JP2020070117A - Transport assist jig and film producing apparatus - Google Patents

Abstract

To provide a transport assist jig and a film producing apparatus capable of smoothing out a wrinkle occurred in a film under transportation and correcting the transport position of the film while preventing the occurrence of injuries, etc. in the film.SOLUTION: A transport assist jig is provided on a transport path of a film and assists in transporting the film. The transport assist jig comprises a hold member that holds the film from opposite positions in a thickness direction of the film, so that the hold member can change the angle of the film while holding the film in a non-contact state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a transport auxiliary jig and a film manufacturing apparatus.

  In a film production line, predetermined processing and the like may be performed while the film is being conveyed. The film may be conveyed by floating the film, and in such a case, wrinkles or shrinkage may occur in the film. If wrinkles or shrinkage occur in the film being conveyed, deviation of the conveying position may occur, or a portion of the film having a dimension smaller than the prescribed size may occur.

  Therefore, when wrinkles or the like occur on the film being conveyed, the wrinkles and the like of the film can be extended by stopping the production line and pulling by pulling the film by pinching it or by sandwiching the film end with a roller. It is performed (for example, refer to Patent Document 1).

JP, 2009-234713, A

  When the film is pinched and pulled as a countermeasure against wrinkles on the film during transportation, the jig for pinching the film may be pulled, which may lead to equipment damage. It was Further, when a method of sandwiching the end portion of the film with a roller and pulling the film is adopted, a scratch or the like may occur on the film due to the contact between the film and the roller and the film slipping on the roller.

  Therefore, an object of the present invention is to provide a transport auxiliary jig and a film manufacturing apparatus capable of removing wrinkles generated in a film being transported and correcting the transport position while preventing the occurrence of scratches or the like in the film. Especially.

As a result of diligent studies to solve the above-mentioned problems, the present inventor has carried out a conveyance assisting jig provided with a gripping member capable of changing the angle of the film while gripping the film in a non-contact state from positions facing each other in the film thickness direction. The present invention has been completed by finding out that the use of the method makes it possible to prevent the film from being scratched and the like while wrinkling that has occurred in the film being conveyed and to correct the conveying position.
That is, the present invention is as follows.

[1] A transport auxiliary jig which is provided on a transport route of a film and assists transport of the film,
From a position facing in the thickness direction of the film, a grip member for gripping the film is provided,
The gripping member is a member capable of changing the angle of the portion of the film gripped by the gripping member with respect to the direction parallel to the transporting direction of the film while gripping the film in a non-contact state. Auxiliary jig.
[2] The conveyance assisting jig according to [1], wherein the gripping member is a member having a hole on its surface for ejecting a gas that holds the film in a non-contact state.
[3] The conveyance assisting jig according to [1], wherein the gripping member has a flow path through which gas flows in a direction parallel to the width direction of the film.
[4] The gripping member has a groove portion formed on the surface in a direction perpendicular to the transport direction of the film,
Any one of [1] to [3], wherein the groove portion has a gas ejection hole for ejecting gas into the groove portion and an exhaust hole for ejecting gas ejected from the gas ejection hole to the outside of the groove portion. The transportation auxiliary jig described in the item 1.
[5] The gripping member includes a first gripping member and a second gripping member arranged at positions facing each other in the thickness direction of the film,
The conveyance assisting jig according to any one of [1] to [4], including a hinge that connects the first grip portion and the second grip portion.
[6] The transport auxiliary jig according to [5], further including a spacing member that holds a spacing between the first grip portion and the second grip portion.
[7] An apparatus for manufacturing a film, which is provided with the transfer auxiliary jig according to any one of [1] to [5] in a film transfer path.
[8] The gripping member of the conveyance assisting jig has a groove portion formed on the surface in a direction perpendicular to the film conveyance direction,
The groove portion has a gas ejection hole for ejecting gas into the groove portion, and a discharge hole for discharging the gas ejected from the gas ejection hole to the outside of the groove portion,
The film manufacturing apparatus, a device for detecting the running position of the film,
An adjusting device for adjusting at least one of an ejection amount and an ejection speed of the gas ejected from the gas ejection hole, the film manufacturing apparatus.

  ADVANTAGE OF THE INVENTION According to the present invention, it is possible to provide a conveyance assisting jig and a film manufacturing apparatus capable of removing wrinkles generated in a film being conveyed and correcting the conveyance position of the film while preventing the film from being scratched or the like. can do.

