CN107256742B - Processing method of FFC with variable conductor section - Google Patents

Abstract

The invention belongs to the technical field of FFC, and particularly relates to a processing method of a novel FFC with a variable energy conductor section. The technical problems that short circuit is easy to occur due to small spacing of flat conductors in the prior art are solved. The processing method of the FFC with the variable conductor section comprises the following steps: feeding, calendaring, interval adjustment and material taking. The distance between the rolling wheels is adjusted to be increased or decreased, so that conductors with different thicknesses are processed, two ends of each conductor are flat, the middle of each conductor is eccentric, the distance between the conductors in the FFC flexible flat cable can be increased, and short circuits can be avoided better. Compared with the prior art, the invention has the advantages that: the processing is convenient, and the conductor is not easy to be short-circuited.

Description

Processing method of FFC with variable conductor cross section

technical field

The invention belongs to the technical field of FFC, and in particular relates to a processing method of FFC with variable conductor cross section.

Background technique

The circuit connection of many electrical components uses ordinary wires. However, the stability of the wires is poor, and it is easy to short-circuit and leak electricity. In dense circuits, the connection of ordinary wires is easy to cause complex winding of the wires, which is difficult in maintenance and installation. Therefore, it is used in some special circuits. FFC flexible flat cables replace ordinary wires, and the most common ones are on integrated motherboards in computer hosts, or in other dense circuits.

The traditional FFC flexible flat cable is usually a flexible flat cable that presses the conductor into a flat shape and then arranges it to form multiple lines. As shown in Figure 4, the processed wire is a flat long strip conductor. After flattening, the thickness decreases, and the width increases, and the distance between the conductors arranged with each other is closer, which is easy to cause a short circuit.

In order to solve the problems existing in the prior art, people have carried out long-term exploration and proposed various solutions. For example, the Chinese patent document discloses an FFC wire structure [Application No.: 201320174922.5], which includes an FFC wire body, a hot-melt adhesive layer attached to the assembly position of the FFC wire body and the connector, and the surface of the hot-melt adhesive layer is pasted Comes with self-adhesive double-sided tape.

The above-mentioned solution improves some problems of the prior art to a certain extent, but this solution also has at least the following defects: the small spacing between the flat conductors is likely to cause a short circuit.

Contents of the invention

The object of the present invention is to solve the above problems and provide a processing method for a variable conductor section FFC with increased conductor spacing.

In order to achieve the above object, the present invention adopts the following technical solutions: the processing method of the variable FFC of the conductor cross-section comprises the following steps:

A. Feeding: Place the end of the conductor on the calendering aisle between the first calendering wheel and the second calendering wheel, and keep the conductor perpendicular to the first calendering wheel and the second calendering wheel. Keeping the conductor at 90° enters between the first calendering wheel and the second calendering wheel, thereby ensuring the stability of calendering and the thickness of calendering. The first calendering wheel and the second calendering wheel are two calendering wheels with the same outer diameter and length.

B. Calendering: Turn on the calendering wheel driving mechanism that drives the first calendering wheel and the second calendering wheel, so that the first calendering wheel and the second calendering wheel rotate at the same speed in the opposite direction, and the conductor is calendered; the calendering wheel driving mechanism can drive the second calendering wheel The first calendering wheel and the second calendering wheel maintain the same linear speed and ensure that they rotate in opposite directions, so the rotational friction force can drive the conductor between the first calendering wheel and the second calendering wheel to move forward while being calendered.

C. Spacing adjustment: through the calendering adjustment mechanism, move the first calendering wheel to adjust the width of the calendering aisle, thereby changing the thickness of the conductor calendering. This step can be repeated when it needs to be adjusted again; the calendering adjustment mechanism can increase or decrease the second The distance between the first calendering wheel and the second calendering wheel changes the thickness of the rolled conductor, so that the axial thickness of the same conductor is different.

D. Feed: Close the calender wheel drive mechanism and take out the conductor.

In the above-mentioned processing method of FFC with variable conductor cross-section, the first calendering wheel and the second calendering wheel are placed on the support, and the calendering adjustment mechanism is arranged on the support and can drive the first calendering wheel away from Or the calender wheel moving structure close to the second calender wheel.

In the above-mentioned processing method of variable conductor cross-section FFC, the moving structure of the rolling wheel includes a first wheel frame slidably arranged on the bracket and a transmission assembly arranged on the first wheel frame, and the first rolling wheel The axial rotation of the first wheel frame is provided on the first wheel frame, and the first wheel frame is provided with a first telescopic rod and a second telescopic rod parallel to each other.

