JP2002362524A - Automatic labeling device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To apply the entire back surface of a label to a work without wrinkles and without bubbles. A label sheet (4) wound on a supply reel (5).
To the take-up reel 6 via the label sheet peeling means 13.
After the label R is peeled off from the base sheet B by the label sheet peeling means 13 and the suction head 14, the position and the posture of the label R are detected by the sensor 26, and the position and the posture are corrected. , The label R is transferred to a position above the work W held by the work positioning and holding portion 20a of the turntable 19, and the pressing roller 21 is lowered and moved in the traveling direction to move the label R from the rear end side to the front end side. To the work W while pressing

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic label sticking apparatus, and more particularly to an automatic label for sticking a variety of printed labels on a work such as a mobile phone, on which usage and precautions are printed, and a special label such as a numeric membrane switch. The present invention relates to a sticking device.

[0002]

2. Description of the Related Art Labels are applied to various works. For example, when sticking a label with a price on a product such as a super, sticking by hand does not depend on the shape of the work, the sticking position and sticking posture are not particularly strictly required, and special equipment is also required. There is an advantage that it is unnecessary. However, in the case of precision electronic devices such as mobile phones, sticking a label printed with usage and precautions by hand will result in inconsistency in the position and orientation of the label, which only significantly impairs the product value. And cannot be adopted because it is peeled off from the part protruding from the sticking position.

[0003]

Therefore, various automatic label sticking apparatuses have been proposed (Japanese Patent Laid-Open No. 5-27).
0532, JP-A-5-270533, JP-A-6-127540, JP-A-2001-97330
No., etc.).

As shown in FIG. 22, all of these automatic label pasting apparatuses adsorb and peel a label R pasted on a base sheet B by a suction head H and transfer the label R to a work W. Although the entire surface of the label is pressed against the work W at a time by the suction head H, when the label R is peeled and pressed by the suction head H, or when the entire surface of the label is pressed at once, the back surface of the label R is pressed. There have been problems that the entire surface cannot be stuck to the work, wrinkles are generated, and air bubbles are involved.

Further, as shown in FIG. 23A, a label sheet RS in which a long label material R0 is adhered to a long base sheet B is prepared, and as shown in FIG.
The label R is moved up and down while the label sheet RS is intermittently fed in the direction of the arrow according to the size of the label R.
Since the label R is manufactured by punching
As shown in (C), the dimension L itself of the labels R1 to Rn is constant because it is determined by the blanking die P, but the spacing dimension g1, g2,. There is also a problem that even if the suction head H moves up and down and moves horizontally with high precision, the label position and the attitude at the position of the work W are delicately changed due to the timing of vertical movement of the cutting die P and the die P. .

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automatic label sticking apparatus capable of sticking the entire back surface of a label to a work of a precision electronic device such as a mobile phone without wrinkles and without bubbles. And

[0007]

In order to solve the above-mentioned problems, an automatic label sticking apparatus according to claim 1 of the present invention comprises a long base sheet having a large number of labels having an adhesive on the back surface. A supply reel on which a temporarily affixed label sheet is wound, a take-up reel for winding a base sheet having labels removed from the label sheet pulled out from the supply reel, and a supply reel and a take-up reel In an automatic label sticking apparatus including a placed label sheet peeling means and a suction head arranged above the label sheet peeling means and capable of reciprocating between a work sticking position, the suction is performed by the suction head. It is characterized in that a pressing means for sequentially pressing and attaching the label transferred to the work attaching position to the work from one end to the other end thereof is provided. Is shall.

According to the above-described automatic labeling apparatus, the label is sucked by the suction head disposed between the supply reel and the take-up reel, and the label sheet is peeled off by the label sheet peeling means.
When the advancing direction of the base sheet is changed at an acute angle, the label is automatically peeled off from the label sheet, the label sucked by the suction head is transferred to the work sticking position, and the label is moved to one end side by the pressing means. By pressing against the workpiece sequentially from the other end to the other end side, it is possible to stick while extending the wrinkles and expelling bubbles, so that the entire back surface of the label does not wrinkle or bubbles are caught in , Can be pasted on the work.

In the present invention, the term "label" includes not only thin labels called labels and stickers made of ordinary printed matter, but also a certain thickness such as a numeric membrane switch in a cellular phone. In addition, the term is used in a broad sense including those having a movable portion.

According to a second aspect of the present invention, in the automatic label sticking apparatus, the pressing means is arranged on a side opposite to a moving direction of the suction head, and the labels are sequentially moved from a rear end to a front end. And affixed to it.

According to the above apparatus, the pressing means sticks the label from the rear end side to the front end side while sequentially pressing the label on the work, so that the entire back surface of the label does not wrinkle on the work. In addition, it can be attached without involving air bubbles.

According to a third aspect of the present invention, in the automatic label sticking apparatus, the pressing means is disposed on the front side in the traveling direction of the suction head, and sequentially moves the labels from the front end side to the rear end side. It is characterized in that it is pressed and attached to a work.

