JPH10338217A - Labeling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent, relating to a labeling device designed to affix at a varied angle with respect to an article a label held on an attracting head, the label from falling off from the head while the head is turned to vary the angle. SOLUTION: A belt 13 is run by a servomotor 11 in a manner of lifting and lowering a head 32 held by a rod 27. In the head 32, a fan set 33 is placed, actuation of which makes it produce suction force for attracting a label L at an opening 34b in the lower side 32b of the head. During the time that the fan is producing this suction force the head 32 is turned by a specified angle and the head 32 is lowered to affix the label L on an article. The label L, while turning, can be kept attracted to the head 32 by the suction force and can be prevented from falling off. The label L can be affixed to the article in a state of having been tuned by the specified angle with respect to the article.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label sticking apparatus, and more particularly to a label sticking apparatus configured to change a label sticking angle to a product.

[0002]

2. Description of the Related Art Generally, in a backyard of a supermarket or the like, a label sticking apparatus for automatically sticking a priced label on which a product name, price, expiration date and the like are printed to a packaged product is transported by, for example, a transport conveyor. A label suction head that is disposed above a product to be printed and that suctions a label fed from a label issuing port of a label printer that prints and issues the priced label by a negative pressure, and suction of a blower or the like that generates the negative pressure. And a drive device for moving the head forward and backward with respect to the product. When the suction head is advanced relative to the product, the label held by the head is pressed against the product and affixed thereto. Although it is configured as such, the direction of the label fed out from the label issuing port and the direction of the product conveyed on the conveyor,
Usually, since both are fixed, it is not possible to affix this label to the product at various angles such as vertical, horizontal and oblique.

[0003] Japanese Patent Application Laid-Open No. 63-272649 discloses a technique in which the label suction head is rotated around its descending axis while moving forward (downward) toward a product. According to this, the suction head is spirally turned, and the label held by the head is attached to the product at different angles.

[0004]

However, in the apparatus disclosed in the above publication, a blower constituting a suction machine is fixed at a predetermined position inside the sticking device, and the suction port of the blower retracts the suction head from the product. Then, when the label is lifted to the position for receiving the label from the label issuing port, the label is closed by the suction head, whereby the suction force for suctioning the label to the head acts strongly, while the head moves the product on the conveyor. When the head is lowered toward the head, a distance is formed between the head and the suction port, and the suction force is weakened. Thus, the label does not remain on the head, and the label is securely attached to the product. If the label suction head is rotated while being lowered, the label suction force is reduced during the rotation, and the label may fall off the head.

In view of the above, the present invention addresses the above-described disadvantages in a label sticking apparatus in which a suction head for sucking a label with a negative pressure is rotated in order to change a sticking angle of the label to a product. It is an object to prevent the label from falling off the head even during rotation.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is characterized by having the following configuration.

First, the invention according to claim 1 (hereinafter referred to as "first invention") in the claims of the present application comprises a label suction head for suctioning a label fed from a label issuing port by negative pressure, A suction device that generates a negative pressure, a label sticking device provided with a reciprocating drive unit that advances and retreats the head with respect to the product so that the label adsorbed on the head is affixed to the product, When the suction device is provided separately from the label suction head, and the head is at the label receiving position, the suction head and the suction device come close to each other and a negative pressure for label suction acts on the head, When the suction head advances with respect to the product, the suction head and the suction device are separated from each other, so that the negative pressure in the head is reduced. Rotating means for rotating about the advancing / retreating axis is provided, and the rotating means is configured to rotate the suction head while the suction head is in proximity to the suction device. It is characterized by.

