TW201506385A - Defect inspection system and film manufacturing apparatus - Google Patents

Abstract

A defect inspection system comprising: a film conveying portion that conveys a belt-like film; a defect inspection portion that performs a defect inspection of the film conveyed by the film conveying portion; and a recoding portion that is provided at a downstream side of the defect inspection portion in a film conveying route configured by the film conveying portion and that is configured to record a defect information, which is related to a defect detected by the defect inspection portion, on a surface of the film, wherein the film conveying portion includes a first conveying roller portion where the film is wound under both of a first mode where the defect information is recoded on a first surface of the film by the recoding portion and a second mode where the defect information is recoded on a second surface of the film and a second conveying roller portion where the film is wound under either one of the first mode and the second mode.

Description

Defect inspection system and film manufacturing device

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

The present application claims priority based on Japanese Patent Application No. 2013-161809, filed on Jan.

A film such as a polarizing plate is wound around a core material after being inspected for defects such as foreign matter defects or unevenness defects. Information on the position or type of the defect (hereinafter referred to as defect information) is printed on the film by printing a bar code at the end of the film or by marking the defect portion. When the film volume wound around the core material reaches a certain amount, the film on the upstream side is cut off and shipped as a raw material roll. In the defect inspection system for inspecting the defects of the film as described above, it is known that a defect inspection unit and a recording unit that records defect information on the film are provided on the film transport path (see, for example, Patent Document 1). .

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2011-7779

In the defect inspection system as described above, for example, depending on the material of the recording surface, the oil When the adhesion of the ink is poor, or when the recording surface is used as a bonding surface to which another film member is bonded after the defect inspection step, it is necessary to appropriately change the film recording surface on which the defect information is recorded on either the front surface or the back surface.

Therefore, it is conceivable to separately provide recording portions corresponding to the front and back surfaces of the film, and to use them as appropriate. However, in this configuration, since the installation cost increases, the cost increases, or the installation space of the recording unit increases, whereby the system itself becomes large. In addition, due to the large size of the system, the cost will increase.

The present invention has been made in view of the above circumstances, and an object of the invention is to provide a defect inspection system and a film manufacturing apparatus which can record defect information on both sides of a film at a low cost while suppressing an installation space.

In order to achieve the above object, the present invention employs the following means.

(1) A defect inspection system according to an aspect of the present invention includes: a film transport unit that transports a strip-shaped film; and a defect inspection unit that performs defect inspection of the film that is transported by the film transport unit; In the film transport path formed by the film transport unit, the defect information on the defect detected by the defect inspection unit is recorded on the recording unit of the film, and the film transport unit is further downstream than the defect inspection unit. The first transport roller unit includes a first mode in which the defect information is recorded on the first surface of the film and a second mode in which the defect information is recorded on the second surface by the recording unit. Each of the first and second modes is wound around the film, and the second transfer roller unit is wound around the film.

(2) In the aspect of the above aspect (1), the first transport roller unit may switch between the first mode and the second mode to switch between the part of the film transport path. The direction in which the film is conveyed.

(3) In the above aspect (1) or (2), the film transport unit may transport the film in the first film transport path in the first mode, and the second film in the second mode. The first transport roller unit and the first transport roller are disposed so that the distance between the defect inspection unit and the recording unit is equal to each other in the first film transport path and the second film transport path. 2 Transfer the roller.

(4) In any one of the above aspects (1) to (3), the recording unit may record the defect information on the film wound around the first conveying roller unit.

(5) In any one of the above aspects (1) to (4), at least one of the first transport roller portion and the second transport roller portion may include a plurality of roller members.

(6) A film manufacturing apparatus according to an aspect of the present invention includes: a film manufacturing unit that manufactures a strip film; and a defect inspecting unit that performs defect inspection of the film manufactured by the film manufacturing unit, and has Any one of the above (1) to (5) is used as the defect inspection unit.

According to the present invention, it is possible to record defect information on both sides of the film at low cost while suppressing the installation space.

