JPH01190780A - Method and apparatus for continuously feeding tape - Google Patents

Abstract

PURPOSE:To feed a tape automatically and continuously for a long time, by bonding a part near the end of the first tape rewound from the first bobbin to the running second tape before completely rewinding the second tape fed from the second bobbin. CONSTITUTION:While the first tape 2 wound around the first bobbin 3 is temporarily wound around a temporary winder 17, a piece of a pressure-sensitive adhesive double coated tape is stuck to the surface of the first tape 2 on the side facing the second tape (2) with an applicator 25, and the part that precedes the stuck part is cut off with a cutter 27. That part of the first tape 2 to which the piece of the pressure-sensitive adhesive double coated tape has been stuck is bonded to the running tape (2) before the second tape (2) fed from the second bobbin (3) is completely rewound with an apparatus 26 for bonding both tapes. The second tape (2) 26 is cut at the part distant from the part of bonding toward the second bobbin (3).

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an apparatus for bonding an adhesive tape to the edge of a metal blank, for example, for manufacturing adhesive-bonded cans such as beer cans and coffee cans. The present invention relates to a method and apparatus for completely continuously feeding tape, such as adhesive tape, into a device of the present invention.

(Prior Art) A tape such as the adhesive tape 70 made of thermoplastic plastic is normally wound up and stored on a bobbin, and when it is unwound from the bobbin, it can be used in the above-mentioned adhesive tape bonding device, etc. Feed Sarel to the device. After all the first tapes of one bobbin are fed, the next tape of the other bobbin is fed, but in this case, the device is completely stopped when the next tape is about to be fed to the device. Therefore, there was a problem that production efficiency decreased.

(Problems to be Solved by the Invention) An object of the present invention is to provide a method and apparatus for continuously feeding the entire tape for a long period of time without stopping the entire device being fed.

(Means for Solving the Problems) Continuous tape feeding method of the present invention (Claim 1)
Before the unwinding of the second tape fed from the second bobbin is completed, the second tape that is running is Adhere to the tape.

In this way, since the part near the tip of the first tape is adhered to the second tape that is running, even if the second tape is unwound, the adhered first tape will not remain. is fed, and by repeating this process alternately, it is possible to continuously feed Qi f-'z for a long time.

In the continuous tape feeding method described above, adhesion of the first tape and the second tape is performed by temporarily winding the first tape and applying it to the surface of the first tape facing the second tape. After pasting the double-sided adhesive tape piece and cutting and separating the entire part of the first tape beyond the part to which the double-sided adhesive tape piece was pasted, the part of the first tape to which the double-sided adhesive tape piece was pasted. This can be done by pressing the second chip f'-f with a pair of opposing rolls and adhering it to the tape of the first tape measure 2 via the double-sided adhesive tape piece,
After the above adhesion, the second chi ff, the second
(Claim 2)
.

Since the part of the first tape to which the double-sided adhesive tape piece is pasted is pressed by the opposing roll of the second tape, the first tape and the second tape are completely bonded.
The first tape can be easily and automatically adhered to the second tape. Also, before adhesion, the part of the first tape ahead of the part to which the double-sided adhesive tape piece was adhered is cut and separated, and after adhesion, the second tape is cut at a part closer to the second bobbin than the part to which the double-sided adhesive tape piece was adhered. Therefore, the first tape and the second tape are fed overlappingly only in a small length near the adhesive part, and the first tape or the second tape is fed overlappingly only in a small length near the adhesive part. only one of the tapes is fed.

Continuous tape feeding device of the present invention (Claim 3)
is a bobbin 3 for storing the first tape 2;
a first temporary winding device 17 for temporary winding of the first team;
and a first adhesive cutter device 23, which is disposed sequentially from the first bobbin side between the first bobbin and the first temporary winding device, attaches a double-sided adhesive tape piece 47 to the first tape. A double-sided adhesive tape piece sticking device 25 for attaching the tape, a first guide roll 61, a first vacuum suction device 62 for sucking the entire first tape and sliding it along the front end surface 62c, a first A first adhesive roll 63 and a second adhesive roll facing each other and capable of approaching and separating, for pressing and adhering a portion near the tip of the tape to a second tape via the double-sided adhesive tape piece. 163 of both tape gluing devices 26, as well as a second bobbin (3) of the force of the first pre-gluing tape, a second bobbin (3) for accommodating the second tape.
a temporary winding device 117, and disposed sequentially from the second bobbin side between the second bobbin and the second temporary winding device.
After the second adhesion, the cheese cutter device 123 sticks the double-sided adhesive tape piece 47 on the second tape.
A second vacuum suction device 162 for sucking the tape and sliding it along the front end surface of the tape, and adhering a portion near the tip of the second tape to the first tape via the double-sided adhesive tape piece. a second adhesive roll 5a'2; and a pinch roll provided downstream of the temporary winding device 17, 117 for feeding the first chi f or the second chi ff switched by adhesion. It is equipped with 95.

