JP5351577B2 - Labeling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a labeller which can effectively apply labels on an adherend without applying a plurality of overlapping labels on the adherend. <P>SOLUTION: A suction pad 18a has a rectangular suction surface 21 which temporarily sucks and holds labels L fed out by the suction of air. The labeller applies the labels L sucked and held on the adherend by advancing the suction pad 18a towards the adherend. The suction surface 21 has a front end side which receives labels L that are fed out and a rear end side which is formed opposite to the front end side. When the label L which is brought into contact with the suction surface 21 is pushed out by the next label, an overrun sensor 24 which detects the forced out label L is provided near the rear end side. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

The present invention relates to a label affixing device, comprising a suction plate having a suction surface for temporarily sucking and holding a fed-out label by suction of air, and advancing the suction plate toward the adherend to place the label on the adherend. The present invention relates to a labeling device to be attached.

A conventional label sticking apparatus will be described with reference to FIG.
The label sticking device 50 is supported by a gantry (not shown), and includes a printer unit 51 and a label sticking unit 52. A conveyor C is disposed below the label sticking device 50 and can be driven to convey the adherend B in the direction of arrow F (from right to left in FIG. 6).

The printer unit 51 includes a paper supply unit 2, a winding unit 5, a pitch sensor, a printing unit, and a peeling unit (not shown).
The supply unit 2 is provided with a supply shaft 7 that rotatably holds a roll-shaped label continuous body P obtained by rolling a label continuous body P in which a plurality of labels L are temporarily attached to a belt-like mount D at predetermined intervals. Yes.
A pitch sensor (not shown) has a detection mark formed on the belt-like mount D at the same pitch as that of the label L, and a print position for printing on the label L in the printing unit so as to detect this detection mark. The reference position can be used. The printed label L is peeled off from the belt-like mount D by a peeling portion (not shown), and is temporarily held by suction on an adsorbing body 55 described later.
The take-up unit 5 is provided with a take-up shaft 14 for taking up the strip-shaped mount D after the label L is peeled off.

The label sticking part 52 includes an air cylinder 53 and an adsorbing body 55.
The air cylinder 53 includes a rod 54 that can be moved forward and backward, and an adsorbent 55 is provided at the tip of the rod 54.
The adsorbent 55 has an adsorbing surface 56 on which the label L can be adsorbed by sucking air, and the label L peeled off from the belt-like mount D at the peeling portion can be temporarily adsorbed on the adsorbing surface 56.

Label L sucked by the suction surface 56 is affixed by pressing the label adsorber 55 is moved downward by the rod 54 of the air cylinder 53 is advanced toward the adherend B to the adherend B be able to.

However, the pitch sensor itself may deteriorate in accuracy due to long-term use or detection accuracy may deteriorate due to dust or the like, and may cause a reading defect of the detection mark on the belt-like mount D.
When a detection mark reading failure occurs, a plurality of labels L,... L are transferred to the adsorbent 55, the first label L is pushed out, and then the first label and the next label overlap with each other. It is adsorbed by the adsorption surface 56.
When a bar code or a two-dimensional code is printed on the label L, a bar code provided downstream of the label sticking device 50 by sticking a plurality of labels L to L to the adherend B There is a problem in that the reading operation cannot be performed by the scanner that reads the image, a reading failure occurs, the conveyor C stops, and the labeling operation is interrupted. In addition, there is a problem that a great amount of work such as removal of the label L that is stuck to the adherend B and overlapped is increased.

  Patent Document 1 discloses a label suction sticking device in which a label detection sensor that detects the presence or absence of a label is provided on the entry side of a label on a suction surface that sucks a label on a suction disk.

JP-A-9-104426

The present invention has been made in view of such problems, and an object of the present invention is to provide a label affixing device that does not affix a plurality of overlapping labels to an adherend.
It is another object of the present invention to provide a label sticking device that can prevent unnecessary work such as removal of a label stuck to an adherend and efficiently stick a label to the adherend.
It is another object of the present invention to provide a label sticking device that does not complicate the structure of the suction disk.

