WO2007029386A1 - 管状樹脂フィルムの切断巻取り装置および切断巻取り方法 - Google Patents
管状樹脂フィルムの切断巻取り装置および切断巻取り方法 Download PDFInfo
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- WO2007029386A1 WO2007029386A1 PCT/JP2006/311299 JP2006311299W WO2007029386A1 WO 2007029386 A1 WO2007029386 A1 WO 2007029386A1 JP 2006311299 W JP2006311299 W JP 2006311299W WO 2007029386 A1 WO2007029386 A1 WO 2007029386A1
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- Prior art keywords
- film
- cutting
- tubular
- scraping
- resin film
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
- B26D3/162—Cutting rods or tubes transversely cutting tubes obliquely
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
- B29C55/285—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation by using internal mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
- B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/112—Section geometry
- B65H2701/1121—Section geometry shape
- B65H2701/11214—Section geometry shape tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Definitions
- the present invention relates to a cutting and scraping device and a cutting and stripping method for a tubular resin film made of thermoplastic resin as a raw material. More specifically, the present invention relates to optical films such as retardation films and polarizing films, shrink films, laminate films, packaging films such as NORA films, die cinder films, carrier tapes, process films, and printing films.
- Tubing that can be used for industrial films, such as film width, and the orientation angle of the resin can be adjusted arbitrarily, and can be wound with high accuracy without film scratches, winding deviations, curling wrinkles, and winding bumps.
- thermoplastic resin films are relatively inexpensive and have excellent mechanical properties, chemical resistance, transparency, water vapor permeability, etc. , Agriculture, industry, food, medicine and so on.
- thermoplastic resin films in the optical field.
- the thermoplastic resin include forces such as polycarbonate, cyclic polyolefin, polyethylene, and polypropylene.
- polycarbonate and cyclic polyolefin have relatively good light transmittance, and unstretched products include diffusion sheets, It is suitably used for prism sheets, antireflection films, retardation film originals and the like.
- extension treatment uniaxial extension or biaxial extension
- optical anisotropy can be imparted.
- a film prepared from a thermoplastic resin to which such orientation is imparted can be suitably used as a retardation film for use in a liquid crystal display (LCD).
- LCD liquid crystal display
- thermoplastic resin film A solution casting method in which a resin solution in which a resin is dissolved in a solvent is cast on a glass plate or the like, a T-die extrusion method in which a molten resin is extruded by an extruder and cooled with a chill roll to form a film.
- a tube extrusion method in which molten resin is extruded into a tubular shape by an extruder, and an inflation extrusion method in which molding is performed while applying air pressure to the inside of a tubular extruded resin are used.
- the film width of the thermoplastic resin film is determined by the die width in the T-one die extrusion method and the die width for solution casting in the solution casting method. It is difficult to deal with products with different film widths in one die. When the die width and the product width are different, an unnecessary part is generated. The Dickel method can forcibly narrow the film width. There is a problem that gel is easily generated due to retention of the resin. As for the inflation extrusion method, the film width can be changed with one annular die by changing the blow ratio, but the stretched state changes depending on the blow ratio, so the same quality may not always be obtained. Absent. In the tube extrusion method, the force that can change the tube diameter by changing the diameter of the sizing tube is different because the stretching conditions are different, so it is not always possible to obtain the same quality. It is difficult to adjust the width.
- a long film manufactured by the T-die extrusion method usually has a cooling rate at both ends of the film that is faster than that at the center of the film. Therefore, it cannot be a full width product, and both end portions (ears) of the film are removed. If the thickness is not uniform in the TD direction, the winding shaft may be reciprocated (oscillated) in the axial direction in order to avoid winding humps at the time of cutting and to avoid this immediately. Also in this case, both ends of the film are cut in order to make the film width uniform, resulting in a decrease in product yield.
- the film ends are usually removed after being folded and taken out. The yield is reduced.
- thermoplastic tubular resin film is folded and wound once in a roll or the like without being cut, and then rolled out while being rotated.
- an insertion member or the like is inserted into the oil film to recover the shape into a tubular shape, and the film is cut and scraped by a fixed cutting means (see, for example, Patent Documents 3, 4, and 5).
