JP2004296402A - Manufacturing method of flat cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a flat cable, capable of preventing meandering and wobbling of flat cable. <P>SOLUTION: In a transportation path P, a first guide mechanism 20 for guiding transportation of both insulating films 14a and 14b is provided on the upper stream side from an ultrasonic welding cutter 40 for ultrasonic welding/fusing of both insulating films 14a and 14b. A second guide mechanism 60 is provided on the lower stream side from the ultrasonic welding cutter 40 which guides transportation of a flat cable 10 by passing each of linear conductors 12 sandwiched between both insulating films 14a and 14b into each of conductor guide grooves. A taking mechanism 70 is provided between the ultrasonic welding cutter 40 and a take-up mechanism 80 which applies tension to the flat cable 10 to be transported. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel at predetermined intervals are sandwiched between a pair of strip-shaped insulating films.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a flat cable manufacturing apparatus manufactured using an ultrasonic welding machine, for example, there is a technique in which both ends in the width direction of both insulating films called ears are cut by a cutter.
[0003]
However, when a cutting technique using a cutter is used, there is a problem that high-speed processing easily causes cut sagging of the film.
[0004]
Thus, the use of the ultrasonic cutting technique can solve the above-described problem of cut sagging.
[0005]
A technique for cutting a flat cable with an ultrasonic wave as described above is disclosed in Patent Document 1, for example.
[0006]
[Patent Document 1]
JP-A-2003-7154
[0007]
[Problems to be solved by the invention]
However, as the transport speed in the manufacturing process increases, meandering and lateral blurring of the film before ultrasonic welding become more severe, and meandering and lateral blurring also occur in the flat cable after cutting.
[0008]
When the meandering and the lateral blur occur as described above, there is a problem that the accuracy of the margin width to be formed at both ends in the width direction of the flat cable deteriorates. In addition, the film may cover the conductor of the flat cable and climb between the groove portions of the anvil, thereby causing a crack in the film. When such meandering and lateral blur occur, it becomes difficult to manufacture a good flat cable.
[0009]
Therefore, an object of the present invention is to provide a flat cable manufacturing apparatus capable of preventing meandering and lateral blurring.
[0010]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 is a flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of strip-shaped insulating films. An ultrasonic welding cutting machine for ultrasonically welding both insulating films facing each other on both sides of each of the linear conductors and ultrasonically fusing the ultrasonically welded insulating films, and a substantially cylindrical roll body. A first guide roll body in which a pair of guide flanges are formed at intervals corresponding to a width dimension of the both insulating films, and the ultrasonic welding cutting machine in a conveyance path of the both insulating films. And a first guide mechanism that is disposed on the upstream side and guides the conveyance of the two insulating films.
[0011]
The invention according to claim 2 is a flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of band-shaped insulating films. Ultrasonic welding of both insulating films facing each other on both sides of the conductor and an ultrasonic welding cutting machine for ultrasonically fusing the ultrasonically welded insulating films, and a substantially circular columnar A pair of second guide rolls, a plurality of conductor guide grooves corresponding to the respective linear conductors are formed on at least one surface of the pair of second guide rolls on the surface, and a conveyance path for the two insulating films. By being disposed downstream from the ultrasonic welding and cutting machine, the linear guides sandwiched between the insulating films are passed through the respective conductor guide grooves to perform a conveyance guide. A second guide mechanism for conveying guide the flat cable, in which with a.
[0012]
The invention according to claim 3 is a flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of band-shaped insulating films. Ultrasonic welding of both insulating films opposing each other on both sides of the conductor, and an ultrasonic welding and cutting machine for ultrasonically fusing the ultrasonically welded insulating films, and ultrasonic welding and ultrasonic processing by the ultrasonic welding and cutting machine. A winding mechanism for winding a flat cable subjected to sonic fusing, and a pulling mechanism disposed between the ultrasonic welding cutting machine and the winding mechanism for applying tension to the flat cable to be conveyed. And with.
