KR20240003392A - Film surface inspection device - Google Patents

Abstract

The present invention relates to a film surface inspection device. More specifically, in order to automate the appearance inspection of laminated films used in touch panels of electronic products, defects are identified through machine vision technology by continuously scanning (photographing) a number of films. It relates to a film surface inspection device that detects.
According to an embodiment of the present invention, a scanning unit 1 that scans the surface of the film F to detect surface defects; a product supply unit (2) storing a plurality of films (F) in order to supply the films (F) to the scanning unit (1); a supply transfer unit (3) that transfers the film (F) from the product supply unit (2) to the scanning unit (1); a product discharge unit (4) that separates and stores defective products with defects detected by the scanning unit (1) and good products with no defects detected; And a discharge and transfer unit (5) that transfers the film (F) from the scan unit (1) to the product discharge unit (4), wherein the scan unit (1): through the supply transfer unit (3). Supply conveyor (11) for transporting the input film (F); A line scanner (12) that scans the film (F) transferred through the supply conveyor (11); An upper light (13) disposed above the point (S) where the film is scanned and illuminating the film (F); A lower light (14) disposed below the point (S) where the film is scanned and illuminating the film (F); And a discharge conveyor 15 that transfers the film (F) that has passed the line scanner 12; including a space between the supply conveyor 11 and the discharge conveyor 15 (the point at which the film is scanned (S) Provided is a film surface inspection device that detects surface defects of the film (F) by scanning the surface of the film (F) while irradiating light from the top and bottom of the film (F) passing through )).

Description

Film surface inspection device}

The present invention relates to a film surface inspection device. More specifically, in order to automate the appearance inspection of laminated films used in touch panels of electronic products, defects are identified through machine vision technology by continuously scanning (photographing) a number of films. It relates to a film surface inspection device that detects.

Films used to display button shapes on touch panels of electronic products are manufactured by stacking films of various materials.

At this time, if a defect occurs in an individual film being laminated or a part of the laminated finished product film, the film must be discarded, resulting in a large loss.

Currently, the visual inspection of films for defects is performed manually. More specifically, the appearance of defects such as impurities, protrusions, grooves, dents, and scratches on the surface of the film is identified by the human eye while shining a light on the film. An inspection is being performed.

Visual inspection by the human eye has many problems in terms of time, cost, and accuracy, so we want to automate it. In particular, technology to speed up inspection is needed to inspect a large number of films.

KR 10-2093949 B

The problem to be solved by the present invention is to provide a film surface inspection device that automatically and quickly inspects multiple films in succession in order to improve the limitations of the conventional film inspection device as described above.

In order to improve the limitations of the conventional film inspection device as described above, the present invention includes a scanning unit that scans the surface of the film to detect surface defects; a product supply unit that stores a plurality of films to supply films to the scanning unit; a supply transfer unit that transfers the film from the product supply unit to the scanning unit; a product discharge unit that separates and stores defective products with defects detected by the scanning unit and good products with no defects detected; and a discharge transfer unit that transfers the film from the scan unit to the product discharge unit, wherein the scan unit includes: a supply conveyor that transfers the film introduced through the supply transfer unit; A line scanner that scans the film transported through the supply conveyor; An upper light that is placed above the point where the film is scanned and illuminates the film; a lower light disposed below the point where the film is scanned and illuminating the film; and a discharge conveyor for transporting the film that has passed through the line scanner; including, irradiating light from the top and bottom of the film passing through the space between the supply conveyor and the discharge conveyor (point at which the film is scanned) to illuminate the surface of the film. Provides a film surface inspection device that detects surface defects of a film by scanning.