- thermoplastic tubular resin film is advanced while rotating, and then the uniaxial stretching is performed in the traveling direction, and then the rotating tubular resin film is stationary.
- a method for producing an obliquely oriented thermoplastic resin film by dividing vertically with a knife see, for example, Patent Document 6).
- the tubular die film is cooled once, and after reheating, the tubular coagulant film is twisted while maintaining the tubular shape to produce an obliquely oriented thermoplastic resin. It has been proposed that this can be done (for example, see Patent Document 7).
- the tubular die is fixed, a mandrel having a suction slit is provided inside the tubular resin film, the tubular resin film is brought into contact with the mandrel by suction, and the mandrel is rotated. And twisting the tubular resin film.
- the thickness unevenness of the tubular resin film can be greatly reduced, and a resin film product having a small, uniform and flat surface can be produced, and a porous mandrel It is proposed that a resin film product with high quality and small unevenness in thickness unevenness can be produced by drawing the film through a stretched part and a holding part produced by And Patent Documents 8 and 9).
- the cutting device has a longitudinal (MD) direction of the tubular resin film. It rotates as a rotation axis. By controlling the rotation speed at this time, a film having an arbitrary width can be manufactured.
- the tubular resin film can be oriented in the MD direction or the circumferential (TD) direction. Therefore, when the film is cut by the above-mentioned cutting apparatus, a film having an arbitrary orientation is obtained.
- a method is known in which a cutting device is rotated about a tubular resin film longitudinal (MD) direction as a rotation axis to produce a film having an oblique orientation (see, for example, Patent Documents 10 and 11).
- the tubular resinous film is folded and rolled up once without being cut. Then, the tubular resinous film is unwound and unwound, and an insertion member is inserted inside the tubular resinous film to fix the shape while restoring the tubular shape.
- folding folds are generated once the film is folded, so that a high-quality film cannot be obtained.
- the tubular film is moved on the insertion member while being rotated, wrinkles are likely to occur when the film is thin.
- thermoplastic tubular resin film By rotating the annular die, the thermoplastic tubular resin film is advanced while rotating, uniaxially stretched in the advancing direction, and rotated so that the tubular resin film is stationary, and the knife is used.
- the method of vertically dividing the film the film does not fold once, so no creases occur.
- This method is characterized by rotating an annular die in order to cut the tubular film into a spiral shape.
- thermoplastic resin in which an annular die force tubular resin film is extruded, cooled once, reheated, and then twisted with the tubular resin film maintained while maintaining the tubular structure.
- scratches may occur on the film surface, or when the heated tubular resin film is twisted, the film will be wrinkled. There is a possibility of entering.
- it is difficult to obtain a high-quality tubular film even in this method because it is difficult to control the stretching conditions in order to achieve a uniform thickness and uniform retardation across the plane of the film.
- Patent Document 1 Japanese Patent Laid-Open No. 4-164626
- Patent Document 1 A JP 2004-20701 A
- Patent Document 3 Japanese Patent Laid-Open No. 10-226023
- Patent Document 4 Japanese Patent Laid-Open No. 51-55368
- Patent Document 5 Japanese Patent Laid-Open No. 55-59407
- Patent Document 6 Japanese Patent Publication No. 40-5319
- Patent Document 7 Japanese Unexamined Patent Publication No. 47-34656
- Patent Document 8 WO2004-067260
- Patent Document 9 WO2004-067266
- Patent Document 10 Japanese Unexamined Patent Publication No. 2003-215320
- Patent Document 11 Japanese Patent Laid-Open No. 55-161619
- the present invention has been made in view of the above problems, and the film width and the orientation angle of the resin that can not be achieved by the conventional cutting and wetting apparatus and method can be arbitrarily adjusted.
- a cutting and removing device for a tubular resin film and a method for cutting and removing the same which can be wound with high accuracy without scratches, winding deviations, winding wrinkles and humps, and the entire device is compact.
- the cutting and scoring method of the present invention is used, a resin film having an arbitrary orientation angle can be produced with good yield, and can be suitably used for producing a retardation film.
- a first characteristic configuration of the present invention is a cutting and scraping device for spirally cutting a tubular resin film to remove a long film, and has a cutting member for cutting the tubular resin film.
