Management system

Abstract

The invention provides a management system capable of suppressing generation of abnormality in a product film. The management system is provided with: a cutting unit for cutting an original roll film into a product film and a residue; an introduction part for introducing the residue; a storage unit for storing the residue; a transfer piping unit that connects the introduction unit and the storage unit; a suction fan unit that sucks the residue from the introduction unit side toward the storage unit side; the cutting fan part is used for cutting off the residue; a vibration measurement unit that measures vibration data of the introduction unit; a data extraction unit that extracts, from the vibration data, first frequency region data of 50 Hz to 300 Hz and second frequency region data of 3000 Hz to 6000 Hz; a calculation unit that calculates a first feature amount and a second feature amount from the first frequency region data and the second frequency region data, respectively, and calculates a product of the first feature amount and the second feature amount; and a determination unit that determines that there is an abnormal omen for cutting the fan unit when the product of the first feature quantity and the second feature quantity is equal to or greater than a first threshold value.

Description

Technical Field

[0001] The present invention relates to a management system for managing abnormal signs of thin films such as polymer films. Background Art

[0002] Conventionally, in production lines for films such as polyimide films, a raw film roll is formed by spraying a resin solution from a T-die or the like onto a casting belt in a belt drying chamber, and the raw film roll is passed through a high-temperature furnace (so-called tentering furnace) and fired while being supported by needles so that both ends in the width direction of the raw film are pierced (e.g., Patent Document 1).

[0003] Then, the original film is peeled off from the needle by a needle-removing roller and conveyed to the downstream side by a slit roller, and the two end portions of the original film with puncture holes are cut by a slit knife to separate it into a product film and a residue, and the product film is wound up by a winding roller.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2014-148125 Summary of the invention

[0007] Problem that the invention aims to solve

[0008] In addition, a recovery piping system is provided in the production line, and the recovery piping system recovers the residue generated by cutting the original roll film with the slit knife into a flexible container bag (hereinafter also simply referred to as a flexible bag).

[0009] Specifically, the recovery piping system is provided with a cutting fan and a suction fan in the middle of a conveying piping section for conveying the residue, and a flexible bag is provided at the downstream end of the conveying piping section. Furthermore, the recovery piping system introduces the residue into the conveying piping section from the opening at the upstream end of the conveying piping section, cuts the residue passing through the conveying piping section with the cutting fan, and conveys the cut residue to the flexible container bag with the suction fan.

[0010] Here, when the cutter fan has abnormalities such as blade breakage due to age-related degradation or the like, the residue cannot be cut well, and there is a problem that the inside of the conveying pipe is clogged with the residue.

[0011] However, since the transport piping portion is opaque and cannot be visually identified from the outside, it is impossible to determine from the appearance whether the cutting fan has an abnormality.

[0012] Therefore, in the previous recovery piping system, even if the cutting blower suddenly had an abnormality such as blade breakage, the abnormality would not be detected and would be left alone, and the cutting blower maintenance would not be performed until the conveying piping was clogged with debris.

[0013] In addition, if the conveying piping section continues to be clogged with debris, there is a problem that the balance between the suction force applied to the residue just cut off by the cutting section and the tension applied to the product film is broken, and the cutting by the cutting section may be defective, resulting in a so-called convex edge in which the cut surface of the product film expands in a trumpet shape.

[0014] Therefore, an object of the present invention is to provide a management system capable of suppressing the occurrence of abnormalities in product films.

[0015] Solutions for solving problems

[0016] In order to solve the above problems, the inventors have come up with the idea that if the abnormality of the cutting fan is detected by vibration sound instead of by visual recognition, even if the residue is not visually recognized to be blocked in the conveying piping, the sign of the blockage of the residue can be determined. In addition, if the sign of the blockage of the residue can be determined, the balance between the suction force applied to the residue just cut by the cutting part and the tension applied to the product film can be prevented from being broken.

[0017] Therefore, the present inventors examined the vibration sound generated near the inlet of the transport piping portion.

[0018] That is, when the cutting fan has an abnormality such as blade breakage, the cutting sound when cutting the residue should be different from that in the normal state. In addition, if the cutting fan continues to have an abnormality such as blade breakage, the residue will gradually clog, and the balance between the attraction applied to the residue just cut and the tension applied to the product film will be broken. As a result, the residue will contact the inner wall of the conveying piping part, the number of contacts between the residue and the conveying piping part should increase, and the contact sound should become louder.

[0019] Therefore, based on the above idea, the inventors conducted research on the vibration sound detected near the inlet of the conveying piping section. As a result, they successfully separated the vibration sound detected near the inlet of the conveying piping section into a vibration sound component caused by abnormalities such as blade breakage of the cutting blower and a contact sound component caused by the contact between the residue and the conveying piping section. It was found that by combining these vibration sound components and contact sound components, it is possible to judge the abnormal signs of the cutting blower.