1‧‧‧ film manufacturing equipment

5‧‧‧ Defect inspection unit (defect inspection system)

10‧‧‧Film manufacturing unit

11, 12, 13, 14, 15‧ ‧ lines

20‧‧‧Defect Inspection Department

21a, 22a‧‧‧Lighting Department

21b, 22b‧‧‧Photodetector

30‧‧‧Record Department

31‧‧‧Guide Roller

33, 34, 35, 36‧‧‧ clamping rollers

40‧‧‧ Film Transport Department

40A‧‧‧1st film transport path

40B‧‧‧2nd film transport path

41‧‧‧One-side roller for recording (second transport roller)

41a‧‧‧Roller

42‧‧‧The other part of the recording roller (the second conveying roller)

42a‧‧‧Roller

43‧‧‧1st transport roller

43A‧‧‧The former section

43B‧‧ mid-section

43C‧‧‧The last section

43a‧‧‧Roller

43a1, 43a2, 43a3‧‧ ‧rollers

43b‧‧‧Roller

43b1, 43b2, 43b3‧‧ ‧rollers

43c‧‧‧Roller

44‧‧‧ Film Winding Department

45‧‧‧2nd transport roller

50‧‧‧Control Department

100‧‧‧ film

100b‧‧‧ one side (first side)

100c‧‧‧The other side (2nd side)

100A‧‧‧ film substrate

100B, 100C‧‧‧ protective film

R1‧‧‧1st raw material roll

R2‧‧‧ second raw material roll

The first figure shows a schematic configuration of a film manufacturing apparatus, and shows a state in which it is conveyed by the first film transport path.

The second drawing shows a schematic configuration of the film manufacturing apparatus, and shows a state in which it is conveyed by the second film transport path.

The third drawing shows a schematic configuration of the film manufacturing unit.

The embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the following embodiments. In addition, in all of the following illustrations, in order to make an illustration easy to view, the size, ratio, and the like of each component are appropriately changed. In the following description and the drawings, the same or corresponding elements are denoted by the same reference numerals, and the repeated description is omitted.

The first and second drawings are schematic configuration diagrams of a film production apparatus according to an embodiment of the present invention. The first diagram shows the state in which the film is conveyed by the first film transport path, and the second image display film is the second. The state in which the film transport path is transported.

As shown in the first and second figures, the film manufacturing apparatus 1 is provided with a film manufacturing unit 10 for manufacturing a predetermined film 100, and a defect inspection for performing predetermined defect inspection of the film 100 manufactured by the film manufacturing unit 10. Unit 5 and control unit 50.

Among them, each component of the film manufacturing apparatus 1 is collectively controlled by the above-described control unit 50 as an electronic control unit. 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; and a recording unit 30 that records defect information on defects detected by the defect inspection unit 20 on both surfaces of the film 100; and the film manufacturing unit 10 and the defect The film transport unit 40 of the film 100 is sequentially transferred between the inspection unit 20 and the recording unit 30.

In the defect inspection unit 5, the film transport unit 40 can transport the film 100 produced in the film production unit 10 via the first film transport path 40A or the second film transport path 40B. The switching of the first film transport path 40A or the second film transport path 40B in the membrane transport unit 40 is performed by an operator. The work performed by the staff.

In the present embodiment, when the film 100 conveyed through the first film transport path 40A reaches the recording unit 30, the side (first surface) 100b faces the recording unit 30. On the other hand, when the film 100 conveyed through the second film transport path 40B reaches the recording unit 30, the other surface (second surface) 100c faces the recording unit 30. In other words, when the first film transport path 40A is selected in the film transport unit 40, the recording unit 30 can record the defect information on the one surface 100b side of the film 100, and when the second film transport path 40B is selected in the film transport unit 40, The recording unit 30 can record defect information on the other side 100c side of the film 100. Here, the one surface 100b of the film 100 refers to the surface on the side where the first protective film 100B is bonded to the film 100 produced by the film manufacturing unit 10, and the other surface 100c of the film 100 is referred to as a fitting. There is a surface on the side of the second protective film 100C (see the third drawing).

