JP4113410B2 - Abnormality diagnosis system for label insertion device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention receives a cylindrical label and a fitting insertion body such as a bottle into which the label is inserted during one round, and a plurality of label fittings adapted to insert the label into the fitting insertion body. The present invention relates to an abnormality diagnosis system for a rotary type label insertion device provided with an insertion head.
[0002]
[Prior art]
For example, as a label insertion device that inserts a cylindrical label formed of a shrink film into the body of a PET bottle, a label and a PET bottle that are folded into a sheet shape are received during one round, There are those equipped with a rotary type label insertion unit having a plurality of label insertion heads that are inserted into PET bottles while opening the labels, and each label insertion head is a label folded in a sheet shape. A label opener that opens in a cylindrical shape, a mandrel that expands the label opened in a cylindrical shape by the label opener larger than the body of the PET bottle, and a label that is expanded by the mandrel, by pressing down from the mandrel, A label pushing plate for inserting a label into a PET bottle located directly under the mandrel There.
[0003]
By the way, when a defective insertion of the label into the PET bottle occurs during the operation of such a label insertion device, the abnormal part causing the defective insertion of the label is quickly found and the abnormal part is detected. However, it is not always easy for an expert to find an abnormal part by visual inspection while operating the label insertion device. Absent.
[0004]
Therefore, in the past, while operating the label insertion device at an extremely low speed, an operator visually finds an abnormal location, or a video tape is used to capture a location where an abnormality is likely to occur during operation of the label insertion device. Then, a method is adopted in which an abnormal part is found while slow-playing a video tape in which the operating state of the label insertion device is photographed.
[0005]
[Patent Document 1]
JP 2002-249114 A
[0006]
[Problems to be solved by the invention]
However, when the operator visually finds an abnormal location while operating the label insertion device at an ultra-low speed, the label insertion device is operated at an ultra-low speed until the operator finds the abnormal location. Therefore, there is a problem that productivity is significantly reduced.
[0007]
In addition, there may be a case where a label insertion failure occurs only when the label insertion device is operated at a normal speed. In such a case, as described above, the label insertion device is operated at an extremely low speed. In addition, since there is no defective insertion of the label, there is a problem that such a method cannot surely find an abnormal part.
[0008]
On the other hand, when a place where an abnormality is likely to occur in a label insertion device is shot on a video tape, and the video tape is slowly played back to find the abnormal part, the above-mentioned problem does not occur, but it still takes time and effort. However, it was a work that took a long time, and it was not possible to find an abnormal part efficiently.
[0009]
In particular, if there is an abnormal location on the label opener or mandrel mounted on the label insertion head, it is necessary to sequentially check whether there is an abnormal location on each label insertion head. Therefore, in a label insertion device having a large number of label insertion heads, the operation is very laborious.
[0010]
In view of the above-described problems, an object of the present invention is to provide an abnormality diagnosis system for a label insertion device capable of easily and quickly diagnosing the cause of abnormality such as a label insertion failure in this type of label insertion device. Is to provide.
[0011]
[Means for solving the problems and effects thereof]
In order to solve the above problems, the invention according to claim 1 is configured to receive a cylindrical label and a fitted insert into which the label is fitted, and to insert the label into the fitted insert. An abnormality diagnosis system for a rotary type label insertion device provided with a plurality of label insertion heads, wherein the diagnostic position is set at the moving path of the label insertion head at the time of passing through the diagnosis position. Of the label insertion head Label detecting means for detecting presence / absence of a label, and insertion object detection means for detecting presence / absence of an insertion object into which the label detected by the label detection means is inserted; Head identification means for identifying the label insertion head passing through the diagnostic position; A label detection signal output from the label detection means and a fit-insert detection signal output from the fit-insert detection means An abnormality diagnosis means for diagnosing whether an abnormality has occurred in the processing state of the label insertion head that has passed through the diagnostic position, and which label insertion head of the plurality of label insertion heads The present invention provides an abnormality diagnosis system for a label insertion device characterized by comprising an informing means for informing whether an abnormality has occurred in the processing state.