In addition, the supply conveyor includes: a supply conveyor belt having a predetermined length so that the film is seated and transported; A supply motor provided to transmit power to the supply conveyor belt; a first supply pulley fixed to and rotating on the rotation axis of the supply motor; A first supply belt connected to the first supply pulley; a second supply pulley that is connected to the first supply belt and rotates by receiving power from the first supply pulley, and is configured to be connected to two belts by forming a multi-stage structure of an input end and an output end; a supply conveyor shaft fixed to the second supply pulley and disposed in contact with the supply conveyor belt to operate the supply conveyor belt; a second supply belt connected to the second supply pulley; A third supply pulley is connected to the second supply belt and rotates by receiving power from the second supply pulley, and has a multi-stage structure of an input end and an output end, and a predetermined gear is formed at the output end; a first supply gear provided to mesh with the gear of the third supply pulley; a second supply gear meshed in multiple stages to receive power from the first supply gear; a supply roller fixed to the second supply gear and rotating; A pressure roller disposed on the upper part of the supply conveyor belt and pressing the film with a predetermined pressure so that the film is seated on the supply conveyor belt; A control lever connected to the pressure roller and controlling the pressure roller to contact the supply conveyor belt or to be spaced apart by a predetermined distance; a spring connected to one end of the control lever; And a pressure motor disposed opposite the spring based on the control lever; Including, the supply conveyor belt and the supply roller operate simultaneously according to the operation of the supply motor, and the pressure roller is supplied according to the operation of the pressure motor. It can be adjusted to contact the conveyor belt or to be spaced apart by a predetermined distance.

And, the supply conveyor includes: an ionizer disposed on one upper side of the supply conveyor to remove static electricity from the film before the film is introduced to the 'point where the film is scanned'; and a cleaner disposed on the upper part of the supply roller to contact the surface of the film that has passed through the ionizer to remove foreign substances attached to the surface of the film.

In addition, the product supply unit: a plurality of outline bars arranged along the circumferential surface of the film so that the film is stacked; a base plate to which the outline bar is fixed; a moving plate disposed on top of the base plate and having a film stacked on the upper surface; A first guide fixed to the moving plate and capable of being transported in an upward and downward direction; a first rail connected to the first guide and providing a path along which the first guide is transported in an upward and downward direction; and a first guide motor for transporting the first guide in an upward and downward direction, wherein the product discharge unit includes: a defective product stacking module for stacking and storing the defective products, and a product stacking module for stacking and storing the good products. A pair of good quality stacked modules may be arranged to face each other.

In addition, the supply and transfer unit includes: a second guide disposed on the upper part of the product supply unit to enable transfer in the left and right directions; a second rail connected to the second guide and providing a path along which the second guide is transported in the left and right directions; a second guide motor that moves the second guide in left and right directions; And a first adsorber disposed on one side of the second guide, adsorbing the film or putting down the adsorbed film; including, adsorbing the film in contact with the first adsorber and transferring it to the supply conveyor and then putting it down. In operation, the discharge and transfer unit includes: a third guide disposed on an upper portion of the product discharge unit to enable transfer in left and right directions; a third rail connected to the third guide and providing a path along which the third guide is transported in the left and right directions; a third guide motor that moves the third guide in left and right directions; a fourth guide disposed on one side of the third guide and capable of being transported in the forward and backward directions; a fourth rail connected to the fourth guide and providing a path along which the fourth guide is transported in the forward and backward directions; And a second adsorber disposed on one side of the fourth guide, adsorbing the film or putting down the adsorbed film; including, adsorbing the film in contact with the second adsorber and transporting it to the product discharge unit and then putting it down. It can work.

According to an embodiment of the present invention, defects in a film can be automatically detected using machine vision technology.

Additionally, by continuously feeding the film through a conveyor, a large amount of film can be inspected in a short period of time.

In addition, by operating the conveyor and supply roller with a single motor (actuator), the structure of the device is simplified, maintainability is improved, and the transfer speed of the film can be easily controlled.

In addition, by removing foreign substances such as dust from the surface of the film using a static electricity removal device (ionizer) and cleaner, it is possible to prevent foreign substances from being mistaken for defects.

In addition, by providing a structure in which films are stacked in large quantities and sequentially supplied to a conveyor one by one, a large quantity of films can be inspected.

1 is a perspective view showing a film surface inspection device according to an embodiment of the present invention.
Figure 2 is a perspective view showing the scanning unit of the film surface inspection device according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing the scanning unit of the film surface inspection device according to an embodiment of the present invention.
Figure 4 is a perspective view showing the supply conveyor of the film surface inspection device according to an embodiment of the present invention.
Figure 5 is a perspective view showing the product supply part of the film surface inspection device according to an embodiment of the present invention.
Figure 6 is a perspective view showing the product discharge portion of the film surface inspection device according to an embodiment of the present invention.
Figure 7 is a perspective view showing the supply and transfer unit of the film surface inspection device according to an embodiment of the present invention.
Figure 8 is a perspective view showing the discharge and transport part of the film surface inspection device according to an embodiment of the present invention.

