WO2023119454A1

WO2023119454A1 - Label-affixing device, method for controlling label-affixing device, and program

Info

Publication number: WO2023119454A1
Application number: PCT/JP2021/047446
Authority: WO
Inventors: 亮太朗高村; 誠一大木
Original assignee: 富士通フロンテック株式会社
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2023-06-29
Also published as: JPWO2023119454A1

Abstract

This label-affixing device comprises: a feed mechanism that has a supply roll having rolled thereon a sheet in which labels are provided on a base material with an adhesive material interposed therebetween, and a take-up roll for taking up the base material of the sheet supplied from the supply roll; a printing unit that performs printing on the labels; a release member that releases the labels from the base material of the sheet fed by the feed mechanism; an affixing mechanism that affixes, to the outer circumferential surface of a cylindrical body, each of the labels having the front end thereof in the feed direction of the sheet released from the base material; a detection unit for detecting the outer diameter of the take-up roll around which the base material is rolled; and a control unit that controls the feed mechanism. When the detection unit detects that the outer diameter of the take-up roll has become equal to or more than a predetermined outer diameter, the control unit controls the feed mechanism so as to start a preliminary release operation for releasing the front end of a label from the base material, and moving the sheet backward so that the label is returned to the base material, and, after the preliminary release operation, releases the front end of the label from the base material.

Description

LABELING APPARATUS, CONTROLLING METHOD FOR LABELING APPARATUS, AND PROGRAM

The present invention relates to a labeling device, a labeling device control method, and a program.

For example, there is known a labeling device that affixes a label peeled off from a base material of a sheet to the outer peripheral surface of a cylindrical body such as a test tube such as a blood collection tube. As this type of label sticking device, there is one that peels off a part of the front end of the label from the base material of the sheet and peels off the label from the base material while sticking the front end of the label along the outer peripheral surface of the cylindrical body.

In the label applicator, when the front end of the label is peeled off from the base material, the front end of the label tends to be pulled in the direction in which the base material is fed, causing variations in the orientation of the front end portion of the label. For this reason, the accuracy of the position where the label is affixed on the outer peripheral surface of the cylindrical body decreases depending on the orientation of the front end portion of the label. If the front end portion of the label is not properly separated from the base material, for example, the front end portion of the label collides with the outer peripheral surface of the cylindrical body, and the front end portion of the label is folded and attached to the cylindrical body. There is a risk that the sticking failure may occur.

This phenomenon is particularly noticeable in a low-temperature environment where the adhesive strength of the label adhesive increases, or when using a label with a high adhesive strength. Further, when a rolled sheet such as roll paper is used, the central side in the radial direction of the rolled sheet has a smaller diameter than the outer peripheral side, so that the sheet tends to curl. Due to this, the posture of the front end portion of the label tends to become more unstable.

For this reason, in the labeling apparatus, a preliminary peeling operation is performed to peel off the front end of the label from the base material and the sheet is reversed to return the label to the base material. After the preliminary operation, the front end of the label is peeled off from the base material. ing. As a result, the stability of the posture of the front end portion of the label peeled off from the base material can be enhanced, and the reliability of the operation of attaching the label to the outer peripheral surface of the cylindrical body can be enhanced.

WO2020/261445

However, since the label sticking apparatus requires time for the above preliminary peeling operation, performing the preliminary peeling operation for all the labels on the roll sheet has the problem of lowering the label pasting efficiency.

The disclosed technology has been made in view of the above, and is a label sticking device that can start a preliminary peeling operation when label sticking failures are likely to occur, and can improve the label sticking efficiency. An object of the present invention is to provide a control method and a program for a labeling device.

One aspect of the labeling apparatus disclosed in the present application includes a supply roll around which a sheet having a label provided on a substrate via an adhesive is wound, and a supply roll around which the substrate of the sheet supplied from the supply roll is wound. a take-up roll to be picked up; a printing unit for printing on the label; a peeling member for peeling the label from the base material of the sheet fed by the feeding mechanism; and a feeding direction of the sheet. a sticking mechanism for sticking the label, the front end of which has been peeled off from the base material, along the outer peripheral surface of a cylindrical body; and a detection for detecting the outer diameter of the winding roll around which the base material is wound. and a control unit that controls the feeding mechanism, wherein the control unit detects that the outer diameter of the take-up roll has become equal to or greater than a predetermined outer diameter, the A preliminary peeling operation is started in which the front end of the label is peeled off the base material and the sheet is reversed to return the label to the base material, and after the preliminary peeling operation, the front end of the label is peeled from the base material. The feed mechanism is controlled so as to

According to one aspect of the label sticking device disclosed in the present application, it is possible to start the preliminary peeling operation when label sticking failures are likely to occur, and the label sticking efficiency can be improved.

