KR20170030126A

KR20170030126A - Heating cable having a uniform caloric value and apparatus for manufacturing heating cable

Info

Publication number: KR20170030126A
Application number: KR1020150126991A
Authority: KR
Inventors: 박종오; 박종화
Original assignee: 씨이에스 주식회사
Priority date: 2015-09-08
Filing date: 2015-09-08
Publication date: 2017-03-17
Also published as: KR101771119B1

Abstract

More particularly, the heating cable according to the present invention includes a heating cable, which is supplied with electricity as a wire and generates electric resistance heat, and a heating cable And the bus wire is clamped at a predetermined interval by a clip so that the hot wire is electrically connected to the bus wire and the clip is clamped at a predetermined interval between the hot wire and the bus wires on both sides And a cover member integrally covering the heating wire, the bus wire, and the connection portion. The apparatus for manufacturing a heating cable according to the present invention as described above is provided with a fixing member A bus wire supply portion in which the bus wires are continuously supplied in parallel to each other, The bus wire supplying unit and the hot wire supplying unit being installed at a rear end of the bus wire supplying unit and the hot wire supplying unit so that the bus wires and hot wires supplied from the bus wire supplying unit and the hot wire supplying unit are maintained at a predetermined interval A holding transferring part for transferring the bus wire and the hot wire on a transferring rail by a predetermined distance on the transferring rail and holding the bus wire and the hot wire to return to their original positions; The clips being pressed to the hot wire and the bus wire continuously supplied from the holding transceiver so that the bus wire is electrically connected to the hot wire at a predetermined interval at a distance at which the hot wire is fed, A compact that is alternately pressed on each bus wire And a cover processing unit which is provided at a rear end of the clamping press unit and is continuously passed through the metal mold and the bus wire and the hot wire to which the clip is pressed, so that the resin is coated on the surface.
According to the present invention, bus wires arranged side by side on both sides of a hot wire and a hot wire are clamped so as to alternate at regular intervals by clips, so that hot wires are connected in parallel with bus wires at regular intervals, There is a distributed effect.
In addition, the heating wire and the bus wire are connected in parallel by clips, and then the whole is covered to simplify the manufacturing process of the heating cable, thereby shortening the manufacturing time of the heating cable and reducing the manufacturing cost.

Description

TECHNICAL FIELD [0001] The present invention relates to a heating cable having a uniform calorific value and a manufacturing apparatus thereof.

More particularly, the present invention relates to a heating cable having a uniform heating value and an apparatus for manufacturing the heating cable. More specifically, bus wires arranged side by side on both sides of a hot wire and a hot wire are clamped in parallel so as to alternate at regular intervals by clips, And more particularly, to a heating cable and an apparatus for manufacturing the heating cable.

Generally, the heating cable is used to generate electric resistance heat in the hot wire by flowing electric current to the hot wire such as carbon fiber, nichrome wire and the like. Such a heating cable can be used for indoor floor heating, snow melting, roof heating And it is applied to various fields such as electricity and electric panels for general households.

In such a heating cable, a positive power source is connected to one end of the heating wire and a negative power source is connected to the other end thereof after the heating wire is connected in series. However, such a serial connection method has a problem in that a constant electric resistance heat is not generated in the entire heating wire .

Thus, two bus wires are coated with an insulator, and a hot wire is wound around the insulator in a spiral shape. Then, the insulator is peeled off at regular intervals to solder the two hot wires and the two bus wires, .

In this way, the hot wires are alternately and parallelly connected to the two bus wires at regular intervals, so that uniform electric resistance heat is generated. However, in order to remove such sheath, the worker manually uses peeling tools such as pliers or nippers The ends of the cover must be cut off and then the ends of the cut cover must be separately peeled off, which leads to the inconvenience of re-soldering.

Accordingly, there has been developed a strip device for peeling a certain section of a cover using a mechanical device without manually performing such a coating, but the stripper is also hardened and then peeled separately, and the process of soldering is still carried out, There is the same problem that the process is very complicated and the heating cable manufacturing cost increases accordingly.

Accordingly, there is an increasing demand for a heating cable and a manufacturing apparatus for the same which overcomes the unreasonable point of the conventional method of manufacturing a heating cable so that the heating wire is connected to the bus wire in parallel with a simple structure so that the heating value is uniformly distributed throughout the heating wire.