The defect inspection unit 20 performs inspection processing such as reflection inspection, transmission inspection, oblique transmission inspection, and crossed Nicol transmission inspection on the film 100 being conveyed, thereby detecting defects of the film 100. Here, the installation position of the defect inspection unit 20 may be any between the film manufacturing unit 10 and the recording unit 30 in the conveyance path of the film 100, and is not limited to the place of the first drawing.

The defect inspection unit 20 includes illumination units 21a and 22a that emit light to the film 100, and light in the film 100 that can be detected by the illumination units 21a and 22a via the (reflection and transmission) film 100. The photodetectors 21b, 22b are free from changes due to defects. 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 emit light such as an adjusted light intensity, a wavelength, or a polarization state in response to the type of inspection performed by the defect inspection unit 20. The photodetectors 21b and 22b are composed of imaging elements such as CCDs, and the film 100 of the portion irradiated with light by the illumination units 21a and 22a is advanced. Line camera. The detection results (imaging results) of the photodetectors 21b and 22b are output to the control unit 50.

In the present embodiment, the film transport unit 40 is one of the first film transport path 40A and the second film transport path 40B, and the other surface 100c is opposed to the photodetectors 21b and 22b. The film 100 is transported to the defect inspection unit 20.

The control unit 50 analyzes the image captured by the photodetectors 21b and 22b to determine the position, type, and the like of the defect. When the control unit 50 determines that there is a defect in the film 100, it controls the recording unit 30 to record the defect information on the film 100 as will be described later.

In the present embodiment, the control unit 50 includes a computer system.

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

An operating system (OS) for controlling the computer system is attached to the memory unit of the control unit 50. In the memory unit of the control unit 50, the arithmetic processing unit controls the respective units of the film manufacturing apparatus 1 to execute the processing for accurately transferring the film 100 to each unit of the film manufacturing apparatus 1. Various information including a program 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 performs various processes required for control of each unit of the film manufacturing apparatus 1.

The memory department includes RAM (Random Access Memory) Semiconductor memory such as ROM, Read Only Memory, or an external memory device such as a hard disk, a CD-ROM reading device, or a disk-type memory medium. The memory unit is functionally set to memorize a memory area of the program software in which the film manufacturing unit 10, the defect inspection unit 20, the recording unit 30, and the film transport unit 40 are controlled, and various other memory areas.

The recording unit 30 is disposed on the downstream side in the transport direction of the defect inspecting unit 20 in the first film transport path 40A or the second film transport path 40B of the transport film 100. The recording unit 30 records the defect information on the defect detected by the defect inspection unit 20 on one surface 100b of the film 100 (the surface on the side where the first protective film 100B is bonded) or the other surface 100c. The surface on the side of the second protective film 100C). The defect information contains information about the location or type of the defect.

The recording unit 30 records the defect information on the film 100 at a predetermined timing after performing the defect inspection by the defect inspection unit 20. The timing at which recording is performed by the recording unit 30 depends on the transport distance of the film 100 from the defect inspection unit 20 to the recording unit 30.

For example, a rotary encoder that measures the conveyance amount of the film 100 on the conveyance path of the film 100 controls the control unit 50 when the conveyance amount of the film 100 (the number of pulses counted by the rotary encoder) reaches a predetermined value. The recording unit 30 records the defect information on the film 100.

The recording unit 30 records, for example, defect information on the surface (one surface 100b and the other surface 100c) of the film 100 in the form of an identification code (a primary bar code, a secondary bar code, a QR code (registered trademark), or the like). The identification code includes, for example, information indicating a position where the defect detected by the defect inspection unit 20 exists at a distance from the position where the barcode is attached along the film width direction (information about the position of the defect) . The identification code may also contain information about the type of defect detected.