[0020] A technical solution of the present invention is a management system, wherein the management system comprises: a cutting section, which cuts the original roll film into product film and residue; an introduction section, which introduces the residue generated after being cut by the cutting section; a storage section, which stores the residue; a conveying piping section, which connects the introduction section and the storage section; a suction fan section, which sucks the residue from the introduction section side toward the storage section side; a cutting fan section, which is arranged in the middle of the conveying piping section, and the cutting fan section cuts off the residue moving from the introduction section side toward the storage section side; and a vibration measuring section, which measures The vibration data of the importing part; a data extraction part, which extracts the first frequency area data of 50Hz to 300Hz and the second frequency area data of 3000Hz to 6000Hz from the vibration data measured by the vibration measuring part; a calculation part, which calculates the first characteristic quantity and the second characteristic quantity according to the first frequency area data and the second frequency area data, respectively, and calculates the product of the first characteristic quantity and the second characteristic quantity; and a judgment part, when the product of the first characteristic quantity and the second characteristic quantity is greater than the first threshold value, the judgment part judges that there is a sign of abnormality in the cutting blower part.

[0021] According to the present technical solution, since it is possible to judge the abnormal signs caused by the cutting blower unit through the vibration data measured by the vibration measuring unit, when it is judged that there are abnormal signs of the cutting blower unit, by maintaining the cutting blower unit, poor cutting of the cutting portion caused by the cutting blower unit can be prevented, and abnormalities in the product film can be suppressed.

[0022] A preferred technical solution is that the management system includes a first position adjustment unit, which can adjust the relative position of the introduction unit with respect to the cutting unit when the product of the first feature value and the second feature value is greater than a first threshold value.

[0023] According to the technical solution, by adjusting the relative position of the introduction part so that the residue is not easy to contact the introduction part, the impact can be alleviated, and the balance between the attraction applied to the residue just after cutting and the tension applied to the product film can be achieved. Therefore, it is possible to further prevent the cutting part from cutting poorly and further suppress the abnormality of the product film.

[0024] A preferred technical solution is that the cutting section is composed of a slit roller and a slit knife section, and the management system has a second position adjustment section. When the product of the first characteristic quantity and the second characteristic quantity is greater than a first threshold value, the second position adjustment section can adjust the relative position of the slit knife with respect to the slit roller.

[0025] According to the technical solution, by adjusting the relative position of the slit blade so that the residue is not easy to contact the introduction part, the impact can be alleviated, and the balance between the attraction applied to the residue just after cutting and the tension applied to the product film can be achieved. Therefore, it is possible to further prevent the cutting part from cutting poorly and suppress the abnormality of the product film.

[0026] In addition, wrinkles may be formed on the original film due to the conveying speed, etc., and the product film may be cut while the original film is wrinkled, so that wrinkles may also be formed on the product film. If the wrinkles on the original film and the product film are left untreated, the wrinkles may become larger or the cutting position may be greatly offset, resulting in poor cutting of the cut portion.

[0027] Therefore, the inventors of the present invention thought that if wrinkles of the original film and / or product film can be detected based on the vibration sound measured by the vibration measuring unit, abnormalities of the product film caused by wrinkles can be suppressed, and conducted research. As a result, the inventors of the present invention found that the component caused by the generation of wrinkles can be separated from the vibration sound measured by the vibration measuring unit.

[0028] A preferred technical solution is that the data extraction unit can extract the third frequency region data of 6000Hz to 12500Hz from the vibration data, the calculation unit can calculate the third characteristic value based on the third frequency region data, and when the third characteristic value is above the second threshold value, the judgment unit judges that there is a sign of abnormality of the product film.

[0029] According to the technical solution, since the sign of abnormality of the product film caused by the generation of wrinkles can be determined by the vibration data measured by the vibration measuring unit, it is possible to prevent the cutting failure of the cutting unit caused by the generation of wrinkles and suppress the generation of abnormality in the product film.

[0030] Furthermore, if the transportation piping is left unattended with clogging due to debris, the pressure in the transportation piping will be increased by the suction fan. Therefore, it is thought that clogging due to debris can be detected by detecting the pressure in the piping.

[0031] Therefore, a preferred technical solution is that the management system has a pressure measuring unit, which measures the first pressure of the conveying piping unit at the upstream side of the suction fan unit, and when the first pressure is above a third threshold value, the judgment unit judges that there is a sign of abnormality of the product film.

[0032] According to this aspect, since the sign of abnormality of the product film can be determined by the pressure of the portion of the transport piping section upstream of the suction fan section, the occurrence of abnormality in the product film can be further suppressed.

