JP6285658B2 - Defect inspection system and film manufacturing apparatus - Google Patents

Description

  The present invention relates to a defect inspection system and a film manufacturing apparatus.

  A film such as a polarizing plate is wound around a core material after performing a defect inspection such as a foreign matter defect or an uneven defect. Information on the position and type of the defect (hereinafter referred to as defect information) is recorded on the film by printing a barcode on the edge of the film or marking the defective part. When the winding amount reaches a certain amount, the film wound around the core is separated from the upstream film and shipped as a raw roll. As a defect inspection system for inspecting a film defect as described above, a system including a defect inspection device and a recording device for recording defect information on a film is known on a film conveyance path ( For example, see Patent Document 1).

JP 2011-7779 A

  By the way, in the above defect inspection systems, for example, both sides of a film may be inspected. Therefore, it is conceivable to install defect inspection units corresponding to the front and back surfaces of the film, and to select and use them appropriately. However, with this configuration, the system itself becomes larger due to the increased installation space for the defect inspection section.

  The present invention has been made in view of the above circumstances, and provides a defect inspection system and a film manufacturing apparatus capable of performing defect inspection on both sides of a film while reducing the size.

  As a means for solving the above problems, according to the first aspect of the present invention, a film transport unit for transporting a belt-like film via the first transport path or the second transport path, and the first transport path Detected by a defect inspection unit that performs defect inspection on one side of the film conveyed via, or on the other side of the film conveyed via the second conveyance path, and the defect inspection unit A recording unit that records defect information on the defect on the film, and the film conveyance unit is a first conveyance roller unit around which the film is wound when passing through the first and second conveyance paths. And a second transport roller section around which the film is wound when passing through one of the first and second transport paths.

  Moreover, the said 1st aspect WHEREIN: The structure which detects the said conveyance path | route of the said film based on the conveyance direction of the said film may be sufficient as the said detection part.

  Moreover, the said 1st aspect WHEREIN: The structure provided with the alert notification means which notifies an alert to a user when the drive conditions of the system set beforehand and the detection result of the said detection part differ may be sufficient.

  In the first aspect, each of the first transport roller unit and the second transport roller unit includes a plurality of roller members, and the detection unit rotates in at least one of the roller members. The structure which detects the said conveyance path | route where the said film is conveyed based on may be sufficient.

  Moreover, the said 1st aspect WHEREIN: The structure provided with the control part which controls the recording operation of the said recording part with respect to the said film based on the detection result of the said detection part may be sufficient.

  According to the second aspect of the present invention, the defect inspection unit comprises: a film manufacturing unit that manufactures a strip-shaped film; and a defect inspection unit that performs a defect inspection of the film manufactured by the film manufacturing unit. As a film manufacturing apparatus having the defect inspection system of the first aspect is provided.

  According to the present invention, it is possible to perform defect inspection on both sides of a film while reducing the size.

The figure which shows schematic structure of a film manufacturing apparatus, and shows the state conveyed by the 1st film conveyance path | route. The figure which shows schematic structure of a film manufacturing apparatus, and shows the state conveyed by the 2nd film conveyance path | route. The block diagram which shows the electrical structure of a film manufacturing apparatus. The figure which shows schematic structure of a film manufacturing part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. In all the drawings below, the dimensions and ratios of the constituent elements are appropriately changed in order to make the drawings easy to see. In the following description and drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant description is omitted.

1 and 2 are schematic configuration diagrams of a film manufacturing apparatus according to an embodiment of the present invention. FIG. 1 shows a state in which a film is conveyed by a first film conveyance path 40A, and FIG. Shows a state of being conveyed by the second film conveyance path.
As shown in FIGS. 1 and 2, the film manufacturing apparatus 1 is a film manufacturing unit 10 for manufacturing a predetermined film 100 and a predetermined defect inspection of the film 100 manufactured by the film manufacturing unit 10. Defect inspection unit 5, control unit 50, and alarm notification means 60 are provided. The defect inspection unit 5 is constituted by a defect inspection system according to an embodiment of the present invention.