FIG. 1 is a front view schematically showing the conveyance assisting jig of the first embodiment. FIG. 2 is a side view schematically showing the conveyance assisting jig. FIG. 3 is a front view schematically showing the conveyance assisting jig when the film is held. FIG. 4 is a side view schematically showing a state where the film is held by the holding member. FIG. 5 is a side view schematically showing a state in which the film is grasped by the grasping member and the angle of the film is changed. FIG. 6 is a side view schematically showing a state in which the film is grasped by the grasping member and the angle of the film is changed. FIG. 7 is a perspective view schematically showing the grip member. FIG. 8 is a partial cross-sectional view schematically showing a cross section taken along line ZZ of FIG. 7.

  Hereinafter, the present invention will be described in detail by showing embodiments and exemplifications. However, the present invention is not limited to the embodiments described below, and may be arbitrarily modified and implemented within the scope of the claims of the present invention and the scope of equivalents thereof.

  In the following description, the “long” film refers to a film having a length of 5 times or more with respect to the width, preferably having a length of 10 times or more, specifically, a roll. A film having such a length that it can be wound into a shape and stored or transported. The upper limit of the length of the long film is not particularly limited and may be, for example, 100,000 times or less the width.

  In the following description, the directions of the constituent elements are “parallel”, “vertical” or “orthogonal” unless otherwise specified, within a range not impairing the effects of the present invention, for example, usually ± 5 °, preferably ± 2. The error may be included within the range of 0 °, more preferably ± 1 °.

[Outline of auxiliary jig of the present invention]
The transport assisting jig of the present invention is a transport assisting jig that is provided in the transport route of a film and assists the transport of the film. The conveyance assisting jig includes a gripping member that grips the film from positions facing each other in the thickness direction of the film, and the gripping member is gripped by the gripping member of the film while gripping the film in a non-contact state. It is a member that can change the angle of the part with respect to the direction parallel to the film transport direction. In this specification, the “angle of the portion of the film gripped by the gripping member with respect to the direction parallel to the film transport direction” may be referred to as the “film angle”.

[Outline of film manufacturing apparatus of the present invention]
The film manufacturing apparatus of the present invention is a film manufacturing apparatus including the transfer auxiliary jig of the present invention in the film transfer path.

[Embodiment 1]
Hereinafter, a conveyance assisting jig and a film manufacturing apparatus including the conveyance assisting jig according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 8. FIG. 1 is a front view schematically showing the conveyance assisting jig of the first embodiment. FIG. 2 is a side view schematically showing the conveyance assisting jig. FIG. 3 is a front view schematically showing the conveyance assisting jig when the film is held (the film is not shown). FIG. 4 is a side view schematically showing a state where the film is held by the holding member. FIG. 5 is a side view schematically showing a state in which the film is grasped by the grasping member and the angle of the film is changed. FIG. 6 is a side view schematically showing a state in which the film is grasped by the grasping member and the angle of the film is changed. FIG. 7 is a perspective view schematically showing the grip member. FIG. 8 is a partial cross-sectional view schematically showing a cross section taken along line ZZ of FIG. 7.

[1. Transfer auxiliary jig]
The transport assisting jig 100 of the present embodiment is a jig that is provided in the transport path of the film 10 and assists in transporting the film. As shown in FIGS. 1 and 3, the conveyance assisting jig 100 of the present embodiment includes gripping members 110 and 120 that grip the film and support members 130 that support the gripping members 110 and 120.

[Gripping member]
As shown in FIG. 4, the gripping members 110 and 120 have a first gripping portion 111 and a second gripping portion 121, which are arranged at positions facing each other in the thickness direction of the film 10 (direction indicated by A2). In FIG. 4, the direction indicated by A1 is the transport direction of the film, the left side in the figure is the upstream side in the transport direction, and the right side in the figure is the downstream side in the transport direction (same in FIGS. 5 and 6). The gripping members 110 and 120 may be arranged such that, when the film 10 is gripped, the longitudinal direction (the left-right direction in FIGS. 1 and 3) is parallel to the width direction of the film 10.

