozzle support 12 and the cable guide member support 13 are provided on both sides thereof.

The resin inlet 15 has a flow space (not shown) in which the synthetic resin R for forming the protective pipe 110 flows from the extruder 5 to the die body 11, and the synthetic resin R To be introduced into the crosshead die 10. In the present embodiment, as the main synthetic resin (R), polyethylene, high density polyethylene, or the like may be used. Such materials can freely control electrical insulation, strength, and flexibility.

Therefore, since the cable-integrated pipe 100 is made of a product, it is easy to wind it in the form of a roll, so it is easy to store and move, and can be easily installed even if it is installed in a curved place. Synthetic resin (R) made of such a material is moved from the resin inlet portion 15 to the head nozzle 20 coupled to the die body 11 along the flow space (not shown).

The head nozzle 20 is coupled to one side of the die body 11, in this embodiment is coupled to the head nozzle support portion 12 to be easily removable. The head nozzle 20 forms a molding frame of the protection pipe 110 with the introduced synthetic resin (R), where the cable (C) is drawn in and discharged together with the protection pipe (110).

As shown in detail in FIGS. 5A and 5B, the head nozzle 20 is protected by four cable insert holes 21 through which cables C are individually introduced and a synthetic resin R. A resin injection hole 25 having a spaced wall injection hole 26 and a pipe injection hole 27 formed of a pipe 110 and a reinforcement reinforcing hole 23 formed through the center of the head nozzle 20 are provided. In addition, in the circumferential direction of the head nozzle 20, a plurality of head nozzle coupling holes 29 coupled to the head nozzle support part 12 of the cross head die 10 are provided.

The cable insert hole 21 guides the insert insertion of the plurality of cables C. The cable insert hole 21 is formed to be slightly larger than the size of the cable C so that the cable C can be inserted therein, and the plurality of cables C If they are pulled in, they are pulled in individually. Therefore, in the present embodiment, the four cable insert holes 21 are arranged at regular intervals so that the four cables C can be individually introduced.

The resin injection hole 25 includes a space injection hole 26 formed around the cable insert hole 21 and a pipe injection hole 27 that surrounds the space injection hole 26 and is injected in a pipe shape. do.

The partition wall injection hole 26 is provided with a partition wall 111 of the cable-integrated pipe 100 that substantially separates the cable C so that each cable C passing through the head nozzle 20 does not come into contact with each other. To form (see FIG. 2). The partition wall injection holes 26 are radially formed as shown so that the synthetic resin R injected outside the cables C forms the partition wall 111 having a predetermined thickness. In addition, in consideration of the thickness and type of the cable, the length and shape of the partition wall injection hole 26 can be adjusted so that the cable C is properly fixed and supported.

The pipe injection hole 27 surrounds the partition wall injection hole 26 and is provided in the shape of a circular pipe 112 (see FIG. 2). That is, the synthetic resin (R) injected from the pipe injection hole 27 is in the form of a pipe (112) to prevent the cable (C) introduced from being separated, and serves to protect the cable (C). The pipe injection hole 27 can also adjust the thickness and shape of the pipe injection hole 27 similarly to the partition wall injection hole 26.

The reinforcing material introduction hole 23 is formed through the central area of the resin injection hole 25, and the cable (C) and the synthetic resin (R) can be discharged at the same time as the reinforcement 130 is discharged.

In this embodiment, the reinforcement 130 is used iron or cotton yarn. The cable-integrated pipe 100 produced by using such a reinforcement material 130 appropriately can raise the insufficient strength of the protection pipe 110. In addition, not only the deformation such as bending is easy, but also easy to maintain in a deformed state can be more effective in construction.

However, if necessary, another cable C may be separately inserted into the reinforcing material introduction hole 23 or may be manufactured in the form of a hollow without introducing the reinforcing material 130.