[0013]
The invention according to claim 4 is a flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of strip-shaped insulating films. Ultrasonic welding of both insulating films opposing each other on both sides of the conductor, and an ultrasonic welding and cutting machine for ultrasonically fusing the ultrasonically welded insulating films, and ultrasonic welding and ultrasonic processing by the ultrasonic welding and cutting machine. A winding mechanism for winding a flat cable subjected to sonic fusing, and a first guide in which a pair of guide flanges are formed in a substantially cylindrical roll main body with an interval corresponding to the width of the insulating films. A first guide that has a roll body and is disposed upstream of the ultrasonic welding and cutting machine in the transport path of the two insulating films and guides the transport of the two insulating films; And a pair of substantially circular column-shaped second guide rolls disposed opposite to each other, and at least one surface of the pair of second guide rolls corresponding to each linear conductor. A conductor guide groove is formed on the surface, and is disposed on the downstream side of the ultrasonic welding and cutting machine in the transport path of the two insulating films, and the linear conductors sandwiched between the two insulating films are each By performing the conveyance guide through the conductor guide groove, a second guide mechanism for performing the conveyance guide of the flat cable is disposed between the ultrasonic welding cutting machine and the winding mechanism and conveyed. And a take-off mechanism for applying tension to the flat cable.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a flat cable manufacturing apparatus according to an embodiment of the present invention will be described.
[0015]
FIG. 1 is a schematic explanatory view showing a flat cable manufacturing device. As shown in the figure, the flat cable manufacturing apparatus includes a first guide mechanism 20, an ultrasonic welding and cutting machine 40, a second guide mechanism 60, A mechanism 70 and a winding mechanism 80 are provided.
[0016]
Here, the flat cable 10 to be manufactured has a configuration in which a plurality of linear conductors 12 that are closed and arranged at predetermined intervals are sandwiched between a pair of band-shaped insulating films 14a and 14b (FIG. 11). As the linear conductor 12, for example, a copper or copper alloy conductor having a substantially rectangular cross section (for example, having a thickness of 0.15 mm and a width of 1.5 mm) is used. Further, as the insulating films 14a and 14b, a flexible and ultrasonically weldable resin film or the like is used. For example, a film having a 1 μm-thick polyester-based adhesive layer on one side of a 100 μm-thick polyethylene terephthalate (PET) film is used. Used.
[0017]
In addition, a plurality of conductor supply rolls, a pair of film supply rolls, and a thermocompression bonding roll are disposed upstream of the first guide mechanism 20 (these are not shown).
[0018]
Then, the plurality of linear conductors 12 are sandwiched between the pair of insulating films 14a and 14b in a state where they are arranged in parallel at a predetermined interval (for example, 2.5 mm) by the pitch guide. In this state, the temporary bonding of the insulating films 14a and 14b is performed on both sides of each linear conductor 12 by a thermocompression roll at a predetermined temperature (for example, 170 ° C.). In this manner, the insulating films 14a and 14b temporarily bonded with the plurality of linear conductors 12 sandwiched therebetween are fed to the first guide mechanism 20 shown in FIG.
[0019]
FIG. 2 is a schematic plan view showing the first guide mechanism 20. As shown in the figure, the first guide mechanism 20 has a first guide roll body 22 and is disposed upstream of the ultrasonic welding and cutting machine 40, and serves as a transport guide for the insulating films 14a and 14b. Is configured to do so.
[0020]
The first guide roll body 22 includes a substantially cylindrical roll body 23 and a pair of flanges 24 formed at both ends of the roll body 23. An interval corresponding to the width of the insulating films 14a and 14b is provided between the pair of flanges 24.
[0021]
In the present embodiment, two first guide roll bodies 22 are provided. The two first guide roll bodies 22 are provided at positions slightly shifted along the transport path P. The upstream first guide roll 22 is rotatably disposed on the lower surface of the insulating films 14a and 14b, and the downstream first guide roll 22 is disposed on the upper surface of the insulating films 14a and 14b. It is arranged rotatably.
