JP2013133130A - Label transfer apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label transfer apparatus which suppresses a drop in the yield of labels while ensuring a proper pasting position of a cut label and a proper cutting spot on a roll label, and hardly invites a drop in the rate of operation of a labeler.SOLUTION: The label transfer apparatus includes a feed roller 9 which transfers a roll label 1, a rotary cutter 10 which cuts the roll label 1, and a transfer drum 11 which sucks and holds a cut label R and transfers the label R to a pasting position P3. The roll label 1 with its front end side in a transfer direction sucked to the transfer drum 11 is cut by the rotary cutter 10, so that the label R can be delivered to the transfer drum 11. The label transfer apparatus is provided with a detecting device 39 which detects information on the cut label R being transferred by the transfer drum 11 and a controller 40 which controls an action of cutting the roll label 1 based on information on the cut label R detected by the detecting device 39.

Description

  The present invention relates to a feed roller that winds and conveys a roll label, a rotary cutter that cuts the roll label that has been conveyed by the feed roller, and a sticker that holds the cut label cut by the rotary cutter and attaches it to a container. The rotary cutter and the transport drum are formed by cutting the roll label in a state in which the front end side in the transport direction is sucked by the transport drum with the rotary cutter. The present invention relates to a label conveying device arranged to be able to deliver to the conveying drum.

  The label conveying device is equipped with a labeler (device for attaching a label to a container such as a bottle or a can), and is conveyed by a feed roller using a roll label on which a number of label designs are printed at predetermined intervals. The roll label is cut by a rotary cutter, and the cut label is sucked and held by a transfer drum and transferred to a sticking position on a container (for example, see Patent Document 1).

Delivery of the cut label cut by the rotary cutter to the transport drum is performed by cutting the roll label with the front end in the transport direction sucked by the transport drum by the rotary cutter.
For this reason, when the cutting timing with respect to the roll label varies, the timing of delivery of the cutting label to the transport drum also varies.
As a result, the transport phase of the cut label on the transport drum is a set phase (the phase at a specific position associated in advance so that the cut label transported by the transport drum is stuck to the container in a predetermined posture at the pasting position). May shift.

If the transport phase of the cut label on the transport drum deviates from the set phase, the cut label cannot be reliably applied in a predetermined posture at the application position, and the quality of the label attached to the container is degraded.
In addition, in the case where an application unit capable of applying glue at a predetermined application position is provided for a cut label that is being transported by the transport drum, if the transport phase of the cut label on the transport drum is deviated from the set phase, In this case, the cut label cannot be affixed in a predetermined posture at the affixing position, and the quality of the label affixed to the container is deteriorated.
In addition, when the glue cannot be applied to a predetermined position of the cut label, the glue may adhere to the transport drum as a result, and the adhered glue causes a trouble in transporting the label. For this reason, in order to prevent a conveyance trouble in advance, it is necessary to stop the label conveyance device and clean the conveyance drum, which leads to a reduction in the operating rate of the entire device.

Furthermore, since the roll label conveyed by the feed roller is cut by a rotary cutter, if the roll label conveyance speed fluctuates due to fluctuations in the frictional resistance between the feed roller and the roll label, the cut location of the roll label May shift with respect to the set cutting point.
If the cut part of the roll label is displaced from the set cut part, the label of the predetermined design cannot be attached to the container, and in this case, the quality of the label attached to the container is deteriorated.

  In the conventional label transport device, in order to maintain the quality of the label affixed to the container and prevent transport troubles, the label affixed to the container is visually inspected and the cut label is affixed in a predetermined posture. If it is determined that the cut position of the roll label is not aligned with the set cut position, the operation of the label conveying device is stopped, and the cutting timing by the rotary cutter and the conveying speed by the feed roller are adjusted. ing.

