Labeling device, labeling device control method and program

Abstract

To make it possible to appropriately determine a state of a labeling device.SOLUTION: A labeling device adsorbs a transported label and moves it toward an adherend, and bonds the label to the adherend. The labeling device comprises: an adsorption part which adsorbs the label; a negative pressure detection part which detects a negative pressure value corresponding to an adsorption force generated by the adsorption part when the labels are sequentially adsorbed by the adsorption part, or a light detection part which detects an amount of reflected light from the label in the suction part; a determination part which determines a state of the labeling device on the basis of a detection value in the negative pressure detection part or the light detection part and at least one threshold; and a threshold setting part which changes at least one threshold on the basis of an operation input by an operator.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a label application device, a control method for a label application device, and a program. [Background technology]

[0002] Patent Document 1 discloses a label application device that includes an adsorption plate having a plurality of suction holes formed therein, holds a label on the adsorption plate, and applies the label to an object.

[0003] The label peeled off from the backing paper is attracted to the adhesive surface by an adhesive force set at a low pressure and moves from the edge of the adhesive surface toward the center of the adhesive surface, and when it reaches the position of the reflected light sensor on the adhesive surface, it is held on the adhesive surface of the adhesive plate by an adhesive force set at a high pressure. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 6-278732 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the labelling device described in Patent Document 1, for example, if the performance of the reflected light sensor acting as a detection unit for detecting a label deteriorates, even if a detection light intensity sufficient to distinguish whether a label is present or not can be maintained, if an intensity exceeding a detection light threshold preset in the labelling device for determining whether a label is present or not is not obtained, it will be determined that the label is not detected in the labelling device, and this will be treated as a label detection error.

[0006] For this reason, it has been desirable to be able to appropriately determine the state of the label application device even if the detected value in the detection section changes from an initial set value.

[0007] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to make it possible to appropriately determine the state of a label application device. [Means for solving the problem]

[0008] According to one aspect of the present invention, there is provided a label application device which adsorbs a label being conveyed, moves towards an object to be adhered, and affixes the label to the object, comprising an adsorption section which adsorbs the label, a negative pressure detection section which detects a negative pressure value corresponding to an adsorption force generated in the adsorption section as the labels are successively adsorbed to the adsorption section, or a light detection section which detects the amount of light reflected from the label at the adsorption section, a determination section which determines a state of the label application device based on the detection value in the negative pressure detection section or the light detection section and at least one threshold value, and a threshold setting section which changes the at least one threshold value based on an operational input from an operator. Effect of the Invention

[0009] According to an aspect of the present invention, at least one of the threshold values ​​used when determining the state of the labeling device based on the detection value in the negative pressure detection unit or the detection value in the light detection unit can be changed based on an operation input from an operator, thereby making it possible to appropriately determine the state of the labeling device. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram of a label application device and a label printing device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a configuration diagram illustrating a suction unit and a main body unit of the label attachment device. [Diagram 3] FIG. 3 is a plan view of the periphery of a suction unit of the label application device and a turning plate of the label printing device, as viewed from the adherend side. [Figure 4] FIG. 4 is a flow chart illustrating the suction process in the control section of the label application device. [Diagram 5]FIG. 5 is a schematic diagram illustrating a state in which a label is conveyed while being attracted to an attraction portion. [Figure 6] FIG. 6 is a schematic diagram illustrating a state in which the continuous label web has been conveyed to a position where all the openings of the labels except for the last row of the suction portions are closed. [Figure 7] FIG. 7 is a schematic diagram illustrating a state in which the label is attracted to and held by the suction portion. [Figure 8] FIG. 8 is a diagram illustrating the behavior of the pressure detected in the suction unit of the labeling device and the control signal of the negative pressure control unit. [Figure 9] FIG. 9 is a configuration diagram for explaining the functional configuration of the control unit of the labeling device. [Figure 10] FIG. 10 is a schematic diagram illustrating two threshold values ​​set in this embodiment and detection values ​​in the light detection unit. [Figure 11] FIG. 11 is a schematic diagram illustrating the cleaning determination threshold value set in this embodiment and the detection value in the light detection unit. [Figure 12] FIG. 12 is a diagram illustrating a change in the suction force generated in the suction portion and two threshold values ​​that are set for the suction force generated in the suction portion. [Figure 13] FIG. 13 is a flowchart illustrating the suction error determination process executed by the label application device. [Figure 14] FIG. 14 is a flow chart illustrating the process of setting the first and second attraction thresholds executed by the label application device. [Figure 15] FIG. 15 is a schematic diagram illustrating the decrease determination threshold value set in this embodiment and the negative pressure value detected by the pressure detection unit. [Figure 16] FIG. 16 is a schematic diagram illustrating an example of a management system including a label attachment device. [Figure 17] FIG. 17 is a diagram illustrating an example of the status log. [Figure 18] FIG. 18 is a diagram illustrating an event log folder created by the log creating unit. [Figure 19]FIG. 19 is a diagram for explaining data that is generated by the display data generating unit and that compares and displays various values ​​at two points in time. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The embodiments described below are not limited to the drawings which are illustrated by the brief description of the drawings.

[0012] A first aspect of the present invention is a label application device that adsorbs a label being conveyed, moves it toward an object to be adhered, and affixes the label to the object, comprising an adsorption unit that adsorbs the label, a negative pressure detection unit that detects a negative pressure value corresponding to an adsorption force generated in the adsorption unit as the labels are successively adsorbed to the adsorption unit, or a light detection unit that detects the amount of light reflected from the label in the adsorption unit, a determination unit that determines a state of the label application device based on the detection value in the negative pressure detection unit or the light detection unit and at least one threshold value, and a threshold setting unit that changes the at least one threshold value based on an operational input from an operator.

[0013] According to a first aspect of the present invention, at least one threshold value used when determining the state of the labeling device based on the detection value in the negative pressure detection unit or the detection value in the light detection unit can be changed based on operational input from an operator.

[0014] Therefore, according to the first aspect of the present invention, even if the detection value in the detection section varies from the initial set value, the state of the label application device can be appropriately determined.

[0015] A second aspect of the present invention is the label application device according to the first aspect, wherein the thresholds include a first reflected light threshold and a second reflected light threshold, the first reflected light threshold being a value used to detect the presence or absence of the label, and the second reflected light threshold being a value exceeding the first reflected light threshold, and the label application device further includes an error signal generating unit that generates an error signal indicating a degradation in performance of the reflected light sensor when the determination unit determines that the detection value falls below the second reflected light threshold.

[0016] According to a second aspect of the present invention, when the judgment unit determines that the detection value falls below the second reflected light threshold, the error signal generation unit generates an error signal indicating a degradation in performance of the reflected light sensor.

[0017] Therefore, according to the second aspect of the present invention, it is possible to notify the operator that it is time to replace the reflected light sensor.

[0018] A third aspect of the present invention is the label application device according to the second aspect, wherein the error signal generating unit generates the error signal when an average value of a predetermined number of the detection values ​​while detecting the label falls below the second reflected light threshold.

[0019] According to a third aspect of the present invention, the error signal is generated when an average value of a predetermined number of detection values ​​while detecting the label falls below a second reflected light threshold value.

[0020] Therefore, according to a third aspect of a certain aspect of the present invention, even if there is variation in the detection value when detecting a label, it is possible to accurately capture the tendency for the detection value to fall below the second reflected light threshold, and to appropriately notify the operator that it is time to replace the reflected light sensor.

[0021] A fourth aspect of the present invention is the label application device according to the first aspect, further comprising an error signal generating unit which generates an error signal to notify of a cleaning request when the threshold value is a cleaning judgment threshold value which judges whether or not cleaning of the suction portion is required, and the judgment unit judges that the detection value exceeds the cleaning judgment threshold value when the label application device is powered on and / or when an error state of the label application device is released.

[0022] According to a fourth aspect of the present invention, a cleaning judgment threshold is set to determine whether cleaning is necessary, and when the judgment unit determines that the detection value exceeds the cleaning judgment threshold when it is clear that there is no label in the suction unit, an error signal is generated to notify a cleaning request.

[0023] Therefore, according to the fourth aspect of the present invention, it is possible to conveniently notify the operator that it is time to clean the reflected light sensor.

[0024] A fifth aspect of the present invention is a label application device according to the first aspect, wherein the thresholds include a first suction threshold and a second suction threshold greater than the first suction threshold, the suction section has a plurality of openings arranged along the label transport direction and sequentially suctions the labels being transported from their ends, the negative pressure detection section detects a negative pressure value corresponding to an adhesive force generated in the suction section as the labels are sequentially suctioned to the suction section, and the label application device further includes an error signal generation section that generates an error signal when the determination section determines that the detected negative pressure value does not exceed the first suction threshold at the end of a first judgment period, or when the determination section determines that the detected negative pressure value has been below the second suction threshold for a predetermined period of time or more within a second judgment period set after the first judgment period.

[0025] According to a fifth aspect of the present invention, when labels are sequentially adsorbed to an adsorption portion having a plurality of openings, an error is reported when the judgment portion determines that the negative pressure value does not exceed the first adsorption threshold value after the first judgment period has elapsed, or when the judgment portion determines that the negative pressure value has been below the second adsorption threshold value for a predetermined period of time or more within the second judgment period.

[0026] Therefore, according to the fifth aspect of the present invention, since the error determination is performed based on two threshold values, the accuracy of determining whether or not the label is held by the suction part is improved, and therefore the speed of the label attachment operation can be improved.

[0027] A sixth aspect of the present invention is the label application device described in the fifth aspect, wherein the threshold setting unit sets the first suction threshold based on the negative pressure value corresponding to the suction force generated in the suction section when all openings except one of the plurality of openings are blocked, and sets the second suction threshold based on the negative pressure value corresponding to the suction force generated in the suction section when all of the plurality of openings are blocked.

[0028] According to a sixth aspect of the present invention, the first adsorption threshold is set based on a negative pressure value detected when all openings except one of the multiple openings are blocked, and the second adsorption threshold is set based on a negative pressure value detected when all of the multiple openings are blocked.

[0029] Therefore, according to the sixth aspect of the present invention, the first and second adsorption thresholds can be set more accurately and appropriately than when set by an operator.

[0030] A seventh aspect of the present invention is a label application device according to the first aspect, wherein the threshold value is a decrease judgment threshold value for judging a decrease in a negative pressure value corresponding to an adhesive force generated in the suction section, the suction section has a plurality of openings arranged along a conveying direction of the label and sequentially adsorbs the conveyed label from an end of the label, and the judgment section is further provided with an error signal generating section that generates an error signal when the judgment section judges that an average value of the sum of a predetermined number of the negative pressure values ​​corresponding to the adhesive force generated in the suction section when all of the plurality of openings are blocked falls below the decrease judgment threshold value.

