JPH0671970B2 - Automatic cutting and pasting device for double-sided tape - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device for automatically cutting and attaching double-sided tape.

[Prior Art] Conventionally, a double-sided tape may be used for attaching a dial of a watch to a dial receiver, for example. In this case, the double-sided tape is cut into a predetermined length in advance, the adhesive layer of the cut double-sided tape is attached to the dial plate receiving object, the release paper is peeled off, and the dial plate is bonded. In this way, it is manually cut and attached.

[Problems to be solved] As described above, it is extremely complicated to manually cut and attach the double-sided tape, and it takes skill and time to attach the double-sided tape to the object to be attached in an accurate relative positional relationship. However, it was inefficient and not suitable for automation.

Therefore, an object of the present invention is to provide an automatic cutting and sticking device for double-sided tape, which is capable of automating cutting and sticking work and efficiently and sticking in an accurate relative positional relationship.

[Means for Solving the Problems] A feature of the present invention is that a base (21) and an adhesive layer cutting device (4) are provided.
And a sticking device (7) and a clamp device (8). The base (21) can be moved up and down by a moving plate (33), and a holding roll is provided on the base. (22), a guide means (23), a winding roll (24) and a guide plate (23b) are arranged. The holding roll (22) has an adhesive layer on one surface of the release paper (1a). (1b) is a rotatable one that holds the roll body (11) of the double-sided tape (1) that is releasably attached, and the guide means (23) sets the release paper (1a) to a predetermined position. The guide means (23d, 23f) on the downstream side of the sticking device (7) is movable along the path, and the release paper (1a) can be displaced by the spring force of the biasing springs (23i, 23j). The winding roll (24) winds the release paper (1a) that has passed through the guide means (23). The guide plate (23b) is provided on the lower surface of the base (21), the adhesive layer cutting device (4) is attached to the base (21) at a predetermined position in the path, and the release paper Only the adhesive layer (1b) on (1a) is cut into a predetermined length, and the adhesive layer cutting device (4) includes a fixed plate (41), a rocking plate (42), and a sliding body. (47), cutter mounting board (48),
It is composed of a cutter (50) and a tape receiver (51), the fixed plate (41) is fixed to the base (21), and the swing plate (42) is fixed to the fixed plate (41). The sliding member (47) is swingably supported on the disc (41) and is reciprocally swung by a drive means (43) attached to the fixed disc. Is slidably supported on the cutter, and is reciprocally moved by the drive means (43) attached to the swing plate. The cutter (50) is attached to the cutter attachment plate (48). Only the adhesive layer (1b) on the release paper (1a) is reciprocated by performing a closed-loop reciprocating motion in which the oscillating motion of the oscillating plate (42) and the sliding motion of the sliding body (47) are combined. The aforesaid sticking device (7) is fixed at a position downstream of the adhesive layer cutting device (4). It is attached to the base (21) so as to face the pasting target (6) arranged at the position, and is moved forward with respect to the base in the direction orthogonal to the surface on the release paper (1a) side. Push pad (7
1) and a guide plate (23c), the pressure pad (71) and the guide plate (23c) move forward, and the pressure-sensitive adhesive layer is cut together with the release plate (1a) together with the guide plate (23b). (1b) is pressed against the pasting target, and the pressure pad is retracted to stick only the cut adhesive layer to the pasting target, and the clamp layer (8) is the sticking device ( 7) is provided between the adhesive layer cutting device (4) and the double-sided tape (1) is clamped when the pressing pad (71) and the guide plate (23c) advance. Where it is.

Preferably, the cutter mounting board (48) is provided so that its position can be adjusted with respect to the sliding body (47).

More preferably, the tape receiver (51) is fixedly installed at a position through which the double-sided tape (1) can pass and faces the cutter (50), and is decompressed by decompression means. An air hole (51b) for adsorbing and holding the release paper (1a) from the back side is formed.

[Embodiment] An embodiment of the double-sided tape automatic cutting / pasting apparatus of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 7, according to the present invention, a carrier device 2 for carrying a double-sided tape 1 having an adhesive layer 1b releasably attached to one surface of a release paper 1a, and cutting only the adhesive layer 1b. It comprises an adhesive layer cutting device 4, a sticking device 7 for sticking the cut adhesive layer 1b to the sticking target 6, and a clamp device 8.