[0033] In a more preferred embodiment, the first pressure is a pressure at a portion of the transport piping portion that is upstream of the cutting blower portion.

[0034] According to the present technical solution, it is possible to determine the abnormality sign of the product film with further high accuracy.

[0035] A technical solution of the present invention is a management system, wherein the management system comprises: a plurality of cutting sections, which cut near both ends in the width direction of the original roll film to separate it into a product film and a residue; a plurality of introduction sections, which are arranged corresponding to the plurality of cutting sections and respectively introduce the residues generated after being cut by the plurality of cutting sections; a storage section, which stores the residues; a conveying piping section, which has a main piping section and a plurality of branch piping sections that merge from the plurality of introduction sections to the main piping section; a suction fan section, which The residue is sucked from the multiple inlet parts to the storage part; a cutting blower part is provided in the middle of the main piping part, and the cutting blower part cuts off the residue moving from the inlet part to the storage part; a pressure measuring part measures a first pressure of the main piping part which is downstream of a confluent part with the multiple branch piping parts and upstream of the cutting blower part; and a judgment part which judges that there is a sign of abnormality of the product film when the first pressure is above a threshold value.

[0036] According to the technical solution, it is possible to suppress the occurrence of abnormalities in the product film.

[0037] As long as the above technical solutions are included in the technical scope of the present invention, the technical solutions may be mutually dependent or may refer to or replace a part of the structure.

[0038] Effects of the Invention

[0039] According to the management system of the present invention, it is possible to suppress the occurrence of abnormality in the product film. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a side view schematically showing the management system according to the first embodiment of the present invention.

[0041] Figure 2 yes Figure 1 A three-dimensional view of the vicinity of the winding section.

[0042] Figure 3 yes Figure 2 Cross-sectional view of the residue recovery system.

[0043] Figure 4 yes Figure 1 Block diagram of the management system.

[0044] Figure 5 yes Figure 1 Flowchart of the vibration side judgment action of the management system.

[0045] Figure 6 yes Figure 1 Flow chart of the pressure side judgment action of the management system. DETAILED DESCRIPTION

[0046] Hereinafter, embodiments of the present invention will be described in detail.

[0047] The management system 1 according to the first embodiment of the present invention is a manufacturing system for manufacturing a product film 101 such as a polyimide film, and can perform manufacturing while managing abnormalities related to the product film 101 .

[0048] like Figure 1 As such, the management system 1 includes an original film forming unit 2, a peeling unit 3, a needle feeding unit 5, a tentering unit 6, a winding unit 7, and a control unit 8 (see Figure 4 ).

[0049] (Original film production section 2)

[0050] like Figure 1 Thus, the stock film forming section 2 is a part for producing the stock film 100 from a film raw material, and mainly includes a resin raw material supply section 10 and a casting belt section 11 .

[0051] The resin raw material supply unit 10 is a portion that applies the film raw material of the original film 100 onto the casting belt unit 11 .

[0052] The casting belt section 11 is composed of at least a pair of rollers 12a and 12b and an endless belt 13 stretched over the pair of rollers 12a and 12b.

[0053] (Peeling section 3)

[0054] like Figure 1 Thus, the peeling section 3 includes a plurality of conveying rollers 15a to 15d, which are used to peel the original film 100 from the casting belt section 11 using the conveying rollers 15a, and can convey the original film 100 from the casting belt section 11 to the tenter section 6 using the conveying rollers 15a to 15d.

[0055] (Needle transport unit 5)

[0056] like Figure 1 , Figure 2 Thus, the needle transport unit 5 includes a pair of needle plates 20 , and is a portion that supports the vicinity of both ends of the original film 100 in the width direction (direction perpendicular to the transport direction of the original film 100 ) by the needles 22 of the pair of needle plates 20 .

[0057] The pin transport section 5 can transport the original film 100 from the peeling section 3 to the winding section 7 through the tenter section 6 at a predetermined speed.

[0058] The pin plate 20 includes a base material 21 and a plurality of pins 22 that are erected from the base material 21 and arranged in a row. The pins 22 pierce the original film 100 , thereby supporting the original film 100 .

[0059] The needles 22 stand upright from one main surface of the substrate 21 , and the tip of the needles 22 is sharp.

[0060] (Tentering section 6)

[0061] like Figure 1 Thus, tenter section 6 includes hot air drying furnace 30 and firing furnace 31 .

[0062] The hot air drying furnace 30 is a part that blows hot air to the original film 100 supported by the pins 22 of the pin transport unit 5 to dry it.

[0063] The firing furnace 31 is a part that heats and fires the original film 100 supported by the needles 22 of the needle transport unit 5 .

