JPH1013021A - Intermediate product of flexible wiring body, its working device, and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and precisely perform the cutting work of a flexible wiring body, by forming slits which divide the external size of the final product of the flexible wiring body into sections through a laminated body in such a state that margins are left on the laminated body for sticking reinforcing plates. SOLUTION: Each linear conductor 2 forms a prescribed conductor pattern. A by repeating a waveform pattern. A laminated body (f) having slits S is cut into belt-like bodies along cutting lines L1 drawn in parallel with the longitudinal direction of the pattern A. Tapes 15 constituting reinforcing plates 5 are stuck to parts B by, for example, press work. Then intermediate formed products are formed by cutting the laminated body (f) along cutting lines L2 crossing the tapes 15 in the longitudinal direction. The conductor pattern A of each intermediate formed product is divided into sections while the parts B are left for sticking the reinforcing plates 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermediate molded product of a flexible wiring body and a processing apparatus and a manufacturing method thereof, and more particularly, to an intermediate molded product of a flexible wiring body used for internal wiring of OA equipment, home electric appliances, automobiles and the like. And a processing apparatus and a manufacturing method thereof.

[0002]

2. Description of the Related Art FIG. 11 shows a general flexible wiring body F.
FIG. As shown in FIG. 1, a general flexible wiring body F is a general term for a flexible flat cable and a flexible printed circuit, and is formed by arranging a substantially linear conductor 2 on a base film 1. After the conductor pattern P is formed, the cover lay film 3 is bonded on the conductor pattern P. In the drawings, 2A is a conductor exposed portion connected to a connector (not shown), and 5 is a reinforcing plate for reinforcing the conductor exposed portion 2A.

When manufacturing the flexible wiring body F,
A conductor pattern P is continuously formed using a XY plotter on a film on which a plurality of base films 1 can be continuously formed, and is covered with a film constituting the coverlay film 3 and laminated thereon. A method of cutting into a final form is employed. As shown in FIG. 11, the final laminated wiring body F has a streamlined shape.

[0004]

In order to mass-produce the above-described flexible wiring body F, it is necessary to efficiently cut a shape to be a final product from a continuously formed conductor pattern P. However, since the general flexible wiring body F has a streamlined shape as shown in FIG. 11, it has been difficult to cut it precisely and quickly. That is, when cutting using a hand tool such as a cutter or scissors, the operator needs to be skilled, which is not preferable. Conversely, when a press or the like is used, there is a problem that the cost of the mold is high, so that it is not suitable for high-mix low-volume production.

[0005] Therefore, it is conceivable to perform cutout processing using an XY plotter for wiring the conductor pattern P. However, when manufacturing the flexible wiring body F,
After completing the wiring step, it is necessary to temporarily remove the intermediate molded product from the XY plotter and perform a laminating process, attaching the reinforcing plate 5, and the like. For this reason, heat shrinkage occurs in the processed intermediate molded product, and the thickness of the intermediate molded product is increased by the attachment of the reinforcing plate. Even if such an intermediate molded product is mounted again on the XY plotter and cut, a positional shift occurs, or a portion having a different thickness cannot be cut accurately,
There was a problem that precise cutting work could not be performed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an intermediate molded product of a flexible wiring body capable of performing a cutting operation of the flexible wiring body quickly and precisely, and an apparatus and a method for manufacturing the same. Is an issue.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 comprises a conductor that continuously forms a plurality of electric circuits and a pair of insulating resin films that laminate the conductors. The electric circuit is divided into the above-mentioned electric circuits in a state where a reinforcing plate for reinforcement is adhered to a portion constituting a conductor exposed portion exposing a part of the conductor in the insulating resin film. Thereby, in the intermediate molded product of the flexible wiring body to be the final product, a slit for defining the outer shape of the final product is formed in the laminate, leaving a portion where the reinforcing plate is stuck. An intermediate molded product of a flexible wiring body.

