CN114801119A - Deviation guide device, cooling device and double-row wire manufacturing equipment - Google Patents

Abstract

The invention relates to the field of wire manufacturing, in particular to a deviation guide device for guiding a wire in the process of advancing along a cooling water tank, a cooling device for cooling the wire and double-wire manufacturing equipment. The deflection guiding device provided by the invention can be installed on double-flat-cable manufacturing equipment, so that the double-flat-cable manufacturing equipment can efficiently manufacture double flat cables, and the manufactured double flat cables are not easy to separate and have long service life. The cooling device provided by the invention can be applied to double-flat-cable manufacturing equipment, so that the double-flat-cable manufacturing equipment can efficiently manufacture double flat cables, and the manufactured double flat cables are not easy to separate and have long service life. The double-row-wire manufacturing equipment provided by the invention can efficiently manufacture double rows of wires, and the manufactured double rows of wires are not easy to separate and have long service life.

Description

Deviation guide device, cooling device and double cable manufacturing equipment

technical field

The invention relates to the field of electric wire manufacturing, in particular to a deflection guiding device for guiding electric wires in the process of advancing along a cooling water tank, a cooling device for cooling electric wires, and a double-row wire manufacturing equipment.

Background technique

Existing double-row cables, such as fluoroplastic polymer insulated double-row cables, are mainly composed of two fluoroplastic polymer insulated wires connected side by side. Each fluoroplastic polymer insulated wire includes a conductive wire and is coated on the outside of the conductive wire. of fluoroplastic polymer insulation. There is a fluoroplastic polymer insulated double-row wire manufacturing method. The manufacturing equipment includes a fluoroplastic polymer extruder, and a forming die is installed on the extruder. The forming die includes an inner die and an outer die. There are through holes, and the through holes of the inner mold are aligned with the through holes of the outer mold one by one. After the molding die is closed, there are gaps between the inner and outer dies, and the discharge port of the extruder is connected to these gaps. In this way, the extruder extrudes the high-temperature and hot fluoroplastic polymer through the discharge port, and the fluoroplastic polymer flows along the inside and outside. The gap between the molds flows and flows out of the outer mold from the two through holes of the outer mold. The inner mold is equipped with a pay-off frame, and the pay-off frame simultaneously releases two conductive wires, and the two conductive wires are aligned with the two through holes of the inner mold. Then it passes through the two through holes of the inner mold and the two through holes of the outer mold in turn and protrudes out of the outer mold. outside and form a fluoroplastic polymer insulated wire. If the fluoroplastic polymer insulated wire is to be made into a fluoroplastic polymer insulated double-row wire, it is necessary to water-cool the fluoroplastic polymer insulated wire with equipment such as a cooling water tank after the fluoroplastic polymer insulated wire leaves the extruder. After the fluoroplastic polymer insulated wire is lowered to normal temperature, the two fluoroplastic polymer insulated wires are manually bonded together with glue. After the glue is solidified, the fluoroplastic polymer insulated double row wire is obtained. This manufacturing method has low efficiency, and the prepared fluoroplastic polymer insulated double-column wire is easy to be degummed and separated because it is bonded by glue, and has a short service life.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a deflection guiding device for guiding the electric wires in the process of advancing along the cooling water tank. and the prepared double-arranged cables are not easy to separate and have a long service life.

The invention also provides a cooling device for cooling the electric wire, which can be applied to the double-row wire manufacturing equipment, so that the double-row wire manufacturing equipment can efficiently manufacture the double-row wire, and the prepared double-row wire is not easy to separate. Long service life.

The invention also provides a double-column wire manufacturing equipment, which can efficiently manufacture the double-column wire, and the prepared double-column wire is not easy to separate and has a long service life.

In order to solve the above problems, the present invention provides a deflection guiding device for deflecting electric wires in the process of advancing along the cooling water tank, including a mounting portion for installation and a deflection guiding portion for deflecting the electric wires.

Wherein, the deflecting part can move and/or rotate.

Wherein, a rod-shaped body is included, the mounting portion is provided at the beginning end of the rod-shaped body, and/or the deflection guide portion is provided at the end portion of the rod-shaped body.

Wherein, the deflection guide portion is provided with a bearing seat, the deflection guide portion is sleeved and mounted on the end portion through the bearing seat, and the bearing seat can drive the deflection guide portion to move along the axis of the end portion and rotate around the axis of the end portion.