[0064] (Coiling section 7)

[0065] like Figure 1 , Figure 2 Thus, the winding section 7 includes a plurality of conveying rollers 50a to 50e, slit knife sections 51a and 51b (cutting sections), knife position adjustment sections 52a and 52b (second position adjustment sections), a winding roller 53, a residue recovery system 55, and vibration measuring sections 56a and 56b.

[0066] like Figure 2 Thus, the conveying rollers 50a to 50e convey the original film 100 or the product film 101 toward the winding roller 53. Among the conveying rollers 50a to 50e, there are a pressing roller 50a, a pin-removing roller 50b, and a slit roller 50d (cutting portion).

[0067] like Figure 1 , Figure 2 Thus, the pressing roller 50a is a roller that presses the original film 100 from the upper side.

[0068] The needle-removing roller 50 b is a roller for removing the original film 100 from the needles 22 of the needle transport unit 5 .

[0069] like Figure 3 As described above, the slit roller 50d is a roller having the slits 60a and 60b near both end portions.

[0070] The slits 60a and 60b are recessed portions having a depth in the radial direction of the slit roller 50d and extending in the circumferential direction, and are blade receiving portions that receive the slit blade portions 51a and 51b.

[0071] like Figure 2 , Figure 3 Thus, the slit blade portions 51a, 51b are arranged in pair with the slits 60a, 60b of the slit roller 50d, and together with the slits 60a, 60b of the slit roller 50d, constitute a cutting portion for clamping the original roll film 100 and cutting it into the product film 101 and the residue 102.

[0072] The blades of the slit blade parts 51a and 51b extend along the slits 60a and 60b of the slit roller 50d.

[0073] The knife position adjusting parts 52a and 52b are parts which adjust the relative positions of the slit knife parts 51a and 51b with respect to the slit roller 50d.

[0074] The knife position adjusting parts 52a and 52b of this embodiment can adjust the positions of the slit knife parts 51a and 51b in the width direction (the axial direction of the slit roller 50d) and the conveying direction.

[0075] like Figure 2 Thus, the winding roll 53 is a roll for winding up the product film 101 obtained after being cut by the slit blade portions 51a and 51b.

[0076] like Figure 2 , Figure 3 In this way, the residue recovery system 55 recovers the residue 102 (edge ​​portion) generated after the cutting by the slit blade portions 51 a and 51 b from the winding portion 7 .

[0077] The residue recovery system 55 includes an introduction section 70a, 70b, a conveying piping section 71, a cutting fan section 72, a suction fan section 73, a flexible bag section 75 (storage section), a pressure measuring section 76 and piping position adjustment sections 77a, 77b (first position adjustment section).

[0078] The introduction portions 70 a and 70 b are portions for introducing the residual material 102 generated after cutting by the slit blade portions 51 a and 51 b into the transport piping portion 71 .

[0079] The transport piping section 71 is a portion that connects the introduction sections 70 a and 70 b and the flexible bag section 75 and introduces the residual material 102 into the flexible bag section 75 .

[0080] like Figure 3Thus, the delivery piping section 71 includes a plurality of branch piping sections 80 a and 80 b , a merging section 81 , and a trunk piping section 82 , and the branch piping sections 80 a and 80 b are merged into the trunk piping section 82 at the merging section 81 .

[0081] The branch pipes 80 a and 80 b are pipes that connect the introduction sections 70 a and 70 b and the junction 81 .

[0082] The merging portion 81 is a merging portion where the branch pipe portions 80 a and 80 b and the trunk pipe portion 82 merge.

[0083] The trunk piping portion 82 is a piping portion that connects the junction portion 81 and the flexible bag portion 75 .

[0084] like Figure 3 In this way, the cutter blower unit 72 includes the rotating blade unit 85 , and by rotating the rotating blade unit 85 , the residue 102 passing through the main pipe unit 82 can be cut.

[0085] The suction fan portion 73 is a portion that sucks the residual material 102 from the introduction portions 70 a and 70 b side toward the flexible bag portion 75 side.

[0086] The suction fan unit 73 can suck the residue 102 at a constant speed.

[0087] The flexible bag portion 75 is a bag-shaped storage portion that stores the residual material 102 cut by the cutter blower portion 72 , and is attachable to and detachable from the transport piping portion 71 .

[0088] That is, in the residue recovery system 55 , when a predetermined amount of residue 102 is stored in the flexible bag portion 75 , the flexible bag portion 75 can be replaced with a new one.

[0089] The pressure measuring unit 76 is a pressure sensor that measures the pressure (first pressure) in the transport piping unit 71 .