[0031] According to a seventh aspect of the present invention, labels are sequentially adsorbed to an adsorption portion having a plurality of openings, and when it is determined that the average value of the sum of a predetermined number of negative pressure values ​​detected in the adsorption portion when all the openings are blocked falls below a decrease determination threshold, an error signal is generated.

[0032] Therefore, according to a seventh aspect of a certain aspect of the present invention, even if there is variation in the detected negative pressure values, it is possible to accurately capture the tendency for the negative pressure values ​​to fall below the decrease judgment threshold, and to appropriately notify the operator that it is time to replace the negative pressure generating unit.

[0033] An eighth aspect of the present invention is a label application device according to the first aspect, comprising a communication unit which transmits data to a management server connected to a network, and a transmission control unit which transmits the detection value detected by the negative pressure detection unit or the light detection unit to the management server via the communication unit.

[0034] According to an eighth aspect of the present invention, the detection value is transmitted via the communication unit to a management server connected to the network.

[0035] Therefore, according to an eighth aspect of the present invention, the detected value in the label application device becomes available in the management server.

[0036] A ninth aspect of the present invention is a label application device according to the first aspect, further comprising a communication unit that receives data from a management server connected to a network, and the threshold setting unit changes the threshold based on a setting value received from the management server via the communication unit.

[0037] According to a ninth aspect of the present invention, the threshold value for determining the state of the label application device is changed based on a setting value received from a management server connected to the network.

[0038] Therefore, according to a ninth aspect of the present invention, the threshold value of the label application device can be changed via a network.

[0039] A tenth aspect of the present invention is the label application device according to the first aspect, comprising: a status log storage unit that stores a status log having the detection value and the at least one threshold value each time a state of the label application device changes; and a log creation unit that, when a specified event occurs, extracts from the status log the detection value at the time the specified event occurred and the at least one threshold value that was set when the specified event occurred to create an event log.

[0040] According to a tenth aspect of the present invention, a status log having a detection value and a threshold value is stored in the status log memory unit each time a change in the state of the label application device occurs, and a log creation unit extracts from the status log the detection value when a specified event occurs and the threshold value that was set when the specified event occurred, and creates an event log.

[0041] Therefore, according to a tenth aspect of the present invention, it becomes easier for an operator to grasp the state of the label application device when a specified event occurs in the label application device, and this can be effectively used as feedback for changing settings and thresholds.

[0042] In addition, an eleventh aspect of the present invention is the label application device according to the first aspect, comprising: a status log memory unit that stores a status log having the detection value and the at least one threshold value each time a state of the label application device changes; and a display data generation unit that extracts the detection value acquired at any first timing and the at least one threshold value acquired at the arbitrary first timing, and the detection value acquired at any second timing and the at least one threshold value acquired at the arbitrary second timing from the status log, and generates data for displaying these in an overlaid manner.

[0043] According to an eleventh aspect of an embodiment of the present invention, a detection value and a threshold value obtained at an arbitrary first timing and a detection value and a threshold value obtained at an arbitrary second timing are extracted from a status log and data is generated for displaying them in an overlaid manner.

[0044] Therefore, according to an eleventh aspect of the present invention, it becomes easier for an operator to grasp the state of the label application device at a first timing and the state of the label application device at a second timing, allowing for suitable feedback when changing settings and thresholds.

[0045] A twelfth aspect of the present invention is a method for controlling a label application device that comprises an adhesion unit that adheres labels, and a negative pressure detection unit that detects a negative pressure value corresponding to the adhesion force generated in the adhesion unit as the labels are successively adhered to the adhesion unit, or a light detection unit that detects the amount of light reflected from the label at the adhesion unit, and that adheres the labels to the adherend by adhering the labels to the adherend, the method comprising: determining a state of the label application device based on the detection value of the negative pressure detection unit or the light detection unit and at least one threshold value; and changing the at least one threshold value based on an operation input by an operator.

[0046] According to a twelfth aspect of a certain aspect of the present invention, at least one threshold value used when determining the state of the label application device based on the detection value in the negative pressure detection unit or the detection value in the light detection unit can be changed based on operational input from an operator.

[0047] Therefore, according to the twelfth aspect of the present invention, even if the detection value in the detection section varies from the initial set value, the state of the label application device can be appropriately determined.

[0048] In addition, a thirteenth aspect of the present invention is a computer-executable program for a label application device comprising an adsorption unit for adsorbing labels, and a negative pressure detection unit for detecting a negative pressure value corresponding to the adsorption force generated in the adsorption unit as the labels are sequentially adsorbed to the adsorption unit, or a light detection unit for detecting the amount of light reflected from the label in the adsorption unit, and which adsorbs a label being conveyed, moves it towards an object to be adhered, and affixes the label to the object, the program causing the computer to execute a procedure for determining a state of the label application device based on the detection value in the negative pressure detection unit or the light detection unit and at least one threshold value, and a procedure for changing the at least one threshold value based on an operation input from an operator.

[0049] According to a thirteenth aspect of a certain aspect of the present invention, at least one threshold value used when determining the state of the label application device based on the detection value in the negative pressure detection unit or the detection value in the light detection unit can be changed based on operational input from an operator.

[0050] Therefore, according to a thirteenth aspect of the present invention, even if the detection value in the detection section varies from the initial set value, the state of the label application device can be appropriately determined.

[0051] [Explanation of label application device and label printing device] FIG. 1 is a schematic diagram illustrating a label attachment device 1 according to an embodiment of the present invention.

[0052] The label application device 1 according to this embodiment is a device that holds a conveyed label L by suction and applies it to an adherend. The label application device 1 is provided alongside a label printing device 100. After a label is printed by the label printing device 100, the label application device 1 holds the label L conveyed from the label printing device 100 and applies it to an adherend A.

[0053] In this embodiment, a continuous label web ML having a plurality of labels L on a long backing sheet S is used. In this embodiment, the label L affixed to the adherend A by the label application apparatus 1 is the label L printed by the label printing apparatus 100.

[0054] In this embodiment, the label L is thermal paper having a thermal coloring layer formed on its surface, which changes color when heated, and can be printed on by a so-called direct thermal printer.

[0055] In this embodiment, the label printing device 100 is provided next to the label sticking device 1 and configured to cooperate with the label sticking device 1. In addition, the label sticking device 1 and the label printing device 100 are provided next to a conveying device 200 that conveys the adherend A.

[0056] The label sticking device 1 in this embodiment may have a function as a label printing device that prints on a label. A label sticking device having a function of printing on a label is also included in the label sticking device. In another aspect, the label printing device may have a function of sticking a label. Such a printing device is also included in the label sticking device.

[0057] <Label printer> First, a description will be given of the label printing device 100. The label printing device 100 is an example of a direct thermal printer.

[0058] As shown in FIG. 1, the label printing device 100 includes a printing unit 110 that prints on labels L arranged on a continuous label web ML, a supply unit 120 that supplies the continuous label web ML to the printing unit 110, a peeling mechanism 130 that peels the labels L from the continuous label web ML, and a backing paper winding unit 140 that winds up unnecessary backing paper S.

[0059] The printing unit 110 includes a thermal head 111 that prints on the continuous label web ML, and a platen roller 112 that holds and transports the continuous label web ML between the thermal head 111 and the platen roller 112.

[0060] The platen roller 112 holds the continuous label web ML between itself and the thermal head 111, and conveys the continuous label web ML in a conveying direction F by being driven to rotate.

[0061] A continuous label web ML is set in the supply unit 120. Fig. 1 shows a state in which the continuous label web ML is wound so that the labels L are arranged on the inside, that is, a so-called "inner-wound roll" is applied. The continuous label web ML unwound from the supply unit 120 is transported to the printing unit 110.

[0062] Furthermore, the label printer 100 includes a guide roll 113 and a damper unit 114 between the supply unit 120 and the printing unit 110 .

[0063] The guide roll 113 guides the continuous label web ML to the printing unit 110 while applying a predetermined tension to the continuous label web ML.

[0064] The damper unit 114 has a plate-like member with a curved surface on which the continuous label web ML can slide. The damper unit 114 can convey the continuous label web ML while applying a predetermined tension. When an inwardly wound roll is used, the damper unit 114 is disposed so as to abut and slide against the back side of the backing sheet S (the side on which the labels L are not temporarily attached).

[0065] The peeling mechanism 130 includes a turning plate 131 for peeling the liner S from the label web ML, and a support member 132 for supporting the liner S that has been peeled off.

[0066] The turning plate 131 turns only the backing sheet S in the direction opposite to the conveying direction F of the label L.

[0067] As the liner S is wound up by the liner winding section 140 , it is turned by the turning plate 131 to a direction B opposite to the conveying direction F of the label L, peeled off from the label L, and wound up by the liner winding section 140 .

[0068] The label printer 100 also includes a control unit 150. The control unit 150 is configured with a microcomputer including a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), an input / output interface (I / O interface), and the like.

[0069] The control unit 150 performs various processes such as printing on the labels L and transporting the continuous label strip ML associated with printing by having the CPU read and execute programs stored in the ROM. The control unit 150 can also be composed of multiple microcomputers.

[0070] The control unit 150 is connected to an external device via wire or wirelessly so as to be able to communicate with the external device. In this embodiment, the external device is the label application device 1 and the conveying device 200. The label printing device 100 can transmit control signals related to printing and conveying the label L to the label application device 1 and the conveying device 200.

[0071] The label printer 100 has a display unit 160. In this embodiment, the display unit 160 is a display with a touch panel that can input operations to the label printer 100 and display information related to the label printing operation.

[0072] In this embodiment, the display unit 160 can also display various threshold values ​​set in the label attachment device 1 described later and detection values ​​detected by various sensors. It also functions as a notification unit that notifies an error based on an error signal generated by an error signal generation unit 263 (FIG. 9) described later.

[0073] According to the label printer 100 having the above-mentioned configuration, the continuous label web ML is transferred to the peeling mechanism 130 after printing is performed at a predetermined position on the label L of the continuous label web ML supplied from the supply unit 120.

[0074] In the peeling mechanism 130, the backing sheet S is redirected at a redirecting plate 131 and is wound up while being pulled by a backing sheet winding section 140.