[0013] According to the above apparatus, the pressing means sequentially presses the label from the front end to the rear end of the label while pressing the work, so that the entire back surface of the label is not wrinkled, and It can be attached without involving air bubbles. In particular, when the label is not positioned on the center line of the pressing means due to the correction in the θ direction of the label, the label is sequentially pressed against the work from its front end side toward its rear end side in this manner. Pasting is effective.

According to a fourth aspect of the present invention, in the automatic label sticking apparatus, the pressing means is a pressing roller.

According to the above apparatus, the entire back surface of the label can be stuck to the work without wrinkles and without bubbles by a simple pressing roller.

According to a fifth aspect of the present invention, in the automatic label sticking apparatus, the pressing roller has a notch in a part of a circumferential direction.

According to the above-described apparatus, when the label is attached to the concave portion of the work, the label in the concave portion is moved from one end to the other end by using the notch portion of the pressing roller regardless of the step of the concave portion. It is possible to securely press and adhere to the part.

According to a sixth aspect of the present invention, in the automatic label sticking apparatus, a sensor for detecting a position and a posture of the label sucked by the suction head is arranged in the middle of the path of the suction head in the traveling direction. It is assumed that.

According to the above-described apparatus, since the position and orientation of the label sucked by the suction head can be detected by the sensor, the position and orientation of the label can be corrected using the detection output.

According to a seventh aspect of the present invention, in the automatic label sticking apparatus, the suction head is attached to a control mechanism whose position and orientation are controlled by a label output from the sensor. is there.

According to the above-described apparatus, the control mechanism is driven by the detection output of the label by the sensor to move the suction head in the ± X direction and ± Y direction, and rotate in the ± θ direction, and thereby the position and posture of the label. Can be corrected, and the label can be correctly attached to a predetermined position on the work.
In particular, as described above, correcting the position and orientation of the suction head by driving the control mechanism to correct the position and orientation of the label is more difficult than correcting the position and orientation of the work. Can be significantly easier, and
It can be cheap.

According to an eighth aspect of the present invention, there is provided an automatic label sticking apparatus, wherein the base sheet to which the label is stuck has sprocket holes at regular intervals along at least one side end in the longitudinal direction. It is.

According to the above-mentioned apparatus, a label such as a numeric membrane switch in a cellular phone cannot be pressed strongly on the upper surface of the label. By applying the brake, the label can be peeled off smoothly, and the base sheet can be reliably fed at a predetermined pitch.

According to a ninth aspect of the present invention, there is provided an automatic label sticking apparatus for detecting a position of the suction head for detecting that the suction head is located above the label sheet peeling member, above the sensor, and above the work sticking position. A sensor is provided.

According to the above-described apparatus, the position of the suction head can be detected by the suction head position detection sensor, and the driving unit such as the servo motor for moving the suction head can be stopped.
The suction head is accurately positioned and stopped at a position above the label sheet peeling member, above the sensor, and above the work sticking position, to perform label suction and peeling operations, to correct the label position and posture by the sensor, and to stick the work. The label sticking operation at the position can be performed accurately.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic label attaching apparatus according to an embodiment of the present invention will be described with reference to the drawings.
1 is a front view of the automatic labeling apparatus, FIG. 2 is a plan view thereof, and FIG. 3 is a right side view thereof. FIG. 4 is an enlarged partial front view in which main parts such as the supply reel 5 and the take-up reel 6 in FIG. 1 are enlarged, and FIG. 5 is a right side view thereof. FIG. 6 is an enlarged partial front view of the suction head and the pressing roller.

1 to 6, reference numeral 1 denotes a pedestal member on which a vertical plate 2 is mounted. An arm 3 is fixed to the vertical plate 2, and a rotating shaft 5 a is attached to the arm 3.
A supply reel 5 in which a label sheet 4 on which a label R is temporarily attached on a base sheet B is wound in a roll shape is detachably mounted on the rotating shaft 5a. A rotating shaft 6a is attached to another position of the vertical plate 2, and a take-up reel 6 is detachably mounted on the rotating shaft 6a. The rotating shaft 5a and the rotating shaft 6a are driven by drive motors 7a and 7b, respectively, so that the label sheet 4 is fed out from the supply reel 5, and the base sheet B from which the label R is peeled off from the label sheet 4 is taken up by a take-up reel. It is wound up by 6.

Between the supply reel 5 and the take-up reel 6, a tension roller 8, feed rollers 9, 10, guide rollers 11, 12, and a label sheet peeling means 13 are provided. The tension roller 8 is configured such that the other end of the arm 8a to which the tension roller 8 is attached is rotatable by a shaft 8b within a predetermined angle range of a vertical plane, and applies an appropriate tension to the label sheet 4 by its own weight. It is configured.

The feed rollers 9 and 10 are composed of main rollers 9a and 10a and press rollers 9b and 10b, respectively. The main rollers 9a and 10a are connected to the drive motors 7a and 10a, respectively.
7b is configured to be rotatable via transmission means such as a timing belt and a gear. Each roller is provided with a flexible friction material such as rubber or silicone rubber on its peripheral surface, and is in contact with the label sheet 4 with an appropriate frictional resistance. Therefore, the label sheet 4 is wound on the take-up reel 6 via the feed rollers 9 and 10 while being given a predetermined tension by the tension roller 8.