The head nozzle coupling hole 21 allows the head nozzle 20 to be coupled to and separated from the crosshead die 10. Therefore, in the present embodiment, a plurality of head nozzle coupling holes 21 are provided in the head nozzle 20 in order to easily attach and detach, and bolts (not shown) are provided in the head nozzle support part 12 of the cross head die 10. Can be combined to maintain a combined state (see FIG. 3).

The head nozzle 20 having such a configuration can be provided to be detachably attached to the crosshead die 10, which is convenient for maintenance and various protection by replacing the head nozzle 20 of various shapes that are manufactured in advance. The pipe 110 can be manufactured.

Therefore, in the conventional extrusion apparatus, one manufacturing apparatus could produce only one product, while the cable-integrated pipe manufacturing apparatus 1 of the present invention can exchange the head nozzle 20 to one manufacturing apparatus. Various shapes of products can be manufactured at a simple and low cost.

6 and 7, the cable guide member 30 is provided detachably inside the crosshead die 10, at least one cable (C) to the crosshead die (10) The lead serves to guide the cable C to the cable insert hole 21 of the head nozzle 20.

The cable guide member 30 includes a coupling part 31 to which the cable guide member 30 is detachably coupled to the die body 11, and is inserted into the die body 11 to guide the plurality of cables C. A guide tube 33 is provided.

The coupling part 31 allows the cable guide member 30 and the die main body 11 to be detachably coupled to each other. In the present embodiment, the coupling portion 31 has a disk shape provided in a direction perpendicular to the guide tube 33, and a plurality of cable guide member coupling holes 31a are provided.

Therefore, after the guide tube 33 is inserted into the inside of the crosshead die 10, the cable guide member support portion 13 and the coupling portion 31 matched, and then the cable guide member coupling hole 31a is bolted (not shown). To combine.

The guide pipe 33 has a connected long pipe shape through which the cable insertion hole 33a is formed. In the present embodiment, the guide tube 33 has a tapered shape toward the head nozzle 20. This shape of the guide tube 33 takes into account the internal shape of the crosshead die 10, and facilitates the coupling of the cable cooling unit 35 to be described later.

In the cable insertion hole 33a, a plurality of cables C are inserted and supplied to the head nozzle 20. In order to efficiently supply the cable C to the cable insertion hole 33a, the cable C is provided in advance. A wound cable feeder (not shown) may be further provided separately.

Since the cable guide member 30 having such a configuration is detachably coupled to the die main body 11, the cable C using the cable guide member 30 provided separately according to the number and thickness of the cables C has an effect of retracting the cable C. Can increase.

At this time, in the present embodiment, the cable cooling hose 35, the cable cooling hose 35 winding the outer wall of the guide tube 33, and the cable cooling pump supplying cooling water (not shown) to the cable cooling hose 35. (Not shown).

In order to increase the cooling efficiency while effectively winding the outer wall of the guide tube 33, the cable cooling hose 35 is a method of winding the cable cooling hose 35 by overlapping both ends thereof. It is effective if you choose.

In the present embodiment, the cable cooling hose 35 may be made of aluminum or copper pipe material having good cooling efficiency.

The cable cooling unit 35 including the cable cooling hose 35 is the cable guide member 30 in the manufacturing process of the protective pipe 110 after the cable guide member 30 is coupled to the die body 11. It is possible to prevent the problem that can be caused by the cable (C) introduced to the breakage due to overheating or melting of the coating of the cable (C).

In addition, if the material of the guide tube 33 is made of aluminum series having good heat dissipation efficiency, the efficiency of the cable cooling unit 35 described above may be further increased.

By allowing the cable guide member 30 having such a configuration to be detachably coupled to the die body 11, a space spaced between the cable guide member 30 and the die body 11 can be secured. Therefore, the cable cooling unit 35 may be coupled to the space, and the cable cooling unit 35 and the cable guide member 30 may be easily replaced and maintained.

On the other hand, through the crosshead die 10 having the above configuration, if the cable integrated pipe 100 is manufactured, it may be used as it is in the field. However, it is preferable to form the outer pleats 120 on the outer surface of the protective pipe 110 so that the protective pipe 110 can be well wound and stored, or freely installed at the curved construction site.