FIG. 1 is a perspective view showing the appearance of the blood collection tube preparation device of the embodiment. FIG. 2 is a perspective view showing the inside of the blood collection tube preparation device of the embodiment. FIG. 3 is a longitudinal sectional view for explaining the inside of the blood collection tube preparation device of the embodiment. FIG. 4 is a schematic diagram showing the essential parts of the labeling apparatus of the embodiment. FIG. 5 is a plan view showing a sheet used in the labeling device of the embodiment. FIG. 6 is a schematic diagram for explaining the rotary encoder of the take-up roll in the example. FIG. 7A is a schematic diagram showing a state where the front end of the label is peeled off in the labeling apparatus of the example. FIG. 7B is a schematic diagram showing a state where the front end of the label is peeled off in the labeling device of the example. FIG. 8 is a flow chart for explaining control of the preliminary peeling operation in the embodiment. FIG. 9 is a diagram showing changes in the tension of the mount accompanying changes in the outer diameter of the take-up roll.

Hereinafter, embodiments of the labeling device, the labeling device control method, and the program disclosed in the present application will be described in detail based on the drawings. It should be noted that the labeling apparatus, the labeling apparatus control method, and the program disclosed in the present application are not limited to the following embodiments.

FIG. 1 is a perspective view showing the appearance of the blood collection tube preparation device of the embodiment. FIG. 2 is a perspective view showing the inside of the blood collection tube preparation device of the embodiment. As shown in FIGS. 1 and 2, the blood collection tube preparation device 1 includes a housing having a top cover CV1, a side cover CV2, and a front cover CV3, and each part inside can be opened and closed. The front cover CV3 is provided with an operation panel 5 for operating the blood collection tube feeding device 2 and the labeling device 3, which will be described later. 1 and 2, the depth direction of the blood collection tube preparation device 1 is shown as the X direction, the width direction of the blood collection tube preparation device 1 as the Y direction, and the height direction of the blood collection tube preparation device 1 as the Z direction. In FIG. 3 and subsequent figures, the X, Y, and Z directions are shown, respectively, in the same manner as in FIGS.

FIG. 3 is a longitudinal sectional view for explaining the inside of the blood collection tube preparation device 1 of the embodiment. As shown in FIG. 3 , the blood collection tube preparation device 1 includes a blood collection tube supply device 2 and a labeling device 3 that affixes labels to the blood collection tubes 4 supplied from the blood collection tube supply device 2 . The blood collection tube supply device 2 includes a plurality of

housing sections

6A and 6B housing the blood collection tubes 4, a feeding section 7 feeding the blood collection tubes 4 from the

housing sections

6A and 6B, and the blood collection tubes 4 fed from the feeding section 7. and a transport unit 8 that transports the

The plurality of housing portions 6A and the plurality of housing portions 6B are arranged side by side in the X direction. For example, blood collection tubes 4 of different sizes are accommodated in the accommodating portion 6A and the accommodating portion 6B. A plurality of blood collection tubes 4 are arranged along the Z direction in each

housing section

6A, 6B with the longitudinal direction of the blood collection tubes 4 facing sideways. The delivery unit 7 is arranged below the

storage units

6A and 6B, and delivers the blood collection tube 4 from the

storage units

6A and 6B. The conveying unit 8 has a conveying member 9 that reciprocates along the X direction. .

(Configuration of labeling device)
As shown in FIG. 3, the labeling apparatus 3 includes a sheet supply mechanism 16 as a feed mechanism for feeding a sheet 10 having a label 12 provided thereon via an adhesive (adhesive layer) 13 to a backing paper 11 as a base material, which will be described later. and a printing unit 17 that prints on the label 12 . In addition, the label applying device 3 includes a peeling member 18 for peeling the label 12 from the sheet 10 fed by the sheet feeding mechanism 16, and a front end 12a of the label 12 in the feed direction (X direction) of the sheet 10. A sticking mechanism 19 is provided for sticking the label 12 peeled from the mount 11 by the amount along the outer peripheral surface of the blood collection tube 4 as a cylindrical body.

FIG. 4 is a schematic diagram showing the essential parts of the labeling device 3 of the embodiment. Further, as shown in FIG. 4, the label sticking device 3 includes a control section 21 that controls the sheet feeding mechanism 16, the printing section 17, and the sticking mechanism 19, respectively. The control unit 21 has, for example, a CPU (Central Processing Unit), a storage device, an input/output device, a communication interface, a control board (not shown) provided with a media interface, etc., and supplies sheets. It is electrically connected to the mechanism 16, the printing section 17, and the pasting mechanism 19, respectively. The control unit 21 in the embodiment controls the sheet supply mechanism 16, the printing unit 17, and the pasting mechanism 19, respectively. The part may be provided independently.

