JP2009274861A - Film body carrying device and film body processing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a film body carrying device and a film body processing system having this film body carrying device, capable of collectively carrying respective film materials, without damaging this film body, even in the film body formed by laminating a plurality of film materials. <P>SOLUTION: This film body carrying device includes a holding plate 22 having an abutting surface capable of abutting on one surface in the thickness direction of the film body F, a gas jetting means 21 arranged under the abutting surface, having a gas injection surface 33 for forming a plurality of holes, capable of pressing the film body F arranged between the abutting surface and the gas injection surface 33 to the abutting surface and substantially uniformly jetting gas from the plurality of holes, and a moving part 23 moving the holding plate 22 in at least the crossing direction with the injection direction of the gas injected from the holes. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for transporting a thin and flexible film body such as an optical film mainly used for a liquid crystal display element or the like.

  In a planar light emitting device used for illuminating a liquid crystal display element, at least one lens film having a condensing function and at least one diffusion film that uniformly diffuses emitted light are incorporated. Optical films such as a lens film and a diffusion film can be obtained by punching only an optical film into a predetermined shape in a state where the films are bonded to a sheet for conveyance. The punched optical films are taken out one by one by hand and assembled into a planar light emitting device. When the process of taking out the punched optical film is automated, a method is used in which the surface of the optical film is picked up by a suction device and picked up one by one.

  Patent Document 1 discloses a technique for cutting a plurality of optical films into a predetermined shape and handling them while the plurality of optical films are stacked. According to the technique disclosed in Patent Document 1, the optical film cutting process, which is necessary for the number of optical films incorporated in the planar light emitting device, is completed for each planar light emitting device in one step. In addition, since it is handled in a state where a plurality of optical films are laminated, there is a low possibility that dust will enter between the optical films, and an improvement in product yield can be expected.

  When handling laminated optical films as a unit, it is difficult to handle the optical films so that they do not shift manually, and there is a risk of damaging the optical film by applying a load greater than the allowable load. is there. In the case of adsorbing the surface of the optical film using the adsorption device, only the optical film located on the uppermost surface can be adsorbed, and the superiority of handling in the laminated state is impaired. In order to handle a plurality of optical films in a laminated state, the technique disclosed in Patent Document 1 described above joins the peripheral edges of the optical film laminate.

  On the other hand, as a technique for holding and transporting a plate-like member so as not to cause damage such as scratches, a transport device using an air floating stage as disclosed in Patent Document 2 has been proposed.

JP 2007-156014 A JP 2002-151570 A

  In the technique disclosed in Patent Document 1, in order to handle the laminated optical films as a unit, it is necessary to join the peripheral edges of the laminated body of optical films as described above. In this bonded region (hereinafter referred to as “bonded region”), the optical film is distorted and the flatness of the optical film laminate is impaired, and the required optical characteristics may not be obtained particularly in the vicinity of the bonded region. is there. In order to continuously perform the process of cutting into a predetermined shape in a state where a plurality of optical films are laminated, a plurality of laminated optical films 1 are punched with a punching blade 2 as shown in FIG. It is conceivable to use a film processing apparatus for holding the punched optical film body 5 by the chuck hand 4 in the portion where the edge roller portion 3 for turning back the optical film is provided. However, when the peripheral edge of the optical film body 5 is not joined, the optical film body 5 drawn out from the edge roller portion 3 can be taken out by using an adsorption device as described above. However, the optical film body 5 drawn out as shown in FIG. 8 is highly likely to be bent, and in such a state, the optical film body 5 is sandwiched from above and below. It is also difficult to hold the optical film body 5 by the chuck hand 4. Further, since the plurality of optical film materials included in the optical film body 5 are not joined at the time when the optical film body 5 is drawn out from the edge roller unit 3, even if the optical film body 5 is bent, even the chuck hand 4. Even if it can be sandwiched and held from above and below, there is a high possibility that the respective relative positions will shift.

  In the technique disclosed in Patent Document 2, it is possible to transport a substrate with less bending and high rigidity. However, when transporting a thin and flexible film body, the film material is blown away by air pressure. There is a problem that the air pressure is not evenly applied to the material due to the influence of the warping or the film material has, and it is difficult to float.

  Accordingly, an object of the present invention is to transport a film body that can be transported as a whole without damaging the film body even if the film body is formed by laminating a plurality of film materials. It is providing a film body processing system provided with an apparatus and this film body conveyance apparatus.

The present invention is a film body conveying device for conveying a film body,
A moved member having a contact surface with which one surface in the thickness direction of the film body can contact;
A gas injection surface provided below the contact surface and having a plurality of holes is formed, and the film body provided between the contact surface and the gas injection surface is pressed against the contact surface. Possible, gas ejection means for ejecting gas from the plurality of holes substantially uniformly;
And a moving unit that moves the member to be moved in a direction that intersects at least with respect to the injection direction of the gas injected from the hole.