[0012]
As described above, in this abnormality diagnosis system, With the label detection signal output from the label detection means and the inserted insertion body detection signal output from the inserted insertion body detection means, When it is detected that an abnormality has occurred in the processing state of the label insertion head that passes through the diagnostic position, the label insertion head in which the abnormality has occurred is notified. So, as usual, you can find the abnormal part while operating the label insertion device at ultra-low speed, shoot the operating state of the label insertion device on the video tape, and play the video tape slowly, There is no need for troublesome and time-consuming tasks such as finding out.
[0013]
Therefore, if the operation of the label insertion device is stopped and only the label insertion head informing that the abnormality has occurred is inspected, the abnormal part can be immediately found, and the abnormal part can be detected. Since repair or replacement may be performed, the label insertion device can be quickly restored to a normal state while minimizing the operation stop time of the label insertion device.
[0014]
In addition, as in the abnormality diagnosis system of the invention according to claim 2, the abnormality diagnosis unit has a counting unit that totals the number of times of abnormality detection for each label insertion head, and the notification unit For those that report the number of abnormality detections counted for each label insertion head, even if a label insertion head has detected an abnormality, check it according to the number of abnormality detections. It is possible to accurately determine whether an abnormality has to be repaired or replaced at the location causing the abnormality, or whether it is an accident that has occurred accidentally and should not be treated as an abnormality. It is possible to efficiently eliminate only the original abnormality that has to be repaired or replaced.
[0015]
In addition, by examining which label insertion head has a large number of abnormality detections, for example, when there is only a large number of abnormality detections of a specific label insertion head, the cause of the occurrence of abnormality in that label insertion head If there is a high number of times of abnormality detection of a plurality of specific label insertion heads, a predetermined process is selectively performed on these label insertion heads. If there is a high possibility that there is a location causing an abnormality in the part, and the number of abnormal detections of all label insertion heads is large as a whole, a predetermined process is performed on all label insertion heads. By examining the tendency of label insertion heads with a high number of abnormal detections, such as the possibility of occurrence of abnormalities in the parts being executed, It is possible to estimate whether it is sufficient to check which part of the fitted device, efficiently, it is possible to eliminate the cause of the abnormality.
[0016]
In particular, as in the abnormality diagnosis system of the invention according to claim 3, the determination that the abnormality diagnosis means determines a part that causes the abnormality based on the number of abnormality detections counted for each label insertion head. And the notification means reports the part that causes the abnormality determined by the determination unit, and the number of abnormality detections counted for each label insertion head Based on the above, even a maintenance man who cannot estimate which part of the label insertion device should be inspected can efficiently eliminate the cause of the abnormality quickly. can get.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows an abnormality diagnosis system 1 of a label insertion device 2 for inserting a cylindrical label L formed of a shrink film into a body portion of a bottle B as shown in FIG.
[0018]
As shown in FIG. 3, the label insertion device 2 includes a bottle supply unit 20 including a belt conveyor 21, a screw 22, and a star wheel 23, and a long label fed from a substrate roll by a substrate feeding unit 31. The label supply unit 30 that forms the label L while sequentially cutting the forming substrate M, sequentially supplies the label L to the first delivery position α, and the label supplied to the first delivery position α by the label supply unit 30 The label delivery unit 40 that receives L and transports it to the second delivery position β, and receives the bottle B supplied from the bottle supply unit 20 at the bottle supply position γ, transports it to the bottle delivery position δ, and the label delivery unit 40 receives the label L conveyed by 40 at the second delivery position β, and receives the bottle B at the bottle supply position. A rotary type label insertion unit 50 for inserting the label L into the bottle B during conveyance from the bottle to the bottle delivery position δ, and a heating unit (not shown) for thermally shrinking the label L inserted into the bottle B. ) And a bottle conveying unit 60 including a star wheel 61, a screw 62, and a belt conveyor 21 for conveying the bottle B in which the label L is inserted, and the operation of each unit is connected to a drive source. Based on a rotation angle signal output from a position detector (rotary encoder) attached to the main shaft, it is controlled by an electronic rotary cam switch that can obtain a cam output corresponding to the rotation angle of the main shaft.
[0019]
As shown in FIGS. 3 and 4, the label supply unit 30 is a base material supply means (FIG. 3) for continuously feeding a long label-formed base material M fed from the base material feed section 31 at a predetermined speed. (Not shown), a base material cutting means 32 composed of a fixed blade 32a and a rotary blade 32b for sequentially cutting the label forming base material M fed by the base material supply means at a constant speed into a predetermined length, and the base material The label conveying means 33 is configured to sequentially convey the label L formed by being cut by the cutting means 32 to the first delivery position α.