[0090] like Figure 2 As described above, the vibration measuring parts 56a and 56b are provided in the vicinity of the introduction parts 70a and 70b, and are vibration sensors that measure the vibration of the introduction parts 70a and 70b.

[0091] The vibration measuring parts 56 a and 56 b are also located near the slit blade parts 51 a and 51 b and can also measure vibrations generated when the original film 100 is cut by the slit blade parts 51 a and 51 b and the slit roller 50 d .

[0092] That is, the vibration measuring parts 56a, 56b are located near the introduction parts 70a, 70b and near the slit knife parts 51a, 51b, and are within a range that can simultaneously detect the vibration of the introduction parts 70a, 70b and the vibration generated by the slit knife parts 51a, 51b and the slit roller 50d cutting the original roll film 100.

[0093] The pipe position adjusting portions 77a and 77b are portions that can adjust the relative positions of the introduction portions 70a and 70b with respect to the slit blade portions 51a and 51b.

[0094] It is preferable that the pipe position adjusting parts 77a and 77b can adjust the positions of the introduction parts 70a and 70b in the width direction (the axial direction of the slit roller 50d) and / or the conveying direction.

[0095] (Control Unit 8)

[0096] The control unit 8 is a computer having the following devices as a hardware structure: a central processing unit, which is composed of a control device that controls each device and a computing device that calculates data; a storage device that stores data; an input device that inputs data from the outside; and an output device that outputs data to the outside.

[0097] like Figure 4 Thus, the control unit 8 includes a vibration monitoring unit 90 , a pressure monitoring unit 91 , a data extracting unit 92 , a calculating unit 93 , a determining unit 94 , a data storing unit 95 , and a notifying unit 96 .

[0098] The vibration monitoring unit 90 is a unit that monitors the vibration data measured by the vibration measuring units 56 a and 56 b .

[0099] The pressure monitoring unit 91 is a part that monitors the pressure data measured by the pressure measuring unit 76 .

[0100] The data extracting unit 92 extracts first frequency region data of 50 Hz to 300 Hz, second frequency region data of 3000 Hz to 6000 Hz, and third frequency region data of 6000 Hz to 12500 Hz from the vibration data measured by the vibration measuring units 56 a and 56 b .

[0101] The calculation unit 93 is a part that calculates the feature quantities F1 to F3 based on the frequency region data extracted by the data extraction unit 92 .

[0102] Specifically, the calculation unit 93 calculates the feature amounts F1 to F3 using the quantiles of each frequency region data.

[0103] For example, the first feature value F1 of the first frequency region data is calculated using the first quartile of the first frequency region data, and the second feature value F2 of the second frequency region data is calculated using the third quartile of the second frequency region data. In addition, the third feature value F3 of the third frequency region data is calculated using the third quartile of the third frequency region data.

[0104] The determination unit 94 determines the location of the abnormality sign of the cutting blower unit 72 using the first feature quantity F1 of the first frequency region data and the second feature quantity F2 of the second frequency region data calculated by the calculation unit 93 .

[0105] Furthermore, the determination unit 94 also determines the location of the abnormality sign of the product film 101 using the third feature amount F3 of the third frequency region data calculated by the calculation unit 93 .

[0106] Furthermore, the determination unit 94 is also a part that determines the sign of bulging of the product film 101 based on the pressure measured by the pressure measuring unit 76 .

[0107] The data storage unit 95 is a location that stores past and present vibration data measured by the vibration measuring units 56a and 56b, pressure data measured by the pressure measuring unit 76, data of each frequency region, characteristic values ​​F1 to F3 of each frequency region data, and judgment results of the past judgment unit 94.

[0108] The notification unit 96 is a part that notifies the operator when the determination unit 94 determines that there is a sign of abnormality.

[0109] The notification method of the notification unit 96 is not particularly limited, and for example, notification can be performed using sound, color, video, image, language, or the like.

[0110] Next, the flow of manufacturing the product film 101 in the management system 1 will be described.

[0111] First, if Figure 1 Thus, in the stock film forming section 2 , a liquid or gel-like film raw material is ejected from the resin raw material supply section 10 onto the casting belt section 11 , and a thin stock film 100 is formed on the casting belt section 11 .

[0112] Next, the original film 100 produced by the original film film-forming section 2 is peeled off from the casting belt section 11 using the conveying rollers 15a to 15d of the peeling section 3, and the original film 100 is conveyed toward the tentering section 6, and the original film 100 is pierced and supported by the needles 22 of the needle plate 20 of the needle conveying section 5.

[0113] Then, if Figure 1 , Figure 2In this manner, original film 100 is passed through tenter section 6 by needle transport section 5 in a state pierced by needles 22 , and is transported toward winding section 7 .

