JPH0453047B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a tape-shaped electric wire in which a plurality of conductors are arranged in parallel between two tape-shaped cover films.

2. Description of the Related Art Tape-shaped electric wires are manufactured by feeding cover films from above and below a plurality of running conductors, laminating the conductors, and then slitting the conductors in the width direction to an appropriate length. The tape electric wire obtained in this way is covered with a cover film up to the end, so when using this tape electric wire for direct connection between electronic devices, the end of the cover film must be peeled off to expose the conductor. However, this peeling work was extremely time-consuming.

Therefore, when manufacturing tape-shaped electric wires, window holes are made in advance at regular intervals in each of two cover films, and the conductors running in parallel are laminated while feeding the cover film from above and below so that the window holes match. A method has been developed in which the resulting laminate is then slit in the width direction at the locations of the window holes, and both ear portions are also cut and removed.

However, this method has the following problems. In other words, not only does the hollowed out part of the window become a loss, but since the window cannot be provided across the width of the film, the width on both sides of the window must be sufficient to maintain the strength of the film. However, these ears are all lost, and furthermore, since tension is applied when supplying and running the cover film, the cover film is likely to be deformed due to the presence of the window hole. For example, it is difficult to precisely match the window holes in the upper and lower cover films.

In order to overcome these problems, attempts have been made to attach reinforcing tape made of a material with low elongation to different side edges of the upper and lower cover films (for example, Japanese Patent Publication No. 58-34882). Although this suppresses the deformation of the cover film to some extent, the process of attaching the reinforcing tape becomes complicated, and the reinforcing tape is used not only at both ears and the cut-out part of the cover film, but also at the final part. The disadvantage is that everything is lost.

Problems to be Solved by the Invention The present invention attempts to solve the problems of the above-mentioned conventional methods by a method different from these window hole forming methods.

Means for Solving the Problems The present invention provides the following steps in manufacturing a tape-shaped electric wire in which a plurality of conductors 2 are arranged in parallel between two tape-shaped cover films 1, 1. , its supply roll 3,
3, feeding the supplied cover films 1, 1 to the conveying surfaces 4a, 4a of a pair of vacuum suction type conveying machines 4, 4 arranged opposite each other, and running the supplied cover films 1, 1 while being sucked by the conveying surfaces 4a, 4a, respectively. That is, the respective cover films 1, 1 are slit in the width direction intermittently on the conveying surfaces 4a, 4a, and simultaneously with the slitting operation, the supply of the cover films 1, 1 to the conveying surfaces 4a, 4a is temporarily stopped. The vehicle is stopped or decelerated to delay the running of the cover films 1, 1 on the rear side in the running direction after slitting, and then the cover films 1, 1 on the front side in the running direction and the cover films 1, 1 on the rear side in the running direction are On the other hand, a plurality of conductors 2... are supplied between the opposing surfaces 4b, 4b of the vacuum suction type conveyor 4, 4 and run in parallel, and the conductors 2... are slit by the above. The conductor 2... is sandwiched between the cover films 1, 1, which are arranged in sequence, to form a continuous tape in which the part where the conductor 2... is sandwiched from above and below by the cover film 1, 1 and the exposed part of the conductor 2... are arranged alternately. The continuous tape is slit in the width direction at the exposed portion of the conductor 2 to obtain a unit slit tape, and the continuous tape before the slitting operation or the unit slit tape after the slitting operation is heated and pressurized to form upper and lower cover films. 1. A method for manufacturing a tape-shaped electric wire, comprising: integrally laminating 1, 1 and a conductor 2.

By adopting a method that is completely different from conventional window hole forming methods, the above-mentioned problems have been solved at once.

Hereinafter, the present invention will be explained in detail by giving examples.

Examples Example 1 Fig. 1 is a side view showing an example of the manufacturing process of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of a tape-shaped electric wire obtained thereby, and Fig. 4 is a side view showing an example of the manufacturing process of the present invention. That A-
It is an A sectional view. However, in FIG. 2, some of the constituent members of the apparatus are omitted and the cover film is shown by a diagonally drawn line.

Reference numeral 1 is a tape-shaped cover film made of an insulating and heat-melting plastic film, and 2 is a conductor made of copper foil, copper wire, aluminum foil, or other conductive material.

Two cover films 1, 1 are wound around supply rolls 3, 3, respectively, and these rolls 3,
Cover films 1, 1 are fed out from 3. A brake mechanism (not shown) is attached to the rolls 3, 3, so that the unwinding of the cover films 1, 1 from the rolls 3, 3 can be slowed down in a timely manner.

4 and 4 are a pair of vacuum suction type rollers (an example of a vacuum suction type conveyor) arranged opposite to each other.
The rollers 4, 4 are provided with a large number of minute holes 5, and the inside of the rollers 4, 4 can be reduced in pressure by the operation of a vacuum pump (not shown).

6, 6 is a roller surface (conveying surface) 4 for the cover films 1, 1 supplied to the vacuum suction type rollers 4, 4.
A, 4a is a presser roll that presses, and is configured to be switchable between a pressed state and a pressed state by arms 7, 7.