  The defect inspection unit 5 includes a defect inspection unit 20, a recording unit 30 capable of recording defect information relating to defects detected by the defect inspection unit 20 on the film 100, a film manufacturing unit 10, a defect inspection unit 20, and a recording unit. 30, and a film transport unit 40 that sequentially transports the film 100.

  In the defect inspection unit 5, the film transport unit 40 is connected to the film manufacturing unit 10 via the first film transport path (first transport path) 40A or the second film transport path (second transport path) 40B. The manufactured film 100 can be conveyed. The switching of the first film transport path 40A or the second film transport path 40B in the film transport unit 40 is performed by an operator.

  The defect inspection unit 20 detects defects in the film 100 by performing inspection processing such as reflection inspection, transmission inspection, oblique transmission inspection, and crossed Nicol transmission inspection on the film 100 being conveyed. The installation position of the defect inspection unit 20 is not limited to the place in FIG. 1, and may be any position as long as it is between the film manufacturing unit 10 and the printing apparatus 30 in the transport path of the film 100. .

  The defect inspection unit 20 is a defect in the film 100 of the illumination units 21 a and 22 a that irradiate the film 100 with light, and the light that is irradiated from the illumination units 21 a and 22 a and passes through the film 100 (one or both of reflection and transmission). And photodetectors 21b and 22b capable of detecting changes due to the presence or absence of the light. The defect inspection unit 20 includes an illumination unit and a photodetector for each type of defect to be inspected.

  The illumination units 21a and 22a irradiate light whose light intensity, wavelength, polarization state, and the like are adjusted according to the type of inspection performed by the defect inspection unit 20. The photodetectors 21b and 22b are configured by an image pickup device such as a CCD, and pick up an image of a portion of the film 100 irradiated with light by the illumination units 21a and 22a. The detection results (imaging results) of the photodetectors 21b and 22b are output to the control unit 50.

  In the present embodiment, when the film 100 transported via the first film transport path 40A reaches the defect inspection unit 20, the one surface 100b side faces the photodetectors 21b and 22b. On the other hand, when the film 100 transported via the second film transport path 40B reaches the defect inspection unit 20, the other surface 100c side faces the photodetectors 21b and 22b.

  That is, when 40 A of 1st film conveyance paths are selected in the film conveyance part 40, the defect inspection part 20 can detect the defect information on the one surface 100b side of the film 100, and the 2nd film in the film conveyance part 40 is detected. When the conveyance path 40B is selected, the defect inspection unit 20 can detect defect information on the other surface 100c side of the film 100. Here, the one surface 100b of the film 100 refers to the surface of the film 100 manufactured by the film manufacturing unit 10 on the side on which the first protection film 100B is bonded, as described later, and the other surface 100c of the film 100. Means the surface on the side where the second protection film 100C is bonded (see FIG. 4).

  The film manufacturing apparatus 1 includes the control unit 50 as an electronic control device that performs overall control of each component. FIG. 3 is a block diagram showing an electrical configuration of the film manufacturing apparatus 1. As shown in FIG. 3, the control unit 50 is electrically connected to the defect inspection unit 20 (photodetectors 21 b and 22 b), the recording unit 30, the film conveyance unit 40, the film conveyance direction detection unit 55, and the alarm notification unit 60. It is connected. The control unit 50 analyzes the images captured by the photodetectors 21b and 22b, and determines the position and type of the defect. When it is determined that the film 100 has a defect, the control unit 50 controls the recording unit 30 to record defect information on the film 100 as described later. The controller 50 drives the film transport unit 40 as described later to transport the film 100 via the first film transport path 40A or the second film transport path 40B. The control unit 50 transmits the detection result by the film transport direction detection unit 55. Further, the control unit 50 notifies the operator of an alarm by driving the alarm notification means 60 when a predetermined condition is satisfied as will be described later. The control unit 50 may have a first control unit that controls driving of the film transport unit 40 and a second control unit that controls the alarm notification unit 60. In this case, the first control unit controls only driving of the film transport unit 40. On the other hand, the second control unit sends a detection result by the film transport direction detection unit 55 to drive the alarm notification unit 60 to notify the operator of an alarm. Moreover, the structure which further has the 3rd control part which the control part 50 controls the film conveyance direction detection part 55 may be sufficient. That is, the control part 50 may be configured to separately control the driving of the film transport part 40, the film transport direction detection part 55, and the alarm notification means 60.