Wherein, the bearing seat includes a bearing sleeved and installed on the end portion, the deflection guide portion is specifically sleeved and installed on the end portion through the bearing, and the bearing can drive the deflection guide portion to move along the axis of the end portion and around the end portion The axis of the end rotates; and a locking portion for locking the bearing detachably on the end portion is also included.

Among them, there are two locking parts, which are respectively blocked at both ends of the bearing. The locking parts are respectively sleeved on the end part and can move along the axis of the end part; the locking part is opened on its own outer side wall. There is a radial threaded hole leading to its own axis and is equipped with a bolt, the bolt is rotated and screwed into the threaded hole against the side wall of the end part, and the locking part locks the end part in this way.

Wherein, the mounting portion includes a mounting seat, and the mounting seat is provided with a through hole along the axis of the starting end portion of the rod-shaped body; the starting end portion passes through and is accommodated in the through hole, and can move relative to the mounting seat along its own axis and around itself The axis rotates; the side of the mounting seat is provided with a locking threaded hole leading to the through hole and is equipped with a locking bolt, and the locking bolt is rotated and screwed into the locking threaded hole against the side wall of the starting end to lock the starting end.

Wherein, the deflecting part is a guide ring, and the guide ring is provided with a limiting ring groove along its own peripheral side for the passing wires to sink into.

Wherein, the wire is specifically a fluoroplastic polymer insulated wire.

The invention also provides a cooling device for cooling electric wires, including a cooling water tank, the cooling water tank is provided with an inlet and an outlet, respectively, for supplying the wires into the water tank and leaving the water tank, and two wires spaced from each other can enter the tank through the cooling water tank inlet for cooling. , advance side by side along the cooling water tank until it goes out side by side from the outlet of the cooling water tank, and a deflecting device is provided to guide the two wires advancing side by side along the cooling water tank from spaced apart to close to each other.

Wherein, the deflection guiding device is specifically as described above.

Wherein, the deflection guiding device is installed on the cooling water tank.

Wherein, the deflection guiding device specifically conducts deflection guiding for the two wires in the up-down direction.

Among them, there are three deflection guiding devices, which are arranged at intervals.

The present invention also provides a double-row wire manufacturing equipment:

Including a cooling device, the cooling device is provided with an inlet and an outlet;

Consists of an extruder that extrudes two hot wires juxtaposed and spaced from each other toward the inlet of the cooling device, the two wires enter the cooling device through the inlet of the cooling device for cooling, and proceed side by side along the cooling device until juxtaposed from the outlet of the cooling device wear out;

Cooling Device As mentioned above, the deflecting device of the cooling device deflects the two electric wires advancing side by side along the cooling device from being spaced apart from each other to being close to each other.

Wherein, the extruder specifically extrudes two wires that are juxtaposed up and down, and the cooling device is specifically described above accordingly.

Wherein, the extruder is specifically a fluoroplastic polymer extruder.

Beneficial effect: The two hot wires extruded by the extruder need to enter the cooling water tank for cooling after leaving the extruder. The two wires have not been completely cooled when they are deflected, so the two wires are gradually welded together under the action of their own residual temperature after being stuck together, and continue to advance along the cooling water tank to continue to be cooled and cooled down, until the two wires are cooled. When the temperature is lower, it is completely welded together to form a double cable. Since the double-row cable is made by welding two wires at high temperature, the two wires in the double-row cable are not easy to be separated, and the service life is long. In addition, during the cooling process of the wires, the manufacturing equipment uses the deflecting device to make the two separated hot wires close and stick together to promote the two wires to be welded together by the residual heat, and it is not necessary to wait for the wires to be cooled to a level as in the prior art. After normal temperature, the two wires are manually bonded with glue, and the production efficiency is high.

Description of drawings

Figure 1 is a schematic diagram of the structure of the cooling device deflecting two fluoroplastic polymer insulated wires.

Fig. 2 is a schematic cross-sectional view of the manufacturing equipment (the state of the cooling device as shown in Fig. 1 ) guiding two fluoroplastic polymer insulated wires.

FIG. 3 is a schematic structural diagram of a cooling device (a state in which the deflection guide is not adjusted).

FIG. 4 is a schematic view of the structure of the deflection guide device.

FIG. 5 is an exploded view of the mount of FIG. 4 .