The recording unit 30 may also add a defect-like size to the defect portion of the film 100. A dot, line or frame-like mark whereby the position of the defect is directly displayed (marked) on the surface of the film 100. At this time, it is also possible to display a mark or a pattern showing the type of the defect at the defective portion together with the aforementioned mark, thereby recording information on the kind of the result.

Further, the recording unit 30 may have a configuration in which a label having the above-described label is attached to the surface of the film 100.

The film transport unit 40 includes a first transport roller unit 43, a second transport roller unit 45, and a film winding unit 44.

As shown in the first and second figures, the first transport roller unit 43 is in the case where the defect information is recorded on one surface (first surface) 100b of the film 100 by the recording unit 30 (first mode), and on the other side. In the case where the (second surface) 100c records the defect information (the second mode), the film 100 is wound. In other words, when the first transport roller unit 43 selects one of the first film transport path 40A and the second film transport path 40B, the film transport unit 40 also winds the film 100. In other words, the first transport roller unit 43 is used in combination with the second transport roller unit 45, which will be described later, in the first film transport path 40A and the second film transport path 40B.

The second transport roller unit 45 records defect information (first mode) on one surface (first surface) 100b of the film 100 by the recording unit 30, and records defect information on the other surface (second surface) 100c. In any of the cases (the second mode), the film 100 is wound. In other words, the second transport roller unit 45 switches between the path between the first film transport path 40A and the second film transport path 40B in the film transport unit 40, and changes the winding method of the film 100. The second transport roller unit 45 is not used in the first film transport path 40A and the second film transport path 40B.

In the present embodiment, the second transport roller unit 45 includes one recording roller portion 41 and the other surface recording roller portion 42.

The recording roller unit 41 is used to wind the film 100 when the defect information is recorded on one surface 100b of the film 100 by the recording unit 30. In other words, the recording roller unit 41 is used to wind the film 100 when the first film transport path 40A is selected.

On the other hand, the other-side recording roller unit 42 is as shown in the second figure, and when the defect information is recorded on the other surface 100c of the film 100 by the recording unit 30, the film 100 is wound. In other words, the other-side recording roller unit 42 winds up the film 100 when the film transport unit 40 selects the second film transport path 40B.

In the present embodiment, the recording roller unit 41 is composed of a plurality of (two in the present embodiment) rollers 41a. In the first figure, the direction of rotation of the roller 41a is indicated by an arrow lined along the outer circumference of each roller 41a.

The roller 41a may be constituted by a passive roller that is rotated by the conveying force of the film 100, or may be constituted by a driving roller that imparts a conveying force to the film 100, or may be formed by mixing. However, in the one-side recording roller portion 41, the number of the rollers 41a may have one or three or more rollers 41a, and is not limited to the above two.

In the present embodiment, the other surface recording roller portion 42 is composed of one roller 42a. In the first figure, the direction of rotation of the roller 42a is indicated by an arrow lined along the outer circumference of the roller 42a.

The roller 42a may be constituted by a passive roller that is rotated by the conveying force of the film 100, or may be constituted by a driving roller that imparts a conveying force to the film 100, or may be formed by mixing. However, in the other surface recording roller portion 42, the number of the rollers 42a may have a plurality of rollers 42a, and is not limited to one.

The first transport roller portion 43 is composed of a front portion 43A, a middle portion 43B, and a rear portion. The part 43C is constituted. The front stage portion 43A, the middle portion portion 43B, and the rear portion portion 43C are each composed of a plurality of rollers. For example, the front portion 43A is composed of a plurality of (three in the present embodiment) rollers 43a, and the intermediate portion 43B is composed of a plurality of (three in the present embodiment) rollers 43b, and the rear portion 43C is composed of a plurality of rollers 43b. (four in the present embodiment) is constituted by a roller 43c.