First, the conveying device 2 for the double-sided tape 1 will be described. In the double-sided tape 1, a roll body 11 wound in a roll shape is held by a holding roll 22 rotatably provided on a base 21. Double-sided tape 1 pulled out from roll body 11
Are guide rollers 23a, guide plates 23b and 23c, guide rollers 23d and 23e and guide rollers 23f that are displaceably provided.
The winding roll 24 is guided by the guide means 23 consisting of
The release paper 1a is adapted to be wound around. The guide roller 23f is rotationally driven by the constant pitch motor 25 and sends the release paper 1a to the winding roll 24 side at a constant pitch. Furthermore, in order to prevent slippage and slippage with respect to the release paper 1a, the outer peripheral surface of the guide roller 23f is knurled.

On the other hand, the winding roll 24 is rotationally driven with a constant torque by a drive motor (not shown).

Therefore, the rotation speed of the winding roll 24 is to be reduced according to the diameter of the wound roll, and because the winding roll 24 winds the release paper 1a by a fixed pitch,
The length of the adhesive layer 1b attached to the attachment target 6 is always constant.

The guide rollers 23d and 23e are rotatably supported at the tips of levers 23g and 23h whose one ends are swingably supported. Bias springs 23i, 23j are hooked on the levers 23g, 23h, and the release paper 1a
It is designed to be contacted by. Further, on the front surface of the base 21, sensors 26, 26 for detecting the presence or absence of a tape are arranged.

The base 21 is supported so as to be able to move forward and backward and ascend and descend. The supporting means 3 will be described. As shown in the second illustration, a moving plate 33 is attached to the tip of a support shaft 32a which is supported by a bearing 32 provided on a fixed frame 31 so as to be able to move forward and backward.
Is stuck. An air cylinder 34, which is a drive means for moving the moving plate 33 forward and backward, is fixed to the frame 31, and the tip of a shaft 34a of the air cylinder is connected to the moving plate 33. An air cylinder 36, which is a driving means for moving the base 21 up and down via a mounting plate 35, is fixed to the moving plate 33. A support plate 37 is connected to the tip of the shaft 36a of the air cylinder 36. The base 21 is fixed to the front surface of the support plate 37, and the guide plate 37a is
Is fixed to the moving plate 33, and guide rollers 38 for guiding both end surfaces of the guide plate 37a are rotatably supported on the moving plate 33.

The adhesive layer cutting device 4 is attached to the base 21 at a position where the double-sided tape 1 is pulled out from the roll body 11. As shown in the third and fourth drawings, a fixed plate 41 is fixed to the base 21, and a swing plate 42 is swingably supported on the fixed plate 41 by a shaft 42a. The fixed platen 41 has a solenoid 43 as a driving means.
Is fixed, and its piston 43a can come into contact with the abutting plate 42b press-fitted into the rocking disc 42, so that the rocking disc 42 is moved forward by the forward movement of the piston 43a and retracted by the return spring 44. Has become. The retracted position of the rocking plate 42 is positioned by the contact of the contact plate 42c with the stopper 45 press-fitted into the fixed plate 41. An air cylinder 46, which is a driving means, is attached to the rocking plate 42, and its piston
A sliding body 47, which reciprocates as the piston moves forward and backward, is fixed to the tip of 46a. The sliding of the sliding body 47 is guided by a guide shaft 42d provided on the rocking plate 42. A cutter mounting board 48 is attached to the sliding body 47, and a cutter holder 49 is attached to the tip of the cutter mounting board 48.
Is screwed, and a cutter 50 is sandwiched between the cutter mounting plate 48 and the cutter holder 49. Cutter 50
A tape receiver 51, through which the double-sided tape 1 can pass, is fixedly installed at a position opposed to. The tape receiver 51 has a fifth
As shown in the figure, a guide groove 51a through which the double-sided tape 1 passes and an air hole 51b are formed in the center of the front end surface, and the release paper 1a of the double-sided tape 1 is sucked from the back side by a depressurizing means not shown. It is designed to hold. As shown in FIG. 6, the tip of the cutter 50 swings the swinging plate 42 and slides 47.
The reciprocating motion is performed according to a closed loop locus abcd, which is a combination of the sliding motion of the above, and only the adhesive layer 1b on the release paper 1a is cut at the locus a, and the kerf 1c is cut as shown in FIG. To form.