  As shown in FIG. 2, the gripping members 110 and 120 are members whose side view has an arch shape. The surfaces of the gripping members 110 and 120 arranged on the film 10 side are arc-shaped, as shown in FIG. In the present embodiment, the arc-shaped portion of the grip member 110 is the first grip portion 111, and the arc-shaped portion of the grip member 120 is the second grip portion 121. The first grip portion 111 and the second grip portion 121 are not in contact with the film 10 even when the film 10 is gripped.

  The grip members 110 and 120 are members that can change the angle of the film 10 while gripping the film 10 in a non-contact state. As described below, the angle of the film 10 can be changed by tilting the grip members 110 and 120.

  As shown in FIG. 5, when the gripping member 110 and the gripping member 120 are arranged at positions facing each other in the thickness direction of the film 10 and tilted to the downstream side (right side in the drawing) in the transport direction, the film 10 is brought into a non-contact state. While gripping, the angle of the film 10 can be changed so that the angle with respect to the direction parallel to the transport direction (the direction indicated by the line XX in the drawing) is θ1. The line Y1-Y1 indicates the orientation of the film surface whose angle is changed by the grip members 110 and 120 (the orientation of the film surface of the portion 10A gripped by the grip member). By inclining the gripping members 110 and 120 and changing the angle of the film 10, the film transport distance becomes longer in the gripped portion 10A of the film 10, and the film tension tends to be localized and the film tends to bend in the flow direction. It can take power. By applying these forces to the film 10, an uneven curved surface in the flow direction (a surface having unevenness along the flow direction) can be generated, the film rigidity is increased, and surplus due to wrinkles generated in the width direction is generated. It is possible to extend the wrinkles of the film 10 by expanding the portion (the portion where the films are overlapped). By extending the wrinkles of the film 10 in this manner, the entire film becomes smooth and the transport position can be corrected.

  As shown in FIG. 6, when the gripping member 110 and the gripping member 120 are arranged at positions facing each other in the thickness direction of the film 10 and tilted to the upstream side (left side in the drawing) in the transport direction, the film 10 is brought into a non-contact state. While gripping, the angle of the film 10 can be changed so that the angle with respect to the direction parallel to the transport direction (the direction indicated by the line XX in the drawing) is θ2. The line Y2-Y2 indicates the orientation of the film surface whose angle has been changed by the grip members 110 and 120 (the orientation of the film surface of the portion 10A gripped by the grip members). By tilting the gripping members 110 and 120 and changing the angle of the film 10, as in the case shown in FIG. 5, a force is applied to the film 10, and wrinkles of the film can be extended and the transport position can be corrected.

  The gripping member 110 and the gripping member 120 are arranged at positions facing each other in the thickness direction of the film 10, and an operation of tilting to the downstream side in the transport direction (operation shown in FIG. 5) and an operation of tilting to the upstream side (operation shown in FIG. 6). ), It is possible to unfold the wrinkle of the film and correct the transport position by performing one operation, but by repeating these operations continuously or alternately, the wrinkle extension of the film is performed intermittently. Thus, the wrinkles of the film and the transport position can be corrected more remarkably.

  The gripping members 110 and 120 may be members having holes on their surfaces for ejecting a gas that holds the film 10 in a non-contact state. FIG. 2 shows how gas is ejected from the surfaces of the gripping members 110 and 120. The material of the gripping members 110, 120 is preferably a material having holes for ejecting gas, and specific examples thereof include porous materials such as carbon porous and alumina porous. When the gripping member made of such a porous material is used, the film 10 can be levitated by the pressure of the gas ejected from the gripping members 110 and 120. Therefore, even when a high tension is applied to the film 10, The contact between the film 10 and the gripping members 110 and 120 can be prevented, and the occurrence of scratches and the like due to the contact between the film 10 and the gripping members 110 and 120 can be more effectively prevented.

  When a material having holes for ejecting gas is used as the material for the grip members 110 and 120, the hole diameter is preferably 5 μm or less, more preferably 3 μm or less. If the pore size is too large, some of the pores may be blocked and gas may leak from other pores.If the pore size is less than the upper limit, even if some of the pores are blocked, the gas Leakage can be prevented, and the film 10 can be gripped by the gripping members 110 and 120 with a uniform force. It is speculated that this is due to the following mechanism. When the hole diameter is too large, when some of the holes are covered with the film and floated, the pressure fluctuations are transmitted through the internal structure of the gripping member, and a large amount of air leaks out from the part where the film is not covered. The film may not be able to be sufficiently floated. When the hole diameter is less than or equal to the upper limit value, even when some of the holes are covered with the film and floated, it is difficult for the fluctuation of the pressure to be transmitted to the internal structure of the gripping member, and a large amount of the film is applied to the uncovered part. Air leakage is suppressed, and the film 10 can be held by the holding members 110 and 120 with a uniform force.