[0075] On the other hand, due to the difference in rigidity between the label L and the backing paper S and the strength of the adhesive force of the adhesive layer of the label L, the label L is peeled off from the backing paper S from the downstream end Ld of the label L to the upstream end Lu of the label L without being folded in the opposite direction of the conveying direction F together with the backing paper S.

[0076] The upstream end Lu of the label L is still attached to the liner S. Therefore, the downstream end Ld of the label L that has already been peeled off is sent out in the conveying direction F at the conveying speed of the liner S (winding speed).

[0077] The label L peeled off from the backing sheet S is delivered to the suction unit 10 of the label application device 1 at the same speed as the backing sheet S is transported.

[0078] After printing on the labels L is completed, the label printer 100 conveys the continuous label web ML a predetermined distance to a position where the transfer of the labels L to the suction unit 10 of the label application device 1 is completed.

[0079] In this embodiment, this specified distance is the transport distance of the label web ML from the position where printing on the printing area of ​​the label L is completed to a position where the upstream end Lu of the label L is attached to the backing sheet S and the label L can completely block the last row of the openings 13 of the suction section 10 (see Figure 3).

[0080] The label printing device 100 transmits to the label application device 1 a signal indicating that the continuous label strip ML has been conveyed up to this predetermined distance.

[0081] In addition, the label printing device 100 transmits a signal to the label application device 1 indicating that the label strip ML has been transported a distance shorter than the above-mentioned predetermined distance, i.e., a distance to a position where all of the openings 13 (see Figure 3) except for the last row of openings 13 are blocked.

[0082] In this embodiment, a distance shorter than the predetermined distance is referred to as a first distance, and the predetermined distance is referred to as a second distance.

[0083] In this embodiment, the first distance and the second distance can be set according to the dimension of the label L in the longitudinal direction and the print range that can be set on the label L.

[0084] In addition, when the suction unit 10 is in a position to wait for the label L from the label printer 100, the distance G (see FIG. 3) between the suction unit 10 and the turning plate 131 can be adjusted according to the longitudinal dimension of the label L. In addition, the dimension of the suction unit 10 can be changed according to the dimension of the label L, or can be appropriately replaced with one that matches the dimension of the label L.

[0085] <Label attachment device> Next, the label application device 1 according to this embodiment will be described.

[0086] In this embodiment, the label application device 1 shown in FIG. 1 is provided next to a label printing device 100, and is a device that adsorbs the label L that is printed by the label printing device 100 and then transported thereto, moves the label L toward the substrate A, and applies the label to the substrate A.

[0087] The label application device 1 includes a suction unit 10 that suctions the labels L being conveyed, and a main body unit 20 that performs the suction operation of the labels L in the suction unit 10 and the operation of applying the labels L to the adherends A.

[0088] 2 is a configuration diagram illustrating the suction section 10 and the main body section 20 of the label application device 1. The main body section 20 includes a suction unit 21 and a drive unit 22.

[0089] (Suction unit) The suction unit 21 generates a negative pressure in the suction part 10 so that the label L is suctioned to the suction part 10. In addition, the drive unit 22 drives the suction part 10 so that the label L suctioned to the suction part 10 is affixed to the adherend A.

[0090] The adsorption unit 21 includes a compressor 211 , a pressure control unit 212 , a first control valve 213 , a second control valve 214 , a negative pressure generating unit 215 , a pressure detecting unit 216 , and a control unit 217 .

[0091] The compressor 211 is connected to the pressure control unit 212 by a hose 231. The compressor 211 generates compressed air and supplies it to the pressure control unit 212. The compressor 211 may be provided outside the label application apparatus 1.

[0092] The pressure control unit 212 is connected to the first control valve 213 and the second control valve 214 by a hose 232. The pressure control unit 212 can adjust the pressure of the compressed air sent from the compressor 211 in accordance with a voltage set in the pressure control unit 212, for example.

[0093] The pressure control unit 212 sends the regulated compressed air to the first control valve 213 and the second control valve 214. The regulation of the compressed air in the pressure control unit 212 can be performed, for example, by changing the voltage.

[0094] Furthermore, the pressure control unit 212 is directly connected to the adsorption unit 10 by a hose 233, and can directly send compressed air (positive pressure) adjusted from the compressed air sent from the compressor 211 to the adsorption unit 10.

[0095] The first control valve 213 and the second control valve 214 are connected to a negative pressure generating unit 215 by a hose 234 .

[0096] The first control valve 213 is a control valve for controlling the adjustment of the positive pressure generated in the pressure control unit 212. The first control valve 213 is configured so that the degree of opening and closing of the valve can be adjusted in accordance with a voltage set in the first control valve 213 by the control unit 217.

[0097] In this embodiment, the first control valve 213 is a proportional control valve. The first control valve 213 can continuously change the negative pressure generated in the hose 234 in a range from zero (completely blocked) to the original pressure (fully open) by changing the voltage based on a control signal from the control unit 217.

[0098] This allows the first control valve 213 to adjust the positive pressure air generated in the pressure control section 212 in a stepwise manner.

[0099] The second control valve 214 is a control valve for controlling the adjustment of the positive pressure generated in the pressure control unit 212. The second control valve 214 is configured to be capable of opening and closing (on and off) the valve in accordance with a voltage set in the second control valve 214. This makes it possible to switch between allowing the positive pressure air generated in the pressure control unit 212 to flow to the hose 234 or blocking it.

[0100] In this embodiment, by providing the first control valve 213 and the second control valve 214, when the second control valve 214 is completely closed, the positive pressure can be adjusted by the first control valve 213, and when the first control valve 213 is completely closed, the positive pressure can be adjusted by the second control valve 214.

[0101] The adjustment of the positive pressure in the first control valve 213 , the adjustment of the positive pressure in the second control valve 214 , and the switching between the first control valve 213 and the second control valve 214 are performed by a control unit 217 .

[0102] The negative pressure generating unit 215 is connected to a hose 234 whose opening and closing is controlled by a first control valve 213 and a second control valve 214. The negative pressure generating unit 215 is also connected to the adsorption unit 10 by a hose 235.

[0103] The negative pressure generating unit 215 discharges the air inside the hose 235 and the suction unit 10 by discharging the positive pressure air adjusted by the first control valve 213 and the second control valve 214, thereby generating a predetermined negative pressure inside the hose 235 and the suction unit 10.

[0104] The negative pressure generating unit 215 generates a negative pressure according to a voltage set in the negative pressure generating unit 215, thereby generating a first adhesive force, a second adhesive force, and a third adhesive force in the adhesive unit 10.

[0105] The first suction force generated in the negative pressure generating unit 215 based on the positive pressure from the first control valve 213 is an suction force that is capable of attracting the downstream end Ld of the label L sent out by the label printing device 100 to a part of an opening 13 of the suction unit 10, and that enables the label L to move in the suction unit 10 without falling from the suction unit 10.

[0106] The second suction force generated in the negative pressure generating unit 215 based on the positive pressure from the first control valve 213 is a weaker suction force than the first suction force and is an suction force that enables the label L to move in the suction unit 10.

[0107] Moreover, the negative pressure generating unit 215 generates a third suction force capable of holding the label L on the suction unit 10 based on the positive pressure generated in the second control valve 214 .

[0108] The third suction force generated based on the positive pressure from the second control valve 214 is stronger than the first suction force and is an suction force capable of suctioning and holding the label L on the suction portion 10.

[0109] As described above, the first and second attractive forces can be generated by the first control valve 213 and the negative pressure generating unit 215. Moreover, the second control valve 214 and the negative pressure generating unit 215 can generate a third attractive force.

[0110] The pressure detection unit 216 is a pressure sensor for detecting the pressure generated in the hose 235 .

[0111] In the label attachment device 1 according to this embodiment, as an example of the pressure detection section 216, a pressure sensor that can output the amount of change in pressure generated in the hose 235 as an analog signal of a voltage value or a current value can be used.

[0112] The pressure detection unit 216 successively sends to the control unit 217 a detection value (an analog signal of a voltage value or a current value) based on a change in the negative pressure in the adsorption unit 10 (adsorption unit main body 11, see FIG. 3).

[0113] The control unit 217 generates signals for controlling each of the first control valve 213 and the second control valve 214. In addition, a detection value from the pressure detection unit 216 is input to the control unit 217.

[0114] For example, when the suction part 10 has a label L, the detected voltage value increases as the suction force generated by the suction part 10 increases. On the other hand, when the suction part 10 has no label L, the detected voltage value decreases as the suction force generated by the suction part 10 decreases.

[0115] The control unit 217 converts the analog signal from the pressure detection unit 216 into a digital signal in an A / D converter (not shown).

[0116] In the label application device 1 according to this embodiment, the presence or absence of the label L in the suction part 10 can be detected based on the detection value in the pressure detection part 216.

[0117] As described above, the control unit 217 can control the first control valve 213 and the second control valve 214 to switch the adhesive force generated in the adhesive unit 10 between a first adhesive force, a second adhesive force weaker than the first adhesive force, and a third adhesive force stronger than the first adhesive force, in this order.

[0118] The control unit 217 receives a signal indicating that the label printer 100 has conveyed the label web ML a first distance. Upon receiving this signal, the control unit 217 controls the first control valve 213 to switch from the first suction force to the second suction force.

[0119] The control unit 217 also receives various signals from the label printer 100. As an example, the control unit 217 can receive a signal indicating that the label printer 100 starts printing on the label L. In addition, the control unit 217 can receive a signal indicating that the label printer 100 has transported the continuous label web ML to a first distance or a second distance after the label printer 100 has finished printing on the label L.

[0120] The control unit 217 receives a signal from the label printing device 100 that the label L has been conveyed to a second distance where it covers the opening 13 in the last row in the suction unit 10, and switches from the second suction force to the third suction force.

[0121] (Drive unit) The drive unit 22 has an arm portion 221 that supports the suction portion 10 and a drive portion 222 for driving the arm portion 221 .

[0122] The arm portion 221 is configured to be extendable and retractable relative to the adherend A transported by the transport device 200.

[0123] The drive unit 22 extends the arm portion 221 toward the adherend A in response to a control signal from the control unit 217. As an example, the drive unit 22 is configured to extend the arm portion 221 toward the affixed surface of the adherend A to which the label L is to be attached, after receiving a signal from the control unit 217 indicating that the adsorptive force has been switched from the second adsorptive force to the third adsorptive force.

[0124] (Configuration of the suction part) Next, the suction unit 10 applied to the label application device 1 according to this embodiment will be described.

[0125] As shown in FIG. 2, the adsorption part 10 is provided with a light detection part 14 as a detection part for detecting that the label L has been adsorbed to the adsorption part 10. As shown in FIG.

