JPH0790505B2 - Automatic cutting device for adhesive tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to automatic cutting of an adhesive tape used when a tape or a printed label is automatically attached during an operation or at the end of assembly in an automatic production line. Regarding the device.

<Prior Art> In order to cut an adhesive tape such as a label or a tape into required lengths, first, the adhesive tape is adhered onto a glass plate or a plastic plate, and then this is cut with a cutter and a scale.
An operator manually cuts the material to a required length in advance, sequentially peels it off with a pair of tweezers, and affixes it to the work.

<Problems to be Solved by the Invention> However, when a large number of cut tapes are required in the above conventional example, a wide flat plate such as glass or plastic is required, and accordingly, a wide workbench and a work place are required. . Then, the cut tapes are not uniform in size, or the tapes on both ends are not large enough to cause a large loss, and when the tape peeled from the flat plate is attached to a predetermined position on the work, it is peeled off with tweezers. Since the pasted product is attached to the work as it is, there are many problems such as misalignment and inclination.

Therefore, the present invention addresses the shortcomings of the above-mentioned conventional example, allows for continuous cutting without variation in length, and changes the set value of the control circuit for the dimension and the outer dimension of the tape feed roller. It provides an automatic device with high productivity that can be changed freely.

<Means for Solving the Problem> A tape feeding roller having a large number of slits radially on its outer circumference and configured to be rotated by a predetermined rotation angle by a ratchet wheel, and a pawl feeding means for rotating the ratchet wheel. A cutter operating means for feeding the cutter in the tape direction in response to the rotation of the tape feeding roller by a predetermined angle, and means for peeling the cut tape from the outer circumference of the feeding roller at the same time when the operation of the cutter operating means is completed. .

<Operation> When the tip of the tape pulled out from the tape holder is determined to be in a predetermined position on the outer circumference of the tape feeding roller and adhered, and the cutting operation is started in a state where the required length is set in advance, first the claw feeding means. Is operated to rotate the tape feed roller by a predetermined rotation angle, and then the cutter operating means starts operating to cause the cutter attached to the cutter operating means to enter toward the slit provided on the outer circumference of the tape feeding roller. The tape is cut, and a means for peeling the tape cut piece cut off on the tape feed roller from the feed roller is operated to transfer the tape to the vicinity of the adhesive surface of the predetermined product or the suction support surface of the robot.

<Embodiment> The present invention will be described in detail below with reference to an embodiment shown in the drawings.
And a cutter operating means c and a peeling means d.

First, the tape feed roller a has a plurality of slit plates 10, 10 ... With a large number of radial slits 9, 9 ...
They are superposed on each other with a small gap therebetween, and are rotatably and pivotally mounted on a shaft 2 erected on a supporting substrate 1.

Each of the slits 9, 9, ... Of the slit plates 10, 10, ... Is aligned with the same generatrix on the circumference so as to rotate integrally, and on the back side of the feed roller a, A slit wheel 5 having a feed dog corresponding to each slit 9, 9 of the slit plate 10 is attached.

The pawl feeding means b pivotally supports the feed pawl support plate 3 on the shaft 2 of the tape feed roller a, and pivotally mounts the feed pawl 4 on the support plate 3 at a position to engage with the pawl wheel 5. Then, the outer end of the support plate 3 is connected to the piston rod end of a cylinder 8 whose one end base is pivoted on the support substrate 1 so that the cylinder 8
The swinging angle of the support plate 3 can be freely changed by controlling a fluid such as air or a liquid to be supplied to the support plate 1 to prevent the reverse rotation of the ratchet wheel 5. The feed claw support plate 3 is pivotally supported by a check claw 6 that engages with the claw 5 to prevent the claw wheel 5 from rotating in the reverse direction coaxially with the tape guide roller 7.
By swinging the tape, a predetermined rotation angle is applied to the tape feed roller a.

Next, the cutter operating means c is a cutter holder 15 fixedly installed on the support substrate 1 on a line passing through the center of the tape feed roller a.
The cutter 13 is attached to the upper part by a restraining tool 14 so as to be able to move back and forth to be freely slidable, and the cutter holding base 15 is connected to a piston rod end of a cylinder 16 fixedly mounted on the support substrate 1, When the tape feed roller a rotates by a predetermined rotation angle,
It is configured to encourage movement of the cylinder so that the cutter advances in the direction of the tape.

Furthermore, the peeling means d for the cut tape is a separation lifter 18 having a comb-teeth shape at the tip of a sliding base installed on the support substrate 1.
Is mounted on the tip of the slide mount 19 so that the slide mount 19 is inserted into the gap between the slit plates 10, 10 ... Of the tape feed roller, and the slide mount 19 is fixedly mounted on the supporting substrate 1.
By connecting to the piston rod end, the cut tape that has been stuck on the roller a consisting of the slit plate is immediately taken out when the operation of the cutter operating means (tape cutting) is completed, and the tape is obtained. I am trying to supply it to the process.