  In the present embodiment, the control unit 50 is configured to include a computer system. This computer system includes an arithmetic processing unit such as a CPU and a storage unit such as a memory and a hard disk. The control unit 50 of the present embodiment includes an interface that can execute communication with an external device of the computer system. An input device that can input an input signal may be connected to the control unit 50. The input device includes an input device such as a keyboard and a mouse, or a communication device that can input data from a device external to the computer system. The control unit 50 may include a display device such as a liquid crystal display that indicates the operation status of each unit of the film manufacturing apparatus 1 or may be connected to the display device.

  An operating system (OS) that controls the computer system is installed in the storage unit of the control unit 50. The storage unit of the control unit 50 stores a program that causes the arithmetic processing unit to control each unit of the film manufacturing apparatus 1 to execute processing for causing each unit of the film manufacturing apparatus 1 to accurately transport the film 100. Yes. Various types of information including programs recorded in the storage unit can be read by the arithmetic processing unit of the control unit 50. The control unit 50 may include a logic circuit such as an ASIC (Application Specific Integrated Circuit) that executes various processes required for controlling each unit of the film manufacturing apparatus 1.

  The storage unit is a concept including a semiconductor memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory), an external storage device such as a hard disk, a CD-ROM reader, and a disk-type storage medium. Functionally, the storage unit is a program that describes the operation control procedures of the film manufacturing unit 10, the defect inspection unit 20, the recording unit 30, the film transport unit 40, the film transport direction detection unit 55, and the alarm notification unit 60. A storage area for storing software and other various storage areas are set.

  The film conveyance direction detection unit 55 is configured by, for example, an encoder that can detect the rotation direction of rollers 41a and 42a, which will be described later, constituting the film conveyance unit 40, and based on the direction in which the rollers 41a and 42a rotate. The transport direction (that is, whether the film 100 is transported via the first film transport path 40A or the second film transport path 40B) is detected. In addition, the film conveyance direction detection part 55 is not limited to an encoder, For example, you may use the pulse generator attached to the rotating shaft of roller 41a, 42a.

  The alarm notification means 60 is for notifying the operator of a predetermined alarm. The method of notifying the alarm by the alarm notification means 60 is not particularly limited. For example, the alarm notification means 60 may be a system that makes an operator recognize an alarm by emitting a sound, a system that makes an operator recognize an alarm by lighting a lamp, or a system that combines these The alarm may be recognized with.

  1 and 2, the recording unit 30 is provided on the downstream side in the transport direction from the defect inspection unit 20 in the first film transport path 40A or the second film transport path 40B in which the film 100 is transported. The recording unit 30 uses the first surface 100b of the film 100 (the first protection film 100B is the first protection film 100B) to detect defect information regarding the defects detected by the defect inspection unit 20 in both the first film transport path 40A and the second film transport path 40B. Record on the side of the bonded side). The defect information includes information on the position and type of the defect.

  The recording unit 30 records defect information on the film 100 at a predetermined timing after the defect inspection is performed by the defect inspection unit 20. The timing at which recording is performed by the recording unit 30 is determined by the transport distance of the film 100 from the defect inspection unit 20 to the recording unit 30. For example, when a rotary encoder that measures the transport amount of the film 100 is disposed on the transport path of the film 100 and the transport amount of the film 100 (the number of pulses counted by the rotary encoder) reaches a predetermined value. The control unit 50 controls the recording unit 30 to record defect information on the film 100.

  For example, the recording unit 30 records defect information in the form of an identification code (one-dimensional barcode, two-dimensional barcode, QR code (registered trademark), etc.) on the surface of the film 100 (the end of the one surface 100b). In the code, for example, information indicating how far the defect detected by the defect inspection unit 20 is located along the film width direction from the position where the bar code is attached (defect information). The information regarding the type of the detected defect may be included in the identification code.