The present invention also provides the film body conveying device,
A strip-shaped film material transport device that transports the strip-shaped film material fed from a plurality of film roll materials in a stacked state;
A film material punching device that punches at least one strip-shaped film material of the plurality of stacked strip-shaped film materials transported by the strip-shaped film material transport device into a predetermined shape and forms the film body; Including
In synchronization with the transport operation of the roll material transport device, the moving means of the film body transport device moves the moved member and introduces the film body between the contact surface and the gas injection surface. It is the film body processing system characterized by these.

  According to the present invention, one surface in the thickness direction of the film body is in contact with the contact surface, but does not slide, and the other surface in the thickness direction of the film body is separated from the gas injection surface. Since the film body is held by the moved member as non-contact, it can be transported without damaging the film body. Furthermore, since the film body is pressed against and held by the plate material to be moved by the gas jet pressure from one direction, the film body can be stably conveyed without being affected by the warp of the film body. The film body may be a single film material or a plurality of laminated film materials.

  Further, according to the present invention, it is possible to reliably take out and transport the film body punched by the film punching device and transfer it to the next step.

  FIG. 1 is a diagram showing a configuration of a film body processing system 10 according to an embodiment of the present invention. The film material processing system 11 includes a film body conveyance device 11, a strip-shaped film material conveyance device 12, a film material punching device 13, and a gripping device 14 according to an embodiment of the present invention.

  The film body transport device 11 is made of a plurality of laminated film materials, and transports a thin and flexible film body F. The film transport apparatus 11 includes a gas ejection means 21, a holding plate 22 that is a member to be moved, and a moving section 23 and a control section 24 that constitute the moving means.

  FIG. 2 is a diagram showing the configuration of the gas ejection means 21. The gas ejection means 21 includes a gas ejection part 31 and a gas supply part 32. The gas ejection part 31 has a gas ejection surface 33 in which a plurality of holes are formed. The gas ejection surface 33 is formed on the upper surface of the gas ejection part 31 and is formed in a plane. The gas ejection part 31 is formed in a substantially rectangular parallelepiped shape. The gas ejection part 31 is made of a porous material in which fine holes are formed. Although not particularly illustrated, the holes formed in the side surface part 31a of the gas ejection part 31 are sealed with an adhesive or the like so that there is no gas leakage. It has been stopped. The porous material may be made of metal, ceramic, or resin, and the material type is not particularly limited. However, the porous material is open on the upper surface, which is the gas injection surface 33, and on the lower surface. Any structure may be used as long as the gas is ejected from the micropores on the upper surface when the micropores communicate with each other and gas is introduced from the micropores on the lower surface. The pore size of the porous material is several tens to several hundreds of μm, and the opening ratio is generally about 20% to 50%. The value may be appropriately selected depending on the number of stacked layers, and the value is not particularly limited. By forming such fine holes, gas can be ejected substantially uniformly from the plurality of holes of the gas ejection surface 33, and the film body F is pushed upward to hold the film body F, which will be described later. Can be pressed with a substantially uniform force over the entire surface of the film body F, and the film body F can be reliably lifted and pressed. In the present embodiment, the gas ejection direction is a direction perpendicular to the gas ejection surface 31.

  The gas supply unit 32 supplies gas to the gas ejection unit 31 and includes a chamber unit 34, a gas pipe 35, a regulator 36 and a compressor 37. The chamber part 34 is provided to cover the lower surface of the gas ejection part 31, and forms a predetermined space below the gas ejection part 31. The gas supplied to the chamber portion 34 is supplied to the micro holes formed in the gas ejection portion 31 from almost the entire area of the lower surface of the gas ejection portion 31. The gas pipe 35 is connected to the chamber section 34, and the gas pipe 35 is connected to the compressor 37 via the regulator 36. The compressor 37 supplies compressed air to the regulator 36. The regulator 36 depressurizes the compressed air supplied from the compressor 37 and supplies air having a predetermined pressure to the gas pipe 35. In the present embodiment, the gas is air, but is not limited to air, and may be nitrogen gas or the like. When nitrogen gas or the like is used as the gas, a gas cylinder may be used instead of the compressor 37.

  The holding plate 22 has a contact surface 42 on the lower surface on which one surface Fa of the film body F in the thickness direction can contact. The contact surface 42 is formed in a flat surface. The gas ejection surface 33 of the gas ejection part 31 is provided below the contact surface 42. The holding plate 22 is provided at a position facing the gas ejection surface 33 of the gas ejection part 31 so as to be movable by a moving part 23 described later. The holding surface 22 faces the gas ejection surface 33 at a position where the holding plate 22 faces the gas ejection surface 33 of the gas ejection portion 31. Here, the abutting surface 42 is formed as a flat surface, but it may not be a flat surface. When the film body F abuts, the abutting surface 42 contacts the one surface Fa of the film body F so that the film body F becomes flat. The structure which consists of several surfaces in which the surface to contact | separate mutually may be sufficient.