Korean Patent No. 1544544

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a plasma display apparatus and a plasma display apparatus in which bus wires arranged on both sides of a hot wire and a hot wire are connected in parallel by clips, have.

Another object of the present invention is to provide a heating cable in which a heating wire and a bus wire are connected in parallel by a clip, and then the whole is continuously covered to simplify the manufacturing process of the heating cable.

According to an aspect of the present invention, there is provided a heating cable according to one aspect of the present invention, including: a heating wire, which is supplied with electricity as a wire rod to generate electric resistance heat; a bus wire arranged in parallel on both sides of the heating wire; The heat wire and the bus wire are clamped at regular intervals by a clip so that the hot wire is electrically connected to the bus wire. The clip has a connecting portion alternately joined at regular intervals between the hot wire and the bus wires on both sides , And a covering member which integrally covers the hot wire, the bus wire, and the connecting portion.

In addition, the hot wire is twisted several times to have a diameter corresponding to the bus wire.

The apparatus for manufacturing a heating cable according to the present invention comprises a bus wire supply unit spaced at a predetermined distance from both sides of the bus cable and continuously supplied with bus wires wound around the drum, A bus wire supplying unit for supplying a bus wire and a hot wire supplying unit to the bus wire supplying unit and the hot wire supplying unit, the hot wire supplying unit being continuously provided between the bus wires and the hot wire supplying unit, A holding transferring part for transferring the bus wire and the hot wire from the holding part to the original position by holding the bus wire and the hot wire by a predetermined distance; So that the clip is continuously held in the holding transporter, And the bus wires are electrically connected to the hot wire, wherein the clips are clamped by a clamping crimping portion which is alternately pressed on each bus wire arranged on both sides of the hot wire, And a cover processing unit which is installed in the mold and on which the resin is coated while the bus wire and the hot wire to which the clip is pressed are continuously passed through the mold.

Here, the bobbin is a cylindrical body, and the hot wire is wound around the outer edge, and is coupled to both end portions of the bobbin, and the hot wire wound from the bobbin by rotating the bobbin in a direction intersecting the both end- The hot wire is continuously fed in a thickness corresponding to the diameter of the bus wire so as to be twisted several times while being unwound by the rotation of the bobbin.

In addition, the clamping crimping portion may include a storage cassette having a plurality of clips spaced apart from the transferring rail by a predetermined distance to compress the heat wire and the bus wire, and a plurality of clips held in the storage cassette, The clips fed from the clip supply body are pushed at regular intervals so as to be alternately clamped on the respective bus wires arranged side by side on the both sides of the hot wire to feed the hot wire and each bus wire And a clamping cylinder in which the heating wire and the bus wire are clamped by the clip so that the clip disposed at the lower part of the heating wire is pressed at the upper part.

In addition, the coating processing unit may include a covered metal mold part completed by a heating cable having a surface coated with the heat wire and the bus wire continuously discharged downward from the upper part of the coated metal mold through which the resin is injected, And a heat curing processing unit disposed at a lower portion of the heating cable and heating and hardening the coating surface of the heating cable while the heating cable is continuously supplied.

Wherein the coated metal mold is formed with a coating passage through which the resin is filled from the upper side to the lower side and the hot wire and the bus wire are continuously inserted into the coating passage from the upper side downwardly and the surface is coated with resin, The coating passageway is inclined at an angle.

Furthermore, grooves are formed in the coating passage at intervals corresponding to the intervals between the bus wires and the hot wires, and the bus wires and the hot wires are guided by the respective grooves and are integrally covered.

According to the present invention, bus wires arranged side by side on both sides of a hot wire and a hot wire are clamped in parallel so as to be alternated at regular intervals by clips, so that a calorific value is uniformly distributed over the entire hot wire.

In addition, the hot wire and the bus wire are connected in parallel by clips, and the whole is continuously covered, thereby simplifying the manufacturing process of the heating cable, shortening the heating cable manufacturing time and reducing manufacturing cost.