The second chip f2 is the second tape switching unit>'<'f
5a'2 and the second temporary winding device 117 (however, it is guided by the second guide roll 161),
While being fed by the pinch rolls 95, the first chi f2 is guided by the first guide roll 61 and
The first adhesive roll 63 and the second adhesive roll 163 of both tape bonding devices 26 are temporarily wound in a temporary winding device 17 in a state where they are separated from each other. Immediately after the temporary winding, a double-sided adhesive tape piece 47 is pasted onto the first tape 2 by the double-sided adhesive tape pasting device 25 .

The first adhesive roll 63 and the second adhesive roll 163 of both tape adhesive devices 26 come close to each other, and the portion of the first chip 7''2 to which the double-sided adhesive tape piece 47 is pasted is covered with the second tape (
2), the vicinity of the front end of the pasted portion is cut by the cutter device 27, and the first tape 2 is separated from the temporary winding device 17. However, because of the first vacuum suction device 62, the first tape 2
c, the pasted part is between the first and second adhesive rolls 63, 163, and as both adhesive rolls 63, 163 approach each other, the first tape and the second The tape (2) is smoothly pressed and bonded by both adhesive rolls 63, 163 while running.

Simultaneously with adhesion, the second tape (2) is cut by the second cutter device 123 and separated from the second bobbin (3). In this way, the second tape (2) is automatically switched by the first chi f2, and thereafter the first tape 2 is fed until the bobbin 3 of the cylinder 1 is almost empty. By repeating this process alternately between the first switching unit 5a□ and the second switching unit 5a2, it is possible to continuously feed the chi ff automatically for a long time.

(Example) Figures 1 and 2 show adhesive tape attached to opposite first and second edges (not shown) of a running metal blank for manufacturing adhesive-bonded cans. 1 shows an overall view of an example of an apparatus that automatically feeds adhesive tape continuously to an apparatus for pasting adhesive tape.

Reference numeral 1 denotes a base plate that hangs down, and the base plate 1 includes a storage section 4 for a bobbin 3 on which the Qi f2 is wound, a tape switching unit 5, and a tape switching unit 5 for storing the bobbin 3 mounted on the storage section 4. Spindle 6.106,20
6,306, and a tension controller section 8 for the running tape 0.
has been installed.

Each of the bobbin storage section 4, tape switching unit 5, and tension controller section 8 has a first edge section and a second end section.
bobbin supply sections 4a and 4b of similar structure, tape switching units 5a and 5b, and tension controller 8a, each for supplying tape to the edge of the
and 8b.

The bobbin storage section 4a is equipped with 12 pins 9 arranged in four stages in a staggered manner, with three pins on each stage (the same applies to the storage section 4b).
, the bobbin 3 is transferred by the auto feeder 7, and the bobbin 3 is manually attached to the empty pin 9. Each bobbin 3 has a width of 6 mm, a thickness of 40 μm, and a length of about 20 mm.
00m of nylon chives is wound into a spool with a winding width of approximately 10cm. It takes about 20 minutes to unwind one roll.

A relatively light weight, such as a clip (not shown), which is easy to attach and remove, is attached to the lowest end of the tip 2a of the tape, and the base of the tip 2a is attached with an adhesive tape (
As shown in the top left bobbin 3 in FIG. 1 (the same applies to other bobbins 3, although not shown), It hangs down almost along a vertical plane passing through the entire axis of the bobbin 3.The height of the tip 2a relative to the base plate 1 when the bobbin 3 is inserted into the spindle 6 is the same as the height of the guide roll 24, which will be described later. It hangs down from the main part of the tape so that it almost matches the height (with respect to the base plate 1).

This is to facilitate automatic gripping of the tape 2 by the grip jaw 19 later on.