[0114] The original film 100 reaching the winding unit 7 is pressed by the pressing roller 50a and removed from the needles 22 of the needle transport unit 5 by the needle-removing roller 50b, thereby forming puncture holes 103a and 103b.

[0115] Then, on the slit roller 50d, the original film 100 is cut by the slit blades 51a and 51b near both ends in the width direction and on the inner side of the puncture holes 103a and 103b of the needle 22 to separate it into the product film 101 and the residue 102 having the puncture holes 103a and 103b.

[0116] The product film 101 is conveyed to the winding roller 53 by the conveying roller 50 e and is wound up by the winding roller 53 .

[0117] On the other hand, Figure 3 In this way, the residue 102 is introduced into the conveying piping section 71 from the inlet section 70a, 70b of the residue recovery system 55 in the state of hanging down in a belt shape from the slit knife sections 51a, 51b, and after passing through the confluence section 81, it is cut into residue pieces by the rotating knife section 85 of the cutting fan section 72, and the residue pieces are pushed toward the flexible bag section 75 by the suction force of the suction fan section 73 and stored in the flexible bag section 75.

[0118] Next, the predicted abnormality sign judging operation of judging a predicted abnormality sign in the management system 1 of the present embodiment will be described.

[0119] The abnormality sign determination operation of the present embodiment performs two types of determination operations, namely, a vibration-side determination operation and a pressure-side determination operation, independently.

[0120] (Vibration side judgment action)

[0121] The vibration side judgment operation is an operation to judge abnormal signs of the cutting blower unit 72 and abnormal signs of the product film 101 caused by wrinkles by vibrations near the introduction parts 70a, 70b and the slit blade parts 51a, 51b.

[0122] like Figure 5 Thus, in the vibration side determination operation, first, the vibration data measured by the vibration measuring units 56 a and 56 b are acquired (step S1 - 1 ), and the data extraction unit 92 extracts data in each frequency region from the vibration data (step S1 - 2 ).

[0123] Specifically, the data extraction unit 92 extracts from the vibration data first frequency area data of 50 Hz to 300 Hz corresponding to the vibration sound of the cutting blower unit 72, second frequency area data of 3000 Hz to 6000 Hz corresponding to the contact sound of the residue 102 contacting the conveying piping unit 71, and third frequency area data of 6000 Hz to 12500 Hz corresponding to the cutting of the original roll film 100 in a wrinkled state.

[0124] Next, the calculation unit 93 calculates the quantile of each frequency region data, and calculates the feature quantities F1 to F3 (step S1 - 3 ).

[0125] Specifically, the first feature value F1 of the first frequency region data is calculated from the first quartile of the first frequency region data, the second feature value F2 of the second frequency region data is calculated from the third quartile of the second frequency region data, and the third feature value F3 of the third frequency region data is calculated from the third quartile of the third frequency region data.

[0126] Next, the determination unit 94 calculates the product of the first feature quantity F1 and the second feature quantity F2, and determines whether the product of the feature quantities is smaller than the first threshold value (step S1-4).

[0127] At this time, the first threshold value can be appropriately set according to the type of the original film 100 , the conveying speed, and the like, but is preferably 3000 or more and 8000 or less, for example.

[0128] When the product of the feature quantities is smaller than the first threshold value (YES in step S1 - 4 ), it is determined whether the third feature quantity F3 is smaller than the second threshold value (step S1 - 5 ).

[0129] At this time, the second threshold value is appropriately set according to the type of the original film 100 , the conveying speed, and the like, but is preferably 100 or more and 300 or less, for example.

[0130] When the third feature quantity F3 is smaller than the second threshold value (YES in step S1 - 5 ), the determination unit 94 determines that no abnormality sign is found based on the vibration data (step S1 - 6 ).

[0131] On the other hand, in step S1-4, when the product of the characteristic quantities (F1×F2) is greater than the first threshold value ("No" in step S1-4), the process transfers to step S1-7, and the judgment unit 94 judges that there is a sign of abnormality in the cutting blower unit 72, and the notification unit 96 notifies that there is a sign of abnormality in the cutting blower unit 72.

[0132] In addition, in step S1-5, when the third feature value F3 is greater than the second threshold value ("No" in step S1-5), the process transfers to step S1-8, and the judgment unit 94 judges that there is a sign of abnormality caused by wrinkles in the product film 101, and the notification unit 96 notifies that there is a sign of abnormality in the product film 101.

[0133] (Pressure side judgment action)

[0134] The pressure side determination operation is an operation for determining the abnormality sign of the presence of a bulge in the product film 101 by the pressure in the transport piping section 71 .