[0022]
Then, the insulating films 14a and 14b are conveyed while being in contact with the respective first guide rolls 22, and the first guide rolls 22 are driven to rotate with the conveyance. Further, when the insulating films 14a, 14b are conveyed while being in contact with the respective first guide roll bodies 22, both side edges of the insulating films 14a, 14b are in sliding contact with the respective flange portions 24, and the displacement in the width direction is regulated. Is done. Thereby, meandering and lateral blurring of the insulating films 14a and 14b are suppressed. In particular, since the two first guide roll bodies 22 are provided above and below the transport path P, even if a force acts so that the insulating films 14a and 14b come off or below the transport path P, it is more likely The conveyance guide can be reliably performed.
[0023]
FIG. 3 is a partial cross-sectional side view showing the ultrasonic welding cutting machine 40, FIG. 4 is a rear view showing the ultrasonic welding cutting machine 40, and FIG. 5 is a view taken along the line VV in FIG. FIG. 6 is an enlarged view of a main part of FIG. As shown in these figures, the ultrasonic welding and cutting machine 40 ultrasonically welds the two insulating films 14a and 14b facing each other on both sides of the linear conductor 12, and also removes the two ultrasonically welded insulating films 14a and 14b. A horn 40a for applying ultrasonic vibration and an anvil 40b which are provided at positions sandwiching the transport path P from above and below for ultrasonic fusing are provided. The horn 40a and the anvil 40b are configured so as to be able to approach and separate from each other along the vertical direction.
[0024]
A welding horn portion (first horn portion) 41 is provided on the lower surface of the horn 40a facing the anvil 40b on the upstream side of the transport path P, and the welding horn section 41 and the transport path P are provided. A cutting horn part (second horn part) 42 is provided on the downstream side as appropriately separated.
[0025]
The facing surface of the welding horn portion 41 facing the anvil 40b side is formed as a bulging curved surface bulging downward in an arc shape.
[0026]
Further, a facing surface of the cutting horn portion 42 facing the anvil 40b side is configured to be flat when viewed from the side, and a ceramic chip is mounted on the facing surface by an embedded structure or a bonding structure.
[0027]
The anvil 40b includes a welding anvil body 44 disposed below and facing the welding horn section 41, and a cutting anvil blade 45 disposed below and facing the cutting horn section 42, It is structured to be supported by a support base 46.
[0028]
That is, the welding anvil body 44 has a cylindrical structure supported between both side plates 46b of the support base 46 so as to be rotatable around an axis orthogonal to the transport path P, and the welding horn of the horn 40a is provided. In order to form a plurality of conductor passage openings 48 in which the respective linear conductors 12 can individually pass at predetermined intervals from each other in a state of being close to the portion 41, a circumferential conductor is formed on the outer peripheral surface of the welding anvil body 44. A plurality of passage grooves 49 are formed at the same pitch interval as each linear conductor 12. In this embodiment, the open end side of each conductor passage groove 49 is formed in a tapered shape that gradually becomes wider in the opening direction.
[0029]
Further, a grooved anvil body 50 having the same configuration as the welding anvil body 44 is disposed in parallel with the welding anvil body 44 at a position downstream of the conveying path P of the cutting anvil blade 45, Similarly, it is rotatably supported between both side plates 46b of the support base 46.
[0030]
The cutting anvil blade 45 is fitted and removably inserted from above over the conductor passage groove 49 of the welding anvil body 44 and the groove 51 of the grooved anvil body 50 facing each other, and is positioned and held. Have been.
