Blocking detection device and blocking detection method

Abstract

To provide a blocking detection device and a blocking detection method capable of suppressing variation in a detection result.SOLUTION: A blocking detection device EA includes: detection means 10 that detects a physical phenomenon that occurs when a long body FL superimposed on a support RB1 peels off from the support RB1; and detection means 20 that detects blocking caused by the long body FL being in close contact with the support RB1 based on a detection result of the detection means 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a blocking detection device and a blocking detection method. [Background technology]

[0002] A method for detecting blocking, which occurs when a long body comes into close contact with a support that supports the long body, is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-091544 Summary of the Invention [Problem to be solved by the invention]

[0004] In the evaluation of blocking properties described in Patent Document 1, blocking is detected by a person visually inspecting the surface condition of the hard-coated film (long body) or listening to the sound of the long body peeling off, which results in variation in the detection results.

[0005] An object of the present invention is to provide a blocking detection device and a blocking detection method that can suppress variations in detection results. [Means for solving the problem]

[0006] A blocking detection device according to one aspect of the present invention includes a detection means for detecting a physical phenomenon that occurs when a long body placed on a support body peels off from the support body, and a detection means for detecting blocking caused by the long body being in close contact with the support body based on the detection result of the detection means.

[0007] In a blocking detection device according to one aspect of the present invention, the support may be a wound object around which the elongated body is wound, the detection means may detect the behavior of the wound object, and the detection means may detect the blocking based on the behavior of the wound object.

[0008] In the blocking detection device according to one aspect of the present invention, the detection means may detect the acceleration of the wound object, and the detection means may detect the blocking based on the acceleration of the wound object.

[0009] In a blocking detection device according to one aspect of the present invention, the support is a release sheet to which the elongated body is temporarily attached, the detection means detects the behavior of a release member that releases the elongated body from the release sheet, and the detection means may detect the blocking based on the behavior of the release member.

[0010] In the blocking detection device according to one aspect of the present invention, the detection unit may detect an acceleration of the peeling member, and the detection unit may detect the blocking based on the acceleration of the peeling member.

[0011] In a blocking detection device according to one aspect of the present invention, the detection means may detect the torque or rotation speed of a rotary motor that unwinds the elongated body, and the detection means may detect the blocking based on the torque or rotation speed of the rotary motor.

[0012] In a blocking detection device according to one aspect of the present invention, the detection means may detect the amplitude of the elongated body that has peeled off from the support, and the detection means may detect the blocking based on the amplitude of the elongated body.

[0013] In a blocking detection device according to one aspect of the present invention, the detection means may detect the amount of charge on the elongated body that has peeled off from the support, and the detection means may detect the blocking based on the amount of charge on the elongated body.

[0014] A blocking detection method according to one aspect of the present invention includes a detection step of detecting a physical phenomenon that occurs when a long body placed on a support body peels off from the support body, and a detection step of detecting blocking caused by the long body being in close contact with the support body based on the detection results of the detection step. [Effects of the Invention]

[0015] According to the present invention, since blocking is detected based on the detection result of the detection means, it is possible to suppress variations in the detection result. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is an explanatory diagram of a dispensing device equipped with a blocking detection device according to a first embodiment of the present invention. [Figure 2] 2 is a view of the feeding device of FIG. 1 taken along the arrow AR. [Figure 3] FIG. 1 is an explanatory diagram of a blocking detection process. [Figure 4] FIG. 1 is an explanatory diagram of a blocking detection process. [Figure 5] FIG. 1 is an explanatory diagram of a blocking detection process. [Figure 6] FIG. 1 is an explanatory diagram of a blocking detection process. [Figure 7] FIG. 10 is an explanatory diagram of a dispensing device equipped with a blocking detection device according to a second embodiment of the present invention. [Figure 8] 8 is a view of the feeding device of FIG. 7 taken along the arrow AR. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the X-axis, Y-axis, and Z-axis are orthogonal to each other, and the X-axis and Y-axis are axes within a predetermined plane, and the Z-axis is an axis orthogonal to the predetermined plane. Furthermore, in this embodiment, when viewed from the front direction of Fig. 1 parallel to the Y-axis, "up" is the direction of the arrow on the Z-axis, "down" is the opposite direction, "left" is the direction of the arrow on the X-axis, "right" is the opposite direction, "front" is the direction toward the front in Fig. 1 parallel to the Y-axis, and "rear" is the opposite direction. Furthermore, in the second and subsequent embodiments, components having the same configuration and functions as those of the embodiments already described will be given the same numbers as those in those embodiments or will not be shown in the illustrations, and their descriptions will be simplified or omitted.