(Control of sheet supply mechanism by control unit)
Then, the control unit 21 of the label sticking device 3 peels the front end 12a of the label 12 in the X1 direction by a predetermined preliminary peeling amount, and causes the sheet feeding mechanism 16 to reversely feed the sheet 10 in the X2 direction. The sheet supply mechanism 16 is controlled so as to perform a preliminary peeling operation for returning the entire label 12 onto the backing paper 11 . The control unit 21 controls the sheet supply mechanism 16 to start the preliminary peeling operation at a predetermined timing when the tension of the backing paper 11 of the sheet 10 sent by the sheet supply mechanism 16 becomes equal to or less than a predetermined threshold value. The timing for starting the preliminary peeling operation will be described later. After the preliminary peeling operation, the control unit 21 controls the sheet feeding mechanism 16 so that the leading edge 12a of the label 12 is peeled by a predetermined reference peeling amount.

(Seat configuration)
FIG. 5 is a plan view showing the sheet 10 used in the labeling device 3 of the embodiment. The sheet 10 has a mount 11 and a label 12 provided on the mount 11 via an adhesive 13 . As shown in FIG. 5, a plurality of labels 12 are arranged at predetermined intervals along the longitudinal direction of the mount 11 . The length L of the label 12 in the longitudinal direction of the mount 11 is, for example, approximately 30 [mm] to 35 [mm]. The width W of the label 12 in the widthwise direction of the mount 11 is, for example, about 50 [mm].

As the sheet 10, a roll sheet is used in which the mount 11 is wound with the label 12 on the mount 11 facing the outer circumference. Note that the sheet 10 is not limited to a roll sheet, and a so-called fanfold sheet that is alternately folded in a bellows shape along the longitudinal direction of the sheet 10 may be used. Also, as the sheet 10 using RFID (Radio Frequency IDentifier), a sheet 10 having a label 12 provided with an RF tag may be used.

(Structure of Sheet Feeding Mechanism)
As shown in FIGS. 3 and 4, the sheet supply mechanism 16 includes the supply roll 23 which is the roll sheet described above, a plurality of guide rollers 24 and guide plates 25 for guiding the sheet 10 sent from the supply roll 23, a label It has a winding roll 26 for winding the backing paper 11 from which 12 has been peeled off, and a roller drive mechanism 27 for driving the winding roll 26 .

The roller drive mechanism 27 has a drive roller 28 that rotates the winding roll 26 , a motor 29 that rotationally drives the drive roller 28 , and a drive belt 30 that transmits the driving force of the motor 29 . A drive belt 30 is stretched over a rotation shaft 29a of the motor 29, a rotation shaft 28a of the drive roller 28, and a rotation shaft 35a of a platen roller 35 of the printing unit 17, which will be described later. 28, the platen roller 35 is rotated. The take-up roll 26 is rotated with the rotation of the drive roller 28 . Therefore, the take-up roll 26 is rotated in synchronization with the rotation of the platen roller 35 .

A torque limiter 33 is provided on the rotating shaft 26a of the take-up roll 26, and when torque above a certain level is applied to the take-up roll 26, slippage occurs in the rotation of the take-up roll 26, causing the take-up roll 26 to idle. Torque on shaft 26a is limited. This prevents the sheet 10 supplied from the supply roll 23 and wound on the take-up roll 26 from being subjected to a certain level of tension. For this reason, in the sheet supply mechanism 16 , as the winding amount of the winding roll 26 increases and the outer diameter of the winding roll 26 increases, the amount of slippage of the winding roll 26 with respect to the conveying amount of the backing paper 11 by the platen roller 35 increases. will increase.

The peeling member 18 is arranged downstream of the printing unit 17 in the path of the sheet 10 supplied from the supply roll 23 . The peeling member 18 is formed in a flat plate shape and is fixed along the feed direction (X1 direction) of the sheet 10 .

The sheet supply mechanism 16 folds back the sheet 10 sent from the supply roll 23 at the tip of the peeling member 18, thereby peeling the label 12 having the adhesive 13 from the backing paper 11 of the sheet 10 from the front end 12a side. The sheet supply mechanism 16 winds up only the backing paper 11 that has passed the tip of the peeling member 18 onto the winding roll 26 .

As shown in FIG. 4, the sheet supply mechanism 16 detects a leading edge detection sensor 31 that detects the leading edge 12a of the label 12 separated from the backing sheet 11 by the peeling member 18, and a trailing edge 12b of the label 12 on the backing sheet 11. and a rear end detection sensor 32 (see FIG. 7A).