[0135] like Figure 6 Thus, in the pressure side determination operation, first, the pressure data measured by the pressure measuring unit 76 is acquired (step S2 - 1 ), and the determination unit 94 determines whether the pressure (first pressure) is lower than the third threshold value (step S2 - 2 ).

[0136] At this time, the third threshold value can be appropriately set according to the type of the original film 100 , the conveying speed, and the like, but is preferably, for example, not less than −1.2 kPa and not more than −0.8 kPa.

[0137] When the pressure is lower than the third threshold value (YES in step S2 - 2 ), the determination unit 94 determines that no abnormality sign is found based on the pressure data (step S2 - 3 ).

[0138] On the other hand, in step S2-2, when the pressure is greater than the third threshold value ("No" in step S2-2), the process moves to step S2-4, the determination unit 94 determines that there is an abnormal sign of a convex edge on the product film 101, and the notification unit 96 notifies that there is an abnormal sign of a convex edge on the product film 101.

[0139] According to the management system 1 of the present embodiment, the vibrations near the inlet parts 70a and 70b are measured using the vibration measuring parts 56a and 56b, thereby making it possible to determine the signs of abnormality in the cutting blower part 72. Therefore, when it is determined that there are signs of abnormality in the cutting blower part 72, the cutting blower part 72 is maintained, thereby preventing poor cutting of the slit knife parts 51a and 51b caused by the cutting blower part 72, and suppressing the occurrence of abnormalities in the product film 101.

[0140] According to the management system 1 of the present embodiment, since the relative positions of the introduction parts 70a and 70b with respect to the cutting positions of the slit blade parts 51a and 51b can be adjusted by the piping position adjustment parts 77a and 77b, the impact degree can be mitigated by adjusting the relative positions of the introduction parts 70a and 70b, and a balance can be achieved between the suction force applied to the residue 102 just after cutting and the tension applied to the product film 101. Therefore, it is possible to further prevent the slit blade parts 51a and 51b from cutting poorly, and it is possible to further suppress the occurrence of abnormalities in the product film 101.

[0141] According to the management system 1 of the present embodiment, since the relative positions of the slit blade portions 51a and 51b with respect to the slits 60a and 60b of the slit roller 50d can be adjusted by the blade position adjusting portions 52a and 52b, the impact degree can be mitigated by adjusting the relative positions of the slit blade portions 51a and 51b, and a balance can be achieved between the suction force applied to the residue 102 just after cutting and the tension applied to the product film 101. Therefore, poor cutting of the slit blade portions 51a and 51b can be further prevented, and abnormality of the product film 101 can be suppressed.

[0142] According to the management system 1 of this embodiment, since the vibration data measured by the vibration measuring unit 56 can be used to judge the abnormal signs of the product film 101 caused by the generation of wrinkles, the poor cutting of the slit blade portions 51a and 51b caused by the generation of wrinkles can be prevented, and the abnormality of the product film 101 can be suppressed.

[0143] According to the management system 1 of this embodiment, by measuring the internal pressure of the portion of the conveying piping section 71 upstream of the suction fan section 73, abnormal signs such as convex edges of the product film 101 can be determined, and abnormalities of the product film 101 can be further suppressed.

[0144] According to the management system 1 of this embodiment, since the internal pressure of the portion of the conveying pipe section 71 downstream of the confluence section 81 and upstream of the cutting blower section 72 is measured, abnormal signs of the product film 101 can be managed with higher accuracy.

[0145] In the above-described embodiment, the vibration-side judgment operation and the pressure-side judgment operation are performed as the abnormality-predictive-sign judgment operation, but the present invention is not limited thereto. Only the vibration-side judgment operation may be performed as the abnormality-predictive-sign judgment operation.

[0146] In the above embodiment, the quantiles are calculated from each frequency region data to calculate the feature quantities F1 to F3, but the present invention is not limited thereto and the feature quantities F1 to F3 may be calculated from each frequency region data by other methods.

[0147] In the above embodiment, the data storage unit 95 is provided in the control unit 8, but the present invention is not limited thereto. The data storage unit 95 may also be provided outside the control unit 8. For example, the control unit 8 may be connected to a network such as the Internet or a local area network, and the data storage unit 95 may be provided on an external server connected to the network.

[0148] In the above embodiment, after determining whether the product of the feature quantities (F1×F2) is less than the first threshold value (step S1-4), it is determined whether the third feature quantity F3 is less than the second threshold value (step S1-5), but the present invention is not limited to this. Alternatively, after determining whether the third feature quantity F3 is less than the second threshold value, it is determined whether the product of the feature quantities (F1×F2) is less than the first threshold value. In this case, Figure 5 In the embodiment, step S1-4 and step S1-5 are interchanged, and step S1-7 and step S1-8 are interchanged.