Since the cutter 50 cuts only the adhesive layer 1b along the locus a as described above, it must move to a depth that matches the thickness of the adhesive layer 1b. Therefore, a means for adjusting the position of the cutter 50 will be described. As shown in the third and fourth drawings, the cutter mounting plate 48 is swingably connected to the sliding body 47 by the screw 52, and the mounting base 53 is fixed on the cutter mounting plate 48. A micrometer 54 is supported by this mounting base 53. The tip end surface of the shaft 54a of the micrometer 54 elastically contacts the stopper 55 provided upright on the sliding body 47 by the spring force of the spring 56. By rotating the knob 54b of the micrometer 54, the shaft 54a advances and retreats, the tip surface of the shaft abuts the stopper 55, and the angle of the cutter mounting board 48 with respect to the sliding body 47 changes, which changes the tip position of the cutter 50. It can be finely adjusted. Adjust to the desired position,
Therefore, if you tighten the screw 52, the cutter mounting board 48 will slide 47
The cutter 50 is held in the adjusted position and reciprocates according to the above trajectory abcd.

The pasting target 6 is conveyed to a fixed position on the downstream side of the adhesive layer cutting device 4, and the pasting device 7 is attached to the base 21 facing the pasting target 6. As shown in the first and second illustrations, the sticking device 7 has a pressing pad 71 with a "ku".
It is provided at the tip of the L-shaped lever 71a, and the lever 71a is the base.
The support portion 21a of the shaft 21 is swingably supported by a shaft 72, and a return spring 73 is hooked. A driven pin 74 is provided at the center of the lever 71a, and a cam 76 is fixed to the output shaft 75 of the motor arranged in the support portion 21a.
Slides on this cam surface. Since the cam 76 has the protrusion 76a formed thereon, the driven pin 74 rides on the protrusion 76a, whereby the lever 71a is rockably driven, and the pressing pad 71 moves forward to face the attachment point of the attachment object 6. Contact. When the driven pin 74 passes through the protrusion 76a, the pressing pad 71 is retracted by the spring force of the return spring 73. In addition, a pressing frame 77 is provided on the base 21 to press the attachment target 6 and fix it at a fixed position during work. The pressing frame 77 is suspended by a shaft 78, and this shaft compresses and extends a coil spring 79. By doing so, it is possible to move back and forth. The presser pad 71 is an opening 77 formed in the presser frame 77.
It is possible to move forward from a toward the pasting target 6.

The guide plate 23c forming the guide means 23 has the same structure as the lever 71a, and moves forward and backward together with the pressing pad 71.

A clamp device 8 is provided between the adhesive layer cutting device 4 and the sticking device 7. In this, an air cylinder 81 which is a driving means is fixed to a base 21 near the path of the double-sided tape 1, the tip of a shaft 81a that advances and retreats by the air cylinder is tapered, and a backing plate 82 is provided on the back surface of the double-sided tape 1. By advancing the shaft 81a, the double-sided tape 1 is clamped between the receiving plate 82 and the tapered tip.

Next, a series of operations for automatic cutting and pasting will be described in detail. The double-sided tape 1 is guided by the guide roller 23f driven by the constant pitch motor 25 from the roll body 11 for the constant pitch to the guiding means 2
It is guided by 3 and pulled out, and passes through the guide groove 51a of the tape receiver 51 in the adhesive layer cutting device 4. The double-sided tape 1 is guided by being sucked and held by the tape receiver 51 by the air depressurized by the air holes 51b. So the air cylinder
When the sliding body 47 is retracted (moved upward) from the positions shown in FIGS. 3 and 5 by 46, the cutter 50 moves along the locus a shown in FIG. 6 to cut only the adhesive layer 1b to form the cut groove 1c. Next, the swing plate 42 swings by the solenoid 43, and the cutter 50 moves along the locus b. Then slide the air cylinder 46
When the cutter moves forward, the cutter 50 moves along the locus c, and finally the spring force of the return spring 44 causes the rocking plate 42 to rock in the direction opposite to the previous direction, and the cutter 50 moves along the locus d to the original position. Return. This operation is repeated at predetermined intervals,
The adhesive layer 1b is cut into a predetermined length.