[0018] [First embodiment] In Figures 1 and 2, the blocking detection device EA comprises a detection means 10 that detects the physical phenomenon that occurs when a film FL, which is a long body superimposed on a rolled material RB1 as a support, peels off from the rolled material RB1, and a detection means 20 that detects blocking, in which the film FL is in close contact with the rolled material RB1, based on the detection results of the detection means 10, and a payout means 30 that pulls the film FL away from the rolled material RB1 and pays it out, forming a payout device EA1.

[0019] The wound material RB1 of this embodiment is configured by winding a film FL around a tubular core RC. Blocking refers to a state in which a long body adheres to a support that supports the long body, and the long body must be peeled from the support with a force that exceeds the designed or experimental peel force. In other words, blocking is unintended adhesion between the support and the long body, and is also a phenomenon in which damage occurs on the peeled surface as a result.

[0020] The detection means 10 detects the behavior of the wound material RB1 as a physical phenomenon that occurs when the film FL peels off from the wound material RB1. In this embodiment, the detection means 10 is configured with an acceleration sensor capable of wireless communication, and detects acceleration as a behavior of the wound material RB1. The detection means 10 is also installed on the core RC of the wound material RB1.

[0021] The detection means 20 is configured with a personal computer, a server, or the like. The detection means 20 is equipped with a storage means such as a memory or a hard disk, and stores a calibration curve of the amplitude versus vibration frequency of the wound material RB1 when no blocking occurs during the unwinding of the film FL. In this embodiment, the detection means 20 detects blocking based on the acceleration of the wound material RB1.

[0022] The unwinding means 30 includes a rotary motor 31 as a driving device, a support roller 32 supported by the output shaft 31A of the rotary motor 31 and supporting the wound material RB1, and a guide roller 33 that guides the film FL unwound from the wound material RB1.

[0023] The operation of the payout device EA1 equipped with the above-described blocking detection device EA will now be described. First, a user of the unwinding device EA1 (hereinafter simply referred to as "user") sets the wound material RB1 in the unwinding device EA1 as shown in Figures 1 and 2, and then inputs a signal to start automatic operation via an operation means (not shown) such as an operation panel or a personal computer. Then, the unwinding means 30 drives the rotary motor 31, which peels and unwinds the film FL from the wound material RB1. While the film FL is being unwound, the detection means 10 detects the acceleration of the wound material RB1 in each of the X-, Y-, and Z-axis directions, as shown in Figure 3.

[0024] The size and weight of the roll RB1 change over time as the film FL is unwound. Therefore, the acceleration of the roll RB1 changes depending on the length of the film FL remaining wound around the roll RB1, that is, depending on the time elapsed since the unwinding of the film FL began, as shown in Figure 3. Note that the detection areas A1 to A6 in Figure 3 correspond to the length of the remaining wound film FL. That is, the detection area A1 indicates the value when the remaining wound film FL is the longest, and the values ​​when the remaining film FL becomes shorter are indicated from detection area A1 to detection area A6. For example, if the initial winding length of the film FL of the roll RB1 is 500 m, the length of the film FL remaining wound can be more than 400 m in the detection area A1, more than 300 m to 400 m in the detection area A2, more than 200 m to 300 m in the detection area A3, more than 100 m to 200 m in the detection area A4, more than 50 m to 100 m in the detection area A5, and 50 m or less in the detection area A6.

[0025] Next, the detection means 20 combines the accelerations in each axial direction to obtain a three-axis combined acceleration as shown in Fig. 4, and then integrates the three-axis combined acceleration to obtain a three-axis combined velocity. The detection means 20 then performs FFT (Fast Fourier Transform) analysis on the three-axis combined velocity as shown in Fig. 5, and extracts the vibration component of the wound material RB1 during one rotation of the support roller 32 for each of the detection areas A1 to A6 from the analysis results shown in Fig. 5, as enclosed by the two-dot chain line in the same figure, i.e., the vibration frequency and amplitude when the amplitude is maximum in each of the detection areas A1 to A6. The detection areas A1 to A6 in Figs. 4 and 5 are the same as the detection areas A1 to A6 in Fig. 3.