  In the present invention, the gripping members 110 and 120 may be configured to have a flow path for allowing gas to flow in a direction parallel to the width direction of the film 10. For example, a gas inlet for introducing gas is provided at one end 112, 122 side of the gripping members 110, 120, and an exhaust port for discharging gas is provided at the other end 113, 123 side of the gripping members 110, 120. By providing the flow path so that the gas flows from the gas introduction port to the discharge port, the gas can flow in parallel to the longitudinal direction of the gripping members 110 and 120. By arranging the longitudinal direction of the gripping members 110 and 120 so as to be parallel to the width direction of the film 10, the gas is caused to flow in the direction parallel to the width direction of the film 10 in the channel provided in the gripping members 110 and 120. sell. Examples of the gas flowing in the flow path include compressed air and the like.

  In the present embodiment, as shown in FIG. 7, the grip member 110 has a plurality of groove portions 115 on the surface (the surface arranged on the film 10 side). In the present embodiment, the groove 115 can function as the above-mentioned flow path. The plurality of groove portions 115 are formed at intervals in the first grip portion 111 of the grip member 110. The groove 115 is formed in a direction parallel to the longitudinal direction of the grip member 110. The groove 115 is formed in a part of the grip member 110 in the longitudinal direction. Since the longitudinal direction of the gripping member 110 is arranged in a direction perpendicular to the transport direction of the film 10, the forming direction of the groove 115 (hereinafter also referred to as “groove forming direction”) is a direction perpendicular to the transport direction of the film 10. That is, the width direction of the film 10.

  As shown in FIG. 8, each groove 115 has a gas ejection hole 115 </ b> A for ejecting gas into the groove 115 and a discharge hole 115 </ b> B for ejecting the gas ejected into the groove 115 to the outside of the groove 115. The gas ejection hole 115A communicates with the gas introduction port 116A of the one end 112 of the grip member 110. The discharge hole 115B communicates with the discharge port 116B of the other end 113 of the grip member 110. Gas can be supplied to the gas inlet 116A from a gas supply unit (not shown). The gas flowing from the discharge hole 115B to the discharge port 116B can be discharged to the outside of the grip member 110 from the discharge port 116B. In FIG. 8, the arrow indicated by A3 indicates the direction of gas flow that can occur between the film and the groove when the groove 115 is covered with the film (not shown). Such a flow of gas makes the gas pressurized in the gas ejection hole 115A by introducing pressurized gas from the gas introduction port 116A, and the pressure in the discharge hole 115B is smaller than that in the gas ejection hole 115A. (For example, atmospheric pressure), and can occur when the groove 115 is covered with the film 10. Then, when such a gas flow is generated, resistance to the gas flow is generated on the surface of the film 10, and the film 10 is pulled in the groove forming direction (direction parallel to the longitudinal direction of the gripping member 110). It is possible to adjust the film tension by controlling the flow of the gas. For example, by increasing the gas flow from the gas ejection hole 115A to the discharge hole 115B, the effect of expanding the film in the width direction can be increased, and the gas flow from the gas ejection hole 115A to the discharge hole 115B can be reduced. By doing so, the effect of expanding the film in the width direction can be reduced. Such a gas flow can be controlled by adjusting the number of the groove portions 115 covered by the film 10 and the region of the groove portions 115, and the ejection amount and ejection speed of the gas ejected from the gas ejection holes 115A. Examples of the gas ejected from the gas ejection holes 115A of the groove 115 include compressed air.

  Although not shown in detail, the gripping member 120 is a member having the same configuration as the gripping member 110, and has a groove portion in the same mode as the gripping member 110 on its surface (second gripping portion 121). That is, the gas ejection holes and the discharge holes are also formed in each groove formed in the grip member 120, similarly to the groove 115 of the grip member 110.