The leading edge detection sensor 31 is arranged downstream and upward (Z direction) in the feed direction (X1 direction) of the sheet 10 with respect to the leading edge of the peeling member 18 and is electrically connected to the controller 21 . . The trailing edge detection sensor 32 is arranged at a predetermined position on the upstream side in the feeding direction (X1 direction) of the sheet 10 with respect to the printing unit 17 and is electrically connected to the control unit 21 .

Although not shown, the front end detection sensor 31 and the rear end detection sensor 32 use transmissive optical sensors, and have a light emitting portion that emits detection light and a light receiving portion that receives the detection light from the light emitting portion. The light-emitting part and the light-receiving part are arranged across the path of the label 12, and the label 12 is detected by blocking the detection light.

The sheet supply mechanism 16 also includes a rotation detection unit 44 for detecting rotation of the winding roll 26 around which the backing paper 11 of the sheet 10 is wound. The rotation detection unit 44 also serves as a detection unit for detecting the outer diameter (winding diameter) of the take-up roll 26 around which the mount 11 is wound. The rotation detection section 44 is electrically connected to the control section 21 , and the control section 21 controls the sheet feeding mechanism 16 based on the detection result of the rotation detection section 44 .

FIG. 6 is a schematic diagram for explaining the rotary encoder of the winding roll 26 in the embodiment. As shown in FIG. 6, a rotary encoder is used as the rotation detector 44, and has a transmissive optical sensor 44a and a slit disc 44b. The transmissive optical sensor 44a has a light-emitting portion that emits detection light and a light-receiving portion that receives the detection portion emitted by the light-emitting portion, although not shown. The slit disk 44b is fixed to the rotating shaft 26a of the take-up roll 26, and has a plurality of slits 44c formed along the outer peripheral portion thereof in the circumferential direction. The rotation detection unit 44 detects the rotation speed and rotation angle of the rotation shaft 26a of the take-up roll 26 (the take-up roll 26 rotation speed, rotation angle).

When the sheet supply mechanism 16 starts supplying the sheet 10, the rotation detection unit 44 detects a change in the rotational speed of the rotation shaft 26a of the winding roll 26 to which the leading end of the mount 11 is attached. When the rotational speed of the rotary shaft 26a detected by the rotation detection unit 44 reaches or exceeds a predetermined speed, the control unit 21 determines that a predetermined tension is applied to the sheet 10 sent from the supply roll 23, and labels the sheet 10. Control of the pasting device 3 is started. In other words, when the winding roll 26 starts winding the backing paper 11 , the control unit 21 controls the winding roll 26 to start winding the starting end side on the winding roll 26 based on the rotation speed of the winding roll 26 detected by the rotation detection unit 44 . It is determined whether or not the tension of the mounted mount 11 has reached or exceeded a predetermined tension. As a result, the sheet feeding mechanism 16 can feed the sheet 10 in an appropriate feeding state in which a predetermined tension is applied to the sheet 10 .

In addition, the control unit 21 controls the winding of the mount 11 based on the rotation angle of the rotation shaft 26a of the winding roll 26 (rotation amount of the winding roll 26) detected by the rotation detection unit 44, for example. Calculate the outer diameter of the roll 26 . In this embodiment, the result of calculating the outer diameter of the winding roll 26 based on the detection result of the rotation detection unit 44 is also included in the detection result of the rotation detection unit 44 . When the rotation detection unit 44 detects that the outer diameter of the take-up roll 26 has reached or exceeded a predetermined outer diameter, the control unit 21 separates the front end 12a of the label 12 from the backing paper 11 and reverses the sheet 10. A preliminary peeling operation for feeding the label 12 back onto the backing paper 11 is started, and after the preliminary peeling operation, the sheet feeding mechanism 16 is controlled so that the front end 12 a of the label 12 is peeled off from the backing paper 11 .

By performing the preliminary peeling operation in this manner, the labeling device 3 of the present embodiment can properly affix the label 12 to the blood collection tube 4, so that the occurrence of label 12 affixing failure can be suppressed. Details of control of the preliminary peeling operation by the control unit 21 will be described later.

Further, as described above, the rotation detection unit 44 serves both to detect the tension of the mount 11 when the roll of the mount 11 is started and to detect the outer diameter of the take-up roll 26 . As a result, the label attaching device 3 can suppress an increase in the number of rotation detection units for controlling the sheet feeding mechanism 16, and the configuration of the sheet feeding mechanism 16 can be simplified.

(Structure of printing section)
As shown in FIG. 4, the printing unit 17 includes a thermal head 34 that prints on the label 12, a platen roller 35 that holds the sheet 10 between the thermal head 34 and supports it, and a head holder member that holds the thermal head 34. 36 and . The printing unit 17 sandwiches the label 12 together with the backing paper 11 between the thermal head 34 and the platen roller 35 , and prints the label 12 with the thermal head 34 while feeding the sheet 10 with the platen roller 35 . In addition, the printing unit 17 is not limited to the configuration having the thermal head 34, and may be configured to have an inkjet head, for example.