The label sheet peeling means 13 cooperates with the guide roller 12 to sharply change the advancing direction of the label sheet 4 sent in a horizontal state at its leading end portion 13a, thereby attracting the label sheet 4 to be described later. The label R is peeled off from the base sheet B by a cooperative action with the suction operation of the label R by the head (14).

Above the label sheet peeling means 13, a suction head 14 is arranged with a small gap. The suction head 14 has a plurality of suction holes (not shown) on a lower surface thereof, and each suction hole is connected to a common pipe 14a from the suction head 14.
Connected to a vacuum suction system. Then, the label R below the base sheet B is floated together with the base sheet B by the vacuum suction force, and the label R can be suction-held by the suction head 14.

The suction head 14 is configured to be rotatable in a horizontal plane (θ direction) by a servo motor 15 of a posture and position control mechanism. In addition, the servo motor 16 is configured to be movable in the X direction orthogonal to the traveling direction of the label sheet 4. Further, the servo motor 17 is configured to be able to reciprocate in the Y direction which is the traveling direction. Note that the suction head 14 may be moved up and down as needed.

In front of the label sheet peeling means 13 (to the right in FIG. 1), a turntable 19 which can be intermittently rotated by a drive motor 18 is arranged. Work positioning and holding portions 20a and 20b for positioning and sucking and holding the work W are provided at the interval positions. The workpieces W1 and W2 are placed on the workpiece positioning and holding sections 20a and 20b, respectively.
(Not shown) are positioned, and each work W1, W
The height position is set such that the upper surface of the second member 2 is substantially flush with or slightly lower than the upper surface of the label sheet peeling means 13.

A pressing roller 21 as an example of a pressing means is disposed in a direction opposite to the traveling direction of the suction head 14. The pressing roller 21 is configured to be able to reciprocate between the label sheet peeling member 13 and the work positioning / holding section 20a together with the suction head 14, and is moved up and down independently of the suction head 14 by a servo motor 22. It is configured to be possible. Then, at all times, the lower end of the pressing roller 21 is
4 is held at a position slightly higher than the lower end.

A column member 23 is provided upright on the back side of the vertical plate 2 on the pedestal member 1, and a rail 24 extending in the horizontal direction is fixed to the column member 23.
4, a slider 25 is movably attached. The slider 25 is configured to reciprocate between the position above the label sheet peeling means 13 and the position above the work positioning and holding portion 20a of the turntable 19 by the servo motor 17 described above.

The slider 25 includes the suction head 14 described above, a servomotor 15 for correcting the θ direction, a servomotor 16 for correcting the position in the X direction, and the pressing roller 2.
1 and a servomotor 22 for raising and lowering the same. Therefore, with the reciprocating operation of the slider 25, the suction head 14 moves the label sheet peeling means 13
Is reciprocated between a position above the work positioning holder 20a of the turntable 19 and a position above the work positioning holder 20a of the turntable 19.

A sensor 26 is disposed at a lower position in front of the suction head 14 in the traveling direction. This sensor 2
6 is the presence or absence of the label R sucked by the suction head 14,
It detects the position and orientation. Here, the “position” refers to a deviation dimension ± ΔX in the ± X direction perpendicular to the traveling direction with respect to the suction head 14 and ± the traveling direction ±.
The deviation dimension in the Y direction ± 方向 Y, and the “posture” refers to the rotational deviation angle ± △ θ in the θ direction.

The sensor 26 is composed of, for example, four reflective sensors 26a to 26d as shown in FIG. Here, the sensor 26a is for detecting the presence or absence of the label R and the θ direction, the sensor 26b is for detecting the X direction and the θ direction, the sensor 26c is for detecting the X direction, and the sensor 26d is for detecting the Y direction. Of these, three sensors 26a to 26c
Are arranged in a line in the X direction orthogonal to the direction of movement of the suction head 14, and the remaining one sensor 26d has the same interval as the interval between the sensors 26a and 26c, and And is disposed in front of the suction head 14 in the traveling direction (Y direction). Therefore,
The sensors 26a, 26c, 26d are arranged at each vertex of an isosceles triangle.

FIGS. 7B to 7D are plan views of the sensor 26 and the label R for explaining the operation of the sensor 26 and the control mechanism when the position and orientation of the label R are normal. FIG. 7B shows that the label R sucked by the suction head 14 is positioned above the sensors 26a and 26b, and that the label R is sucked by the sensor 26a, that is, the presence of the label is detected and the sensor 26a is detected. , 26b detect that there is no shift in the X direction.

In this state, the label R is moved in the -X direction by the servo motor 16 and stops when the sensor 26c detects the label R as shown in FIG. 7C. Next, when the label R is moved in the traveling direction (Y direction) by the servo motor 17 and the sensor 26d detects the label R, as shown in FIG. ), And reaches above the work W sucked and held by the work positioning and holding portion 20 a on the turntable 19.

In FIG. 7A, even if the label R deviates from the state shown in the X direction or the -X direction, if the sensors 26a and 26b detect the label R, the same applies to the above. By moving the label R in the −X direction, the sensor 2
When the label 6b detects the label R, the position correction in the X direction can be performed.

