JP5323762B2 - Flat cable manufacturing method and manufacturing apparatus thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a flat cable and an apparatus for manufacturing the same that can manufacture multiple conductors by coating them with a pair of insulating films while regulating them at a prescribed pitch interval. <P>SOLUTION: A pair of top and bottom heat rollers 4, 4 are relatively moved in a direction of uncoupling so as to remove tensile strength applied from diverse directions to a straight angle conductor 2. Then, multiple straight angle conductors 2 to be inserted between the heat rollers 4, 4 are regulated at a position separated in a prescribed pitch interval by conductor guide rollers 6, 8. Subsequently, the pair of top and bottom heat rollers 4, 4 are relatively moved in a direction of coupling so as to simultaneously press the conducting films 3, 3 to a top and bottom surface, respectively, of a start end of the straight angle conductor 2 regulated at the prescribed pitch interval separated by the conductor guide rollers 6, 8, which are coated altogether by heating and welding. This process can start manufacture of the multiple straight angle conductors 2 being coated with the pair of conducting films 3, 3 while regulating them at the prescribed pitch interval. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a flat cable manufacturing method and a manufacturing apparatus therefor, for example, used for wiring various electrical components mounted in a vehicle or wiring in electrical equipment.

Conventionally, as a method and apparatus for manufacturing the flat cable, for example, a previously proposed flat cable slitting method (see Patent Document 1), a flat conductor 52 as shown in FIG. The manufacturing method using the apparatus which manufactures the flat cable 51 by pinching is disclosed.
More specifically, this apparatus heats and welds the insulating films 53 and 53 by a pair of upper and lower heat rolls 54 and 54 while sandwiching a plurality of flat conductors 52 between the pair of insulating films 53 and 53. The flat cable 51 can be manufactured.

  However, when the plurality of flat conductors 52 are sandwiched between the insulating films 53 and 53 pressed by the heat rolls 54 and 54, the flat conductors 52 have tensile forces from various directions such as the vertical direction and the horizontal direction. Therefore, it is difficult to correct the sandwiching start position (pitch interval) of the flat conductor 52.

  In addition, when correction of the sandwiching start position is insufficient, when the flat cable 51 is manufactured while sandwiching between the insulating films 53 and 53 in that state, the sandwiching position (pitch interval) of the flat conductor 52 is thereafter set. It is difficult to manufacture the modified flat cable 51.

  This is because the movement of the flat conductor 52 is hindered by the adhesive force of the adhesive applied to the opposing surfaces of the insulating films 53, 53, so that the heating and welding are continuously performed at the same interval as the sandwiching start position. is there.

JP 7-235229 A

  An object of the present invention is to provide a flat cable manufacturing method and a manufacturing apparatus therefor, which can be manufactured by covering a plurality of conductors with a pair of insulating films while being regulated at a predetermined pitch interval.

  In this invention, while sandwiching a plurality of conductors arranged in parallel in parallel with the conductor transfer direction between a pair of insulating films, the insulating films are heated and welded by a pair of upper and lower heat rolls, In the flat cable manufacturing method in which each conductor is covered with a pair of insulating films, the pair of upper and lower heat rolls are moved relative to each other in the direction of being separated from each other by the vertical movement means, so that the contact of each insulating film with each conductor is avoided. In a state where the conductors are spaced apart from each other, the conductors are prevented from coming into contact with the insulating films pressed against the respective heat rolls, so that the upstream side from the downstream side between the opposed peripheral surfaces of the respective heat rolls. A direction perpendicular to the conductor transfer direction by the conductor guide means that is inserted in parallel with the conductor transfer direction and arranged on the upstream side and the downstream side of each heat roll. The pair of upper and lower heat rolls are moved relative to each other in a direction in which they are in contact with each other by the vertical movement means, and are regulated at the predetermined pitch intervals by the conductor guide means. Each insulating film is pressed against the upper and lower surfaces of the starting end side of each conductor, and each insulating film pressed against the upper and lower surfaces of the starting end side of each conductor is heated and welded by the respective heat rolls, and then the conductor guide means on the downstream side The flat cable manufacturing method is characterized in that the cable is retracted from the downstream side of each heat roll and the conductor is covered with a pair of insulating films while being regulated at a predetermined pitch interval.

  In other words, when starting the production of the flat cable, the pair of upper and lower heat rolls are moved relative to each other in the direction of being separated from each other by the vertical movement means, and are separated at a separation interval that avoids contact of the insulating film with respect to the conductor. In a state where the tensile force applied to the conductor from various directions such as the vertical direction and the horizontal direction is removed, a plurality of conductors are prevented from contacting each insulating film pressed against each heat roll. , And inserted between the opposed peripheral surfaces of the respective heat rolls in parallel with the conductor transfer direction.

Further, the conductors are regulated at positions spaced by a predetermined pitch interval with respect to the direction orthogonal to the conductor transfer direction by the conductor guide means disposed on the upstream side and the downstream side of each heat roll.
Next, the pair of upper and lower heat rolls are moved relative to each other in the direction in which they are brought into contact with each other by the vertical movement means, and are insulated from the upper and lower surfaces on the starting end side of the conductor regulated at a predetermined pitch interval by the pair of conductor guide means. The film is pressed and each insulating film pressed against the top and bottom surfaces of the conductor is heated and welded by a heat roll.