JP-A-5-147635

In the conventional label transport device, in order to maintain the quality of the label affixed to the container, it is necessary to visually inspect the cut label affixed to the container. Skill is required to determine the suitability of the location.
For this reason, it is easy to cause a delay in the determination of suitability, and a number of defective labels with inappropriate sticking postures and cut portions are generated, which may reduce the yield of the labels.
In addition, since the operation of the label conveying device is stopped and the cutting timing by the rotary cutter and the conveying speed by the feed roller are adjusted, there is a possibility that the operating rate of the labeler is likely to decrease due to the stop of the label conveying device. is there.
The present invention has been made in view of the above circumstances, and it is possible to suppress a decrease in the yield of the label while reducing the label yield while optimizing the posture for applying the cut label and the cut position of the roll label, and reducing the operating rate of the labeler. It is an object of the present invention to provide a label transport device that is difficult to invite.

  The first characteristic configuration of the label conveying apparatus according to the present invention includes a feed roller that wraps and conveys a roll label, a rotary cutter that cuts the roll label that has been conveyed by the feed roller, and a cut that is cut by the rotary cutter. A rotary drum that sucks and holds the label and transports the label to a sticking position with respect to the container. The cutting label is disposed so as to be able to be transferred to the transport drum by cutting, and a detection device that detects information related to the cutting label being transported by the transport drum, and information related to the cutting label detected by the detection device A control device for controlling the cutting operation of the roll label based on the detection result of It lies in the fact that is provided with a door.

The label transport device of this configuration controls the roll label cutting operation based on a detection device that detects information related to the cut label being transported by the transport drum, and a detection result of the information related to the cut label detected by the detection device. And a control device.
For this reason, it is necessary to visually inspect the cut label affixed to the container, that is, without requiring skill, and based on the detection result of the information on the cut label being transported by the transport drum, the transport phase of the cut label. Detecting the deviation from the set phase and the deviation of the cut part of the roll label from the predetermined part, so that the label sticking posture and the cut part of the roll label are appropriate without stopping the operation of the label transport device It becomes possible to cut the roll label.
Therefore, with the label transport device of this configuration, it is possible to suppress a decrease in label yield while optimizing the cutting label sticking posture and the cutting position of the roll label, and it is difficult for the labeler operation rate to decrease. .

  According to a second characteristic configuration of the present invention, the control device calculates a conveyance phase of the cutting label in the conveyance drum based on a detection result of information on the cutting label, and the calculated conveyance phase becomes a set phase. And the cutting timing of the roll label by the rotary cutter is controlled.

With this configuration, when controlling the cutting operation of the roll label, the cutting timing for the roll label by the rotary cutter is set so that the conveyance phase of the cutting label calculated based on the detection result of the information about the cutting label becomes the set phase. Control.
Therefore, it is easy to affix the cut label conveyed by the conveying drum in a predetermined posture with respect to the container at the affixing position.

  A third characteristic configuration of the present invention is an imaging device in which the detection device images a cut label being conveyed by the conveyance drum, and the control device is based on image data of the cut label imaged by the imaging device. The roll label cutting operation is controlled.

  For this reason, based on the image data of the cutting label being conveyed on the conveying drum, the deviation of the cutting label with respect to the set phase of the conveyance phase and the deviation of the cutting position of the roll label with respect to the predetermined position are detected, and the cutting label is applied. The roll label can be cut so that the posture and the cut position of the roll label are appropriate.

  According to a fourth characteristic configuration of the present invention, the control device detects the conveyance phase of the cutting label in the conveyance drum based on the image data of the cutting label, and the detected conveyance phase becomes the set phase. It exists in the point comprised so that the cutting | disconnection timing with respect to the said roll label by a rotary cutter may be controlled.

With this configuration, when controlling the roll label cutting operation, the timing of cutting the roll label by the rotary cutter is controlled so that the transport phase of the cut label detected based on the image data of the cut label becomes the set phase. .
Therefore, it is easy to affix the cut label conveyed by the conveying drum in a predetermined posture with respect to the container at the affixing position.