[0008] In the invention including the specific matter, since the slit forming the outer shell of the final product is formed in the insulating resin film and the portion where the reinforcing plate is adhered is continuous, the reinforcement is performed after the slit is formed. As a result of being able to perform a plate attaching process and a laminating process, a slit can be formed using a processing device such as a plotter. According to a second aspect of the present invention, in the intermediate molded article of the flexible wiring body according to the first aspect, portions to which the reinforcing plate is attached are formed at both end edges of the insulating resin film. is there.

[0009] In the invention including the specific matter, since the portions that connect the parts to be the final product are formed at both end edges, positioning and processing are easy when dividing into the final product. There is an advantage. Claim 3
According to a first aspect of the present invention, there is provided a processing apparatus for processing an intermediate molded product of a flexible wiring body according to the first aspect of the present invention to cut the intermediate product into a final product. A plurality of slits formed on the free end side of the intermediate molded product and arranged in parallel corresponding to the portion to be cut of the intermediate molded product, and the portion of the intermediate molded product to be cut through the corresponding slit provided for each slit A cutting member facing the cutter, a positioning member for positioning the intermediate molded product on an elastic plate so as to face a portion of the intermediate molded product to be cut through a slit, and a positioning member for positioning the intermediate molded product on the elastic plate. A press unit configured to be operable between a pressing position for pressing the object and a release position for releasing the intermediate molded product, and for pushing the intermediate molded product together with the elastic plate into the cutter at the pressing position. Preparative a machining apparatus according to claim.

In the invention including the specific matter, by operating the pushing unit from the release position to the pressing position, the intermediate molded product is pushed into the cutter together with the elastic plate. The part of the molded product to be cut is cut by a cutter. Thereafter, by returning the pushing unit to the release position, the elastic plate is brought into a free state. As a result, the intermediate molded product cut into the cutter is automatically separated from the cutter by the restoring force.

According to a fourth aspect of the present invention, in the processing device of the third aspect, the free end of the elastic plate provided in the pushing unit and pushed in when the pushing unit is displaced to the pressing position. And a locking member that stops and separates the free end of the elastic plate from the cutter when the pushing unit is displaced from the pressing position to the releasing position.

In the invention including the specific matter, the elastic plate bent by the locking member is forcibly returned to the original posture. The invention according to claim 5 is the same as the claim 3.
The processing apparatus according to the above, further comprising: a mounting member capable of changing an elastic plate in accordance with the type of the intermediate molded product; and a facing space adjusting means capable of changing the facing space of the cutter corresponding to the changed elastic plate. Is what it is.

According to the invention including the specific matter, it is possible to change the facing distance between the elastic plate and the cutter corresponding to the intermediate molded portion to be cut. According to a sixth aspect of the present invention, there is provided a method of manufacturing an intermediate molded product of a flexible wiring body for manufacturing an intermediate molded product of a flexible wiring body according to the first or second aspect, wherein the pair of insulating resins laminated with a conductor are provided. After forming the laminate of the film, the laminate is provided with a step of forming, with an XY plotter, a slit for defining the form of the final product in a state where a portion constituting the conductor exposed portion is left. This is a method for producing an intermediate molded product of a wiring body.

According to the invention including the specific items, it is possible to form a part of the form of the final product by using the XY plotter that has performed the wiring work.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A preferred embodiment of the present invention will be described in detail. 1 and 2 are process diagrams showing a manufacturing process of a flexible wiring body according to one embodiment of the present invention, and FIGS. 3 to 6 are diagrams of an intermediate molded product manufactured according to one embodiment of the present invention. It is a front partial schematic diagram.

First, as shown in FIG. 1, in the illustrated example, an adhesive film 13 constituting the base film 1 is mounted on a stage 12 of a well-known XY plotter 11 with its adhesive surface 13A facing up. Place. As the adhesive film 13, for example, a thickness of 25 μm (75 μm including an adhesive layer)
In the case where heat resistance is not required, a polychlorinated film can be used. On the adhesive surface 13A of the adhesive film 13,
Release paper 13B is stuck. When placing the adhesive film 13 on the stage 12, the release paper 13
Place so that B faces upward. A large number of holes 12A are formed in the stage 12, and the adhesive film 13 placed on the stage 12 can be sucked and stopped by sucking air from the holes 12A by a suction device (not shown). Has become.