Thereafter, the conductor guide means on the downstream side is retracted from the downstream side of each heat roll, and a plurality of conductors are covered with a pair of insulating films while being regulated at a predetermined pitch interval.
Thereby, a plurality of conductors can be manufactured by being covered with a pair of insulating films while being regulated at a predetermined pitch interval.

As an aspect of the present invention, the upper and lower surfaces of the conductor on the start end side are covered with each insulating film, and then the downstream conductor guide means can be kept at a position retracted from the downstream side of each of the heat rolls. .
That is, when the production of the flat cable is started, the conductor guide means on the downstream side does not come into contact with the flat cable, and the production of the flat cable can be performed stably.

Further, as an aspect of the present invention, when the pair of upper and lower heat rolls are separated from each other in the vertical direction, the downstream conductor guide means is horizontally moved to the downstream side of the respective heat rolls by the horizontal movement means, and the start ends of the respective conductors When each insulating film is heated and welded to the side upper and lower surfaces, the downstream conductor guide means can be retracted from the downstream side of each heat roll by the horizontal moving means.
That is, the downstream conductor guide means is moved horizontally to the downstream side of each heat roll, and the plurality of conductors are regulated at a predetermined pitch interval by the upstream and downstream conductor guide means. Further, the conductor guide means on the downstream side is retracted from the downstream side of each heat roll to avoid contact of the conductor guide means with the flat cable.

  As a result, it is possible to stably produce the flat cable by restricting each conductor to a predetermined pitch interval when sandwiched between the insulating films.

Further, as an aspect of the present invention, the downstream conductor guide means is reciprocated between a position behind the upstream conductor guide means on the upstream side of the respective heat rolls and a position downstream of the respective heat rolls. It can be moved by moving means.
Thereby, when the start end side of the plurality of conductors is sandwiched between a pair of insulating films, or when a flat cable is continuously manufactured while sandwiching each conductor between a pair of insulating films, The predetermined pitch interval can be regulated by the conductor guide means on the side and the downstream side.

  As a result, each conductor can be regulated at a predetermined pitch interval when sandwiched between the insulating films, and each conductor can be regulated at a predetermined pitch interval when the flat cable is continuously manufactured.

As an aspect of the present invention, the conductor guide means includes a roll-shaped conductor guide roll in which a groove for inserting the conductor is formed at a predetermined pitch interval with respect to a direction orthogonal to the conductor transfer direction. can do.
Thereby, each conductor pinched | interposed between a pair of insulating films can be controlled to a predetermined pitch interval. Further, the contact area between the conductor and the conductor guide roll and the contact resistance applied to the conductor are small, and the conductor can be smoothly regulated at a predetermined pitch interval.
As a result, a plurality of conductors can be covered with a pair of insulating films while being regulated at a predetermined pitch interval, so that the pitch accuracy of the conductors is improved.

  Further, the present invention is such that each insulating film is heated and welded by a pair of upper and lower heat rolls while sandwiching a plurality of conductors arranged in parallel in parallel with the conductor transfer direction between the pair of insulating films. In the flat cable manufacturing apparatus for covering each conductor with a pair of insulating films, each insulating film is pressed against each conductor, with a separation position spaced apart from each other so that contact of each insulating film with respect to each conductor is avoided. A vertical movement means for relatively moving each of the thermal rolls to an abutting position that is in contact with a predetermined interval; and a direction that is disposed upstream and downstream of each of the thermal rolls and that each of the conductors is orthogonal to the conductor transfer direction And a support position for supporting the conductors on the downstream side of the heat rolls with respect to the conductor guide means for restricting the conductor guide means to positions separated by a predetermined pitch interval. When, characterized in that the a flat cable manufacturing apparatus and a horizontal moving means for horizontally moving to the standby position retracted from the downstream side of the heat roll.

  That is, when starting the production of the flat cable, the conductor guide means on the downstream side is moved to the downstream support position of each heat roll by the horizontal movement means, and the pair of upper and lower heat rolls are separated from each other by the vertical movement means. A plurality of conductors in a state where they move relative to each other and are separated at a separation interval that avoids contact of the insulating film with the conductors, and a tensile force from various vertical and horizontal directions applied to the conductors is removed. Are inserted in parallel to the conductor transfer direction between the opposed peripheral surfaces of the respective heat rolls so as to avoid contact with the respective insulating films pressed against the respective heat rolls.

Furthermore, each conductor is regulated at a position spaced by a predetermined pitch interval with respect to a direction orthogonal to the conductor transfer direction by conductor guides arranged on the upstream side and downstream side of each heat roll.
Next, a pair of upper and lower heat rolls are moved relative to each other in the direction in which they are brought into contact with each other by the vertical movement means, and each insulating film is applied to the upper and lower surfaces on the starting end side of the conductors regulated at a predetermined pitch interval by the pair of conductor guides. The insulating film pressed against the top and bottom surfaces of the starting end side of the conductor is heated and welded with a heat roll.

Thereafter, the conductor guide means on the downstream side is moved from the standby position by the horizontal moving means, and a plurality of conductors are covered with a pair of insulating films while being regulated at a predetermined pitch interval.
Thereby, a plurality of conductors can be manufactured by being covered with a pair of insulating films while being regulated at a predetermined pitch interval.