Therefore, in the present embodiment, the outer surface wrinkle portion 120 is formed in the outer surface of the protective pipe 110 generated from the crosshead die 10 through the wrinkle molding machine 40.

9 and 10 are perspective views showing the wrinkle forming machine of FIG. 1 from different directions, FIG. 11 is a view showing the structure of the wrinkle forming machine of FIG. 9, and FIG. 12 is a vacuum forming principle of the wrinkle forming machine of FIG. Figure is shown.

As shown in these figures, the wrinkle molding machine 40 includes a vacuum housing 51 having a large vacuum chamber 52, a wrinkle molding member 45 rotatably coupled to the vacuum chamber 52, and a wrinkle molding member. The rotary drive part 70 which drives rotation 45 is provided, and the vacuum part 50 which forms the outer surface wrinkle part 120 in the outer surface of the protection pipe 110 is provided.

The vacuum housing 51 includes a vacuum chamber 52 having a vacuum formed therein and a vacuum hose coupling portion 55a protruding from the vacuum chamber 52 to the outside of the vacuum housing 51. The vacuum chamber 52 is in a vacuum state from the vacuum pump 53, which will be described later, and the vacuum hose coupling part 55a is connected to the vacuum pump 53 to a portion connected to the vacuum hose 55, which will be described later.

The wrinkle forming member 45 is vacuum-adsorbed the outer surface of the protective pipe 110, the cable (C) formed through the head nozzle 20 is drawn into the outer surface wrinkle portion 120.

The wrinkle forming member 45 is enlarged in Figure 11, as shown in detail, the body portion 46 rotatably coupled to the vacuum chamber 52, and formed along the longitudinal direction in the body portion 46 to protect The through hole 46 passing through the pipe 110, the spiral wrinkle groove portion 47 formed on the outer wall of the through hole 46, and the body portion 46 is formed in the vacuum chamber 52 and the through hole 46 The through-hole 42 which communicates is provided.

In the spiral wrinkle groove portion 47, the valley portion 47a and the government portion 47b are arranged at regular intervals so as to form the outer surface of the protective pipe 110 into the spiral outer surface wrinkle portion 120, and vacuum in the valley portion 47a. The through-hole 42 formed is arrange | positioned.

The through hole 42 communicates with the vacuum chamber 52 provided in the vacuum housing 51, and the vacuum is concentrated in the through holes 42 in which adjacent ones are skipped.

At this time, the wrinkle forming member 45 is to rotate the inside of the vacuum housing 51, there is provided a rotary drive unit 70 for rotating the wrinkle forming member 45.

As shown in FIG. 1, the rotation driving unit 70 is coupled to the driving motor 71, the driving sprocket 72 coupled to the rotation shaft of the driving motor 71, and the exposed end of the pleating member 45. A driven sprocket 74 and a belt 73 for interconnecting the drive sprocket 72 and the driven sprocket 74.

The outer wrinkle part 120 may be formed on the outer surface of the protective pipe 110 due to the centrifugal force generated when the wrinkle forming member 45 rotates and the vacuum suction by the vacuum part 50. Can be.

That is, the wrinkle forming member 45 rotates the inside of the vacuum housing 51 at a constant speed and direction, and the outer surface of the protection pipe 110 is molded into the outer surface wrinkle part 120 by the vacuum part 50.

The vacuum part 50 forms a vacuum in a part of the plurality of through holes 42 as the wrinkle-forming member 45 rotates, and is formed on the outer surface of the protective pipe 110 by the spiral wrinkle groove part 47. The outer wrinkle part 120 is formed.

As shown in FIG. 1, the vacuum unit 50 includes a vacuum pump 53 and a vacuum hose 55 communicating with the vacuum pump 53 and the vacuum chamber 52 of the vacuum housing 51. The vacuum hose 55 is coupled to the vacuum hose coupling portion 55a coupled to the vacuum housing 51.