The double-sided tape 1 is further sent by the guide means 23 to reach the sticking device 7. Since the pasting target 6 is conveyed facing the pasting device 7, the air cylinder 36 operates to support the support plate.
The base 21 moves forward (moves downward) together with 37, and the holding frame 77 elastically contacts the attachment target 6 and fixes it in place. Then, when the cam 76 rotates and the follower pin 74 of the protrusion 76a rides on the lever 71a, the pressing pad 71 advances and the double-sided tape 1 is attached from the release paper 1a side together with the cut adhesive layer 1b. Press the object 6. As mentioned above, the guide plate 23c
The guide plate 23c also moves forward as the pressing pad 71 moves forward, and guides the double-sided tape 1 in parallel with the sticking surface of the sticking target 6. When the driven pin 74 passes through the protrusion 76a, the lever 71a retracts due to the spring force of the return spring 73, the pressing pad 71 and the guide plate 23c also retract (move upward), and only the cut adhesive layer 1b is attached. It will be attached and left on 6.

After the pressing pad 71 and the guide plate 23c have retracted, only the release paper 1a of the double-sided tape 1 is continuously guided by the guide means 23 and wound up by the winding roll 24.

When the adhesive layer is attached to the attachment target 6 at two locations, the air cylinder 34 is operated to move the moving plate 33 and the base 21 backward (to the left) as shown in FIG. Pressure pad 71
By this movement, it becomes possible to make contact with different positions of the sticking target 6, so that the adhesive layer 1b can be stuck at different positions this time by the same operation as described above.

Further, when the pressing pad 71 is moved forward, the clamp device 8 located on the upstream side of the pressing pad 71 is operated when the pressing pad 71 is moved forward so as not to move the position of the double-sided tape 1. The double-sided tape 1 is clamped by being sandwiched between the receiving plate 82 and the shaft 81a. Further, the guide roller 23d on the downstream side is
Since the lever 23g swings against the spring force of the biasing spring 23i, the tension of the double-sided tape 1 is relaxed,
The double-sided tape 1 is not pulled from the upstream side where the adhesive layer 1b is still attached, but is pulled from the downstream side where the attachment of the adhesive layer 1b has already been finished and can be lowered together with the guide plate 23c. ing.

[Effect] According to the present invention, the work of cutting the adhesive layer of the double-sided tape to a predetermined length and sticking it on the sticking target can be automated, and the work can be performed extremely efficiently.

The base can be moved up and down, the pressing pad and the guide plate of the sticking device are provided so as to be able to move forward and backward with respect to this base, and other guide plates are provided on the lower surface of this base, and further the guide means Of these, the guide means on the downstream side of the sticking device is displaceable, and makes elastic contact with the release paper by the spring force of the biasing spring, and clamps the double-sided tape when the pressing pad advances. Since the double-sided tape on the sticking object is held at a predetermined position without displacement and wrinkles, it is easy to stick the adhesive layer to the sticking object with high positional accuracy. it can. Further, since the double-sided tape is clamped and attached by the clamp device, a predetermined adhesive layer can be attached at a predetermined position (claim 1).

If the position of the cutter mounting plate can be adjusted with respect to the sliding body, it is possible to cope with changes in the thickness of the double-sided tape and to cut the adhesive layer to a necessary and sufficient depth (claim 2).

The tape receiver is fixedly installed at a position facing the cutter, and if this tape receiver is provided with an air hole for adsorbing and holding the release paper from the back side, the double-sided tape will not be displaced during cutting. It can be adsorbed and held, and the adhesive layer can be cut at an accurate position (claim 3).