As an aspect of the present invention, the downstream conductor guide means is reciprocated between a position upstream of the respective heat rolls and a position behind the upstream conductor guide means and a position downstream of the respective heat rolls. A reciprocating means can be provided.
Thereby, when the start end side of the plurality of conductors is sandwiched between a pair of insulating films, or when a flat cable is continuously manufactured while sandwiching each conductor between a pair of insulating films, The predetermined pitch interval can be regulated by the conductor guide means on the side and the downstream side.

  As a result, each conductor can be regulated at a predetermined pitch interval when sandwiched between the insulating films, and each conductor can be regulated at a predetermined pitch interval when the flat cable is continuously manufactured.

As an aspect of the present invention, the conductor guide means includes a roll-shaped conductor guide roll in which a groove for inserting the conductor is formed at a predetermined pitch interval with respect to a direction orthogonal to the conductor transfer direction. can do.
Thereby, each conductor pinched | interposed between a pair of insulating films can be controlled to a predetermined pitch interval. Further, the contact area between the conductor and the conductor guide roll and the contact resistance applied to the conductor are small, and the conductor can be smoothly regulated at a predetermined pitch interval.
As a result, a plurality of conductors can be covered with a pair of insulating films while being regulated at a predetermined pitch interval, so that the pitch accuracy of the conductors is improved.

The said conductor can be comprised with metal foil which has electroconductivity, such as a flat conductor, a round conductor, for example. The insulating film can be formed of a thin synthetic resin film having flexibility and insulating properties.
The conductor guide means can be constituted by, for example, a roll-shaped conductor guide roll or a thin-plate-shaped conductor guide plate.

  According to this invention, the flat cable manufacturing method and its manufacturing apparatus which coat | cover and manufacture with a pair of insulating film, restricting the several conductor as described in the subject of invention to predetermined pitch space | interval can be provided.

The side view which shows the manufacturing apparatus of this embodiment which manufactures a flat cable. The top view which shows the width alignment method of the flat conductor by a manufacturing apparatus. Explanatory drawing which shows the state which pressed the flat conductor against the one side wall surface of the groove part. The enlarged side view which shows the part into which a flat conductor is pinched | interposed with respect to between heat rolls. The enlarged side view which shows the part which has arrange | positioned the conductor guide plate toward the contact part of a heat roll. The top view which shows the conductor guide plate which regulates a flat conductor to predetermined pitch space | interval. It is a side view which shows the method of pinching | interposing a flat conductor between insulating films. The side view which shows the manufacturing apparatus of other embodiment. Explanatory drawing which shows the state which a flat conductor displaces to the width direction. The side view which shows the manufacturing apparatus of the conventional flat cable.

An embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view showing a manufacturing apparatus 10 of the present embodiment for manufacturing a flat cable 1, FIG. 2 is a plan view showing a width adjusting method of a flat conductor 2 by the manufacturing apparatus 10, and FIG. 3 shows a flat conductor 4 of a groove 7a. FIG. 4 is an explanatory view showing a state of pressing against one side wall surface 7b, FIG. 4 is an enlarged side view showing a portion where the flat conductor 2 is sandwiched between the heat rolls 4 and 4, and FIG. enlarged side view of a portion of arranging the conductive guide plate 7 toward the B _2, FIG. 6 is a plan view showing a conductor guide plate 7 for regulating the rectangular conductor 2 at predetermined pitch intervals P _3, 7 flat conductor 2 It is a side view which shows the method of inserting | pinching the starting end side of between between insulating films 3 and 3. FIG.

  The manufacturing apparatus 10 that manufactures the flat cable 1 of the present embodiment includes a conductor supply unit a that supplies a plurality of flat conductors 2 arranged in order from the upstream side in the conductor transfer direction A, and a roll-shaped conductor guide roll 5, 6, a thin plate-like conductor guide plate 7, a laminated portion b for covering the upper and lower surfaces of the flat conductor 2 with the pair of insulating films 3, 3, a pair of upper and lower film supply portions c, and the starting end of the flat conductor 2 It is comprised with the roll-shaped conductor guide roll 8 used when the side is inserted | pinched between the insulating films 3 and 3. FIG.

  The conductor supply part a is composed of a conductor supply device (not shown) arranged on the upstream side in the conductor transfer direction A. That is, a plurality of rectangular conductors 2 formed in a rectangular cross section supplied from the conductor supply device are supplied toward the laminate processing portion b while being arranged in parallel in parallel with the conductor transfer direction A.

  The laminating part b is composed of a pair of upper and lower heat rolls 4 that pressurize and heat a portion where the flat conductor 2 and the insulating film 3 are overlapped in the thickness direction (see FIGS. 4 and 5).

The film supply part c is composed of a film supply apparatus (not shown) arranged above and below the laminating part b. That is, supplying the insulating films 3, 3 to be supplied to the contact portion B ₂ from the upstream side of the conductor conveying direction A against the thermo roll 4, 4 pairs of lamination portion b from the film supply device.

  The pair of upper and lower heat rolls 4 are arranged orthogonal to the conductor transfer direction A of the flat conductor 2 so as to face the upper and lower surfaces of the portion where the conductor group 2A and the insulating film 3 are overlapped. Moreover, the heat roll 4 is formed longer than the lateral width of the insulating film 3, and rotates synchronously in the conductor transfer direction A by a motor (not shown).