Note that, as shown in FIG. 3, the labeling apparatus 3 of the embodiment includes a sheet supply mechanism 37 having a manual supply roll 38 and a manual supply mechanism 37 for manually attaching the label 12 to the blood collection tube 4 . and a printing unit 39 for printing on the label 12 supplied from the roll 38 . The sheet supply mechanism 37 and the printing section 39 are configured similarly to the sheet supply mechanism 16 and the printing section 17 described above.

(Configuration of sticking mechanism)
As shown in FIG. 4 , the sticking mechanism 19 includes a sticking roller 41 that rotates along the outer peripheral surface of the blood collection tube 4 to stick the label 12 to the blood collection tube 4 , and a blood collection tube to which the label 12 is stuck by the sticking roller 41 . 4 and a pressure roller 43 for pressing the blood collection tube 4 against the pasting roller 41 . Although not shown, the pasting mechanism 19 includes a support member that supports the blood collection tube 4 supplied from the blood collection tube supply device 2 together with the pressing roller 43 , a rotating mechanism that rotates the pasting roller 41 , and a rotating mechanism that moves the pressing roller 43 . and a moving mechanism.

The pasting roller 41 is arranged downstream of the tip of the peeling member 18 in the feeding direction (X1 direction) of the label 12 . The lower side of the outer peripheral surface of the sticking roller 41 is positioned above the vicinity of the tip of the peeling member 18 , and is arranged on the side opposite to the adhesive 13 side of the label 12 peeled by the peeling member 18 . (see FIG. 10A). Therefore, the lower side of the outer peripheral surface of the sticking roller 41 is located above the vicinity of the front end 12 a of the label 12 peeled from the backing paper 11 by the tip of the peeling member 18 .

The guide roller 42 is arranged below the tip of the peeling member 18 , and the outer peripheral surface of the guide roller 42 faces the outer peripheral surface of the pasting roller 41 . Further, as shown in FIG. 3, below the sticking mechanism 19, there is provided a tray 47 in which the blood collection tubes 4 to which the labels 12 are stuck are stored.

(Preliminary peeling operation)
Control for starting the preliminary peeling operation of the label 12 by the control unit 21 controlling the sheet feeding mechanism 16 will be described below.

As described above, since the torque limiter 33 is provided on the rotating shaft 26a of the winding roll 26 of the sheet supply mechanism 16, the winding amount of the winding roll 26 increases and the outer diameter of the winding roll 26 increases. As a result, the amount of slippage of the take-up roll 26 with respect to the amount of transport of the backing paper 11 by the platen roller 35 increases. Therefore, since the torque of the rotating shaft 26aa of the take-up roll 26 is constant, it acts on the base paper 11 wound by the take-up roll 26 as the outer diameter of the take-up roll 26 around which the base paper 11 is wound increases. The tension tends to decrease gradually.

When the tension of the backing paper 11 falls below a predetermined threshold, when the front end 12a of the label 12 is peeled off by the peeling member 18, the posture of the front end 12a of the label 12 on the backing paper 11 changes, and the blood collection tube 4 is pulled. Defective attachment of the attached label 12 is likely to occur.

Therefore, in the label sticking device 3 of the embodiment, the preliminary peeling operation is started when the tension of the backing paper 11 drops below a predetermined threshold value. Here, the preliminary peeling operation means that after the front end 12a of the label 12 is peeled by the peeling member 18 to a preliminary peeling amount larger than the reference peeling amount as shown in FIG. 7A, for example, the label 12 This refers to the operation of reversing the sheet 10 so as to return the entire sheet 10 onto the mount 11 . As an example, the reference peeling amount is about 3.5 [mm] and the preliminary peeling amount is about 6.5 [mm] to 4.5 [mm]. The preliminary peeling operation may include, for example, a plurality of preliminary peeling operations with different preliminary peeling amounts.

After the preliminary peeling operation, the front end 12a of the label 12 is peeled off, for example, by the reference peeling amount, thereby preventing the label 12 from being stuck poorly. Therefore, the label sticking device 3 does not cause a decrease in the sticking efficiency of the labels 12 as in the case where the preliminary peeling operation is performed for all the labels 12, and the sticking failure of the label 12 is likely to occur. By starting the preliminary peeling operation at a predetermined timing when the label 12 needs to be applied, the label 12 pasting efficiency can be improved.