The rollers 43a, 43b, and 43c may be formed of a passive roller that is rotated by the conveying force of the film 100, or may be composed of a driving roller that imparts a conveying force to the film 100, or may be mixed. And so on. Further, in the front stage portion 43A, the intermediate portion 43B, and the rear portion 43C, the number of the rollers 43a, 43b, and 43c can be appropriately changed, and is not limited to the above.

In the first and second figures, the direction of rotation of the rollers 43a, 43b, 43c is indicated by arrows along the outer circumference of each of the rollers 43a, 43b, 43c. Further, in the first and second figures, the rollers 43b constituting the intermediate portion 43B are referred to as rollers 43b1, 43b2, and 43b3 in the order in which the upper side of the drawing is disposed toward the lower side for the sake of convenience. For the sake of convenience, the rollers 43a constituting the front portion 43A are referred to as rollers 43a1, 43a2, and 43a3 in the order in which the upstream side of the transfer direction of the image film 100 is disposed toward the downstream side.

Here, a case where the operator selects the first film transport path 40A will be described.

At this time, as shown in the first figure, the film 100 pulled out by the film manufacturing unit 10 faces the downstream side from the upstream side in the conveyance direction, and the roller portion 41 for recording on the front side portion 43A (roller 43a). The roller 41a), the intermediate portion 43B (roller 43b), and the rear portion 43C (roller 43c) are wound in this order.

In the first film transport path 40A, the film 100 is wound up along the common inscribed line direction of the rollers 43a2 and 43a3 constituting the front stage portion 43A, and then wound upward via the rollers 43a3, thereby being wound around The roller portion 41 is recorded on one side.

The rollers 43b1, 43b2, and 43b3 of the intermediate portion 43B are wound by the film 100 of the recording roller portion 41 in this order. At this time, each of the rollers 43b1, 43b2, and 43b3 rotates counterclockwise as shown in the first figure, and only the roller 43a2 rotates clockwise among the front portion 43A, and the rollers 43a1, 43a3 rotate counterclockwise, respectively. .

When the first film transport path 40A is selected as described above, the film 100 passes through the recording unit 30 so as to pass downward from the upper side in the vertical direction by the roller portion 41 for recording. At this time, the film 100 is conveyed so that the one side 100b faces the recording part 30. Therefore, the recording unit 30 can record the defect information on one surface 100b of the film 100 conveyed through the first film transport path 40A.

The film 100 passing through the roller 43b3 of the intermediate portion 43B is folded back upward in the vertical direction, and then wound up in the film winding portion 44 via the rear portion 43C (roller 43c).

Next, a case where the operator selects the second film transport path 40B will be described.

At this time, as shown in the second figure, the film 100 pulled out by the film manufacturing unit 10 has the front end portion 43A (roller 43a) and the other surface recording roller portion 42 from the upstream side in the conveyance direction toward the downstream side. The roller (42a), the intermediate portion 43B (roller 43b), and the rear portion 43C (roller 43c) are wound in this order.

The film 100 is wound up along the common tangential direction of the rollers 43a2 and 43a3 constituting the front stage portion 43A, and then wound downward via the rollers 43a3, thereby being wound around the other surface recording roller portion 42. As shown in the second figure, only the roller 43a1 in the front stage portion 43A is rotated counterclockwise, and the rollers 43a2, 43a3 are respectively rotated clockwise.

The rollers 45b3, 43b2, and 43b1 of the intermediate portion 43B are wound around the film 100 of the other surface recording roller portion 42 in this order. At this time, as shown in the second figure, the rollers 43b1, 43b2 are rotated clockwise, and the rollers 43b3 are rotated counterclockwise.

When the second film transport path 40B is selected as described above, the film 100 passes through the recording unit 30 so as to pass upward from the vertical direction downward through the other surface recording roller portion 42. At this time, the film 100 is conveyed so that the other surface 100c faces the recording unit 30. Therefore, the recording unit 30 can record the defect information on the other surface 100c of the film 100 conveyed through the second film transport path 40B.