Further, the invention according to claim 2 (hereinafter referred to as “second
Invention ". ) Has a label suction head for sucking a label fed from a label issuing port by negative pressure, as in the first invention, and a suction machine for generating the negative pressure,
What is claimed is: 1. A label sticking apparatus provided with forward / backward driving means for advancing and retreating a head to and from a product so that a label sucked on the head is stuck to the product, wherein the suction device is provided integrally with a label suction head. , At least when the head is at the label receiving position, the head is operated so that a negative pressure for label suction is applied to the head, and the label suction head is rotated about the axis of advance and retreat with respect to the product. Rotating means is provided for rotating the head while the suction machine is operating.

By using the above means, each invention of the present application operates as follows.

In other words, in both of the first and second aspects of the invention, in order to change the sticking angle of the label on the product, a rotating means for rotating the head which has absorbed the label is provided. When the head is rotated by the moving means, the negative pressure generated by the suction device does not decrease, so that the label is prevented from falling off the head when the suction head rotates.

In this case, according to the first invention, as disclosed in the above publication, the suction device is provided separately from the label suction head, and the suction head is connected to the suction device at the label receiving position. When approaching the head, a negative pressure acts on the head for adsorbing the label, while the suction head advances toward the product for sticking the label, and when moving away from the suction machine, the negative pressure decreases. In this configuration, the head is rotated during a period in which the suction head is at the label receiving position and is close to the suction device. Therefore, when the head is rotated, the head is generated by the suction device. Since the negative pressure does not decrease, the label is prevented from falling off.

On the other hand, according to the second aspect of the present invention, the suction device is provided integrally with the label suction head, and when at least the head is at the label receiving position, the suction device is operated to apply a negative pressure to the suction head. In the apparatus configured to operate, the rotating means rotates the head during a period in which the suction machine is operating. Therefore, when the head is rotated, suction is performed similarly to the first invention. Since the negative pressure generated by the machine does not decrease, the label is prevented from falling off.

Further, according to the second aspect of the present invention, it is possible to apply a negative pressure to the suction head at a desired time by operating the suction device, so that the rotation of the head is limited to the vicinity of the label receiving position. Nothing.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, in this embodiment, a label sticking apparatus 1 according to the present invention is disposed above a conveyor C for conveying a weighed and packaged product X to a predetermined shipping station. A label L with a price fed out and issued from a label issuing port W of an adjacent label printer 2 is received by a suction head 32 described later, and is attached to a product X on a conveyor C below.

Inside the label printer 2, a roll 3 of a label sheet S in which a number of labels L...
While the label sheet S pulled out from the printer is guided by the plurality of guide rollers, predetermined print information is printed on the label L while passing between the thermal print head 4 and the platen roller 5, and the peeling rod at the label issuing port W The printed label L is peeled off from the backing sheet B by being bent at a steep angle in 6. The label L peeled off at the peeling point P is protruded and supplied to the adhering device 1 by the movement of the backing sheet B, and only the backing sheet B is wound up by the collection roll 7.

Next, the configuration of the label attaching apparatus 1 will be described in detail. As shown in FIGS. 2 and 3, the label sticking apparatus 1 has a rectangular cylindrical main body frame 10 extending in a vertical direction, and a servomotor 11 is attached to an upper portion of a front vertical wall 10 a of the frame 10. . Same front vertical wall 10a
Are provided with a pair of upper and lower timing pulleys 12a and 12b rotatably, respectively.
A timing belt 13 is wound between a and 12b. Rotation support shaft 12c of upper timing pulley 12a
A large-diameter driven pulley 14 is connected to the outside of the vertical wall 10a.
A transmission belt 16 is wound around a driving pulley 15 provided on the output shaft 11a of the motor 11, and the pair of upper and lower pulleys 12a, 12b are driven by the rotation of the motor 11 in forward and reverse directions (directions of arrows a and b). Of the timing belt 13 travels in the vertical direction.