  According to a fifth characteristic configuration of the present invention, the control device detects the cut location of the roll label based on the image data of the cut label, and uses the feed roller so that the detected cut location becomes a set cut location. In the point which is comprised so that the conveyance speed of the said roll label may be controlled.

With this configuration, when controlling the cutting operation of the roll label, the conveyance speed of the roll label by the feed roller is controlled so that the cut position of the roll label detected based on the image data of the cut label becomes the set cutting position. To do.
Therefore, since the roll label can be cut at the set cutting position without adjusting the cutting timing by the rotary cutter, that is, while maintaining the conveying phase of the cutting label in the conveying drum at the set phase, the cutting label of the predetermined design It is easy to affix in a predetermined posture on the container at the affixing position.

  A sixth characteristic configuration of the present invention includes a feed roller that winds and conveys a roll label, a rotary cutter that cuts the roll label that has been conveyed by the feed roller, and a suction label that holds the cut label that has been cut by the rotary cutter The rotary cutter and the transport drum are cut by the rotary cutter in a state where the front end side in the transport direction is sucked by the transport drum. The cutting label is disposed so as to be able to be transferred to the transport drum, and an application unit capable of applying glue at a predetermined application position to the cutting label being transported by the transport drum, and being transported by the transport drum A detecting device for detecting information on the cut label of the device, and a cut label detected by the detecting device. That based on the information of the detection result, there is provided a control device for controlling the glue applying operation by the applying unit

The label conveying device of this configuration includes an application unit that can apply glue at a predetermined application position to a cut label being conveyed by the conveyance drum, a detection device that detects information about the cut label being conveyed by the conveyance drum, A control device is provided for controlling the glue application operation by the application unit based on the detection result of the information regarding the cut label detected by the detection device.
For this reason, it is necessary to visually inspect the cut label affixed to the container, that is, without requiring skill, and based on the detection result of the information on the cut label being transported by the transport drum, the transport phase of the cut label. It is possible to apply glue to a predetermined position of the cut label so that the applied posture of the cut label becomes appropriate without detecting the deviation from the set phase and stopping the operation of the label conveying device.
Therefore, with the label conveyance device of this configuration, it is possible to suppress a decrease in label yield while achieving an appropriate application posture of the cut label, and it is difficult for the labeler operation rate to decrease.

  A seventh characteristic configuration of the present invention is an imaging device in which the detection device images a cut label being conveyed by the conveyance drum, and the application unit is based on image data of the cut label imaged by the imaging device. Is provided with a control device for controlling the glue application operation.

  With this configuration, based on the image data of the cut label being transported by the transport drum, the shift of the cut label with respect to the set phase of the transport phase is detected, and the cut label is stopped without stopping the operation of the label transport device. It becomes possible to apply glue to a predetermined position of the cut label so that the sticking posture of the sheet becomes appropriate.

An eighth characteristic configuration of the present invention is that a pressure control unit that can be controlled so that the suction pressure of the cutting label by the transport drum is constant is provided.
That is, the delivery of the cut label cut by the rotary cutter to the transport drum is performed by cutting the roll label with the front end in the transport direction sucked by the transport drum by the rotary cutter.
For this reason, when the suction force of the cut label by the transport drum decreases due to clogging of the suction path, the delivery posture of the cut label to the transport drum and the transport posture by the transport drum are easily disturbed, and the transport is transported by the transport drum. There is a possibility that it is difficult to apply the cut label to the container in a predetermined posture at the application position.

  If it is this structure, the suction force of the cutting label by a conveyance drum can be maintained constant, the disorder | damage | failure of the delivery posture of a cutting label to a conveyance drum and a conveyance attitude | position can be suppressed, and the cutting label conveyed by a conveyance drum It is easier to optimize the posture of the sticker.

It is a schematic plan view which shows a labeler. It is a longitudinal cross-sectional view which shows a 2nd conveyance drum. It is sectional drawing which shows the principal part of a 2nd conveyance drum. It is explanatory drawing of a control apparatus. It is explanatory drawing of the conveyance phase of a label. It is explanatory drawing of the cutting | disconnection location of a label. It is explanatory drawing of the label of the position where glue is applied to a label. It is a flowchart of cutting | disconnection timing control. It is a flowchart of conveyance speed control. It is a flowchart of paste application control.