The present invention has focused on the attracting surface for attracting a label, the gist of the invention according to claim 1, the holding means having a suction Chakumen you once sucked and held by suction the label of air to be fed, the A cylinder for attaching the label held and attracted and held toward the adherend to the adherend , in the label sticking apparatus, wherein the suction surface has a front end side for receiving the fed label. , anda rear end side is formed to face the front side, that Rutotomoni provided near the rear end side, the first label being in sliding contact with the said suction surface is pushed to the next label The label detection means for detecting the first label by means of the above and the sticking confirmation means for detecting whether or not the label held by adsorbing and holding the holding means advanced toward the adherend is pressed against the adherend. in form, wherein If the first label is brought into sliding contact with the wear surface is pushed to the next label is in the label sticking apparatus which is characterized in that so as to stop the operation of the cylinder.
According to a second aspect of the present invention, there is provided a label affixing device according to claim 1, further comprising an alarm generation unit that generates an alarm when the label detection unit detects an initial label. There is .

Labeller of the present invention, the labels fed out without being adsorbed to the position of the predetermined suction surface, is Dasa push the next label when being excessively unwound, avoiding the operation of the air cylinder is determined to be abnormal Since the label adsorbed by the suction disk is not attached to the adherend, it is possible to prevent a plurality of overlapping labels from being attached to the adherend.
In addition, it is possible to prevent the work such as removal of a plurality of overlapping labels attached to the adherend and efficiently attach the label to the adherend.
Furthermore, since a plurality of sensors are integrated, the structure of the suction cup is not complicated, and the sensor wiring process can be prevented from becoming complicated.

It is the schematic block diagram which showed an example of the label sticking apparatus of this invention. It is a principal part block diagram explaining the adsorption body from the advancing direction of a label same as the above. (A) It is explanatory drawing from the adsorption | suction surface side of the state by which the label was adsorb | sucked normally. (B) It is explanatory drawing from the adsorption | suction surface side of the state which several labels extended. It is a block diagram explaining the control part of a label sticking apparatus. It is explanatory drawing explaining a flowchart. It is explanatory drawing explaining the conventional label sticking apparatus.

An embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as the past, and description is abbreviate | omitted.
FIG. 1 is a schematic configuration diagram illustrating an example of a label sticking device of the present invention, FIG. 2 is a main configuration diagram illustrating an adsorbent from the direction of travel of the label, and FIG. It is explanatory drawing from the adsorption | suction surface side of the state attracted | sucked to (2), (b) is explanatory drawing from the adsorption | suction surface side of the state which several labels extended.

The label sticking apparatus 1 mainly includes a supply unit 2, a printing unit 3, a peeling unit 4, a winding unit 5, and an adsorption pasting unit 6.
In addition, a conveyor C is disposed below the label sticking device 1, and the adherend B is provided in the direction of arrow F <b> 1 (from right to left in FIG. 1) by driving the conveyor C.
The supply unit 2 is provided with a supply shaft 7 that rotatably holds a label continuous body P that is a roll of a label continuous body P in which a plurality of labels L are temporarily attached to the belt-like mount D at predetermined intervals. Yes.
The label continuum P held on the supply shaft 7 can be fed out to the printing unit 3 via the guide rollers 8 and 8. The label L is made of paper, and has a thermosensitive coloring surface having a thermosensitive coloring layer that forms a thermosensitive color by the heating action of a heating element (not shown) of the thermal head 10 described later on one side, and an adhesive ( (Not shown) has a coated adhesive surface.

On the strip-shaped mount D, the adhesive surface of the label L is temporarily attached to a release surface on which a release agent (not shown) such as silicone is applied.
In addition, a plurality of labels L are temporarily attached to the belt-like mount D at a predetermined interval, and a reference mark (black rectangular shape) (not shown) is provided at approximately the same interval as the interval between the label L and the label L being temporarily attached. Mark) is formed on the back surface of the belt-like mount L (the opposite surface to which the label L is temporarily attached).

The printing unit 3 is provided with a platen roller 9 and a thermal head 10, and the thermal head 10 is provided so as to be able to contact with and separate from the platen roller 9.
The platen roller 9 is connected to a stepping motor 34, and the platen roller 9 is rotatably driven by the driving of the stepping motor 34.
The label continuum P is sandwiched between the platen roller 9 and the thermal head 10, and the platen roller 9 is driven by a print command from a control unit 30 described later, and the thermal head 10 selectively selects a heating element (not shown). The heat-sensitive coloring layer is colored on the printing surface of the label L, and visual information such as characters, symbols, and barcodes can be printed.

