JPH07172681A - Taping device - Google Patents

Abstract

PURPOSE:To make respective width center positions of both tapes accurately coincide with each other when a conductive foil tape having a prescribed length is intermittently laminated on an insulating tape by devising a means such as arranging a guide device and a supply device of the conductive foil tape on the upper side of a press fitting roller device. CONSTITUTION:When an air chuck 42 of a conductive foil tape supply device 41 is approached to a conductive foil tape guide device 31 by driving a driving device 44, a guide member 43 rushes into a guide groove 43, and the idle end 3a of a conductive foil tape 3 is situated above an insulating tape 2 and under an upper side laminating roller 15. Then, the upper side laminating roller 15 is approached to a heat rubber roller 12 by driving a cylinder device 17, and the idle end 3a of the conductive foil tape 3 is thermally welded to the insulating tape 2. On the other hand, the guide member 43 is slightly retreated, and is once stopped by driving the driving device 44 in the inverse direction. Afterward, the heat rubber roller 12 is rotated by driving a driving motor 13, and the conductive foil tape 3 is laminated on the insulating tape 2, and a laminate tape 1 is manufactured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape laminating apparatus for obtaining a laminating tape used as a material for manufacturing electronic parts such as a foil wound capacitor or a coil material such as an electrostatic filter. .

[0002]

2. Description of the Related Art Conventionally, as a device for sticking two tapes to each other, for example, an insulating tape and a conductive foil tape respectively fed from a supply reel device are laminated in a good tape guide member so that their width centers are aligned. After that, the tapes are thermocompressed to each other by the pressure roll device, and the laminating tape pulled out from the pressure roll device is guided by the lower tape guide member and then wound by the take-up reel device. A matching device is provided.

[0003]

According to the above-mentioned conventional device, a bonding tape can be obtained in which the insulating tape and the conductive foil tape are continuously bonded over the entire length in the longitudinal direction. It is not possible to obtain a laminated tape in which conductive foil tapes having a predetermined length are intermittently bonded at predetermined intervals. Even if a conductive foil tape of a specified length can be supplied to the insulating tape, it is possible when the specified length is short (for example, about 50 mm), and if the length exceeds that, the width center of both tapes It becomes impossible because the accuracy of positioning is lowered.

An object of the present invention is to obtain a bonding tape obtained by intermittently bonding a conductive foil tape having a predetermined length to an insulating tape and accurately obtaining the width center positions of both tapes. The point is to provide a laminating device.

[0005]

In order to achieve the above object, the tape laminating apparatus of the present invention is an electrically conductive foil tape having a tape width narrower than the insulating tape width on an insulating tape whose surface is coated with a heat-welding agent. A tape laminating device for laminating tapes to obtain a laminating tape, which is provided with a crimping roll device having a laminating roll that can be freely moved toward and away from a heat rubber roll. Provide a foil tape guide device and a conductive foil tape supply device,
The conductive foil tape supply device includes a chuck device that can be moved closer to and away from the conductive foil tape guide device, and a guide member that is connected to the conductive foil tape guide device side from the chuck device. By moving the guide member closer to the guide device, the guide member enters the conductive foil tape guide device so that its tip is located near the working portion of the crimping roll device. A foil tape cutting device is provided.

[0006]

According to the structure of the present invention, when the chuck device moves away from the conductive foil tape guide device and grips the conductive foil tape, the conductive foil tape can be positioned in the guide member and its play can be prevented. The end may project a length from the guide member. By moving the chuck device closer to the conductive foil tape guide device in this state, the guide member can be thrust into the conductive foil tape guide device and its free end can be located near the working portion of the pressure roll device. At the same time, the free end of the conductive foil tape can be located below the laminating roll.

Next, the laminating roll is moved closer to the heat rubber roll, and the free end is pressed against the insulating tape, so that the heat is applied to the heat rubber roll so that the free end can be attached to the insulating tape. Then, the chuck device that has been moved open is moved away from the conductive foil tape guide device so that the tip of the guide member is slightly retracted with respect to the cutting device, and then temporarily stopped.

In this state, by rotating the heat rubber roll, the laminated tape can be manufactured while the conductive foil tape is stuck to the insulating tape. By stopping the rotation of the heat rubber roll after manufacturing a certain length, the cutting device can cut the conductive foil tape to a predetermined length and at the same time form a new free end. Then, the chuck device can be returned to the home position by gripping the conductive foil tape and then again moving away from the conductive foil tape guide device.