[0026] Next, the detection means 20 subtracts the amplitude of the calibration curve stored in advance in the storage means from the amplitude of the extracted vibration component to obtain an evaluation amplitude, and detects blocking when the evaluation amplitude is outside the larger range, such as the range of evaluation amplitudes enclosed by the two-dot chain line in Fig. 6. Note that Fig. 6 shows the frequency of the extracted vibration component converted into a period.

[0027] According to the embodiment described above, blocking is detected based on the detection result of the detection means 10, so that variations in the detection results can be reduced.

[0028] [Second embodiment] 7 and 8, the present embodiment differs from the first embodiment in the configuration of the unwinding means 30 and the installation position of the detection means 10. The wound material RB2 of the present embodiment is configured by winding an original roll RS, in which an adhesive sheet AS as a long body is temporarily attached to a release sheet RL as a support, around a tubular core RC.

[0029] In this embodiment, the payout means 30 includes a rotary motor 31, a support roller 32 that supports the roll RB2, and a peeling roller 34 as a peeling member that folds back the release sheet RL of the raw roll RS paid out from the roll RB2 and peels the adhesive sheet AS from the release sheet RL. Detecting means 10 is provided on the peeling roller 34. Detecting means 10 detects the acceleration of the peeling roller 34 as the behavior of the peeling roller 34, and detecting means 20 detects blocking based on the acceleration of the peeling roller 34.

[0030] In this embodiment, when the payout means 30 drives the rotary motor 31, the release sheet RL of the raw roll RS is folded back by the peeling roller 34, and the adhesive sheet AS is peeled off from the release sheet RL and paid out. While the adhesive sheet AS is being paid out, the detection means 10 detects the acceleration of the peeling roller 34 in each of the X-axis, Y-axis, and Z-axis directions. Thereafter, the detection means 20 performs the same process as in the first embodiment to detect whether blocking has occurred.

[0031] As described above, the best configurations, methods, and the like for implementing the present invention have been disclosed in the above description, but the present invention is not limited thereto. That is, although the present invention has been particularly illustrated and described mainly with reference to specific embodiments, those skilled in the art can make various modifications to the above-described embodiments in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and purpose of the present invention. Furthermore, the above-disclosed descriptions limiting the shape, material, and the like are provided as examples to facilitate understanding of the present invention and are not intended to limit the present invention. Therefore, descriptions using names of components that are free from some or all of the limitations on shape, material, and the like are included in the present invention. Furthermore, the means and steps of the present invention are not limited in any way as long as they can perform the operations, functions, or steps described for those means and steps, and are in no way limited to the components and steps of a single embodiment shown in the above embodiment. For example, the feeding means may be any means that separates and feeds the elongated body from the support, and is not limited in any way as long as it is within the scope of the common general technical knowledge at the time of filing (the same applies to other means and steps).

[0032] The detection means 10 may detect the speed of the wound material RB1 and the peeling roller 34 without detecting the acceleration as the behavior of the wound material RB1 and the peeling roller 34, or may directly detect the vibration frequency and amplitude of the wound material RB1 and the peeling roller 34. The detection means 10 may detect, for example, the angular acceleration of the wound material RB1 as the behavior of the wound material RB1, or may detect the angular acceleration of the peeling roller as the behavior of the peeling roller .

[0033] The detection means 10 may detect the torque or rotation speed of the rotary motor 31 that pays out the film FL and adhesive sheet AS. That is, when blocking occurs, the peeling force when peeling the film FL from the roll RB1 or the peeling force when peeling the adhesive sheet AS from the release sheet RL increases, causing fluctuations in the torque and rotation speed of the rotary motor 31. Therefore, the detection means 10 may detect the torque and rotation speed of the rotary motor 31.

[0034] The detection means 10 may detect the amplitude of the film FL peeled from the roll RB1 or the amplitude of the adhesive sheet AS peeled from the release sheet RL, or may detect the acceleration of the film FL peeled from the roll RB1 or the acceleration of the adhesive sheet AS peeled from the release sheet RL. In other words, when blocking occurs, the amplitude and acceleration of the film FL peeled from the roll RB1 and the amplitude and acceleration of the adhesive sheet AS peeled from the release sheet RL increase, so the detection means 10 may detect the amplitude and acceleration of the film FL and the amplitude and acceleration of the adhesive sheet AS.

[0035] The detection means 10 may detect the amount of charge on the film FL peeled from the roll RB1 and the amount of charge on the adhesive sheet AS peeled from the release sheet RL. That is, when blocking occurs, the amount of charge on the film FL peeled from the roll RB1 and the amount of charge on the adhesive sheet AS peeled from the release sheet RL increases, so the detection means 10 may detect the amount of charge on the film FL and the adhesive sheet AS.