[0149] In the above embodiment, the abnormal sign of the cutting fan unit 72 is judged (step S1-4) and the abnormal sign of the product film 101 caused by the wrinkles is judged (step S1-5) at the same time, but the present invention is not limited to this. Only the abnormal sign of the cutting fan unit 72 can be judged, or only the abnormal sign of the product film 101 caused by the wrinkles can be judged.

[0150] In the above embodiment, the needle transport unit 5 supports the original film 100 using a pair of needle plates 20 , but the present invention is not limited thereto. The needle transport unit 5 may support the original film 100 using one needle plate 20 or more than three needle plates 20 .

[0151] The above-described embodiments may be freely replaced or each component may be added between the embodiments as long as it is included in the technical scope of the present invention.

[0152] Description of Reference Numerals

[0153] 1. Management system; 50d, slit roller (cutting section); 51a, 51b, slit knife section (cutting section); 52, knife position adjustment section (second position adjustment section); 56a, 56b, vibration measurement section; 60a, 60b, slit; 70a, 70b, introduction section; 71, conveying piping section; 72, cutting fan section; 73, suction fan section; 75, flexible bag section (storage section); 76, pressure measurement section; 77, piping position adjustment section (first position adjustment section); 80a, 80b, branch piping section; 81, confluence section; 82, main piping section; 92, data extraction section; 93, calculation section; 94, judgment section; 100, original roll film; 101, product film; 102, residue.

Claims

1. A management system, wherein: The management system has: A cutting section, which cuts the original roll film into product film and residue; an introduction section for introducing the residue produced after being cut by the cutting section; A storage portion for storing the residue; a delivery piping portion connecting the introduction portion and the storage portion; A suction fan part, which sucks the residue from the introduction part side toward the storage part side; a cutting blower unit provided in the middle of the conveying piping unit and configured to cut off the residue moving from the introduction unit side toward the storage unit side; a vibration measuring unit configured to measure vibration data of the introduction unit; a data extraction unit that extracts first frequency region data of 50 Hz to 300 Hz and second frequency region data of 3000 Hz to 6000 Hz from the vibration data measured by the vibration measurement unit; a calculation unit that calculates a first feature quantity and a second feature quantity based on the first frequency region data and the second frequency region data, respectively, and calculates a product of the first feature quantity and the second feature quantity; as well as The determination unit determines that there is a sign of abnormality in the cutting blower unit when a product of the first characteristic value and the second characteristic value is equal to or greater than a first threshold value.

2. The management system according to claim 1, wherein: The management system includes a first position adjustment unit capable of adjusting a relative position of the introduction unit with respect to the cutting unit when a product of the first feature amount and the second feature amount is equal to or greater than a first threshold value.

3. The management system according to claim 1, wherein: The cutting part is composed of a slit roller and a slit knife part. The management system includes a second position adjustment unit capable of adjusting a relative position of the slit blade portion with respect to the slit roller when a product of the first feature amount and the second feature amount is equal to or greater than a first threshold value.

4. The management system according to any one of claims 1 to 3, wherein: The data extraction unit can extract the third frequency region data of 6000 Hz to 12500 Hz from the vibration data. The calculation unit is capable of calculating a third feature value based on the third frequency region data. When the third feature value is equal to or greater than a second threshold value, the determination unit determines that there is a sign of abnormality of the product film.

5. The management system according to any one of claims 1 to 3, wherein: The management system includes a pressure measuring unit that measures a first pressure at a portion of the transport piping unit that is upstream of the suction fan unit. The determination unit determines that there is a sign of abnormality of the product film when the first pressure is equal to or greater than a third threshold value.

6. The management system according to claim 5, wherein: The first pressure is a pressure at a portion of the transport pipe section that is upstream of the cutting blower section.

7. A management system, wherein: The management system has: A plurality of cutting sections, which cut the original film roll near both ends in the width direction to separate the original film roll into a product film and a residue; A plurality of introduction parts, the plurality of introduction parts are provided corresponding to the plurality of cutting parts, and respectively introduce the residues generated after being cut by the plurality of cutting parts; A storage portion for storing the residue; a transport piping section including a main piping section and a plurality of branch piping sections which merge from the plurality of introduction sections to the main piping section; a suction fan unit that sucks the residue from the plurality of introduction units toward the storage unit; a cutting blower section disposed in the middle of the main pipe section, the cutting blower section cutting off the residue moving from the introduction section side toward the storage section side; a pressure measuring unit configured to measure a first pressure at a portion of the main pipe section that is downstream of a confluent portion with the plurality of branch pipe sections and upstream of the cutting blower section; as well as The determination unit determines that there is a sign of abnormality of the product film when the first pressure is equal to or greater than a threshold value.

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