Reference numerals 8, 8 are slitters provided close to the roller surfaces 4a, 4a of the vacuum suction type rollers 4, 4, and are used to cut the cover films 1, 1 in the width direction intermittently. The operation of the slitters 8, 8, the operation of the brake mechanism for the rolls 3, 3, and the operation of the arms 7, 7 for the presser rolls 6, 6 are interlocked with each other.

Reference numeral 9 denotes a supply roll for supplying the conductors 2 between the opposing surfaces 4b, 4b of the vacuum suction rollers 4, 4, and a plurality of conductors 2 are wound around the supply roll 9 in parallel. Reference numeral 10 denotes a guide roll that guides the conductors 2 between the opposing surfaces 4b, 4b.

The conductor 2... sent between the opposing surfaces 4b, 4b of the vacuum suction type rollers 4, 4 is held between the cover films 1, 1 from above and below.

11, 11 are pressure rolls that support the continuous tape held in this way, 12 is a guide roll,
13 is also a guide roll.

14, 14 are reinforcing films attached to each end of the cover films 1, 1 on the continuous tape,
It is wrapped in a suitable roll. Note that a pasting machine for pasting this reinforcing film is not shown. Further, in this figure, the reinforcing film 14 is attached only from the upper side, but depending on the type of the intended tape-shaped electric wire, the reinforcing film 14 may be attached from both the upper and lower sides.

Reference numerals 15 and 15 denote heating rolls that heat and press the continuous tape to laminate the conductor 2 and the upper and lower cover films 1 and 1 together.

Note that either the laminating operation using the hot rolls 15, 15 or the adhering operation of the reinforcing films 14, 14 using the adhering machine may be performed first.

16 is a vertical slitter, and 17 is a horizontal slitter.The vertical slitters 16 slit the continuous tape to a predetermined width and cut off the ears as necessary, while the horizontal slitters 17 slit the continuous tape to its conductor 2... Slit the exposed portion in the width direction to obtain a unit slit tape.

Note that either the vertical slitting by the vertical slitters 16 or the horizontal slitting by the horizontal slitters 17 may be performed first, and the vertical slitting is performed when the number of conductors 2 is equal to the number of conductors of the intended tape-shaped electric wire. If they are the same, they can be omitted. Furthermore, vertical slits and horizontal slits are formed on the heat rolls 15 and 1.
It can also be carried out prior to the laminating operation in step 5.

The unit slit tape obtained in this way,
That is, the target tape-shaped electric wires are collected on the conveyor belt 19 by the feed rolls 18, 18, bundled if necessary, and sent to the next process.

In the process described in detail above, the slitting operation by the slitters 8, 8 and the horizontal slitter 17 is performed by temporarily stopping the flow of the system and slitting the cover films 1, 1 or the conductor 2... from one end side to the other end side. This may be done by moving the slitter in the direction, or without stopping the flow of the system or once stopping the flow of the system and using a slitter with a width greater than the width of the cover films 1, 1 or the conductor 2... You can go.

Example 2 In Example 1 above, a vacuum suction type roller was used as the vacuum suction type conveyor 4, but the vacuum suction type conveyor 4
A vacuum conveyor belt can also be used.

FIG. 5 is a partial side view showing another example of the manufacturing process of the present invention, and FIG. 2 is a plan view thereof.

4 and 4 are a pair of vacuum suction type conveyor belts (an example of a vacuum suction type conveyor) arranged opposite to each other, and are manufactured from, for example, a pair of seamless metal endless belts. has been done. The belts 4, 4 are provided with a large number of minute holes 5, and the inside of the belts 4, 4 can be reduced in pressure by the operation of a vacuum pump (not shown). 4c... are sprockets for driving these conveyor belts 4, 4.

Reference numerals 6 and 6 denote presser rolls that press the cover films 1 and 1 supplied to the ends of the conveyor belts 4 and 4 against the belt surface, and can be switched between a pressing state and a pressing state by arms 7, 7. It is configured.

Reference numerals 8 and 8 are slitters provided close to the belt surfaces (conveying surfaces) 4a, 4a of the conveyor belts 4, 4, and are used to cut the cover films 1, 1 in the width direction intermittently. be.

The conductors 2... are sent from the supply roll 9 to the opposing surfaces 4b, 4b of the vacuum conveyor belts 4, 4, where they are sandwiched between the cover films 1, 1 from above and below.

Since the other configurations are the same as in Example 1,
The explanation will be omitted.

Function Next, the function of the present invention will be explained using the above embodiment as an example.

The cover films 1, 1 are sent from the supply rolls 3, 3 to the transport surfaces 4a, 4a of the vacuum suction type transport machines 4, 4, and then run while being attracted by the transport surfaces 4a, 4a.