Hereinafter, various embodiments of this document are described with reference to the attached drawings. However, this is not intended to limit the technology described in this document to specific embodiments, and should be understood to include various modifications, equivalents, and/or alternatives to the embodiments of this document. . In connection with the description of the drawings, similar reference numbers may be used for similar components.

In this document, expressions such as "comprises" or "may include" refer to the presence of the corresponding feature (e.g., a numerical value, function, operation, or component, etc.) and do not exclude the presence of additional features. No.

In this document, expressions such as “one or more of A or/and B” may include all possible combinations of the items listed together. For example, “A or B,” “one or more of A and B” means (1) includes at least one A, (2) includes at least one B, or (3) includes at least one A and at least It can refer to all cases containing all of one B.

Expressions such as “first,” “second,” etc. used in this document may modify various components regardless of order and/or importance, and are only used to distinguish one component from another component. The components are not limited. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, a first component may be renamed a second component without departing from the scope of rights described in this document, and similarly, the second component may also be renamed to the first component.

A component (e.g., a first component) is “operatively or communicatively coupled with/to” or “connected to” another component (e.g., a second component). When "connected to" is mentioned, it should be understood that any component may be directly connected to the other component or may be connected through another component (eg, a third component).

Terms used in this document are merely used to describe specific embodiments and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions, unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field described in this document. Among the terms used in this document, terms defined in general dictionaries may be interpreted to have the same or similar meaning as the meaning they have in the context of related technology, and unless clearly defined in this document, have an ideal or excessively formal meaning. It is not interpreted as In some cases, even terms defined in this document cannot be interpreted to exclude embodiments of this document.

Of course, various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims of the present invention, and these modifications do not reflect the technical idea or the technical spirit of the present invention. It should not be understood in isolation from the perspective.

Terms such as “left and right, front and rear, top and bottom, top and bottom” used in the description of the invention are defined based on the drawings, and the shape and location of each component are not limited by these terms.

In the terms used in this specification, singular expressions should be understood to include plural expressions, unless clearly interpreted differently from the context, and terms such as “including” refer to the described features, numbers, steps, operations, and components. , it means the existence of parts or a combination thereof, but should be understood as not excluding the possibility of the presence or addition of one or more other features, numbers, step operation components, parts, or combinations thereof.

Components such as 'motor', which will be described later, may include equivalent components such as electric motors as well as components that generate a certain amount of power or rotational force, such as an actuator.

According to an embodiment of the present invention, a scanning unit 1 that scans the surface of the film F to detect surface defects; a product supply unit (2) storing a plurality of films (F) in order to supply the films (F) to the scanning unit (1); a supply transfer unit (3) that transfers the film (F) from the product supply unit (2) to the scanning unit (1); a product discharge unit (4) that separates and stores defective products with defects detected by the scanning unit (1) and good products with no defects detected; And a discharge and transfer unit (5) that transfers the film (F) from the scan unit (1) to the product discharge unit (4), wherein the scan unit (1): through the supply transfer unit (3). Supply conveyor (11) for transporting the input film (F); A line scanner (12) that scans the film (F) transported through the supply conveyor (11); An upper light (13) disposed above the point (S) where the film is scanned and illuminating the film (F); A lower light (14) disposed below the point (S) where the film is scanned and illuminating the film (F); And a discharge conveyor 15 that transfers the film (F) that has passed the line scanner 12; including a space between the supply conveyor 11 and the discharge conveyor 15 (the point at which the film is scanned (S) Provided is a film surface inspection device that detects surface defects of the film (F) by scanning the surface of the film (F) while irradiating light from the top and bottom of the film (F) passing through )).

The line scanner 12 photographs the surface of the film F using an image capture sensor/module such as a camera. When the film F is advanced (to the right in Figure 1) while the line scanner 12 is fixed, the entire film F from one end to the other is scanned and stored as an image.