FIG. 6 is an exploded view of the deflection guide device of FIG. 4 with the mounting seat hidden.

FIG. 7 is an exploded view of the deflecting device of FIG. 6 from another perspective.

Symbol Description:

1-manufacturing equipment; 11-fluoroplastic polymer extruder; 2-cooling water tank; 21-inlet; 22-outlet; 31-fluoroplastic polymer insulated wire on top; 32-fluoroplastic polymer insulation on the bottom Wire; 4-back deflector; 41-rod body; 411-beginning end; 412-end part; 42-bearing seat; 421-bearing; 422-locking part; 423-threaded hole; 424-bolt ;43-guide ring;431-limiting ring groove;44-mounting seat;441-through hole;442-locking threaded hole;443-locking bolt;5-centering guide device;53-guide ring;531 -Limiting ring groove; 6-Front guide device; 63-Guide ring; 631-Limiting ring groove.

Detailed ways

The present invention will be further described in detail below with reference to the specific embodiments.

The double-row wire manufacturing equipment 1 is shown in Figure 2, including a fluoroplastic polymer extruder 11 and a cooling water tank 2, the cooling water tank 2 has a notch facing upward, and cooling water is placed in the tank. The side wall of the cooling water tank 2 is provided with an inlet 21 and the side wall of the front tank is provided with an outlet 22. The fluoroplastic polymer extruder 11 extrudes two fluoroplastic polymers that are juxtaposed up and down and spaced apart from each other to the inlet 21 of the cooling water tank 2. Material insulated wires 31 and 32. The temperature of the two fluoroplastic polymer insulated wires 31 and 32 was very high when they just left the fluoroplastic polymer extruder 11 and needed to be cooled, so they entered the cooling water tank 2 through the inlet 21, and moved side by side along the cooling water tank 2. One side is cooled by the cooling water in the cooling water tank 2 , and finally passes through the outlet 22 of the cooling water tank 2 in parallel. The existing cooling water tank 2 is usually equipped with a cooling water circulation device (not shown in the figure), which includes a water reservoir (not shown in the figure) and a water return mechanism (not shown in the figure) provided at the outlet 22 of the cooling water tank 2. shown), the cooling water in the cooling water tank 2 exchanges heat with the fluoroplastic polymer insulated wires 31, 32 and then overflows from the inlet 21 of the cooling water tank 2 to the outside of the tank and flows into the reservoir for natural heat dissipation and cooling, and then The water return mechanism extracts and sends it back to the cooling water tank 2. In this way, the cooling water level in the cooling water tank 2 is higher than the lowest point of the inlet 21, which can continue to immerse the two fluoroplastic polymer insulated wires to be cooled in the cooling water tank. The heat in the cooling water tank 2 can be continuously taken out of the tank. It is a conventional technical means in the art to provide a cooling water circulation device for the cooling water tank 2 to achieve the cooling effect, and the specific structure of the device will not be repeated here.

1 and 2, three deflection guide devices 4, 5, and 6 are installed on the top surface of the side wall of the cooling water tank 2. The three deflection guide devices 4, 5, and 6 are arranged at intervals along the cooling water tank 2, and each extends into the cooling water tank 2. In the water tank 2, the two fluoroplastic polymer insulated wires 31, 32 in the cooling water tank 2 that advance side by side along the cooling water tank 2 are guided from the upper and lower intervals of each other to be close to each other. The wires 31 and 32 have not been completely cooled, and the two fluoroplastic polymer insulated wires 31 and 32 are gradually welded together under the action of their own residual temperature. After that, the two fluoroplastic polymer insulated wires 31 and 32 remain welded together. In the state of being together, they continue to advance along the cooling water tank 2 and are cooled by the cooling water. When the two fluoroplastic polymer insulated wires 31 and 32 pass through the outlet 22 of the cooling water tank 2, the two fluoroplastic polymer insulated wires 31 and 32 After being cooled to a lower temperature, it is completely welded together to form a fluoroplastic polymer insulated double-wire.

