JPH08282903A - Adhesive tape cutting device - Google Patents

Abstract

PURPOSE: To stably supply an adhesive tape and surely cut off the same. CONSTITUTION: This is provided with a roller 3 having a radial groove 2 and rotatably driven, a guide roller 21 for applying an adhesive tape around the peripheral surface of the roller 3 covered with a non-adhesive material 14, a feed roller 22 for feeding the adhesive tape 5 together with the guide roller 21, a blade 7 for cutting the adhesive tape 5, a cylinder 42 to shift the blade 7 to the roller 3 for inserting the blade 7 in a groove 2 of the roller 3, a tape holder 48 to give tension to the adhesive tape and hold the same on the peripheral surface of the roller 3 and an attracting pad 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape cutting device for cutting an adhesive tape wound in a roll.

[0002]

2. Description of the Related Art In a conventional adhesive tape cutting apparatus, as shown in FIG. 9, a feeding roller 72 having a gear-shaped outer periphery for pulling out the adhesive tape 71 wound on a reel 70 and an adhesive tape 71 are sandwiched. Roller 73 and lower roller 74
And a fixed upper blade 7 for cutting the adhesive tape 71
5 and a lower blade 76 that moves up and down with respect to the upper blade 75. The upper roller 73 is vertically movable, and the lower roller 74 is a silicon rubber roller.

When the feed roller 72 and the upper and lower rollers 73 and 74 rotate, the adhesive tape 71 is fed, and the adhesive tape 71 sandwiched between the upper roller 73 and the lower roller 74 is placed between the upper blade 75 and the lower blade 76. Reach level. When the length of the adhesive tape 71 passing between the upper blade 75 and the lower blade 76 reaches a certain length, the tape feeding is stopped and the lower blade 76
Is moved up and down toward the upper blade 75 to cut the adhesive tape 71.

[0004]

In the conventional adhesive tape cutting device described above, as shown in FIG. 10 (a), since the adhesive tape 71 fed forward of the blades 75 and 76 is unsupported, it is hung down. As a result, the tape cannot be fed or the adhesive tape 71 cannot be held well when held by a suction pad or the like.

Further, as shown in FIG. 10 (b), the glue surface 7
The adhesive tape 71 adheres to the lower blade 76 that contacts 7 and the adhesive tape 71 bends, making it impossible to feed the tape, or the adhesive of the adhesive tape 71 adheres to the lower blade 76 during repeated cutting to make the cutting impossible. There were many Further, when the adhesive adheres to the gear-shaped feed roller 72, the adhesive tape 71 is wrapped around and the apparatus itself becomes unusable. Therefore, it is necessary to wipe off the adhered adhesive with a solvent. Furthermore,
Since the above-mentioned problems are more likely to occur in an adhesive tape having stronger adhesiveness, it is not suitable for cutting the strong adhesive tape. As is apparent from the above, the conventional adhesive tape cutting device has a problem that maintenance is troublesome and work efficiency is low.

In view of the above, an object of the present invention is to provide an adhesive tape cutting device which ensures the supply of the adhesive tape and improves the work efficiency.

[0007]

As shown in FIG. 1, a means for solving the problems according to the present invention includes a roller 3 provided with a groove 2 in the radial direction and rotationally driven, and an adhesive tape 5 along the peripheral surface of the roller 3. Adhesive tape supply means 6, a blade 7 for cutting the adhesive tape 5, and a moving means 8 for relatively moving the blade 7 and the roller 3 for inserting the blade 7 into the groove 2 of the roller 3 are provided. Further, a holding means 9 for holding the adhesive tape 5 is provided.

[0008]

In the above means for solving the problems, the adhesive tape supply means 6 guides the adhesive tape 5 along the peripheral surface of the roller 3, and the roller 3 is driven to rotate so that the adhesive tape 5 is sent out along the peripheral surface. Be done. Further, when the roller 3 is rotated and the blade 7 and the groove 2 are aligned with each other, the roller 3 is stopped and the holding means 9 holds the adhesive tape 5 on the peripheral surface of the roller 3. Next, the blade 7 is inserted into the groove 2 by the moving means 8 to cut the adhesive tape 5.

[0009]

EXAMPLE An adhesive tape cutting device according to an example of the present invention is
As shown in FIG. 1, the mounting table 1 is provided with a roller 3 which is provided with a groove 2 in the radial direction and is rotationally driven, and an adhesive tape supply means 6 which draws out the adhesive tape 5 wound on a reel 4 and supplies it to the roller 3. A blade 7 is arranged obliquely above the roller 3, and moving means 8 for inserting the blade 7 into the groove 2 is provided. Further, a holding means 9 for holding the adhesive tape 5 is arranged above the roller 3. The mounting table 1
Are movable on the rail 10.