In the timing belt 13, an arm member 17 is fixed to the running surface 13a on the left side of the pulleys 12a and 12b, and a support plate 18 having a plurality of horizontal walls is connected to the arm member 17. The support plate 18 includes a first horizontal wall portion 18a to which the arm member 17 is fastened, a second horizontal wall portion 18b one step lower than the first horizontal wall portion 18a on the front side, and a first horizontal wall portion. And a third horizontal wall portion 18c that is one step lower on the right side than the first horizontal wall portion 18a.
8c a pair of front and rear slide rods 1 extending vertically
The upper ends of 9 and 19 are fixed. The slide rods 19, 19 are attached to the right side vertical wall 10b of the main body frame 10.
U-shaped support block 20 attached to the lower part of
The lower plate 21 having a single horizontal wall portion is bridged between the lower end portions thereof as shown in FIG. Have been. Thereby, the timing belt 1
3 supports the support plates 1
8, slide rods 19, and lower plate 21
(Hereinafter, appropriately referred to as “elevating unit U”) ascend and descend together.

Further, timing pulleys 22, 22 are rotatably provided on the third horizontal wall portion 18c of the upper support plate 18 and the lower plate 21 at positions between the slide rods 19, 19, respectively. A second timing belt 23 is wound around these pulleys 22,22. In the timing belt 23, a connecting arm 24 extending below the first horizontal wall portion 18a of the support plate 18 is fixed to a traveling surface 23a on the left side of the pulleys 22, 22, and a traveling surface 2a on the right side.
3b is fastened to the inner surface 20b of the support block 20. As a result, the timing pulleys 22 move up and down as a result of the lifting unit U moving up and down. A part of the timing belt 23 wound between these pulleys 22 and 22 moves toward the frame 10 side. By being fixed, the second timing belt 2
3, the left traveling surface 23a is at the elevation speed 2 of the elevation unit U.
The connecting arm 24 fixed to the belt 23 moves up and down at twice the moving distance of the lifting unit U with respect to the main body frame 10.

In the elevating unit U, a top plate 26 is provided on the first horizontal wall portion 18a of the upper support plate 18 through columns 25... 25, and a support rod extending vertically to the top plate 26 and the support plate 18 is provided. Upper portions 27 are rotatably supported, and a large-diameter driven pulley 28 is integrally provided on the support rod 27 between the top plate 26 and the support plate 18. on the other hand,
A stepping motor 29 is attached to the lower surface of the second horizontal wall portion 18b of the support plate 18 (see FIG. 6), and a drive pulley 30 provided on an output shaft 29a projecting upward from the second horizontal wall portion 18b. The second transmission belt 31 is wound between the driven pulley 28 and
The forward and reverse rotation of the motor 29 causes the support rod 27 to rotate around its vertical axis as shown by arrows c and d.

At the lower end of the support rod 27, a label suction head 32 for receiving a label L fed out and issued from an issuing port W of the printer 2 is attached.
The suction head 32 has a box shape having an upper surface 32a to which the support rod 27 is connected, a lower surface 32b that is partially inclined, and one open side surface 32c, and a blower is provided through the open surface 32c. As shown in FIG. 4, a pair of elongated elliptical openings 34 are formed on the upper surface 32a and the lower surface 32b with the connecting portion of the support rod 27 interposed therebetween.
a, 34a; 34b, 34b are formed corresponding to each other. The upper surface 32a is a cover in which a plurality of (a pair of three in the illustrated example) circular openings 35a... 35a located in these elliptical openings 34a, 34a; A member 35 is attached. When the fan device 33 is driven by a motor (not shown), a negative pressure is generated in the internal space of the suction head 32, and a lower surface 32 b of the head 32 is formed.
A suction force is generated in the elliptical openings 34b, 34b of the label L.
Is sucked and held by the suction head 32.