[0031]
More specifically, as shown in FIGS. 7 and 8, the cutting anvil blade 45 includes a frame member 45 a and a cutting blade 45 c attached to the frame member 45 a by a fixing tool 45 b (here, a screw) such as a screw. It is configured with. The frame member 45a is fitted from the upper side so as to be detachable from the conductor passing groove 49 of the welding anvil body 44 and the groove 51 of the grooved anvil body 50 facing each other while being supported by the support frame 46. Positioning is maintained. For this reason, when the frame member 45a is fitted over the conductor passage groove 49 of the welding anvil body 44 and the groove 51 of the grooved anvil body 50 when the cutting anvil blade 45 is mounted, the frame member 45a is By selecting the groove portions 49 and 51 to be fitted, the fixing position of the cutting anvil blade 45 can be easily changed in the width direction of the flat cable 10 in pitch units of the groove portions 49 and 51 of both the anvil members 44 and 50. .
[0032]
The cutting blade 45c is attached and fixed to a plane parallel to the transport path P of the frame member 45a by a fixing tool 45b. For this reason, the cutting blade 45c is attached to the frame member 45a with the spacer 45d of a predetermined thickness interposed between the frame member 45a and the cutting blade 45c, or the cutting blade 45c is attached to the frame member 45a without the spacer 45d. By attaching the cutting blade 45c to the frame member 45a in a state in which the cutting blade 45c is in close contact with the frame member 45a, or by adjusting the thickness of the spacer 45d when the spacer 45d is interposed, the position of the cutting blade 45c with respect to the position of the frame member 45a is adjusted. The position can be finely adjusted easily in the width direction of the flat cable 10.
[0033]
Accordingly, a setting operation for determining which of the grooves 49 and 51 of the anvil bodies 44 and 50 the frame member 45a is to be fitted to, and whether or not the spacer 45d is to be interposed between the frame member 45a and the cutting blade 45c. By setting the thickness of the spacer 45d in the case of mounting, together with the setting operation of how thick the spacer 45d is, the cut position by the cutting blade 45c is accurately set to substantially any position in the width direction of the flat cable 10. Can be.
[0034]
A pair of air cylinders 53 as contact pressure adjusting means are provided on the substrate 46a of the support base 46, and a flat anvil blade receiving base 54 is mounted between the rods 53a of both air cylinders 53. I have. Further, a rubber body 55 having an appropriate thickness is mounted on the upper surface of the anvil blade receiving base 54.
[0035]
The cutting anvil blade 45 fitted from above over the conductor passage groove 49 of the welding anvil body 44 and the groove 51 of the grooved anvil body 50 is configured to be supported on the rubber body 55.
[0036]
A pair of circular cross sections are provided between both side plates 46b of the support gantry 46 so as to be positioned below the welding anvil body 44 and the grooved anvil body 50 and to slide and guide the cutting anvil blade 45 in the vertical direction. A slide guide bar 56 is mounted.
[0037]
Then, the anvil blade support 54 is moved up and down by the synchronized expansion and contraction drive of the two air cylinders 53, and the anvil blade 45 for cutting is moved up and down as the anvil blade support 54 is moved up and down. The height of the cutting horn portion 42 can be adjusted so that the contact pressure with the cutting horn portion 42 can be set to an optimum value by adjusting the air pressure at the time of fusing by ultrasonic waves.
[0038]
Further, a sharply formed blade portion 45e of the upper edge facing the cutting horn portion 42 of the cutting blade 45c of the cutting anvil blade 45 has a structure bulging in an arc shape in a side view. The number of the anvil blades for use 45 can be arranged at an appropriate position as needed.
[0039]
Then, when the two insulating films 14a and 14b temporarily bonded are guided between the welding horn portion 41 and the welding anvil body 44 in the ultrasonic welding and cutting machine 40 on the downstream side, at the position of the ultrasonic welding and cutting machine 40. As shown in FIG. 9, each linear conductor 12 and both insulating films 14a and 14b are sandwiched between a welding horn portion 41 and a welding anvil body 44, and the ultrasonic welding cutting machine 40 is operated.
[0040]
That is, the ultrasonic vibration generated by an ultrasonic vibration generating mechanism (vibrator or the like) not shown is applied to the horn 40a, and the welding horn part 41 provided integrally with the horn 40a also forms the insulating film 14a, The insulating films 14a and 14b are vibrated in the width direction of 14b, and are brought into pressure contact with the circumferential ridges 49a located on both sides of each conductor passage groove 49 by the ultrasonic vibration energy by the application of the ultrasonic vibration. The two members are ultrasonically welded on both sides of each linear conductor 12, respectively.