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 shows a labeler equipped with a label transport device A according to the invention.

As shown in FIG. 1, the labeler cuts a roll label 1 fed out from a roll (not shown) into a cut label R (hereinafter simply referred to as a label) R having a predetermined length and conveys it to a label applying position P3. A transport device A, a coating unit 2 for applying glue made of a hot melt agent at a predetermined glue application position P2 to a label R being transported to a label application position P3, a bottle before label application being transported by a supply conveyor 3; Infeed screw 4 for arranging containers B such as cans at predetermined intervals, inlet star wheel 6 for transferring containers B conveyed by the supply conveyor 3 to the conveying star wheel 5, and after labeling that has been conveyed by the conveying star wheel 5 The outlet star wheel 8 for transferring the container B to the discharge conveyor 7 is provided.
The label R after the glue is applied at the glue application position P2 is conveyed to the label application position P3 and is adhered by contacting the outer peripheral surface of the container B being conveyed by the conveyance star wheel 5.

  The label transport device A sucks the feed roller 9 that winds and transports the roll label 1, the rotary cutter 10 that cuts the roll label 1 transported by the feed roller 9, and the label R that is cut by the rotary cutter 10. And a transport drum 11 that holds and transports the container B to a sticking position P3 with respect to the container B.

The rotary cutter 10 includes a cutter roller 10a having a cutter blade 12 and a backup roller 10b that rotates in synchronization with the cutter roller 10a.
The roll label 1 conveyed between the cutter roller 10a and the backup roller 10b by the feed roller 9 is sucked and held on the outer peripheral surface of the backup roller 10b, and is cut by the cutter blade 12 every time the cutter roller 10a rotates once. Is done.

  The transport drum 11 sucks and holds the label R cut by the rotary cutter 10 on the outer peripheral surface and delivers it to the second transport drum 11b, and the label R delivered from the first transport drum 11a. And a second transport drum 11b that is sucked and held on the outer peripheral surface and transported to the sticking position P3.

The transport star wheel 5, the first transport drum 11a, and the second transport drum 11b are driven and rotated in synchronism so that the transport speed of the label R, that is, the peripheral speed thereof is the same.
The rotation speed of the feed roller 9 for setting the conveyance speed (circumferential speed) of the roll label 1 and the rotation speed (rotation speed) of the cutter roller 10a for setting the cutting timing of the rotary cutter 10 are provided so as to be adjusted independently of each other. .

  The rotary cutter 10 and the first transport drum 11a are set so that the transport speed of the roll label 1 by the feed roller 9 is slightly slower than the transport speed of the label R by the first transport drum 11a, and the leading end side in the transport direction is the first. The roll label 1 that is sucked and slidably contacted with the outer peripheral surface of the transport drum 11a is cut by the rotary cutter 10, so that the separated label R is delivered to the first transport drum 11a at a predetermined interval so as to be transported. It is.

  As shown in FIG. 2, the second transport drum 11b is formed in a bottomed cylindrical shape having a cylindrical wall 13a and a bottom wall 13b, and sucks and holds the label R on the drum outer peripheral surface 13c which is the outer peripheral surface of the cylindrical wall 13a. And rotate and transport. The second transport drum 11b is rotatably supported with the bottom wall 13b fixed to the rotating shaft 14 concentrically.

The rotary shaft 14 is driven and rotated by a drive motor (not shown) and is rotatably supported by a fixed base plate 15 and a fixed circular plate 16 via bearings.
An annular sliding plate 17 is fixed to the outer peripheral portion on the upper surface side of the circular plate 16. The bottom wall 13b of the second transport drum 11b slides with respect to the sliding plate 17 as the second transport drum 11b rotates.