On the other hand, the connecting arm 24 fastened to the double speed timing belt 23 has a horizontal support surface 24a located below the first horizontal wall portion 18a of the upper support plate 18 in the elevating unit U. On the surface 24a,
As shown in FIG. 5, a rotary block 36 having a cylindrical boss 36a is rotatably fitted in a horizontal plane via the boss 36a and a ring-shaped bearing 37. A screw portion 36b is formed at the upper end of the boss portion 36a, and a nut 38 is screwed into the screw portion 36b to prevent the rotation block 36 from dropping. A pair of linear bearings 39, 39 disposed opposite to each other are housed in the boss portion 36a, and the suction head 32 is connected to the first support plate 18 of the upper support plate 18 via these linear bearings 39, 39. A support rod 27 suspended from the horizontal wall portion 18a slidably passes through the rotating block 36. In this case, the support rod 27 has two concave grooves 27a, 27 corresponding to the linear bearings 39, 39.
When the support rod 27 is rotated by the rotation of the stepping motor 29 when the grooves 27a, 27a are fitted with the balls of the linear bearings 39, 39, the rotating block 36 is formed. Also pivots in a horizontal plane with respect to the connecting arm 24.

The rotary block 36 is formed with a flange 36c. The flange 36c has two rows of circular openings 3 corresponding to the circular openings 35a... 35a of the cover member 35 of the label suction head 32.
6d... 36d are arranged side by side, and upper end portions of a pair of push rods 40, 40 extending in the vertical direction respectively into a predetermined pair of openings 36d, 36d (openings 36d, 36d on the rightmost side in the drawing in the figure) in each row. Is inserted and bolt 4
1, 41 fixed. Push rod 40,
The lower end of 40 penetrates through the corresponding circular openings 35a, 35a (openings 35a, 35a closest to the fan device 33 in the illustrated example) in the cover member 35 of the suction head 32, and the elliptical opening 34a of the upper surface 32a of the suction head 32. , 34a and into the internal space of the head 32. And
At the lower ends of the push rods 40, 40, there are provided bellows members 42, 42 formed of a soft material such as silicone resin and having a structure capable of expanding and contracting in the vertical direction.

Next, the operation of the label sticking apparatus 1 will be described according to the label L sticking operation. In addition, the servomotor 11 that raises and lowers the lifting unit U is configured so that the lifting speed of the lifting unit U and the switching between lifting and lowering can be controlled in accordance with the magnitude and direction of the applied current. A stepping motor 29 for rotating the support rod 27 is provided on the second horizontal wall portion 18b of the upper support plate 18 via a bracket 43, and includes a photosensor 44 having a light emitting portion and a light receiving portion, and an output of the stepping motor 29. The rotation angle of the support rod 27 can be controlled via a rotary encoder formed integrally with the shaft 29a and formed by a light shielding plate 45 having a large number of light transmitting holes 45a... 45a. .

First, the label sticking apparatus 1 uses the label L
2, the lifting unit U is raised to an upper position in the frame 10, and the lower surface 32b of the suction head 32, which is connected to the lifting unit U by the support rod 27 and moves up and down integrally, is received as shown in FIG. It is located at substantially the same height as the peeling point P of the label L at the label issuing port W. At this time, the suction head 32 is rotated so that the lower surface 32b of the suction head 32 is positioned on the peeling point P side, and the fan device 33 is driven at least at this label receiving position, and the lower surface of the suction head 32 is rotated. At the elliptical openings 34b, 34b of 32b, a suction force acting inside the head 32 is generated.

In this state, the printed label L is peeled off from the backing sheet B at the above-mentioned peeling point P, is fed out along the inclination of the lower surface 32b of the suction head 32, and is finally separated from the backing sheet B. The label L is sucked and held by the suction head 32 without falling off by the suction force generated in the elliptical openings 34b, 34b of the lower surface 32b by the driving of the lower surface 32b.

Next, the elevating motor 11 is driven to rotate in the direction of the arrow a shown in FIG. 2, and the running surface 13a of the elevating belt 13 to which the elevating unit U is connected is moved downward. As a result, the elevating unit U descends with respect to the main body frame 10 and the first horizontal wall portion 18a of the upper support plate 18 in the unit U causes the support rod 27 to move downward.
The label suction head 32 suspended through the head also descends integrally, and the label L held by the head 32 is held.
Approaches toward the product X on the conveyor C below.