The XY plotter 11 is provided with a head unit 11A which can be displaced in the XY directions, and is mounted on the stage 12 by attaching a cutter (not shown) to a head portion 11B of the head unit 11A. For example, as shown in FIG. 2, a cut 13 is formed in a portion 13 </ b> C that constitutes a conductor exposed portion.
D is entered.

As shown in FIG. 2, when the cut 13D is formed in the adhesive film 13, the release paper 13B in the portion surrounded by the cut 13D is peeled off, and a wiring step is performed. In the wiring step, the XY plotter 11 draws a wiring pattern having a spirally folded portion (not shown), so that one linear conductor 2 is continuously wired in a single stroke.

Referring to FIG. 3, each linear conductor 2 forms a predetermined conductor pattern A by repeating a waveform pattern as shown. Although omitted in the figure, one conductor pattern A is formed of a plurality of linear conductors 2.
This forms a multi-pole electric circuit. After this wiring work, the film 14 constituting the coverlay film 3
To form a laminate f in which the conductors 2 are laminated. Next, as shown in the upper part of FIG. 3, a cutter 11C is attached to the head unit 11A (see FIG. 1) of the XY plotter described above, and a slit S is formed in a streamlined shape to be a final product. Here, the slit S is not formed in the portion B of the laminate f to which the reinforcing plate 5 is adhered.
Therefore, the laminated body f is integrally continuous with the portion B despite the formation of the slit S.

Referring to FIG. 4, the laminated body f in which the slit S is formed is cut into a band along a cut line L1 parallel to the longitudinal direction of the conductor pattern A. Here, the laminate f is removed from the XY plotter 11 described above. The laminate f cut into a band shape is subjected to a laminating process by an ordinary method. Thereafter, as shown in FIG.
The tape 15 constituting the reinforcing plate 5 is adhered by, for example, press working. Next, the laminate f is cut by a suitable cutting device (not shown) along a cutting line L2 that traverses the tape 15 to form an intermediate molded product M as shown in FIG.

In the embodiment shown, six end products can be obtained from one intermediate molded product M. And
Each conductor pattern (electric circuit) A of the intermediate molded product M has a portion B to which the reinforcing plate 5 is adhered by the slit S described above.
It is divided individually, leaving only the surplus. Then, the above-described portion B of the intermediate molded product M is processed by the processing device 2 described below.
According to 0, the flexible wiring body F as a final product is manufactured by cutting along the cutting line L3.

FIG. 7 is a perspective view showing a processing apparatus for cutting the intermediate molded product M of FIG. 6 into a final product, and FIG.
4 is an enlarged partial schematic view showing a main part of the processing device of FIG.
With reference to these figures, the processing device 20 for the intermediate molded product M
Includes a base 21, a cutting unit 22 fixed on the base 21, and a pushing unit 24 that presses the flexible wiring body F on the cutting unit 22.

The base 21 is a rectangular sheet metal member, and is of a desktop type having units 22 to 24 carried on its upper surface. Referring to FIG. 8, the cutting unit 22 includes an elastic plate 22A made of resin. One end of the elastic plate 22A is fixed by a substantially square-shaped attachment member 22C fixed to the base 21 with bolts 22B,
The other end is supported in a free cantilever shape. This allows the elastic plate 22A to bend its free end to the base 2.
1 is levitated above.

A number of slits 22D are formed at the free end of the elastic plate 22A. The slit 22D is formed corresponding to a portion of the intermediate molded article M to be cut to be cut. In the illustrated example, the elastic plate 22A is changed according to the intermediate molded product M to be cut by exchanging the mounting member 22C, so that versatility can be provided.

FIG. 9 is an exploded perspective view showing the configuration of the cutter and the cutter holder included in the cutting unit. As shown in FIG. 8 and FIG. 8, the cutting unit 22 includes a plurality of cutters 22E provided for each slit 22D, a spacer 22F interposed between the cutters 22E and 22E, and a cutter 22E and a spacer 22F. And a cutter holder 23 for holding. The cutter holder 23 has bolts 23
The cutter 22 </ b> E and the spacer 22 </ b> F are detachably held by the cutter holder 23.