FIGS. 8A to 8F show the “posture” of the label R.
Are abnormal, and FIGS. 8A to 8C show that the label R is +
This is for describing posture correction when rotating in the θ direction (clockwise). That is, as shown in FIG. 8A, when the sensor 26a detects the label R but the sensor 26b does not detect the label R, the label R rotates in the + θ direction (clockwise). Can be detected. Therefore, the label R is moved in the traveling direction (Y direction) by the coordinate position of the slider 25 and the servomotor 17 at this time, and as shown in FIG. Based on the coordinate position of the slider 25, the amount of deviation in the + θ direction is calculated by arithmetic processing, and then, based on the calculation result, the label R is rotated in that position by the servo motor 15 in the −θ direction (counterclockwise). Then, as shown in FIG. 8C, when the sensors 26a and 26b detect the label R, the rotation is stopped. This state is the same as the state in FIG. 7B, and thereafter, the same operations as those in FIGS. 7B to 7D are performed.

FIGS. 8 (D) to 8 (F) explain the attitude correction when the label R is rotating in the -θ direction (counterclockwise). That is, as shown in FIG. 8D, when the sensor 26b detects the label R but the sensor 26a does not detect the label R, the label R
Is rotating in the -θ direction (counterclockwise). Therefore, the label R is moved in the advancing direction (Y direction) by the coordinate position of the slider 25 at this time and the servo motor 17, and the slider 26a when the sensor 26a detects the label R as shown in FIG. Based on the 25 coordinate positions, the amount of deviation in the -θ direction is calculated by arithmetic processing, and then, based on the calculation result, the label R is rotated in that position by the servo motor 15 in the + θ direction (clockwise). Then, as shown in FIG. 8 (F), when the sensors 26a and 26b detect the label R, the rotation is stopped. This state is the same as the state in FIG. 7B, and thereafter, the same operations as those in FIGS. 7B to 7D are performed.

Actually, there are cases where the above modes are combined to form a composite mode. In this manner, the sensor 26 can detect whether the “position” or “posture” of the label R sucked by the suction head 14 is normal or abnormal and correct it.

The sliders 25a, 27b and 27c are
This is a sensor for detecting the position of the suction head 14 attached to the rail, and is attached along the rail 24. In these sensors 27a to 27c, for example, a pair of light emitting elements and light receiving elements are vertically opposed at a predetermined interval, and a light shielding plate protruding from the slider 25 is located between the light emitting elements and light receiving elements. Thereby, it is configured by a transmission type sensor that outputs a detection signal.

The sensors 27a-27c are
The suction head 14 attached to the workpiece 5 moves from the standby position (the solid line position in FIG. 1) above the label sheet peeling means 13 to the positioning and holding unit 20 for the work W, which is the position where the label R is applied.
The sensor 27a is provided for correctly reciprocating the upper and lower portions (a position indicated by a two-dot chain line in FIG. 1) of the suction head 14a.
The sensor 27b is for detecting the position of the sensor 26, and the sensor 27c is for detecting the position where the label R is attached.

Reference numeral 28 denotes a cable for supplying power to the servo motors 15, 16, 17, 22 and the like attached to the slider 25.

Next, the operation of the above-described automatic label attaching apparatus will be described.

First, a supply reel 5 in which a label sheet 4 on which a number of labels R are temporarily attached on a long base sheet B is wound in a roll shape is set on a rotating shaft 5 a of the arm 3. The label sheet 4 is pulled out from the supply reel 5, and the tension roller 8, the feed roller 9, the guide roller 11, the label sheet peeling member 13, the guide roller 12,
The leading end is taken up on the take-up reel 6 mounted on the rotating shaft 6a via the feed roller 10, and the preparation is completed.

In this state, when the drive motors 7a and 7b are driven to rotate the supply reel 5 and the take-up reel 6 mounted on the rotating shafts 5a and 6a, the label sheet 4 is pulled out from the supply reel 5. . At this time, an appropriate tension is applied to the label sheet 4 by its own weight of the tension roller 8, and the label sheet 4 is taken up by the take-up reel 6 without causing slack at any position.

First, the suction head 14 is in a standby position (solid line position in the figure) which is above the label sheet peeling member 13.
Waiting for you.

When the label R1 comes below the suction head 14, a vacuum suction force is applied to the suction head 14 via the pipe 14a. Then, the label R <b> 1 located at a minute gap below the suction head 14 floats together with the base sheet B by the vacuum suction force and is suction-held by the suction head 14. At this time, the pressing roller 21 is held at the raised position, and the lower surface thereof is slightly higher than the lower surface of the suction head 14. Therefore, the presence of the pressing roller 21 is necessary for the suction operation of the label R1 by the suction head 14. No hindrance.

In this state, the label motor 4 is fed by the drive motor 7 in the direction of the arrow shown in FIG.
When the label R1 sucked by the suction head 14 attached to the slider 25 is moved in the traveling direction (Y direction) by the rotation of the label 7, the label R1 is moved to the base sheet as shown in FIGS. Peeled from B.