In the above-mentioned processing method of variable conductor cross-section FFC, the transmission assembly includes a first worm wheel fixed on the upper end of the first telescopic rod and a first worm meshed with the first worm wheel, and the transmission assembly also includes a first worm wheel fixed on the second The second worm gear at the upper end of the telescopic rod and the second worm meshed with the second worm gear, the first worm and the second worm are hollow and located on the same axis, the middle parts of the first worm and the second worm are axially passed through the same On the connecting shaft, the outer wall of the connecting shaft is keyed to the inner wall of the second worm, the outer wall of the connecting shaft is slidingly connected to the inner wall of the first worm, and the two ends of the connecting shaft respectively extend out The outer ends of the first worm and the second worm, the end of which the connecting shaft is located on the side where the first worm is located has a locking structure which fixes the first worm and the connecting shaft in the circumferential direction, and the connecting shaft is located at the second worm The end of one side has a worm drive motor that drives the connecting shaft to rotate in the circumferential direction.

In the above-mentioned processing method of FFC with variable conductor cross-section, the first telescopic rod includes a first fixed rod with one end fixed on the outer wall of the first wheel frame and a first rotating rod screwed to the first fixed rod, so The other end of the first rotating rod is passed through the axis of the first worm wheel and fixed; the second telescopic rod includes a second fixed rod with one end fixed on the outer wall of the first wheel frame and a second fixed rod connected with the second fixed rod. A screw-connected second rotating rod, the other end of which is passed through the shaft center of the second worm wheel and fixed.

In the above-mentioned processing method of FFC with variable conductor cross-section, the locking structure includes a disc component arranged at the end of the connecting shaft on the side where the first worm is located, and the inner side of the disc component is connected to the end of the first worm Fixed, the outer side of the wafer component has a locking nut screwed on the connecting shaft to lock the wafer component on the connecting shaft.

In the above-mentioned processing method of variable conductor cross-section FFC, the inner disc set on the connecting shaft and fixed to the outer end of the first worm, and the inner disc set on the outer side of the inner disc and keyed to the connecting shaft connected outer disc, and the lock nut is screwed on the outer side of the outer disc.

In the above-mentioned processing method of FFC with variable conductor cross-section, the inside of the first rolling wheel and the second rolling wheel are hollow, and the outer ends of the first rolling wheel and the second rolling wheel are respectively provided with water-cooled reflux devices.

In the above-mentioned processing method of variable conductor cross-section FFC, the described rolling wheel driving mechanism includes a motor connected to the first rolling wheel and the second rolling wheel, and the described motor has a gearbox, and the gearbox can be The displacement output shaft is fixed with the first rolling wheel and rotates coaxially.

Compared with the existing technology, the advantage of this FFC processing method with variable conductor cross-section is that the step of adjusting the spacing of the rolling wheels is added in the rolling process, and the spacing between the rolling wheels can be increased or decreased in a controllable manner, thereby controlling the calendering process. The thickness of the obtained conductor, and the two ends of the conductor are flattened, and the middle part is appropriately increased in thickness to process an approximately circular cross section, which can reduce the distance between adjacent conductors and avoid the occurrence of short circuits.

Description of drawings

Fig. 1 is a schematic diagram of the structure provided by the present invention.

Fig. 2 is a sectional view of the transmission assembly provided by the present invention.

Fig. 3 is a partial schematic diagram of the transmission assembly provided by the present invention.

Fig. 4 is the conductor distribution shape in the common FFC.

Fig. 5 is the distribution shape of FFC conductors in the present invention.

Fig. 6 is a comparison diagram of conductor overlap in a common FFC and the FFC of the present invention.

Fig. 7 is a schematic diagram of an FFC conductor processed by the present invention.