1 is a view showing the internal structure of a heating cable having a uniform heating value according to the present invention.
2 is a cross-sectional view of a heating cable having a uniform heating value according to the present invention.
3 is a plan view schematically showing an apparatus for manufacturing a heating cable having a uniform heating value according to the present invention.
4 is a side view schematically showing an apparatus for manufacturing a heating cable having a uniform heating value according to the present invention.
FIG. 5 is a view showing a detailed structure of a holding conveying unit according to the present invention.
Fig. 6 is a view showing a cross-sectional structure of a covering treatment section according to the present invention.
FIG. 7 is a partial perspective view showing in detail the structure of the clamping crimping portion according to the present invention.
8 is a view showing a state in which clips are alternately disposed under the hot line by the clamping position adjusting member according to the present invention.
FIG. 9 is a block diagram illustrating a sequence of supplying a bus wire and a hot wire to an apparatus for manufacturing a heating cable having a uniform heating value according to the present invention.
FIGS. 10 and 11 are views showing details of an operation procedure of clamping with a clip in the clamping crimping portion according to the present invention.

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

FIG. 1 is a view showing an internal structure of a heating cable having a uniform calorific power according to the present invention, and FIG. 2 is a sectional structure view of a heating cable having a uniform calorific value according to the present invention.

Referring to the drawings, a heating cable having a uniform heating value according to the present invention includes a heating wire 10, a bus wire 20, a connecting portion 30, and a covering material.

The heat wire 10 is a wire which is supplied with electricity to generate electric resistance heat, and is generally made of a material such as carbon fiber, nichrome wire, or canal.

The bus wires 20 are arranged in parallel on both sides of the heat wires 10 and are electrically connected to the heat wires 10 by a conductor such as a copper wire or the like so as to supply electricity to the heat wires 10.

The connection section 30 connects the heat wires 10 and the bus wires 20 disposed on both sides of the heat wires 10 to supply electricity to the heat wires 10. [ In the present invention, the connection part 30 compresses the hot wire 10 and the bus wire 20 with the 'U' -shaped clip 31 so that the electricity of the bus wire 20 is transmitted to the hot wire 10. The clips 31 are continuously clamped at regular intervals along the longitudinal direction of the heat ray 10 so as to uniformly generate heat along the longitudinal direction of the heat ray 10.

The clips 31 are mutually alternated between the bus wires 20 disposed on both sides of the heat line 10. The bus wires 20 on one side are connected to the positive electrode and the bus wires 20 on the other side are connected to the minus So that current flows from the positive electrode through the heating wire 10 to the negative electrode so that the heating wire 10 is connected in parallel so that the electric resistance heat is uniformly generated in the entire heating wire.

The covering material 40 is made of a resin material having heat resistance as a non-conductive material, and is generally made of a material such as vinyl chloride, synthetic rubber, polyester, epoxy, or silicone. Such a covering material 40 covers the heat wire 10, the bus wire 20 and the connecting portion 30 integrally as in the sectional structure of Fig.

In the heating cable, the heating wires 10 and the bus wires 20 are covered with the clips 31 at regular intervals, and in particular, the bus wires 20 disposed on both sides are mutually interchanged And a constant current can be supplied to the hot wire 10 at a constant interval to be connected to the hot wire 10 in parallel so that a uniform electric resistance heat is generated in the hot wire 10.

Hereinafter, an apparatus for manufacturing such a heating cable will be described in more detail.

FIG. 3 is a plan view schematically showing an apparatus for manufacturing a heating cable having a uniform heating value according to the present invention, and FIG. 4 is a side view schematically showing an apparatus for manufacturing a heating cable having a uniform heating value according to the present invention. FIG. 5 is a view showing a detailed structure of a holding conveying part according to the present invention, and FIG. 6 is a view showing a sectional structure of a covering processing part according to the present invention.

The apparatus for manufacturing a heating cable having a uniform heating value according to the present invention includes a bus wire supply unit 100, a heat supply unit 200, a holding transfer unit 500, a clamping unit 600, 700 and a take-up unit 800.

The bus wire supply unit 100 is provided with bus wires 20 wound on the drum 110 at predetermined intervals on both sides so as to be continuously supplied in one direction.

The hot wire supplying unit 200 allows the hot wires 10 wound on the bobbin 210 to be continuously supplied between the bus wires 20 arranged side by side in one direction as described above. Here, the bobbin 210 is a cylindrical body, and a hot-wire 10 is wound around the outer periphery of the bobbin 210. The bobbin 210 is coupled to both ends of the bobbin 210 to rotate the bobbin 210 in a predetermined direction.

The twisted yarn rotating body 220 is axially coupled to the motor so as to rotate the bobbin 210 in a direction intersecting with both ends of the bobbin 210 and is rotated by the rotation of the twisted rotating body 220, The hot wire 10 to be continuously wound is twisted to a predetermined thickness corresponding to the diameter of the bus wire 20 and then placed between the bus wires 20 on both sides.