  The main body of the holding plate 22 is made of a metal material, and a nitrile rubber sheet is affixed to the contact surface 42 (not shown). The nitrile rubber is a material generally used as a material for the suction pad, and is flexible so that the film body F is hardly damaged. The material to be attached to the contact surface 42 of the holding plate 22 is not limited to nitrile rubber as long as the material has a lower hardness than the film material.

  The holding plate 22 is provided so as to be movable over a band-shaped film material 43 conveyed by a band-shaped film material conveying device 12 described later and over the gas ejection part 31. The holding plate 22 is provided such that the contact surface 42 and the upper surface of the strip-shaped film material 43 are provided at a predetermined interval in the vertical direction, and the contact surface 42 and the gas injection surface 33 are predetermined in the vertical direction. Are provided at intervals.

  The moving unit 23 has a mechanism capable of moving the holding plate 22 at least in a direction intersecting with the injection direction of the gas injected from the fine holes of the gas injection surface 33 in synchronization with the conveyance of the belt-shaped film material 43. . In this embodiment, this mechanism moves the holding plate 22 in a direction parallel to the gas ejection surface 33 and in a horizontal direction along the feeding direction of the belt-like film material 43. As a mechanism of the moving part 23, a method of fixing a linear motion guide and a nut to the holding plate 22 and operating by rotating a ball screw screwed to the nut with a motor can be considered, but the mechanism is particularly limited. is not. The motor of the moving unit 23 operates in accordance with an operation command from the control unit 24. The holding plate 22 is held by the moving unit 23 so that the contact surface 42 is horizontal.

  FIG. 3 is a bottom view of the holding plate 22, and FIG. 4 is a side view of the holding plate 22. The holding plate 22 has positioning means for positioning the film body F on the contact surface 42. The positioning means is constituted by a plurality of positioning pins 45 having a taper 44 formed at the tip, that is, the tip is tapered. The positioning pin 45 is formed in a substantially cylindrical shape. Each positioning pin 45 is provided in accordance with the shape of the film body F, and when the film body F is pressed against the contact surface 42, the film body is parallel to the contact surface 42 and perpendicular to each other. It is provided to restrict the movement of F. In the present embodiment, since the film body F is rectangular, when the film body F is pressed against the contact surface 42, four positioning pins 45 face each side of the film body F. Positioning pins 45 are provided. By providing the positioning pin 45, when the film body F is pressed against the contact surface 42 by the gas pressure, the film body F can move so as to follow the positioning pin 45 and can be positioned, and is perpendicular to the contact surface 42. The movement of the film body F in the direction can be suppressed. Further, by forming the taper 44 on the positioning pin 45, the film body F can be smoothly guided to a predetermined position. As described above, since the holding plate 22 has positioning means, positioning can be performed simultaneously with the holding of the film body F. Further, the wall is not provided over the entire circumference of the side surface of the film body F, but the positioning means is configured by the positioning pins 45, so that when the film body F is pressed against the contact surface 42, the gas flow is caused by the positioning means. I will not be disturbed.

  When the film body F is rectangular, the four positioning pins 45 are provided in the vicinity of both end portions of one diagonal line of the film body F. By providing the positioning pins 45 in this way, it is possible to achieve the effect of preventing the film positioned during conveyance from moving.

  The length H1 of the positioning pin 45 is not particularly limited as long as it is equal to or greater than the thickness T1 of the film body F, and the upper surface of the film body 43 and the gas ejection part 31 and the distal end of the positioning pin 45 do not interfere with each other.

  A part of the peripheral edge of the film body F is in the state where the film body F is in contact with the contact surface 42 at the end 22A on the downstream side in the transport direction X1 when the holding plate 22 transports the film body F. A notch 39 is formed so as to be exposed. The notch 39 is formed extending in the thickness direction of the holding plate 22 so that the upper surface in the thickness direction of the film body F positioned by the positioning pin 45 is exposed upward. The width W1 of the notch 39 is selected to be larger than the width of the gripping piece 63a of the gripping part 63 of the chuck hand 61 described later, whereby the gripping piece 63a can be moved in the vertical direction. Further, the notch 39 is formed at the center in the width direction of the holding plate 22.