In the figure, the first calender wheel 1, the second calender wheel 2, the calender aisle 3, the calender wheel drive mechanism 4, the calender adjustment mechanism 5, the bracket 6, the calender wheel moving structure 7, the first wheel frame 8, and the first telescopic rod 9 , the second telescopic rod 10, the transmission assembly 11, the first worm gear 12, the first worm screw 13, the second worm gear 14, the second worm screw 15, the connecting shaft 16, the locking structure 17, the worm drive motor 18, the first fixed rod 19, The first rotating rod 20, the second fixed rod 21, the second rotating rod 22, the disc assembly 23, the locking nut 24, the inner disc 25, the outer disc 26, the water-cooled return device 27, the motor 28, the gearbox 29, The output shaft 30 is displaceable.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-7, the processing method of the FFC with variable conductor cross-section includes the following steps:

A. Feeding: Place the end of the conductor on the calendering aisle 3 between the first calendering wheel 1 and the second calendering wheel 2, and keep the conductor perpendicular to the first calendering wheel 1 and the second calendering wheel 2; There is a certain initial distance between the calendering wheel 1 and the second calendering wheel 2, so as to keep the calendering channel 3 at the distance required for the processed thickness of the conductor end. However, in this embodiment, the end of the processed conductor is flat, so relatively speaking, the calendering passage 3 is relatively narrow, so the calendered thickness of the processed conductor is relatively small.

B. Calendering: Turn on the calendering wheel drive mechanism 4 that drives the first calendering wheel 1 and the second calendering wheel 2, so that the first calendering wheel 1 and the second calendering wheel 2 rotate at the same speed in the opposite direction, and the conductor is calendered; When the wheel drive mechanism 4 is used, the two rolling wheels are driven to rotate in reverse, and the conductor is transported from one side of the two to the other side of the two, and the rolling is carried out simultaneously.

C. Spacing adjustment: through the calendering adjustment mechanism 5, the first calendering wheel 1 is moved to adjust the width of the calendering aisle 3, thereby changing the thickness of the conductor calendering. This step can be repeated when it needs to be adjusted again; the end of the conductor is processed. Finally, when processing the middle part of the conductor, it is necessary to increase its thickness, and even press the conductor into an approximately circular elliptical shape, thereby reducing the distance between adjacent conductors in the FFC flexible cable, thereby avoiding short circuits. Therefore, it is necessary to move the first calendering wheel 1 away from the second calendering wheel 2 without interrupting the calendering work. After the movement is completed, the distance of the calendering aisle 3 increases, and the thickness of the conductor obtained by calendering increases. Similarly, when processing to the other end of the conductor, it is necessary to reduce the pitch of the calendering channel 3 so that its end is processed into a flat shape. Similarly, it is only necessary to move the first calendering wheel 1 close to the second calendering wheel 2 to the desired position. .

D. Taking material: close the calender wheel driving mechanism 4 and take out the conductor.

As shown in Figure 4, the conductors in a common FFC are flat and arranged closely. As shown in Figure 5, the thickness of the conductor in this embodiment is increased when the middle part is rolled, so that the middle part of the rolled conductor is approximately circular (actually approximately elliptical), as shown in Figure 6, it can be seen intuitively , the same number of conductors of the same FFC, the distance between the conductors in this embodiment is greatly increased, thereby greatly avoiding the occurrence of short circuits.

Specifically, the first calendering wheel 1 and the second calendering wheel 2 are opposite to each other on the support 6, and the calendering adjustment mechanism 5 is provided on the support 6 and can drive the first calendering wheel 1 away from or close to the second calendering wheel. 2. The moving structure 7 of the calendering wheel. The calender wheel moving structure 7 includes a first wheel frame 8 slidably arranged on the bracket 6 and a transmission assembly 11 arranged on the first wheel frame 8, and the axial rotation of the first calender wheel 1 is set on the first wheel frame 8, the first wheel frame 8 is provided with a first telescopic rod 9 and a second telescopic rod 10 parallel to each other. The first rolling wheel 1 is lifted by lifting the first wheel frame 8 , and the lifting action is completed by the extension and compression of the first telescopic rod 9 and the second telescopic rod 10 .

Further, the transmission assembly 11 includes a first worm gear 12 fixed on the upper end of the first telescopic rod 9 and a first worm 13 meshed with the first worm gear 12, and the transmission assembly 11 also includes a first worm wheel 13 fixed on the upper end of the second telescopic rod 10. The second worm gear 14 and the second worm 15 engaged with the second worm gear 14 . The first worm 13 and the second worm 15 are hollow and located on the same axis, the middle parts of the first worm 13 and the second worm 15 are axially threaded on the same connecting shaft 16, and the outer wall of the connecting shaft 16 is connected to the second The inner walls of the two worms 15 are keyed, so the rotation of the connecting shaft 16 can directly drive the second worm 15 to rotate, thereby driving the rotation of the second worm wheel 14 .