[0020]
The label conveying means 33 is provided with a large number of suctions along the longitudinal direction at the center in the width direction, which is stretched between a guide roller 33a and a driving pulley 33b provided near the base material cutting position and the first delivery position α. Two conveyor belts 34 each having a hole formed at a constant interval, a suction mechanism 35 that sucks and holds the label L on the conveyor belt 34, and the label L are sequentially brought into close contact with the conveyor belt 34 from the lower end to the upper end. And a suction assisting means 36 for assisting the suction holding operation of the label L to the transport belt 34 by the suction mechanism 35.
[0021]
Accordingly, the label L formed by being sequentially cut by the base material cutting means 32 is pressed against the transport belt 34 by the suction auxiliary means 36 sequentially from the lower end portion to the upper end portion thereof, so that the label L is always in a constant posture. It is sucked and held by the conveyor belt 34 and is reliably conveyed to the first delivery position α by the conveyor belt 34.
[0022]
As shown in FIGS. 4 and 5, the label delivery unit 40 includes a plurality of take-up members 41 that rotate at a constant rotational speed so as to pass through the first delivery position α and the second delivery position β. Thus, the label L supplied to the first delivery position α in a folded state in a sheet shape is received by the take-up member 41 by suction and conveyed to the second delivery position β.
[0023]
As shown in FIG. 5, the label insertion unit 50 includes a plurality of support arms 52 radially extending from the rotation shaft 51 and attached to a plurality of concentric circles centered on the rotation shaft 51 at regular intervals. A label insertion head 53 is provided, and each label insertion head 53 causes the cylindrical label L folded into a sheet received at the second label delivery position β to expand larger than the outer diameter of the bottle B. The expanded label L is inserted into the body of the bottle B while the bottle B received at the bottle supply position γ is being conveyed to the bottle delivery position δ.
[0024]
The label insertion head 53 is a sheet that has been transported to the second delivery position β by the bottle placement table 54 on which the bottle B supplied from the bottle supply unit 20 is placed at the bottle supply position γ, and the label delivery unit 40. The label opener 55 that receives the label L folded in a cylindrical shape and opens in a cylindrical shape, and the four open / close ridges that expand the label L opened in a cylindrical shape by the label opener 55 larger than the outer diameter of the bottle B And a label push-in plate 57 that is inserted into the bottle B placed on the bottle placing table 54 by pushing down the label L expanded by the mandrel 56, as shown in FIG. As shown in FIG. 5B, the label L in the folded state received at the second delivery position β is labeled as shown in FIG. After being opened in a cylindrical shape by the opener 55, a closed mandrel 56 is inserted into the opened label L as shown in FIG. 5C, and then, as shown in FIG. When the mandrel 56 is opened, the label L is expanded larger than the outer diameter of the bottle B, and then the bottle B received at the bottle supply position γ is transferred to the bottle mounting table as shown in FIGS. The label L expanded by the mandrel 56 is inserted into the body of the bottle B by the label pushing plate 57 in the middle of being conveyed to the bottle delivery position δ while being held by 54.
[0025]
As shown in FIG. 1, the abnormality diagnosis system 1 of the label insertion device 2 passes through the diagnosis position ω at the diagnosis position ω set in the movement path of the label insertion head 53 of the label insertion device 2. State detection means 11 for detecting the processing state of the label insertion head 53 at the time, head identification means 12 for identifying the label insertion head 53 passing through the diagnostic position ω, and label insertion detected by the state detection means 11 Based on the processing state of the head 53, an abnormality diagnosing means 13 for diagnosing whether or not an abnormality has occurred in the processing state of the label insertion head 53 when passing the diagnostic position ω, and diagnosis by the abnormality diagnosing means 13 And display means 14 for outputting the result.
[0026]
As shown in FIG. 6C, the state detection means 11 is opened in a cylindrical shape by a label opener 55, and a bottle L placed on a label L in which a closed mandrel 56 is inserted and a bottle placement table 54. The label detection sensor 11a and the bottle detection sensor 11b, each comprising a phototube or the like, which respectively detect B, are configured so that the label detection signal and the bottle detection signal output from the label detection sensor 11a and the bottle detection sensor 11b are abnormal diagnosis means 13. To be input.