As described above, according to the present invention, the hot wire 10 is separately twisted to twist the hot wire 10 to a predetermined thickness, thereby increasing the strength of the hot wire 10 itself and adjusting the strength of the resistance wire.

Particularly, when holding lines are arranged in three rows of the heating wires 10 and the bus wires 20 in the feeding part 500 by pressing them in a flat plate, they are arranged in three rows by the heat wires 10 and the bus wires 20 So that the same line is evenly pressed to the same diameter so that the same tension is provided to the three lines. Accordingly, any one of the three lines is loosened during the transfer process, so that the gap is not maintained constant and prevented from being changed in advance.

The bus wire 20 and the hot wire 10 are supplied from the bus wire supplying part 100 and the hot wire supplying part 200 and the bus wire 20 and the bus wire 20, Each of the lines is pulled by the plurality of tension rollers 300 so that a constant tension is maintained on each line. Furthermore, the insertion grooves through which the respective lines are inserted along the outer edge of the tension roller 300 are formed at regular intervals, and the heat wires 10 and the bus wires 20 are inserted into the respective insertion grooves to maintain an accurate gap.

The spacing roller 400 is spaced from the front end of the bus wire 20 by a predetermined distance from both ends of the bus wire 20, The wires 20 are supplied so that the bus wires 20 are spaced apart from each other with a predetermined tension according to a spacing distance between the spacing rollers 400.

The holding transfer unit 500 is provided at the rear end of the bus wire supply unit 100 and the heat supply unit 200 so that the lines arranged in three rows of the hot wire 10 and the bus wire 20 The wire is transported to the clamping crimping portion 600 in a state in which it is held to be held.

To this end, the holding conveyance unit 500 includes a conveyance rail 510, a conveyance plate 520 installed on the conveyance rail 510 to be moved back and forth along the longitudinal direction of the conveyance rail 510, And a holding operation body 530 installed on the upper surface of the transfer plate 520 for holding the hot wire 10 and the bus wire 20 by the pneumatic cylinder.

A guide groove 521 is formed in the transfer plate 520 in a direction in which the hot wire 10 and the bus wire 20 are arranged and the gap of the bus wire 20 is extended by the width of the guide groove 521 . The guide grooves 521 may be formed of three grooves at regular intervals so that the respective lines may be inserted.

The guide groove 521 is formed of a groove having a thickness corresponding to or smaller than the diameter of the heat wire 10 and the bus wire 20. The holding operation body 530 is formed on the upper portion of the guide groove 521 by the operation of the pneumatic cylinder, The conveying plate 520 is conveyed along the conveying rail 510 by a predetermined distance in a state in which lines arranged in three rows in close contact with each other are held in the guide groove 521.

The transfer plate 520 is coupled to a chain belt 540 installed at a lower portion and driven by a motor (not shown) so that the transfer plate 520 is moved integrally with the chain belt 540, The motor operation is stopped and the holding operation body 530 is again moved to the upper position to release the three lines that were held by the holding operation body 530. And the motor is driven in the opposite direction so that the transfer plate 520 returns to its original position.

In this manner, the transfer plate 520 holds the three wires supplied from the bus wire supply unit 100 and the heat supply unit 200, transfers the wire to the clamping position, and then returns to the original position. The conveying distance becomes equal to the clamping interval in the clamping crimping portion 600 provided at the back of the transfer plate 520.

The holding clamp 600 presses the heating wire 10 supplied from the holding feeder 500 in order, at a predetermined interval, at which the bus wire 20 and the hot wire 10 are fed at the holding feeder 500, ) And the bus wire (20).

Thus, the bus wire 20 and the hot wire 10 are electrically connected to each other so that current in the bus wire 20 is conducted to the hot wire 10, thereby generating electric resistance heat in the hot wire 10. These clips 31 are pressed and bonded to the respective bus wires 20 disposed on both sides of the heat ray 10 at regular intervals so that one bus wire 20 is connected to the positive electrode and the other bus wire 20 20 are connected to the negative electrode so that current flows from one bus wire 20 to the other bus wire 20 along the hot wire 10.

As described above, the clips 31 electrically connected between the hot wire 10 and the bus wire 20 are clamped at a predetermined interval by the parallel connection method, and the amount of heat generated is uniformly distributed throughout the hot wire 10.