The auto feeder 7 includes a rod 10 having a gripper 11 for the bobbin 3 at its tip, a guide 13 that guides vertical movement of the rod 10, and a guide rail that guides the entire movement of the pin 9 in the axial direction of the guide 13. 12ai, and guide rails 14a and 14bi that completely guide the movement of the running frame 12 in the left-right direction in FIG. 1, and the gripping tool 11 is movable in three-dimensional directions.

The gripping tool 11 is operated by an air mechanism (not shown) to grip the peripheral edge of the top plate 3a of the bobbin 3 (FIG. 2).
It is configured as follows. A chute 15 is a chute for sending out the empty bobbin 3 for reuse.

The tape switching unit) 5a has two similar tape switching units arranged in parallel.
It consists of two units I-5a1 and 5a2.

However, the main portions 5a'1 and 5a'2 are arranged symmetrically with respect to the center line 16. Chi left unit) 5a
□ is at rest, and just before the unwinding of the tape (2) (Fig. 3) of the right side unit 5a 2 is completed, the part near the tip 2a of the tape 2 of the left unit 5a1 is
The tape is switched by being attached to the tape (2) of the right unit 5a2.

The switching unit 5a has a spindle 6, a main part 5a'□, a grip jaw 19, and is completely equipped with a hanging rodless air cylinder 18 and a 9-fold winding device 17. Although not shown, the switching unit 5a2 also includes a rodless cylinder. As shown in FIGS. 3 and 4, the main portion 5a'1 includes, from above, a guide roll 20, a pair of friction rolls 21, 22, a cutter device 23, a positioning guide roll 24, and an adhesive tape piece sticking device 25. ,
Both tape bonding devices 26, a cutter device 27, and a guide roll 82 are provided.

As shown in FIGS. 5 and 6, the spindle 6 is divided into a plurality of parts (six in the figure), and expands in the radial direction by advancing the cone-shaped core 29, and expands into an IJ shape by retreating. The spring 28 is configured to contract in the radial direction by the action of the spring 28.

That is, it contracts when the bobbin 3 is installed and removed, and expands when reversely rotated by the drive of the servo motor 33, which will be described later, to prevent slipping between the bobbin 3 and the bobbin 3. Lively. The core 29 is moved forward and backward by the piston rod 3 by an air cylinder 30 (Fig. 4).
1, via link 32. The spindle 6 is rotated by a belt 34 by a servo motor 33 (Fig. 3).
and Poo 9B5 are all carried out.

Guide roll 20, blade portion 23 of cutter device 23
a1 and the positioning guide roll 24 are shown in FIGS. 3 and 4.
As shown in the figure, the movable plate 36 is attached to an air cylinder 37 and a piston rod 38.
It is possible to slide and reciprocate along the guide plate 39 through the guide plate 39 between the positions shown by the solid line and the dashed-dotted line in FIG.

The axes of the elongated cylindrical guide roll 20 and the drum-shaped guide roll 24 having a width slightly wider than the tape width extend perpendicularly to the base plate 1. Friction rolls 21 and 22 have holes 40 in guide bodies 40 and 41 having top surfaces 40a and 41a f inclined with respect to base plate 1, respectively, as shown in FIG.
b and 41 b so that the axis thereof is parallel to the base plate 1. The friction rolls 21.22 and the guide bodies 40.41 are attached to a support 42 (FIG. 3), which is fixed to the base plate 1. During the feeding operation, the tape 2 is moved from the bobbin 3 to the base plate. It is fed out from an unspecified position in the height direction of the cross-bin 3 at right angles to it, and after contacting the guide roll 20, it is twisted 90 degrees and the friction roll 21.2
2i, and then twisted back by 90 degrees and passes through the positioning guide roll 24. The chi f2 is provided with flanges 24a and 24b in the height direction (to prevent the base plate from coming off) by the friction rolls 21 and 22, but the tape 2 is stably positioned on the guide roll as described above. 24, the sides of the tape 2 are prevented from being deformed or damaged.The sloped top surfaces 40a, 41
A serves to automatically twist the tape 2 by 90 degrees and insert it between the friction rolls 21 and 22 when the moving plate 36 is moved, which will be described later.

23b is a rubber band, which constitutes a cutter device 23 together with the blade portion 23a, and works in cooperation with the blade portion 23a to cut the tape 2 after the tape (2) is adhered to the tape 2. There is. 7 Bar) 9 Sodo 23
b is attached to the tip of a piston rod 43a of an air cylinder 43 fixed to the splate 1.