Next, a series of operations of the device having the above-mentioned configuration will be described.
First, the adhesive tape e is loaded into the tape holder 21 pivotally provided on one side of the support substrate 1, and the end portion thereof is guided by the guide roller 7
The suction arm 20 of the robot through the position between the pressure roller 11 at the tip of the support arm 12 pivotally provided on the support substrate 1 and the tape feed roller a, that is, the outer surface of the slit plate 10, and the tip position of the cutter. To the tip position of the tape or to the position where the guide roller 11 and the slit plate 10 come into contact with each other, and then the length of the tape is preset by a computer (not shown) for each purpose determined according to the type of work and product. Etc., and the automatic cutting operation is started from the time when the cutting operation is once performed by the cutter 13.

That is, as shown in FIG. 3 (a), the cutter 13 has the slit plate 1
It is assumed that the tape advances toward the slits 0, 10 ... And starts from the state in which the starting end of the tape is cut.

When the automatic cutting is started, the cutter 13 is located at a position away from the outer circumference of the slit plate 10 as shown in FIGS. 3 (b) and 3 (c). Here, the piston rod of the cylinder 8 is first moved as shown by an arrow. Since the feed claw support plate 3 swings counterclockwise by the movement and the claw wheel 5 is rotated via the feed claw 4, the tape e is attached to the outer circumference of the slit plates 10, 10 by the pressure roller 11. In this state, the tape e is pulled out from the holder 21 in order, and when the tape length reaches a predetermined length, the tape feeding operation by the cylinder 8 ends, so the cylinder 8 returns to the original position again. At this time, the check claw 6 prevents the slit plates 10, 10 ... from reversing (rotating together) due to the backward movement of the feed claw support plate 3, that is, the resistance of the feed claw 4 when it is rotated clockwise. Cylinder 8 as above
In response to the ending operation when the cylinder returns, the piston rod of the cylinder 16 advances as shown in FIG.
Is moved in the direction of the slit plate 10, so that the cutter 13 attached to the tip of the cutter holder 15 is attached across the slits 9 of the slit plates 10, 10 ... Cut the piece of tape that has been
16 retreats to return the cutter to its original position, and at the end thereof, the cylinder 17 of the peeling means d starts operating.

That is, as the piston rod of the cylinder 17 projects, the comb-teeth-shaped separation lifter 18 on the pedestal base 19 moves upward, that is, in the direction away from the inner circumference of the slit plates 10, 10 ,. The cut piece (fixed size) of the tape that has been adhered over the gap is carded by the comb-teeth-shaped separation lifter 18 that is interposed between the slit plates 10, 10 ..., transferred to the upper surface of the separation lifter 18, and immediately above it. The robot is transferred to the suction unit 20 'of the suction arm 20 of the work robot on standby, and the separation lifter 18 immediately returns to its original position by the backward movement of the cylinder 17.

As described above, the present invention can automatically and continuously promote operations such as cutting from the tape feeding operation and peeling from the slit plate.

To change the cut length of the tape, replace the tape feed roller a with one having a different outer dimension, or use a sleet plate.
By changing the number of equal divisions of 10 and the ratchet wheel 5 and changing the stroke of the cylinder 8 of the pawl feeding means, a tape piece having a required length can be easily obtained.

If a longer tape is required, the stroke of the cylinder cannot be obtained. In that case, the objective can be easily achieved by further increasing the number of strokes of the cylinder.

The stroke setting and the linking operation of each mechanism are arithmetically processed and controlled (sequence or program) by an attached micro computer (not shown).

<Effects of the Invention> The present invention, which is configured as described above, does not require a glass plate or a plastic plate having a large area as before, does not require a wide working area, and can sufficiently work even in a narrow place. it can.

And since it does not require a scale and a cutter at all, it is not economical and besides, unlike the case of artificially creating tape pieces of the required width and length beforehand, the length set in the work line Since the tape is automatically and continuously obtained, the width and length are as set in advance, there is no variation, and the required work time can be significantly shortened.

The length can be set freely and extremely easily by changing the number of equal divisions of the ratchet wheel of the slit plate and changing the stroke of the cylinder of the pawl feeding means in the control device. Available.

Further, by using the separation lifter as described above, unlike the conventional case where the cut adhesive tape is supplied to the required process by the carrier tape, the structure in the workplace can be simplified. In addition, it is possible to provide a device having many unique effects such that it can be freely installed in any place.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a front view of an essential part, FIG. 2 is a right side view of the same, which is partially cut away, FIG. 3 (a), FIG. 3 (b), FIG. 3 (c) and FIG. 3 (d). [Fig. 3] is a front view showing a series of operating states. 1 ... Support substrate, 3 ... Feed claw support plate 4 ... Feed claw, 5 ... Claw wheel 6 ... Check claw, 9 ... Slit 10 ... Slit plate, 13 ... Cutter 18 ... Separation lifter , A: Tape feeding roller b: Claw feeding means, c: Cutter operating means d: Peeling means, e: Tape

Claims (1)

[Claims] 1. A tape feed roller comprising a plurality of slit plates radially formed with slits at equal intervals and a ratchet wheel, and a pawl corresponding to the ratchet wheel for rotating the ratchet wheel by a predetermined rotation angle. Feeding means, cutter operating means for sending the cutter toward the slit when the tape feeding roller is rotated by a set angle, and peeling off the tape cut off on the feeding roller at the same time when the operation of the cutter operating means is completed. And a means for transferring it to a suction holding part such as a robot, and a tape having a predetermined length can be continuously obtained by sequentially operating each means by a program control circuit. Automatic cutting device.