 As the corrugated molding member 45 rotates, the through hole 42 formed in the spiral wrinkle groove 47 is vacuum-sucked through the protective pipe 110 passing through the through hole 46a with the vacuum transmitted from the vacuum chamber 52. The outer wrinkle part 120 may be molded.

In order to cool and solidify the cable-integrated pipe 100 having the outer wrinkle part 120 passing through the wrinkle forming member 45, the wrinkle forming machine 40 is provided with a cooling housing 61 and a cooling part 60.

The cooling housing 61 is coupled to the vacuum housing 51 with the cooling chamber 62, and the cooling unit 60 is further provided outside to provide the cooling water to the cooling chamber 62 to provide the vacuum housing 51 region. Cooling and solidification of the molded outer surface portion 120 through.

As shown in FIG. 1, the cooling unit 60 includes a cooling pump 63, a cooling water tank 64 filled with cooling water, a cooling pump 63, and a cooling housing 61. The cooling hose 65 which communicates with is provided. The cooling hose 65 is connected to the cooling hose coupling portion 65a which protrudes out of the cooling housing 61. In this configuration, the cooling water supplied from the cooling pump 63 cools the cooling chamber 62 through the cooling hose coupling part 65a, thereby cooling and solidifying the outer wrinkle part 120.

As shown in FIG. 12, the wrinkle molding member 45 having a plurality of through-holes 42 formed therein is coupled to the wrinkle molding machine 40. In the main body of the wrinkle molding machine 40, there is a vacuum chamber 52 as shown in FIG. 11, and a natural chamber 53 in a natural state other than a vacuum.

As the protection pipe 110 into which the cable C is inserted passes through the spiral wrinkle groove 47, the wrinkle forming member 45 is rotated. Therefore, the through-hole 42 of the wrinkle forming member 45 alternately communicates between the vacuum chamber 52 and the natural chamber 53 of the body of the wrinkle molding machine 40, so that the vacuum suction state is maintained at a constant interval and is repeated. , While forming the outer wrinkle portion 120 to advance the cable-integrated pipe 100 to the spiral wrinkle groove portion 47. The vacuum sucked pipe 112 is formed in the government, and since the valley is formed in the pipe 112 is not vacuum suction, the outer surface of the spiral portion 120 is molded.

Referring to a series of processes in which the cable-integrated pipe 100 is manufactured through the manufacturing apparatus having such a configuration is as follows. For reference, the operation of the crosshead die 10 in which the protection pipe 110 is molded is mainly referred to FIG. 8, and the operation of the wrinkle molding machine 40 in which the outer wrinkle part 120 is formed is described with reference to FIG. 11. Let's do it.

First, the synthetic resin R is introduced from the resin inlet 15 connected to the extruder 5. The introduced synthetic resin R moves to the head nozzle 20 coupled to the die main body 11, and the resin inlet 25 of the separation wall injection hole 26 and the pipe injection hole 27 formed in the head nozzle 20. Is injected into the discharge pipe in the shape of the protective pipe (110). That is, the synthetic resin (R) is discharged in a pipe shape having a space for the cable (C) can be drawn.

Meanwhile, four cables C are introduced into and discharged from the cable insert hole 21 of the head nozzle 20 from the cable guide member 30 coupled to the other side of the die body 11. At this time, the cooling water supplied from the cable cooling hose 35 wound on the outer wall of the guide tube 33 prevents the cable C from overheating, and thus the cable C may be introduced without being damaged.

At the same time, the reinforcement member 130 such as an iron core or cotton yarn may be inserted into the guide tube 33 to be discharged into the reinforcement reinforcing hole 23 of the head nozzle 20.

By implementing the manufacturing apparatus for integrally forming the cable (C) and the pipe 112 in this configuration, it is possible to manufacture a cable-integrated pipe 100 including a protective pipe 110.

At this time, according to the shape of the head nozzle 20 is pre-fabricated and coupled, the shape of the protective pipe 110 is different, as in the present embodiment, the outer surface of the protective pipe 110 may continue like the pipe 112, the present applicant As in another embodiment of the cable-integrated pipe of the present application, the cable C may be manufactured in the shape of a pipe 112 with a slight cut space toward the retracted side.