[Supporting member]
As shown in FIG. 3, the support member 130 is a member that supports the grip members 110 and 120, and includes a first support portion 131 that supports the grip member 110, a second support portion 132 that supports the grip member 120, and a first support portion 132. The hinge 133 that connects the support 131 and the second support 132 is provided. Therefore, the first grip 111 and the second grip 121 are connected via the hinge 133. In the present invention, the hinge 133 and the support member 130 are arbitrary members.

  Inside the hinge 133, a rectangular parallelepiped member 150 is attached. The member 150 is a gap holding member 150 that holds the gap between the first grip 111 and the second grip 121. The gap holding member 150 allows the first grip portion 111 and the second grip portion to be arranged with a predetermined gap, and can suppress contact between the first grip portion 111 and the second grip portion 121. In the present invention, the spacing member 150 is an optional member.

[the film]
The film 10 that can be used for assisting the transportation by the transportation auxiliary jig 100 of the present embodiment will be described.
As the film 10, a long film that can be continuously conveyed can be used. The film 10 may be a film having a single layer structure or a laminated film composed of a plurality of layers. Further, the film may be a stretched film. When a stretched film is used as the film, the stretching method and the stretching conditions can be set appropriately.

  A resin film may be used as the film 10. Examples of the resin film include a resin film containing an alicyclic structure-containing polymer, a polyethylene terephthalate (PET) film, a polyethylene naphthalate (PEN) film, an acrylic film, a polyethylene (PE) film, a polypropylene (PP, OPP). Films, polycarbonate (PC) films, polystyrene (PS) films, triacetyl cellulose (TAC) films, polyvinyl chloride (PVC) films, plastic films such as polyimide (PI) films, and polyphenylene sulfide (PPS) films, poly Super engineering plastics such as tetrafluoroethylene (PTFE) film, polyetheretherketone (PEEK) film, polyethersulfone (PES) film and aramid film Film and the like.

  When the film is a resin film, the resin contains a polymer. The polymer, alicyclic structure-containing polymer, polyethylene terephthalate, polyethylene naphthalate, acrylic polymer, methacrylic polymer, polyethylene, polypropylene, polycarbonate, polystyrene, triacetyl cellulose, polyvinyl chloride, polyimide, polyphenylene sulfide, Included are polytetrafluoroethylene, polyetheretherketone, polyethersulfone, aramid, and combinations thereof. Of these, alicyclic structure-containing polymers are preferred.

The alicyclic structure-containing polymer is an amorphous polymer having an alicyclic structure in the repeating unit, and a polymer having an alicyclic structure in the main chain and an alicyclic structure in the side chain. Any of the polymers contained can be used.
Examples of the alicyclic structure include a cycloalkane structure and a cycloalkene structure, and the cycloalkane structure is preferable from the viewpoint of thermal stability and the like.
The number of carbon atoms constituting one repeating unit of the alicyclic structure is not particularly limited, but is usually 4 to 30, preferably 5 to 20, and more preferably 6 to 15.

  The proportion of repeating units having an alicyclic structure in the alicyclic structure-containing polymer is appropriately selected according to the purpose of use, but is usually 50% by weight or more, preferably 70% by weight or more, more preferably 90% by weight. That is all. By increasing the number of repeating units having an alicyclic structure in this way, the heat resistance of the resin film can be increased.

  Specific examples of the alicyclic structure-containing polymer include (1) norbornene polymer, (2) monocyclic cycloolefin polymer, (3) cyclic conjugated diene polymer, (4) vinyl alicyclic hydrocarbon. Examples thereof include polymers and hydrogenated products thereof. Among these, norbornene polymers and hydrogenated products thereof are more preferable from the viewpoint of transparency and moldability.

Examples of the norbornene polymer include ring-opening polymers of norbornene monomers, ring-opening copolymers of norbornene monomers with other monomers capable of ring-opening copolymerization, and hydrogenated products thereof; addition polymers of norbornene monomers, Examples thereof include addition copolymers of norbornene monomers with other copolymerizable monomers. Among these, hydrogenated products of ring-opening polymers of norbornene monomers are particularly preferable from the viewpoint of transparency.
The alicyclic structure-containing polymer is selected, for example, from the polymers disclosed in JP-A-2002-321302.

  The alicyclic structure-containing polymer has a glass transition temperature of preferably 80 ° C or higher, more preferably 100 ° C to 250 ° C. The alicyclic structure-containing polymer having a glass transition temperature in such a range is resistant to deformation and stress during use at high temperatures, and has excellent durability.