The cutter holder 23 has a frame portion 23A formed in a substantially rectangular frame shape in plan view. This frame part 2
The cutter 22E and the spacer 22F are accommodated in the accommodating portion C partitioned into 3A, so that each cutter 22E faces the slit 22D of the elastic plate 22A. In order to stop the cutter 22E and the spacer 22F, a block 2 is attached to one end of the frame 23A.
3B are integrally formed, and a bolt 23D is screwed into a screw hole 23C screwed into the block 23B and tightened between the other end of the frame portion 23A to stop the cutter 22E and the spacer 22F. Is to be determined. Also, the bolt 23D and the spacer 22F on one end side are used.
Between the cutter 22E and the spacer 2 through the pressing member 23E.
2F is stopped. In the illustrated example, the pressing member 2
3E is formed in a T-shape in which only the lower end portion is slidably fitted in the housing portion C.

Further, on the upper surface of the other end of the frame portion 23A, a positioning member 23 on the fixed side protruding from the side of the elastic plate 22A is provided.
F is fixed, and a movable-side positioning member 23G for positioning the intermediate molded product M in cooperation with the fixed-side positioning member 23F is attached to the pressing member 23E. These positioning members 23F, 23
G allows the intermediate molded article M to be positioned on the elastic plate 22A such that the portion of the intermediate molded article M to be cut faces the cutter 22E via the slit 22D.

FIGS. 10A and 10B are schematic cross-sectional views showing the main parts of the pushing unit, wherein FIG. 10A shows a case where the pressing unit is in a release position and FIG. As shown in FIG. 10 and FIGS. 7 and 8, the pushing unit 24 is
And a pair of pillars 24A provided upright. The upper end of each pillar 24A is bent at a right angle and faces substantially directly above a slit 22D formed in the elastic plate 22A, and a pair of handles having free ends connected by handles 24B on both sides thereof. The base end of 24C is connected by a shaft 24D. On the other hand, a mounting member 24E is sandwiched and fixed to the upper end of each pillar 24A, and a lifting rod 24F is mounted on the mounting member 24E so as to be able to move up and down. The lifting rod 24F and the handle 24C are connected via a link member 24G. The link member 24G and the handle 24C are connected as shown, so that when the handle 24C rotates as shown by the arrow A1 in FIG. Press down 24F,
In the subsequent stroke, it turns around the arrow A2 and pushes down the lifting rod 24F. On the other hand, a pressing plate 24J is detachably fixed to the lower end of the lifting rod 24F via a mounting member 24H.
With J, the intermediate molded product M positioned in the cutting unit 22 can be pressed. This allows
The pushing unit 24 is configured to be operable between a release position (see FIG. 10A) for releasing the intermediate molded product and a pressing position (see FIG. 10B) for pressing the positioned intermediate molded product M. Have been. In addition, the above-described lifting rod 24F
A large-diameter head 24K is formed at the upper end portion of the head, and a compression coil spring 24L is interposed between the head 24K and the mounting member 24E. Therefore, by the compression coil spring 24L, the pushing unit 24 is
In the free state, the posture shown in FIG. 1 is maintained, and the pressing plate 24 </ b> J floats right above the cutting unit 22.

Further, a locking member 25 made of sheet metal is attached to the pressing plate 24J. The locking member 25 includes a mounting portion 25A along the upper surface of the pressing plate 24J and a mounting portion 2A.
A hanging part 25B hanging from a free end of 5A and a hanging part 25;
B has a hook 25C extending from the lower end thereof, and when the pressing plate 24J is displaced to the pressing position, the hook 25C is locked to the free end of the pushed elastic plate 22A. When the pressing plate 24J is displaced from the pressing position to the releasing position, the free end of the elastic plate 22A is separated from the cutter 22E.