The adhesive tape piece sticking device 25 is equipped with a freely rotating adhesive tape piece holding roll 44 and a pressing rubber roll. The holding roll 44 is fixed to the tip of a support 85 that is supported by the horizontal shaft 52 by a middle rod 86 and a nano 87. 88 is a spring pin for preventing the rod 86 from being pulled out, and 89 is a spring pin for positioning the holding roll 44 in the circumferential direction. A weight 51 is attached to the support body 85, and the weight 51 is normally located at the lowest end in the circumferential direction.

When the suppression roll 45 is pressed against the holding roll 44 as described later in a state where the weight 51 is located at the lowest end, the tape 2 initially comes into contact with the peripheral surface 44 of the holding roll 44.
Generally, about 1
As shown in FIGS. 8 and 9, a large number of double-sided adhesive tape pieces 47 (width approximately equal to the width of the tape 2 ) is the leftmost adhesive tape piece 4 at a constant interval d in the axial direction.
7 is located at the same height as the chi f2 with respect to the base plate 1.
It is attached with both ends held down by a p 48 b. For installation, near the right end of the rod 48 av 48b, there is a concave groove (
As shown in FIG.
b□ (48b1 is not shown in the figure.It is attached to the rod 48a.

The right side of 48b is O that passes through the circumferential groove 44b and the above-mentioned groove.
Due to the ring 49, the left side has a sloped surface 48a1t48
A screw 91 is inserted through a wedge-shaped body 90 having a surface that engages with b□.
The holding roll 4.4K is secured by. Therefore, after all the double-sided adhesive tape pieces 47 have been adhered to the tape 2, remove the remaining release paper 46 and add a new double-sided adhesive tape piece 47 (peel and install by removing and attaching the rods 48 a t and 48 b. Since this is mainly done by attaching and detaching only the O-ring 49, the above-mentioned work can be carried out in a short time.

As shown in FIG. 9, the adhesive tape piece 47 is attached by making cuts 50 at both ends near the rod 48 using a knife or the like to reach the upper surface of the release paper 46, and as described later, the adhesive tape piece 47 is attached to the pressure roll 45. is pressed against the holding roll 44, and when the portion 47a of the adhesive tape piece 47 between the cuts 50 comes into contact with the tape 2, the portion 47a easily separates from the release paper 46 and is attached to the tape 2.

The horizontal shaft 52 is a support 5 fixed to the base plate 1.
It is attached to the rod 54 of No. 3 through the entire sliding body 55.

And each time the adhesive tape piece 47 is pasted on the tape 2,
A drive mechanism (not shown) is configured as shown in FIG. A reflective optical sensor 92 for detecting the adhesive tape piece 47 is disposed above the holding roll 44 at the same height as the tape 2 with respect to the base plate 1 . If the adhesive tape piece 47 is not detected by the sensor 92, the drive mechanism operates based on the output signal of the sensor 92 so that the holding roll 44 moves to the left until the adhesive tape piece 47 is detected.

The pressing rubber roll 45 is attached to a movable plate 56, and the movable plate 56 is guided between the positions shown by the solid line and the dashed-dotted line in FIG. 3 by a piston rod 57a operated by an air cylinder 57. It is configured to be able to slide along the plate 58 and reciprocate. Note that a guide roll 59 is installed on the movable platen 56.

The movable platen 60 includes, from above, a guide roll 61, a vacuum suction device 62, a double tape adhesive roll 63, and a cutter device 27.
Rapano 9 throat 27b all 1 driving air cylinder 2
7c1 and the guide roll 64 are installed, and the movable plate 60 is attached to the piston rod 66a of the air cylinder 66 (
(Fig. 4), the guide plate 65 (see Fig. 4; has been done.

The vacuum suction device 62 consists of a large number of vacuum suction holes 62a having an opening on the right end side of the movable plate 60, and has a vacuum chamber 62bk.
It is connected to a vacuum pump (not shown) through the front end surface 6.
2C so that the tape 2 slides along the front end surface 62CVC.