Next, the cable-integrated pipe 100 manufactured from the crosshead die 10 is drawn into the corrugator.

Inside the wrinkle molding machine 40, a plurality of through-holes 42 are formed through the wrinkle forming member 45 is coupled. In the main body of the wrinkle molding machine 40, there is a vacuum chamber 52 and a natural chamber 53 in a natural state other than a vacuum.

As the protective pipe 110 passes through the spiral fold groove 47, the wrinkle forming member 45 is rotated. Therefore, the through hole 42 of the wrinkle forming member 45 alternately communicates with the vacuum chamber 52 and the natural chamber 53 of the body of the wrinkle molding machine 40 so that the vacuum suction state is maintained at a constant interval and is repeated. .

At this time, the protection pipe 110 is gradually progressed to the through-hole 46a through the spiral wrinkle groove portion 47 while the outer surface wrinkle portion 120 is formed on the outer surface of the pipe 112. Accordingly, the vacuum suction pipe 112 is wrinkled, and since the valley is formed in the pipe 112 that is not vacuum suction, the outer surface of the spiral portion 120 is molded.

The wrinkle molding machine 40 of the present invention can improve the discharge speed than the conventional due to the molding method using the vacuum adsorption, the protruding molding marks remain on the outer surface of the pipe formed by the conventional wrinkle molding machine while the present invention The outer surface of the pipe 112 formed of the wrinkle forming machine 40 is characterized in that the molding marks do not remain as in the prior art.

The cable-integrated pipe 100 passed through the corrugation molding machine 40 may be wound around a winding device (not shown) separately provided and cut and stored to an appropriate length.

As such, when the outer surface of the cable integrated pipe 100 is molded into the outer surface wrinkle part 120 and manufactured integrally, the cable 100 may be easily stored and transported, and may be easily installed at the time of constructing the cable (C).

Therefore, as well as to eliminate the complicated construction process of drawing the cable (C) separately produced by drawing into the pipe as in the prior art, it can be installed without regard to the bent place during construction.

In addition, since each cable (C) is spaced apart from the partition wall 111, it is possible to prevent electrical safety accidents that may occur due to the contact between the cables (C) can be a safe construction.

As such, the cable integrated pipe 100 in which the cable C and the pipe are integrated can be manufactured through the crosshead die 10, and the outer surface wrinkle portion (c) is formed on the outer surface of the cable integrated pipe 100 from the crimping machine 40. 120 can be formed.

Therefore, the conventionally manufactured cable (C) can not only eliminate the complicated construction process of drawing in and out the pipe, but also can be manufactured as a cable-integrated pipe (100) having an outer wrinkle portion 120 formed product It is easy to store and transport, and it can be installed without regard to the curved place during construction.

13 is a perspective view illustrating a head nozzle according to another embodiment of the present invention.

In this embodiment, only the part different from the head nozzle 20 according to the above-described embodiment will be described, and for the other parts, "a" will be further added to the same reference numeral.

As shown in the drawing, in the head nozzle 20a according to another embodiment of the present invention, unlike the above-described head nozzle 20, seven cable insert holes 21a are formed. Accordingly, the shape of the partition wall injection hole 26a is also configured differently.

As the cable C introduced into the seven cable insert holes 21a, a cable C having a diameter slightly smaller than that of the cable C of the above-described embodiment may be introduced, and more cables C need to be introduced. When present, the head nozzle 20a in this embodiment can be used.

In this way, by combining the pre-fabricated head nozzle 20 to the crosshead die 10, it is possible to manufacture a cable integrated pipe 100 of various shapes.

As such, the cable-integrated pipe manufacturing apparatus 1 can easily manufacture the cable-integrated pipe 100 while having a simpler structure than the conventional one, and accommodates the cables C in the pipe 112 while being spaced apart from each other. Since it can be prevented an electrical safety accident, and can facilitate the construction work of the cable (C).