Machine vision technology is applied to stored images to detect defects such as impurities, protrusions, grooves, dents, and scratches. Here, impurities are not substances that can be removed by the cleaner 1117 according to an embodiment of the present invention, such as simple dust, but substances that are mixed/penetrated into the inside of the film (F) and cause defects in the product ( Simple dust, etc. can be removed, so it is not judged as defective).

The upper light 13 and lower light 14 can perform scanning in various lighting situations by operating both at the same time or by operating only one of them.

The upper light 13 or/and lower light 14 is not simply a unidirectional light that is emitted in a vertical direction, but is illuminated in the forward and backward direction (direction penetrating the ground) or left and right direction (direction of conveyor movement) based on FIG. 1. A plurality of lights, respectively arranged, may be configured to be illuminated simultaneously or alternately. According to this configuration, more diverse types of defects can be detected by illumination from the side direction.

In Figures 1 and 2, the space where the upper lighting 13 is illuminated, rather than the upper lighting 13 device itself, is shown as a dotted line.

The supply conveyor 11 can transport the film F at predetermined lengths in a separate operation. For example, the defect detection rate can be improved by transporting the film (F) for about 3CM, photographing the surface for each of the front, rear, left, and right directions of illumination, and then transporting the film (F) for about 3CM again and photographing the surface for each of the front, rear, left, and right directions of illumination. You can. However, this control method increases the inspection time per film (F), so it is preferable for sample inspection rather than full inspection.

In addition, the supply conveyor 11 includes: a supply conveyor belt 1101 having a predetermined length so that the film F is seated and transported; A supply motor 1102 provided to transmit power to the supply conveyor belt 1101; A first supply pulley (1103) fixed to and rotating on the rotation axis of the supply motor (1102); A first supply belt (1104) connected to the first supply pulley (1103); A second supply pulley (1105) is connected to the first supply belt (1104) and rotates by receiving power from the first supply pulley (1103), and is configured to be connected to two belts by forming a multi-stage structure of the input end and the output end. ; A supply conveyor shaft 1106 fixed to the second supply pulley 1105 and disposed in contact with the supply conveyor belt 1101 to operate the supply conveyor belt 1101; A second supply belt (1107) connected to the second supply pulley (1105); A third supply pulley (1108) is connected to the second supply belt (1107) and rotates by receiving power from the second supply pulley (1105), and has a multi-stage structure of the input end and the output end, and a predetermined gear is formed at the output end. ; A first supply gear 1109 provided to mesh with the gear of the third supply pulley 1108; a second supply gear (1110) meshed in multiple stages to receive power from the first supply gear (1109); A supply roller 1111 fixed to and rotating on the second supply gear 1110; A pressure roller 1112 disposed on the upper part of the supply conveyor belt 1101 and pressing the film F with a predetermined pressure so that the film F is seated on the supply conveyor belt 1101; A control lever 1113 connected to the pressure roller 1112 and controlling the pressure roller 1112 to contact the supply conveyor belt 1101 or to be spaced apart by a predetermined distance; A spring 1114 connected to one end of the control lever 1113; And a pressurizing motor 1115 disposed opposite the spring 1114 based on the control lever 1113; Including, according to the operation of the supply motor 1102, the supply conveyor belt 1101 and the supply roller ( 1111) operates simultaneously, and the pressure roller 1112 can be adjusted to contact the supply conveyor belt 1101 or be spaced apart by a predetermined distance according to the operation of the pressure motor 1115.

Hereinafter, the structure of the supply conveyor 11 will be described with reference to FIGS. 3 and 4.

As shown in FIG. 4, the first supply pulley 1103, which is fixed and rotated on the rotation axis of the supply motor 1102, transmits rotational force to the second supply pulley 1105 through the first supply belt 1104. The supply conveyor shaft 1106 is fixed to the second supply pulley 1105, and the supply conveyor shaft 1106 rotates simultaneously with the rotation of the second supply pulley 1105, and the supply conveyor shaft 1106 is in close contact with the supply conveyor shaft 1106. The supply conveyor belt 1101 operates.

Meanwhile, the second supply pulley 1105 is provided with grooves formed in multiple stages so that two belts can be seated, with the first supply belt 1104 in one groove and the second supply belt 1107 in the other groove. ) is settled.