Both tape adhesive rolls 63 are pivotally supported by a support 67b fixed to a piston rod 67a of an air cylinder 67, and are configured to be able to move forward and backward. The adhesive roll 63 cooperates with both opposing tape adhesive rolls 163 of similar structure in the tape switching unit 5a2 to transfer the portion of the tape 2 to which the adhesive tape piece 47 is pasted to the tape switching unit 5a2 while it is running. Press against Qi f (2) and tape 2 and tape (2)? Glue. Transmission type optical sensors 68a and 69a are installed on the movable platen 60 above and below the adhesive roll 63. Sensors 68a and 69a (
The light sensors 68b and 69b (each of which cooperates with, for example, a light receiving element) provided above and below the adhesive roll 163, respectively,
8a and 68b, and between sensors 69a and 69. The passage of the adhesive tape piece 47 between the sections b is detected. Note that sensor 6
The distance between 8a and 69a can be adjusted by bending. The same applies to the distance between the sensors 68b and 69b. The cutter device 27 has the same structure as the cutter device 23, with 27a being a blade portion and 27b being a rubber pad.

As shown in FIGS. 11 and 12, the temporary winding device 17 includes a winding tool 71 that is pivotally supported on a support 70 fixed to the base plate 1, and a shaft 71a of the winding tool 71 that is pivotally supported. An extrusion tool 73 for pushing out and removing the entire wound chie 7"2" from the winding tool 71, which has an engaging tool 72 for the chi f2 to be rolled up, and a shaft 73ai that passes through the shaft 72a of the engaging tool 72. Fully equipped.

The winding tool 71 has three winding blades 71b1.

7] b2 and 71b3, and engagement tool receiver 71c'
The winding frame 71bi has a winding frame 71bi. The engagement tool 72 includes an engagement rod 72bffi, and a boo '772e is attached to the end of the shaft 72a opposite to the engagement rod 72b. A rubber pad 72b1 is attached to one side (on the swinging direction side) of the engagement rod 72b.
(not shown), the engagement tool 72 is normally held in contact with the end surface of the shaft 72a of the engagement tool 72. Reference numeral 75 is a brake seam, in which the goreif 2C rotates and the engagement rod 72
b swings in the direction of the arrow in FIG.
Adhesive rod 71b' installed on the radially inner side of 1b2
The winding tool 7
1 to prevent its rotation, and after the contact, the winding tool 71 separates from the winding tool 71 and rotates based on a signal from a sensor (not shown).

The temporary winding device 17 operates as follows. The rodless cylinder 18 is pulled down by the grip noyo 19,
As shown in FIG. 11, the tape 2 is connected to the winding rod 71b.
1 and 71b2 and descends, the motor (not shown) is immediately driven, the belt (not shown) is fully valved, and the pulley 72c starts rotating.At this point, the brake seat 75 is working, so Only the engagement rod 72b swings in the direction of the arrow and comes into contact with the tape 2.
, and the tape 2' is moved between the engaging rod 72b and the adhesive rod 71b'2, as shown in the state shown at 2'.
hold it in place. Immediately thereafter, the brake seam 75 is released, and the winding tool 71, holding the tape 2', rotates in the direction of the arrow, and as shown in 2, the winding tool 71 rotates in the direction of the arrow. Wind along. After that, as described later, the cuckoo device 27 operates,
The tape 2 is cut near the upstream side of the temporary winding device 17, and the rotation of the winding tool 71 is also stopped. Then Boo'J
72 c f When reversely rotated, the /”y door 2b□ will slightly touch the engagement tool receptacle 71.

During this time, the air cylinder (not shown) operates, and the pushing tool 73 moves to the right in FIG. 12 to push out the wound tape 2'' from the winding tool 71 and remove it.

Note that 76 is a central guide roll.

As shown in FIGS. 1 and 2, the tension controller section 8 (for example, 8b) includes a shaft 77, a movable body 78 that slides along the shaft 77, guide rolls 79a and 79b attached to the movable body 78, and 79C1 and fixed position guide roll 80a.

Equipped with sob, soc, 80, and d.

A light shielding plate (not shown) is attached to the movable body 78, and when the light shielding plate reaches a height level outside a predetermined range, the servo motor 33 increases based on a signal from a photoelectric sensor (not shown). The movable body 78 returns to a predetermined height level range by speeding up or decelerating, so that the tape 2 is maintained within a certain range.