The film 100 passing through the roller 43b1 of the intermediate portion 43B is wound up in the film winding portion 44 via the rear portion 43C (roller 43c).

As described above, in the present embodiment, when the first film transport path 40A is selected and the second film transport path 40B is selected, part of the film transport path in the first transport roller unit 43 is selected. The conveying direction of the film 100 is switched.

In other words, the first transport roller unit 43 is in the case where the second film transport path 40B is selected and the first film transport path 40A is selected, and among the rollers 43a3 and the middle portion 43B in the front portion 43A. The rotation directions of the rollers 43b1, 43b2 are switched. In the case where the rotation directions of the rollers 43a3, 43b1, and 43b2 are switched, for example, when the rollers are constituted by the passive rollers, only the film winding unit 44 may be driven. On the other hand, for example, when the rollers are constituted by the active rollers, the rollers are rotated in accordance with the selection of the first and second film transport paths 40A and 40B. The rotation direction of the rotation drive unit (not shown) may be sufficient.

In the present embodiment, the film transport unit 40 has one side in which the distance between the defect inspection unit 20 and the recording unit 30 is equal to each other in the first film transport path 40A and the second film transport path 40B. The recording roller unit 41, the other surface recording roller unit 42, and the first conveying roller unit 43 are provided. In other words, the arrangement positions between the rollers 41a, 42a, 43a, 43b, and 43c constituting the one-side recording roller unit 41, the other-side recording roller unit 42, and the first conveying roller unit 43 are The method of spacing and the like to satisfy the above conditions is optimized.

Therefore, when the defect information is recorded on the one surface 100b in the first film transport path 40A and the defect information is recorded on the other surface 100c in the second film transport path 40B, the film transport unit 40 can be performed by the defect inspection unit 20 The time until the recording of the defect information by the recording unit 30 after the defect inspection (the timing at which the recording of the defect information by the recording unit 30) is the same. Therefore, the program for recording the timing of the recording by the recording unit 30 can be eliminated as the first film transport path 40A and the second film transport path 40B are switched. Therefore, the timing at which the predetermined position of the film 100 in which the defect information is detected by the defect inspection unit 20 reaches the recording unit 30 can be accurately recorded at the predetermined position.

The third drawing shows a schematic configuration of the film manufacturing unit 10. As shown in the third figure, the film manufacturing unit 10 is manufactured by laminating the protective film (surface protective film) 100B and 100C on the film substrate 100A to produce the film 100 described above. The film substrate 100A and the protective films 100B and 100C may be flexible tape films, and the material or configuration thereof is not particularly limited. Hereinafter, the protective films 100B and 100C may be referred to as a first protective film 100B and a second protective film 100C, respectively.

As shown in the third figure, 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, the third line 13, and the fifth line 15 constitute a transport line of the first protective film 100B. The transport line of the second protective film 100C is formed by the fourth line 14 and the fifth line 15. Further, the first line 11, the third line 13, and the fifth line 15 constitute a conveyance line of the film substrate 100A.

Each of the wires 11, 12, 13, 14, and 15 is provided with a plurality of rollers for forming a transport path of the film substrate 100A and the protective films 100B and 100C (for example, in the present embodiment, the guide roller 31 and the chuck roller 33) , 34, 35, 36).

The first line 11 is produced by transporting the film substrate 100A. The film substrate 100A is a polarizing film in the case of the present embodiment, and the film substrate 100A is not limited thereto. In the first line 11, a PVA (Polyvinyl Alcohol) film which is a base material of a polarizer is subjected to a dyeing treatment, a bridging treatment, an elongation treatment, and the like.

Thereafter, the film substrate 100A is produced by laminating a polarizer protective film made of TAC (Triacetyl cellulose, cellulose triacetate) or the like on both surfaces thereof. The film substrate 100A is not limited to the polarizing film, and may be another film such as a retardation film, a light diffusion film, a light reflection film, a lens film, a conductive film, an insulating film, or a photosensitive film.