FIG. 8 is a flowchart for explaining control of the preliminary peeling operation in the embodiment. As shown in FIG. 8, the control unit 21 of the labeling device 3 determines whether the tension of the backing paper 11 is equal to or higher than a predetermined tension threshold based on the rotation speed of the rotation shaft 26a of the winding roll 26 detected by the rotation detection unit 44. It is determined whether or not (step S1). In step S<b>1 , when the tension of the mount 11 is less than the predetermined tension threshold (NO), the control unit 21 repeats determination of the detection result of the rotation detection unit 44 . In step S1, if the tension of the backing paper 11 is equal to or greater than the predetermined tension value (YES), the controller 21 controls the label applying device 3 to start the label 12 applying operation (step S2).

Next, based on the outer diameter of the winding roll 26 detected by the rotation detection unit 44, the control unit 21 determines whether the outer diameter of the winding roll 26 is equal to or greater than a predetermined outer diameter threshold value ( step S3). In step S<b>3 , when the outer diameter of the winding roll 26 is less than the predetermined outer diameter threshold value (NO), the control section 21 repeats determination of the detection result of the rotation detection section 44 . If the outer diameter of the take-up roll 26 is equal to or greater than the predetermined outer diameter threshold (YES), the controller 21 starts the preliminary peeling operation (step S4). After starting the preliminary peeling operation, the control unit 21 continues the preliminary peeling operation for each label 12 until the application of all the labels 12 is completed.

FIG. 9 is a diagram showing changes in the tension of the backing paper 11 as the outer diameter of the winding roll 26 changes. Here, as an example, it is assumed that one roll sheet has 900 labels 12 and the pasting operation is finished when the 900 labels 12 are pasted.

As shown in FIG. 9, the sheet supply mechanism 16 has a constant conveying amount of 30 [mm] during printing of one label 12 from the start to the end of the label 12 sticking operation. In the sheet supply mechanism 16, as the amount of the backing paper 11 wound around the winding roll 26 increases, the outer diameter of the winding roll 26 gradually increases. The rotation angle [deg] of 26a gradually decreases, and the tension of the backing paper 11 gradually decreases. In the embodiment, for example, when the outer diameter of the take-up roll 26 reaches a predetermined threshold value or more and the 600th label 12 is attached, the preliminary peeling operation is started. In other words, in this embodiment, as an example, the preliminary peeling operation is set to start when the tension of the backing paper 11 becomes about 5.4 [N] or less.

As described above, in this embodiment, the preliminary peeling operation is started at the timing when the tension of the backing paper 11 becomes lower than a predetermined threshold as the outer diameter of the winding roll 26 increases (increase in the winding amount of the backing paper 11). It is something to do. Therefore, depending on the dimensions (thickness) and materials of the backing paper 11, the label 12, and the adhesive material 13 included in the sheet 10 to be used, the timing at which the tension of the backing paper 11 becomes equal to or less than a predetermined threshold and the preliminary peeling operation is started is determined. is different. According to this embodiment, the control unit 21 controls the sheet feeding mechanism 16 based on the detection result of the rotation detection unit 44, so that the preliminary peeling operation can be started at an arbitrary timing according to the plurality of types of sheets 10. By setting the control, it is possible to easily cope with the use of a plurality of types of sheets 10 .

In other words, for example, when starting the preliminary peeling operation based on the number of labels 12 attached, the timing for starting the preliminary peeling operation may vary depending on the size of the label 12 of the sheet 10 to be used, the thickness of the backing paper 11, and the like. Variation occurs, and the preliminary peeling operation cannot be started with high accuracy at the timing when the tension of the backing paper 11 becomes equal to or less than a predetermined threshold value. For this reason, when attempting to start the preliminary peeling operation at a predetermined timing, a large number of threshold values must be prepared according to the dimensions of the backing paper 11 of the sheet 10 to be used and the label 12, and the large number of threshold values must be switched. becomes complicated. On the other hand, according to the present embodiment, the preliminary peeling operation is started based on the outer diameter of the take-up roll 26 regardless of the thickness of the backing paper 11 of the sheet 10 to be used. You can start with precision.

Note that the control of the control unit 21 in the embodiment is not limited to the control of starting the preliminary peeling operation based on the outer diameter of the winding roll 26 . The control unit 21 controls the sheet feeding mechanism 16 so as to change the feeding speed of the sheet 10 when the outer diameter of the take-up roll 26 detected by the rotation detection unit 44 is equal to or greater than a predetermined outer diameter threshold value. may With this control, for example, by reducing the feeding speed of the sheet 10, it is possible to correct the operation of peeling the front end 12a of the label 12 by the peeling member 18 by the reference peeling amount according to the tension of the backing paper 11. It is possible to further suppress the occurrence of label 12 sticking failures.