  The recording unit 30 directly displays the position of the defect on the surface of the film 100 (marking) by attaching a dot-shaped, line-shaped, or frame-shaped mark that includes the defect to the defective portion of the film 100. May be. At this time, information on the type of the result may be recorded by showing a symbol or pattern indicating the type of the defect together with the mark in the defective part. Moreover, the structure which affixes the label which attached | subjected the said marking on the surface of the film 100 may be sufficient as the recording part 30. FIG.

The film transport unit 40 includes a first transport roller unit 41, a second transport roller unit 42, and a film winding unit 44.
As shown in FIGS. 1 and 2, the first transport roller unit 41 is configured to wind the film 100 when the first film transport path 40 </ b> A and the second film transport path 40 </ b> B are selected. On the other hand, as shown in FIGS. 1 and 2, the second transport roller unit 42 is configured to wind the film 100 when the first film transport path 40 </ b> A is selected in the film transport unit 40.

  In this embodiment, the 1st conveyance roller part 41 is comprised from 41 A of front | former steps and 41 A of back | latter stages. The front part 41A and the rear part 41B are each composed of a plurality of rollers. For example, the front stage portion 41A is composed of a plurality (three in this embodiment) of rollers 41a, and the rear stage 41B is composed of a plurality of (in this embodiment, ten) rollers 41b.

  In addition, these rollers 41a and 41b may be comprised from the driven roller rotated with the conveyance force of the film 100, may be comprised from the main driving roller which provides the conveyance force to the film 100, and these are mixed. It may be configured as. In the front stage 41A and the rear stage 41B, the number of rollers 41a and 41b is not limited to the above, and can be changed as appropriate.

  In FIGS. 1 and 2, arrows shown along the outer peripheries of the rollers 41a and 41b indicate the rotation directions of the rollers 41a and 41b. 1 and 2, the rollers 41 a constituting the front portion 41 </ b> A are referred to as rollers 41 a 1, 41 a 2, and 41 a 3 in the order closer to the film manufacturing unit 10 in FIG.

  In the present embodiment, the second transport roller unit 42 includes a plurality of (four in the present embodiment) rollers 42a. In FIG. 2, the arrows shown along the outer periphery of each roller 42a indicate the rotation direction of the roller 42a.

  The roller 42a may be constituted by a driven roller that rotates by the conveyance force of the film 100, may be constituted by a main driving roller that imparts conveyance force to the film 100, or is constituted by mixing these. May be. In addition, in the 2nd conveyance roller part 42, the number of the rollers 42a is not limited above, It can change suitably.

  In FIGS. 1 and 2, the rollers 42 a are referred to as rollers 42 a 1, 42 a 2, 42 a 3, and 42 a 4 in order from the bottom to the top in FIG.

  Here, a case where the first film transport path 40A is selected by the operator will be described. When the operator selects the first film transport path 40A, the operator winds the film 100 around the rollers 41a and 41b constituting the path corresponding to the first film transport path 40A. In this case, as shown in FIG. 1, the film 100 drawn from the film manufacturing unit 10 is composed of the roller 41a1, the roller 41a2, the roller 41a3, and the rear part 41B of the front part 41A from the upstream side to the downstream side in the transport direction. It is wound in the order of (roller 41b).

  At this time, the roller 41a1 rotates counterclockwise as shown in FIG. 1, and the rollers 41a2 and 41a3 rotate clockwise. As shown in FIG. 1, each roller 41b of the rear stage portion 41B appropriately rotates in a predetermined direction so that the film 100 can be sequentially conveyed toward the downstream side.

  When the first film transport path 40A is selected in this way, the film 100 passes through the defect inspection section 20 from the left to the right in FIG. 1 by passing only the first transport roller section 41. . At this time, the film 100 is conveyed so that the one surface 100b faces the photodetectors 21b and 22b of the defect inspection unit 20. Therefore, the defect inspection part 20 can perform a defect inspection on the one surface 100b of the film 100 conveyed via the first film conveyance path 40A.