The deflecting devices 4, 5 and 6 have the same structure. Taking the rear deflecting device 4 as an example, see FIGS. 4 and 6 , the deflecting device 4 includes a round rod-shaped body 41, and the rod-shaped body 41 is “Z” shaped. The axis of the starting end portion 411 of the rod-shaped body 41 and the axis of the end portion 412 of the rod-shaped body 41 are parallel but not collinear. A bearing 421 is provided at the end portion 412 of the rod body, and the bearing 421 covers the end portion 412 of the rod body and can move along the axis of the end portion 412 of the rod body. A guide ring 43 is sleeved on the outside of the bearing 421 to form a guide wheel mechanism. The guide ring 43 is sleeved and installed on the rod end 412 through the bearing 421, and is driven by the bearing 421 to move along the axis of the rod end 412 and rotate around the axis of the rod end 412. . The guide ring 43 is provided with a limiting ring groove 431 along its own peripheral side, and the fluoroplastic polymer insulated wire running tangentially is trapped in the limiting ring groove 431 to be limited and guided. As shown in FIGS. 6 and 7 , a locking portion 422 is provided at each end of the bearing 421 , and the two locking portions 422 have the same structure and are respectively blocked at both ends of the bearing 421 . The center of each locking portion 422 is hollow and is sleeved on the end portion of the rod body 412 , and can move along the axis of the end portion of the rod body 412 and rotate around the axis of the end portion of the rod body 412 . The outer side wall of the locking portion 422 is provided with a radial threaded hole 423 leading to its own axis and is provided with a bolt 424 . The bolt 424 is rotated and screwed into the threaded hole 423 against the side wall of the end portion 412 of the rod body, and the locking portion 422 locks the end portion 412 of the rod body in this way so that it cannot rotate or move relative to the end portion 412 of the rod body; The threaded hole 423 is screwed out until it leaves the side wall of the end portion 412 of the rod body, the locking portion 422 no longer locks the end portion 412 of the rod body, and can move along the axis of the beginning end portion 411 of the stem body and rotate around the axis of the beginning end portion 411 of the stem body. In this way, the two locking portions 422 are locked to the end portion 412 of the rod body through their own bolts 424, and respectively block and clamp the bearing 421 at both ends of the bearing 421, so that the bearing 421 is detachably locked on the end portion 412 . The bearing 421 , the two locking portions 422 and the two bolts 424 together form a bearing seat 42 for the guide ring 43 to be mounted on the end portion 412 of the rod body, and the bearing seat 42 is a split structure.

4 and 5 , a mounting seat 44 is provided at the starting end 411 of the rod body, and the mounting seat 44 is provided with a through hole 441 along the axis of the starting end 411 of the rod body. The starting end 411 of the rod body passes through and is accommodated in the through hole 441, and can move relative to the mounting seat 44 along its own axis and rotate around its own axis. The top surface of the mounting seat 44 is provided with a locking screw hole 442 which leads to the through hole 441 and is provided with a locking bolt 443 . The locking bolt 443 is rotated and screwed into the locking threaded hole 442 against the side wall of the starting end 411 of the rod body to lock the starting end 411 of the rod body, and the starting end 411 of the rod body cannot rotate or move relatively; The locking threaded hole 442 is screwed out until it leaves the side wall of the rod body starting end 411, and the rod body starting end 411 is no longer locked by the mounting seat 44, and can move relative to the mounting seat 44 along its own axis and rotate around its own axis.