The heat rolls 4 and 4 are relatively moved in a direction in which they are in contact with each other and in a direction in which they are separated from each other by a hydraulic or electric vertical movement mechanism 9A. In other words, the Taise' position the contact portion B ₂ insulating film 3 to the upper and lower surfaces of rectangular conductor 2 supplied _(see FIG. 5) of the hot roll 4, 4 are pressed, flat supplied to said contact portion B ₂ The insulating film 3 is moved up and down to a separation position where contact or pressing of the insulating film 3 against the upper and lower surfaces of the conductor 2 is avoided.

That is, the heat rolls 4 and 4 are supplied from the insulating film 3 supplied from the film supply part c provided above the laminating part b and the film supply part c provided below the laminating part b. A plurality of rectangular conductors 2 regulated by the conductor guide plate 7 at a predetermined pitch interval P ₃ (see FIG. 2) while pressing the insulating film 3 to be pressed by the smooth circumferential surface of the heat roll 4. It is sandwiched between the insulating films 3 and 3.

  Insulating with the heat rolls 4 and 4 while pressing the pair of insulating films 3 and 3 pressed by the heat rolls 4 and 4 onto the upper and lower surfaces of the conductor group 2A in which a plurality of flat conductors 2 are arranged in parallel. The films 3 and 3 are heated to a melting temperature, and the portions of the insulating films 3 and 3 that are in contact with each other are integrally welded.

The insulating film 3, by the conductive guide plate 7 flat conductor 2 of the plurality of forms in the lateral covering the entire one surface of the conductors 2A, which is restricted to a predetermined pitch interval P ₃ (top or bottom) .

Between the conductor supply part a and the laminating part b, a conductor guide roll 5, a conductor guide roll 6, and a conductor guide plate 7 are arranged in this order from the upstream side in the conductor transfer direction A. In addition, a conductor guide roll 8 is disposed on the downstream side of the laminated portion b.
The conductor guide rolls 5, 6, and 8 are formed longer than the lateral width of the conductor group 2A in which a plurality of flat conductors 2 are arranged in parallel.

  The conductor guide roll 5 is disposed on the downstream side of the conductor supply part a and upstream of the conductor guide roll 6, and is in contact with the flat conductor 2 transferred from the conductor supply part a toward the laminating part b. Rotates in the conductor transfer direction A.

A concave groove 5 a for inserting the flat conductor 2 in the longitudinal direction is formed in parallel with the conductor transfer direction A on the peripheral surface of the conductor guide roll 5. Groove portion 5a are arrayed at a predetermined pitch interval P ₁ with respect to the axial direction perpendicular to the conductor conveying direction A (see a portion shown in FIG. 2).

That is, the rectangular conductor 2 supplied from the conductor supply unit a is inserted from the upstream side with respect to the groove 5a of the conductor guide roll 5, is regulated to the pitch P ₁ at the time of being supplied from the conductor supply unit a.

  The conductor guide roll 6 is arranged on the downstream side of the conductor guide roll 5 and on the upstream side of a conductor guide plate 7 to be described later, and the rectangular conductor 2 transferred from the conductor supply part a to the laminating part b. Rotate in the conductor transfer direction A by the contact.

Further, a concave groove 6 a for inserting the flat conductor 2 in the longitudinal direction is formed in parallel with the conductor transfer direction A on the peripheral surface of the conductor guide roll 6. The grooves 6a are arrayed at a predetermined pitch P ₂ with respect to the axial direction perpendicular to the conductor conveying direction A (see part b shown in FIG. 2).

Pitch P ₂ of the groove 6a is narrower than the pitch P ₁ of the groove 5a of the conductor guide roll 5, it is set to the pitch interval P ₂ which matches the pitch P ₃ of the groove 7a of the conductive guide plate 7 to be described later ing.

That is, the rectangular conductor 2 supplied to the downstream side of the conductor guide roll 5 is inserted from the upstream side with respect to the groove 6 a of the conductor guide roll 6, and evenly left and right toward the center of the transfer path for transferring the rectangular conductor 2. It is justified. And narrower than the pitch P ₁ of the groove 5a of the conductor guide roll 5, is regulated to the pitch P ₂ which matches the pitch P ₃ of the groove 7a of the conductive guide plate 7 to be described later.

  The flat conductor 2 is pressed against the grooves 5a and 6a of the conductor guide rolls 5 and 6 by a tensile force applied when it is transferred in the conductor transfer direction A. Further, the groove width and depth of the groove portions 5a and 6a are set to be the same as the groove width and groove depth of a groove portion 7a described later.

The conductor guide plate 7 is disposed on the downstream side of the conductor guide roll 6 and on the upstream side of the contact point B ₂ where the peripheral surfaces of the heat rolls 4 and 4 are in contact with each other. The part 7 b is arranged toward the contact part B ₂ of the heat rolls 4 and 4.

Distal end that is proximate to the contact portion B ₂ of the conductive guide plate 7 (side surface) is beak shape in which the thickness gradually becomes thinner toward the downstream side from the upstream side of the conductor conveying direction A (or wedge, triangular) Is formed. The plane of the conductor guide plate 7 is formed wider than the lateral width of the conductor group 2A in which a plurality of flat conductors 2 are arranged in parallel.