[0027]
The head identification means 12 is constituted by a rotary encoder that outputs the rotational displacement of the rotary shaft 51 of the label insertion head 53 as a rotation angle signal. The rotation angle signal output from the rotary encoder is sent to the abnormality diagnosis means 13. It is designed to be entered.
[0028]
When the rotation shaft 51 of the label insertion head 53 makes one rotation, the rotation shaft of the rotary encoder is set to make one rotation. For example, when the number of label insertion heads 53 is 30, the first head is 0 °. More than 12 °, less than 12 °, less than 12 ° and less than 24 ° ... 29th head is more than 336 ° and less than 348 °, 30th head is more than 348 ° and less than 360 °. Angles are pre-assigned.
[0029]
When the first label insertion head 53 passes through the machine origin, the rotation angle signal output from the rotary encoder is initially set to 1 °, and the diagnosis position is based on the machine origin. Since the relative angle of ω is preset as the number of heads between the machine origin and the diagnostic position ω, the rotation angle signal output from the rotary encoder when the label insertion head 53 passes the diagnostic position ω Based on this, it is possible to identify which label insertion head 53 has passed the diagnostic position ω.
[0030]
The abnormality diagnosing means 13 is constituted by a sequence controller, and for each head number, a storage unit 13a that stores the number of times an abnormality is detected in the processing state of the label insertion head 53 (number of abnormality detection); Based on the label detection signal and the bottle detection signal output from the label detection sensor 11a and the bottle detection sensor 11b, it is determined whether or not an abnormality has occurred in the processing state of the label insertion head 53 that has passed the diagnostic position ω. (Specifically, the case where the label L cannot be detected even though the bottle B is detected is determined to be abnormal), and the processing state of the label insertion head 53 is abnormal Is the rotary encoder which is the head identifying means 12 when the abnormality is detected, that is, when the label insertion head 53 passes the diagnostic position ω. Based on the rotation angle signal output from the encoder, the control unit 13b that identifies the head number of the label insertion head 53 in which the processing state is abnormal, and the control unit 13b cause the processing state to be abnormal. When the head number of the generated label insertion head 53 is specified, it is stored in the storage unit 13a by adding 1 to the number of times of abnormality detection corresponding to the head number stored in the storage unit 13a. And a control unit 13b that updates the number of times of abnormality detection, each time the number of times of abnormality detection of the label insertion head 53 stored in the storage unit 13a is updated for each head number. The number of times of abnormality detection corresponding to each head number is output to the display means 14.
[0031]
The display means 14 is constituted by a CRT. As shown in FIG. 2A, the display means 14 displays the number of times of abnormality detection of the label insertion head 53 for each head number. "Diagnostic display screen" is output. When the “reset button” on this “abnormality diagnosis display screen” is pressed, the number of times of abnormality detection of the label insertion head 53 stored for each head number in the storage unit 13a is reset to “0”. It has become.
[0032]
Further, as shown in FIG. 4B, the display means 14 is configured to output a “diagnosis position setting screen” for setting the diagnosis position ω with reference to the machine origin. In this “diagnosis position setting screen”, as shown in the figure, the head numbers of the label insertion heads 53 passing through the machine origin are sequentially displayed in reverse, and the rotation angle signal output from the rotary encoder at that time is displayed. The display area is divided into a digitally displayed monitor area X and a setting area Y for setting the change of the diagnostic position ω. For example, the diagnostic position ω, that is, the detection position of the label L by the label detection sensor 11a and the bottle detection sensor 11b. When the detection position of the bottle B is changed, the diagnosis position ω after the change is determined by simply setting with the buttons (1 to 16) in the setting area Y what number head corresponds to the machine origin. The change of the position ω can be easily recognized.
[0033]
As described above, in this abnormality diagnosis system 1, when it is detected that an abnormality has occurred in the processing state of the label insertion head 53 that passes through the diagnostic position ω, the head number of the label insertion head 53 is changed. Since the number of times of abnormality detection of each label insertion head 53 is specified and displayed for each head number, the operation of the label insertion device 2 is stopped, and the label insertion head having a large number of abnormality detections. If only 53 and its related parts are inspected, an abnormal part can be found immediately.