To this end, in the present invention, the lines arranged in three rows in the holding section 500 are conveyed and the feeding of the hot wire 10 and the bus wire 20 is temporarily stopped and the hot wire 10 and the bus wire 20 ) Is clamped and then moved backward. The clamping method of the hot wire 10 and the bus wire 20 will be described in more detail in the operation portion of the clamping crimping portion described later.

The cover processing unit 700 is installed at the rear end of the clamping press unit 600 and the bus wire 20 and the heat wire 10 to which the clip 31 is pressed by the clamping press unit 600 are continuously passed through the mold, And includes a cover metal mold 710 including a cover metal mold 711 into which a resin is injected and a thermal hardener 720 disposed under the cover metal mold 710 .

The coated metal mold 711 is formed with a covering passage 712 through which the resin is filled from the upper side to the lower side and the hot wire 10 and the bus wire 20 are continuously and downwardly directed from inside to the inside of the covering passage 712 The surface is covered with a resin and the heating wire 10 and the bus wire 20 are covered with the heating layer as a whole. A recess 713 is formed in the coating passage 712 at an interval corresponding to the gap between the bus wire 20 inserted from above and the hot wire 10 so that the bus wire 20 and the hot wire 10 Is guided by the groove (713) and is integrally coated.

Inside the coated metal mold 711, a high pressure is formed to inject the resin and extrude the coating, so that the heat ray 10 and the bus wire 20 can not be held at regular intervals while being covered with the resin, A tension is applied to the heating cable that is formed not to penetrate directly downward along the gravity direction but to be inclined at a predetermined angle and to be discharged to the lower right room by the gravity along the coating path 712 to prevent deformation of the cable .

A heating space is formed inside the thermosetting unit 720 so that the heating cable discharged from the covered mold unit 710 directly to the room is continuously supplied to heat and harden the coated surface of the heating cable.

The winding unit 800 transfers the heating cable thus hardened to the winding drum 810 provided at the rear end of the heat hardening unit 720 and winds the heating cable to the winding drum 810.

FIG. 7 is a partial perspective view showing a detailed structure of a clamping pressing part according to the present invention, and FIG. 8 is a view showing a state in which clips are arranged alternately in a lower part of a hot line by a clamping position adjusting member according to the present invention.

Referring to the drawings, a clamping pressing part 600 according to the present invention includes a receiving cassette 610, a clip supplying body 620, a clamping position adjusting member 630, and a pressing cylinder 640.

The storage cassette 610 has a plurality of clips 31 spaced apart from the transfer rail 510 by a predetermined distance and pressing the heat wires 10 and the bus wires 20 in a row.

The clip supply body 620 grasps the clip 31 accommodated in the storage cassette 610 and supplies the clip 31 to the path through which the hot wire 10 and the bus wire 20 are fed. A body 621 and a pull body 622 coupled to one side of the rotating body 621 for picking up and holding the clip 31 seated on the storage cassette 610. The pull body 622 is provided with a clip 31 And the traction body 622 is guided to the seating plate 623 disposed at a lower portion of the path through which the heat ray 10 and the bus wire 20 are fed, The clip 31 is placed on the seating groove 623a of the seating plate 623 so that the clip 31 is disposed below the path through which the heating wire 10 and the bus wire 20 are fed .

The clamping position adjustment member 630 pushes the clips 31 seated on the seating grooves 623a of the seating plate 623 at regular intervals so that the clips 31 can move along the respective bus wires The clamping position adjusting member 630 is alternately clamped to the clamping position adjusting member 20 so that the clips 31 are pushed at different intervals and placed under the heating wire 10.

That is, as shown in FIG. 8A, the bus wire 20 and the hot wire 10 are connected to each other with the clip 31 positioned closer to the clip 31 than the position where the clip 31 is seated on the seating groove 623a The clamping position adjustment member 630 is pushed by a predetermined distance D so that the clip 31 is disposed under the adjacent bus wires 20 and the heat ray 10. [

Next, the clamping position adjustment member 630 is pushed by a predetermined distance D 'to connect the bus wire 20 and the hot wire 10, which are located far away from the clip 31, To be disposed below the wire (20) and the hot wire (10).

In this way, the clamping position adjustment member 630 is adjusted to be pushed so that the clip 31 is alternately connected to each bus wire 20.