Also, as the tension of the backing paper 11 decreases, the attitude of the front end 12a of the label 12 peeled off from the backing paper 11 changes. Therefore, the control unit 21 corrects the position of the blood collection tube 4 with respect to the front end 12a of the label 12 when the outer diameter of the take-up roll 26 detected by the rotation detection unit 44 exceeds a predetermined outer diameter threshold value. You may control the sticking mechanism 19 so that it may carry out. This control adjusts the attitude of the front end 12a of the new label 12 with respect to the blood collection tube 4, for example, when a new label 12 is affixed so as to overlap the label 12 of the blood collection tube 4 to which the label 12 has already been affixed. Then, by correcting the pasting position of the new label 12 with respect to the label 12 pasted on the blood collection tube 4, the new label 12 can be properly pasted.

Furthermore, after starting the preliminary peeling operation, the control unit 21 may perform control to increase the number of preliminary peeling operations for one label 12 based on the outer diameter of the take-up roll 26 . That is, the control unit 21 starts the preliminary peeling operation when the outer diameter of the take-up roll 26 becomes equal to or greater than the first threshold, and subsequently the outer diameter of the take-up roll 26 becomes equal to or greater than the second threshold. It may be controlled so as to increase the number of preliminary peeling operations at times. As a result, it is possible to further suppress the occurrence of label 12 sticking failure due to a decrease in the tension of the backing sheet 11 . Further, the control unit 21 performs control so as to change the amount of preliminary peeling during the preliminary peeling operation and the reference amount of peeling when the label 12 is attached to the blood collection tube 4 based on the outer diameter of the winding roll 26 . may Such control makes it possible to perform a proper preliminary peeling operation and affixing operation according to a decrease in the tension of the backing paper 11 due to a change in the outer diameter of the take-up roll 26 . The control unit 21 may perform a combination of the above-described multiple types of control, and the occurrence of label 12 sticking failures can be effectively suppressed.

(Method for controlling labeling device)
According to the control method of the label application device 3 of the embodiment, when the rotation detection unit 44 detects that the outer diameter of the take-up roll 26 around which the backing paper 11 is wound becomes equal to or greater than a predetermined outer diameter threshold value, the label The front end 12a of the label 12 is peeled from the backing paper 11 and the sheet 10 is reversed to start a preliminary peeling operation to return the label 12 onto the backing paper 11. After the preliminary peeling operation, the front end 12a of the label 12 is peeled off from the backing paper 11. The sheet feeding mechanism 16 is controlled by the controller 21 as described above.

(program for controlling the labeling device)
When the rotation detector 44 detects that the outer diameter of the take-up roll 26 around which the backing paper 11 is wound has reached or exceeded a predetermined outer diameter threshold value, the program for controlling the label application device 3 of the embodiment Then, the front end 12a of the label 12 is peeled off from the backing paper 11, and the sheet 10 is reversed to return the label 12 onto the backing paper 11, thereby starting a preliminary peeling operation. The control unit 21 controls the sheet feeding mechanism 16 so that the sheet is separated from the sheet.

(Effect of Example)
The labeling apparatus 3 of the embodiment includes a sheet supply mechanism 16 having a winding roll 26, a rotation detection section 44 for detecting the outer diameter of the winding roll 26, and a control section 21 for controlling the sheet supply mechanism 16. , provided. When the rotation detection unit 44 detects that the outer diameter of the take-up roll 46 has reached or exceeded a predetermined outer diameter threshold value, the control unit 21 separates the front end 12a of the label 12 from the backing paper 11 and removes the sheet 10 . is reversed to start a preliminary peeling operation to return the label 12 onto the backing paper 11 , and after the preliminary peeling operation, the sheet feeding mechanism 16 is controlled to peel off the front end 12 a of the label 12 from the backing paper 11 . As a result, the label applicator 3 can start the preliminary peeling operation at the timing when the tension of the backing paper 11 becomes smaller as the outer diameter of the take-up roll 26 increases and label 12 sticking failure tends to occur. , the occurrence of label 12 sticking failure can be prevented. Moreover, the label sticking device 3 can improve the sticking efficiency of the labels 12 by avoiding performing the preliminary peeling operation on all the labels 12 on the roll sheet.

Further, when the winding roll 26 starts winding the backing paper 11, the control unit 21 of the label applying device 3 of the embodiment detects the winding speed based on the rotation speed of the winding roll 26 detected by the rotation detection unit 44. It is determined whether or not the tension of the backing paper 11 wound on the take-up roll 26 at the starting end side has reached or exceeded a predetermined tension. As a result, the rotation detection unit 44 serves both to detect the outer diameter of the take-up roll 26 and to detect the tension of the backing paper 11 when the backing paper 11 starts to be wound. An increase in the number of detection units can be suppressed, and the configuration of the sheet feeding mechanism 16 can be simplified.