[0036] The detection means 10 may be installed on the support roller 32 or on the guide roller 33 .

[0037] The detection means 20 may detect blocking based on the acceleration of the wound material RB1 or the acceleration of the peeling roller 34 detected by the detection means 10, or the speed of the wound material RB1 or the speed of the peeling roller 34 detected by the detection means 10. For example, the detection means 20 may perform FFT analysis on the acceleration of the wound material RB1 or the peeling roller 34, or the speed of the wound material RB1 or the peeling roller 34, and detect blocking when the evaluation amplitude obtained by subtracting the amplitude of the calibration curve stored in the storage means from the amplitude of the extracted vibration component deviates from the larger side, as in the embodiment, or when the acceleration of the wound material RB1 or the peeling roller 34, or the speed of the wound material RB1 or the peeling roller 34 exceeds a preset threshold.

[0038] The detection means 20 may detect blocking based on the vibration frequency and amplitude of the wound material RB1 or the peeling roller 34 detected by the detection means 10. For example, similar to the embodiment, the detection means 20 may detect blocking when the evaluation amplitude obtained by subtracting the amplitude of the calibration curve stored in the storage means from the detected amplitude deviates from the larger side, or may detect blocking when the amplitude of the wound material RB1 or the peeling roller 34 exceeds a preset threshold value.

[0039] The detection means 20 may detect blocking based on the angular acceleration of the wound material RB1 or the angular acceleration of the peeling roller 34 detected by the detection means 10. For example, similar to the embodiment, the detection means 20 may perform FFT analysis on the angular acceleration of the wound material RB1 or the peeling roller 34, and detect blocking when an evaluation amplitude obtained by subtracting the amplitude of the calibration curve stored in the storage means from the amplitude of the extracted vibration component deviates from the larger side, or may detect blocking when the angular acceleration of the wound material RB1 or the peeling roller 34, or the angular velocity of the wound material RB1 or the peeling roller 34, exceeds a preset threshold value.

[0040] The detection means 20 may detect blocking based on the torque and rotation speed of the rotary motor 31. For example, the detection means 20 may perform FFT analysis of the torque and rotation speed of the rotary motor 31, and, as in the embodiment, may detect blocking when the evaluation amplitude obtained by subtracting the amplitude of the calibration curve stored in the storage means from the amplitude of the extracted vibration component deviates from the larger side, or may detect blocking when the torque or rotation speed of the rotary motor 31 exceeds a preset threshold value.

[0041] The detection means 20 may detect blocking based on the amplitude of the film FL peeled from the roll RB1 or the amplitude of the adhesive sheet AS peeled from the release sheet RL, or may detect blocking based on the acceleration of the film FL peeled from the roll RB1 or the acceleration of the adhesive sheet AS peeled from the release sheet RL. For example, the detection means 20 may detect blocking when the amplitude of the film FL or the adhesive sheet AS exceeds a predetermined amplitude threshold, or may detect blocking when the acceleration of the film FL or the adhesive sheet AS exceeds a predetermined amplitude threshold. Furthermore, the detection means 20 may perform FFT analysis on the acceleration of the film FL or the adhesive sheet AS, and, as in the embodiment, detect blocking when the evaluation amplitude, calculated by subtracting the amplitude of the calibration curve stored in the storage means from the amplitude of the extracted vibration component, deviates from the larger side.

[0042] The detection means 20 may detect blocking based on the amount of charge on the film FL peeled from the roll RB1 or the amount of charge on the adhesive sheet AS peeled from the release sheet RL. For example, the detection means 20 may detect blocking when the amount of charge on the film FL or the adhesive sheet AS exceeds a preset threshold.

[0043] The detection means 20 may detect blocking using a learning model that has been trained by machine learning. That is, the detection means 20 may detect blocking using a learning model that has been trained by machine learning using as input values ​​the acceleration of the wound material RB1 and the peeling roller 34, the speed of the wound material RB1 and the peeling roller 34, the vibration frequency and amplitude of the wound material RB1 and the peeling roller 34, the torque and number of rotations of the rotary motor 31, the amplitude and acceleration of the film FL peeled from the wound material RB1, the amplitude and acceleration of the adhesive sheet AS peeled from the release sheet RL, the charge amount of the film FL peeled from the wound material RB1, or the charge amount of the adhesive sheet AS peeled from the release sheet RL, and using the input values ​​when blocking occurs and the input values ​​when blocking does not occur as training data.