As shown in FIG. 6, a concave groove 7a for inserting the flat conductor 2 in the longitudinal direction is arranged in parallel with the conductor transfer direction A on the top surface of the conductor guide plate 7 on the leading end side for guiding the flat conductor 2. Is formed.
Also, the grooves 7a are arrayed at a predetermined pitch interval P ₃ with respect to the direction perpendicular to the conductor conveying direction A.

The distance between the side wall surfaces 7 b constituting the groove width of the groove portion 7 a is formed so as to be wider than the lateral width of the flat conductor 2. Also, the height of both side wall surfaces 7b constituting the groove depth of the groove portion 7a is formed to be higher than the thickness of the flat conductor 2 (see the c portion in FIG. 2 and the e portion in FIG. 6).
That is, since a gap is formed between both side end surfaces of the flat conductor 2 and both side wall surfaces 7b of the groove portion 7a, the flat conductor 2 is smoothly transferred along the groove portion 7a of the conductor guide plate 7 in the conductor transfer direction A. be able to.

  The guide of the flat conductor 2 by the conductor guide roll 6 and the conductor guide plate 7 will be described in detail. As shown in FIG. 2, the flat conductor 2 is directed from the groove 6a of the conductor guide roll 6 toward the groove 7a of the conductor guide plate 7. Thus, the conductor is transferred in a direction that obliquely intersects the conductor transfer direction A.

For this reason, one side end surface of the flat conductor 2 is pressed against the one side wall surface 7b of the groove portion 7a of the conductor guide plate 7, and transferred in a direction parallel to the conductor transfer direction A along the one side wall surface 7b of the groove portion 7a. Therefore, the position and interval of the flat conductor 2 can be prevented from being displaced.
As a result, it is possible to cover the rectangular conductor 2 a plurality of, the pair of insulating films 3, 3 while regulating the predetermined pitch P _3. Moreover, the influence by the pitch tolerance of the flat conductor 2 and the groove part 7a is small, and the pitch accuracy of the flat conductor 2 can be improved.

That is, one end face (left end face) of the flat conductor 2 inserted in the groove 6a of the conductor guide roll 6 is pressed against one side wall face 7b (left wall face) of the groove 7a of the conductor guide plate 7, and the groove because along one side wall 7b of 7a is transported in a direction parallel to the conductor conveying direction a, it is restricted to a predetermined pitch interval P ₃ (see FIG. 3).

For example, the flat conductor 52 is guided to an ideal state in which the horizontal width center of the flat conductor 52 and the center of the groove portion 57a of the guide roll 57 coincide with each other so as not to deviate from a predetermined pitch tolerance (difference between the maximum dimension and the minimum dimension). In this case (see a in FIG. 9), the guide roll 57 is required to have high pitch accuracy.
However, since the horizontal width of the flat conductor 52 has a tolerance (P ₃ ± 0.03 mm), if the groove width of the groove 57a is set to the maximum tolerance width (P ₃ +0.03 mm) of the flat conductor 52, the flat conductor 52 Is easily displaced in the width direction in the groove 57a.

Further, when the adjacent rectangular conductors 52 have the narrowest width within the conductor tolerance and are displaced in the direction away from or in the width direction of the groove 57a, the pitch interval (P ₃ ± 0.06 mm) is the same as the tolerance width. Shifts (see b in FIG. 9).
In this state, by the precision of the groove 57a may exceed the tolerance of the pitch P _3, it is difficult to maintain a predetermined pitch P _3.

On the other hand, as shown in FIGS. 3 and 4, the rectangular conductor 52 is displaced in a direction obliquely intersecting the conductor transfer direction A by the conductor guide roll 6, and one end face of the rectangular conductor 2 is formed on the conductor guide plate. The pitch accuracy of the flat conductor 52 is improved by pressing against the one side wall surface 7b of the groove portion 7a. Therefore, it is possible to cover the rectangular conductor 52 of the plurality of leave insulating film 53 was kept at a predetermined pitch P _3.

  As shown in FIG. 2, the conductor guide roll 6 is displaced in the width direction by a dimension that allows one end face of the flat conductor 2 to be pressed against the conductor guide plate 7 along the one side wall surface 7 b of the groove 7 a. Therefore, when the one side end face of the flat conductor 2 is pressed against the one side wall face 7b of the groove 7a, the flat conductor 2 is not deformed in the width direction and pressed with a force that does not cause damage.

In this embodiment, the center line passing through the groove center of the groove portion 6a of the conductor guide roll 6 is 3 ° to the left in the conductor transfer direction A with respect to the center line passing through the groove center of the groove portion 7a of the conductor guide plate 7. It is displaced by the angle of.
The displacement angle may be changed to a desired angle according to the width of the flat conductor 2 and the grooves 6a and 7a or the tolerance of the flat conductor 2 and the grooves 6a and 7a.

  The conductor guide roll 8 is disposed on the downstream side of the heat rolls 4 and 4 and rotates in the conductor transfer direction A by contact with the flat conductor 2 transferred from the upstream side to the downstream side of the transfer path D. .

  The conductor guide roll 8 has a support position d (a virtual line position shown in FIG. 7) set on the downstream transfer path D of the heat rolls 4 and 4 by a hydraulic or electric horizontal moving mechanism 9B. Conductor along the plane of the flat cable 1 at the standby position e (solid line position shown in FIG. 7) where the contact with the flat cable 1 or the insulating film 3 set on one side of the downstream transfer path D is avoided. It is moved horizontally in the direction orthogonal to the transfer direction A.