Label holding portions 18 formed of an elastic body such as rubber are provided at a plurality of locations (four locations in the present embodiment) in the circumferential direction of the drum outer peripheral surface 13c at regular intervals.
As shown in FIG. 3, each label holding unit 18 holds the label leading end portion on the leading end side in the transporting direction of one label R so as to suck and hold two front and rear portions in the transporting direction a of the label R. There are two protrusions: a first protrusion 18a for sucking and holding, and a second protrusion 18b for sucking and holding the rear end portion of the label on the rear end side in the transport direction.

As shown in FIG. 3, the paste application unit 2 has an application head 21 having a distal end surface 20 at which a discharge port 19 capable of discharging glue opens in the vertical direction.
As shown in FIG. 2, the coating head 21 is supported by a support base 23 via a distance adjusting device 22, and is disposed so that the front end surface 20 faces the drum outer peripheral surface 13 c.
The interval adjusting device 22 adjusts the interval between the drum outer peripheral surface 13c and the front end surface 20 by driving the servo motor 24 in a state where the drum outer peripheral surface 13c and the front end surface 20 face each other in parallel in the vertical direction. .

The discharge port 19 is formed in a vertically long shape slightly shorter than the vertical width of the label R sucked and held on the drum outer peripheral surface 13 c, and is connected to the glue storage part 26 via the glue passage 25.
Paste supplied from a paste supply device 27 such as a pump is discharged from the discharge port 19 via the paste storage unit 26.

  When the front end surface 20 of the coating head 21 comes into contact with the front end portion of the label, the glue is pressurized and supplied from the glue supply device 27 to the glue storage unit 26 by the signal from the glue supply control unit 29 and pushed out from the discharge port 19. Thus, the discharged glue is applied to the leading end of the label.

  The timing for starting the discharge of the glue is determined by the rotation position signal (encoder pulse signal) of the second transport drum 11b, and the first protrusion 18a holding the label leading edge based on the rotation position signal applies the glue. When it is detected that the position P2 has been reached, the discharge of glue from the discharge port 19 is started, and the discharge of glue is stopped when a predetermined time has elapsed.

When the paste is discharged from the discharge port 19, the front end surface 20 and the label front end portion are in contact with each other, and the discharge port 19 is closed with the label front end portion.
For this reason, due to the discharge pressure of glue from the discharge port 19, the label holding portion 18 made of an elastic body is retracted and deformed together with the label leading end portion, and a gap is formed between the leading end surface 20 and the label leading end portion. The glue discharged so as to overflow through the gap is applied to the leading end of the label.

  Thereafter, when the rear end portion of the label held by the second protrusion 18b comes into contact with the front end surface 20 of the application head 21, the application operation is resumed, and the paste is applied to the rear end portion of the label in the same manner as the front end portion of the label.

  When the container B transported by the transport star wheel 7 reaches the label sticking position P3, the label R with glue applied held by the label holding part 18 is pressed against the outer peripheral surface of the container and pasted.

A plurality of suction ports 28 opening outward in the drum radial direction are formed in each of the first protrusion 18a and the second protrusion 18b.
Each suction port 28 is connected to the bottom wall 13b via a longitudinal passage 30 formed in the thickness of the cylindrical wall 13a of the second transport drum 11b and a radial passage 31 formed in the thickness of the bottom wall 13b. It communicates with a vacuum pressure introduction port 32 that opens to the lower surface side.

As shown in FIG. 2, a vacuum groove 33 extends in an arc shape on the upper surface side of the circular plate 16, and vacuum pressure is introduced through a suction pipe 34 connected to the lower surface side.
The suction pipe 34 is connected to a vacuum pump (not shown).
The sliding plate 17 is fixed so as to cover the vacuum groove 33, and a through-hole 35 communicating with the vacuum groove 33 is formed along the vertical direction.

  The vacuum groove 33 and the through hole 35 are formed in an arc-shaped range from the label delivery position P1 to the label attaching position P3, so that the vacuum pressure inlet 32 communicates with the through hole 35 as shown in FIG. An arcuate conveyance vacuum region Z2 is provided in which a vacuum pressure acts on the suction port 28 to suck and hold the label R.