That is, as shown in FIG. 9A, when the label R1 is positioned immediately below the suction head 14,
And is transported in the traveling direction at the same speed as the label sheet 4. Then, as shown in FIG. 9B, the label R1 subsequently moves horizontally in the traveling direction, while the base sheet B is attached to the sharp edge 13a of the label sheet peeling means 13 and the guide roller. As a result, the forward direction of the label R1 is peeled off from the base sheet B, and the peeled portion is gradually enlarged with the movement of the suction head 14 and the label sheet 4. Finally, as shown in FIG. 9C, the label R1 is completely peeled off from the base sheet B.

The label R1 is completely peeled off from the base sheet B, and the next label R2 is placed on the label sheet peeling means 13.
When it reaches the position, the drive motors 7a and 7b are stopped, and the winding of the label sheet 4 is temporarily stopped. On the other hand, the suction head 14 holds the servo motor 1 while holding the label R1.
7, when it reaches the position above the sensor 26, the moving speed is reduced by the detection signal from the sensor 27b, and the label R1 of the label R1 is detected by the sensor 26 as shown in FIGS. 8 (A) to 8 (F) are detected, and if there is an abnormality, the position and orientation are corrected.

That is, first, by the sensor 26a,
The start of the label R is detected. If the presence of the label R1 is not confirmed by this cueing detection, the suction head 14 is returned to the original standby position (solid line position) by the servomotor 17, and the label R1 is sucked again. The return position at this time is
It is determined by the detection signal from the sensor 27a that the slider 25 is stopped.

As shown in FIG. 7 (B), when the label R1 is confirmed, the servo motor 16 is operated by the detection signals of the sensors 26a and 26b as described above to move the suction head 14 in the -X direction. It is moved to perform position correction in the X direction.

As shown in FIG. 8 (A) or FIG. 8 (D), if there is a deviation in the ± θ direction, the servo motor 15 operates as described above to move the suction head 14 in the ± θ direction. Rotate to perform posture correction in the ± θ direction.

After the X direction correction and the ± θ direction correction are performed in this manner, the suction head 14 is moved in the traveling direction (Y direction)
When 7d detects the label R, the Y direction correction is performed.
When the label R1 moves to a position above the work W1 sucked and held by the work positioning and holding section 20a, the sensor 27
The servomotor 17 is stopped by the detection signal of c.

As described above, when the label R1 sucked by the suction head 14 comes to a position above the work W1, FIG.
As shown at 0, the pressing roller 21 is lowered by the servo motor 22, the lower end thereof is lower than the lower end of the suction head 14, and the rear end portion of the label R1 is pressed against the work 1. Subsequently, the suction head 14 and the pressing roller 21 move in the advancing direction by the movement of the slider 25 in the advancing direction by the servo motor 17, so that the pressing roller 21 rolls on the label R1, and the label R1 is thereafter moved. The work W1 is sequentially pressed from the end toward the front end, and is adhered while extending wrinkles and pushing out bubbles.

As described above, the label R1 is
Is sequentially pressed against the work W1 from the rear end toward the front end, so that the entire rear surface of the label R1 is free of wrinkles,
It can be stuck without bubbles.

When the sticking of the label R1 onto the work W1 is completed, the servo motor 22 raises the pressing roller 21 (or simultaneously with the raising).
Suction head 14 attached to slider 25
When the suction head 14 returns to the original standby position, that is, the position above the label sheet peeling means 13, the sensor 27 a
, The servomotor 17 stops.

On the other hand, the turntable 19 holding the workpieces W1 and W2 in position is moved by the drive motor
The next work W2 that has been rotated by 0 degrees and held by the work positioning and holding unit 20b by suction is placed at the sticking position, and the work W1 that has been sucked and held by the work positioning and holding unit 20a to which the label R1 has been stuck is It is arranged at the loading / unloading position, and is unloaded from the positioning holding unit 20a by handling means (not shown),
Next, a new work W3 is placed on the positioning holding portion 20a.
(Not shown) is loaded.

Thereafter, by repeating the same operation as described above, the labels R2, R3,... Of the label sheet 4 are sequentially peeled off from the base sheet B and are sequentially attached to the works W2, W3,.

FIG. 11 is a front view of a main part of an automatic label attaching apparatus according to another embodiment of the present invention, FIG. 12 is a plan view thereof, and FIG. 13 is a right side view thereof. In this embodiment, a pressing roller 21 is disposed in front of the suction head 14. That is, depending on the work W, there is a case where it is desired to apply the label R by pressing the label R in the opposite direction from the above-described embodiment, that is, sequentially from the front end to the rear end of the label R. For example, the center of the label R may be eccentric from the center line of the pressing roller 21 due to the posture correction in the θ direction. Even in such a case, the label R is sequentially pressed from one end to the other end by the pressing roller 21 toward the work W, so that the entire surface of the label R is free from wrinkles and contains no bubbles. It is desired to paste.

In FIG. 11 to FIG. 13, reference numeral 30 denotes a support member, on the upper end of which a slider 31 movable in the Y direction is mounted, and on this slider 31, a slider 32 movable in the ± X direction is mounted. I have. The suction head 14 and the pressing roller 21 are attached to the slider 32 via a shaft 33. Therefore, the suction head 14 and the pressing roller 21 are configured to be slightly rotatable about a shaft 33 in a vertical plane.