Next, the step of cutting the intermediate molded product M shown in FIG. 6 will be described. As shown in FIG.
Are positioning members 23F provided on the base 21,
By 23G, it is positioned on the elastic plate 22A. When the handle 24C of the pushing unit 24 is operated in this state, the pressing plate 24J descends from the release position shown in FIG. 10A to the pressing position shown in FIG. 10B, so that the intermediate molded product M becomes the elastic plate 22A. As a result, the portion of the intermediate molded product M to be cut is cut by the cutter 22E in a state where the elastic plate 22A is elastically curved. Thereafter, by returning the pushing unit 24 to the release position, the elastic plate 22A is brought into a free state. As a result, the intermediate molded product M cut by the cutter 22E by its restoring force.
Is automatically separated from the cutter 22E. By sequentially performing this operation on both edge portions of the intermediate molded product M, the intermediate molded product M is divided into flexible wiring bodies F as final products.

As described above, in the illustrated example,
Since it is possible to perform the attaching step and the laminating step of the reinforcing plate 5 after forming the slit S constituting the outer contour of the final product in the laminated body f of the insulating resin film, even when performing multi-product small-quantity production. It becomes easy to divert a processing device such as the XY plotter 11, and a remarkable effect that a highly accurate cutting operation can be easily and quickly performed even when a flexible wiring body F having a complicated shape is finished.
In addition, since it is possible to configure the final product simply by separating the portion B to which the reinforcing plate 5 is attached with the processing device 20 as described above, it is possible to relatively easily obtain the final product from the laminate f. There is also the advantage that it becomes possible.

In particular, in the case where an intermediate molded article M as illustrated in FIG. 6 is formed, positioning and processing are easy when the intermediate molded article M is cut into a final product. There is an advantage that accuracy and workability are improved. Further, by using the processing device 20 of FIG. 8, when the final product is processed from the intermediate molded product M, the final product can be easily cut by one cutting operation, so that the workability is further improved. There is an advantage of doing so.

Further, in the specific example shown, the elastic plate 22A
Is forcibly returned by the locking member 25, so that the intermediate molded product M
This has the advantage that it is possible to forcibly prevent the adhesion of the particles. In addition, in the illustrated example,
The elastic plate 22A and the cutter 22E can be made versatile, and there is an advantage that a plurality of types of intermediate products M can be handled.

In the illustrated processing example, since the wiring work and the cutting work can be performed using the same XY plotter 11, there is an advantage that the flexible wiring body F can be manufactured more easily. The above-described embodiment is merely a preferred specific example of the present invention, and the present invention is not limited to the above-described embodiment. It goes without saying that various modifications are possible within the scope of the claims of the present invention.

[0035]

As described above, according to the first aspect of the present invention, the slits forming the outer shell of the final product are formed in the laminated body of the insulating resin film, and then the step of attaching the reinforcing plate and the step of laminating are performed. Since it is possible to apply, it is easy to divert a processing device such as an XY plotter even when performing high-mix low-volume production, and easy to perform high-precision cutting work even when finishing a flexible wiring body with a complicated shape. In addition, there is a remarkable effect that it can be performed quickly. In addition, since the final product can be formed only by cutting off the portion where the reinforcing plate is attached, there is an advantage that the final product can be relatively easily obtained from the laminate.

In particular, according to the second aspect of the invention, when the intermediate molded product is cut into the final product, positioning and working are facilitated, and thus there is an advantage that working accuracy and workability are improved. According to the third aspect of the present invention, when the final product is processed from the intermediate molded product, the final product can be easily cut by one cutting operation, so that the workability is further improved. is there.

According to the fourth aspect of the present invention, since the elastic plate is forcibly returned by the locking member, even if the intermediate molded product tries to adhere to the cutter by the adhesive layer of the intermediate molded product, this is forced. There is the advantage that it is possible to block. According to the fifth aspect of the present invention, the elasticity of the elastic plate and the cutter can be made versatile, so that there is an advantage that a plurality of types of intermediate molded products can be cut.

According to the sixth aspect of the present invention, the same X
Since the wiring work and the cutting work can be performed using the Y plotter, there is an advantage that the flexible wiring body can be manufactured more easily.

[Brief description of the drawings]

FIG. 1 is a process diagram showing a manufacturing process of a flexible wiring body according to an embodiment of the present invention.