  The film 100 that has passed through the defect inspection unit 20 is transported to each roller 41b of the rear-stage unit 41B, and passes through the recording unit 30 from left to right in FIG. At this time, the film 100 is conveyed so that the one surface 100b faces the recording unit 30. Therefore, the recording unit 30 can record defect information on the one surface 100b of the film 100 conveyed via the first film conveyance path 40A.

  The film 100 that has passed through the roller 41b that is the most downstream in the transport direction in the rear stage portion 41B is wound around the film winding portion 44.

  Next, a case where the operator selects the second film transport path 40B will be described. When the operator selects the second film transport path 40 </ b> B, the operator winds the film 100 on each roller 42 a of the second transport roller unit 42 in addition to the rollers 41 a and 41 b of the first transport roller unit 41. In this case, as shown in FIG. 2, the film 100 drawn from the film manufacturing unit 10 is composed of a roller 41 a 1, a roller 42 a 1, a roller 41 a 3, a roller 41 a 2, and a roller in the front stage 41 A from the upstream side toward the downstream side in the transport direction. 42a2, the roller 42a3, the roller 42a4, and the back | latter stage part 41B (roller 41b) are wound in order.

  At this time, the rollers 41a1, 41a2, 41a3, 42a1 all rotate counterclockwise as shown in FIG. 2, and the rollers 42a2, 42a3, 42a4 rotate clockwise. As shown in FIG. 2, each roller 41b of the rear stage portion 41B appropriately rotates in a predetermined direction so that the film 100 can be sequentially conveyed toward the downstream side. In addition, the rotation direction of each roller 41b in the back | latter stage part 41B is common in 40A of 1st film conveyance paths, and the 2nd film conveyance path | route 40B.

  Thus, when the 2nd film conveyance path | route 40B is selected, the film 100 passes through the 1st conveyance roller part 41 and the 2nd conveyance roller part 42, and is defective so that it may go from right to left in FIG. It passes through the inspection unit 20. At this time, the film 100 is conveyed so that the other surface 100c faces the photodetectors 21b and 22b of the defect inspection unit 20. Therefore, the defect inspection unit 20 can perform a defect inspection on the other surface 100c of the film 100 conveyed via the second film conveyance path 40B.

  The film 100 that has passed the defect inspection unit 20 is routed above the defect inspection unit 20 via the rollers 42a2, 42a3, and 42a4 of the second transport roller unit 42, and then passes through the rollers 41b of the rear stage unit 41B. 2 and passes through the recording unit 30 from left to right in FIG. At this time, the film 100 is transported so that the one surface 100b faces the recording unit 30 as in the first film transport path 40A. Therefore, the recording unit 30 can record defect information on the one surface 100b of the film 100 conveyed via the second film conveyance path 40B.

  The film 100 that has passed through the roller 41b that is the most downstream in the transport direction in the rear stage portion 41B is wound around the film winding portion 44.

  In the present embodiment, when the first film transport path 40A is selected and when the second film transport path 40B is selected, the film transport path is a part of the front part 41A of the first transport roller section 41. The conveyance direction of the film 100 is switched.

  In the first transport roller unit 41, the rotation direction of the rollers 41a2 and 41a3 in the front-stage unit 41A is switched between when the second film transport path 40B is selected and when the first film transport path 40A is selected. It has become.

  The film transport direction detection unit 55 detects the rotation directions of the rollers 41 a 2 and 41 a 3 in the first transport roller unit 41 and the rollers 42 a of the second transport roller unit 42. The film transport direction detection unit 55 rotates only when the rollers 41a2, 41a3 or the second film transport path 40B whose rotation direction is changed by switching between the first film transport path 40A and the second film transport path 40B are selected. The rotation information of the roller 42a is acquired. That is, the film conveyance direction detection unit 55 can detect the direction in which the film 100 is conveyed, that is, whether the film 100 is conveyed by the first film conveyance path 40A or the second film conveyance path 40B. . The film conveyance direction detection unit 55 transmits the detection result to the control unit 50. The control unit 50 stores the detection result of the film transport direction detection unit 55 in the storage unit.