Particularly emphasized, the outer wall of the connecting shaft 16 is slidingly connected with the inner wall of the first worm 13, so when the connecting shaft 16 rotates, it cannot directly drive the first worm 13 to rotate, and the two ends of the connecting shaft 16 respectively extend Outer ends of the first worm 13 and the second worm 15 , the end of the connecting shaft 16 on the side where the first worm 13 is located has a locking structure 17 that fixes the first worm 13 and the connecting shaft 16 circumferentially. Only after the locking structure 17 fixes the first worm 13 and the connecting shaft 16 , the rotation of the connecting shaft 16 can drive the first worm 13 to rotate. The connecting shaft 16 is located at the end of the side where the second worm 15 is located, and has a worm drive motor 18 that drives the connecting shaft 16 to rotate in a circumferential direction.

Combining the difference between the sliding connection between the connecting shaft 16 and the first worm 13 and the key connection between the second worm 15, similarly, the first telescopic rod 9 and the second telescopic rod 10 in this embodiment are not necessarily are synchronously scaled. The first telescopic rod 9 and the second telescopic rod 10 can be independently telescopic. The first telescopic rod 9 includes a first fixed rod 19 with one end fixed on the outer wall of the first wheel frame 8 and a first rotating rod 20 screwed to the first fixed rod 19, the other end of the first rotating rod 20 The shaft center of the first worm wheel 12 is passed through and fixed; the second telescopic rod 10 includes a second fixed rod 21 with one end fixed on the outer wall of the first wheel frame 8 and a second fixed rod 21 screwed to the second fixed rod 21. The rotating rod 22, the other end of the second rotating rod 22 is passed through the shaft center of the second worm wheel 14 and fixed.

Therefore, according to the above-mentioned transmission assembly 11, it can be concluded that the worm drive motor 18 directly drives the connecting shaft 16 to rotate, and the connecting shaft 16 directly drives the second worm 15 to rotate, and finally drives the second worm wheel 14 to rotate, so that the second telescopic rod 10 is telescopic, and the first wheel frame 8 one side of the second telescopic rod 10 place side is promoted. Therefore, only after the locking structure 17 fixes the connecting shaft 16 and the first worm 13, the worm drive motor 18 can synchronously expand and contract the first telescopic rod 9 and the second telescopic rod 10 at the same time, and finally the first wheel frame 8 is stabilized. to lift.

Furthermore, the locking structure 17 includes a disc component 23 arranged at the end of the connecting shaft 16 on the side where the first worm 13 is located, the inner side of the disc component 23 is fixed to the end of the first worm 13, and the disc The outside of the component 23 has a lock nut 24 screwed on the connecting shaft 16 to lock the wafer component 23 on the connecting shaft 16 . The disc assembly 23 is slidably arranged on the connecting shaft 16 and is fixed to the inner disc 25 fixed to the outer end of the first worm 13, and the outer disc 26 is arranged outside the inner disc 25 and is keyed to the connecting shaft 16. The locking nut 24 is screwed to the outer side of the outer disc 26 . Therefore, the inner disc 25 actually directly controls the first worm 13. When the inner disc 25 rotates, it can directly drive the first worm 13 to rotate, and drive the first worm wheel 12 to rotate, so that the first telescopic rod 9 is stretched, so echo Note that the first telescopic rod 9 and the second telescopic rod 10 mentioned above are independently telescopic, and only when the locking structure 17 fixes the connecting shaft 16 and the first worm 13 can they be synchronized.

The outer disc 26 is keyed to the connecting shaft 16, so rotating the outer disc 26 can directly drive the connecting shaft 16 to rotate, and the outer disc 26 is manually rotated, which is different from the electric operation of the worm drive motor 18, and the outer disc 26 can be manually rotated. fine-tuning. Especially before the feeding step, the equipment is pre-adjusted, and the characteristics of the first telescopic rod 9 are directly controlled with the inner disc 25. Before the device is opened, the expansion and contraction of the first telescopic rod 9 is first adjusted through the inner disc 25, This enables the first wheel frame 8 to remain parallel to the second calendering wheel 2 , thereby ensuring a more stable calendering process, and more importantly, ensuring that the thickness of the calendered conductor is uniform, and that it is difficult to shift during the calendering process.