  When the label holding unit 18 reaches the label delivery position P1 due to the driving rotation of the second transport drum 11b, the vacuum pressure inlet 32 corresponding to the label holding unit 18 communicates with the vacuum groove 33 and can suck the label R. When the label holding unit 18 reaches the label applying position P3, the vacuum pressure introduction port 32 is removed from the conveyance vacuum region Z2, the vacuum is stopped, and the suction holding of the label R is released.

As shown in FIG. 1, the first transport drum 11a is provided with a delivery vacuum region Z2 having a vacuum groove (not shown) for sucking and holding the label R on the outer peripheral surface. A cutter vacuum region Z3 having a vacuum groove (not shown) for sucking and holding the roll label 1 on the outer peripheral surface is provided.
The delivery vacuum area Z1 and the cutter vacuum area Z3 are configured in the same manner as the transfer vacuum area Z2.
Each of the vacuum regions Z1 to Z3 is maintained at a negative pressure by the operation of a common vacuum pump (not shown).

  As shown in FIG. 4, pressure detection sensors S1 to S3 for detecting the pressure in each of the vacuum regions Z1 to Z3 are provided. Based on the pressure detection results by these pressure detection sensors S1 to S3, the label R or the roll label 1 A pressure control unit 37 for controlling the operation of the vacuum pump 36 is provided so that the suction pressure is constant.

  The pressure control unit 37 inputs control information to the electropneumatic regulator 38 based on the pressure detection results by the pressure detection sensors S1 to S3, and operates the vacuum pump 36 according to the control information input by the electropneumatic regulator 38. The suction pressure of the label R or the roll label 1 is kept constant.

  As shown in FIG. 4, the label transport device A is based on a detection device 39 that detects information related to the cut label R being transported by the transport drum 11, and a detection result of information related to the cut label R detected by the detection device 39. And a control device 40 for controlling the cutting operation of the roll label 1 and the glue application operation by the application unit 2.

  The control device 40 calculates the transport phase of the cut label R on the transport drum 11 based on the detection result of the information on the cut label R, and the roll label 1 by the rotary cutter 10 so that the calculated transport phase becomes the set phase. It is comprised so that the cutting | disconnection timing with respect to and the paste application | coating operation | movement by the application part 2 may be controlled.

  Specifically, the detection device 39 is configured by an imaging device that images the label R being conveyed by the conveyance drum 11, and the control device 40 is imaged by the imaging device (detection device) 39 as information regarding the cut label R. Based on the image data of the cut label R, the cutting operation of the roll label 1 and the glue application operation by the application unit 2 are controlled.

  The imaging device 39 includes a first high-speed camera 39a that captures an instant when the label R sucked and held on the first transport drum 11a passes a specific position (hereinafter referred to as a first specific position), and a second transport drum 11b. And a second high-speed camera 39b that captures the moment when the label R sucked and held passes a specific position (hereinafter referred to as a second specific position).

  As shown in FIG. 6, the control device 40 performs feedback control of the cutting timing of the roll label 1 by the rotary cutter 10 so that the conveyance phase C1 of the label R becomes the set phase C0 as shown in FIG. In addition, the conveyance speed control for feedback control of the conveyance speed of the roll label 1 by the feed roller 9 so that the cutting position D1 of the label R is appropriately set to the cutting position D0 of the label R0, and the label as shown in FIG. Glue application control for feedforward control of the glue application operation by the application unit 2 is alternately executed at predetermined time intervals so that the position E1 where the R glue is applied becomes the predetermined position E0.

FIG. 8 shows a control flow of cutting timing control.
In the cutting timing control, the first conveyance phase of the first conveyance drum 11a of the label R is detected based on the image data of the label R by the first high-speed camera 39a, and the "first conveyance phase and the first set phase" The deviation F1 "is calculated (step # 1).
The first set phase is associated in advance so that the label R being conveyed by the first conveyance drum 11a is transferred to the second conveyance drum 11b and is adhered to the container B in a predetermined posture at the application position P3. The phase at the first specific position is stored in advance in a memory or the like.