On the other hand, a pair of upper and lower timing pulleys 2 provided on the third horizontal wall portion 18c of the upper support plate 18 and the lower plate 21 of the lifting unit U, respectively.
2, 22 also descend with the unit U. But,
At this time, the timing belt 23 wound between the pulleys 22 and 22 is fixed to the main body frame 10 via the support block 20 so that a part of one of the running surfaces 23 b is fixed to the belt 23. The connecting arm 24, which is connected to the other running surface 23a of the motor 23 and supports the rotary block 36 or the push rods 40, 40, moves at a speed equal to the speed at which the lifting unit U or the suction head 32 descends with respect to the main body frame 10. Therefore, with respect to the main body frame 10, the connection arm 24 is connected to the lifting unit U or the suction head 32.
Descend at twice the speed of In other words, the suction head 32
Is lowered by a predetermined distance from the first label receiving position, the push rods 40, 40 are lowered by twice the distance, and approach the product X below the suction head 32 more quickly.

As a result, as the suction head 32 is lowered, the push rods 40, 40 are lowered with a stroke twice that of the head 32, and are located in the internal space of the suction head 32 at the label receiving position. The rod 40,
As shown in FIG. 6, the lower end portion of the label 40 finally projects downward from the lower surface 32b of the head 32 via elliptical openings 34b, 34b, and the label L sucked and held on the lower surface 32b is attached to the rod 40, 40 bellows members 42, 4 at lower end
The label L is pushed out toward the product X below by the label 2 and the label L is attached to the upper surface of the product X.

At this time, the bellows members 42, 42 expand and contract in the vertical direction when they come into contact with the product X and absorb the shock of the contact, but the contact between the bellows members 42, 42 and the product X causes Push rods 40, 40 to which the bellows members 42, 42 are attached, or a rotary block 3 for supporting the push rods.
6 and the connecting arm 24, an upward drag is generated with respect to the descending movement, and this drag is further passed through the second timing belt 23 and the lifting unit U, and finally the output shaft 11a of the lifting servomotor 11 The motor 11
Appears as a driving load.

When such a driving load appears on the elevating servomotor 11 during the lowering of the elevating unit U, it is determined that labeling has been completed, and the motor 1
1 is driven to rotate in the reverse direction as shown by the arrow b in FIG.
In the elevating belt 13, the traveling surface 13a to which the elevating unit U is connected is caused to travel upward. As a result, the lifting unit U and the label suction head 32 or the push rods 40, 40 start to move upward, and at this time, the push rods 40, 40 rise at twice the speed of the suction head 32, and the bellows members 42, 42 Is again housed in the head 32, and the drive of the servomotor 11 is stopped when the suction head 32 rises to the first label receiving position.

As described above, in the label sticking apparatus 1 according to this embodiment, the label suction head 32 and the push rods 40, 40, which make relative movements at different speeds, share a single drive source (a servo for ascending and descending). The push rods 40 are moved up and down by the motor 11), and in this case, the push rods 40, 40, which are relatively small and light in weight as compared with the large label suction head 32 including the fan device 33, are twice as fast as the head 32. Or the rods 40, 40 protrude from the lower surface 32b of the head 32 before the lower surface 32b of the head 32 lowers to the height of the upper surface of the product X.
Since the bellows members 42 at the lower end reach the upper surface of the product X and the label L is applied, it is necessary to lower the entire large label suction head 32 from the label receiving position to the height of the upper surface of the product X. As a result, the power consumption of the elevating motor 11 can be reduced.

The label L is formed of a flexible material,
Since the bellows members 42, 42 having a structure capable of expanding and contracting in the vertical direction are pressed and attached to the product X, the lower surface 32b of the suction head 32 having no such configuration is directly pressed against the product X to apply the label L. Compared to pasting,
The pressing force applied to the product X for sticking a label is absorbed and reduced, and damage to the product X is suppressed.