[0041]
The ultrasonically welded insulating films 14a and 14b are provided on both sides of the insulating films 14a and 14b by a cutting horn portion 42 and a cutting anvil blade 45 disposed immediately downstream of the conveying path P. Is blown off by ultrasonic waves leaving a margin width of.
[0042]
That is, as shown in FIG. 10, the cutting anvil blades 45 are respectively arranged at positions having a predetermined interval on the side of the conductor passage groove 49 of the welding anvil body 44 to which each linear conductor 12 is guided, During ultrasonic welding of the insulating films 14a and 14b by the welding horn portion 41 and the welding anvil body 44, each cutting anvil blade 45 is brought into contact with the cutting horn portion 42 under a predetermined contact pressure. Similarly to the welding horn portion 41, the cutting horn portion 42 provided integrally with the horn 40a is vibrated in the width direction, and the ultrasonic vibration energy generated by the application of the ultrasonic vibration causes the insulating films 14a and 14b to be cut. The insulating films 14a and 14b are ultrasonically blown at predetermined positions at both ends.
[0043]
In short, when the linear conductors 12 and the insulating films 14a and 14b are sequentially transported along the transport path P, the welding anvil body 44 is driven to rotate around the horizontal axis, and the lower surface of the welding horn part 41 is rotated. While slidingly contacting the upper surface of the upper insulating film 14a, the ridges 49a on both sides of the conductor passage groove 49 of the welding anvil body 44 come into contact with the lower surface of the lower insulating film 14b while rotating. The films 14a and 14b are ultrasonically welded in a continuous state along the length direction thereof, and the both sides of both insulating films 14a and 14b are formed by the cutting horn portion 42 and each cutting anvil blade 45 immediately after. Is ultrasonically blown continuously along the length thereof, leaving a predetermined margin width. Then, as shown in FIG. 11, each linear conductor 12 and both insulating films 14a and 14b are transported further downstream via the grooved anvil body 50.
[0044]
The cut-away portions 18 of both insulating films 14a and 14b are transported along the transport path P to the downstream side together with the flat cable 10.
[0045]
FIG. 12 is a plan view showing the second guide mechanism 60, and FIG. 13 is a sectional view showing the second guide mechanism. The second guide mechanism 60 has a pair of second guide rolls 62 and 66, and is disposed downstream of the ultrasonic welding and cutting machine 40 on the transport path P to serve as a transport guide for the flat cable 10. Do.
[0046]
The second guide roll body 62 on one side is formed in a substantially cylindrical shape having a plurality of conductor guide grooves 64 corresponding to the respective linear conductors 12 formed on the surface. That is, the second guide roll body 62 is formed as a kind of grooved guide roll. Each conductor guide groove 64 has a concave shape corresponding to the ridge portion formed by each linear conductor 12 in the flat cable 10.
[0047]
The second guide roll body 66 on the other side is formed in a substantially cylindrical shape without a groove on the surface.
[0048]
The pair of second guide rolls 62 and 66 are disposed to face each other with the transport path P vertically interposed therebetween. An interval corresponding to the thickness of the flat cable 10 is provided between the pair of second guide rolls 62 and 66.
[0049]
In the present embodiment, on the lower surface side of the flat cable 10 in the transport path P, a ridge portion formed by each linear conductor 12 is formed, and the upper surface side is formed flat. Therefore, the grooved one-side second guide roll body 62 is disposed below the conveyance path P, and the groove-less second guide roll body 66 is disposed above the conveyance path P. ing. However, if a convex portion due to the linear conductor 12 is formed on the upper surface side of the flat cable 10 in the transport path P, the second guide roll body 62 on one side with a groove and the second guide roll body 62 on the other side without a groove are provided. The arrangement relationship with the second guide roll body 66 is reversed. In addition, if convex portions formed by the linear conductors 12 are formed on both surfaces of the flat cable 10, a pair of grooved second guide rolls 62 may be provided.