  Next, it is determined whether or not “deviation F1” is a “deviation” within an allowable range (step # 2). If the “deviation” exceeds the allowable range, the shift is faster than the first set phase. It is determined whether it is “deviation” or “deformation” toward the later side (step # 3).

  When the shift is faster than the first set phase, the rotation speed of the cutter roller 10a is decreased by the set rotation speed so that the cutting timing is delayed. If it is “deviation”, the rotational speed of the servo motor M1 that drives and rotates the cutter roller 10a is changed so that the rotational speed of the cutter roller 10a is increased by the set rotational speed so that the cutting timing is accelerated (step # 4). , 5).

When it is determined in step # 2 that the “deviation F1” between the first transport phase and the first set phase is within the allowable range, based on the image data of the label R by the second high-speed camera 39b. The second transport phase of the label R on the second transport drum 11b is detected, and the “deviation F2” between the second transport phase and the second set phase is calculated (step # 6).
The second set phase is such that the label R being transported by the second transport drum 11b is applied with a paste to a predetermined portion at the paste application position P2 and is applied to the container B in a predetermined posture at the application position P3. The phase at the second specific position associated in advance is stored in advance in a memory or the like.

  Next, it is determined whether or not “deviation F2” is a “deviation” within an allowable range (step # 7). If the “deviation” exceeds the allowable range, the shift is faster than the second set phase. It is determined whether it is “deviation” or “deviation” toward the later side (step # 8).

  When the shift is faster than the second set phase, the rotation speed of the cutter roller 10a is lowered by the set rotation speed so that the cutting timing is delayed. If it is “deviation”, the rotational speed of the servo motor M1 that drives and rotates the cutter roller 10a is changed so that the rotational speed of the cutter roller 10a is increased by the set rotational speed so that the cutting timing is accelerated (step # 9). , 10).

FIG. 9 shows a control flow of transport speed control.
In the conveyance speed control, the cutting position on the front side or the rear side in the conveyance direction of the label R is detected based on the image data of the label R by the first high-speed camera 39a, and “deviation G” between the cutting position and the set cutting position. Is calculated (step # 21).
The set cutting location is a location that is appropriately cut so that a predetermined label design can be displayed without deviation, and is stored in advance in a memory or the like.

  Next, it is determined whether or not the “deviation G” between the cut location and the set cut location is within the allowable range (step # 22). If the “deviation” exceeds the allowable range, it is set. It is determined whether the position is shifted to the front side in the transport direction or the rear side in the transport direction from the cut portion (step # 23).

  When the cut location is shifted to the front side in the transport direction from the set cut location, the transport speed of the roll label 1 by the feed roller 9 is increased by the set speed so that the cut location is displaced rearward in the transport direction, and the cut location Is shifted rearward in the transport direction from the set cutting position, the feed roller so that the transport speed of the roll label 1 by the feed roller 9 is decreased by the set speed so that the cutting position is displaced forward in the transport direction. 9 is changed (steps # 24 and 25).

FIG. 10 shows a control flow of glue application control.
In the glue application control, as in steps # 6 to # 8 in the cutting timing control, the “deviation F2” between the second conveyance phase and the second set phase is calculated (step # 31), and the “deviation F2” is labeled. Estimating the magnitude of the deviation of the position E1 where the R glue is applied from the predetermined position E0, it is determined whether or not the “deviation F2” is within the allowable range (step # 32), and the allowable range If it is a “deviation” exceeding 1, a determination is made as to whether the “deviation” is faster or slower than the second set phase (step # 33).

  If the shift is faster than the second set phase, a control command to increase the glue application timing by a time corresponding to the shift G2 is input to the glue supply control unit 29, and the second set phase is set. If it is “shift” to the later side, a control command for delaying the glue application timing by a time corresponding to “shift F2” is input to the glue supply control unit 29 (steps # 34 and 35).