Then, the structure of the film manufacturing unit 10 is demonstrated.
FIG. 4 is a diagram illustrating a schematic configuration of the film manufacturing unit 10. As shown in FIG. 4, the film manufacturing unit 10 manufactures the said film 100 by bonding the protection films (surface protection film) 100B and 100C to the film base material 100A. The film base material 100A and the protection films 100B and 100C may be any strip-like film having flexibility, and the material and configuration thereof are not particularly limited. Hereinafter, the protection films 100B and 100C may be referred to as a first protection film 100B and a second protection film 100C, respectively.

  As shown in FIG. 4, the film manufacturing unit 10 includes a first line 11, a second line 12, a third line 13, a fourth line 14, and a fifth line 15. The second line 12 and the third line 13 constitute a conveyance line for the first protection film 100B. The fourth line 14 and the fifth line 15 constitute a transport line for the second protection film 100C. Further, the first line 11, the third line 13, and the fifth line 15 constitute a transport line for the film substrate 100 </ b> A.

  In each of the lines 11, 12, 13, 14, and 15, a plurality of rolls (for example, a guide roll 31 and a nip roll 33 in the present embodiment) for forming a transport path for the film base 100A and the protection films 100B and 100C are provided. , 34, 35, 36).

The first line 11 manufactures and transports the film substrate 100A. In the present embodiment, the film substrate 100A is a polarizing film, but the film substrate 100A is not limited thereto. In the first line 11, a dyeing process, a crosslinking process, a stretching process, and the like are performed on a PVA (Polyvinyl Alcohol) film that is a base material of a polarizer.
Thereafter, a film protective substrate 100A is manufactured by pasting a polarizer protective film made of TAC (Triacetylcellulose) or the like on both sides thereof. The film substrate 100A is not limited to a polarizing film, but may be other films such as a retardation film, a light diffusion film, a light reflecting film, a lens film, a conductive film, an insulating film, and a photosensitive film.

  The 2nd line 12 unwinds and conveys the 1st protection film 100B from the 1st original fabric roll R1. In the case of the present embodiment, the first protection film 100B is a PET (Polyethylene terephthalate) film, but the first protection film 100B is not limited to this.

  The third line 13 has a pair of nip rolls 33 and 34 that are arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of nip rolls 33 and 34, and the inside of the gap is a bonding position between the film base 100A and the first protection film 100B. In the gap, the film base 100A and the first protection film 100B are introduced in an overlapping manner. 100 A of film base materials and the 1st protection film 100B are sent out downstream while being pinched by the nip rolls 33 and 34. Thereby, the 1st protection film 100B is bonded by one side of 100A of film base materials.

  The 4th line 14 unwinds and conveys the 2nd protection film 100C from the 2nd original fabric roll R2. In the case of this embodiment, the second protection film 100C is a PET (Polyethylene terephthalate) film, but the second protection film 100C is not limited to this.

  The 5th line 15 bonds and conveys the 2nd protection film 100C on the other side (surface opposite to the surface where the 1st protection film 100B was bonded) of film base 100A. The said film 100 is manufactured by bonding the 1st protection film 100B and the 2nd protection film 100C to one side and the other side of 100 A of film base materials.

The fifth line 15 has a pair of nip rolls 35 and 36 that are arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of nip rolls 35 and 36, and the inside of the gap is a bonding position between the film base 100A and the second protection film 100C. In the gap, the film base 100A and the second protection film 100C are overlapped and introduced. 100 A of film base materials and the 2nd protection film 100C are sent out downstream while being pinched by the nip rolls 35 and 36. FIG. Thereby, the second protection film 100C is bonded to the other surface of the film base 100A.
Thus, the film manufacturing unit 10 can manufacture the film 100 by bonding the first protection film 100B and the second protection film 100C to both surfaces of the film base 100A.