[0126] In the label attachment device 1 according to this embodiment, a photoelectric sensor can be used as an example of the light detection unit .

[0127] Although not shown, the light detection unit 14 includes a light emitting unit (light emitting element) for irradiating detection light toward the label L, and a light receiving unit (light receiving element) for receiving the detection light reflected by the label L. In other words, the light detection unit 14 is a reflected light sensor that detects the reflected light from the label L.

[0128] The light receiving element may be, for example, a photoconductive element, whose resistance value changes depending on the amount of light that strikes it, and the amount of change can be output as an analog value.

[0129] When there is a label L on the adsorption section 10, that is, when the detection light from the light detection section 14 is reflected by the label L, the reflected detection light hits the light receiving section and the resistance value of the photoconductive element decreases, thereby increasing the detected voltage value.

[0130] On the other hand, when there is no label L on the adsorption portion 10, i.e., when the detection light is not reflected by the label L, the amount of detection light that strikes the light receiving portion decreases, and the resistance value of the photoconductive element increases. This causes the detected voltage value to decrease.

[0131] Therefore, the label application device 1 according to this embodiment can detect the presence or absence of a label in the suction section 10 by the light detection section 14.

[0132] In the following description, a case will be described in which the detection value detected by the light detection unit 14 is a voltage value.

[0133] Fig. 3 is a plan view of the suction unit 10 of the label sticking device 1 and the periphery of the turning plate 131 of the label printing device 100, as viewed from the adherend A side. In Fig. 3, the turning plate 131 is indicated by a two-dot chain line.

[0134] As shown in FIG. 3, the suction part 10 has an suction part main body 11, an suction surface 12 for suctioning the label L, and a plurality of openings 13 formed in the suction surface 12.

[0135] Further, the adsorption surface 12 is formed with a detection opening 15 through which the detection light from the light detection unit 14 and the reflected light reflected by the label L pass.

[0136] The adsorption body 11 is in the shape of a hollow box. Hoses 233 and 235 extending from the adsorption unit 21 are connected to the adsorption body 11, and a negative pressure is generated inside the adsorption body 11 by a first control valve 213, a second control valve 214, and a negative pressure generating unit 215 (FIG. 2).

[0137] The suction unit main body 11 is attached to the tip of the arm unit 221. The arm unit 221 is configured to extend to the vicinity of the surface of the adherend A conveyed by the conveying device 200, to which the label L is to be attached.

[0138] The adsorption surface 12 has a rectangular shape with a planar size at least larger than the size of the label L, and is disposed so as to face the surface of the adherend A to which the label L is attached.

[0139] 3, four rows of three openings 13 are formed at equal intervals along the longitudinal direction of the suction surface 12. In this embodiment, the longitudinal direction of the suction surface 12 coincides with the transport direction F of the label L discharged from the label printer 100.

[0140] According to the label application device 1, the negative pressure generated in the suction portion main body 11 acts on the multiple openings 13, so that a first suction force, a second suction force, and a third suction force can be generated.

[0141] <Transportation equipment> 1, the transport device 200 includes a conveyor 201 that transports an adherend A to which a label L is to be affixed. In addition, although not shown in FIG 1, the transport device 200 includes a control unit that controls the transport of the adherend A, an operation input unit, a display unit, and the like.

[0142] The conveying device 200 is communicably connected to the label application device 1 and the label printing device 100 via an interface (not shown).

[0143] [Adsorption process in label attachment equipment] Fig. 4 is a flow chart for explaining the adsorption process in the control section 217 of the label application device 1. Fig. 5 is a schematic diagram for explaining a state in which the label L is being conveyed while being adsorbed by the adsorption section 10.

[0144] Fig. 6 is a schematic diagram illustrating a state in which the label web ML has been transported to a position in which the labels L close the openings 13 of the suction unit 10 except for the last row. Fig. 7 is a schematic diagram illustrating a state in which the labels L are suctioned and held by the suction unit 10.

[0145] 5, 6 and 7, the turning plate 131 is omitted, and instead, a part of the label L is shown by a two-dot chain line.

[0146] Fig. 8 is a diagram for explaining the behavior of the pressure detected in the suction unit 10 of the label application device 1 and the control signal in the negative pressure generating unit 215. In Fig. 8, the horizontal axis represents time.

[0147] A solid line Y1 shown in FIG. 8 indicates a change in pressure in the adsorption part main body 11 detected by the pressure detection part 216 over time.

[0148] 8, a dashed line Y2 indicates the stepwise voltage control of the first control valve 213. A dashed line Y3 indicates the on / off signal of the second control valve 214.

[0149] The label printer 100 is configured to transport the continuous label web ML up to the above-mentioned first distance and second distance after printing on the label L is completed.

[0150] In step S1 shown in FIG. 4, the control unit 217 in the label application device 1 receives a signal from the label printing device 100 to start printing.

[0151] In step S2, the control unit 217 generates a first adsorptive force in the adsorptive unit 10. That is, the control unit 217 sends a control signal to the first control valve 213 so that the first adsorptive force is generated.

[0152] As shown in FIG. 5, the label L after printing is discharged from the label printing device 100 in the conveying direction F and moves while being attracted sequentially from the downstream end Ld of the label L to the opening 13 of the adsorption section 10 by the first adsorption force.

[0153] In this embodiment, the control unit 217 determines the position of the label L in the suction unit 10 based on the conveyance amount of the label L transmitted from the label printer 100.

[0154] In step S3, the control unit 217 receives a signal from the label printing apparatus 100 indicating that the label L has been conveyed to a first distance.

[0155] In step S4, the control unit 217 switches the suction force generated by the suction unit 10 from the first suction force to the second suction force (S4 in FIG. 8).

[0156] That is, the control unit 217 transmits a control signal to the first control valve 213 so as to switch the suction force generated by the suction unit 10 from the first suction force to the second suction force.

[0157] At this time, as shown in FIG. 6, the label L is in a state where the continuous label strip ML has been transported to a position where the openings 13 of the suction portions 10, except for the last row, are closed.

[0158] Next, in step S5, the control unit 217 receives a signal from the label printing apparatus 100 indicating that the label L has been conveyed to a second distance.

[0159] In step S6, the control unit 217 transmits a control signal to the second control valve 214 so that the third adsorptive force is generated in the adsorptive unit 10 (S6 in FIG. 8).

[0160] As a result, the label L is conveyed to a position where all of the openings 13 in the last row of the suction portions 10 are closed, as shown in FIG.

[0161] In this embodiment, in step S7, the control unit 217 turns off the first control valve 213 after a predetermined period of time Δt has elapsed since receiving a signal indicating that the label L has been transported to the second distance (Δt in FIG. 8).

[0162] Furthermore, the control unit 217 turns on the second control valve 214 which generates the third attractive force before turning off the first control valve 213 which generates the second attractive force.

[0163] That is, when the control unit 217 receives a signal indicating that the label L has been transported to the second distance, it turns on the second control valve 214, and then, after a predetermined period Δt has elapsed since receiving the signal, it controls the first control valve 213 to turn off.

[0164] By generating the third adsorptive force in the adsorption portion 10, the label L is adsorbed and held on the adsorption surface 12 so as not to fall off.

[0165] Furthermore, in step S8, the control unit 217 starts the operation of extending the arm unit 221 toward the adherend A, upon receiving a signal from the label printing device 100 indicating that the label L has been transported the second distance. Note that the operation of extending the arm unit 221 toward the adherend A may start after a predetermined period of time Δt has elapsed since receiving the signal from the label printing device 100 indicating that the label L has been transported the second distance.

[0166] When the arm portion 221 has extended to a predetermined distance from the attachment surface of the adherend A, the control portion 217 switches the pressure control portion 212 so that the compressed air is output to the suction portion 10 in step S9.

[0167] As a result, the inside of the suction part 10 becomes positive pressure, and the label L is blown towards the attachment surface of the adherend A and attached to the attachment surface of the adherend A.

[0168] [Functional configuration of the label attachment device] Next, the functional configuration of the label attachment device 1 will be described.

[0169] FIG. 9 is a functional block diagram illustrating the functional configuration of the label attachment device 1. As shown in FIG.

[0170] The label application device 1 includes a light detection unit 14, a pressure detection unit 216, a control unit 217, a device communication unit 240, a network communication unit 241, and a status log storage unit 250.

[0171] By providing these components, the labeling device 1 can set and change thresholds set in the labeling device 1 and realize various functions.

[0172] The "threshold" in this embodiment includes a threshold of the intensity of the detection light for determining the presence or absence of the label L in the light detection unit 14, and a threshold of the vacuum pressure value (input value) for determining whether the label L is adsorbed to the adsorption unit 10 in the pressure detection unit 216. The "threshold" will be described in detail later.

[0173] The light detection section 14, the pressure detection section 216, and the control section 217 correspond to the light detection section 14, the pressure detection section 216, and the control section 217 shown in FIG.

[0174] The control unit 217 is composed of a microcomputer equipped with a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), an input / output interface (I / O interface), and the like.

[0175] 9, the device communication unit 240 includes a digital I / O connector for transmitting and receiving digital input / output signals to and from an external device, and a communication interface for communicating with the external device, and is communicatively connected to the external device via wire or wirelessly. In this embodiment, the external devices are the label printing device 100 and the conveying device 200.

[0176] The device communication unit 240 can receive control signals in response to input from an operator to the display unit 160, which is a touch panel display provided in the label printing device 100, and can receive signals indicating the status of the label printing device 100 and the conveying device 200.

[0177] The network communication unit 241 is an interface for connecting to a computer or a management server connected to a network, such as an intranet or the Internet, via the network.

[0178] This enables the label application device 1 to transmit the detection value from the light detection unit 14, the negative pressure value detected by the pressure detection unit 216, etc. to the network, and to receive data used in the control unit 217 from the network.

[0179] When a specified event occurs in the label application device 1, the status log memory unit 250 stores, as a status log, the detection value of the light detection unit 14 and / or the pressure detection unit 216 at the time the specified event occurs and at least one threshold value that was set at the time the specified event occurred.

[0180] Furthermore, each time the state of the label application device 1 changes, the status log storage unit 250 stores the detected value of the light detection unit 14 and / or the pressure detection unit 216 and at least one threshold value as a status log.

[0181] The label application device 1 includes a storage unit (not shown) that stores programs executable by the processor of the control unit 217. The status log storage unit 250 may be prepared as a virtual storage area of ​​the storage unit.

[0182] <Explanation of the control unit in the label attachment device> The control unit 217 performs various processes required for attaching the label L to the adherend by causing the CPU to read and execute the programs stored in the ROM.