  The molecular weight of the alicyclic structure-containing polymer is the polyisoprene conversion measured by gel permeation chromatography (hereinafter, abbreviated as “GPC”) using cyclohexane (toluene when the resin does not dissolve) as a solvent. The weight average molecular weight (Mw) in terms of polystyrene (when the solvent is toluene) is usually 10,000 to 100,000, preferably 25,000 to 80,000, and more preferably 25,000 to 50,000. is there. When the weight average molecular weight is in such a range, the mechanical strength and molding processability of the resin film are highly balanced.

  The alicyclic structure-containing polymer has a molecular weight distribution (weight average molecular weight (Mw) / number average molecular weight (Mn)) of usually 1 to 10, preferably 1 to 4, and more preferably 1.2 to 3.5. ..

The resin containing the alicyclic structure-containing polymer has a content of a resin component (that is, an oligomer component) having a molecular weight of 2,000 or less, preferably 5% by weight or less, more preferably 3% by weight or less, and further preferably It is 2% by weight or less. When the amount of the oligomer component is within the above range, the generation of fine projections on the surface is reduced, the variation in thickness is reduced, and the surface accuracy is improved. The amount of the oligomer component can be reduced by appropriately setting conditions such as selection of a polymerization catalyst and a hydrogenation catalyst; reaction conditions such as polymerization and hydrogenation; temperature conditions in the step of pelletizing a resin as a molding material; You can do it.
The component amount of the oligomer can be measured by the above-mentioned GPC.

The resin containing the alicyclic structure-containing polymer may be composed of only the alicyclic structure-containing polymer, but may contain any compounding agent as long as the effects of the present invention are not significantly impaired. The proportion of the alicyclic structure-containing polymer in the resin containing the alicyclic structure-containing polymer is preferably 70% by weight or more, more preferably 80% by weight or more.
Preferable specific examples of the resin containing the alicyclic structure-containing polymer include “Zeonor” manufactured by Nippon Zeon Co., Ltd.

  The resin may include optional components in addition to the above polymers. Examples of the optional component include antioxidants such as phenol-based antioxidants, phosphorus-based antioxidants, and sulfur-based antioxidants; light stabilizers such as hindered amine light stabilizers; petroleum wax, Fischer-Tropsch wax, Waxes such as polyalkylene waxes; sorbitol compounds, metal salts of organic phosphoric acids, metal salts of organic carboxylic acids, nucleating agents such as kaolin and talc; diaminostilbene derivatives, coumarin derivatives, azole derivatives (for example, benzoxazole derivatives, Fluorescent brighteners such as benzotriazole derivatives, benzimidazole derivatives, and benzothiazole derivatives), carbazole derivatives, pyridine derivatives, naphthalic acid derivatives, and imidazolone derivatives; benzophenone-based UV absorbers, salicylic acid-based UV absorbers, benzotriazole-based UV absorbers such as external line absorbers; inorganic fillers such as talc, silica, calcium carbonate, glass fibers; coloring agents; flame retardants; flame retardant aids; antistatic agents; plasticizers; near infrared absorbers; lubricants; fillers , And any polymer other than the alicyclic structure-containing polymer having crystallinity, such as a soft polymer; and the like. In addition, one type of optional component may be used alone, or two or more types may be used in combination at an arbitrary ratio.

[2. Film manufacturing equipment]
The film manufacturing apparatus of the present embodiment includes a transfer device that transfers a film, and the above-described transfer auxiliary jig of the present embodiment. The film manufacturing apparatus according to the present embodiment includes the above-described transfer auxiliary jig 100 in the film transfer path. By providing the transport assist jig 100 of the present embodiment on the transport route of the film, it is possible to smooth the wrinkles of the film generated during transport and correct the transport position to an appropriate position. The conveyance assisting jig 100 can be installed at an end portion in the width direction of a film in, for example, a film stretching machine, a trimming device, and a film conveyance device.

  The film manufacturing apparatus of the present embodiment, together with the transport assist jig, is a device for detecting the traveling position of the film (position detecting device), and the ejection amount and ejection speed of the gas ejected from the gas ejection holes provided in the groove portion. And an adjusting device for adjusting at least one of them. When the position detection device detects an abnormality in the running position of the film, the adjustment device adjusts at least one of the ejection amount and ejection speed of the gas ejected from the gas ejection hole to adjust the film tension. The transport position and the running position of the film can be corrected. In the present invention, the device for detecting the traveling position of the film and the adjusting device for adjusting at least one of the ejection amount and ejection speed of the gas ejected from the gas ejection holes provided in the groove are arbitrary devices.