In the second line 12, the first protective film 100B is unwound from the first material roll R1 and transported. In the case of the present embodiment, the first protective film 100B is a PET (polyethylene terephthalate) film, but the first protective film 100B is not limited thereto.

The third line 13 has a pair of grip rollers 33 and 34 which are disposed to be parallel to each other in the axial direction. A predetermined gap is formed between the pair of holding rollers 33 and 34, and the gap is a bonding position between the film substrate 100A and the first protective film 100B. The film substrate 100A and the first protective film 100B are superposed on each other and introduced into the gap. The film substrate 100A and the first protective film 100B are sent to the downstream side while being pinched by the nip rollers 33 and 34. Thereby, the first protective film 100B is bonded to one surface of the film substrate 100A.

In the fourth line 14 , the second protective film 100C is unwound from the second material roll R2 and transported. In the case of the present embodiment, the second protective film 100C is a PET (polyethylene terephthalate) film, but the second protective film 100C is not limited thereto.

The fifth line 15 is bonded to the other surface (the surface opposite to the surface on which the first protective film 100B is bonded) on the other surface of the film substrate 100A, and is bonded to the second protective film 100C. On the film substrate 100A The first protective film 100B and the second protective film 100C are bonded to one surface and the other surface, whereby the film 100 is produced.

The fifth line 15 has a pair of holding rollers 35 and 36 which are disposed to be parallel to each other in the axial direction. A predetermined gap is formed between the pair of holding rollers 35 and 36, and the gap is the bonding position between the film substrate 100A and the second protective film 100C. The film substrate 100A and the second protective film 100C are superposed on each other and introduced into the gap. The film base material 100A and the second protective film 100C are sent to the downstream side while being pinched by the grip rollers 35 and 36. Thereby, the 2nd protective film 100C is bonded to the other surface of the film base material 100A.

As described above, in the film manufacturing unit 10, the film 100 can be produced by bonding the first protective film 100B and the second protective film 100C to both surfaces of the film substrate 100A.

As described above, according to the film manufacturing apparatus 1 of the present embodiment, the operator can change the first film transport path 40A or the second film transport path 40B as the transport path of the film 100, and the both sides of the film 100 (one side 100b and The other side 100c) performs defect inspection, and separately records defect information on both sides of the inspection.

Therefore, since the defect information can be recorded on both sides of the film 100 in only one recording unit 30, it is possible to suppress the installation space of the apparatus as compared with the case where two recording units are provided for the double-sided recording as in the conventional case. The cost is checked for defects in the film. Further, the film 100 on which defective information is recorded can be manufactured at low cost.

The preferred embodiment of the present embodiment will be described with reference to the drawings, but the present invention is not limited to this example, and it goes without saying. The shapes, combinations, and the like of the respective constituent members shown in the above examples are merely examples, and various modifications can be made according to design requirements and the like without departing from the gist of the invention. For example, in the above-described embodiment, the case where the series of defect inspection units 20 are disposed only on the downstream side of the film manufacturing unit 10 is taken as an example, but is not limited thereto, and may be A defect inspection unit is also provided in the middle of at least one of the first line 11, the second line 12, and the fourth line 14 of the film manufacturing unit 10. Thereby, the defect inspection in the film substrate 100A before the protective films 100B and 100C are bonded can be performed, and the precision of the defect inspection in the film 100 can be improved.

Further, in the above-described embodiment, the configuration of the film manufacturing apparatus 1 for inspecting the film 100 produced by the film manufacturing unit 10 in the defect inspection unit 5 is exemplified, but the defect inspection unit 5 can also be used as an inspection film manufacturing. The inspection device of the defect of the film produced other than the unit 10 functions as a single unit. At this time, the defect inspection of the film is performed by the film transfer unit 40 by the roll of the material to be inspected, and the film is conveyed to the recording unit 30, and after recording the predetermined defect information, the film is processed. The winding unit 44 performs winding and ends. As described above, after the raw material roll to be inspected is manufactured, it can be transported to another factory, and the defect inspection unit 5 can be used to perform defect inspection of the film in the other factory.