  Referring to FIG. 1 again, the strip-shaped film material transport device 12 transports the strip-shaped film material 43 fed out from a plurality of film roll materials in a stacked state. The plurality of strip-shaped film materials 43 include a first strip-shaped film material 43a, a second strip-shaped film material 43b, and a blade pad strip-shaped film material 43c. The 1st strip | belt-shaped film material 43a, the 2nd strip | belt-shaped film material 43b, and the blade contact strip | belt-shaped film material 43c are laminated | stacked in this order. Each strip-shaped film material 43a, 43b, 43c is transported so that both surfaces in the thickness direction are substantially horizontal in the middle of the transport path, and at the end on the downstream side in the transport direction of the portion transported substantially horizontally, It is wound around the edge roller 46 of the belt-shaped film material conveying device 12 and folded. A portion where both surfaces in the thickness direction of each of the belt-like film materials 43a, 43b, and 43c are conveyed substantially horizontally is referred to as a horizontal conveyance portion. In the horizontal conveyance part, each strip | belt-shaped film material 43a, 43b, 43c is conveyed so that the blade contact strip | belt-shaped film material 43c may be located in the lowest part.

  The belt-shaped film material 43 is wound up by the winding roller 47 at the end of the belt-shaped film material 43 on the downstream side in the transport direction. The strip-shaped film material transport device 12 further includes a first drive unit 49 and a control unit 24. The winding roller 47 is intermittently rotated in a predetermined direction by the first drive unit 49 in synchronization with the operation of the film punching device 13. The first drive unit 49 includes a motor. For example, the first drive unit 49 uses the motor as a drive source, and rotates the rotation shaft of the winding roller 47 via a gear or a friction wheel. The motor of the first drive unit 49 operates in accordance with an operation command from the control unit 24.

  The gas ejection portion 31 is provided in the vicinity of the edge roller 46, and the gas ejection surface 33 is slightly below the height position of each strip-shaped film material 43a, 43b, 43c in the horizontal conveyance portion, and the edge roller 46 It is provided so as to be above a horizontal plane including the rotation axis. For this reason, if the gas ejection part 31 formed in a substantially rectangular parallelepiped shape and the portions wound around the edge roller 46 of the belt-like film materials 43a, 43b, and 43c are arranged at a predetermined interval, the gas ejection surface 33 and the belt-like shape are arranged. Between the portions of the film materials 43a, 43b, and 43c wound around the edge roller 46, in addition to the predetermined distance, the radius of curvature of the edge roller 46 and the distance from the horizontal plane including the axis of the edge roller 46 A gap is formed. When this gap becomes large, a gap preventing member 50 connected to the gas ejection surface 33 is provided at the upper end portion of the side surface facing the edge roller 46 of the gas ejection portion 31. The gap prevention member 50 has an upper surface formed on the same plane as the gas injection surface 33, and a front end portion of the edge roller 46 facing the edge roller 46 of the belt-like film materials 43a, 43b, 43c and a predetermined portion. Provided at intervals.

  Here, the gap prevention member 50 is configured as a separate member from the gas ejection part 31, but a part of the gas ejection part 31 is formed in the same shape as the gap prevention member 50, and the gas ejection part 31 The gap preventing member 50 may be integrally formed. In such a case, since the gas is injected also in the gap preventing member 50, it is more preferable. Further, the gas ejection surface 33 is formed so that the width thereof is at least larger than the width in the direction perpendicular to the conveyance direction and the thickness direction of the film body F, and is approximately the same as the width of the belt-like film material 43. It is formed to become.

  A notch 40 is formed at the end 31A of the gas ejection part 31 on the downstream side in the transport direction X1. When the end 22A on the downstream side in the transport direction X1 of the holding plate 22 and the end 31A on the downstream side in the transport direction X1 of the gas ejection part 31 are arranged to face each other, the gas ejection part 31 The notch 40 is formed so as to overlap the notch 39 of the holding plate 22 in the vertical direction. The width of the notch 40 is formed to be equal to the width of the notch 39, and the depth in the transport direction X1 is selected to be equal to the depth of the notch 39 in the transport direction X1. Thus, the film piece F that is in contact with the contact surface 42 of the holding plate 22 is moved from the vertical direction by moving the grip piece 63b of the grip portion 63 in the vertical direction without contacting the gas ejection portion 31. It can be gripped by the gripping pieces 63a and 63b.

  The film material punching device 13 includes at least one belt-shaped film material 43 out of a plurality of stacked belt-shaped film materials 43 that are transported by the belt-shaped film material transport device 12. The film-like film materials 43a and 43b are punched into a predetermined shape to form a film body F in which a plurality of film materials are laminated. The film material which comprises the film body F consists of synthetic resins, for example, are optical films, such as a lens film and a diffusion film.

  The film material punching device 13 includes a punching blade 51, a second drive unit 52, a receiving unit 53, and a control unit 24. The punching blade 51 is fixed to the second driving unit 52. The 2nd drive part 52 has a press mechanism, and holds the punching blade 51 so that a vertical drive is possible. As the press mechanism, a mechanism combining a motor and a crank mechanism, a mechanism combining a motor and a ball screw, a mechanism combining an air cylinder and a linear guide, and the like are conceivable, but the configuration is not particularly limited. The second drive unit 52 operates according to an operation command from the control unit 24.