[0050]
Then, as shown in FIG. 13, when the flat cable 10 passes between the pair of second guide roll bodies 62 and 66, the protruding portions formed by the respective linear conductors 12 pass through the respective conductor guide grooves 64. As a result, the protrusion in the flat cable 10 due to the linear conductors 12 is suppressed by the respective conductor guide grooves 64 in the width direction.
[0051]
Further, in the present embodiment, two flanges 63a and 63b are provided at both ends of the second guide roll body 62 on one side, respectively.
[0052]
An interval corresponding to the width of the flat cable 10 is formed between the inner flanges 63a at both ends of the second guide roll body 62. Therefore, even when both side edges of the flat cable 10 abut on both the flange portions 63a, the flat cable 10 is prevented from being blurred in the width direction.
[0053]
In addition, at each end of the second guide roll body 62, an interval corresponding to the both-side separation portion 18 is provided between the inner flange portion 63a and the outer flange portion 63b. Then, both side separated portions 18 that are transported along the transport path P together with the flat cable 10 are transported to the downstream side of the transport path P through between the flanges 63a and 63b.
[0054]
In the present embodiment, a withstand voltage machine 90 for testing the withstand voltage characteristics of the flat cable 10 by the insulating films 14a and 14b is disposed downstream of the ultrasonic welding and cutting machine 40. Further, two second guide mechanisms 60 are disposed on the upstream side and the downstream side of the withstand voltage machine 90, respectively.
[0055]
FIG. 14 is a schematic side view showing the take-off mechanism 70. The take-up mechanism 70 is a mechanism for applying tension to the flat cable 10 to be conveyed, and is provided between the ultrasonic welding cutting machine 40 and the winding mechanism 80. In particular, in the present embodiment, the take-off mechanism 70 is disposed downstream of the second guide mechanism 60.
[0056]
The take-off mechanism 70 includes a single drive roller 72 and driven rollers 74 disposed around the drive roller 72 on the upstream, downstream, and lower sides of the transport path P. I have.
[0057]
The driving roller 72 is driven to rotate in a direction indicated by an arrow Q in response to driving of a driving unit 72a such as a motor. An endless annular belt 76 is wound around the driven roller 74. The belt 76 is pressed against the outer periphery of the drive roller 72 in the middle of the travel path.
[0058]
Then, the flat cable 10 is transported downstream along the transport path P, passing between the outer periphery of the drive roller 72 and the belt 76. At this time, a force for sending the flat cable 10 to the downstream side of the transport path P acts on the flat cable 10 by the rotational driving force of the driving roller 72. That is, on the upstream side of the take-up mechanism 70 in the transfer path P, the transfer force of the take-up mechanism 70 acts on the flat cable 10 in addition to the transfer force of the take-up force of the take-up mechanism 80.
[0059]
Therefore, a relatively large tension is applied to the flat cable 10 to be conveyed. In particular, at the ultrasonic welding position in the ultrasonic welding cutting machine 40, a relatively large tension is applied to the flat cable 10.
[0060]
The winding mechanism 80 mainly has a function of winding the flat cable 10 that has been subjected to ultrasonic welding and ultrasonic cutting. In the present embodiment, the winding mechanism 80 includes a plurality of winding rollers 82. Then, the flat cable 10 and the both-side separated portions 18 of the insulating films 14 a and 14 b cut and separated by the ultrasonic welding and cutting machine 40 are wound by winding rollers 82, respectively.