In addition, the number and number of cables (C) or the structure and shape of the protective pipe 110 for supporting the cable (C) can be implemented in various ways, the cable (C) is damaged by the high temperature synthetic resin (R) in the manufacturing process It can solve various problems such as being.

In addition, the outer surface wrinkle portion 120 can be formed on the outer surface of the pipe 112 can be easily used in the inclined construction site or curved construction site.

In the above-described embodiments, the head nozzle 20 having four or seven cable insert holes 21 is described above, but two or five cable insert holes 21 may be provided. The slot 26 may not form a thin-walled injection hole 26 in various designs such as a fan, a hook, and the like, which surrounds the cable C.

In addition, in the above-described embodiments, the cable-integrated pipe having the outer surface wrinkles 120 by forming a corrugation directly on the outer surface of the protective pipe 110, the cable (C) is introduced through the cable-integrated pipe manufacturing apparatus 1 ( Although 100 is described above, an extruder and a crosshead die capable of manufacturing a pipe separately between the crosshead die 10 and the corrugating machine 40 may further include the protection pipe 110 into which the cable C is inserted. The outer surface wrinkles 110 may be formed on the outer surface of another pipe to surround the outer surface.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

As described above, according to the present invention, since the cables can be accommodated in a space separated from each other, it is possible to prevent an electrical safety accident, and the cable construction work is easy because the cable is inserted into the protection pipe. The cable-integrated pipe can be manufactured in an efficient and simple structure.

In addition, the number and number of cables or the structure and shape of the protective pipe for supporting the cable can be variously implemented, and various problems such as damage to the cable due to high temperature synthetic resin in the manufacturing process can be solved.

In addition, the outer surface wrinkles can be formed on the outer surface of the pipe can be easily used for inclined construction site or curved construction site.

Claims (20)