After adjusting the parallelism through the inner disc 25, the locking nut 24 is tightened, so that the inner disc 25, the outer disc 26, and the connecting shaft 16 are locked and fixed. At this time, rotating the outer disc 26 can simultaneously control the first telescopic rod 9 and the second telescopic rod 10 to make the two synchronously expand and contract, and control the first calendering wheel 1 to go up and down while maintaining a parallel state with the second calendering wheel 2, thereby adjusting The thickness of the conductor processing.

In this embodiment, the first rolling wheel 1 and the second rolling wheel 2 are hollow inside, and the outer ends of the first rolling wheel 1 and the second rolling wheel 2 are respectively provided with water-cooled backflow devices 27 . There are water inlet pipes and outlet pipes connected to each calender wheel, and there is a water-cooling chamber in the hollow inside the calender wheel. Cold water enters the water-cooling chamber from the water inlet pipe and is discharged from the water outlet pipe to form a water-cooling cycle, which reduces the temperature of the calender wheel and accelerates the conductor. Calendering and improved conductor stability. The calendering wheel drive mechanism 4 includes a motor 28 connected to the first calendering wheel 1 and the second calendering wheel 2, the motor 28 has a gearbox 29, and the displaceable output shaft 30 of the gearbox 29 is connected to the first calendering wheel Wheel 1 is fixed and rotates coaxially.

Working principle: first perform pre-adjustment, loosen the lock nut 24, adjust the inner disc 25 to control the expansion and contraction of the first telescopic rod 9 to lift the first wheel frame 8 on this side, so that the first calendering wheel 1 and the second calendering wheel 2 parallel between them; then tighten the lock nut 24 so that the inner and outer discs and the connecting shaft are fixed, at this time manually adjust the disc assembly 23, control the first telescopic rod 9 and the second telescopic rod 10 to expand and contract synchronously, and control the first rolling The lifting of the wheel 1 makes the distance between the first calendering wheel 1 and the second calendering wheel 2 reach the initial distance, and the motor 28 is turned on, and the first calendering wheel 1 and the second calendering wheel 2 rotate synchronously in reverse to perform calendering processing; conductor end processing After completion, when it is necessary to increase the distance between the calendering wheels, start the worm drive motor 18, drive the first worm 3 and the second worm 16 to rotate synchronously, and drive the first telescopic rod 9 and the second telescopic rod 10 to telescopically expand and contract synchronously, and finally the A calendering wheel 1 is lifted to the required height, thereby increasing the thickness of the conductor calendering, similarly reducing the thickness of the conductor calendering again when processing to the other end. Finally, a flat conductor with a flat middle part at both ends is processed. As shown in Figure 5-7, the conductors are arranged in the FFC, and the distance between adjacent conductors is increased to effectively avoid short circuits.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although the first calendering wheel 1, the second calendering wheel 2, the calendering aisle 3, the calendering wheel drive mechanism 4, the calendering adjustment mechanism 5, the bracket 6, the calendering wheel moving structure 7, the first wheel frame 8, the A telescopic rod 9, a second telescopic rod 10, a transmission assembly 11, a first worm gear 12, a first worm screw 13, a second worm gear 14, a second worm screw 15, a connecting shaft 16, a locking structure 17, a worm drive motor 18, a first Fixed rod 19, the first rotating rod 20, the second fixed rod 21, the second rotating rod 22, wafer assembly 23, lock nut 24, inner disc 25, outer disc 26, water cooling backflow device 27, motor 28, Transmission box 29, displaceable output shaft 30 and other terms, but the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (4)

1. The processing method of the FFC with the variable conductor section is characterized by comprising the following steps of:

A. and (3) feeding: placing the end of the conductor on a calendaring aisle (3) between the first calendaring wheel (1) and the second calendaring wheel (2), and keeping the conductor vertical to the first calendaring wheel (1) and the second calendaring wheel (2);

B. calendering: starting a calendaring wheel driving mechanism (4) for driving the first calendaring wheel (1) and the second calendaring wheel (2) to enable the first calendaring wheel (1) and the second calendaring wheel (2) to reversely rotate at the same speed, and calendaring the conductor;

C. and (3) adjusting the distance: the first calendaring wheel (1) is moved by the calendaring adjusting mechanism (5) so as to adjust the width of the calendaring passage (3), thereby changing the thickness of conductor calendars, and the steps can be repeated when the conductor calendars need to be adjusted again;