The mounting seat 44 is detachably connected to the top surface of the tank wall of the cooling water tank 2 through bolts (not shown in the figure), and the deflection guide device 4 is installed on the cooling water tank 2, and the rod end 412 of the deflection guide device 4 is installed on it together with it. The upper bearing seat 42 and the guide ring 43 extend into the cooling water tank 2 together. The rear deflecting device 4 , the central deflecting device 5 and the front deflecting device 6 have the same structure, and only the positions installed on the top surface of the tank wall of the cooling water tank 2 are different. After the three deflecting devices 4 , 5 and 6 are installed on the cooling water tank 2 as shown in FIG. 3 , the operator installs the cooling water tank 2 together with the three deflecting devices 4 , 5 and 6 mounted on the cooling water tank 2 . To the front of the fluoroplastic polymer extruder 11 , the two fluoroplastic polymer insulated wires 31 and 32 passing through the cooling water tank 2 can be deflected by the three deflecting devices 4 , 5 , and 6 on the cooling water tank 2 . . Before conducting the deflection guide, the operator needs to adjust the positions of the guide rings 43, 53 and 63 of each deflection guide device 4, 5 and 6. Taking the rear deflection guide device 4 as an example, first, the operator loosens the deflection guide The locking bolt 443 of the mounting seat 44 of the device 4 makes it no longer lock the starting end 411 of the rod body. After that, the operator holds the starting end 411 of the rod body to move it relative to the mounting seat 44 along its own axis, thereby driving the end part 412 of the rod body and the The guide ring 43 mounted thereon moves together until the limit ring groove 431 of the guide ring 43 is aligned with the fluoroplastic polymer insulated wires 31 and 32 passing through the cooling water tank 2 . Then, the operator twists the starting end portion 411 of the rod body to rotate relative to the mounting seat 44 around its own axis to drive the end portion 412 of the rod body to rotate together, and the guide ring 43 installed on the end portion 412 of the rod body rises or descends relative to the cooling water tank 2 accordingly. The guide ring 43 moves to the required position. After the guide ring 43 is in place, the operator needs to tighten the locking bolt 443 of the mounting seat 44 of the deflection guide to rotate it into and against the side wall of the starting end 411 of the rod body to lock the starting end of the rod body. 411, the end portion 412 of the rod body is thus also locked. In this state, the operator can fine-tune the position of the guide ring 43 by loosening or tightening the bolts 424 of the bearing seat 42 provided on the end portion 412 of the rod body. The adjustment operation method of the remaining two deflection guide devices 5 and 6 is the same as that of the rear deflection guide device 4. After adjustment, the positions of the guide rings 43, 53 and 63 of the deflection guide devices 4, 5 and 6 are as shown in Figure 2: The guide ring 43 of the rear deflection guide device is attached to the upper groove surface of the limit ring groove 431 and pushes against the lower fluoroplastic polymer insulated wire 32, that is, the lower fluoroplastic polymer insulated wire 32 is guided upward. It is close to the upper fluoroplastic polymer insulated wire 31, and the distance between the two fluoroplastic polymer insulated wires 31 and 32 is reduced; The lower groove surface is attached to and pressed against the upper fluoroplastic polymer insulated wire 31, that is, the upper fluoroplastic polymer insulated wire 31 is guided downward so that it is close to the lower fluoroplastic polymer insulated wire 32. The distance between the fluoroplastic polymer insulated wires 31 and 32 is further reduced; the guide ring 63 of the front deflecting guide device 6 uses its upper groove surface of the limiting ring groove 631 to abut against the fluoroplastic below the living The polymer insulated wire 32 , that is, the lower fluoroplastic polymer insulated wire 32 is guided upward twice to make it completely adhere to the upper fluoroplastic polymer insulated wire 31 . Since the temperature of the two fluoroplastic polymer insulated wires 31 and 32 is still high when they are close to each other, the two fluoroplastic polymer insulated wires 31 and 32 are welded together under the action of their own residual temperature, and the two welded together The fluoroplastic polymer insulated wires 31 and 32 continue to advance side by side, and are gradually cooled by cooling water in the process of going to the outlet 22 of the cooling water tank 2, so that the required fluoroplastic polymer insulated double-wires are produced.

The cooling water tank 2 and the three deflecting devices 4, 5 and 6 installed on it together form a cooling device. The two fiery fluoroplastic polymer insulated wires 31 and 32 spaced apart from each other, and the three deflection guide devices 4, 5 and 6 guide the upper and lower fluoroplastic polymer insulated wires 31 and 32 in the up and down direction. In other embodiments, the fluoroplastic polymer extruder 11 can be changed to extrude two hot fluoroplastic polymer insulated wires that are juxtaposed on the left and right and spaced apart from each other, and the deflection guide device needs to be changed to two left and right lateral deflection guides accordingly. Fluoroplastic polymer insulated wire.

In this embodiment, the starting end portion 411 of the rod body of the deflection guide device is provided with a mounting seat 44 to be used as a mounting portion for mounting with the cooling water tank 2 . In other embodiments, the starting end 411 of the rod body can be directly welded to the top surface of the cooling water tank 2 without the mounting seat 44, and the starting end 411 of the rod body is the mounting part for installation.

In this embodiment, the guide ring 43 of the deflection guide device serves as a deflection guide portion for guiding the fluoroplastic polymer insulated wires 31 and 32 , and is installed on the end portion 412 of the rod body and can rotate around the axis of the end portion 412 of the rod body. In other embodiments, the guide ring 43 can be changed to a fixed non-rotatable arc-shaped bump, and the fluoroplastic polymer insulated wires 31 and 32 can be deduced through the top of the arc-shaped bump.