As shown in FIG. 2, the roller 3 comprises an inner cylinder 12 and an outer cylinder 13 connected by a support wall 11. Outer cylinder 1
3 is divided into five in the circumferential direction, the groove 2 is formed between the divided peripheral surfaces, and the divided peripheral surface of the outer cylinder 13 is covered with a thin plate-shaped non-stick material 14, and both ends thereof are It is fixed to the outer cylinder 13 by screws via the support 15. Non-sticky material 1
No. 4 is one in which a non-adhesive fluororesin layer is formed on the surface by Teflock processing or the like, or a non-adhesive material such as silicon resin is processed into a thin plate shape. The rotary shaft 16 is inserted in the inner cylinder 12 of the roller 3 and
By fitting the protrusion 18 of the rotary shaft 16 into the key groove 17 of the rotary shaft 16, the rotary shaft 16 and the roller 3 are interlocked. The rotating shaft 16 is a pair of side walls 19 erected on the mounting table 1.
Is rotatably supported by a gear 20 at one end of the rotary shaft 16.
Is provided.

The adhesive tape supply means 6 has a barrel-shaped guide roller 21 that is in pressure contact with the peripheral surface of the roller 3, a feed roller 22 that is in pressure contact with the guide roller 21, and a drive device 23 that drives each roller 3, 21, 22. And a reel stand 24 that rotatably supports the reel 4 around which the adhesive tape 5 is wound.

A non-sticky material 25 similar to the roller 3 is wound around the outer circumference of the feed roller 22, and the non-sticky material 25 is fixed by screws via a support 26. And
The feed roller 22 has a feed roller gear 27 integrally formed on one end side, and is rotatably supported by a feed roller shaft 28 via a bearing 29. Both ends of the feed roller shaft 28 are loosely fitted in shaft holes 30 of the side wall 19 and fixed by nuts. A play is provided in the shaft hole 30 formed in the side wall 19 toward the center of the guide roller 21, and the feed roller 22 can be pressed against and separated from the guide roller 21.

The guide roller 21 has a guide roller gear 31 integrally formed on one end side, and is rotatably supported by a guide roller shaft 32 via a bearing 33. The guide roller shaft 32 is an L-shaped shaft support plate 3 attached above the side wall 19.
It is loosely fitted in the shaft hole 35 formed in No. 4 and is fixed by a nut. In addition, a play is provided in the shaft hole 35 toward the center of the roller 3, and the guide roller 21 is provided with a play.
Can be pressed and separated from each other.

The drive unit 23 includes a motor 36 and a motor 3
And a transmission portion 37 for transmitting the driving force of No. 6 to each of the rollers 3, 21 and 22. The motor 36 is fixed to a motor base 38 protruding from one end of the mounting table 1 by an L-shaped fixing frame 39.

The transmission portion 37 includes a drive gear 40 attached to the motor 36 and the roller 3 meshed with the drive gear 40.
Gear 20, a guide roller gear 31 meshed with the gear 20 of the roller 3, and a feed roller gear 27 meshed with the guide roller gear 31. The rotation of the motor 36 causes the rollers 3, 21, 22 to rotate in conjunction with each other. It

As shown in FIG. 3, the blade 7 has a thin plate shape, one end facing the roller 3 is sharpened, a screw hole 41 is formed at the other end, and the other end is a moving means 8 of a cylinder 42. It is attached to the tip of the rod 43 with a screw. As a result, the blade 7 can be easily replaced when the blade 7 is damaged or the blade tip is deteriorated. Although the moving means 8 is a general fluid pressure cylinder, it may be a solenoid or the like.

The cylinder 42 is screwed to a wall or the like erected on the mounting table 1 via an L-shaped stopper 44, is arranged obliquely above the peripheral surface of the roller 3, and has a rod 43 of the cylinder 42. The blade 7 attached to the tip of the roller 3 is oriented toward the axial center of the roller 3 at a constant distance from the roller 3. The stopper 44 is formed with a screw hole 45 for fixing the cylinder 42 and a screw hole 46 for fixing to the wall. The screw hole 45 for fixing the cylinder 42 is formed in the axial direction of the roller 3. A play is provided so that the blade 7 can be positioned with respect to the axial direction of the roller 3, and a play is provided in the screw hole 46 for fixing to the wall in the circumferential direction of the roller 3 so that the blade 7 is provided in the width direction of the groove 2. Can be positioned with respect to. The blade 7 keeps a constant distance from the roller 3 when the cylinder 42 is not operating, and the stroke of the cylinder 42 is set so that the blade 7 is inserted into the groove 2 when operating.