  As described above, the film manufacturing apparatus 1 according to this embodiment switches the transport path of the film 100 to the first film transport path 40A or the second film transport path 40B, so that the defect inspection unit 5 Both-side defect inspection is possible. Further, since the defect inspection on both sides of the film 100 can be performed by one defect inspection unit, the apparatus configuration can be reduced in size as compared with the case where the defect inspection units are arranged on both sides.

  Switching of the first film transport path 40A or the second film transport path 40B is performed by the operator as described above. As shown in FIGS. 1 and 2, the pass line distances are different in the first film transport path 40A or the second film transport path 40B. Here, the pass line distance refers to the transport distance of the film 100 until it passes through the film manufacturing unit 10 and reaches the defect inspection unit 20, or the film that passes through the defect inspection unit 20 and reaches the recording unit 30. 100 transport distance.

  Therefore, the operator sets an operation recipe (driving condition) corresponding to the first film transport path 40A or the second film transport path 40B to be selected. Here, the operation recipe is a system such as the pass line distance corresponding to the first film transport path 40A or the second film transport path 40B through which the film 100 passes, the operation timing of the recording unit 30 corresponding to the pass line distance, and the like. Includes drive conditions.

  Such recipe setting is performed by an operator's recipe selection operation or an operator's input operation for each condition such as an optimal pass line distance. The set recipe is stored in the storage unit of the control unit 50.

  However, since an operator performs the work, an operation error may occur. For example, in the field where the film manufacturing apparatus 1 is used, the installation work of the film 100 with respect to the film manufacturing apparatus 1 and the recipe setting work after film installation may be executed by different operators. In such a case, there is a possibility that an error caused by an operator such as an input error of a pass line distance or a selection error of the first film transport path 40A or the second film transport path 40B may occur. It is difficult to eliminate completely.

  If the recipe is set by mistake, the set pass line distance and the actual film transport distance usually do not match. For this reason, a deviation occurs in the relative position (coordinates) in the defect of the film 100 detected by the defect inspection unit 20, or a deviation occurs in the timing of reaching the recording unit 30 after passing the defect inspection unit 20. This may cause a problem that the recording position of defect information on the film 100 is shifted.

  On the other hand, in the film manufacturing apparatus 1 according to the present embodiment, the film transport direction detection unit 55 has the film transport direction (that is, the first film transport path 40A and the second film transport path 40B via any of the films). 100 is transported), and the detection result is transmitted to the control unit 50. The control unit 50 compares the recipe stored in the storage unit with the transport direction of the film 100. When the stored recipe, that is, the recipe set by the operator is different from the actual transport direction of the film 100, the control unit 50 drives the alarm notification means 60 to notify the operator of the alarm. The control unit 50 drives the alarm notification unit 60 and stops the conveyance of the film 100 by the film conveyance unit 40.

  In this way, the film manufacturing apparatus 1 causes an operation error when the preset recipe is different from the conveyance path in which the film 100 is actually conveyed, that is, when the operator makes an operation error. It is possible to make the operator recognize by the alarm notification means 60. According to this, since the operator can recognize an operation mistake at an early stage, it is possible to prevent the marking position shift with respect to the film 100 from occurring.

  Moreover, the film manufacturing apparatus 1 is defective about both surfaces (the one surface 100b and the other surface 100c) of the film 100 when an operator changes the 1st film conveyance path | route 40A or the 2nd film conveyance path | route 40B as a conveyance path | route of the film 100. Inspection can be performed.

  In the above description, the control unit 50 has exemplified the case where the conveyance of the film 100 is stopped when the alarm notification unit 60 is driven. However, the present invention is not limited to this, and the actual conveyance path of the film 100 is not limited thereto. The defect position coordinates by the defect inspection unit 20 and the recording timing on the film 100 by the recording unit 30 may be corrected so as to correspond to the pass line distance. According to this, even when there is a mistake in the recipe setting by the operator, defect information can be recorded on the film 100 at the optimum timing according to the conveyance path that is actually conveyed. Therefore, it is possible to prevent the film 100 from being wasted by recording defect information at different positions on the film 100.