That is, when the pressing roller 21 is disposed in front of the suction head 14, the pressing roller 2
Since it is not always easy to configure the suction head 14 to be able to move up and down independently of the suction head 14, the suction head 14 and the pressing roller 21 are pivoted slightly downward about the shaft 33 so that the label R At the time of sticking, the pressing roller 21 is configured to be at a position slightly lower than the suction head 14.

The supply reel 5, the take-up reel 6,
The configuration and operation of the feed rollers 9 and 10, the guide rollers 11 and 12, the label sheet peeling means 13, and the like are the same as those in the above embodiment, and the illustration and description are omitted.

In this embodiment, when the label R affixed to the base sheet B moves to a position below the suction head 14, the suction head 14 remains horizontal (or around the shaft 33). The suction head 14 rotates slightly downward and
The distance between the label R and the label R becomes smaller), and the suction head 14 vacuum-suctions the label R together with the base sheet B. When the suction head 14 sucks the label R, the suction head 14 moves horizontally in the traveling direction together with the slider 31 while maintaining the horizontal state (or rotating slightly upward about the shaft 33 and returning to the horizontal state). When the suction head 14 comes to a position above the sensor 26, the sensor 26
Detects the position and posture of the label R, corrects the suction head 14 in the ± X direction position, the ± Y direction position, and the ± θ direction posture as required, and then turns the turntable 19 to which the work W is to be attached. Is transferred to a position above the work positioning and holding unit 20a.

At the position where the workpiece W is attached, the suction head 14
Then, the pressing roller 21 is rotated slightly downward about the shaft 33, and as shown in FIG. 14, the pressing roller 21 presses the front end portion of the label R against the work W, and in this state, the pressing roller 21 and the suction head 14 move in the moving direction. Move in the reverse direction (-Y direction). Then, the label R is pressed by the pressing roller 21.
The label R is attached to the work W while being sequentially pressed from the front end toward the rear end, and the label R is attached to the entire surface in the same manner as described above without wrinkles and without bubbles. Can be. In particular, this embodiment is suitable for the case where it is difficult to apply the label R with the pressing roller 21 disposed behind the suction head 14 due to the correction of the label R in the ± θ direction as described above.

FIG. 15 is an enlarged front view of a main part of an automatic label sticking apparatus according to still another embodiment of the present invention, FIG. 16 is an enlarged plan view of the main part, and FIG. 17 is an enlarged right side view of the main part. 15 to 17, the label sheet 4a is
As shown in FIG. 18, circular or square sprocket holes G are formed at regular intervals along both sides or one side in the width direction of the long base sheet BA, and the upper surface of the sprocket hole G is larger than the base sheet BA. A narrow label RA is attached. 9A is a sprocket feed roller for the label sheet 4a. As shown in FIG. 19, the sprocket feed roller 9A has conical or pyramid-shaped sprockets SP projecting from both sides in the width direction at the same pitch as the sprocket holes G.

Reference numeral 9B denotes a pressing roller for preventing the label sheet 4a from floating from the sprocket feed roller 9A. Since the pressing roller 9B is for preventing the label sheet 4a from coming off from the sprocket feed roller 9A, for example, as shown in FIG. 16, its width dimension is smaller than that of the sprocket feed roller 9A. Further, a porous cushion material (not shown) may be arranged on the peripheral surface to lightly press the label RA portion, or a sprocket receiving hole may be formed at the same pitch as the sprocket SP of the sprocket feed roller 9A. Alternatively, only the portion near the sprocket hole G of the label sheet 4a may be lightly pressed.

In this embodiment, the label sheet 4a
The sprocket hole G and the sprocket feed roller 9A formed in the above-described manner reduce the displacement of the label sheet 4a in the feed direction and the direction orthogonal thereto, and can not only perform more precise pitch feed, but also, for example, a numeric membrane switch in a mobile phone. This is suitable when a special label that cannot be pressed too strongly, such as

FIG. 20 is an enlarged front view of a pressing roller 21A according to another embodiment of the present invention. The pressing roller 21A has a notch 21a on a part of its peripheral surface.
The notch angle θ of the notch 21a is determined by the step of the work. For example, in a work W such as a mobile phone, in order to prevent the label R from peeling during use, a concave portion Wa is formed on the label attaching surface of the work W as shown in FIG. The label R may be attached to the bottom surface of the concave portion Wa. When the concave portion Wa is present, as shown in FIG. 21B, due to the step size d of the concave portion Wa, in the embodiment described above. The pressing roller 21 cannot press the rear end of the label R by the dimension L1. Such a phenomenon similarly occurs at the front end of the label R. Therefore, there is a problem in that the concave portion Wa originally provided to prevent the label R from being peeled causes a part where the label R is incompletely adhered, thereby easily peeling.

When the pressing roller 21A shown in FIG. 20 is used, as shown in FIG.
The label R can be attached to the bottom surface of the concave portion Wa of the work W while pressing the label R over the entire area from the rear end portion to the front end portion without wrinkles and without generating bubbles.

Although the above embodiments have been described with reference to specific embodiments, the present invention can be modified without departing from the spirit thereof.