The peeling unit 4 is provided on the downstream side in the transfer direction of the label continuum P of the printing unit 3, and has a peeling plate 11 having a sharp tip formed at the tip, and the strip-shaped mount D is removed from the transferred label continuum P. It is folded at the tip of the peeling plate 11 so that the rigid label L is peeled off from the belt-like mount D.
The label L peeled off by the peeling plate 11 is sucked by the negative pressure of air to the suction surface 21 formed on the suction body 18 of the suction sticking portion 6 described later.

Further, the belt-like mount D that is turned by the peeling plate 11 is transferred to the winding unit 5 via the guide roller 12 and the pulling unit 13.
The winding unit 5 includes a rotatable winding shaft 14 that winds the belt-like mount D. A stepping motor 36 is connected to the winding shaft 14, and by driving the stepping motor 36, the winding shaft 14 can be rotationally driven to wind the belt-like mount D.
The traction unit 13 includes a driving roller 15 that rotates synchronously by driving a stepping motor 36 via a timing belt (not shown), and a driven roller 16 that rotates freely. The driving roller 15 and the driven roller 16, the belt-like mount D can be pulled and guided to the winding shaft 14.

A pitch sensor 17 is disposed below the transfer path of the label continuum P between the printing unit 3 and the supply unit 2. The pitch sensor 17 emits light (not shown) that emits predetermined light and light reflected from the belt-like mount D as light emitted from the light emitting unit, and the intensity of the received light (the amount of light received per unit time). (Not shown) formed by printing or the like on the back surface of the belt-like mount D. The light-emitting portion and the light-receiving portion are arranged on the back surface side of the belt-like mount D. The mark is detected based on the amount of light received by the light receiving unit.
The pitch sensor 17 can supply the control unit 30 with reference data such as a printing reference position of the label L and a stop reference position of the label L on the peeling plate based on the detection result of the reference mark.

The suction sticking unit 6 includes an suction body 18 and a cylinder 19, and the suction body 18 is provided at the tip of the rod 20 of the cylinder 19.
Further, the cylinder 19 is between a label receiving position for receiving the label L adsorbed by the adsorbent 18 and a label applying position where the rod 20 advances downward and affixes the label L on the upper surface of the adherend B. A rod 20 is provided so as to be capable of moving back and forth so that it can reciprocate.

In the adsorber 18, an adsorbing plate 18a, an intermediate plate 18b, and a support plate 18c are arranged substantially in parallel.
The suction disk 18a has a hollow portion (not shown) and a suction surface 21 formed therein. The suction surface 21 is formed in a rectangular shape, and has a substantially planar shape so that the fed label L can be sucked and held.
In addition, a plurality of holes 22... 22 communicating with the hollow portion can be formed in the suction surface 21.
Further, an air pipe (not shown) connected to the hollow portion from a compressor such as a separate compressor via a solenoid valve (none shown) is provided on the suction plate 18a.
By switching the electromagnetic valve, air suction (negative pressure) and air blowing can be switched to the hole 22 of the suction surface 21.
At the label receiving position of the adsorbing body 18a, the label L fed from the peeling plate 11 can be switched to air suction and sucked.

A label confirmation sensor 23 and an overrun sensor 24 can be provided on the suction surface 21.
The label confirmation sensor 23 is provided with a light reflection type sensor, the label L is fed out from the peeling plate 11, and the leading end of the label L is embedded in the vicinity of the front end side 21a contacting the suction surface 21 of the suction disk 18a. .
Further, the label confirmation sensor 23 is fed out while being in sliding contact with the suction surface 21 (in the direction of arrow F2 in FIG. 3 (a)) for one label L (one-dot chain line in FIG. 3). It is possible to detect whether or not it is adsorbed by 21 and supply a signal to the control unit 30 described later.

The overrun sensor 24 is embedded in a substantially central portion in the vicinity of the rear end side 21 b corresponding to the opposite side of the front end side 21 a of the suction surface 21.
The overrun sensor 24 is provided with a light reflection type sensor, and when the pitch sensor 17 cannot read the reference mark, the first label L and the next label L1 (one-dot chain line in FIG. 3) are continuously fed out. (FIG. 3 (b) in the direction of arrow F2) When the first label L is pushed out to the position where the overrun sensor 24 is hidden by being pushed out to the next label L1, an error signal indicating that the label L has been detected is controlled. The unit 30 can be supplied.
Further, by the label L 1 is fed until the peeled label L and the label L1 becomes a state overlapping the suction surface 21.