Further, a concave groove 8 a for inserting the flat conductor 2 in the longitudinal direction is formed in parallel on the peripheral surface of the conductor guide roll 8 in parallel with the conductor transfer direction A. Groove portion 8a are arrayed at a predetermined pitch P ₄ with respect to the axial direction perpendicular to the conductor conveying direction A (see part b shown in FIG. 2).
The pitch interval P ₄ of the groove 8 a is set to a pitch interval P ₄ that matches the pitch interval P ₃ of the groove 7 a of the conductor guide plate 7.

A manufacturing method for manufacturing the flat cable 1 by the manufacturing apparatus 10 will be described in detail below.
First, as a preparatory work before the start of production of the flat cable 1, when sandwiching the start end side of the plurality of flat conductors 2 between the pair of insulating films 3, 3, as shown in FIGS. The pair of upper and lower heat rolls 4 and 4 arranged in b are relatively moved in the up and down direction separated from each other by the up and down moving mechanism 9A.

The heating rolls 4 and 4 are separated at a separation interval where the contact of the insulating film 3 with the flat conductor 2 is avoided, and the tensile force applied to the flat conductor 2 from various vertical and horizontal directions is removed.
Further, the conductor guide roll 8 is horizontally moved to the support position d set on the downstream side of the heat rolls 4 and 4 by the horizontal movement mechanism 9B.

  Next, the plurality of rectangular conductors 2 supplied from the conductor supply part a are prevented from coming into contact with the pair of insulating films 3 and 3 pressed against the heat rolls 4 and 4, so that the heat rolls 4 and 4 are avoided. 4 are inserted from the upstream side toward the downstream side in parallel with the conductor transfer direction A.

  Further, the rectangular conductor 2 inserted between the heat rolls 4 and 4 is disposed on the downstream side of the heat rolls 4 and 4 and the groove 6 a of the conductor guide roll 6 disposed on the upstream side of the heat rolls 4 and 4. It is inserted into the groove 8 a of the conductor guide roll 8 and is regulated at a position separated by a predetermined pitch interval with respect to the direction orthogonal to the conductor transfer direction A.

  Next, the heat rolls 4, 4 are moved relative to each other in the direction in which they are brought into contact with each other by the vertical movement mechanism 9 </ b> A, and the top end side upper and lower surfaces of the rectangular conductor 2 regulated by the conductor guide rolls 6, 8 at a predetermined pitch interval On the other hand, a pair of insulating films 3 and 3 pressed by the heat rolls 4 and 4 are pressed.

  The insulating films 3 and 3 pressed against the top and bottom surfaces of the flat conductor 2 are heated and welded by a pair of upper and lower heat rolls 4 and 4 so that the flat conductor 2 is regulated at a predetermined pitch interval, and the pair of insulating films 3 , 3.

After the top and bottom surfaces of the flat conductor 2 are covered with the insulating films 3 and 3, the conductor guide roll 8 is moved horizontally in the direction perpendicular to the conductor transfer direction A by the horizontal moving mechanism 9B and retracted from the transfer path D. . Further, it is kept waiting at the standby position e until the next manufacturing start time comes.
That is, if the conductor guide roll 8 is retracted from the transfer path D after the above preparation work is completed, the contact of the conductor guide roll 8 with the flat cable 1 is avoided at the start and during the production of the flat cable 1. Therefore, the flat cable can be manufactured stably.

Next, the manufacturing work of the flat cable 1 is started.
That is, as shown in FIGS. 1 and 2, the pitch interval P ₁ when a plurality of flat conductors 2 supplied from the conductor supply part a is supplied from the conductor supply part a through the groove part 5 a of the conductor guide roll 5. To regulate.

Next, the rectangular conductor 2 inserted into the groove 5a of the conductor guide roll 5, with a pitch spacing P ₂ to be narrower than the pitch P ₁ of the conductor guide roll 5 by the groove 6a of the conductor guide roll 6, the conductive guide plate The pitch is made closer to the pitch interval P ₂ that coincides with the pitch interval P ₃ of the seven groove portions 7a.

Next, the rectangular conductor 2 inserted into the groove 6a of the conductor guide rolls 6, immediately before the lamination unit b, i.e., the groove of the conductive guide plate 7 which is disposed toward the contact portion B ₂ of the thermo roll 4,4 It is inserted into 7a, and is displaced from the groove 6a of the conductor guide roll 6 toward the groove 7a of the conductor guide plate 7 in a direction obliquely intersecting the conductor transfer direction A and transferred.

Further, as shown in FIGS. 4 and 5, the end B ₃ of the conductor guide plate 7 is as close as possible to the contact B ₂ of the heat rolls 4 and 4, so that the conductor guide plate 7 rectangular conductor 2 inserted into the groove 7a of the circumferential surface of the heat roll 4, 4 are guided infeed reliably close to the contact portion B ₂ in contact pair.

Therefore, it can be coated with a flat angle pitch P ₃ hardly displaced conductor 2, insulating while regulating the flat conductor 2 at predetermined pitches P ₃ films 3, 3 are sandwiched between the insulating films 3 and 3 .

Next, the pair of insulating films 3 and 3 are pressed against the upper and lower surfaces of the conductor group 2 </ b> A composed of a plurality of flat conductors 2 while being continuously pressed by the heat rolls 4 and 4, and the insulating films 3 and 3 are pressed. The three parts that contact each other are welded together.
Thereby, the flat cable 1 can be manufactured continuously in the longitudinal direction.