[0044] The materials, types, shapes, etc. of the rolled materials RB1 and RB2, the elongated body, and the release sheet RL are not particularly limited. For example, the elongated body may be an adhesive sheet, and the adhesive sheet AS may have an adhesive form such as pressure-sensitive adhesive or heat-sensitive adhesive. Furthermore, the adhesive sheet AS and the adhesive sheet may be any type, such as a single-layer sheet consisting of only an adhesive or pressure-sensitive adhesive layer, a two-layer sheet consisting of a substrate and an adhesive or pressure-sensitive adhesive layer laminated together, a three-layer sheet or sheet consisting of three or more layers with one or more intermediate layers laminated between the substrate and the adhesive or pressure-sensitive adhesive layer, a single-layer double-sided adhesive sheet or double-sided pressure-sensitive adhesive sheet consisting of only an adhesive or pressure-sensitive adhesive layer, or a double-sided adhesive sheet or double-sided pressure-sensitive adhesive sheet with adhesive or pressure-sensitive adhesive layers laminated on both outermost surfaces of one or more intermediate layers.

[0045] The driving equipment in the above embodiments may be electric equipment such as rotary motors, linear motors, single-axis robots, so-called articulated robots with joints on two or three or more axes, actuators such as air cylinders, hydraulic cylinders, rodless cylinders and rotary cylinders, which may be used alone, or may be a direct or indirect combination of such electric equipment and actuators, or may be electric equipment, actuators, etc. that are capable of torque control, speed control, etc. for the output parts of such electric equipment, actuators, etc., or may not be capable of torque control, speed control, etc.

[0046] In the above embodiments, when a rotating member such as a roller is used, a driving device for rotating the rotating member may be provided, or the surface of the rotating member or the rotating member itself may be made of a deformable member such as rubber or resin, or the surface of the rotating member or the rotating member itself may be made of a non-deformable member, or other members such as a rotating or non-rotating shaft or blade may be used instead of the roller, or when a peeling means or peeling member such as a peeling plate or peeling roller is used to peel the material to be peeled, a member such as a plate-shaped member, a round bar, or a roller may be used instead of the above examples, or the peeling member may be made of a deformable member such as rubber or resin, or a non-deformable member. [Explanation of symbols]

[0047] EA: Blocking detection device 10...Detection means 20...Detection means 31...Rotation motor 34... Peeling roller (peeling member) AS...Adhesive sheet (long) FL...Film (long body) RB1...rolled object (support) RL...Release sheet (support)

Claims

1. a detection means for detecting a physical phenomenon that occurs when the elongated body that is placed on the support body is peeled off from the support body; a detecting means for detecting blocking caused by the long body being in close contact with the support, based on the detection result of the detecting means;

2. the support is a wound object formed by winding the elongated body, the detection means detects the behavior of the wound object, 2. The blocking detector according to claim 1, wherein the detecting means detects the blocking based on the behavior of the wound object.

3. the detection means detects the acceleration of the wound object, 3. The blocking detector according to claim 2, wherein the detecting means detects the blocking based on the acceleration of the wound object.

4. the support is a release sheet to which the elongated body is temporarily attached, the detection means detects the behavior of a peeling member peeling the elongated body from the release sheet, 2. The blocking detector according to claim 1, wherein the detector detects the blocking based on the behavior of the peeling member.

5. the detection means detects the acceleration of the peeling member, 5. The blocking detector according to claim 4, wherein the detector detects the blocking based on the acceleration of the peeling member.

6. the detection means detects the torque or rotation speed of a rotary motor that feeds out the elongated body, 2. The blocking detector according to claim 1, wherein the detector detects the blocking based on the torque or the number of rotations of the rotary motor.

7. the detection means detects the amplitude of the elongated body peeled off from the support, 2. The blocking detector according to claim 1, wherein the detector detects the blocking based on the amplitude of the elongated body.

8. the detection means detects the charge amount of the elongated body peeled off from the support, 2. The blocking detection device according to claim 1, wherein the detection means detects the blocking based on the amount of charge on the long body.

9. a detection step of detecting a physical phenomenon that occurs when the elongated body that is placed on the support is peeled off from the support; a detecting step of detecting blocking caused by the elongated body being in close contact with the support, based on the detection result of the detecting step.

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