In the above-described embodiment, the case where the second transport roller unit 45 includes the one surface recording roller unit 41 and the other surface recording roller unit 42 is exemplified, but only one of them may be used. Composition. For example, the second transport roller unit 45 may be constituted by only one recording roller unit 41. At this time, the film 100 that has passed through the second film transport path 40B that records the defect on the other surface 100c is transported only by being wound around the first transport roller unit 43, and the defect is recorded on one side 100b. The film 100 of the first film transport path 40A is transported by being wound around the first transport roller portion 43 and the second transport roller portion 45 (one surface recording roller portion 41).

Alternatively, the second transport roller portion 45 may be constituted by only the other surface recording roller portion 42. At this time, the film 100 that has passed through the second film transport path 40B that records the defect on the other surface 100c is wound around the first transport roller portion 43 and the second transport roller portion 45 (the other surface of the transport roller) The sub-portion 42) performs the transport, and passes through the first film transport path 40A that records the defect on the one surface 100b. The film 100 is conveyed by being wound only on the first conveying roller unit 43.

1‧‧‧ film manufacturing equipment

5‧‧‧ Defect inspection unit (defect inspection system)

10‧‧‧Film manufacturing unit

20‧‧‧Defect Inspection Department

21a, 22a‧‧‧Lighting Department

21b, 22b‧‧‧Photodetector

30‧‧‧Record Department

40‧‧‧ Film Transport Department

40A‧‧‧1st film transport path

41‧‧‧One-side roller for recording (second transport roller)

41a‧‧‧Roller

42‧‧‧The other part of the recording roller (the second conveying roller)

42a‧‧‧Roller

43‧‧‧1st transport roller

43A‧‧‧The former section

43B‧‧ mid-section

43C‧‧‧The last section

43a‧‧‧Roller

43a1, 43a2, 43a3‧‧ ‧rollers

43b‧‧‧Roller

43b1, 43b2, 43b3‧‧ ‧rollers

43c‧‧‧Roller

44‧‧‧ Film Winding Department

45‧‧‧2nd transport roller

50‧‧‧Control Department

100‧‧‧ film

100b‧‧‧ one side (first side)

Claims (6)

A defect inspection system comprising: a film transport unit that transports a strip film; a defect inspection unit that performs defect inspection on the film conveyed by the film transport unit; and a recording unit that is formed in the film transport unit In the film transport path, the defect information related to the defect detected by the defect inspection unit is recorded on the downstream side of the defect inspection unit, wherein the film transport unit includes: the first transport roller The sub-section is respectively in a first mode in which the defect information is recorded on the first surface of the film by the recording unit, and a second mode in which the defect information is recorded on the second surface of the film by the recording unit, The film and the second transfer roller are wound around the film in either of the first mode and the second mode. In the defect inspection system according to the first aspect of the invention, the first conveying roller unit switches the conveying direction of the film in a part of the film conveying path in accordance with the switching between the first mode and the second mode. The defect inspection system according to the first or second aspect of the invention, wherein the film transport unit transports the film on the first film transport path in the first mode, and transports the second film in the second mode. The first transport roller unit and the first transport roller unit and the first membrane transport path and the second membrane transport path have the same distance between the defect inspection unit and the recording unit. 2 Transfer the roller. A defect inspection system according to any one of claims 1 to 3, wherein The recording unit is configured to record the defect information on the film wound around the first conveying roller unit. The defect inspection system according to any one of the first to fourth aspect, wherein the at least one of the first transport roller portion and the second transport roller portion includes a plurality of roller members. A film manufacturing apparatus comprising: a film manufacturing unit that manufactures a strip film; and a defect inspection unit that performs defect inspection on the film manufactured by the film manufacturing unit; The defect inspection system according to any one of the items 5, wherein the defect inspection unit is used.