From the bobbin (3) on the tape switching unit 5a2 side inserted into the spindle 106, the central guide o −/l
/ 76 Describes the operation of switching the entire tape by gluing the tape fed through the Oj D tension controller 8ai (the tape switching unit 5a inserted into the spindle 6 and the Qi 702 fed from the side bobbin 3). All operations of each component are automatically performed by sensors (including those not shown) and commands from a microcomputer (not shown) based on a written timing program.

The tape (2) is pulled onto the spindle 106 as shown in FIG. From the attached bobbin (3), a guide roll 120 corresponding to the guide roll 20,
Friction rolls 121 and 122 corresponding to friction rolls 21 and 22, respectively, and guide roll 124 corresponding to guide rolls 24 and 61, respectively.
161 and the central guide roll 76.

Running the tape (2) on the bobbin (3)
The new bobbin 3 is removed from the spindle 6 and sent out from the chute 15, and the new bobbin 3 is transferred from the bobbin storage section 4a to the spindle 6 in the contracted state by the auto feeder 7.
As shown in FIG. 1, the tip portion 2a is set in a hanging state, and the spindle 6 immediately expands. At this point, movable plates 36 and 60 are in the positions shown by the dash-dotted lines, while movable plate 56 is in the position shown by the solid lines.

The grip jaw 19 (FIG. 2) of the rodless cylinder 18 grasps the hanging end 2a of the tape 2 of the bobbin 3 and pulls it down to the level of the flap guide plate 58, as shown in FIG. 3. Immediately. Air cylinder 37 operates,
The movable platen 36 moves to the position indicated by the solid line, and at that time, the guide roller 20.f2 moves as shown in the figure. It engages the friction rolls 21, 22 and the guide rolls 24.

When the grip jaw 19 is immediately lowered to below the temporary winding device 17, the tape 2 reaches the position shown in FIG. is opened, and at the same time, the lower part of the tape begins to be wound up by the winding tool 71. At the same time, the air cylinder 57 operates and when the movable platen 56 reaches the position indicated by the dashed line, the tape 2 is pressed by the pressure roll 45 against the peripheral surface portion of the adhesive tape piece holding roll 44 where the adhesive tape piece 47 is not present. (See Figure 9). Since the wheel f2 is lowered by the winding wheel, the holding roll 4
4 is driven by the tape 2 and rotates in the direction of the arrow (see FIGS. 3 and 9; counterclockwise direction in the case of the holding roll 44) together with the pressure roll 45. Immediately after rotation, the tape 2 is rotated on the right side of the tape 2. The double-sided adhesive tape piece 47 is adhered. Immediately, the movable plate 56 returns to its original position. At the same time as the movable plate 56, the grouping plate 60 also moves to the position shown by the solid line, and the tape 2 is attached to both tape adhesive rolls 63, Guide rolls 64 and 82
engage with.

At the moment when the rear end of the part of the tape 2 to which the adhesive tape piece 47 is attached completely passes in front of the optical sensor 69a, the canter device 27 is activated based on the signal from the optical sensor 69b (if the optical sensor 69b is a light receiving element). As a result, the tape 2 is cut near the front end of the pasted portion and separated from the temporary winding device 17.

Immediately, the motor 33 rotates in reverse and begins to pull back the tape 2. At this time, the tape 2 is suctioned by the @ end face 62c of the vacuum suction device 62, so that it is prevented from coming off the guide roll 61.

At the moment when the rear end of the portion of the chip f2 to which the adhesive tape piece 47 is adhered passes in front of the optical sensor 68a, the entire servo motor 33 is activated based on the signal from the optical sensor 68b (if the optical sensor 68b is a light receiving element). make it stop. Just before the tape (2) on the bobbin (3) finishes rewinding (
This point is detected based on the number of revolutions of the servo motor 330 and the cumulative number of revolutions of a guide roller (not shown) provided downstream of the tension controller 8a (proportional to the traveling distance of the tape), and the air cylinder 67 is activated. Then, both tape adhesive rolls 63 move forward, and the tape 2
The part to which the adhesive tape piece 47 is adhered is pressed against the roll 163 to adhere the tape 2 to the tape (2). Furthermore, the servo motor 33 rotates forward (tape 2
(rotation in the unwinding direction) and at the same time the cutter device 23
The cutter device 123 corresponding to the tape (2
) Completely cut and separate the tape (2) from the entire bobbin (3). After the tape switching is performed as described above, the chi f2 passes through the central guide roll 76, the tension control roll 8as and the pinch roll 95, and is attached to the tape adhesion mechanism (not shown) to the first edge of the metal blank. ).