  The punching blade 51 is formed in accordance with the shape to be punched out of the band-shaped film material 43, and is formed in a square frame shape in the present embodiment. The second drive unit 52 holds the cutting edge of the punching blade 51 substantially horizontally and moves it vertically. The receiving portion 53 is provided below the punching blade 51, and an upper surface facing the punching blade 51 is formed substantially horizontally. The punching blade 51 and the receiving portion 53 are provided at a predetermined interval on the upstream side in the conveyance direction with respect to the edge roller 46 in the horizontal conveyance portion. This predetermined interval is selected so that the holding plate 22 can be arranged above the strip-shaped film material 43 with a predetermined interval between the punching blade 51 and the edge roller 46 in the horizontal holding portion.

  The punching blade 51 moves over a punching position closest to the receiving portion 53 and a separating position farthest from the receiving portion 53. At least at a separation position, a gap larger than the sum of the thicknesses of the strip film materials 43a, 43b, and 43c is formed between the punching blade 51 and the receiving portion 53. Further, a gap slightly smaller than the thickness of the blade contact strip film material 43c is formed between the punching blade 51 and the receiving portion 53 at the punching position. That is, among the strip-shaped film materials 43a, 43b, and 43c, only the first and second strip-shaped film materials 43a and 43b are punched by the punching blade 51. It is adjusted so that the cutting edge stays at the level of biting.

  The gripping device 14 is provided on the downstream side in the transport direction of the film body F of the film body transport device 11, grips one end of the film body F transported by the film body transport device 11, and transfers it to another device. The gripping device 14 includes a chuck hand 61, a third drive unit 62 that drives the chuck hand 61, and a control unit 24. The chuck hand 61 has a gripping part 63 having gripping pieces 63a and 63b for sandwiching the film body F in the vertical direction, a support part 64 that supports the gripping part 63 at one end and extends in the horizontal direction, and a rotation axis L1. And a rotation shaft portion 65 attached to an end portion of the support portion 64 in the extending direction so as to extend in the vertical direction.

  The gripping part 63 further includes a clamping operation mechanism that moves the gripping pieces 63a and 63b closer to and away from each other in the vertical direction. When gripping the film body F, the grip piece 63a is provided above the grip piece 63b. The holding pieces 63a and 63b are formed in the same size, and the opposing surfaces of the holding pieces 63a and 63b are formed in parallel planes. As a clamping operation mechanism of the gripping part 63, a mechanism using an air cylinder, a mechanism using a motor and a link mechanism, and the like can be considered, but the mechanism is not particularly limited. Further, the third drive unit 62 synchronizes with the operation of the holding plate 22, and the first mechanism capable of moving the chuck hand 61 in the same direction as the movement direction of the holding plate 22, and the chuck hand 61 is rotated in the horizontal plane. A second mechanism that rotates around the axis L1 and a third mechanism that can move the chuck hand 61 in the vertical direction are included. The body portions of the gripping pieces 63a and 63b are made of a metal material, and a nitrile rubber sheet is affixed to the contact surface (not shown). The nitrile rubber is a material generally used as a material for the suction pad, and is flexible so that the film body F is hardly damaged. Note that the material attached to the contact surfaces of the grip plates 63a and 63b is not limited to nitrile rubber as long as the material has a lower hardness than the film material.

  As the first mechanism, there can be considered a method in which a linear guide and a nut are attached to a member for fixing the chuck hand 61 as in the case of the holding plate 22 and a ball screw screwed to the nut is rotated by a motor. However, the mechanism is not particularly limited. Further, as a mechanism for rotating the chuck hand 61, a method of rotating the rotary shaft portion 65 by directly connecting the rotary shaft portion 65 and the rotary shaft portion of the motor or air spindle, or similarly using the motor or air spindle as a drive source. A method of rotating the rotation shaft portion 65 around the rotation axis L1 through a gear or a friction wheel is conceivable, but the mechanism is not particularly limited. Further, as the third mechanism, as in the first mechanism, a linear guide and a nut are attached to a member that fixes the chuck hand 61, and a ball screw screwed to the nut is operated by a motor, or Although the method etc. which combined the air cylinder and the linear motion guide can be considered, the mechanism is not specifically limited. The clamping operation mechanism that operates the gripping pieces 63 a and 63 b and the first to third mechanisms of the third drive unit 62 operate according to an operation command from the control unit 24.

  The control unit 24 is realized by a microcomputer, and includes a moving unit 23, a first control unit included in the film body transport device 11, the strip-shaped film material transport device 12, the film material punching device 13, and the gripping device 14. The nipping operation mechanism of the 1st-3rd drive parts 49,52,62 and the holding | gripping part 63 is controlled, and the operation | movement according to a predetermined program is performed.

  5-7 is a figure explaining operation | movement of the film body conveying apparatus 11 and the film body processing system 10. FIG. Below, with reference to FIGS. 5-7 with FIG. 1, operation | movement of the film body conveying apparatus 11 and the film body processing system 10 is demonstrated.