A crosshead die for forming a protective pipe for receiving and supporting the plurality of cables such that the plurality of cables are spaced apart from each other; The crosshead die, A die main body having a flow space through which a synthetic resin for molding the protective pipe flows; A head nozzle detachably coupled to one side of the die body to form a mold of the protection pipe by the synthetic resin, and a plurality of cable insert holes formed along a flow direction of the synthetic resin; And And a cable guide member detachably coupled to the other side of the die main body at an opposite side of the head nozzle to guide insert insertion of the plurality of cables into the cable insert hole. . The method of claim 1, The cable integrated pipe manufacturing apparatus, characterized in that selected one of the plurality of head nozzles each having a different shape of the resin injection hole forming the outer shape of the protective pipe is coupled to the die body. The method of claim 2, The resin spray hole forming the outer shape of the protective pipe, A partition wall injection hole radially formed to form a partition wall spaced apart from the plurality of cables; And Cable integrated pipe manufacturing apparatus comprising a pipe injection hole formed along the circumferential direction at the outer end of the separation wall injection hole. The method of claim 3, The cable insert holes are integrated cable manufacturing apparatus, characterized in that interposed between the partition wall injection holes. The method of claim 4, wherein Cable-integrated pipe manufacturing apparatus, characterized in that the reinforcing material inlet hole that can enter a predetermined reinforcing material is formed in the central region of the resin injection hole. The method of claim 1, The cable guide member, A coupling part coupled to the other side of the die body; And And a guide tube which protrudes a predetermined length with respect to the coupling portion and is inserted into the die body to guide the cables. The method of claim 6, The guide pipe is tapered pipe manufacturing apparatus, characterized in that the tapered so that the cross-sectional area is gradually reduced toward the head nozzle. The method of claim 7, wherein And a cable cooling unit coupled to the cable guide member to prevent overheating of the cable guided through the cable guide member. The method of claim 8, The cable cooling unit is a cable integrated pipe manufacturing apparatus, characterized in that it comprises a cable cable cooling hose which is wound on the outer surface of the guide tube to flow the cooling water. It includes a crimping machine for forming a wrinkle on the outer surface by forming a corrugation on the outer surface of the protective pipe that can accommodate a plurality of cables spaced from each other, The wrinkle molding machine, A vacuum housing having a vacuum chamber in which a vacuum is formed; Rotatably coupled to the vacuum chamber, a body portion, a passage hole formed along the longitudinal direction of the body portion in the body portion, through which the protection pipe passes, a spiral wrinkle groove portion formed on an outer wall of the passage hole, and the body A pleat-shaped member formed in a portion and having a plurality of through holes for communicating the vacuum chamber and the through hole with each other; A rotation driving unit for rotating the corrugated molding member; And When the wrinkle forming member is rotated by the rotary drive unit, by forming a vacuum in a portion of the plurality of through holes characterized in that it comprises a vacuum portion for forming a wrinkle on the outer surface of the protective pipe by the spiral wrinkle groove portion Cable integrated pipe manufacturing apparatus. The method of claim 10, The vacuum unit, Vacuum pump; And The cable integrated pipe manufacturing apparatus, characterized in that the both ends include a vacuum hose in communication with the vacuum pump and the vacuum chamber of the vacuum housing. The method of claim 11, The plurality of through holes, Cable is regularly arranged at a predetermined interval, the cable integrated pipe manufacturing apparatus, characterized in that the vacuum is formed in the through holes arranged in the valley portion of the spiral wrinkle groove. The method of claim 12, Cable integrated pipe manufacturing apparatus, characterized in that the vacuum is periodically provided in the through holes arranged in the valley portion of the spiral wrinkle groove. The method of claim 10, The rotary drive unit, Drive motor; A drive sprocket coupled to the rotation shaft of the drive motor; A driven sprocket coupled to the exposed end of the wrinkle forming member; And And a belt for interconnecting said drive and driven sprockets. The method of claim 10, A cooling housing having a predetermined cooling chamber therein and coupled to the vacuum housing; And And a cooling unit for providing a predetermined cooling water to the cooling chamber to cool and solidify the outer wrinkled portion formed through the vacuum housing area. The method of claim 15, The cooling unit, Cooling pump; And Cable end pipe manufacturing apparatus, characterized in that both ends comprises a cooling hose for communicating the cooling pump and the cooling housing to the cooling chamber. The method of claim 15, The wrinkle forming member, Arranged across the vacuum chamber and the cooling chamber, the cable integrated pipe manufacturing apparatus, characterized in that detachably coupled to the vacuum housing and the cooling housing. A crosshead die for forming a protection pipe for receiving and supporting the plurality of cables such that the plurality of cables are spaced apart from each other; And Cable forming apparatus comprising a corrugating machine for forming the outer wrinkles by forming a corrugation on the outer surface of the protective pipe that can accommodate the plurality of cables spaced apart from each other. The method of claim 18, The crosshead die, A die main body having a flow space through which a synthetic resin for molding the protective pipe flows; A head nozzle detachably coupled to one side of the die body and forming a mold of the protection pipe and having a plurality of cable insert holes formed along a flow direction of the synthetic resin; And A cable guide member which is detachably coupled to the other side of the die main body at an opposite side of the head nozzle to guide the insert of the plurality of cables into the cable insert hole; Device. The method of claim 19, The wrinkle molding machine, A vacuum housing having a vacuum chamber in which a vacuum is formed; Rotatably coupled to the vacuum chamber, A body portion, a through hole formed along the longitudinal direction of the body portion in the body portion, through which the protective pipe passes, a spiral wrinkle groove portion formed in an outer wall of the through hole, and formed in the body portion of the vacuum chamber and the through hole. Corrugated molding member having a plurality of through-holes to communicate with each other; A rotation driving unit for rotating the corrugated molding member; And When the wrinkle forming member is rotated by the rotary drive unit, by forming a vacuum in a portion of the plurality of through holes characterized in that it comprises a vacuum portion for forming a wrinkle on the outer surface of the protective pipe by the spiral wrinkle groove portion Cable integrated pipe manufacturing apparatus.

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