D. taking: closing the calendaring wheel driving mechanism (4) and taking out the conductor;

before the feeding step, the device is pre-adjusted, the characteristics of the first telescopic rod (9) are directly controlled by matching with the inner circular disc (25), before the device is started, the telescopic action of the first telescopic rod (9) is firstly regulated by the inner circular disc (25) so that the first wheel frame (8) can keep parallel with the second calendaring wheel (2), after the parallelism is regulated by the inner circular disc (25), the locking nut (24) is screwed, so that the inner circular disc (25), the outer circular disc (26) and the connecting shaft (16) are locked and fixed, at the moment, the outer circular disc (26) is rotated to simultaneously control the first telescopic rod (9) and the second telescopic rod (10) to synchronously stretch, and the first calendaring wheel (1) is controlled to lift under the state of keeping parallel with the second calendaring wheel (2);

the first calendaring wheel (1) and the second calendaring wheel (2) are arranged on the bracket (6), and the calendaring adjusting mechanism (5) comprises a calendaring wheel moving structure (7) which is arranged on the bracket (6) and can drive the first calendaring wheel (1) to be far away from or close to the second calendaring wheel (2);

the rolling wheel moving structure (7) comprises a first wheel frame (8) arranged on the bracket (6) in a sliding manner and a transmission assembly (11) arranged on the first wheel frame (8), wherein the first rolling wheel (1) is axially and rotatably arranged on the first wheel frame (8), and the first wheel frame (8) is provided with a first telescopic rod (9) and a second telescopic rod (10) which are parallel to each other;

the transmission assembly (11) comprises a first worm wheel (12) fixed at the upper end part of a first telescopic rod (9) and a first worm (13) meshed with the first worm wheel (12), the transmission assembly (11) further comprises a second worm wheel (14) fixed at the upper end part of a second telescopic rod (10) and a second worm (15) meshed with the second worm wheel (14), the first worm (13) and the second worm (15) are hollow and are positioned on the same axis, the middle parts of the first worm (13) and the second worm (15) are axially penetrated on the same connecting shaft (16), the outer wall of the connecting shaft (16) is connected with the inner wall of the second worm (15) in a key way, the outer wall of the connecting shaft (16) is connected with the inner wall of the first worm (13) in a sliding way, two ends of the connecting shaft (16) extend out of the outer end parts of the first worm (13) and the second worm (15) respectively, the end part of one side of the connecting shaft (16) where the first worm (13) is positioned is provided with a driving mechanism (18) which locks the first worm (16) and the driving shaft (16) to rotate, and the end part of the connecting shaft (16) is positioned at one side of the driving mechanism (18);

the locking structure (17) comprises a disc assembly (23) arranged at the end part of the connecting shaft (16) at one side where the first worm (13) is located, the inner side of the disc assembly (23) is fixed with the end part of the first worm (13), and a locking nut (24) screwed on the connecting shaft (16) is arranged at the outer side of the disc assembly (23) to lock the disc assembly (23) on the connecting shaft (16); the disc assembly (23) is arranged on the connecting shaft (16) in a sliding manner and is fixedly connected with the outer end part of the first worm (13) through an inner circular disc (25) and an outer circular disc (26) which is arranged on the outer side of the inner disc (25) and is in key joint with the connecting shaft (16), and the locking nut (24) is in threaded connection with the outer side of the outer circular disc (26).

2. The method for processing the FFC with the variable conductor section according to claim 1, wherein the first telescopic rod (9) comprises a first fixing rod (19) with one end fixed on the outer wall of the first wheel frame (8) and a first rotating rod (20) screwed with the first fixing rod (19), and the other end of the first rotating rod (20) is penetrated and fixed on the axle center of the first worm wheel (12); the second telescopic rod (10) comprises a second fixed rod (21) with one end fixed on the outer wall of the first wheel frame (8) and a second rotating rod (22) in threaded connection with the second fixed rod (21), and the other end of the second rotating rod (22) is penetrated and arranged at the axle center of the second worm wheel (14) in a penetrating way and fixed.

3. The method for manufacturing the FFC with the variable conductor cross section according to claim 1, wherein the first rolling wheel (1) and the second rolling wheel (2) are hollow, and the outer ends of the first rolling wheel (1) and the second rolling wheel (2) are respectively provided with a water-cooling reflux device (27).

4. A method of manufacturing a variable FFC in conductor section according to claim 3, characterized in that the calender wheel drive means (4) comprises a motor (28) connected to the first calender wheel (1) and the second calender wheel (2), the motor (28) having a gearbox (29), the displaceable output shaft (30) of the gearbox (29) being fixed and rotating coaxially with the first calender wheel (1).

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