[3. Actions and effects of this embodiment]
Hereinafter, the operation and effect of the film manufacturing apparatus including the conveyance assisting jig of this embodiment will be described.
The film 10 transported to the installation position of the transport auxiliary jig 100 is gripped by the gripping members 110 and 120. The film 10 can be grasped by disposing the film 10 between the first grasping portion 111 of the grasping member 110 and the second grasping portion 121 of the grasping member 120 and sandwiching the film 10. In the state where the film 10 is held by the holding members 110 and 120, the film 10 and the holding members 110 and 120 are not in contact with each other as shown in FIG. It is possible to prevent the occurrence of scratches and the like. In addition, in the present embodiment, the transport assisting jig 100 includes the spacing holding member 150 that holds the spacing between the first gripping portion 111 and the second gripping portion 121. Therefore, even when the film 10 is gripped, The gripping part 111 and the second gripping part 121 are arranged at a predetermined interval, and the contact between the film 10 and the gripping members 110 and 120 is effectively suppressed.

  When the film 10 is held by the holding members 110 and 120, the groove 115 is covered with the film 10, so that the gas ejected from the gas ejection hole 115A into the groove 115 is directed toward the discharge hole 115B (direction indicated by A3). ) (See FIG. 8). When such a gas flow is generated, resistance to the gas flow is generated on the surface of the film 10, and the film 10 remains in contact with the gripping members 110 and 120 in the longitudinal direction of the gripping member 110. The film is pulled in a parallel direction (direction parallel to the width direction of the film 10).

Next, the gripping members 110 and 120 are tilted, and as shown in FIGS. 5 and 6, the angle of the surface of the film 10 is θ1 with respect to the direction parallel to the transport direction (direction shown by the line XX in the drawing). When the film 10 is changed to θ2, a force is applied to the film 10 so that the wrinkle of the film 10 can be extended and the transport position can be corrected. In this way, by changing the angle of the film 10, it is possible to increase or decrease the number of the groove portions 115 covered by the film 10 and the area of the groove portions 115. Therefore, the magnitude of the force applied to the film 10 (film tension) can be adjusted. Is possible.
The film 10 is gripped by the gripping members 110 and 120 in a non-contact state, the angle is changed, and force is applied to the film 10 to prevent the occurrence of scratches or the like due to the contact between the film 10 and the member. At the same time, the wrinkles of the film being conveyed can be removed, and the film conveying position can be corrected.

  As described above, according to the present embodiment, the transport assisting jig 100 includes the gripping members 110 and 120 that grip the film 10 from positions facing each other in the thickness direction of the film 10, and the gripping members 110 and 120 are the film gripping members. Since it is a member capable of changing the angle of the film 10 while gripping the film 10 in a non-contact state, it is possible to prevent the film 10 from being scratched or the like and to smooth out wrinkles generated in the film being conveyed, and It is possible to provide a transport auxiliary jig and a film manufacturing apparatus capable of correcting the transport position of the film.

  In addition, according to the present embodiment, the gripping members 110 and 120 include the hinge 133 that connects the first gripping portion 111 and the second gripping portion 120, so that when gripping the film 10, the gripping member 110, 120 The workability is excellent because it is only necessary to dispose and sandwich it between the first grip 111 and the second grip 120.

  Further, in the present embodiment, the film manufacturing apparatus includes a device that detects the traveling position of the film, and an adjusting device that adjusts at least one of the ejection amount and ejection speed of the gas ejected from the gas ejection holes. Therefore, according to the present embodiment, when the position detecting device detects an abnormality in the traveling position of the film during the transport of the film 10, the adjusting device detects at least the ejection amount and ejection velocity of the gas ejected from the gas ejection hole. Since one side is adjusted and the film tension is adjusted, it is possible to correct the transport position of the film by changing the angle of the film without adjusting the number of grooves covered by the film and the area of the grooves. There is excellent workability.

[Other Embodiments]
(1) In the above-described embodiment, the gripping member having the groove formed in the direction perpendicular to the film transport direction is shown, but the mode of the gripping member is not limited to this. The gripping member may have no groove, or the gripping member may have a groove forming direction of less than 90 ° with respect to the film transport direction.