[0061]
In the flat cable manufacturing apparatus configured as described above, first, the insulating films 14a and 14b temporarily bonded with the plurality of linear conductors 12 interposed therebetween are passed through the first guide mechanism 20, and are passed through the ultrasonic welding and cutting machine 40. Sent to. Then, after the ultrasonic welding and ultrasonic cutting are performed in the ultrasonic welding and cutting machine 40, the flat cable 10 is moved from the second guide mechanism 60 on the upstream side to the withstand voltage machine 90 and the second guide mechanism on the downstream side. After being passed through the take-up mechanism 60 and the take-up mechanism 70, the take-up mechanism 80 takes up and accommodates it.
[0062]
According to the flat cable manufacturing apparatus configured as described above, since the transport guide of both insulating films 14a and 14b is performed by the first guide mechanism 20 on the upstream side of the ultrasonic welding and cutting machine 40, even if high-speed processing is performed, Even if it is performed, meandering and lateral blurring of both insulating films 14a and 14b can be prevented. For this reason, especially in the ultrasonic welding cutting machine 40, the accuracy of the margin width to be formed at both ends in the width direction of the flat cable 10 is improved. In addition, it is possible to prevent the insulating films 14a and 14b covering the linear conductors 12 of the flat cable 10 from climbing over the portion between the grooves 51 of the grooved anvil body 50, thereby preventing the insulating films 14a and 14b from cracking. can do. Therefore, the flat cable 10 excellent in product quality can be manufactured at high speed.
[0063]
In addition, on the downstream side of the ultrasonic welding and cutting machine 40, the second guide mechanism 60 guides the linear conductors 12 sandwiched between the two insulating films 14 a and 14 b through the respective conductor guide grooves 64 to perform the conveyance guide. Thus, the conveyance guide of the flat cable 10 is performed. From this point, it is possible to prevent the flat cable 10 from meandering and lateral blurring even when, for example, high-speed processing is performed, and to manufacture the flat cable 10 with excellent product quality at a high speed as described above. Can be.
[0064]
Furthermore, since the take-up mechanism 70 for applying tension is provided between the ultrasonic welding cutting machine 40 and the take-up mechanism 80, the take-up mechanism is provided upstream of the take-up mechanism 70 in the transport path P. In addition to the conveying force of the winding force of 80, the conveying force of the take-off mechanism 70 acts on the flat cable 10. Therefore, a relatively large tension is applied to the flat cable 10 to be conveyed, particularly at the ultrasonic welding position in the ultrasonic welding cutting machine 40. Thereby, even if, for example, high-speed processing is performed, meandering and lateral blurring of the flat cable 10 can be prevented, and in this regard, the flat cable 10 with excellent product quality can be manufactured at high speed. be able to.
[0065]
【The invention's effect】
As described above, according to the flat cable manufacturing apparatus according to the first aspect of the present invention, the first guide mechanism guides the conveyance of both insulating films, so that the meandering and lateral blurring of the both insulating films can be prevented.
[0066]
Further, according to the second aspect of the present invention, since the conveyance of both insulating films is performed by the second guide mechanism, meandering and lateral blur of the flat cable can be prevented.
[0067]
Further, according to the third aspect of the present invention, since a relatively high tension is applied to the flat cable, it is possible to prevent the flat cable from meandering and lateral blurring.
[0068]
According to the fourth aspect of the present invention, since the first and second guide mechanisms guide the conveyance of the two insulating films, meandering and lateral blur of the flat cable can be prevented. Further, since a relatively high tension is applied to the flat cable, meandering and lateral blurring of the flat cable can be more effectively prevented from this point.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view showing a flat cable manufacturing apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic plan view showing a first guide mechanism 20.
FIG. 3 is a partial cross-sectional side view showing an ultrasonic welding cutting machine.
FIG. 4 is a rear view showing the ultrasonic welding cutting machine.
FIG. 5 is a view taken in the direction of arrows VV in FIG. 4;
FIG. 6 is an enlarged view of a main part of FIG. 5;
FIG. 7 is a side view showing a cutting anvil blade.
FIG. 8 is a front view showing a cutting anvil blade.
FIG. 9 is an explanatory view in a manufacturing process of the flat cable.
FIG. 10 is an explanatory diagram in a manufacturing process of the flat cable.