- a fluid exudation device comprising: a cutting device, a scooping device for scooping up the cut long film, and a guide roll for guiding the cut long film to the scavenging device, wherein the guide roll exudes fluid.
- the cutting member and the guide roll have a mechanism for rotating in the circumferential direction of the tubular resinous film.
- the traveling direction of the long film after cutting can be appropriately changed by the guide roll.
- positions a winding apparatus increases. For this reason, it is possible to prevent the conventional apparatus from becoming enormous.
- the guide roll guides the long film after cutting to the scooping device, it is possible to prevent wrinkling and curling due to the positional deviation of the long film.
- the guide roll has a fluid leaching mechanism that oozes the fluid, the surface force of the guide roll can also ooze the fluid. For this reason, the long film and the guide roll come into contact with or close to each other through the fluid, and the friction between the long film and the guide roll is reduced. Reduced. As a result, the film can be smoothly transported by suppressing the scratching of the film and the fluctuation of the film.
- a second characteristic configuration of the present invention is that the guide roll is made of a porous material.
- the guide roll By constituting the guide roll with a porous material, fluid can be uniformly exuded from the surface thereof. For this reason, there is almost no local variation in the amount of fluid exudation. Therefore, the non-contact property between the resin film and the guide roll is further increased. As a result, the film can be more effectively prevented from being scratched, caught, or wobbled, and the film can be transported smoothly.
- a third characteristic configuration of the present invention is that the fluid is a gas.
- a fourth characteristic configuration of the present invention lies in that a core member is provided inside the tubular resin film.
- the shape of the tubular resin film can be surely maintained when the tubular resin film is conveyed and cut. For this reason, since it can prevent that a film deform
- a fifth characteristic configuration of the present invention is that the core member has a mechanism for exuding fluid.
- the core member has a mechanism for exuding the fluid, so that the fluid can be exuded from the surface of the core member. For this reason, the non-contact property between the tubular resin film and the guide roll is increased, and the friction between the tubular resin film and the guide roll is reduced. As a result, it is possible to suppress flaws, etc., of the tubular resin film from being scratched and to smoothly transport the film.
- a sixth characteristic configuration of the present invention is that the core member is made of a porous material.
- the core member is made of a porous material.
- a seventh characteristic configuration of the present invention is that the fluid is a gas.
- An eighth characteristic configuration of the present invention is that the core member has a mechanism for changing a diameter in a circumferential direction of the tubular film.
- the diameter of the core member can be changed, so that the apparatus can be applied to tubular resin films having various diameters. Further, the tension can be adjusted according to the material of the tubular resin film. As a result, the range of applicability of the apparatus can be expanded.
- a ninth characteristic configuration of the present invention is that the scoring shaft of the scoring device and the central axis of the tubular resinous film coincide with each other.
- a tenth characteristic configuration of the present invention is that the scoring device has a mechanism for rotating in a circumferential direction of the tubular resin film.
- the scoring device can be rotated in the circumferential direction of the tubular resin film, so that the relative position between the scoring device and the cutting device can be kept constant. As a result, the long film after cutting can be surely wound on the winding device.
- An eleventh characteristic configuration of the present invention lies in that the scissoring device includes an exchanging device capable of continuously exchanging the wound film roll.
- a twelfth characteristic configuration of the present invention is that two or more of the cutting member and the guide roll are provided.
- the film width of the long film is automatically set by the rotational angular speed at which the cutting device rotates in the circumferential direction of the tubular resin film and the transport speed of the tubular resin film. It is in the point provided with the mechanism to adjust with.
- the fourteenth feature of the present invention is that the cutting and wetting device further comprises two or more conveying devices on the circumference of the tubular resinous film for conveying the tubular resinous film in the longitudinal direction.
- the tubular resin film can be uniformly conveyed in the radial direction.
- a fifteenth characteristic configuration of the present invention is a cutting and scraping method for cutting a tubular resinous film in a spiral shape to remove a long film, and the cutting having a cutting member for cutting the tubular resinous film.
- the device rotates in the circumferential direction of the tubular resin film, cuts into a spiral long film, and the guide roll rotates in the circumferential direction of the tubular resin film while exuding fluid. And a step of guiding the cut long film to a scraping device and a step of scraping the long film by the stripping device.