For example, in the above embodiment, the case where the reflection type sensor is used as the sensor 26 has been described. However, in such a reflection type sensor, the head of the label R → ± θ posture correction → ± X position Since the correction → ± Y position correction and four corrections are performed in a sequence, the correction operation time becomes longer. Therefore, for example, an image recognition device such as a CCD camera may be used as the sensor. In this case, only by detecting the coordinate positions of the two corners of the label R, it is possible to simultaneously perform the ± θ attitude correction, the ± X position correction, and the ± Y position correction of the label R by an arithmetic processing, and The speed of the label attaching device can be increased.

Also, the case where the suction head 14 is moved up and down by the servo motor has been described. In this way, even if the thickness of the label R changes due to the type change, for example, the suction head 14 is moved down. By detecting the contact pressure at the time of contact with the label R and raising the suction head 14 to a slightly smaller size than that, there is an advantage that it is possible to cope with labels R of various thicknesses. You may do so.

Further, the label R is applied to the base sheet B or BA.
In order to peel off from the label sheet, it is necessary to apply a brake so that the label sheet 4, 4a is not pulled out more than necessary due to the stress at the time of peeling. However, the feed roller 9, the pressing roller 9b of the sprocket feed roller 9A, 9B can also be used to apply the brake. In particular, the width dimension of the press roller 9B is made smaller than the width dimension of the base sheet BA, and the work WA is moved by the press roller 9B.
When only the label sheet 4a is pressed, the label sheet 4a can be transported while the sufficient brake is applied to the label sheet 4a by the base sheet BA having the sprocket holes G.

Further, in the above embodiment, the case where the pressing rollers 21 and 21A are used as the pressing means has been described. However, an air blowing means for blowing air at a predetermined pressure may be used. According to such a configuration, unlike the case of the pressing roller, it is not necessary to provide the elevating means and the means for adjusting the elevating amount, and also, as shown in FIG. Even if the label R is attached to the special pressing roller 21A as shown in FIG.
There is an advantage that the label R can be stuck on the entire back surface from one end to the other end without using wrinkles and without bubbles without using any.

In the above embodiment, the case where the pressing rollers 21 and 21A as the pressing means reciprocate together with the suction head 14 has been described.
Is waiting at the position where the label R is attached.
You may comprise so that a sticking operation | movement may be performed.

[0082]

As described above, the present invention provides a supply reel in which a long base sheet is temporarily wound with a label sheet on which a number of labels having an adhesive on the back surface are affixed, and the supply reel pulled out from the supply reel. A take-up reel that takes up the base sheet from which the label has been peeled off from the label sheet, a label sheet peeling unit disposed between the supply reel and the take-up reel, and a label sheet peeling unit that is disposed above the label sheet peeling unit. In an automatic label sticking apparatus having a suction head capable of horizontal reciprocating operation, the label sucked by the suction head and transferred to the work position is sequentially pressed from one end to the other end of the work toward the work. Since it is characterized by the provision of a pressing means for sticking, the label is sucked by a conventional suction head, and the label is stuck by the suction head. In comparison with the placement, the label is pressed by the pressing means such as a pressing roller from one end to the other end of the work sequentially, and while the wrinkles are extended and the bubbles are expelled, the label is attached. There is an effect that the entire surface of the label can be stuck without wrinkles and without bubbles.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic label attaching apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the automatic label attaching apparatus of FIG.

FIG. 3 is a right side view of the automatic label attaching apparatus of FIG. 1;

FIG. 4 is an enlarged front view of a main part of the automatic label attaching apparatus of FIG. 1;

FIG. 5 is an enlarged right side view of a main part of the automatic label attaching apparatus of FIG. 4;

FIG. 6 is an enlarged front view of a main part of the automatic label attaching apparatus of FIG.

7A is a plan view of a sensor according to an embodiment of the present invention, FIG. 7B is a plan view of a sensor and a label when a label in a normal state is detected, and FIG. FIG. 7D is a plan view of the sensor and the label after the sensor and the label after the label in the normal state is moved in the Y direction.

FIG. 8A is a plan view of a sensor and a label when detecting a label in an abnormal state rotated in the + θ direction, and FIG.
(C) is a plan view of the sensor and the label after the abnormal state of the label rotated in the Y direction after the Y direction movement, and (C) is a plan view of the sensor and the label after the abnormal state of the label rotated in the + θ direction after the −θ direction rotation. ) Is a plan view of the sensor and the label at the time of detecting a label in an abnormal state rotated in the −θ direction,
(B) is a plan view of the sensor and the label after moving the label in the abnormal state rotated in the −θ direction in the Y direction, and (C) is −θ
FIG. 9 is a plan view of the sensor and the label after the label in the abnormal state rotated in the + direction is rotated in the + θ direction.

9A is a schematic front view showing a state in which the label is sucked by the suction head, FIG. 9B is a schematic front view showing a state in which the label is almost half peeled off, and FIG. 9C is a label completely peeled off. It is a schematic front view of a state.

FIG. 10 is an enlarged front sectional view of a main part when a label is attached to a workpiece by the automatic label attaching apparatus of the present invention.