Further, by rotating the heat rubber roll again, the remaining portion of the conductive foil tape can be attached to the insulating tape, a predetermined space can be secured between the conductive foil tapes, and the rotation of the heat rubber roll can be stopped. Then, one cycle is finished. While the conductive foil tape is attached to the insulating tape, the conductive foil tape is guided in the width direction by the guide member or the conductive foil tape guide device, so that the accuracy in the width direction can be guaranteed.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. The tape laminating apparatus in this embodiment is for producing a laminated tape used as a material (or a coil material such as an electrostatic air filter) for electronic parts such as a foil wound capacitor, that is, a laminating tape. As shown in FIG. 5, for example, the laminating tape 1 is narrower than the insulating tape width 2W in the narrow (for example, 5 mm or less) insulating tape 2 whose surface is coated with a thermal adhesive as an adhesive. A conductive foil tape 3 (for example, a tape made of aluminum foil, copper foil, etc.) 3 having a width of 3 W is thermocompression-bonded to each other, and the tapes 1 and 3 are bonded to each other so that the width centers thereof are aligned with each other. At that time, the conductive foil tape 3 has a predetermined length (for example, a length exceeding about 100 mm) L, and is intermittently stuck at a predetermined interval M.

A tape laminating apparatus 10 for manufacturing such a laminating tape 1 will be described below. 4, an insulating tape tension setting device 5 for setting the tension of the insulating tape 2 from an insulating tape supply reel device (not shown) and a conductive foil tape supply reel device are provided in front of the tape laminating device 10. Conductive foil tape 3 from (not shown)
And a conductive foil tape tension setting device 6 for setting the tension of the. These tension setting devices 5 and 6 are configured by guide rolls, weight members and the like. Further, in the subsequent stage of the tape laminating device 10, a laminating tape tension setting device for setting the tension of the laminating tape 1, a take-up reel device for winding the laminating tape 1 (neither is shown), and the like are arranged. It is set up.

1 to 3, the tape laminating apparatus 10 is roughly divided into a pressure bonding roll device 11, a conductive foil tape 3 cutting device 21, and a conductive foil tape guide device 31.
And a conductive foil tape supply device 41.

The pressure-bonding roll device 11 has a large diameter heat rubber roll 12. The heat rubber roll 12 is configured to rotate in one direction by a drive motor 13 and to be rotatable and stopped by the heat rubber roll 12. An encoder (an example of a feed amount detection device) 14 that detects the amount is provided. Further, an upper laminating roll 15 and a lower laminating roll 16 are disposed so as to face the heat rubber roll 11 from above, and these laminating rolls 15 and 16 are provided with respect to the heat rubber roll 12 by cylinder devices 17 and 18, respectively. Each can be approached and separated freely.

The insulating tape 2 having passed through the insulating tape tension setting device 5 is supplied to the outer peripheral surface of the heat rubber roll 12 from below, and the conductive tape tension setting device is applied to the insulating tape 2 on the heat rubber roll 12. The conductive foil tape 3 having passed through 6 is supplied from the horizontal direction.

The conductive foil tape guide device 31 is arranged at a position near the heat rubber roll 12 in a path for supplying the conductive foil tape 3 from the horizontal direction. The conductive foil tape guide device 31 has a body having a U-shaped vertical section as a main body, and thus, open guide grooves 32 are formed above and in the front and rear. The leading end portion of this conductive foil tape guide device 31 is formed with an upward recessed portion 33 that is open downward and on both sides, and the leading end portion that does not have a bottom plate is the working portion of the above-mentioned laminating roll 15. It is located near.

The cutting device 21 is arranged so as to face the recess 33 from below. The cutting device 21 is composed of an upward cylinder device 22 and a cutting tool 23 that is moved up and down by the cylinder device 22, and the cutting tool 23 that has moved upward rushes into the recess 33 to cut the conductive foil tape 3. It is configured accordingly.

The conductive foil tape supply device 41 disposed above the conductive foil tape guide device 31 includes an air chuck (an example of a chuck device) 42 arranged horizontally and a lower end of the air chuck 42. From conductive foil tape guide device 31
A gutter (an example of a guide member) 43 that is continuously provided on the side, and a drive device 44 that moves the air chuck 42 toward and away from the conductive foil tape guide device 31. The trough 43 has a U-shaped vertical cross section, and is formed with a guide groove 45 which is open at the upper side and the front rear side.

At this time, the inner width 45W of the guide groove 45 is formed slightly larger than the conductive foil tape width 3W so that the conductive foil tape 3 can be guided without being displaced in the width direction. Further, the gutter 43 is located outside the conductive foil tape guide device 31 when it is moved away from the air chuck 42, and is projected into the guide groove 32 of the conductive foil tape guide device 31 when moved close to the air chuck 42. Then, the free end thereof is located in the vicinity of the working portion of the good laminating roll 15.

The operation of the above structure will be described below. As shown in FIG. 1, when the air chuck 42 of the conductive foil tape supply device 41 is moved away from the conductive foil tape guide device 31, the air chuck 42 grips the conductive foil tape 3 by the chuck movement. The gripped conductive foil tape 3 is located in the guide groove 45 of the gutter 43, and the free end 3A thereof projects from the gutter 43 by a certain length. Further, the good laminating roll 15 moves away from the heat rubber roll 12, and the cutting tool 23 of the cutting device 21 moves down.