[0034]
Therefore, as in the past, while operating the label insertion device at an extremely low speed, the abnormal location is found, or the operating state of the label insertion device is photographed on a video tape, and the video tape is slowly played back while the abnormal location is detected. The troublesome and time-consuming work of finding out is unnecessary, and the label insertion device 2 can be quickly restored to a normal state while minimizing the operation stop time of the label insertion device 2.
[0035]
In particular, in this abnormality diagnosis system 1, since the number of times of abnormality detection of each label insertion head 53 is displayed for each head number, even in the label insertion head 53 in which an abnormality is detected. Depending on the number of times the abnormality has been detected, it is necessary to check whether it is an original abnormality that must be inspected and repaired or replaced at the location causing the abnormality, or whether it is an accident that has occurred accidentally and is not handled as an abnormality. It is possible to make a judgment, and it is possible to efficiently eliminate only the original abnormality that requires repair or replacement of the location that causes the abnormality.
[0036]
Further, since the number of abnormality detections is small, it cannot be determined that the abnormality is an original abnormality at the present time. However, the label insertion head 53 in which the number of abnormality detections is gradually increasing will be fatal in the near future. Therefore, when the operation of the label insertion device 2 is normally stopped, it is also checked and overhauled to prevent the occurrence of a fatal abnormality. The effect that it can do is also acquired.
[0037]
Further, by examining which label insertion head 53 has a large number of abnormality detections, that is, when only a specific label insertion head 53 has a large number of abnormality detections, an abnormality occurs in the label insertion head 53. The number of take-up members 41 of the label delivery unit 40 is 10, for example, when the number of abnormal detections of the plurality of specific label insertion heads 53 is large. When the number of label insertion heads 53 is 20, and only the number of abnormality detections of the No. 5 head and No. 15 head is high, a predetermined process is selectively executed for those label insertion heads. In a specific take-up member 41 or the like that delivers the label L to the No. 5 head or No. 15 head in the label delivery unit 40, for example, When there is a high possibility that a location exists and the number of abnormality detections of all the label insertion heads 53 is large as a whole, a portion that performs a predetermined process on all the label insertion heads 53, For example, there is a high possibility that a portion that causes an abnormality is present in the base material cutting means 32 or the like in the label supply unit 30, and the tendency of the label insertion head 53 having a large number of abnormality detections. By examining whether there is any part, it is possible to estimate which part of the label insertion device 2 should be inspected, so that the cause of the abnormality can be efficiently eliminated.
[0038]
In the above-described embodiment, the number of abnormality detections of each label insertion head 53 is tabulated and displayed for each head number. However, the present invention is not limited to this, and there is an abnormality in the processing state. When the generated label insertion head 53 is detected, the head number of the label insertion head 53 in which an abnormality has occurred may be displayed each time.
[0039]
In the embodiment described above, when the label L cannot be detected by the label detection sensor 11a even though the bottle B is detected by the bottle detection sensor 11b at the diagnostic position ω, the label insertion head 53, it is determined that an abnormality has occurred in the processing state. However, the present invention is not limited to this. For example, during the operation of the label insertion device 2, the label insertion that passes the diagnostic position ω is performed. An image pattern obtained by sequentially photographing the processing state of the insertion head 53 using a CCD camera or the like, and a reference image pattern created by photographing a normal processing state in the label insertion head 53 in advance. If both are different, it is also possible to determine that an abnormality has occurred in the processing state of the label insertion head 53, Employing such an abnormality detection method makes it possible to detect even more abnormalities.
[0040]
Further, in the embodiment described above, all the abnormalities occurring in one label insertion head 53 are totaled, but a plurality of abnormal items can be detected individually by adding detection sensors or the like. In this case, it is possible to individually count the number of abnormality detections for each abnormality item. By adopting such a counting method, it is possible to perform further detailed abnormality diagnosis.