The fan device 33 is driven to attract the label L to the head 32 at least at the time of receiving the label L. However, the fan device 33 is driven at other times such as when the suction head 32 is lowered. The driving of 33 may be stopped. This is because the suction force does not immediately decrease even when the fan device 33 is stopped, and the label L is unlikely to fall off due to the subsequent downward movement of the head 32. In that case, it goes without saying that the power consumption for driving the fan device 33 can be reduced.

In the above description, the label L issued from the label printer 2 is affixed to the commodity X below in the attitude at the time of the issuance. In some cases, the label L needs to be attached to the product X at different angles, such as a vertical position, a horizontal position, an oblique position, or the like, depending on the transport position, the customer's request, or the like. Next, a case where the sticking angle of the label is changed will be described.

First, at the label receiving position, as shown in FIG. 2, as shown in FIG. 2, the suction head 32 has its lower surface so that the label L fed out and supplied from the label printer 2 can be smoothly captured. 32b is rotated so that the inclination of the head 32b is located on the peeling point P side, and the fan device 33 is driven to drive the lower surface 32b of the head 32.
A suction force for label suction is generated in the elliptical openings 34b, 34b.

When the printed label L is sucked and held by the suction head 32 at the label receiving position, the stepping motor 29 is driven to rotate clockwise in FIG. 3, for example, while the fan device 33 is driven. Then, the support rod 27 is rotated by a predetermined angle in the direction of arrow c shown in FIG. 3 via the rotary encoder constituted by the photosensor 44 and the light shielding plate 45 described above.

As a result, as shown by a chain line in FIG. 4, the suction heads 32 supported by the support rods 27 are integrally rotated in the same direction by the same angle (about 135 ° in the illustrated example). Similarly, the label L adsorbed by 32 also rotates by the same angle about its vertical axis with respect to the commodity X below. Further, with the rotation of the support rod 27, the rotary block 36 through which the rod 27 is inserted moves the linear bearings 39, 39 and the concave grooves 27a,
The push rods 40 and 40 mounted on the block 36 also rotate by the same angle in the same direction via the 27a and the same direction.

Then, in this state, as described above,
By lowering the suction head 32 and the push rods 40, 40 toward the product X by the lifting motor 11, the bellows members 42, at the lower end portions of the push rods 40, 40 that move down at twice the speed of the suction head 32. 42 is product X
, Whereby the label L is affixed to the product X at the rotation angle.

Thereafter, the lifting motor 11 is rotated in the reverse direction to raise the suction head 32 and the push rods 40 and 40 again to the label receiving position, and the stepping motor 29 is rotated counterclockwise in FIG. Then, the support rod 27 or the suction head 32 and the push rods 40, 40 are rotated in the direction of arrow d shown in FIG. At this time, the rotation of the head 32 and the like to the original position may be performed after the head 32 has been raised to the label receiving position, or may be performed while being raised.

As described above, the stepping motor 2
9, the label L issued from the printer 2 can be attached to the product X in a posture rotated in a range of 360 °. The label L can be attached in a desired posture such as attachment.

The rotation of the suction head 32 or the like for changing the sticking angle of the label L is performed at the label receiving position where the suction force is always generated in the head 32 to capture the label L first. Since the suction is performed while the suction force is being generated, the label L is moved to the suction head 32 during the rotation.
, And also is prevented from dropping out due to inertia due to inertia due to a shock when the rotation is stopped.

In this label sticking apparatus 1,
A fan device 33 is built in the suction head 32. By operating the fan device 33, suction for label suction is performed on the head 32 at any desired time regardless of the position of the head 32 being raised or lowered. Since the configuration is such that a force can be generated, not only does the label L rotate at the label receiving position as in the above example, but also during the period from when the label L starts descending to when the label L is applied. Alternatively, while the fan device 33 is operated, the support rod 27 may be rotated to rotate the suction head 32, the push rods 40 and 40, and the label L at a predetermined angle.