After completing the tape switching from the bobbin (3) side to the bobbin 3 side as described above, the tape on the bobbin (3) on the spindle 106 is operated in the same manner as described above before the tape 2 on the bobbin 3 runs out. (2) is glued to the running chip f2, the tape is switched, and by repeating this process alternately, the tape is fully automatically fed to the adhesive tape bonding device continuously for a long time. be able to.

Note that the tape 2 and the tape (2) may be bonded by appropriate means such as ultrasonic bonding.

(Effects of the Invention) According to the present invention, it is possible to automatically feed the tape continuously for a long time without stopping the entire device to which the tape is fed.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view of a device including the device of the present invention shown in FIG. 3, FIG. 2 is a side view of the device of FIG. 1 as seen from the left side of FIG. 1, and FIG. 4 is a side view of the device shown in FIG. 3 as seen from the left side of FIG. 3, and FIG. 5 is a front view of the main part for detailed explanation of the device shown in FIG. 6 is a front view of the spindle device of FIG. 5, FIG. 7 is a perspective view of the guide body and friction roll for tape positioning in the device of FIG. 3, and FIG. 8 is a longitudinal sectional view along the axis. FIG. 3 is a partially cutaway side view of the double-sided adhesive tape piece holding roll of the double-sided adhesive tape piece sticking device in the apparatus shown in FIG. A cross-sectional view along the line X-X in Figure 8,
Figure 11 is a front view of the temporary winding device in Figure 3;
FIG. 2 is a longitudinal sectional view taken along the line ■-■ in FIG. 11. 2...First tape, (2)...Second tape, 3
...first bobbin, (3) ...second bobbin, 17
...Temporary winding device, 23...Cutter device, 25.
...Double-sided adhesive tape piece sticking device, 26...Double-sided tape bonding device, 27...Cutter device, 47...Double-sided adhesive tape piece.

Claims (3)

[Claims] (1) Before the unwinding of the second tape fed from the second bobbin is completed, the part near the tip of the first tape unwound from the first bobbin is 2. A method for continuously feeding a tape, characterized in that the tape is bonded to the second tape. (2) While temporarily winding the first tape, attach a piece of double-sided adhesive tape to the side of the first tape that faces the second tape, so that the piece of double-sided adhesive tape of the first tape After cutting and separating the part ahead of the pasted part, the part of the first tape to which the double-sided adhesive tape piece was pasted and the second tape are pressed with a pair of opposing rolls to remove the double-sided adhesive tape. Claim 1, characterized in that the first tape is adhered to the second tape via an adhesive tape piece, and then the second tape is cut at a part closer to the second bobbin than the adhered part.
Continuous feeding method of tape as described. (3) A first bobbin (3) for storing the first tape (2), a first temporary winding device (17) for temporarily winding the first tape, and a first bobbin and a first winding device (17) for temporarily winding the first tape. A double-sided adhesive tape piece (47) is attached to the first tape cutter device (23) after adhesion, which is sequentially arranged from the first bobbin side between the first temporary winding devices. a double-sided adhesive tape piece sticking device (25), a first guide roll (61),
a first vacuum suction device (62) for sucking the first tape and sliding it along its front end surface (62c); and a double-sided bonding of a portion near the tip of the first tape to the second tape; A double tape bonding device (163) having a first adhesive roll (63) and a second adhesive roll (163) facing each other, approaching each other and moving away from each other, for pressing and adhering tape pieces together;
a first tape switching unit main part (5a'_1) having a first adhesive roll (63) of 26) and a first pre-adhesion tape cutter device (27);
2)) for storing the second bobbin ((3)), the second
A second temporary winding device (117) for temporarily winding the tape of
and a second adhesive tape cutter device (123) disposed between the second bobbin and the second temporary winding device sequentially from the second bobbin side, and a double-sided adhesive tape piece for the second tape. (47); a second guide roll (161); a second guide roll (161); a vacuum suction device (162), a second adhesive roll (163) for adhering a portion near the tip of the second tape to the first tape via the double-sided adhesive tape piece, and a second pre-adhesion device. A second tape switching unit main part (5a'_2) having a tape cutter device (127); and a temporary winding device (17) for feeding the first tape or the second tape switched by adhesive. , 117)
A continuous tape feeding device characterized in that it comprises a pinch roll (95) provided downstream of the tape.