Further, the control unit 21 of the label application device 3 of the embodiment controls the feeding speed of the sheet 10 when the outer diameter of the take-up roll 26 detected by the rotation detection unit 44 reaches or exceeds a predetermined outer diameter threshold value. Control the sheet feeding mechanism 16 to change. As a result, the operation of peeling the front end 12a of the label 12 by the peeling member 18 by the reference peeling amount can be corrected according to the tension of the backing paper 11, and the occurrence of label 12 sticking failure can be further suppressed.

Further, when the outer diameter of the take-up roll 26 detected by the rotation detector 44 reaches or exceeds a predetermined outer diameter threshold value, the controller 21 of the label applying device 3 of the embodiment controls the front end 12a of the label 12. The sheet supply mechanism 16 is controlled so as to correct the position of the blood collection tube 4 . As a result, for example, when a new label 12 is affixed so as to overlap the label 12 of the blood collection tube 4 to which the label 12 has already been affixed, the posture of the front end 12a of the new label 12 with respect to the blood collection tube 4 can be adjusted. By correcting the pasting position of the new label 12 with respect to the label 12 pasted on the blood collection tube 4, the new label 12 can be properly pasted.

1 Blood collection tube preparation device 3 Labeling device 4 Blood collection tube (cylinder)
10 sheet 11 mount (base material)
REFERENCE SIGNS LIST 12 label 12a front end 12b rear end 13 adhesive 16 sheet supply mechanism (feed mechanism)
17 printing unit 18 peeling member 19 pasting mechanism 21 control unit 23 supply roll 26 winding roll 44 rotation detection unit (detection unit)

Claims

a feeding mechanism having a supply roll around which a sheet having a label provided on a base material via an adhesive is wound, and a winding roll around which the base material of the sheet supplied from the supply roll is wound; ,
a printing unit that prints on the label;
a peeling member for peeling the label from the base material of the sheet fed by the feeding mechanism;
an affixing mechanism for affixing the label, the front end of which is peeled from the base material in the feeding direction of the sheet, along the outer peripheral surface of the cylindrical body;
a detection unit for detecting the outer diameter of the winding roll around which the base material is wound;
A control unit that controls the feed mechanism,
The control unit separates the front end of the label from the base material and reversely feeds the sheet when the detection unit detects that the outer diameter of the take-up roll has reached or exceeded a predetermined outer diameter. to start a preliminary peeling operation to return the label onto the substrate, and after the preliminary peeling operation, the feeding mechanism is controlled to peel the front end of the label from the substrate.
When the winding roll starts winding the base material, the control unit controls the rotation speed of the winding roll detected by the detection unit, based on the rotation speed of the winding roll, the starting end side of which is wound on the winding roll. Determining whether the tension of the base material is equal to or higher than a predetermined tension,
2. Labeling device according to claim 1.
The control unit controls the feed mechanism to change the speed of feeding the sheet when the outer diameter of the winding roll detected by the detection unit reaches or exceeds a predetermined outer diameter.
2. Labeling device according to claim 1.
The control unit corrects the position of the cylinder with respect to the front end of the label when the outer diameter of the winding roll detected by the detection unit exceeds the predetermined outer diameter. to control the
2. Labeling device according to claim 1.
The cylindrical body is a blood collection tube,
2. Labeling device according to claim 1.
a feeding mechanism having a supply roll around which a sheet having a label provided on a base material via an adhesive is wound, and a winding roll around which the base material of the sheet supplied from the supply roll is wound; a printing unit for printing on the label; a peeling member for peeling the label from the base material of the sheet fed by the feeding mechanism; A control method for a label applicator comprising: a sticking mechanism for sticking the label along the outer peripheral surface of a cylindrical body; and a control section for controlling the feed mechanism,
When the detection unit detects that the outer diameter of the take-up roll on which the base material is wound has reached or exceeded a predetermined outer diameter, the front end of the label is peeled from the base material and the sheet is reversed. starting a preliminary peeling operation to feed and return the label onto the substrate, and after the preliminary peeling operation, controlling the feeding mechanism by the control unit so as to peel the front end of the label from the substrate; A method of controlling a pasting device.
a feeding mechanism having a supply roll around which a sheet having a label provided on a base material via an adhesive is wound, and a winding roll around which the base material of the sheet supplied from the supply roll is wound; a printing unit for printing on the label; a peeling member for peeling the label from the base material of the sheet fed by the feeding mechanism; A program for controlling a label applicator comprising: a sticking mechanism for sticking the label along the outer peripheral surface of a cylindrical body; and a control unit for controlling the feeding mechanism,
When the detection unit detects that the outer diameter of the take-up roll on which the base material is wound has reached or exceeded a predetermined outer diameter, the front end of the label is peeled from the base material and the sheet is reversed. A preliminary peeling operation for feeding the label back onto the substrate is started, and after the preliminary peeling operation, causing the control unit to control the feeding mechanism so as to peel the front end of the label from the substrate. ,program.