  FIG. 1 shows a film body transport device 11 and a film body processing system 10 in an initial state. In the initial state, the holding plate 22 is stationary at an initial position P11 at a predetermined interval above the strip-shaped film material 43 between the punching blade 51 and the edge roller 46 in the horizontal holding portion. The holding plate 22 is separated from the belt-shaped film material 43 so that the positioning pins 45 described above do not contact the belt-shaped film material 43. Further, a film body F1 that has already been punched by a punching process described later is located immediately below the holding plate 22 provided at the initial position P11. The contact surface 42 of the holding plate 22 faces the film body F1. The distance between the contact surface 42 of the holding plate 22 and the upper surface of the film body F1 at the initial position P11 is selected to be about 1.0 mm to 1.5 mm.

  A gas having a predetermined pressure is constantly ejected from the gas ejection surface 33 of the gas ejection portion 31. The gas pressure at this time may be appropriately adjusted by the regulator 36 in accordance with the material, size, number of laminated sheets, and the like of the film material to be transported, and the pressure is not limited. About 0.5 MPa is sufficient. In the initial state, the punching blade 51 is provided at the separation position.

  FIG. 5A is a diagram showing a state where the chuck hand 61 is moved to the initial position P21 and the punching blade 51 is moved to the punching position. When the operation is started from the initial state, first, in the first step, the control unit 24 outputs an operation command to the third driving unit 62, and the third driving unit 62 moves the chuck hand 61 to the initial position P21 and performs control. The unit 24 issues an operation command to the second drive unit 52 to lower the punching blade 51 and move it to the punching position. As a result, the first and second strip-shaped film materials 43 a and 43 b are punched into a predetermined shape by the punching blade 51. As described above, at this time, the cutting edge of the punching blade 51 is a blade pad located in the lowermost layer of the first and second belt-shaped film materials 43a and 43b and the blade pad belt-shaped film material 43c laminated at the bottom dead center. The band-shaped film material 43c is adjusted to such a height that only the blade bites into the band-shaped film material 43c and does not punch out the blade-contacting band-shaped film material 43c.

  Further, at this time, the control unit 24 outputs an operation command to the holding operation mechanism of the gripping part 63 so that the gap between the gripping pieces 63a and 63b is equal to or greater than the thickness of the film body F. The distance between the gripping pieces 63a and 63b in the non-clamping state is preferably set to be 10 times or more the thickness of the film body F. When the chuck hand 61 is disposed at the initial position P21, the free end portion of the grip piece 63b is disposed in a space where the notch 40 faces, that is, the free end portion of the grip piece 63b is disposed on each side surface of the notch 40. It is arranged to face. At this time, the upper surface of the gripping piece 63b is disposed below a virtual plane including the gas ejection surface 33. Further, the lower surface of the gripping piece 63a is disposed above a virtual plane including the contact surface 42.

  FIG. 5B is a diagram showing a state in which the chuck hand 61 is moved to the initial position P21 and the punching blade 51 is moved to the punching position. Next, in the second step, the control unit 24 issues an operation command to the second drive unit 52 to raise the punching blade 51 and move it to the separation position. The film body F2 formed by punching the first and second belt-like film materials 43a and 43b into a predetermined shape is laminated on the blade pad belt-like film material 43c, and the first and second The film-like film materials 43a and 43b are held in a state surrounded by a portion 71 (not removed) included in the film body F.

  FIG. 5 (3) shows that each of the laminated film materials 43 a, 43 b, 43 c is fed by one pitch in the conveying direction by the belt-shaped film material conveying device 12, that is, the blade film material material 43 and the scraper 71 are beaten together. It is a figure which shows a mode that the film bodies F1 and F2 which were formed by drawing are sent by 1 pitch in a conveyance direction. Here, feeding by one pitch means that the film body F is generated by being punched by the punching blade 51 and from the position facing the punching blade 51 to the position facing the holding plate 22 when it is disposed at the initial position P11. It is to move. Next, in the third step, the control unit 24 issues an operation command to the first drive unit 49, rotates the take-up roller 47, and further issues an operation command to the moving unit 23. While conveying F <b> 1, the holding plate 22 is moved in the feeding direction of the strip-shaped film material 43 in synchronization with the feeding of the strip-shaped film material 43. At this time, the operation acceleration and speed of the holding plate 22 are set to be the same as the feed acceleration and speed of the belt-shaped film material 43. Therefore, the holding plate 22 moves with the contact surface 42 facing the film body F1.

  When the downstream end of the film body F1 in the transport direction exceeds the apex of the edge roller 46, the scraping 71 is transported along the outer peripheral surface of the edge roller 46, but the film body F1 is slipping 71. Therefore, by forming the curvature radius of the edge roller 46 smaller than the curvature radius when the film body F1 is bent and bent by its own weight, the end of the film body F1 on the downstream side in the transport direction is formed. The part is separated from the spit 71 and passes over the gap prevention member 50 and moves onto the gas injection surface 31.