[0041]
In the above-described embodiment, the number of abnormality detections of each label insertion head 53 is only counted and displayed for each head number. However, as described above, the label insertion head 53 having a large number of abnormality detections is displayed. Since it is possible to estimate which part of the label insertion device 2 should be inspected by examining the tendency, each label collected for each head number in the abnormality diagnosis means 13 Based on the number of abnormality detections of the insertion head 53, a determination unit that determines a site that causes an abnormality is provided, and the region that causes the abnormality determined by the determination unit is displayed on the display unit 14. Therefore, it is impossible to determine which part of the label insertion device should be inspected on the basis of the number of abnormality detections counted for each label insertion head. Even Tenansuman efficiently, effect that the cause of the abnormality can be rapidly eliminated.
[0042]
In the above-described embodiment, the control unit 13b processes the label insertion head 53 that has passed the diagnostic position ω based on the label detection signal and the bottle detection signal output from the label detection sensor 11a and the bottle detection sensor 11b. Whether or not an abnormality has occurred in the state is determined. An abnormality determination unit that performs such abnormality determination is provided on the sensor side, and an abnormality determination signal is output from the abnormality determination unit to the control unit 13b. May be. However, in that case, an abnormality diagnosis means is configured by the storage unit 13a, the control unit 13b, the totaling unit 13c, and the abnormality determination unit described above.
[0043]
In the above-described embodiment, the diagnosis result is notified by displaying the number of abnormality detections on the display unit 14, but the present invention is not limited to this. It is also possible to notify by outputting a diagnosis result to a medium or the like. In addition, if the diagnosis result is transmitted using a communication line or the like and displayed at a remote location (for example, a maintenance company) and notified, remote engineers can resolve the abnormality. It is also possible.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of an abnormality diagnosis system according to the present invention.
2A is a diagram showing an abnormality diagnosis display screen displayed on the display means in the abnormality diagnosis system same as above, and FIG. 2B is a diagram showing a diagnosis position setting screen displayed on the display means same as the above.
FIG. 3 is a schematic configuration diagram illustrating a label insertion device that performs an abnormality diagnosis by the abnormality diagnosis system according to the embodiment.
FIG. 4 is a schematic view showing a label supply unit in the above-described label insertion device.
FIG. 5 is a schematic view showing a label delivery unit and a label insertion unit in the label insertion device of the above.
FIGS. 6A to 6G are operation explanatory views showing the operation of the label insertion head in the label insertion device of the above.
[Explanation of symbols]
1 Abnormality diagnosis system
2 Label insertion device
11 State detection means
11a Label detection sensor
11b Bottle detection sensor
12 Head identification means
13 Abnormality diagnosis means
13a storage unit
13b Control unit
13c Aggregation Department
14 Display means
20 Bottle supply unit
30 Label supply unit
40 Label delivery unit
50 Label insertion unit
53 Label insertion head
54 Bottle mounting table
55 Label Opener
56 Mandrel
57 Label pushing plate
ω Diagnosis position

Claims (3)

A rotary type label fitting provided with a plurality of label insertion heads for receiving a cylindrical label and an insertion body into which the label is inserted, and inserting the label into the insertion body. An abnormality diagnosis system for an insertion device,
Label detection means for detecting the presence or absence of the label of the label insertion head at the time of passing through the diagnosis position at the diagnosis position set in the movement path of the label insertion head ;
A to-be-inserted body detecting means for detecting the presence or absence of a to-be-inserted body into which the label detected by the label detecting means is inserted; and
Head identification means for identifying the label insertion head passing through the diagnostic position;
An abnormality occurs in the processing state of the label insertion head that has passed the diagnostic position, based on the label detection signal output from the label detection means and the insertion object detection signal output from the insertion object detection means. Abnormality diagnosis means for diagnosing whether or not
An abnormality diagnosis system for a label insertion device, comprising: a notifying unit that notifies which of the plurality of label insertion heads a processing state of a label insertion head is abnormal. The abnormality diagnosing unit has a totaling unit that counts the number of times each abnormality is detected for each label insertion head,
2. The abnormality diagnosis system for a label insertion device according to claim 1, wherein the notification unit notifies the number of abnormality detections counted for each label insertion head. The abnormality diagnosis means includes a determination unit that determines a part that causes an abnormality based on the number of abnormality detections counted for each label insertion head.
The abnormality diagnosis system for a label insertion device according to claim 2, wherein the notification unit is configured to notify a site that causes the abnormality determined by the determination unit.

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