The cover films 1, 1 are intermittently slit in the width direction by the slitters 8, 8 on the conveying surfaces 4a, 4a, but at the same time as this slitting operation, a brake is applied to the rolls 3, 3. , and the presser rolls 6, 6 are separated from the conveying surfaces 4a, 4a by the operation of the arms 7, 7, and are switched to the press release state. As a result, the traveling of the cover films 1, 1 on the rear side in the direction of travel after slitting is delayed, and the cover films 1, 1 on the front side in the direction of travel are delayed.
There will be a gap between. When a predetermined interval has passed, the brake is released and the presser roll 6,
6 returns to the pressed state, and the cover films 1, 1 on the rear side in the direction of travel after slitting are moved again to the conveying surface 4 at the same speed as the cover films 1, 1 on the front side in the direction of travel.
Run on a, 4a. Note that the slit prevents tension from being applied to the cover films 1, 1, but since the conveyors 4, 4 are vacuum suction type,
The cover films 1, 1 can run smoothly.

On the other hand, the plurality of conductors 2... are fed out from the supply roll 9 and are fed in a parallel running state between the opposing surfaces 4b, 4b of the vacuum suction conveyor 4, 4, where they are slit as described above. The conductors 2 are sequentially sandwiched by the covered films 1, 1, and the conductors 2 are formed into a continuous tape in which the portions sandwiched from above and below by the cover films 1, 1 and the exposed portions of the conductors 2 are arranged alternately. , 4.

Cover film 1 of the continuous tape sent out,
A reinforcing film 1 is attached to each end of 1 by a pasting machine.
4 and 14 are pasted, and then the continuous tape is heated and pressed from above and below by hot rolls 15, 15.
The conductor 2... and the upper and lower cover films 1, 1 are laminated together.

Vertical slitting machine 1 for continuous tape after lamination
The conductor 2 is slit to a predetermined width by 6, and the ears are cut off if necessary, and then the conductor 2 is slit in the width direction at the exposed portion by a horizontal slitter 17 to obtain the desired unit slit tape, that is, a tape-shaped wire. are obtained continuously.

Effects of the Invention Since the tape-shaped electric wire obtained by the present invention has either the cover film or the conductor exposed, there is no need for the troublesome peeling operation of peeling off the ends to expose the conductor as in the past. , it can be used as is to connect electronic devices.

In addition, unlike the conventional method of forming a window hole, the present invention adopts a method of skillfully shifting the cover film, so that it is possible to install ears to compensate for the strength of the film by forming a conventional window hole. , there is no need to attach reinforcing tape to the side edges to prevent deformation due to tension applied to the film, which simplifies the manufacturing process, facilitates process control, and reduces the loss of raw materials. It almost disappears.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the manufacturing process of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of the tape-shaped electric wire obtained by the process, and Fig. 4 is the A-
It is an A sectional view. FIG. 5 is a partial side view showing another example of the manufacturing process of the present invention, and FIG. 6 is a plan view thereof. 1... Cover film, 2... Conductor, 3... Supply roll, 4... Vacuum suction type conveyor (vacuum suction type roller, vacuum suction type conveyor belt), 4a...
Conveyance surface (roller surface, belt surface), 4b...opposing surface,
4c... Sprocket, 5... Hole, 6... Presser roll, 7... Arm, 8... Slitter, 9...
Supply roll, 11... Guide roll, 11... Pressure roll, 12, 13... Guide roll, 14...
... Reinforcement film, 15 ... Heat roll, 16 ... Vertical slitter, 17 ... Horizontal slitter, 18 ... Feed roll, 19 ... Conveyor belt.

Claims (1)

[Claims] 1. In manufacturing a tape-shaped electric wire in which a plurality of conductors 2 are arranged in parallel between two tape-shaped cover films 1, 1, the cover films 1, 1 are placed on the supply roll 3. ，
3, feeding the supplied cover films 1, 1 to the conveying surfaces 4a, 4a of a pair of vacuum suction type conveying machines 4, 4 arranged opposite each other, and running the supplied cover films 1, 1 while being sucked by the conveying surfaces 4a, 4a, respectively. That is, the respective cover films 1, 1 are slit in the width direction intermittently on the conveying surfaces 4a, 4a, and simultaneously with the slitting operation, the supply of the cover films 1, 1 to the conveying surfaces 4a, 4a is temporarily stopped. The vehicle is stopped or decelerated to delay the running of the cover films 1, 1 on the rear side in the running direction after slitting, and then the cover films 1, 1 on the front side in the running direction and the cover films 1, 1 on the rear side in the running direction are On the other hand, a plurality of conductors 2... are supplied between the opposing surfaces 4b, 4b of the vacuum suction type conveyor 4, 4 and run in parallel, and the conductors 2... are slit by the above. The conductor 2... is sandwiched between the cover films 1, 1, which are arranged in sequence, to form a continuous tape in which the part where the conductor 2... is sandwiched from above and below by the cover film 1, 1 and the exposed part of the conductor 2... are arranged alternately. The continuous tape is slit in the width direction at the exposed portion of the conductor 2 to obtain a unit slit tape, and the continuous tape before the slitting operation or the unit slit tape after the slitting operation is heated and pressurized to form upper and lower cover films. 1. A method for manufacturing a tape-shaped electric wire, comprising: integrally laminating 1, 1 and a conductor 2. 2. The method according to claim 1, characterized in that reinforcing films 14 are attached to the ends of the cover films 1, 1 of the continuous tape before the slitting operation or the unit slit tape after the slitting operation.