As another configuration of the label sticking apparatus 1, as shown in FIG. 3, a locking member 51 having a horizontal surface 51a is attached to the upper support plate 18 of the lifting unit U, Frame 1
0 is provided with a solenoid 52 for moving the rod 52a up and down. Also, the main body frame 1
0, an L-shaped lever 53 is provided rotatably about a support shaft 53a, and one end of the lever 53 is connected to the distal end of the rod 52a.
At the other end of 3, a stopper member 54 that supports the horizontal surface 51 a of the locking member 51 from below is attached. The label attaching apparatus 1 is designed to power off the entire apparatus with the elevating unit U raised, and at this time, the solenoid 52 is operated, and the stopper member 54 engages the locking member 51. Is supported from below to prevent the lifting unit U from falling by its own weight.

The cover member 35 of the suction head 32 and the flange 36c of the rotary block 36 have circular openings 35a through which push rods 40 are inserted, respectively.
Since a plurality of 5a, 36d... 36d are provided, the push rods 40, 40 for extruding the label L downward and sticking it to the product X according to the size of the label L to be issued and the like.
Can be changed.

Further, as the control of the rotation angle of the support rod 27, a method of controlling based on the rotation origin sensor formed by the photo sensor and the light shielding plate and the number of pulses applied to the stepping motor is used. May be used.

[0047]

As described above, according to the present invention,
In order to change the sticking angle of the label to the product, when rotating the head that has sucked the label, the negative pressure or suction force generated in the head is not reduced. The label is prevented from coming off from the head and falling off during operation.

[Brief description of the drawings]

FIG. 1 is a front view showing an arrangement position of a label sticking apparatus according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view showing the internal configuration of the label sticking apparatus.

FIG. 3 is a partially cutaway plan view of the label sticking apparatus.

FIG. 4 is a plan sectional view taken along the line AA in FIG. 2;

FIG. 5 shows a support rod for supporting the label suction head,
FIG. 6 is an enlarged vertical sectional view showing a structure in which a rotary block supporting a push rod is relatively movable in an axial direction and is integrally rotated around an axis.

FIG. 6 is a partially cutaway front view showing a sticking operation by the label sticking apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Label sticking apparatus 10 Main body frame 11 Elevating servomotor 13 Elevating belt 18 Support plate 20 Support block 23 Double speed belt 29 Rotating stepping motor 32 Label suction head 33 Fan device 34b Head lower elliptical opening 36 Rotating block 40 Push rod 42 Bellows member X Product L Label

Claims (2)

[Claims] 1. A label suction head for sucking a label delivered from a label issuing port by a negative pressure, and a suction machine for generating the negative pressure, so that the label sucked by the head is attached to a product. A label sticking apparatus provided with a reciprocating drive means for moving the head forward and backward with respect to the product, wherein the suction device is provided separately from the label suction head,
When the head is at the label receiving position, the suction head and the suction device come close to each other, and a negative pressure for label suction acts on the head. And a suction device are separated from each other so that the negative pressure in the head is reduced, and rotation means for rotating the label suction head about an advance / retreat axis with respect to the product is provided. But,
A label sticking apparatus, wherein the head is rotated while the suction head and the suction device are close to each other. 2. A label suction head for sucking a label fed from a label issuing port by a negative pressure, and a suction machine for generating the negative pressure so that the label sucked by the head is attached to a product. A label sticking apparatus provided with a reciprocating drive means for reciprocating the head with respect to the product, wherein the suction device is provided integrally with the label suction head,
At least when the head is at the label receiving position, the head is operated so that a negative pressure for label suction is applied to the head, and the label suction head is rotated about an axis of advance and retreat with respect to the product. A label sticking apparatus, characterized in that a rotating means is provided, and the rotating means is configured to rotate the head while the suction machine is operating.