[0183] Furthermore, the control unit 217 performs processing for changing threshold values ​​of the detection values ​​detected by the light detection unit 14 and the pressure detection unit 216 that are required for various operations set in the label application device 1.

[0184] As shown in FIG. 9, the control unit 217 includes a judgment unit 261, a threshold setting unit 262, an error signal generation unit 263, a log creation unit 264, a display data generation unit 265, and a communication control unit 266 as an example of a functional configuration for the above processing.

[0185] The determination section 261 determines the state of the label application device 1 based on the detection value of the light detection section 14 or the pressure detection section 216 and a predetermined threshold value.

[0186] The threshold setting unit 262 sets a predetermined threshold for determining the state of the label application device based on the detection value of the light detection unit 14 or the pressure detection unit 216. The threshold setting unit 262 also changes the threshold based on an operation input by an operator. One example of the operation input by the operator is an input from the display unit 160, which is a touch panel display of the label printer 100.

[0187] As one example, the error signal generating section 263 generates an error signal for notifying an error that suggests a deterioration in the performance of the reflected light sensor of the light detecting section 14.

[0188] When a specified event occurs in the label application device 1, the log creation unit 264 creates a status log that links the detection value by the light detection unit 14 and / or the pressure detection unit 216 at the time the specified event occurs with the threshold value that was set at the time the specified event occurred.

[0189] The display data generating unit 265 generates data for displaying the status log extracted from the status log storage unit 250 on the display unit 160 of the label printer 100 .

[0190] The communication control unit 266 controls the network communication unit 241 to transmit the detection value in the light detection unit 14, the negative pressure value detected in the pressure detection unit 216, etc. to the network, and to receive data used in the control unit 217 from the network.

[0191] The determination section 261, the threshold setting section 262, the error signal generation section 263, the log creation section 264 and the display data generation section 265 in the control section 217 may be provided in the control unit 150 of the label printing device 100. In addition, they may be provided in a computer other than the label pasting device 1 and the label printing device 100, which is connected to the label pasting device 1 and the label printing device 100.

[0192] [Explanation of functions realized by the labeling device] Next, functions that can be realized in the label sticking device 1 by providing the control unit 217 with the above-mentioned functional configuration will be described.

[0193] <Function to notify of decrease in detection intensity of detection value in light detection unit> The performance of the light-emitting element, which is the light source of the light-emitting part in the light detection unit 14, may deteriorate with use. In this embodiment, the deterioration of the performance of the light-emitting part can be detected as a decrease in the intensity of the detection light incident on the light-receiving part in the light detection unit 14.

[0194] The labeling device 1 according to this embodiment sets a predetermined threshold for the intensity of the detection light (hereinafter referred to as the detection value) incident on the light receiving portion of the light detection unit 14, and issues an alert when the detection value falls below the threshold.

[0195] FIG. 10 is a schematic diagram illustrating two threshold values ​​set in this embodiment and detection values ​​in the light detection unit 14. In FIG.

[0196] The solid line shown in Fig. 10 represents the intensity (detection value) of the detected light in the light detection unit 14. In addition, in Fig. 10, the first reflected light threshold Th1 is indicated by a two-dot chain line, and the second reflected light threshold Th2 is indicated by a one-dot chain line.

[0197] FIG. 10 shows a first period T1 during which a first adsorptive force acts on the adsorptive portion 10, a second period T2 during which a second adsorptive force acts on the adsorptive portion 10, and a third period T3 during which a third adsorptive force acts on the adsorptive portion 10.

[0198] In the label application apparatus 1, the threshold setting section 262 sets a first reflected light threshold Th1 and a second reflected light threshold Th2 as thresholds.

[0199] The first reflected light threshold Th1 is a threshold used to detect the presence or absence of the label L. The second reflected light threshold Th2 is a value that exceeds the first reflected light threshold Th1 and is a threshold used to determine whether the performance of the light detection unit 14 has deteriorated.

[0200] In this embodiment, the error signal generating unit 263 generates an error signal indicating a degradation in performance of the light detecting unit 14 when the determining unit 261 determines that the detection value in the light detecting unit 14 falls below the second reflected light threshold Th2.

[0201] Furthermore, the error signal generating unit 263 may use an average value of a predetermined number of detection values ​​when the light detecting unit 14 detects the label L. When the average value of the detection values ​​falls below the second reflected light threshold Th2, an error signal is generated.

[0202] By using the average value, even if there is variation in the detection value when detecting the label L, it is possible to accurately capture the tendency of the detection value to be below the second reflected light threshold value Th2.

[0203] The first period T1 is a period during which a first suction force is applied to the suction section 10, which enables the downstream end Ld of the label L sent out by the label printing device 100 to be attracted to a partial opening 13 of the suction section 10 and enables the label L to move in the suction section 10 without falling from the suction section 10.

[0204] The second period T2 is a period during which a second attractive force, which is weaker than the first attractive force and enables the label L to move in the attractive portion 10, is applied to the attractive portion.

[0205] The third period T3 is a period during which a third adsorptive force capable of holding the label L on the adsorptive part 10 is applied to the adsorptive part 10.

[0206] FIG. 10 also shows that when the end of the label L printed by the printing operation of the label printing device 100 reaches the detection opening 15, the detection light reflected from the label L is detected by the light detection unit 14, and the intensity of the detection value shown by the solid line is increased.

[0207] 10 shows that when the light detection unit 14 is in a normal state, the detection value exceeds the second reflected light threshold Th2. On the other hand, when the performance of the light detection unit 14 is degraded, the detection value falls below the second reflected light threshold Th2.

[0208] In this embodiment, when the performance of the light detection unit 14 deteriorates and the upper limit value of the intensity of the detection value falls below the second reflected light threshold value Th2, an error signal is generated. This makes it possible to display on the display unit 160, based on the error signal, that it is time to replace the light detection unit 14.

[0209] In this embodiment, the second reflected light threshold Th2 can be increased or decreased by an operator's operation input. For example, by setting the second reflected light threshold Th2 high, a decrease in the peak of the detection value can be detected at an early timing. This makes it possible to notify the operator of the time to replace the light detection unit 14 earlier than the allowable period of use.

[0210] Furthermore, by setting the second reflected light threshold Th2 low, it is possible to delay the timing at which the decrease in the upper limit of the intensity of the detection value is detected, thereby enabling the light detection unit 14 to be used over the permitted usage period.

[0211] In addition, in this embodiment, as an example, the error signal generating unit 263 generates an error signal when the average of the last 10 detection values ​​when the light detecting unit 14 detects the label L falls below the second reflected light threshold Th2. The detection value when the label L is not detected causes a large decrease in the average detection value, thereby decreasing the accuracy of the performance degradation determination.

[0212] For this reason, the detection value when the label L is not detected is stored in the status log storage unit 250 as a status log, but it is preferable that it is not used to calculate the average value of the detection values.

[0213] As a result, the label application device 1 can detect a decrease in the performance of the light-emitting unit (light source) in the light detection unit 14, and can notify the operator that the light-emitting unit (light source) is nearing the time to replace it or that the light-emitting unit has malfunctioned.

[0214] When the light detection section 14 is evaluated based on the resistance value of the light receiving element in the light detection section 14, the relationship between the increase or decrease in the detection value is not limited to the above description.

[0215] For example, when the light detection unit 14 is evaluated based on the resistance value of the light receiving element in the light detection unit 14, the threshold setting unit 262 sets the second reflected light threshold Th2 used to determine the deterioration of the performance of the light detection unit 14 to a value lower than the first reflected light threshold Th1 used to detect the presence or absence of the label L. The intensity of the detected light in the light detection unit 14, represented by the solid line, behaves in an opposite manner to that in Fig. 5. This case is also included in the present invention.

[0216] <Function to notify when the light detection section needs cleaning> In this embodiment, the light detection unit 14 is a photoelectric sensor that includes a light emitting unit and a light receiving unit. Therefore, if the suction unit 10 is dirty, the detection light is reflected by the dust or dirt on the detection opening 15 and hits the light receiving unit, decreasing the resistance value of the photoconductive element of the light receiving unit. This increases the detected voltage value.

[0217] Therefore, the label application device 1 of this embodiment sets a cleaning determination threshold for the intensity (detection value) of the detection light incident on the light receiving portion in the light detection unit 14, and when the detection value rises above the threshold, it can generate a cleaning request error signal that notifies of a request for cleaning of the suction unit 10.

[0218] FIG. 11 is a schematic diagram illustrating the cleaning determination threshold value set in this embodiment and the detection value in the light detection unit 14. As shown in FIG.

[0219] In the label sticking device 1, the threshold setting unit 262 sets a cleaning determination threshold Th3 as a threshold for determining whether or not the suction part 10 needs to be cleaned.

[0220] 11 indicates the intensity (detection value) of the detected light in the light detection unit 14. In addition, in FIG 11, a cleaning determination threshold value Th3 is indicated by a two-dot chain line.

[0221] FIG. 11 shows, as an example, the intensity of the detected light in the light detection section 14 and a predetermined period T4 after the power is turned on, that is, after the power of the label attachment device 1 is turned on.

[0222] 11 shows that the intensity (detection value) of the detection light incident on the light receiving portion of the light detection unit 14 has risen above the cleaning determination threshold value. This means that the detection light is reflected by dust or dirt on the light detection unit 14 and strikes the light receiving portion.

[0223] In this case, the error signal generating unit 263 generates an error signal that notifies a request for cleaning of the suction unit 10. This makes it possible to display on the display unit 160 of the label printing device 100, for example, that it is time to clean the light detection unit 14 based on the error signal for the cleaning request.

[0224] The determination unit 261 determines whether or not the detection value exceeds the cleaning determination threshold when the label application device 1 is powered on and / or when the error state of the label application device 1 is released.

[0225] When the determination unit 261 determines that the cleaning determination threshold has been exceeded, the error signal generation unit 263 generates a cleaning request error signal that notifies a cleaning request.

[0226] In this embodiment, "when the power is turned on" means a period from when the power of the label sticking apparatus 1 is turned on until a predetermined time has elapsed.

[0227] On the other hand, "when the error state is cleared" includes the time when the label end error, which is generated when the end (label end) of the rolled continuous label strip ML is detected, is cleared. In other words, it means the time from when the roll of the continuous label strip ML is replaced until a predetermined time has elapsed.

[0228] In addition, "when the error state is released" includes when the suction error is released. That is, the suction error is an error that occurs when a defective suction of the label L to the suction unit 10 is detected, and the release of the suction error is a state in which the label L is removed from the suction unit 10.