  (2) In the above embodiment, the gripping member has the first gripping part and the second gripping part which are arranged at positions facing each other in the thickness direction of the film, and the first gripping part and the second gripping part. Although the embodiment has been shown to be connected via a hinge, the present invention is not limited to this. For example, the two gripping members may not be connected, and one gripping member may be fixed to the film transport path, and the other gripping member may be movable in a direction approaching the one gripping member.

  (3) In the above-described embodiment, the conveyance assisting jig is provided with the spacing holding member that holds the spacing between the first gripping portion and the second gripping portion, but the spacing holding member is not provided. It may be a mode.

  (4) In the above-described embodiment, there is provided a film manufacturing apparatus including a device that detects the traveling position of the film and an adjusting device that adjusts at least one of the ejection amount and ejection speed of the gas ejected from the gas ejection holes. Although shown, the invention is not so limited. The film manufacturing apparatus of the present invention may include only one of the apparatus for detecting the traveling position of the film and the adjusting apparatus, or may not include both of them.

  (5) In the above-described embodiment, a member having an arch-shaped side view is used as the grip member, but the shape of the grip member is not limited to this. Examples of the gripping member include a gripping member having a circular cross-sectional shape in the direction parallel to the transport direction (a cylindrical member as a whole), a gripping member having a fan-shaped cross-sectional shape in the direction parallel to the transport direction, and a parallel to the transport direction. A gripping member or the like having an elliptical cross section in any direction may be used.

  (6) In the above embodiment, the gripping member provided with the groove is shown as the flow path for flowing the gas in the direction parallel to the width direction of the film, but the present invention is not limited to such a mode. For example, a gripping member may be provided with a hole that communicates from one end to the other end in the longitudinal direction of the gripping member as a flow path together with the groove of the above-described embodiment or instead of the groove.

10 ... Film 100 ... Transport auxiliary jig 110, 120 ... Gripping member 111 ... First gripping part 112 ... One end of gripping member 113 ... Other end of gripping member (end on hinge side)
115 ... Groove 115A ... Gas ejection hole 115B ... Exhaust hole 121 ... Second gripping part 122 ... One end of gripping member 123 ... Other end of gripping member (end on hinge side)
130 ... Support member 131 ... 1st support part 132 ... 2nd support part 133 ... Hinge 150 ... Interval holding member

Claims (8)

A transport auxiliary jig that is provided in the transport route of the film and assists in transporting the film,
From a position facing in the thickness direction of the film, a grip member for gripping the film is provided,
The gripping member is a member capable of changing the angle of the portion of the film gripped by the gripping member with respect to the direction parallel to the transporting direction of the film while gripping the film in a non-contact state. Auxiliary jig.   The conveyance assisting jig according to claim 1, wherein the holding member is a member having a hole for ejecting a gas that holds the film in a non-contact state on the surface.   The conveyance assisting jig according to claim 1, wherein the gripping member has a flow path through which gas flows in a direction parallel to the width direction of the film. The gripping member has a groove formed on the surface in a direction perpendicular to the transport direction of the film,
4. The groove portion has a gas ejection hole for ejecting gas into the groove portion, and an exhaust hole for ejecting the gas ejected from the gas ejection hole to the outside of the groove portion. The transportation assistance jig described in. The gripping member has a first gripping portion and a second gripping portion arranged at positions facing each other in the thickness direction of the film,
The transport assisting jig according to claim 1, further comprising a hinge that connects the first grip portion and the second grip portion.   The conveyance assisting jig according to claim 5, further comprising a spacing member that holds a spacing between the first grip portion and the second grip portion.   An apparatus for manufacturing a film, comprising the transfer auxiliary jig according to claim 1 in a transfer path of the film. The grasping member of the conveyance assisting jig has a groove portion formed on the surface in a direction perpendicular to the conveyance direction of the film,
The groove portion has a gas ejection hole for ejecting gas into the groove portion, and a discharge hole for discharging the gas ejected from the gas ejection hole to the outside of the groove portion,
The film manufacturing apparatus, a device for detecting the running position of the film,
An adjusting device for adjusting at least one of an ejection amount and an ejection speed of the gas ejected from the gas ejection hole, the film manufacturing apparatus.

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