An intermediate plate 18b is provided above the suction plate 18a with a predetermined interval.
A plurality of support shafts 27a... 27a are provided between the suction plate 18a and the intermediate plate 18b, and coil springs 27b... 27b are fitted into the respective support shafts 27a to separate the suction plate 18a and the intermediate plate 18b from each other. It is biased and held in the direction.
Further, when the suction plate 18a moves downward and the suction plate 18a presses the adherend B, the suction plate 18a and the intermediate plate 18b move along the support shaft 27a against the bias of the coil spring 27b. It is possible to move in the approaching direction.
Further, a support plate 18c is provided above the intermediate plate 18b at a predetermined interval.
A plurality of support shafts 28a... 28a are provided between the intermediate plate 18b and the support plate 18c, and a predetermined interval can be maintained. Further, the rod 20 of the air cylinder 19 is fixed to the upper surface of the support plate 18c via the mounting plate 28b.

Moreover, the composite sensor part 26 can be provided in the adsorption body 18a.
The composite sensor unit 26 can be provided with a vertical shaft 26 a, an overrun sensor 24, and a proximity sensor 25. One end of the mounting shaft 26a is vertically planted from the upper surface side (surface opposite to the suction surface) of the suction disk 18a, and the overrun sensor 24 is provided at one end thereof.
The vertical shaft 26a passes through the intermediate plate 18b, and the other end is located between the intermediate plate 18b and the support plate 18c. A proximity sensor 25 is provided at the other end.
The proximity sensor 25 can detect the support plate 18 c and can detect the support plate 18 c and supply a detection signal to the control unit 30 when the proximity sensor 25 approaches the support plate 18 c.

Next, the block diagram of the control part 30 of the label sticking apparatus 1 is demonstrated based on FIG.
The control unit 30 operates in accordance with a ROM (read only memory) 32 that stores a predetermined control program, a control program stored in the ROM 32, and a CPU (central processing unit) 31 that controls each unit, and a CPU 31 operates. A RAM (Random Access Memory) 33 for storing various data necessary for the above, a platen control circuit 35 for supplying a pulse signal to the stepping motor 34 and rotating the stepping motor 34 to drive the platen roller 9; Under the control of the CPU 31, a pulse signal is supplied to the stepping motor 36 that winds the belt-like mount D, and the stepping motor 36 is driven to rotate to rotate the winding shaft 14. ,mark A control signal corresponding to print data such as characters, figures or barcodes to be generated is generated and supplied to the thermal head 10 to perform a print operation, and a light emitting unit of the paper sensor 17 under the control of the CPU 31. Paper sensor control circuit 39 that emits light, receives an electrical signal output from the light receiving unit, and supplies the reference mark to the CPU 31 as detection data, error signals of various sensors, error signals such as out of paper Is provided to the alarm generation unit 40, and an alarm control circuit 41 for notifying abnormality by sound (alarm) or sound is provided.

Moreover, the function setting of the label sticking apparatus 1, the input of printing information, the input part 43 which inputs, such as cancellation | release of the alarm generation part 40, and the information input by the input part 43 are supplied to CPU31, Based on input information, Necessary information can be displayed on the display unit 44 via the interface 42.
A signal indicating whether or not the label L from the label confirmation sensor 23 provided on the suction board 18a has been sucked can be supplied to the CPU 31 via the interface 45.

A signal indicating whether or not the label L has overrun at a predetermined timing from the overrun sensor 24 can be supplied to the CPU 31 via the interface 45.
Further, a signal indicating whether or not the suction plate 18 a has pressed the adherend B from the proximity sensor 25 can be supplied to the CPU 31 via the interface 45.
Further, an interface 46 that supplies a signal from the object detection sensor 29 provided on the side of the conveyor C to the CPU 31 is provided.

Next, a flowchart is demonstrated based on FIG.
In step S1, it is determined whether or not the object detection sensor 29 has detected the adherend B conveyed by driving the conveyor C.
If the adherend B is detected, the process proceeds to step S2, and if it is determined that the adherend B is not detected, the process of step S1 is repeatedly executed.
In step S2, the platen roller 9 is driven to print on the label L, and the label L is peeled off by the peeling plate 11 and is sucked onto the suction surface 21 of the suction disk 18a.