The above description is only an embodiment of the present invention, and does not limit the scope of patent protection. Those skilled in the art make insubstantial changes or substitutions on the basis of the invention, which still fall within the scope of patent protection.

Claims (17)

1. The deflection guide device for deflecting the electric wire advancing along the cooling water tank is characterized by comprising an installation part for installation and a deflection guide part for deflecting the electric wire.

2. The deflector of claim 1, wherein the deflector is movable and/or rotatable.

3. The device according to claim 2, comprising a rod-shaped body, wherein the mounting portion is provided at a leading end portion of the rod-shaped body, and/or wherein the deflection-guiding portion is provided at a distal end portion of the rod-shaped body.

4. The deflector of claim 3, wherein: for it sets the bearing frame to lead partial, lead partial to establish through this bearing frame and install lead on the tip, the bearing frame can drive lead partial along tip axis removal and around tip axis rotation.

5. The deflector of claim 4, wherein: the bearing seat comprises a bearing sleeved on the tail end part, the deflection guiding part is sleeved on the tail end part through the bearing, and the bearing can drive the deflection guiding part to move along the axis of the tail end part and rotate around the axis of the tail end part; a locking portion is included for releasably locking the bearing to the distal end portion.

6. The deflector of claim 5, wherein: the two locking parts are respectively blocked at two ends of the bearing, and the locking parts are respectively sleeved on the tail end part and can move along the axis of the tail end part; the locking part is provided with a radial threaded hole which internally leads to the axis of the locking part on the outer side wall of the locking part and is provided with a bolt, the bolt is screwed into the threaded hole in a rotating mode to abut against the side wall of the tail end part, and the locking part locks the tail end part in this mode.

7. The deflector of claim 3, wherein: the mounting part comprises a mounting seat, and a through hole is formed in the mounting seat along the axis of the starting end part of the rod-shaped body; the starting end part passes through and is accommodated in the through hole, and can move along the self axis relative to the mounting seat and rotate around the self axis; the side surface of the mounting seat is provided with a locking threaded hole which is internally communicated with the through hole and is provided with a locking bolt, and the locking bolt is screwed into the locking threaded hole to prop against the side wall of the starting end part so as to lock the starting end part.

8. The device according to any one of claims 1 to 7, wherein the deflection-guiding portion is a guiding ring, and the guiding ring is provided with a limiting ring groove along its circumference for trapping a passing electric wire.

9. Deflection guide device according to any one of claims 1 to 8, wherein the wire is in particular a fluoropolymeric insulated wire.

10. A cooling device for cooling electric wire, including the cooling trough, the cooling trough is equipped with entry and export and supplies power line entering basin and leaving the basin respectively, and two electric wires of interval each other can be cooled off in the entering basin entering trough through the cooling trough entry, advance side by side along the cooling trough until wear out side by side from the export of cooling trough, its characterized in that is equipped with and leads the deviation device and lead the deviation to each other and close up each other from the interval each other to two electric wires that advance side by side along the cooling trough.

11. A cooling device according to claim 10, wherein the deflector is as defined in any one of claims 1 to 9.

12. The cooling apparatus of claim 10, wherein the deflector is mounted on the cooling water tank.

13. The cooling device as claimed in claim 10, wherein the deflection guiding means guides the two electric wires in up and down directions.

14. A cooling apparatus as claimed in any one of claims 10 to 13, wherein there are three said deflector means spaced one behind the other.

15. Double-row wire manufacturing equipment:

comprises a cooling device, wherein the cooling device is provided with an inlet and an outlet;

the device comprises an extruder, a cooling device and a control device, wherein the extruder extrudes two parallel and mutually spaced incandescent electric wires to an inlet of the cooling device, the two electric wires enter the cooling device through the inlet of the cooling device for cooling and advance in parallel along the cooling device until the electric wires penetrate out of an outlet of the cooling device in parallel;

the method is characterized in that:

the cooling device as claimed in any one of claims 10 to 14, wherein the deflecting means of the cooling device deflects the two wires running in parallel along the cooling device from being spaced apart to close together.

16. The dual strand manufacturing apparatus of claim 15, wherein: the extruder body extrudes two electric wires which are parallel up and down; the cooling device is accordingly specified in claim 13.

17. The dual strand manufacturing apparatus of claim 15 or 16, wherein the extruder is specifically a fluoroplastic polymer extruder.

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