- the guide roll guides the long film after cutting to the scooping device, so that it is possible to prevent winding and curling due to the positional deviation of the long film. Further, since the guide roll oozes out the fluid, the long film and the guide roll come into contact or close to each other through the fluid, and friction between the long film and the guide roll is reduced. As a result, it is possible to suppress the film from being “hooked” and wobbling, and to smoothly transport the film.
- a sixteenth characteristic configuration of the present invention is that the film of the long film is controlled by controlling a rotational angular speed at which the cutting device rotates in a circumferential direction of the tubular resin film and a conveying speed of the tubular resin film. The point is to adjust the width.
- a seventeenth characteristic configuration of the present invention is the arrangement of the guide roll and / or the scraping device.
- the adjustment is made in conjunction with the rotational angular velocity of the cutting device and / or the conveyance speed of the tubular resin film.
- the cutting and scraping device described in this specification is connected to the extrusion molding device and / or the stretching device described in Patent Documents 8 and 9, and after producing a tubular resin film, continuously cut and scrapes.
- the tubular resin film production apparatus used in the present invention is not limited to the tubular resin film production apparatus disclosed in Patent Documents 8 and 9.
- the cutting and scraping device of the present invention includes a cutting device 2 that spirally cuts the tubular resin film la, at least one guide roll 3, and a scraping as in the embodiment shown in FIG. Device 4.
- a long film lb of any width can be manufactured by adjusting the rotation speed at which the cutting device 2 rotates the central axis 5 of the tubular resinous film la while keeping the conveyance speed of the tubular resinous film la constant. .
- the rotation speed of the cutting device 2 can be reduced. By making adjustments, a long film with an arbitrary orientation angle can be manufactured. Can be built.
- the guide roll 3 can freely change the traveling direction of the film, so that the degree of freedom of the position where the scoring device 4 is arranged is increased. Becomes easier.
- the film can be wound without any winding deviation or curl.
- the scraping shaft of the scraping device 4 can be made horizontal with respect to the floor surface.
- the reeling axis represents the rotation axis of the roll for winding the film.
- the shaving shaft of the tacking device 4 can be inclined vertically or obliquely with respect to the floor surface. In the case of Fig.
- a core member 7 having a porous material force is provided inside the tubular resin film la, and the guide roll 3 is also made of a porous material 3x. For this reason, by exuding each of the porous material fluids, the contact between the film and the guide roll or between the film and the core member can be reduced during film conveyance, so that film scratches can be suppressed.
- Figure 1 Enlarged view P shows fluid leaching (Q: porous material, R: fluid flow direction, S: film).
- the long film lb is cut in a spiral shape, and therefore the position of uneven thickness in the width direction is shifted in the long film lb after cutting. Even after the film is wound into a roll, Can be prevented.
- Examples of the cutting member used in the cutting device 2 include a metal blade, a ceramic blade, a heating element such as a two-chromium wire, a film such as an ultrasonic cutting device, a high-frequency cutting device, and a water jet cutting device.
- a contact-type cutting member that cuts the film may be a non-contact-type cutting member that cuts the film in a non-contact manner, such as a laser cutter.
- an inexpensive and durable metal blade is preferably used.
- As a metal blade there are various forms such as a normal cutter blade or a cutter that rotates while rotating a round blade.
- the blade tip is preferably as sharp as possible and free from chipping.
- Non-contact cutting members include carbon dioxide laser, YAG laser, excimer laser, infrared laser, UV laser, semiconductor laser, etc. Carbon dioxide laser with relatively low cost and high cutting ability A laser cutter using is preferably used.
- the cutting member is a contact-type cutting member such as a metal blade, a ring in which the metal blade is disposed along the circumference of the tubular resin film la, etc. And turning on the ring using a motor or the like. At this time, the tubular resin film la is conveyed by the conveying device 6.
- the conveying speed, the turning speed of the metal blade, and the angle of the metal blade can be adjusted accurately and instantaneously.
- the electric drive system such as the motor is fixed as much as possible, the rotating ring or the like is configured as one gear, and the metal blade is rotated so that the wiring of the motor or the like is not entangled.