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 and FIG.
The figure shows an enlarged cross-sectional view and an enlarged front view of the adhesive layer cutting device. FIG. 5 is a partially cutaway enlarged view showing a cutting position shown in FIG.
The figure shows the closed-loop reciprocating motion of the cutter, and FIG. 7 is an enlarged cross-sectional view of the double-sided tape whose adhesive layer has been cut. 1 ... Double-sided tape, 1a ... Release paper, 1b ... Adhesive layer, 11 ... Roll body, 21 ... Base, 22 ... Holding roll, 23 ... Guide means, 23b, 23c ... Guide plate, 23i, 23j ...... biasing spring, 24 ...... winding roll, 33 ...... moving plate 4 ...... adhesive layer cutting device, 41 ...... fixed plate, 42 ...... rocking plate, 43, 46 ...... drive means, 47 …… Sliding body, 48 …… Cutter mounting board, 50 …… Cutter, 51 …… Tape holder, 51b …… Air hole, 6 …… Pastement object, 7 …… Pasting device, 71 …… Pressing pad, 8 ...... Clamping device.

Claims (3)

[Claims] 1. A base (21), an adhesive layer cutting device (4),
It is composed of a sticking device (7) and a clamp device (8), and the base (21) can be moved up and down by a moving plate (33), and a holding roll (22) is provided on the base. The guide means (23), the winding roll (24) and the guide plate (23b) are arranged, and the holding roll (22) has the adhesive layer (1b) peeled off from one surface of the release paper (1a). It is a rotatable member that holds a roll body (11) of a double-sided tape (1) that is attached as much as possible, and the guide means (23) guides the release paper (1a) along a predetermined path. The guide means (23d, 23f) on the downstream side of the pasting device (7) is displaceable, and is elastically contacted with the release paper (1a) by the spring force of the biasing springs (23i, 23j). The take-up roll (24) winds the release paper (1a) that has passed through the guide means (23), and the guide plate (23b). Is provided on the lower surface of the base (21), the adhesive layer cutting device (4) is attached to the base (21) at a predetermined position of the path, and is placed on the release paper (1a). Only the adhesive layer (1b) is cut into a predetermined length, and the adhesive layer cutting device (4) includes a fixed plate (41), a rocking plate (42), a sliding body (47), A cutter mounting board (48),
It is composed of a cutter (50) and a tape receiver (51), the fixed plate (41) is fixed to the base (21), and the swing plate (42) is fixed to the fixed plate (41). The sliding member (47) is swingably supported on the disc (41) and is reciprocally swung by a drive means (43) attached to the fixed disc. Is slidably supported on the cutter, and is reciprocally moved by the drive means (43) attached to the swing plate. The cutter (50) is attached to the cutter attachment plate (48). Only the adhesive layer (1b) on the release paper (1a) is reciprocated by performing a closed-loop reciprocating motion in which the oscillating motion of the oscillating plate (42) and the sliding motion of the sliding body (47) are combined. The aforesaid sticking device (7) is fixed at a position downstream of the adhesive layer cutting device (4). It is attached to the base (21) so as to face the pasting target (6) arranged at the position, and is moved forward with respect to the base in the direction orthogonal to the surface on the release paper (1a) side. Push pad (7
1) and a guide plate (23c), the pressure pad (71) and the guide plate (23c) move forward, and the pressure-sensitive adhesive layer is cut together with the release plate (1a) together with the guide plate (23b). (1b) is pressed against the pasting target, and the pressure pad is retracted to stick only the cut adhesive layer to the pasting target, and the clamp layer (8) is the sticking device ( 7) is provided between the adhesive layer cutting device (4) and the double-sided tape (1) is clamped when the pressing pad (71) and the guide plate (23c) advance. An automatic cutting and pasting device for double-sided tape. 2. The automatic cutting and pasting device for double-sided tape according to claim 1, wherein the cutter mounting plate (48) is provided so that its position can be adjusted with respect to the sliding body (47). 3. The tape receiver (51) is fixedly installed at a position where the double-sided tape (1) can pass and faces the cutter (50), and is decompressed by a decompression means. The double-sided tape automatic cutting and pasting device according to claim 1, wherein an air hole (51b) for adsorbing and holding the release paper (1a) from the back side is formed.