  When the end of the film body F1 moves onto the gas ejection surface 33, gas is constantly ejected from the gas ejection surface 31, so that the end of the film body F1 rises, and the holding plate 22 is moved in the transport direction X1. When moved, the film body F1 is sequentially pressed against the contact surface 42 of the holding plate 22 from the downstream end portion in the transport direction X1 toward the upstream side in the transport direction X1. At this time, since the positioning plate 45 is provided on the holding plate 22, when the film body F1 is pressed against the holding plate 22 by the gas pressure, the positioning plate 45 operates to follow the positioning pin 45 and the positioning is completed. Subsequently, when the holding plate 22 is moved in the transport direction X1 and the film body F1 is moved completely above the gas injection surface 31 together with the holding plate 22, the entire film body F1 is pressed against the holding plate 22 by the gas jet pressure. And is held. In this state, the holding plate 22 is moved to the gripping position P12 where the film body F1 is gripped by the gripping device 14. On the gas ejection surface 33, the distance between the contact surface 42 of the holding plate 22 and the gas ejection surface 33 is the distance between the contact surface 42 of the holding plate 22 and the upper surface of the film body F1 (1.0 mm to 1.. 5 mm) is selected to be about 2.0 mm, but this interval is preferably as small as possible.

  FIG. 6A is a diagram illustrating a state in which the holding plate 22 is moved to the gripping position P12 where the gripping device 14 grips the film body F1. The gripping position P12 is a position where the end 22A of the holding plate 22 on the downstream side in the transport direction X1 and the end 31A of the gas ejection part 31 on the downstream side in the transport direction X1 are opposed to each other. . When the holding plate 22 is arranged at the delivery position P12, the notch 39 is formed in the holding plate 22 and the notch 40 is formed in the gas ejection part 31 as described above. In the portions 39 and 40, a part of the peripheral edge of the film body F1 is exposed. Therefore, the exposed portion is placed in the gap between the grip pieces 63a and 31b of the chuck hand 61. Next, in the fourth step, the control unit 24 outputs an operation command to the clamping operation mechanism, and moves the gripping pieces 63a and 63b in the non-clamping state in a direction approaching each other, so that one of the peripheral parts of the film body F1 is moved. Grip the part. As a result, the first and second film materials are sandwiched between the gripping pieces 63a and 63b in a stacked state. Thus, since the notch portions 39 and 40 are formed in the holding plate 22 and the gas ejection portion 31, the film body F can be easily gripped by the gripping device 14, and the film body transporting device 11 is transferred to the gripping device 14. Delivery of the film body F becomes easy.

  FIG. 6B is a diagram illustrating a state in which the holding device 22 and the gripping device 14 are further moved in the transport direction X1. Next, in the fifth step, the control unit 24 outputs an operation command to the moving unit 23 to further move the holding plate 22 in the transport direction X1, and outputs an operation command to the third driving unit 62 in synchronization with this. Then, the chuck hand 61 is moved in the transport direction X1. The moving unit 23 and the third driving unit 62 move the holding plate 22 and the chuck hand 61 horizontally while holding the relative positions, and the entire film body F1 held by the holding plate 22 is gas They are moved to positions P13 and P22 that deviate from the ejection surface 31. At this time, the operation acceleration and speed of the holding plate 22 and the operation acceleration and speed of the chuck hand 61 are set to be the same. Further, when the holding plate 22 and the chuck hand 61 are moved to the positions P13 and P22, respectively, the film body F1 is not applied with the gas pressure by the gas jetting means 21, and therefore is not held by the chuck hand 61 by its own weight. Although there is a possibility that the end of the side hangs down, there is no member that interferes with the film body F1 below the film body F1, and therefore the film body F1 even if the chuck hand 61 is operated. Problems such as scratching will not occur.

  FIG. 7A is a diagram illustrating a state in which the chuck hand 61 that holds the film body F1 is moved downward. Next, in the sixth step, an operation command is output to the third drive unit 62, the chuck hand 61 is moved downward, and the film body F1 and the contact surface 42 of the holding plate 22 are brought into a non-contact state. Simultaneously with this operation, the control unit 24 outputs an operation command to the moving unit 23 and further moves the holding plate 22 in the direction opposite to the conveying direction X1 to return to the initial position P111.

  FIG. 7A is a diagram showing a state in which the chuck hand 61 holding the film body F1 is moved. Next, in the seventh step, the control unit 24 outputs an operation command to the third driving unit 62, for example, rotates the chuck hand 61 by 90 degrees around the rotation axis L1 in the horizontal plane, An operation such as transferring the film body F1 to a predetermined position on another member is performed. When the seventh step is finished, the control unit 24 outputs an operation command to the third driving unit 62, repositions the chuck hand 61 at the initial position P21, and thereafter performs the first to seventh steps and the initial step. By repeating, the film body F can be formed and conveyed sequentially.