- the angle adjustment of the metal blade can be simplified, so it is preferable to use knotter drive.
- the direction of the laser can be freely changed by changing the direction of the prism through which the laser passes by remote control or the like. Because it is possible, it is possible to use tubular grease without directly driving the laser body. Film la can be cut spirally.
- the apparatus itself has a complicated configuration, and there is a danger that the laser hits the human body, so safety measures are necessary.
- the guide roll 3 is preferably one that can transport the film without damage.
- the guide roll rotates (rotates) around the roll longitudinal direction, the surface free energy of the contact portion with the film is small, and a fluorine-based resin material such as Teflon (registered trademark)
- Teflon registered trademark
- examples include a structure in which a fluid such as a gas or a liquid can be oozed, a structure in which a slit is formed on the surface of the guide roll 3, and a structure in which a fluid can be supplied.
- a structure in which the fluid can be freely changed in the advancing direction in which scratches are unlikely to occur on the film surface and a fluid oozes out is preferable, and a structure constituted by a porous material force is preferable.
- the holes and slits of the porous material described above constitute a fluid leaching mechanism.
- the guide roll 3 is connected to fluid supply means (not shown) for supplying fluid to the guide roll, such as an air compressor or a pump, for example, by a flexible tube (not shown), a rotary joint (not shown), or the like.
- the guide roll is only rotating about the roll longitudinal direction, if the film traveling direction is not perpendicular to the roll longitudinal direction, it will prevent the roll film from proceeding in reverse. May cause film scratches. (Because the film traveling direction and the guide roll rotation direction are different, the film does not move smoothly when the film and the guide roll are in contact with each other, causing wrinkles and scratches on the film.) However, the guide roll 3 By exuding the fluid from the surface, the non-contact property between the resin film lb and the guide roll 3 can be improved, so that the above-mentioned problem can be solved.
- water, alcohol, ester, low boiling point liquid containing 100 ° C or less including carbon at the mouth, air, nitrogen, helium and other gases are preferable, but cheap water or impurities in the fluid on the film surface U, who prefers air.
- the guide roll 3 preferably includes a porous material as a constituent element.
- the fluid can be exuded evenly by the surface force, so the amount of fluid exudation locally varies. Ki almost disappears. Accordingly, the non-contact property between the resin film lb and the guide roll 3 is further increased, so that the film can be prevented from being scratched, caught, or wobbled, and the film can be smoothly conveyed.
- the material is not particularly limited as long as the fluid can be leached uniformly, such as metal or plastic.
- porous materials include metallic porous materials (porous powder sintered metal, sintered wire mesh, etc.), inorganic porous materials (porous ceramic, etc.), filter materials, and numerous holes.
- Metal, organic porous materials fluorine-based resin such as Teflon (registered trademark), silicon, etc.). It is preferable to adjust the pore diameter, thickness, etc. of the porous material so that a uniform fluid leaching state can be achieved. In view of durability, maintainability, and uniformity of fluid exudation, porous metal materials are preferred, and porous powder sintered metal and sintered metal mesh are more preferred.
- the fluid exuding from the guide roll 3 exudes to a necessary portion by a necessary amount, that is, to the extent that contact between the film lb and the guide roll 3 is eliminated.
- the fluid that exudes from the guide roll is preferable because it is the cheapest aerodynamic force.
- FIG. FIG. 4 (b) An example of the structure of the guide roll 3 is as shown in FIG. FIG. 4 (b) includes the hollow cylindrical hollow material 3x shown in FIG. 4 (a) and two disc-shaped lids 3y.
- the fluid can be evenly leached from the porous material 3X by introducing the fluid with either one of the lid forces.
- a shutter or the like can be provided on the surface of the porous material 3x so that a part of the fluid does not leach out. By doing so, the fluid can be used effectively.
- the porous material 3x can be divided into a plurality of pieces and the fluid can be leached independently. By independently controlling the fluid flow rate, fine adjustment of the film transport can be performed.
- a film lb passing through the guide roll 3 can be centered only by controlling the fluid flow rate.