The holding means 9 includes a suction pad 47, a pair of tape retainers 48 arranged at both ends of the suction pad 47, and a moving portion such as a cylinder or a motor for contacting and separating these from the peripheral surface of the roller 3. It consists of

The tape retainer 48 is made of an elastic member such as rubber attached to the lower surface of a cylindrical support 49. The suction pad 47 is attached to the lower end of the suction pipe 51 and communicates with a vacuum pump (not shown) via an intake hole 52. The suction pipe 51 penetrates the support body 49 and is movably supported in the vertical direction, and a spring 54 is interposed between the support body 49 and a ring 53 fitted on the suction pipe 51.
7 is being pushed downward.

The support 49 is supported by a movable arm (not shown) that swings and moves, and is brought into contact with and separated from the roller 3 by the moving portion. In addition, the movable arm is the support 49.
Is reciprocated between the roller 3 and the adherend 55.

Further, the reel 4 is rotatably supported by a shaft 24a attached to a reel stand 24 provided upright on the mounting table 1, so that the adhesive tape 5 wound on the reel 4 is reduced. A limit switch 56 for detecting is provided. The limit switch 56 includes a sensor roller 57 that is biased so as to come into contact with the back surface of the adhesive tape 5 wound around the reel 4. When the adhesive tape 5 disappears, the sensor roller 57 moves toward the center of the reel 4. The limit switch 56 works. further,
A proximity sensor 58 that detects the groove 2 of the roller 3 is provided on the side of the roller 3, and a control unit that drives and controls the motor 36 based on the output signals of the limit switch 56 and the proximity sensor 58 is provided.

As the proximity sensor 58, a general magnetic field type or capacitance type proximity sensor 58 is used, which is fixed to the side wall 19 and is detected by the gear 20 of the roller 3 facing the proximity sensor 58. A piece 60 is attached. The detected piece 60 is arranged at a position corresponding to the groove 2 of the roller 3, and when the proximity sensor 58 detects the detected piece 60, the blade 7
The proximity sensor 58 is positioned so that the groove 2 and the groove 2 are aligned.

As shown in FIG. 8, the control unit counts the number of the grooves 2 passed from the output of the proximity sensor 58 and stops the roller 3 when the number of the grooves 2 reaches a preset set value. It has a function of cutting the adhesive tape 5 at an arbitrary length. Therefore, by increasing the total number of the grooves 2 of the roller 3, the length of the adhesive tape piece 61 to be cut can be set more finely.

In the above structure, first, the reel 4 is attached to the reel base 24 so that the adhesive surface of the adhesive tape 5 faces downward and is pulled out, and the adhesive tape 5 is pulled out and passed through the gap between the guide roller 21 and the feed roller 22. Then, it is set so as to pass along the guide roller 21 and the roller 3 so as to be along the peripheral surface of the roller 3.

When the setting is completed, as shown in FIG. 4, the roller 36 is rotationally driven by the motor 36, and the feed roller 22 and the guide roller 21 that are pressed against each other with the adhesive tape 5 interposed therebetween rotate in association with the roller 3, and The adhesive tape 5 is sent out along the peripheral surface of the roller 3 by the guide roller 21 that is in pressure contact with the roller 3.

When the proximity sensor 58 detects the detected piece 60 corresponding to the groove 2 and the adhesive tape 5 is fed out by a predetermined length, the driving of the motor 36 is stopped and each roller 3, as shown in FIG. 21 and 22 are stopped. At this time, the centers of the blade 7 and the groove 2 are aligned. Then, the support 49 of the holding means 9 descends, the suction pad 47 comes into contact with the adhesive tape 5 on the peripheral surface and stops, and the tape retainer 48 further includes the spring 54.
While pushing down, it descends and comes into contact with the adhesive tape 5, and the descending is stopped, and the adhesive tape 47 sucks and holds the adhesive tape 5. Then, the cylinder 42 is operated and the blade 7 is inserted into the groove 2. At this time, the adhesive tape 5 is held by the suction pad 47 and the tape retainer 48 on one side across the groove 2.
Since the other side is held by the guide roller 21, tension is applied, and even if the blade 7 strikes, the blade 7 is bent and cut without entering the groove 2.

When the cutting is completed, as shown in FIG. 6, the support 49 of the holding means 9 rises to its original position, the suction pad 47 also rises, and the suction pad 47 which sucks the cut adhesive tape piece 61. Is moved to a position above the adherend 55 by a movable arm (not shown), as shown in FIG. Then, the support body 49 descends, the suction pad 47 contacts the adherend 55, and the adhesive tape piece 61 is attached to the adherend 55. After the adhesive tape piece 61 is separated from the suction pad 47, the support body 49 moves up to the original position and is returned above the roller 3. After that, this cycle is repeated and the work is continued.

As described above, since the adhesive tape 5 is held on the peripheral surface of the roller 3 covered with the non-stick material 14, the adhesive tape 5 is bent and cannot be fed, or the adhesive tape 5 is sucked by the suction pad 47. When it is adsorbed by, there is no problem that it cannot be adsorbed well.