  As described above, the film body processing apparatus 10 forms the film body F from the laminated body of the film material fed out from the film roll material by the belt-shaped film material transport apparatus 12 without being bonded, and the film body F is surely secured. It is possible to take it out and hold it and transfer it to the subsequent process.

  The film body conveyance device 11 can be suitably used when the film body F formed by punching is delivered to the chuck hand 61. Further, one surface in the thickness direction of the film body F is in contact with the contact surface 42 but does not slide, and the other surface in the thickness direction of the film body F is separated from the gas injection surface 33 and is non-sliding. Since the film body F can be held as a contact, the film body F can be transported without being damaged. Furthermore, since the film body F is pressed against and held by the holding material 22 by the gas jet pressure from one direction, the film body F can be stably conveyed without being affected by the warp of the film body F. is there. Moreover, in the film body conveying apparatus 11, not only can the film body F be conveyed, but also the punched film body F can be prevented from being twisted together with the waste film without being separated from the scraps 71 after punching.

  In another embodiment of the present invention, the holding plate 22 and the moving unit 23 in the above-described embodiment may be replaced with a belt conveyor, and the same effect is achieved even with such a configuration. be able to. When the holding plate 22 and the moving unit 23 are replaced with a belt conveyor, the lower stretched portion of the belt of the belt conveyor is configured such that the initial position P11 and the entire film body F1 are the gas injection surface. 31 may be arranged in advance over the position P13 deviating from the top.

  In the above-described embodiment, the holding plate 22 is moved in parallel to the gas injection surface 33. However, the movement direction of the holding plate 22 is not limited to being parallel to the gas injection surface 33, and the gas injection surface. The direction may be a direction that is inclined in the vertical direction with respect to 33, and may be any direction that intersects at least the injection direction of the gas injected from the fine holes of the gas injection surface 33.

  In the present embodiment, the film body F transported by the film body transport device 11 is composed of a plurality of laminated film materials, but the film body F may be composed of a single film material. Even if the transport device 11 has a configuration in which the film body F is made of one film material, it can be transported in the same manner.

It is a figure which shows the structure of the film body processing system 10 of one Embodiment of this invention. FIG. 3 is a diagram showing a configuration of gas ejection means 21. 3 is a bottom view of the holding plate 22. FIG. 3 is a side view of a holding plate 22. FIG. It is a figure explaining operation | movement of the film body conveying apparatus 11 and the film body processing system 10. FIG. It is a figure explaining operation | movement of the film body conveying apparatus 11 and the film body processing system 10. FIG. It is a figure explaining operation | movement of the film body conveying apparatus 11 and the film body processing system 10. FIG. In a prior art, it is a figure which shows an example of the film body processing apparatus for performing continuously the process cut | judged to a predetermined shape in the state which laminated | stacked the several optical film.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Film body processing system 11 Film body conveyance apparatus 12 Band-shaped film material conveyance apparatus 13 Film punching apparatus 14 Gripping apparatus 21 Gas ejection means 22 Holding plate 23 Moving part 31 Gas ejection part 32 Gas supply part 33 Gas injection surface 39 Notch part 40 Notch part 42 Contact surface 43 Band-shaped film material 45 Positioning pin F Film body X1 Conveying direction

Claims (5)

A film body transport device for transporting a film body,
A moved member having a contact surface with which one surface in the thickness direction of the film body can contact;
A gas injection surface provided below the contact surface and having a plurality of holes is formed, and the film body provided between the contact surface and the gas injection surface is pressed against the contact surface. Possible, gas ejection means for ejecting gas from the plurality of holes substantially uniformly;
And a moving means for moving the member to be moved in a direction that intersects at least with respect to the injection direction of the gas injected from the hole.   The film body conveying apparatus according to claim 1, wherein the gas ejection unit includes a gas ejection part in which the gas ejection surface is formed, and the gas ejection part is made of a porous material.   The film body conveying apparatus according to claim 1, wherein the moved member includes positioning means for positioning the film body on the contact surface.   A notch is formed at the downstream end of the moving member in the moving direction so that a part of the peripheral edge of the film body is exposed with the film body in contact with the contact surface. The film body conveyance device according to claim 1, wherein the film body conveyance device is a film body conveyance device. The film body conveyance device according to any one of claims 1 to 4,
A strip-shaped film material transport device that transports the strip-shaped film material fed from a plurality of film roll materials in a stacked state;
A film material punching device that punches at least one strip-shaped film material of the plurality of stacked strip-shaped film materials transported by the strip-shaped film material transport device into a predetermined shape and forms the film body; Including
In synchronization with the transport operation of the roll material transport device, the moving means of the film body transport device moves the moved member and introduces the film body between the contact surface and the gas injection surface. Film body processing system characterized by

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