The crimping cylinder 640 is formed by pressing the clip 31 disposed at the lower portion of the hot wire 10 in the upper direction so that the hot wire 10 and the bus wire 20 are electrically connected to each other, .

FIG. 9 is a block diagram illustrating a sequence of supplying a bus wire and a hot wire to a manufacturing apparatus for a heating cable having a uniform heating value according to the present invention. FIGS. 10 and 11 illustrate a clamping- And FIG.

Referring to the drawing, a hot wire 10 is drawn out from a hot wire supplying part 200 and supplied continuously while being twisted to form a constant thickness by a twist rotating body 220, and a bus wire supplying part 100 The bus wires 20 are arranged at regular intervals. A plurality of tension rollers 300 are provided on the path to maintain the gap between the hot wire 10 and the bus wire 20 so that the lines are tensioned so that the spacing is not disturbed. When the gap is maintained, the supplied three lines are seated in the guide groove 521 on the transfer plate 520 of the holding part 500, and the holding operation body 530 at the upper part of the guide groove 521 Are moved downward and moved on the conveying rail 510 in a state in which the lines arranged in three rows are compressed so as to maintain a constant interval.

Accordingly, the lines arranged in three rows of the hot wire 10 and the respective bus wires 20 are transported while being held in such a manner that the spacing is maintained, and after the transportation is completed at the predetermined distance L, the holding operation body 530 Moves back up and releases the holding, and the transfer plate 520 returns to its original position.

Thus, the transfer plate 520 is moved by a predetermined distance L, and the transfer distance L is the same distance as the distance at which the clip 31 is clamped. Accordingly, the feed distance L may be arbitrarily adjusted in order to adjust the resistance heat generated in the hot wire 10.

The hot wire 10 and each bus wire 20 conveyed to the clamping press portion 600 are clamped by the clip 31. [ 10 (a), the pulling body 622 grips the clip 31 sequentially disposed on the storage cassette 610 while the pivoting body 621 is moved downward, and then the pivoting body 621 The rotating body 621 is rotated so that the traction body 622 is positioned on the seating plate 623 arranged on the path through which the hot wire 10 and the bus wire 20 are continuously transported, And the rotating body 621 is moved downward again so that the clip 31 is seated on the seating groove 623a of the seating plate 623. [

Then, as shown in FIG. 6C, the rotating body 621 rotates in the home position and the traction body 622 returns to the upper portion of the storage cassette 610 again.

The pulling body 622 thus returned pulls the clip 31 again while moving the rotating body 621 downward, and returns the rotating body 621 upward to its original position.

Then, the clamping position adjustment member 630 is operated as in (d) so that the clip 31 seated on the seating plate 623 is pushed at a constant interval to be connected to any one bus wire 20, (10).

Then, the clamping position adjustment member 630 is returned to the original position as shown in (e), and the rotating body 621 is rotated again as shown in (f) to place the next clip 31 on the seating plate 623 the pressing cylinder 640 is moved downward to press the clip 31 seated on the seating plate 623 to clamp the hot wire 10 and the bus wire 20 as shown in FIGS.

After the clamping is completed, the compression cylinder 640 is moved upward again as shown in (h), and the rotating body 621 is pivoted back to the original position and returned.

Then, the same operation as in (d) is repeatedly performed so that the clip 31 is successively squeezed.

In this way, in the process of clamping the clip 31 to the hot wire 10 and the bus wire 20, the transfer plate 520 is returned to its original position, at which time the holding operation body 530 returns to the upper position, The heat wire 10 and the bus wire 20 can be moved to the covering processing unit 700 provided at the rear end of the clamping crimping unit 600 without holding the bus wire 20 and the bus wire 20, A separate guide plate 651 at the rear end of the guide plate 600 and an urging operation member 652 which is downwardly pressed down from above the guide plate 651, The bus wire 20 can be held by the close operation member 652 in the clamping step. In addition, after the clamping is completed, the holding device causes the heat wire 10 and the bus wire 20 to be transferred from the transmitting part 500 to the clamping part 600 again.

The hot wire 10 and the bus wire 20 thus clamped by the clip 31 are covered while being passed through the inside of the cover metal mold 711 provided at the rear end to complete the heating cable with the insulator. The completed heating cable is inserted into the heat curing treatment section 720 disposed at the lower end of the cover metal mold 711 to be surface heat treated and the cured heating cable is transferred to the winding drum 810 to be wound.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, the scope of the appended claims should include all such modifications and changes as fall within the scope of the present invention.