FIG. 2 is a process diagram showing a manufacturing process of a flexible wiring body according to one embodiment of the present invention.

FIG. 3 is a schematic front view of an intermediate molded article manufactured according to an embodiment of the present invention.

FIG. 4 is a schematic front view of an intermediate molded article manufactured according to an embodiment of the present invention.

FIG. 5 is a schematic front view of an intermediate molded article manufactured according to an embodiment of the present invention.

FIG. 6 is a schematic front partial view of an intermediate molded product manufactured according to an embodiment of the present invention.

7 is a perspective view showing a processing device for cutting the intermediate molded product M of FIG. 6 into a final product.

8 is an enlarged partial schematic view showing a main part of the processing apparatus of FIG. 7 in an enlarged manner.

FIG. 9 is an exploded perspective view showing a configuration of a cutter and a cutter holder included in the cutting unit.

FIGS. 10A and 10B are schematic cross-sectional views showing a main part of the pushing unit, wherein FIG. 10A shows a case where the pressing unit is in a release position and FIG.

FIG. 11 is a schematic plan view of a general flexible wiring body.

[Explanation of symbols]

 f Laminated body (intermediate formed product) F Flexible wiring body M Intermediate molded product 20 Processing device 22A Elastic plate 22E Cutter 22F Spacer 23F Positioning member 23G Positioning member 24 Pushing unit 25 Locking member

Continued on the front page (72) Inventor Kazuo Ito 1-114 Nishisuehirocho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd.

Claims (6)

[Claims] 1. A laminated body having a conductor that continuously forms a plurality of electric circuits and a pair of insulating resin films for laminating the conductors, wherein the insulating resin film
Intermediate molding of a flexible wiring body that is a final product by being divided into the above-mentioned electric circuits in a state where a reinforcing plate for reinforcement is adhered to a portion constituting a conductor exposed portion that exposes a part of the conductor. An intermediate molded product of a flexible wiring body, wherein a slit for defining an outer shape of a final product is formed in the laminate, leaving a portion where a reinforcing plate is stuck. 2. The intermediate molded article according to claim 1, wherein the portion to which the reinforcing plate is attached is formed at both end edges of the laminate. 3. A processing apparatus for processing an intermediate molded product of a flexible wiring body according to claim 1 and dividing the intermediate product into a final product, wherein the elastic plate has a cantilever shape on which the intermediate molded product can be placed. A plurality of slits formed on the free end side of the intermediate molded product and arranged in parallel corresponding to the portion of the intermediate molded product to be cut, and the portion of the intermediate molded product to be cut through the corresponding slit provided for each slit. A cutter facing the cutter, a positioning member for positioning the intermediate molded product on an elastic plate so as to face a portion of the intermediate molded product to be cut through the slit to the cutter, and the positioned intermediate molded product. It is configured to be operable between a pressing position for pressing the object and a release position for releasing the intermediate molded product,
A processing unit comprising a pressing unit for pressing the intermediate molded product together with the elastic plate into the cutter at the pressing position. 4. The processing apparatus according to claim 3, wherein said pushing unit is provided on said pushing unit, and is engaged with a free end of said elastic plate pushed when said pushing unit is displaced to said pressing position, and is also provided from said pressing position. A processing apparatus further comprising a locking member for pulling a free end of an elastic plate away from a cutter when a pushing unit is displaced to a release position. 5. The processing apparatus according to claim 3, wherein an attachment member capable of changing an elastic plate according to a type of the intermediate molded product, and an opposing member capable of changing an opposing interval of the cutter corresponding to the changed elastic plate. A processing apparatus further comprising an interval adjusting unit. 6. A method for producing an intermediate molded product of a flexible wiring body according to claim 1 or 2, wherein a laminate of a pair of insulating resin films laminated with a conductor is provided. A step of forming, with an XY plotter, a slit for defining the form of the final product in a state in which a portion constituting a conductor exposed portion is left in the laminate, after forming the laminate, intermediate molding of a flexible wiring body. Method of manufacturing a product.