In this state, the drive device 44 is operated to move the air chuck 42 closer to the conductive foil tape guide device 31. Then, as shown in the solid line in FIG. 2 and in FIG.
Of the conductive foil tape guide device 31 protrudes into the guide groove 32 of the conductive foil tape guide device 31, the free end of the conductive foil tape guide device 31 is located near the operating portion of the upper laminating roll 15 and the free end 3A of the conductive foil tape 3
Is positioned above the insulating tape 2 and below the good laminating roll 15.

Then, the cylinder device 17 is actuated to move the upper laminating roll 15 closer to the heat rubber roll 12 as shown by the phantom line in FIG. 2, and the free end 3A is pressed against the insulating tape 2, whereby the heat rubber roll 12 is pressed. The heat is applied to the insulating tape 2 and the free end 3A is attached to the insulating tape 2.

After the air chuck 42 is opened, the driving device 44 is reversely operated to move the air chuck 42 away from the conductive foil tape guide device 31. As shown by the phantom line B in FIG. 2, this separating movement causes the tip of the gutter 43 to have a recess.
It is temporarily stopped at a position slightly retracted from 33.

In this state, the heat rubber roll 12 is rotated by the drive motor 13 so that the laminating tape 1 can be manufactured while the conductive foil tape 3 is attached to the insulating tape 2. Then, when the encoder 14 reads a certain first set length, the rotation of the heat rubber roll 12 is stopped. Then, by operating the cylinder device 22 in the cutting device 21, the cutting tool 23 is raised as shown by the phantom line B in FIG. 2 to cut the conductive foil tape 3 to a predetermined length L and at the same time to open a new free end 3A. Form.

Then, the air chuck 42 grips the conductive foil tape 3 by the chuck movement and is then moved away from the conductive foil tape guide device 31 again to return to the home position as shown in FIG. Is moved down.
Further, the heat rubber roll 12 is rotated again, and the remaining portion of the conductive foil tape 3 is attached to the insulating tape 2.
Then, the rotation of the heat rubber roll 12 is stopped by the encoder 14 reading a certain second set length, so that the predetermined interval M between the conductive foil tapes 3 is secured. After that, the good laminating roll 15 moves away from the heat rubber roll 12 to complete one cycle.

Incidentally, while the conductive foil tape 3 is attached to the insulating tape 2, the conductive foil tape 3 is guided in the width direction by the gutter 43 and the guide grooves 45, 32 of the conductive foil tape guide device 31. Accuracy in the width direction is guaranteed. Further, since the conductive foil tape 3 reaches a predetermined length L and is cut, the end on the opposite side (front side in the flow direction of the conductive foil tape 3) which is pressed by the hand laminating roll 15 is set by the tension setting device. Because tension is acting, there is no occurrence of slack,
Accuracy is satisfied.

[0026]

According to the present invention having the above-described structure, a bonding tape obtained by intermittently bonding a conductive foil tape having a predetermined length to an insulating tape is used even if the predetermined length is long.
It is possible to accurately obtain the width center positions of both tapes.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention before bonding in a tape bonding device.

FIG. 2 is a side view of the tape laminating apparatus at the time of laminating.

FIG. 3 is a sectional view taken along line XX in FIG.

FIG. 4 is a schematic configuration diagram of the same.

FIG. 5 is a perspective view of the bonding tape.

[Explanation of symbols]

 1 Laminating tape 2 Insulating tape 2W Insulating tape width 3 Conductive foil tape 3A Free end 3W Conductive foil tape width 10 Tape laminating device 11 Crimping roll device 12 Heat rubber roll 14 Encoder (feed amount detecting device) 15 Good laminating roll 21 Cutting device 23 Cutting tool 31 Conductive foil tape guide device 32 Guide groove 41 Conductive foil tape supply device 42 Air chuck (chuck device) 43 Gutter (guide member) 45 Guide groove 45W Guide groove inner width L Specified length M Specified interval

Claims (1)

[Claims] 1. A tape bonding device for bonding a conductive foil tape having a tape width narrower than the insulating tape width to an insulating tape having a surface coated with a heat-welding agent to obtain a bonding tape. Provided is a pressure bonding roll device having a laminating roll that can be moved toward and away from a heat rubber roll, and a conductive foil tape guide device and a conductive foil tape supply device are provided above this pressure bonding roll device. Consists of a chuck device that can be moved toward and away from the conductive foil tape guide device, and a guide member that is connected to the conductive foil tape guide device side from the chuck device. By doing so, the guide member enters the conductive foil tape guide device so that its tip is located near the working part of the pressure bonding roll device. A tape adhering device comprising a conductive foil tape cutting device facing the conductive foil tape guide device.