As the second supply pulley 1105 rotates, the third supply pulley 1108, which receives power through the second supply belt 1107, rotates. The third supply pulley 1108 is formed in multiple stages so that a belt is seated on one side and a gear can be meshed on the other side, and a groove is provided on one side and gear teeth are formed on the other side.

The first supply gear 1109, which is arranged to mesh with the gear of the third supply pulley 1108, is also meshed with the second supply gear 1110 at the top based on the ground on which the device is installed. Accordingly, power is transmitted from the third supply pulley 1108 to the first supply gear 1109 to the second supply gear 1110.

Meanwhile, multiple sets of the first supply gear 1109 and the second supply gear 1110 may be arranged. Figure 4 shows an embodiment in which three sets of first supply gear 1109 and second supply gear 1110 are arranged. At this time, one set of first supply gears 1109 receives power from the second supply gear 1110 of another set.

A pressure roller 1112 is arranged to press the film F so that the film F seated (placed) on the supply conveyor belt 1101 can be transported in close contact with the supply conveyor belt 1101. When a new film (F) is introduced, the pressure motor (1115) can be operated to compress the spring (1114). At this time, the control lever 1113 rotates around a predetermined axis to lift the pressure roller 1112 so that the film F and the pressure roller 1112 do not interfere with each other. The operation structure of the pressure roller 1112 can be equally applied to the discharge conveyor belt 1501, and since it is a range that can be easily implemented with reference to the above description, redundant description will be omitted.

The discharge conveyor 15 may include: a discharge conveyor belt 1501, a discharge conveyor shaft 1503, and a discharge motor 1502. Since the discharge conveyor 15 can be easily implemented by referring to the drawings and the structure and description of the supply conveyor 11, redundant description will be omitted.

And, the supply conveyor 11 is: disposed on one side of the upper part of the supply conveyor 11 so that the static electricity of the film (F) is removed before the film (F) is input to the 'point where the film is scanned (S)'. Ionizer (1116); and a cleaner 1117 disposed on the upper part of the supply roller 1111 to contact the surface of the film F that has passed through the ionizer 1116 to remove foreign substances attached to the surface of the film F. may include.

The film (F) from which static electricity has been removed as it passes through the ionizer 1116 continues to be transported along the supply conveyor belt 1101, and passes between the supply roller 1111 and the cleaner 1117 to remove foreign substances such as dust. It passes through the ‘point (S) where the film is scanned’ in a state where it has been removed by (1117).

The cleaner 1117 is made of a predetermined charged member or a member with a predetermined adhesive force, and may be formed in a roller shape.

In addition, the product supply unit 2 includes: a plurality of outline bars M1 (Out Line Bar) disposed along the circumferential surface of the film F so that the film F is stacked; a base plate (M2) on which the outline bar (M1) is fixed; A moving plate (M3) disposed on top of the base plate (M2) and having a film (F) laminated on the upper surface; A first guide (M4) fixed to the moving plate (M3) and capable of being transported in the vertical direction; A first rail (M5) connected to the first guide (M4) and providing a path along which the first guide (M4) is transported in the vertical direction; and a first guide motor (M6) that transports the first guide (M4) in the vertical direction, wherein the product discharge unit (4): stacks and stores the defective products. A pair of a defective product stacking module (MN) and a good product stacking module (MG) that stacks and stores the good products may be arranged to face each other.

As described above, one product stacking module (M) configured in the same form may be provided in the product supply unit 2 and two (defective product stacking module (MN) and good product stacking module (MG)) in the product discharge unit 4. Uninspected films (F) are stacked and supplied to the product supply unit (2), and inspected films (F) are divided into good and defective products and stacked in the product discharge unit (4).

After one film (F) passes the 'film scanning point (S)', the machine vision operation device determines whether the film (F) is good or not and simultaneously sends the film (F) to the discharge conveyor (15). It can be transported along, and the film (F) that arrives at the end of the discharge conveyor 15 is stacked at the position of a good product or a defective product according to the judgment of the machine vision operation device. Through this continuous operation, the time required to inspect multiple films (F) can be reduced.