[0229] When the power is turned on and when the error state is released, the label L is not present in a position that blocks the detection opening 15. Therefore, the detection value in the state in which the label L is not present can be reliably obtained.

[0230] In the present embodiment, the cleaning determination threshold value Th3 can be increased or decreased by an operator's operation input. For example, by setting the cleaning determination threshold value Th3 high, it is possible to set the application process to be executed with priority even if there is a small amount of dust or dirt.

[0231] Furthermore, by setting the cleaning determination threshold value Th3 low, the timing to prompt the operator to clean the light detection unit 14 can be notified earlier than the normal cleaning timing.

[0232] In this way, the label application device 1 can notify the operator when it is time to clean the light emitting section (light source) in the light detection section 14.

[0233] When the light detection section 14 is evaluated based on the resistance value of the light receiving element in the light detection section 14, the relationship of the increase or decrease in the detection value will be opposite to that described above.

[0234] <Function to notify of suction errors in the suction unit> (Explanation of adsorption error judgment using two thresholds) As explained in FIG. 2, the label application device 1 is capable of switching the suction force generated in the suction section 10 between a first suction force, a second suction force, and a third suction force by the control of the first control valve 213, the second control valve 214, the negative pressure generating section 215, etc. by the control section 217.

[0235] In this embodiment, the threshold setting unit 262 sets a first adsorption threshold Th4 and a second adsorption threshold Th5, which is greater than the first adsorption threshold, as thresholds for determining whether the label L is properly attached to the adsorption unit 10, which is switchable between three adsorption forces.

[0236] FIG. 12 is a diagram illustrating a change in the suction force generated by the suction part 10 and two threshold values ​​that are set for the suction force generated by the suction part 10. In FIG.

[0237] FIG. 12 shows a first determination period D1 for determining a suction error, that is, when the label L is not normally attached to the suction portion 10, and a second determination period D2 following the first determination period.

[0238] The first determination period D1 is a period for monitoring an adsorption error during printing. In this embodiment, an adsorption error during printing indicates that the label L is not properly held by the adsorption unit 10 after being conveyed while being printed.

[0239] In this embodiment, an error that occurs while the label printer 100 is printing and transporting the label L is not included in the suction error during printing.

[0240] On the other hand, the second determination period D2 is a period for monitoring an adsorption error during application. In this embodiment, an adsorption error during application means that the label L is not properly held by the adsorption unit 10 after the movement of the printed and conveyed label L to the adsorption unit 10 is completed and before the adsorption unit 10 moves to the object to which the label L is to be applied.

[0241] In this embodiment, a waiting period D0 is set from immediately after the printing and transport of the label L in the label printing device 100 is completed, that is, from when the downstream end Ld of the peeled label L is transported so as to sequentially block the opening 13 of the suction section 10 and the label L is handed over to the suction section 10 until the operation of the arm section 221 starts.

[0242] 3, in the label application device 1, the suction section 10 is formed with a plurality of openings 13 arranged along the transport direction of the label L. The label L printed and transported in the label printing device 100 is sequentially sucked by the suction section 10 from the end of the label L.

[0243] The pressure detection unit 216 can detect a change in pressure when the labels L are successively adsorbed to the openings 13 of the adsorption unit 10. Therefore, the pressure detection unit 216 can detect a negative pressure value when all the openings 13 are blocked, and a negative pressure value when all the openings except one are blocked.

[0244] In this manner, in this embodiment, the pressure detection unit 216 can function as a label detection unit that detects a label.

[0245] The determination unit 261 determines whether or not the negative pressure value detected by the pressure detection unit 216 exceeds the first adsorption threshold value Th4 at the time when the first determination period D1 has elapsed.

[0246] When the determination unit 261 determines that the negative pressure value does not exceed the first adsorption threshold value Th4 at the end of the first determination period D1, the error signal generation unit 263 generates an error signal.

[0247] Furthermore, the determination unit 261 determines whether the negative pressure value detected by the pressure detection unit 216 has been lower than the second adsorption threshold value Th5 continuously for a predetermined period of time or more within the second determination period D2.

[0248] The error signal generating unit 263 generates an error signal when the determining unit 261 determines that the adsorption threshold value has been lower than the second adsorption threshold value Th5 continuously for a predetermined period of time or more within the second determination period D2.

[0249] In this embodiment, the waiting period D0 can be set appropriately depending on the conveying speed of the label L in the label printer 100, the operating speed of the arm portion 221, and the like.

[0250] For example, if the adsorption error determination for the label L can be completed after the arm part 221 starts operating and before it reaches the adherend A, the waiting period does not substantially have to be provided.

[0251] Substantially no waiting period means that the arm section 221 is operated after the printing and transport of the label L in the label printing device 100 is completed, that is, after the downstream end Ld of the peeled label L has been transported so as to sequentially block the opening 13 of the suction section 10 and after the upstream end Lu of the label L is still attached to the backing sheet S.

[0252] (Adsorption error judgment process using two thresholds) Next, the adsorption error determination process executed by the determination unit 261 using the above-mentioned first adsorption threshold value Th4 and second adsorption threshold value Th5 will be specifically described.

[0253] FIG. 13 is a flowchart illustrating the adsorption error determination process executed by the control unit 217.

[0254] In step S11, the control unit 217 starts the operation of the arm unit 221 after the printing and transport of the label L in the label printing device 100 has ended and the waiting period D0 has elapsed, and in step S12, the control unit 217 starts counting the first determination period D1.

[0255] When the first determination period D1 has elapsed (step S12: Yes), in step S13, the control unit 217 causes the determination unit 261 to determine whether or not the negative pressure value detected by the pressure detection unit 216 exceeds the first adsorption threshold value Th4.

[0256] If the negative pressure value detected by the pressure detection unit 216 is less than the first adsorption threshold value Th4 (step S13: No), the control unit 217 determines that the label L is not properly attached to the adsorption unit 10, and in step S14, the control unit 217 generates an error signal indicating an adsorption error by the error signal generation unit 263 and stops the operation of the arm unit 221.

[0257] When the negative pressure value detected by the pressure detection unit 216 is equal to or greater than the first adsorption threshold value Th4 (step S13: Yes), in step S15, the control unit 217 starts counting the second determination period D2. The label L is attached to the attachment surface of the adherend A by the arm unit 221 extending toward the adherend A, or is attached to the attachment surface of the adherend A by being blown toward the attachment surface of the adherend A.

[0258] Furthermore, in step S16, the control unit 217 determines whether or not the negative pressure value detected by the pressure detection unit 216 has been lower than the second adsorption threshold value Th5 continuously for a predetermined period of time or more within the second determination period D2.

[0259] If the negative pressure value detected by the pressure detection unit 216 falls below the second adsorption threshold Th5 for a predetermined period of time or more within the second judgment period D2 (step S16: Yes), in step S17, the control unit 217 determines that the label L is not properly attached to the adsorption unit 10, and in step S17, the control unit 217 generates an error signal indicating an adsorption error by the error signal generation unit 263 and stops the operation of the arm unit 221.

[0260] Until the second determination period D2 ends, the process returns to step S15, and steps S16 and S17 are repeated.

[0261] When only one threshold value is set to determine whether the label L is normally held by the suction portion 10, the arm portion 221 is operated after waiting for a time lag until the increase in suction force caused by the label L being suctioned to the suction portion 10 is reflected in the negative pressure value detected by the pressure detection portion 216.

[0262] Therefore, when attempting to accurately detect an adsorption error of the label L to the adsorption portion 10, it is necessary to take the above-mentioned time lag into account and set the judgment time sufficiently long, which causes the throughput to reach a plateau.

[0263] Alternatively, there is a problem in that the arm portion 221 reaches the surface of the adherend A before it is determined that there is an adsorption error of the label L to the adsorption portion 10, and the attachment of the label L is completed in a defective state.

[0264] In contrast, according to the suction error judgment process using two thresholds by the label application device 1 of this embodiment, after the waiting period D0, at the point when the first judgment period D1 has elapsed, the control unit 217 judges, by the judgment unit 261, whether or not the negative pressure value detected by the pressure detection unit 216 exceeds the first suction threshold Th4.

[0265] That is, according to the label application device 1, the start of operation of the arm section 221 is preceded, and the determination based on the first attraction threshold value Th4 is performed during the operation of the arm section 221. Therefore, the speed of the application operation of the label L can be improved.

[0266] In this embodiment, the above-mentioned first adsorption threshold value Th4 and second adsorption threshold value Th5 only need to be capable of determining an adsorption error of the label L after the arm portion 221 starts operating and before it reaches the substrate A, and both can be set arbitrarily by the operator.

[0267] (Ability to set two thresholds) In the labeling device 1 according to this embodiment, the labeling device 1 has a function of setting the above-mentioned first attraction threshold value Th4 and second attraction threshold value Th5.

[0268] FIG. 14 is a flowchart illustrating the process executed by the label application apparatus 1 for setting the first attraction threshold value Th4 and the second attraction threshold value Th5.

[0269] The threshold setting unit 262 sets a first adsorption threshold Th4 based on a negative pressure value corresponding to the adsorption force generated in the adsorption unit 10 in a state in which all openings except one of the multiple openings 13 are closed.

[0270] Furthermore, the threshold setting unit 262 sets a second adsorption threshold Th5 based on a negative pressure value corresponding to the adsorption force generated in the adsorption unit 10 when all of the multiple openings 13 are closed.

[0271] In step S21, the control unit 217 displays on the display unit 160 of the label printer 100 a guidance such as "Please cover all openings except for one of the openings."

[0272] In step S22, the control unit 217 waits for a predetermined period of time while the operator follows the guidance to close all openings except one, and then acquires the negative pressure value generated in the suction unit 10 detected by the pressure detection unit 216.

[0273] In step S23, the control unit 217 sets the first adsorption threshold value Th4 in the threshold value setting unit 262 based on the negative pressure value acquired from the pressure detection unit 216. As one example, a value obtained by subtracting a predetermined value from the acquired negative pressure value, or a value obtained by multiplying by a predetermined ratio, can be set as the first adsorption threshold value Th4.

[0274] Next, in step S24, the control unit 217 displays on the display unit 160 of the label printing device 100 a guidance such as "Please cover all openings."

[0275] In step S25, the control unit waits for a predetermined period of time until the operator follows the guidance to close all the openings, and then acquires the negative pressure value generated in the suction unit 10 detected by the pressure detection unit 216.