  When the portion where the flat conductor 2 and the insulating film 3 are overlapped by the heat rolls 4 and 4 is pressed in the thickness direction, the portion where the flat conductor 2 is sandwiched is compressed in the thickness direction by the elasticity of the insulating film 3, In the portion where the flat conductor 2 is not sandwiched, the upper and lower insulating films 3 and 3 are integrally bonded by heat.

  Thereby, the flat cable 1 by which the insulating films 3 and 3 were integrally coat | covered with respect to the upper and lower surfaces of the conductor group 2A formed by arranging a plurality of flat conductors 2 in parallel can be manufactured.

As described above, when the production of the flat cable 1 is started, the pair of upper and lower heat rolls 4 and 4 are moved relative to each other in a direction away from each other, and various vertical and horizontal directions applied to the flat conductor 2 are obtained. After removing the tensile force from the direction, the start end side of the plurality of flat conductors 2 inserted between the respective heat rolls 4 and 4 is predetermined by the upstream conductor guide roll 6 and the downstream conductor guide roll 8. It restricts to a position separated by a pitch interval.
Thereafter, the respective heat rolls 4 and 4 are moved relative to each other in the direction in which they are in contact with each other, and the respective insulating films are formed on the top and bottom surfaces of the rectangular conductor 2 which is regulated by the conductor guide rolls 6 and 8 at a predetermined pitch interval. 3 and 3 are pressed at the same time, and heated and welded to integrally cover them and start production.

That is, when sandwiching the starting end side of the plurality of flat conductors 2 between the pair of insulating films 3 and 3, without pitch P ₃ of the flat conductor 2 is displaced, while restricted to a predetermined pitch interval P ₃ It can be covered with a pair of insulating films 3 and 3.
Thereby, the pitch interval P3 of the flat conductor 2 sandwiched between the insulating films 3 and ₃ can be always kept constant from the start of manufacture of the flat cable 1 to the end of manufacture, and the pitch accuracy of the flat conductor 2 is improved. Can be achieved.

FIG. 8 is a side view showing the manufacturing apparatus 10 of another embodiment.
In the manufacturing apparatus 10 of this embodiment, the conductor guide roll 6 having the function of the conductor guide roll 8 is reciprocated between the upstream side and the downstream side of the thermal rolls 4 and 4 by a hydraulic or electric reciprocating mechanism 9C. It is a configuration that moves.

  The conductor guide roll 6 is horizontally moved in parallel with the conductor transfer direction A to the upstream and downstream sides of the heat rolls 4 and 4 by the reciprocating mechanism 9C. Further, when reciprocating between the upstream side and the downstream side, the plate is once horizontally moved to one side of the transfer path D and then horizontally moved to the upstream side and the downstream side of the heat rolls 4 and 4.

  First, when the starting end side of the flat conductor 2 is sandwiched between the insulating films 3 and 3, the conductor guide roll 6 is moved downstream of the heat rolls 4 and 4 by the reciprocating mechanism 9C, and then a plurality of flat conductors 2 are attached. , Inserted in the groove 5a of the conductor guide roll 5 disposed on the upstream side of the heat rolls 4 and 4 and the groove 6a of the conductor guide roll 6 moved to the downstream side of the heat rolls 4 and 4, and the conductor transfer direction A Is restricted to a position separated by a predetermined pitch interval with respect to a direction orthogonal to.

  Thereafter, the pair of insulating films 3 and 3 pressed by the heat rolls 4 and 4 are pressed against the top and bottom surfaces of the flat conductor 2 restricted by the conductor guide rolls 5 and 6 at a predetermined pitch interval. Weld and coat integrally.

  Next, when a flat cable is continuously manufactured while sandwiching a plurality of flat conductors 2 between the insulating films 3 and 3, the conductor guide roll 6 is moved upstream of the heat rolls 4 and 4 by the reciprocating mechanism 9C. After the movement, the insulating films 3 and 3 are manufactured by covering the upper and lower surfaces of the flat conductor 2 regulated at a predetermined pitch interval by the conductor guide rolls 5 and 6.

  As a result, one conductor guide roll 6 is sandwiched between the insulating films 3 and 3 at the starting end side of the flat conductor 2, and the flat cable 1 is continuously connected while the flat conductor 2 is sandwiched between the insulating films 3 and 3. Therefore, it is not necessary to arrange the conductor guide roll 8 on the downstream side of the heat rolls 4 and 4, and the configuration and structure of the entire apparatus can be simplified. In addition, substantially the same operations and effects as those of the above embodiment can be achieved.

In the correspondence between the configuration of the present invention and the embodiment,
The conductor of the present invention corresponds to the flat conductor 2 of the embodiment,
Similarly,
The vertical movement means corresponds to the vertical movement mechanism 9A,
The horizontal movement means corresponds to the horizontal movement mechanism 9B,
The reciprocating means corresponds to the reciprocating mechanism 9C,
The conductor guide means corresponds to the conductor guide rolls 6 and 8,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

In the embodiment, the starting end side of the flat conductor ₂ is restricted to a predetermined pitch interval P ₂ using the conductor guide roll 6 disposed on the upstream side of the heat rolls 4, 4. the conductive guide plate 7 may be regulated to a predetermined pitch P ₃ with.
Moreover, you may move one heat roll 4 up and down in the direction spaced apart with respect to the other heat roll 4 by the vertical movement mechanism 9B.