10: heat wire 20: bus wire
30: connection 31: clip
40: Cover material
100: bus wire supply unit 110: drum
200: heat supply part 210: bobbin
220: rotation body
300: tension roller
400:
500: Holding is transmitted 510: Feeding rail
520: transfer plate 521: guide groove
530: holding operation body 540: chain belt
600: clamping crimping portion 610: storage cassette
620: clip supply body 621: rotating body
622: pull body 623: seat plate
623a: a seating groove 630: a clamping position adjustment member
640: Crimping cylinder 651: Guide plate
652:
700: coating processing part 710: coated metal part
711: Cloth mold 712: Cloth passage
713: groove 720: heat hardening treatment part
800: winding unit 810: winding drum

Claims

A heat wire which is supplied with electricity as a wire rod to generate electric resistance heat,
A bus wire arranged in parallel on both sides of the hot wire,
The thermal wire and the bus wire are clamped at a predetermined interval by a clip so that the hot wire is electrically connected to the bus wire, the clip having a connection portion alternately joined at regular intervals between the hot wire and the bus wires on both sides,
And a covering member integrally covering the heating wire, the bus wire, and the connecting portion.

The method according to claim 1,
Wherein the heating wire is twisted several times so as to have a diameter corresponding to the bus wire.

A bus wire supply unit for supplying bus wires continuously wound on the drum at regular intervals on both sides thereof in parallel;
A hot wire supply unit in which hot wires wound on the bobbin are continuously supplied to the space between the bus wires spaced apart by the predetermined interval;
The bus wire and the hot wire are provided at the rear end of the bus wire supplying part and the hot wire supplying part so that the bus wire and the hot wire supplied from the bus wire supplying part and the hot wire supplying part are held at predetermined intervals, A holding transferring unit for holding the bus wire and the heating wire and returning to the original position;
The clip is pressed onto the hot wire and the bus wire continuously supplied from the holding transceiver at a predetermined interval at a distance at which the bus wire and the hot wire are transferred from the holding transceiver so that the bus wire is electrically connected to the hot wire And the clips are alternately pressed on the respective bus wires arranged on both sides of the hot wire;
And a coating processing unit installed at a rear end of the clamping and pressing unit and having a surface coated with a resin while the bus wire and the hot wire to which the clip is pressed are continuously passed through the inside of the metal mold. .

5. The method of claim 4,
Wherein the bobbin is a cylindrical body, the hot wire is wound around the outer rim,
Further comprising a twist rotation body coupled to both ends of the bobbin and rotating the bobbin in a direction intersecting with both ends of the bobbin to twist a hot wire wound on the bobbin to a predetermined thickness,
Wherein the heating wire is twisted several times while being wound by the rotation of the bobbin, and is continuously supplied with a thickness corresponding to the diameter of the bus wire.

5. The method of claim 4,
The clamping-
A storage cassette having a plurality of clips spaced apart from the transfer rail by a predetermined distance to compress the thermal wire and the bus wire,
A clip supply body for gripping each clip stored in the storage cassette and supplying the clip to a path through which the hot wire and the bus wire are fed,
A clamping position adjusting member for alternately placing the clips transferred from the clip supplying body at a predetermined interval so as to be alternately clamped on each bus wire arranged side by side on both sides of the hot wire, ,
And a compression cylinder in which a clip disposed at a lower portion of the hot wire is pressed at an upper portion and the hot wire and the bus wire are clamped by the clip.

5. The method of claim 4,
The coating processing unit
A covering metal mold completed by a heating cable in which the hot wire and the bus wire are continuously discharged downward from the upper part of the coated metal mold through which the resin is injected,
Further comprising a heat curing treatment unit disposed at a lower portion of the coated metal part to heat and harden the coated surface of the heating cable while the heating cable is continuously supplied.

The method according to claim 6,
Wherein the coated metal mold is formed with a coating passage penetrating from the upper side to the lower side and filled with resin, the heating wire and the bus wire being continuously inserted from the upper side downward into the coating passage,
Wherein the coating passage is inclined at a predetermined angle.

8. The method of claim 7,
Wherein the bus wire and the hot wire are covered with the respective grooves while being guided by the respective grooves, wherein a uniform heating value And the heating cable is connected to the heating cable.