[0276] In step S26, control unit 217 sets the negative pressure value acquired from pressure detection unit 216 as second adsorption threshold value Th5 in threshold value setting unit 262. As one example, a value obtained by subtracting a predetermined value from the acquired negative pressure value, or a value obtained by multiplying by a predetermined ratio, can be set as second adsorption threshold value Th5.

[0277] In the above process, the processes from step S24 to step S26 may be executed prior to the processes from step S21 to step S23.

[0278] In the label sticking device 1 according to this embodiment, the first attraction threshold value Th4 is set based on the negative pressure value detected when all of the openings 13 except for one of the openings 13 are closed through the above process. Also, the second attraction threshold value Th5 is set based on the negative pressure value detected when all of the openings 13 are closed.

[0279] Therefore, according to the label application device 1, it is possible to set the first attraction threshold value Th4 and the second attraction threshold value Th5 more accurately than when the operator sets them.

[0280] <Function to notify of decrease in suction force from the initial value in the suction part> The performance of the negative pressure generating unit 215 for generating a negative pressure may deteriorate with use. In this embodiment, the deterioration of the performance of the negative pressure generating unit 215 can be detected as a decrease in the negative pressure value detected by the pressure detecting unit 216.

[0281] The labeling device 1 according to this embodiment sets a predetermined threshold value for the negative pressure value detected by the pressure detection unit 216, and issues a report when the detected negative pressure value falls below the threshold value.

[0282] FIG. 15 is a schematic diagram illustrating the decrease determination threshold value Th6 set in this embodiment and the negative pressure value detected by the pressure detection unit 216. In FIG.

[0283] The solid line shown in Fig. 15 represents the negative pressure value detected by the pressure detection unit 216. Furthermore, in Fig. 15, a decrease determination threshold value Th6 is indicated by a two-dot chain line.

[0284] In this embodiment, it is also possible to set an increase determination threshold value Th7 for notifying when the negative pressure value detected by the pressure detection unit 216 increases. In Fig. 15, the increase determination threshold value Th7 is indicated by a dashed line.

[0285] In the label application device 1, the threshold setting section 262 sets, as an initial value, a negative pressure value corresponding to the suction force generated in the suction section 10 when all of the multiple openings 13 are closed.

[0286] The threshold setting unit 262 sets a decrease determination threshold Th6 for determining a decrease in the negative pressure value corresponding to the suction force generated by the suction unit 10 as a predetermined threshold.

[0287] The degradation determination threshold Th6 is a threshold used to detect the presence or absence of the label L in the suction unit 10. In other words, it is a threshold for determining whether or not the suction unit 10 can hold the label L for a period corresponding to the second determination period D2 for monitoring a suction error during attachment.

[0288] As an example, the threshold setting unit 262 sets a value that is a predetermined amount lower than the initial value as the decrease determination threshold Th6.

[0289] In this embodiment, the error signal generating unit 263 generates an error signal when the determining unit 261 determines that the negative pressure value detected in the second determination period D2 falls below the decrease determination threshold value Th6.

[0290] Similarly, the threshold setting unit 262 sets a value higher than the initial value by a predetermined amount as the increase determination threshold Th7.

[0291] In this embodiment, the error signal generating unit 263 generates an error signal when the determining unit 261 determines that the negative pressure value detected in the second determination period D2 exceeds the increase determination threshold value Th7.

[0292] In this embodiment, the error signal generating unit 263 may generate an error signal indicating a deterioration in the performance of the negative pressure generating unit 215 when the judgment unit 261 judges that the average negative pressure value falls below the deterioration judgment threshold Th6.

[0293] In this embodiment, when the performance of the negative pressure generating unit 215 deteriorates and the upper limit value of the detected negative pressure value falls below the deterioration determination threshold value Th6, an error signal is generated. This makes it possible to notify the operator on the display unit 160 of the time to replace the negative pressure generating unit 215 based on the error signal.

[0294] In addition, in this embodiment, as an example, the error signal generating unit 263 generates an error signal when the average value of the last 10 negative pressure values ​​when the pressure detection unit 216 detects the label L falls below the decrease determination threshold Th6.

[0295] By using the average value, even if there is variation in the negative pressure value when detecting the label L, it is possible to accurately detect the tendency of the detected negative pressure value to fall below the decrease determination threshold value Th6.

[0296] If the label L does not cover all of the opening 13, i.e., if the label L is attached to the suction portion 10 in an abnormal state, this will cause a significant decrease in the average negative pressure value, reducing the accuracy of determining the deterioration of performance.

[0297] For this reason, the negative pressure value when the label L is not detected is stored in the status log storage unit 250 as a status log, but it is preferable not to use it for calculating the average negative pressure value.

[0298] In this way, the label sticking device 1 can detect a decrease in the performance of the negative pressure generating unit 215. This makes it possible to notify the operator that the negative pressure generating unit 215 is malfunctioning or that it is nearing the time to replace it.

[0299] <Remote monitoring of labeling equipment> The label attachment device 1 according to this embodiment is equipped with the network communication unit 241, and is therefore capable of transmitting and receiving data to and from a computer or a management server connected to a network. This allows the label attachment device 1 to be monitored remotely.

[0300] FIG. 16 is a schematic diagram illustrating an example of a management system 300 including the label attachment apparatus 1. As shown in FIG.

[0301] The management system 300 is configured by connecting a plurality of label application apparatuses 1A, 1B, ..., 1X via a network NW to a management server 301 that manages the label application apparatuses 1. A plurality of management servers 301 may be connected to the management system 300.

[0302] The label attachment apparatus 1A can receive update information for the control program of the label attachment apparatus 1A and the like from the management server 301 via the network NW.

[0303] The label sticking apparatus 1A transmits data on the detection value by the light detection unit 14 and the negative pressure value detected by the pressure detection unit 216 to the management server 301 via the communication control unit 266.

[0304] According to the label sticking apparatus 1 of this embodiment, data on the detected values ​​and negative pressure values ​​can be used in the management server 301.

[0305] <Ability to remotely set the thresholds for labeling devices> The threshold setting unit 262 can change the above-mentioned first reflected light threshold Th1, second reflected light threshold Th2, cleaning judgment threshold Th3, first adsorption threshold Th4, second adsorption threshold Th5, and deterioration judgment threshold Th6 based on the setting values ​​received from the management server 301 via the network NW and the network communication unit 241.

[0306] <Threshold recording function> The label application device 1A can transmit the above-mentioned first reflected light threshold Th1, second reflected light threshold Th2, cleaning judgment threshold Th3, first adsorption threshold Th4, second adsorption threshold Th5, and deterioration judgment threshold Th6 to the management server 301 via the network NW.

[0307] Each time the state of the label application device 1 changes, the control unit 217 associates the detected value with at least one threshold value, and stores the result in the status log storage unit 250 as a status log.

[0308] FIG. 17 is a diagram illustrating an example of the status log.

[0309] The status log includes time information, log type, error type (error name), and status. The status log also includes the detection value of the light detection unit 14, the time series transition of the on / off state of the actuator and the external input / output signal, the change over time (time chart) of the detection value detected by the light detection unit 14, and the change over time (time chart) of the negative pressure value detected by the pressure detection unit 216.

[0310] The status log also includes a print log, which includes print image data and print text data.

[0311] The status log also includes a condition log, which includes print information such as the life of the thermal head in the label printer 100, the distance traveled, the number of label application operations in the label application device 1, the number of passes, and the total power-on time.

[0312] The status log also includes, as information related to printing and transport, offset, platen wear, print position, print density, print density adjustment, factory offset, and factory print position setting.

[0313] The status log also includes information regarding the adsorption of the label, such as the adsorption force value during printing, the adsorption force value at the end of printing, the upper limit of the adsorption force, the first reflected light threshold Th1, the second reflected light threshold Th2, the cleaning determination threshold Th3, the first adsorption threshold Th4, the second adsorption threshold Th5, the degradation determination threshold Th6, the waiting period D0 from when the label L is handed over to the adsorption unit 10 until the arm unit 221 starts operating, and the intensity of the detected light at the light detection unit 14.

[0314] The status log also includes the cylinder forward speed, cylinder backward speed, sensor type, backfeed operation, back timing, print speed, and reference point correction vertical position in the label application device.

[0315] When an event occurs in the label application device 1, the log creation unit 264 extracts each log linked to the time information at which the event occurred from the status log storage unit 250, and creates an event log folder with the time information as the folder name.

[0316] FIG. 18 is a schematic diagram illustrating the event log folders created by the log creating unit 264. As shown in FIG.

[0317] FIG. 18 shows an event log folder A having a folder name of 20200422_102247 as time information, an event log folder B having a folder name of 20200422_102230 as time information, and an event log folder C having a folder name of 20200424_102226 as time information.

[0318] As shown in event log folder C, the event log folder includes, by way of example, data related to a TAMP log, a print log, and a status log.

[0319] According to the label application device 1 of this embodiment, an event log folder is created based on information extracted from the status log stored in the status log storage unit 250 when a predetermined event occurs.

[0320] This makes it easier for the operator to grasp the state of the labeling apparatus 1 when a predetermined event occurs in the labeling apparatus 1, and allows suitable feedback for changing the settings of the labeling apparatus 1 and threshold values.

[0321] <Function to compare and display various values ​​at two points in time> The labeling device 1 according to this embodiment can use the above-mentioned status log to record the detection value obtained at any timing by the light detection unit 14. Similarly, the negative pressure value detected by the pressure detection unit 216 can also be recorded.

[0322] In the control unit 217 of the label application device 1, the display data generation unit 265 extracts, from the above-mentioned status log, the detection value and threshold value obtained at an arbitrary first timing and the detection value and threshold value obtained at an arbitrary second timing, and generates data for displaying these in an overlapping manner.

[0323] FIG. 19 is a diagram illustrating data generated by the display data generating unit 265 for comparing and displaying the change behavior of the negative pressure value detected by the pressure detecting unit 216 at two points in time.

[0324] 19, as an example, the arbitrary first timing is the time of shipment from the factory, and the arbitrary second timing is the most recent use. The behavior C1 of the negative pressure value at the time of shipment from the factory is shown by a solid line. The behavior C2 of the negative pressure value at the most recent use is shown by a two-dot chain line.

[0325] According to the labeling device 1 of this embodiment, it becomes easier for an operator to grasp the state of the labeling device at a first timing and the state of the labeling device at a second timing, and this can be effectively used as feedback for changing settings and threshold values.

[0326] [program] The above-mentioned suction process and attachment process in the label attachment apparatus 1 can be realized by a program executable by the control unit 217 of the label attachment apparatus 1. These programs are stored in the ROM, storage unit, etc. of the control unit 217 of the label attachment apparatus 1, and are executed by the processor.