FIG. 11 is an enlarged front view of a main part of an automatic label attaching apparatus according to another embodiment of the present invention.

FIG. 12 is an enlarged plan view of a main part of the automatic label attaching apparatus of FIG. 11;

13 is an enlarged right side view of a main part of the automatic label attaching apparatus of FIG. 11;

FIG. 14 is an enlarged front sectional view showing a state where a label is attached by the automatic label attaching apparatus of FIG. 11;

FIG. 15 is an enlarged front view of a main part of an automatic label attaching apparatus according to still another embodiment of the present invention.

FIG. 16 is an enlarged plan view of a main part of the automatic label attaching apparatus of FIG. 15;

17 is an enlarged right side view of a main part of the automatic label attaching apparatus of FIG.

FIG. 18 is an enlarged plan view of a main part of a label sheet used in an automatic label attaching apparatus according to another embodiment of the present invention.

FIG. 19 is an enlarged front view of a main part of an automatic label attaching apparatus according to another embodiment of the present invention.

FIG. 20 is an enlarged front view of a pressing roller according to a second embodiment of the automatic label sticking apparatus of the present invention.

21A is an enlarged longitudinal sectional view of a main part of a work for explaining the necessity of applying the pressing roller of FIG. 20, and FIG.
Is an enlarged longitudinal sectional view of a main part of a work for describing a problem when the pressing roller according to the first embodiment of the present invention is used,
FIG. 21 (C) is an enlarged longitudinal sectional view of a main part of a work for explaining a case where the pressing roller of FIG. 20 is applied.

FIG. 22 is a schematic operation explanatory view of a conventional automatic label attaching apparatus.

FIG. 23A is a partial front view illustrating a first step in manufacturing a label sheet, and FIG. 23B is a second front view in manufacturing a label sheet.
FIG. 3C is a partial front view illustrating a process, and FIG. 4C is a partial front view illustrating a problem with the label sheet.

[Explanation of symbols]

 4, 4a Label sheet 5 Supply reel 6 Take-up reel 7a, 7b, 18 Drive motor 8 Tension roller 9, 10 Feed roller 9A Sprocket feed roller 9b, 10b, 9B Pressing roller 11, 12 Guide roller 13 Label sheet peeling means 14 Adsorption Head 15, 16, 17, 22 Servo motor 19 Turntable 20a, 20b Positioning / holding portion 21, 21A Pressing means (pressing roller) 21a Notch 25 Slider 26 Label position and posture detection sensors 27a, 27b, 27c Suction head Position detection sensor R, RA label B, BA Base sheet G Sprocket hole SP Sprocket W, WA Work Wa Recess

Continued on the front page (72) Inventor Masumi Goto 5 Asahioka, Kannabe-cho, Shinyasu-gun, Hiroshima Prefecture Inscribed in Ishii Co., Ltd. Inventor Toshinori Fujii 5 Asahioka, Kannabe-cho, Shenzhen-gun, Hiroshima F-term in Ishii Co., Ltd. F-term (reference) 3E095 AA01 BA03 CA01 DA03 DA22 DA32 DA42 DA48 DA54 DA83 DA85 EA02 EA09 EA13 EA22 EA26 EA34 FA12 FA13

Claims (9)

[Claims] 1. A supply reel on which a label sheet in which a number of labels having an adhesive on the back surface are temporarily attached to a long base sheet is wound, and the label is peeled from the label sheet pulled out from the supply reel. A take-up reel for taking up a base sheet; a label sheet peeling means disposed between the supply reel and the take-up reel; and a reciprocating operation between a work sticking position disposed above the label sheet peeling means. An automatic label sticking apparatus having a possible suction head, wherein the label sucked by the suction head and transferred to the work sticking position is sequentially pressed from one end to the other end of the label and attached to the work. An automatic label sticking device, comprising a pressing means. 2. The method according to claim 1, wherein the pressing means is disposed on a side opposite to a moving direction of the suction head, and presses and affixes the label to the work sequentially from a rear end side to a front end side. The automatic labeling device according to claim 1. 3. The method according to claim 1, wherein the pressing means is disposed on the front side in the traveling direction of the suction head, and presses and attaches the label to the workpiece sequentially from the front end side to the rear end side. The automatic labeling device according to claim 1, wherein 4. The automatic label sticking apparatus according to claim 1, wherein said pressing means is a pressing roller. 5. The automatic label sticking apparatus according to claim 4, wherein said pressing roller has a notch in a part in a circumferential direction. 6. A lower part of the traveling path of the suction head,
2. A sensor for detecting a position and a posture of the label sucked by the suction head is arranged.
6. The automatic label sticking apparatus according to any one of claims 5 to 5. 7. The automatic label sticking apparatus according to claim 1, wherein said suction head is attached to a control mechanism for controlling a position and a posture by a label detection output by said sensor. apparatus. 8. The base sheet to which the label is attached,
A sprocket hole is provided at regular intervals along at least one side end in the longitudinal direction.
The automatic label sticking apparatus according to any one of the above. 9. A suction head position detection sensor for detecting that the suction head is located above the label sheet peeling member, above the sensor, and above the work sticking position. 9. The automatic label sticking apparatus according to any one of 1 to 8.