When the feeding out of the label L is completed, the process proceeds to step S3, and it is determined whether or not the label confirmation sensor 23 has detected the label L.
If it is determined that the label L is adsorbed on the adsorption surface 21, the process proceeds to step S4. If it is determined that the label L is not adsorbed, the process proceeds to step S8, and the buzzer 40 notifying the abnormality is sounded. Notify the operator and then stop the operation.
And it progresses to step S9, the alarm generation part 40 is cancelled | released by operating the input part 43, and it complete | finishes. In step S9, the alarm operation is continued until the alarm generation unit 40 is released.

In step S4, it is determined whether or not the overrun sensor 24 detects the first overrun label L. If it is determined that the first label L has not been detected, the process proceeds to step S5. If the first label L is detected, the process proceeds to step S8, where the pitch sensor cannot read the reference mark and the first label L is detected. L and the next L1 are judged to have been sent and the alarm generator 40 is sounded to inform the operator and the subsequent operation is stopped.
And it progresses to step S9, the buzzer 40 is cancelled | released by operating the input part 43, and it complete | finishes. In step S9, the alarm operation is continued until the alarm generation unit 40 is released.

In step S5, the rod 20 of the air cylinder 19 operates toward the adherend B, and the process proceeds to step S6.
In step S <b> 6, the label L can be attached to the adherend B by the suction disk 18 a pressing the adherend B. When the suction disk 18a presses the adherend B, the proximity sensor 25 detects the support plate 18c as it approaches the support plate 18c, so that a signal indicating that the label L has been applied is supplied to the control unit 30 and step S7. In the state where the proximity sensor 25 does not detect the support plate 18c, it is determined that the suction plate 18a is not pressing the adherend B, and the process returns to step S6.

In step S7, when a signal indicating that the label L is pasted from the proximity sensor 25 is supplied to the control unit 30, the rod 20 is retracted to control the adsorbent 18 to return to the original label receiving position. ,finish.
In this way, when the label L fed out first is pushed out to the next label L1 and is fed out excessively without being attracted to the position of the predetermined suction surface 21, it is judged as abnormal and the operation of the air cylinder 19 is avoided. Since the labels L and L1 adsorbed by the suction plate 18a are not attached to the adherend B, it is possible to prevent a plurality of overlapping labels L and L1 from being attached to the adherend B.
In addition, since the overrun sensor 24 and the proximity sensor 25 are integrally formed, a large number of sensor holes are not formed in the suction disk 18a, so that a hollow portion is widely formed without complicating the structure of the suction disk. can do. Furthermore, it is easy to wire wiring codes such as electric power and signals from each sensor in one place.

In addition, although the sticking means of this Embodiment demonstrated in the example which advances / retreats an adsorbent body toward an adherend,
The label may be blown off toward the adherend by blowing air. An overrun sensor can be provided on a suction drum that sucks and holds a label on a cylindrical surface.

  In this embodiment, the number, position, shape, and the like of each constituent member are not limited to the above-described embodiments, and can be set to a number, position, shape, and the like that are suitable for carrying out the present invention. The present invention is not limited to the above-described embodiments, and it is obvious that the embodiments can be appropriately changed within the scope of the technical idea of the present invention.

1 Labeling device (present invention)
2 Supplying unit 3 Printing unit 4 Separating unit 5 Winding unit 6 Adhesive pasting unit 18 Adsorbing body 18a Adsorbing board
19 Air cylinder 20 Rod 21 Suction surface 21a Front end side 21b Rear end side 23 Label confirmation sensor 24 Overrun sensor (label detection means)
25 Proximity sensor (sticking confirmation means)
26 Composite sensor unit (Composite detection means)
30 Control part D Strip-like mount L Label P Label continuation body B Substrate

Claims (2)

Cylinder for affixing holding means having once a suction Chakumen that holds adsorption by air suction labels fed, the label sucked and held by advancing toward said holding means to an adherend to the adherend In a label sticking device comprising:
The suction surface has a front end side that receives a fed-out label, and a rear end side that is formed to face the front end side,
Rutotomoni provided near the rear end side, the first label is the adherend label detection means and said holding means for detecting said first label by being pushed to the next label to be sliding on the suction surface The sticking confirmation means for detecting whether or not the label that has been advanced toward and adsorbed and held is pressed against the adherend is integrally formed,
The label sticking apparatus, wherein the operation of the cylinder is stopped when the first label slidably contacted with the suction surface is pushed out to the next label. The label affixing device according to claim 1, further comprising an alarm generation unit that generates an alarm when the label detection unit detects an initial label .

Images