In addition, the supply and transfer unit (3) includes: a second guide (31) disposed on the upper part of the product supply unit (2) to enable transfer in the left and right directions; A second rail 32 connected to the second guide 31 and providing a path for transferring the second guide 31 in the left and right directions; a second guide motor (33) that transports the second guide (31) in the left and right directions; And a first adsorber 34 disposed on one side of the second guide 31 and adsorbing the film F or putting down the adsorbed film F. It operates to adsorb the film (F) in contact, transport it to the supply conveyor (11) and then place it down, and the discharge and transfer unit (5) is: disposed at the upper part of the product discharge unit (4) and can be transferred in the left and right directions. a third guide (51) provided to do so; A third rail 52 connected to the third guide 51 and providing a path for transferring the third guide 51 in the left and right directions; a third guide motor 53 that transports the third guide 51 in the left and right directions; a fourth guide (54) disposed on one side of the third guide (51) and capable of being transported in the forward and backward directions; a fourth rail (55) connected to the fourth guide (54) and providing a path for the fourth guide (54) to be transported in the forward and backward directions; And a second absorber 56 disposed on one side of the fourth guide 54 and adsorbing the film (F) or putting down the adsorbed film (F). It can be operated to adsorb the film (F) in contact, transfer it to the product discharge unit (4), and then place it down.

The first guide (M4) can be transferred upward when supplying a new film (F) to the supply conveyor (11). By the transfer of the first guide (M4), the film (F) located at the top among the films (F) laminated on the moving plate (M3) is in close contact with the first absorber (34), and the operation of the first absorber (34) Accordingly, one sheet of film (F) is attached and fixed to the first absorber (34). Afterwards, when the first guide (M4) is moved downward again, only one film (F) is fixed in the state of being adsorbed on the first absorber (34). Afterwards, the second guide 31 is transferred until the adsorbed film (F) is located above the supply conveyor belt 1101, and then the adsorption operation of the first adsorber 34 is stopped to supply the film (F). It is dropped onto the conveyor belt (1101).

In the same way, the inspected film (F) is adsorbed by the second adsorber 56 and transported in the right direction, and then transported in the forward and backward directions depending on whether it is a good product or not, and then falls to be classified as a good product or a defective product and stacked.

In order to transport the fourth guide 54 in the forward and backward directions, a power generating means such as a motor is necessary, but since the content overlaps with the above description, detailed description will be omitted.

F: film
S: Point where the film is scanned
1: Scan section
11: Supply conveyor
1101: Supply conveyor belt
1102: Supply motor
1103: First supply pulley
1104: 1st supply belt
1105: 2nd supply pulley
1106: Supply conveyor axis
1107: 2nd supply belt
1108: Third supply pulley
1109: 1st supply gear
1110: 2nd supply gear
1111: Supply roller
1112: Pressure roller
1113: Control lever
1114: spring
1115: Pressure motor
1116: Ionizer
1117 : Cleaner
12: Line scanner
13: Upper lighting
14: Lower lighting
15: Discharge conveyor
1501: Discharge conveyor belt
1502: Discharge motor
1503: Discharge conveyor axis
2: Product supply department
M1: Outline bar
M2: Base plate
M3: Moving plate
M4: 1st guide
M5: 1st rail
M6: 1st guide motor
M: Product stacking module
3: Supply and transfer department
31: 2nd guide
32: 2nd rail
33: 2nd guide motor
34: first adsorber
4: Product discharge section
MN: Defective product stacked module
MG: Good quality laminated module
5: Discharge transfer unit
51: Third guide
52: Third rail
53: Third guide motor
54: 4th guide
55: 4th rail
56: second adsorber

Claims (5)