[0327] [Other embodiments] Although the present embodiment has been described above, the above embodiment merely shows one application example of the present invention, and it is not intended that the technical scope of the present invention be limited to the specific configuration of the above embodiment.

[0328] In this embodiment, the continuous label web ML applied to the label printer 100 may be a so-called "outer wound roll" in which the labels L are wound so as to be positioned radially outward relative to the backing paper.

[0329] When an outer winding roll is used, the position of the damper section 114 may be adjusted so that a predetermined tension can be applied while supporting the surface of the continuous label web ML to which the labels L are temporarily attached.

[0330] The continuous label strip ML may be a wound roll label, or may be, for example, a so-called fanfold label in which a continuous label strip divided by perforations into labels of a specified label size is folded at the perforations.

[0331] In this embodiment, the label L may be a so-called RFID label that includes an antenna and an IC chip compatible with RFID (Radio Frequency Identification) technology for transmitting and receiving information by non-contact communication.

[0332] In this embodiment, a plurality of openings 13 are formed in the last row on the downstream side of the conveying direction F of the plurality of openings 13 formed in the adsorption surface 12 of the adsorption unit 10. In contrast, only one opening may be formed in the last row.

[0333] Furthermore, the size, number and arrangement of the openings 13 are not limited to those of the present embodiment as long as they are capable of suction-transporting and suction-holding the labels L.

[0334] In this embodiment, it has been described that the adsorption surface 12 is formed with a detection opening 15 through which the detection light from the light detection unit 14 and the reflected light reflected by the label L pass. However, the position of the detection opening 15 may be such that it is possible to detect that the label L is adsorbed to the adsorption surface 12, and it may be formed at the downstream end side of the conveying direction F, or at the upstream end side.

[0335] The label sticking device 1 may have a detection unit that detects, for example, the material of the label L to be used, the usage environment (temperature, humidity, air pressure), and the like.

[0336] In this embodiment, a mode in which detection of the label L is performed by the light detection unit 14 and a mode in which detection of the label L is performed by the pressure detection unit 216 may be selectable. Furthermore, there may be a label attachment device that does not include the light detection unit 14.

[0337] In this embodiment, since the pressure detection unit 216 can detect the presence or absence of the label L in the suction unit 10, there is no need to change the specifications of the control unit 217 for a label attachment device that does not have a light detection unit 14 mounted thereon.

[0338] In the present embodiment, it has been described that the error signal generating unit 263 generates an error signal indicating a deterioration in performance of the light detecting unit 14 when the determining unit 261 determines that the detection value in the light detecting unit 14 falls below the second reflected light threshold Th2. However, the error signal generating unit 263 may also generate an error signal when the determining unit 261 determines that the detection value in the light detecting unit 14 exceeds the second reflected light threshold Th2.

[0339] In this embodiment, the display unit 160 may be provided in the label sticking device 1. In this case, the display unit 160 can display the negative pressure generated in the suction unit 10 over time as operation input to the label sticking device 1 is performed. The display unit may be provided in each of the label sticking device 1 and the label printing device 100.

[0340] In this embodiment, in step S7, when the control unit 217 receives a signal indicating that the label L has been transported to the second distance, it turns on the second control valve 214, and then, after a predetermined period Δt has elapsed since receiving the signal, it controls the first control valve 213 to turn off.

[0341] In response to this, the control unit 217 may turn off the first control valve 213 that generates the second attractive force, and at the same time, turn on the second control valve 214 that generates the third attractive force.

[0342] In addition, in the present embodiment, it has been described that step S8 is executed following step S7, but the order of steps S8 and S7 may be reversed.

[0343] In this embodiment, the various programs of the label printer 100 may be stored in a non-transitory recording medium such as a CD-ROM. [Explanation of symbols]

[0344] 1,1A,1B,1X Labeling device 10 Adsorption part 11 Adsorption unit body 12 Adsorption surface 13 Aperture 14 Light detection section 15 Detection aperture 20 Main body 21 Suction unit 22 Drive unit 100 Label Printer 110 Printing section 111 Thermal head 112 Platen roller 113 Guide Roll 114 Damper part 120 Supply section 130 Peeling Mechanism 131 Turning Plate 131a End 132 Support member 140 Mounting paper winding section 150 Control Unit 160 Display section 200 Transport device 201 Conveyor 211 Compressor 212 Pressure control section 213 Negative pressure generating section 214 First control valve 215 Second control valve 216 Pressure detection unit 217 Control Unit 221 Arm section 222 Drive unit 231,232,233,234,235 Hose 240 Device Communication Section 241 Network Communication Department 250 Status log storage unit 261 Judgment section 262 Threshold setting unit 263 Error signal generator 264 Log Creation Department 265 Display Data Generation Unit 266 Communication Control Unit 300 Management Systems 301 Management Server A Adherent L Label ML Label Continuum S Mount NW Network

Claims

1. A label application device that adsorbs a conveyed label, moves the label toward an object, and applies the label to the object, comprising: an adsorption unit that adsorbs the label; a negative pressure detection unit that detects a negative pressure value corresponding to an adhesive force generated in the adhesive portion when the labels are successively attached to the adhesive portion, or a light detection unit that detects an amount of reflected light from the labels in the adhesive portion; a determination unit that determines a state of the labeling device based on a detection value of the negative pressure detection unit or the light detection unit and at least one threshold value; a threshold setting unit that changes the at least one threshold based on an operation input by an operator; Equipped with Label application device.

2. 2. The label application device according to claim 1, the thresholds include a first reflected light threshold and a second reflected light threshold, the first reflected light threshold is a value used to detect the presence or absence of the label, the second reflected light threshold is a value greater than the first reflected light threshold, and an error signal generating unit configured to generate an error signal indicating a deterioration in performance of the light detecting unit when the determining unit determines that the detection value is below the second reflected light threshold. Label application device.

3. 3. The label application device according to claim 2, the error signal generating unit generates the error signal when an average value of a predetermined number of the detection values ​​during detection of the label falls below the second reflected light threshold value. Label application device.

4. 2. The label application device according to claim 1, The threshold value is a cleaning determination threshold value for determining whether or not cleaning of the suction unit is required, and an error signal generating unit configured to generate an error signal for notifying a cleaning request when the determination unit determines that the detection value exceeds the cleaning determination threshold when the labeling device is powered on and / or when an error state of the labeling device is released. Label application device.

5. 2. The label application device according to claim 1, the thresholds include a first adsorption threshold and a second adsorption threshold that is greater than the first adsorption threshold, the suction unit has a plurality of openings arranged along a label conveying direction, and sequentially suctions the conveyed labels from an edge of the labels; the negative pressure detection unit detects a negative pressure value corresponding to an adhesive force generated in the adhesive portion when the labels are successively attached to the adhesive portion, When the determination unit determines that the detected negative pressure value does not exceed the first adsorption threshold value after a first determination period has elapsed, or an error signal generating unit that generates an error signal when the determining unit determines that the detected negative pressure value is lower than the second adsorption threshold value continuously for a predetermined time or more within a second determining period that is set after the first determining period, Label application device.

6. 6. The label application device according to claim 5, The threshold setting unit is setting the first suction threshold value based on the negative pressure value corresponding to the suction force generated in the suction portion in a state in which all openings except one of the plurality of openings are closed; setting the second adsorption threshold value based on the negative pressure value corresponding to the adsorption force generated in the adsorption portion in a state in which all of the plurality of openings are closed; Label application device.

7. 2. The label application device according to claim 1, the threshold value is a decrease determination threshold value for determining a decrease from an initial value of a negative pressure value corresponding to an adsorption force generated by the adsorption unit, the suction unit has a plurality of openings arranged along a label conveying direction, and sequentially suctions the conveyed labels from an edge of the labels; an error signal generating unit that generates an error signal when the determining unit determines that an average value of a total of a predetermined number of the negative pressure values ​​corresponding to the suction force generated in the suction unit when all of the plurality of openings are blocked falls below the decrease determining threshold value, Label application device.

8. 2. The label application device according to claim 1, A communication unit for transmitting data to a management server connected to a network; a transmission control unit that transmits the detection value detected by the negative pressure detection unit or the light detection unit to the management server via the communication unit; Equipped with Label application device.

9. 2. The label application device according to claim 1, A communication unit for receiving data from a management server connected to a network, The threshold setting unit changes the threshold based on a setting value received from the management server via the communication unit. Label application device.

10. 2. The label application device according to claim 1, a status log storage unit that stores a status log including the detection value and the at least one threshold value each time a state of the labeling device changes; a log creation unit that creates an event log by extracting, when a predetermined event occurs, the detection value at the time the predetermined event occurs and the at least one threshold value that was set at the time the predetermined event occurs from the status log; Equipped with Label application device.

11. 2. The label application device according to claim 1, a status log storage unit that stores a status log including the detection value and the at least one threshold value each time a state of the labeling device changes; a display data generating unit that extracts, from the status log, the detection value acquired at an arbitrary first timing, the at least one threshold value acquired at the arbitrary first timing, and the detection value acquired at an arbitrary second timing, and the at least one threshold value acquired at the arbitrary second timing, and generates data for displaying these in an overlapping manner; Equipped with Label application device.

12. A method for controlling a label application device comprising an adsorption unit that adsorbs labels, and a negative pressure detection unit that detects a negative pressure value corresponding to an adsorption force generated in the adsorption unit as the labels are successively adsorbed to the adsorption unit, or a light detection unit that detects an amount of light reflected from the labels in the adsorption unit, the label application device adsorbing a label being conveyed, moving the label toward an object to be adhered, and adhering the label to the object, comprising the steps of: determining a state of the labeling device based on a detection value of the negative pressure detection unit or the light detection unit and at least one threshold value; changing the at least one threshold value based on an operation input by an operator; A method for controlling a label application device.

13. a negative pressure detection unit that detects a negative pressure value corresponding to an adhesive force generated in the adhesive unit as the labels are successively attached to the adhesive unit, or a light detection unit that detects an amount of light reflected from the label in the adhesive unit, and the label application device applies a label to the adherend by adhering the label to the adherend, the label application device comprising: an adhesive unit that adsorbs a label; and a negative pressure detection unit that detects a negative pressure value corresponding to an adhesive force generated in the adhesive unit as the labels are successively adsorbed to the adhesive unit; a step of determining a state of the labeling device based on a detection value of the negative pressure detection unit or the light detection unit and at least one threshold value; changing the at least one threshold value based on an operation input by an operator; A program for causing the computer to execute the above.

Images