  The glue supply control unit 29 corrects the application timing based on the input control command, operates the glue supply device 27 so that the corrected application timing is reached, and applies the glue to the conveyed label R. .

[Other Embodiments]
1. The label conveying apparatus according to the present invention is configured so that the conveying drum is composed only of the second conveying drum 11b, and the cut label R cut by the rotary cutter 10 is directly delivered to the second conveying drum 11b. Also good.
2. In the label transport device according to the present invention, the imaging device 39 may include only one of the first high-speed camera 39a and the second high-speed camera 39b.
3. The label transport device according to the present invention is a detection device that detects information related to a cut label such as a relative position of the cut label being transported by the transport drum with respect to the transport drum and a transport posture in place of the imaging device that captures the cut label. It may be provided.

DESCRIPTION OF SYMBOLS 1 Roll label 2 Application | coating part 9 Feed roller 10 Rotary cutter 11 Conveying drum 37 Pressure control part 39 Detection apparatus (imaging apparatus)
40 Control device B Container C0 Setting phase C1 Conveying phase D0 Setting cutting location D1 Cutting location P2 Application position P3 Application position R Cutting label

Claims (8)

A feed roller that wraps and conveys a roll label;
A rotary cutter for cutting the roll label conveyed by the feed roller;
Having a conveying drum that sucks and holds the cut label cut by the rotary cutter and conveys it to a sticking position with respect to the container;
The rotary cutter and the transport drum are arranged so that the cut label can be delivered to the transport drum by cutting the roll label with the transport direction leading end sucked by the transport drum with the rotary cutter. ,
A detection device for detecting information relating to a cut label being conveyed by the conveyance drum;
A label conveying device provided with a control device for controlling a cutting operation of the roll label based on a detection result of information on the cut label detected by the detection device.   The control device calculates a conveyance phase of the cut label in the conveyance drum based on a detection result of information on the cut label, and applies the roll label to the roll label by the rotary cutter so that the calculated conveyance phase becomes a set phase. The label conveying apparatus according to claim 1, wherein the label conveying apparatus is configured to control cutting timing. The detection device is an imaging device that images a cut label being conveyed by the conveyance drum;
The label transport device according to claim 1, wherein the control device is configured to control a cutting operation of the roll label based on image data of the cut label imaged by the imaging device.   The control device detects a conveyance phase of the cutting label on the conveyance drum based on the image data of the cutting label, and a cutting timing for the roll label by the rotary cutter so that the detected conveyance phase becomes a set phase. The label transport device according to claim 3, which is configured to control   The control device detects a cut location of the roll label based on the image data of the cut label, and controls the conveyance speed of the roll label by the feed roller so that the detected cut location becomes a set cut location. The label conveyance device according to claim 3 or 4 constituted as follows. A feed roller that wraps and conveys a roll label;
A rotary cutter for cutting the roll label conveyed by the feed roller;
Having a conveying drum that sucks and holds the cut label cut by the rotary cutter and conveys it to a sticking position with respect to the container;
The rotary cutter and the transport drum are arranged so that the cut label can be delivered to the transport drum by cutting the roll label with the transport direction leading end sucked by the transport drum with the rotary cutter. ,
An application unit capable of applying glue at a predetermined application position to the cut label being conveyed by the conveyance drum;
A detection device for detecting information relating to a cut label being conveyed by the conveyance drum;
A label conveying device provided with a control device for controlling an adhesive application operation by the application unit based on a detection result of information on the cut label detected by the detection device. The detection device is an imaging device that images a cut label being conveyed by the conveyance drum;
The label transport device according to claim 6, further comprising a control device that controls an adhesive application operation by the application unit based on image data of the cut label imaged by the imaging device.   The label conveyance apparatus of any one of Claims 1-7 provided with the pressure control part which can be controlled so that the suction pressure of the said cutting label by the said conveyance drum becomes fixed.

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