  As mentioned above, although the suitable embodiment example which concerns on this embodiment was demonstrated referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. Various shapes, combinations, and the like of the constituent members shown in the above-described examples are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

  For example, in the above-described embodiment, a case where information on defects is recorded on the one surface 100b of the film 100 in both the first film transport path 40A and the second film transport path 40B is taken as an example, but the present invention is not limited thereto. Moreover, you may record the information regarding a defect on the other surface 100c (surface by which the 2nd protection film 100C was bonded). Moreover, while recording the information regarding a defect on the one surface 100b in the 1st film conveyance path | route 40A, you may record the information regarding a defect on the other surface 100c in the 2nd film conveyance path | route 40B. Or while recording the information regarding a defect on the other side 100c in the 1st film conveyance path | route 40A, the information regarding a defect may be recorded on the one side 100b in the 2nd film conveyance path | route 40B.

  Moreover, in the said embodiment, although the case where the defect inspection part 20 arrange | positions only the downstream of the film manufacturing unit 10 was mentioned as an example, it is not limited to this, The 1st line 11 of the said film manufacturing unit 10, 2nd A defect inspection unit may be provided in the middle of at least one of the line 12 and the fourth line. According to this, the defect inspection in 100 A of film base materials before the protection films 100B and 100C are bonded can be performed, and the precision improvement of the defect inspection in the film 100 is achieved.

  In the above embodiment, the configuration in which the defect inspection unit 5 is incorporated in the film manufacturing apparatus 1 that inspects the film 100 manufactured by the film manufacturing unit 10 is taken as an example. It can also function as a single inspection apparatus for inspecting defects of the film manufactured in the above. In this case, the defect inspection of the film is performed by conveying the film from the raw roll to be inspected to the recording unit 30 while being unwound by the film conveying unit 40 and recording predetermined defect information, and then the film winding unit 44. It ends by being wound up by. Thus, after manufacturing the original fabric roll to be inspected, the film can be transported to another factory, and the defect inspection of the film can be performed using only the defect inspection unit 5 in the other factory.

DESCRIPTION OF SYMBOLS 1 ... Film manufacturing apparatus, 5 ... Defect inspection unit (defect inspection system), 10 ... Film manufacturing unit, 20 ... Defect inspection part, 30 ... Recording part, 40 ... Film conveyance part, 40A ... 1st film conveyance path | route (1st , 40B... Second film transport path (second transport path), 41... First transport roller section, 41 a... Roller, 42... Second transport roller section, 42 a. ... Film conveyance direction detection part (detection part), 60 ... Alarm notification means, 100 ... Film, 100b ... One side, 100c ... Other side

Claims (6)

A film transport section for transporting the belt-like film via the first transport path or the second transport path;
A defect inspection unit that performs defect inspection on one side of the film conveyed via the first conveyance path, or on the other side of the film conveyed via the second conveyance path; ,
A recording unit for recording defect information on defects detected by the defect inspection unit on the film,
When the film transport section passes through either the first transport path or the first transport roller section on which the film is wound when passing through the first and second transport paths. A defect inspection system comprising: a second transport roller section around which the film is wound ; and a detection section that detects whether the film passes through the first transport path or the second transport path . The defect inspection system according to claim 1 , wherein the detection unit detects the conveyance path of the film based on a conveyance direction of the film. Defect inspection system according to claim 1 or 2 comprising an alarm notifying means and the driving condition of the pre-configured system and the detector of the detection result notifies the alarm to the user if different. Each of the first transport roller unit and the second transport roller unit is composed of a plurality of roller members,
The defect inspection system according to any one of claims 1 to 3 , wherein the detection unit detects the transport path along which the film is transported based on at least one rotation direction of the roller member. The defect inspection system according to any one of claims 1 to 4 , further comprising a control unit that controls a recording operation of the recording unit with respect to the film based on a detection result of the detection unit. A film production unit for producing a strip-shaped film;
A defect inspection unit that performs a defect inspection of the film manufactured by the film manufacturing unit,
The film manufacturing apparatus which has a defect inspection system as described in any one of Claims 1-5 as the said defect inspection unit.

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