Instead of the conductor guide roll 8, a wedge-shaped conductor guide plate as viewed from the side may be disposed on the downstream side of the heat rolls 4, 4 so as to face the conductor guide plate 7. That is, by using the conductor guide plate on the downstream side and the conductor guide plate 7 together, the rectangular conductor 2 can be fed and guided closer to the contact point B ₂ of the heat rolls 4 and 4.

Accordingly, the rectangular conductor 2, more precisely can be restricted to a predetermined pitch distance P _3, the positioning accuracy is further improved. In addition, since the distance between the insulating films 3 and 3 between which the flat conductor 2 is sandwiched can be narrowed to reduce the amount of movement of the heat rolls 4 and 4, the time required for vertical movement can be shortened to increase efficiency. be able to.

A ... Conductor transfer direction D ... Transfer path 1 ... Flat cable 2 ... Flat rectangular conductor 2A ... Conductor group 3 ... Insulating film 4 ... Heat roll 5, 6, 8 ... Conductor guide roll 7 ... Conductor guide plates 5a, 6a, 7a, 8a ... Groove 9A ... Vertical movement mechanism 9B ... Horizontal movement mechanism 9C ... Reciprocating movement mechanism 10 ... Manufacturing equipment

Claims (8)

While sandwiching a plurality of conductors arranged in parallel in parallel with the conductor transfer direction between a pair of insulating films, the insulating films are heated and welded by a pair of upper and lower heat rolls, and the conductors are paired. In the flat cable manufacturing method covered with an insulating film of
In a state where the pair of upper and lower heat rolls are moved relative to each other in the direction of being separated from each other by the vertical movement means, and are separated at intervals at which contact of each insulating film with respect to each conductor is avoided.
The conductors are parallel to the conductor transfer direction from the upstream side to the downstream side between the opposed peripheral surfaces of the respective heat rolls so that contact with the respective insulating films pressed against the respective heat rolls is avoided. And insert
Each of the conductors is restricted to a position separated by a predetermined pitch interval with respect to a direction orthogonal to the conductor transfer direction by means of conductor guides arranged on the upstream side and the downstream side of each heat roll,
The pair of upper and lower heat rolls are moved relative to each other in the direction in which they are in contact with each other by means of vertical movement means, and each insulating film is applied to the top and bottom surfaces of the respective conductors that are regulated at a predetermined pitch interval by each conductor guide means. Pressing,
After heating and welding each insulating film pressed against the top and bottom surfaces of the respective conductors with the respective heat rolls,
A flat cable manufacturing method in which the downstream conductor guide means is retracted from the downstream side of each heat roll, and each conductor is covered with a pair of insulating films while being regulated at a predetermined pitch interval. The flat cable manufacturing according to claim 1, wherein the upper and lower surfaces of the conductor on the start end side are covered with each insulating film, and the downstream conductor guide means is kept waiting at a position retracted from the downstream side of each of the heat rolls. Method. When the pair of upper and lower heat rolls are separated vertically, the conductor guide means on the downstream side is horizontally moved to the downstream side of each heat roll by a horizontal moving means,
The said downstream side conductor guide means is retracted | saved from the downstream of each said heat roll by the said horizontal movement means, when each insulating film is heated and welded with respect to the starting end side upper and lower surfaces of each said conductor. Flat cable manufacturing method. 2. The downstream conductor guide means is moved by a reciprocating means to a position upstream of each of the heat rolls, a position behind the upstream conductor guide means, and a position downstream of the heat rolls. The flat cable manufacturing method as described in any one of -3. The said conductor guide means is comprised with the roll-shaped conductor guide roll in which the groove part for inserting the said conductor was formed at predetermined pitch intervals with respect to the direction orthogonal to a conductor transfer direction. The flat cable manufacturing method as described in any one. While sandwiching a plurality of conductors arranged in parallel in parallel with the conductor transfer direction between a pair of insulating films, the insulating films are heated and welded by a pair of upper and lower heat rolls, and the conductors are paired. In flat cable manufacturing equipment covered with an insulating film of
Relative to each of the heat rolls, a separation position that is spaced apart from each other so as to avoid contact of each insulating film with respect to each conductor, and a contact position that is in contact with the spacing at which each insulating film is pressed against each conductor. Moving up and down moving means;
Conductor guide means disposed on the upstream side and the downstream side of each of the heat rolls, and restricting the conductors at positions spaced by a predetermined pitch interval with respect to a direction orthogonal to the conductor transfer direction;
Horizontal movement means for horizontally moving the downstream conductor guide means to a support position for supporting the conductors on the downstream side of the thermal rolls and a standby position retracted from the downstream side of the thermal rolls; Equipped with flat cable manufacturing equipment. Reciprocating means for reciprocating the downstream conductor guide means is provided at a position upstream from the upstream conductor guide means on the upstream side of each of the thermal rolls and a downstream position of the respective heat rolls. The flat cable manufacturing apparatus according to claim 6. The said conductor guide means is comprised by the roll-shaped conductor guide roll in which the groove part for inserting the said conductor was formed at predetermined pitch intervals with respect to the direction orthogonal to a conductor transfer direction. Flat cable manufacturing equipment.

Images