Since the adhesive tape 5 held on the peripheral surface of the roller 3 is cut by inserting the blade 7 into the center of the groove 2 of the roller 3, the lower blade becomes unnecessary and the adhesive tape 5 is attached to the lower blade. Adhesive tape 5 bends and becomes unable to feed, or adhesive tape 5 is attached to the lower blade during repeated cutting.
There is no concern that the glue will stick to it and make it impossible to cut.

Further, since the feed roller 22 is covered with the non-viscous material 25 and the adhesive tape 5 is fed together with the guide roller 21 which is in pressure contact, there is no possibility that glue adheres to the feed roller 22 and the apparatus itself becomes unusable. It is not necessary to wipe off the adhesive adhering to the blade 7, the roller 3, etc. with a solvent, or to straighten the bent adhesive tape 5. In addition, since the guide roller 21 has a barrel shape, the pressure-sensitive adhesive tape can be strongly pressed, stable supply can be performed, and the pressure-sensitive adhesive tape 5 on the peripheral surface of the roller 3 can be pressed at the raised outer peripheral central portion. Therefore, the glue is less likely to adhere to the guide roller 21, and the glue is less likely to adhere to the peripheral surface of the roller 3.

Moreover, since all the members in contact with the adhesive surface of the adhesive tape 5 are made of non-adhesive material, the adhesive does not adhere to the rollers even if the strong adhesive tape is repeatedly cut, and the adhesive tape 5 can be cut. Is not limited by the adhesive strength of the glue.

The adhesive tape cutting device of this embodiment is
It is used to fix the starting end or the end of the wire rod to the bobbin around which the wire rod is wound, and contributes to the automation of the terminal treatment of the wire rod.

The present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made within the scope of the present invention. For example, in the above embodiment,
The non-viscous material 14 does not have to be used on the peripheral surface of the roller 3, and the tape retainer 48 and the suction pad 47 are eliminated.
The adhesive tape 5 is held on the roller 3 by the adhesive force of the glue, and the adhesive tape 5 can be cut by using the tension. The end of the cut adhesive tape piece 61 attached to the roller 3 is pinched with a finger or the like to be peeled off. May be. Further, as the holding means 9, the tip end of the adhesive tape 5 may be grasped and made to follow the peripheral surface of the roller 3. As the moving means 8, instead of moving the blade 7, the roller 3 may be moved with respect to the blade 7.

[0034]

As is apparent from the above description, according to the present invention, since the adhesive tape is arranged along the peripheral surface of the roller, the adhesive tape can be easily sent out by the required length and can be cut. When doing, the adhesive tape can be supported, and the cutting can be reliably performed.

Further, since the adhesive tape is cut by inserting the blade into the groove of the roller, the lower blade can be discarded, and the trouble caused by the adhesive tape or glue adhering to the lower blade can be prevented. it can. Therefore, the adhesive tape can be stably supplied, and moreover, the adhesive tape can be surely cut, so that continuous cutting work can be performed and the work efficiency can be improved.

Further, by providing a holding means, the adhesive tape can be held properly when cutting,
The certainty is increased, the cut adhesive tape is easily handled, and the cutting operation can be automated.

[Brief description of drawings]

FIG. 1 is a front view of an adhesive tape cutting device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a drive system of rollers, feed rollers, and guide rollers.

FIG. 3 shows a blade

FIG. 4 is a diagram showing a state in which the adhesive tape is guided to a roller.

FIG. 5 is a diagram showing a state when the adhesive tape is cut.

FIG. 6 is a diagram showing a state in which a piece of adhesive tape is taken out.

FIG. 7 is a diagram showing a state in which an adhesive tape piece is attached to an adherend.

FIG. 8 is a flowchart showing drive control of rollers.

FIG. 9 is a view showing a conventional adhesive tape cutting device.

10A is a diagram when the adhesive tape is bent, and FIG. 10B is a diagram when the adhesive tape is attached to the lower blade.

[Explanation of symbols]

 2 groove 3 roller 5 adhesive tape 6 adhesive tape supply means 7 blade 21 guide roller 22 feed roller 42 cylinder 47 suction pad 48 tape retainer

Claims (2)

[Claims] 1. A roller which is provided with a groove in a radial direction and is driven to rotate, an adhesive tape supplying means for arranging an adhesive tape on a peripheral surface of the roller, a blade for cutting the adhesive tape, and the blade. An adhesive tape cutting device, comprising: a moving means for relatively moving a blade and a roller for insertion into a groove of the roller. 2. The adhesive tape cutting device according to claim 1, further comprising holding means for applying tension to the adhesive tape and holding it on the peripheral surface of the roller.