FIG. 11 is an explanatory diagram in a manufacturing process of the flat cable.
FIG. 12 is a plan view showing a second guide mechanism.
FIG. 13 is a sectional view showing a second guide mechanism.
FIG. 14 is a schematic side view showing a take-off mechanism.
[Explanation of symbols]
10 Flat cable
12 linear conductor
14a, 14b insulating film
20 First guide mechanism
22 Guide roll body
23 Roll body
24 Tsubabe
40 Ultrasonic welding and cutting machine
60 second guide mechanism
62 Guide roll body
64 Conductor guide groove
66 Guide roll body
70 Pickup mechanism
80 Winding mechanism
P transport route

Claims (4)

A flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of strip-shaped insulating films,
Ultrasonic welding of both insulating films facing each other on both sides of each of the linear conductors, and an ultrasonic welding cutting machine for ultrasonically fusing the both insulating films ultrasonically welded,
A first guide roll body in which a pair of guide flanges is formed in a substantially cylindrical roll main body at an interval corresponding to a width dimension of the both insulating films; A first guide mechanism that is disposed upstream of the ultrasonic welding cutting machine and guides the conveyance of the two insulating films;
Flat cable manufacturing equipment equipped with A flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of strip-shaped insulating films,
Ultrasonic welding of both insulating films facing each other on both sides of each of the linear conductors, and an ultrasonic welding cutting machine for ultrasonically fusing the both insulating films ultrasonically welded,
A pair of substantially circular column-shaped second guide rolls disposed opposite to each other, and a plurality of conductor guide grooves corresponding to the respective linear conductors are provided on at least one surface of the pair of second guide rolls. Are formed on the surface, are disposed downstream of the ultrasonic welding and cutting machine in the transport path of the two insulating films, and each linear conductor sandwiched between the two insulating films is placed in each of the conductor guide grooves. A second guide mechanism that guides the transport of the flat cable by performing a transport guide through
Flat cable manufacturing equipment equipped with A flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of strip-shaped insulating films,
Ultrasonic welding of both insulating films facing each other on both sides of each of the linear conductors, and an ultrasonic welding cutting machine for ultrasonically fusing the both insulating films ultrasonically welded,
A winding mechanism for winding the flat cable subjected to ultrasonic welding and ultrasonic cutting by the ultrasonic welding and cutting machine,
A take-up mechanism provided between the ultrasonic welding cutting machine and the take-up mechanism, for applying tension to the flat cable to be conveyed,
Flat cable manufacturing equipment equipped with A flat cable manufacturing apparatus for manufacturing a flat cable in which a plurality of linear conductors arranged in parallel with a predetermined interval are sandwiched between a pair of strip-shaped insulating films,
Ultrasonic welding of both insulating films facing each other on both sides of each of the linear conductors, and an ultrasonic welding cutting machine for ultrasonically fusing the both insulating films ultrasonically welded,
A winding mechanism for winding the flat cable subjected to ultrasonic welding and ultrasonic cutting by the ultrasonic welding and cutting machine,
A first guide roll body in which a pair of guide flanges is formed in a substantially cylindrical roll main body at an interval corresponding to a width dimension of the both insulating films; A first guide mechanism that is disposed upstream of the ultrasonic welding cutting machine and guides the conveyance of the two insulating films;
A pair of substantially circular column-shaped second guide rolls disposed opposite to each other, and a plurality of conductor guide grooves corresponding to the respective linear conductors are provided on at least one surface of the pair of second guide rolls. Are formed on the surface, are disposed downstream of the ultrasonic welding and cutting machine in the transport path of the two insulating films, and each linear conductor sandwiched between the two insulating films is placed in each of the conductor guide grooves. A second guide mechanism that guides the transport of the flat cable by performing a transport guide through
A take-up mechanism provided between the ultrasonic welding cutting machine and the take-up mechanism, for applying tension to the flat cable to be conveyed,
Flat cable manufacturing equipment equipped with

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