A scanning unit that scans the surface to detect surface defects of the film;
a product supply unit that stores a plurality of films to supply films to the scanning unit;
a supply transfer unit that transfers the film from the product supply unit to the scanning unit;
a product discharge unit that separates and stores defective products with defects detected by the scanning unit and good products with no defects detected; and
It includes a discharge transfer unit that transfers the film from the scanning unit to the product discharge unit,
The scanning unit:
A supply conveyor that transports the film introduced through the supply transfer unit;
A line scanner that scans the film transported through the supply conveyor;
An upper light that is placed above the point where the film is scanned and illuminates the film;
a lower light disposed below the point where the film is scanned and illuminating the film; and
Including a discharge conveyor that transports the film that has passed the line scanner,
A film surface inspection device that detects surface defects in the film by scanning the surface of the film while irradiating light from the top and bottom of the film passing through the space between the supply conveyor and the discharge conveyor (the point where the film is scanned). In claim 1,
The supply conveyor is:
a supply conveyor belt having a predetermined length so that the film is seated and transported;
A supply motor provided to transmit power to the supply conveyor belt;
a first supply pulley fixed to and rotating on the rotation axis of the supply motor;
A first supply belt connected to the first supply pulley;
a second supply pulley that is connected to the first supply belt and rotates by receiving power from the first supply pulley, and is configured to be connected to two belts by forming a multi-stage structure of an input end and an output end;
a supply conveyor shaft fixed to the second supply pulley and disposed in contact with the supply conveyor belt to operate the supply conveyor belt;
a second supply belt connected to the second supply pulley;
A third supply pulley is connected to the second supply belt and rotates by receiving power from the second supply pulley, and has a multi-stage structure of an input end and an output end, and a predetermined gear is formed at the output end;
a first supply gear provided to mesh with the gear of the third supply pulley;
a second supply gear meshed in multiple stages to receive power from the first supply gear;
a supply roller fixed to the second supply gear and rotating;
A pressure roller disposed on the upper part of the supply conveyor belt and pressing the film with a predetermined pressure so that the film is seated on the supply conveyor belt;
A control lever connected to the pressure roller and controlling the pressure roller to contact the supply conveyor belt or to be spaced apart by a predetermined distance;
a spring connected to one end of the control lever; and
Including a pressurizing motor disposed opposite the spring based on the control lever,
According to the operation of the supply motor, the supply conveyor belt and supply roller operate simultaneously,
A film surface inspection device in which the pressure roller is adjusted so that it contacts the supply conveyor belt or is spaced apart by a predetermined distance according to the operation of the pressure motor. In claim 1,
The supply conveyor is:
An ionizer disposed on one side of the upper part of the supply conveyor to remove static electricity from the film before it is introduced to the 'film scanning point'; and
A film surface inspection device comprising: a cleaner disposed on the upper part of the supply roller to contact the surface of the film that has passed through the ionizer to remove foreign substances attached to the surface of the film; In claim 1,
The product supply department:
A plurality of outline bars arranged along the circumferential surface of the film so that the film is stacked;
a base plate to which the outline bar is fixed;
a moving plate disposed on top of the base plate and having a film stacked on the upper surface;
A first guide fixed to the moving plate and capable of being transported in an upward and downward direction;
a first rail connected to the first guide and providing a path along which the first guide is transported in an upward and downward direction; and
It is composed of a product stacking module including a first guide motor that transports the first guide in an upward and downward direction,
The product discharge section:
A defective product stacking module for stacking and storing the defective products;
A film surface inspection device in which a pair of good product stacking modules for stacking and storing the good product are arranged to face each other. In claim 1,
The supply and transfer department:
a second guide disposed on the upper part of the product supply unit to enable transfer in left and right directions;
a second rail connected to the second guide and providing a path along which the second guide is transported in the left and right directions;
a second guide motor that moves the second guide in left and right directions; and
Including a first adsorber disposed on one side of the second guide and adsorbing the film or putting down the adsorbed film,
Operates to adsorb the film in contact with the first adsorber, transport it to the supply conveyor, and then place it down,
The discharge transfer unit:
A third guide disposed on the upper part of the product discharge unit to enable transfer in left and right directions;
a third rail connected to the third guide and providing a path along which the third guide is transported in the left and right directions;
a third guide motor that moves the third guide in left and right directions;
a fourth guide disposed on one side of the third guide and capable of being transported in the forward and backward directions;
a fourth rail connected to the fourth guide and providing a path along which the fourth guide is transported in the forward and backward directions; and
Including a second adsorber disposed on one side of the fourth guide and adsorbing the film or putting down the adsorbed film,
A film surface inspection device that operates to adsorb the film in contact with the second adsorber, transfer it to the product discharge section, and then place it down.