- the diameter of the cylindrical connecting member 3z is smaller than the diameter of the porous material 3x, and the bottom surface portion in contact with the connecting member 3z of the porous material 3x has a rounded corner. This is preferable in terms of preventing damage.
- the guide roll 3 preferably rotates (revolves) about the central axis 5 of the tubular resin film. That is, by rotating (revolving), it is possible to maintain the tension between the resin film lb and the scooping device 4, so that the resin film can be wound at a high speed that is less likely to cause wrinkles and misalignment.
- the degree of freedom in the film traveling direction is increased, which makes it easier to design the cutting and scraping device.
- Fig. 3 (a) by using two guide rolls, it is possible to bring the weaving device 4 closer to the central axis 5 of the tubular resin film, and to reduce the floor area on which the weaving device is installed. Can do.
- the angles of the guide rolls 3a and 3b are interlocked. For example, in Fig.
- the distance between the cutting device 2 and the guide roll 3a can be shortened.
- the vibration of the film at the time of cutting can be suppressed, and the cutting accuracy such as the straightness of the film cut surface is improved.
- the angles of the guide rolls 3a, 3b and 3c are linked.
- the rotational angular velocity of the cutting device 2 and / or the conveying speed of the tubular resin film la are adjusted.
- the transport position of the cut long film lb also changes, and therefore it is preferable to adjust the arrangement of the guide rolls 3 in conjunction with each other in order to prevent winding deviation and curling.
- the angle and position of the guide roll 3 can be automatically adjusted. For example, when the cylindrical diameter of the tubular resin film or the helical pitch of the film to be cut in a spiral shape is changed during the cutting and weaving of the present invention, the running position of the film changes, so that the wound film May cause misalignment or curl.
- angle and position of the guide roll 3 can be automatically adjusted in response to fluctuations in the film travel position, film misalignment and curling can be prevented. Also, stress in the width direction of the film It is more preferable that the angle and position of the guide roll 3 can be changed by measuring and feeding back so that the stress in the width direction becomes uniform during operation, in order to prevent the film from being wound and wrinkled.
- the wrinkle removal device 4 includes, for example, a contact roll for preventing the air from getting caught in the air, an expander roll for eliminating film wrinkles, a pinch roll for cutting the film tension, and a dancer roll for controlling the stress applied to the film.
- a cutting device for cutting in the width direction of long film, and removing chips when cutting the film. It is preferable to have a dust collector that can be used. Further, it is more preferable that a film surface modifying device such as a corona discharge device or an antistatic device is provided.
- the running position of the film changes, so that the winding roll is wound.
- Measurement force such as film edge position and stress in the film width direction It is preferable that the film travel position is obtained and the position of the scraping device 4 can be adjusted arbitrarily and automatically in response to this.
- the wound film roll can be continuously replaced.
- the replacement scraping roll 10 is arranged in parallel with the scraping roll 4.
- the turret board 9 is rotated, and at the same time, the positions of the take-up roll 4 and the replacement take-up roll 10 are exchanged.
- the film is cut with a cutting machine (not shown) and the roll is exchanged.
- Figures 9 (b) and (c) can be exchanged in the same way. It is also possible to use an accumulator and continuously change the film roll.
- FIG. 10 (a) by providing two cutting devices having cutting members, two resin films can be obtained at the same time. At this time, if there are two cutting members, one cutting device may be used. By changing the distance between the cutting devices 2a and 2b on the circumference of the tubular resin film la, the width of the film wound up by the scooping devices 4a and 4b can be changed.
- the guide roll needs more than the number of cutting members, and it is preferable to have two or more guide rolls in Fig. 10 (a). Yes. Further, it is preferable that the weaving devices 4a and 4b and the guide rolls 3a and 3b rotate at the same speed at the center of the central axis 5 of the tubular resinous film. Further, as shown in FIG. 10 (b), by providing three cutting devices 2 having cutting members on the circumference of the tubular resin film la and three guide rolls (not shown), Three resin films can be obtained simultaneously.
- the angled force of the cut long film lb with respect to the core member 7 exceeds 0 ° and is 360 ° or less. As shown in FIG. 1, it is preferable to provide a core member 7 inside the tubular resin film la.
- T is the point to be cut by the cutting device 2 provided with T, and the cutting line consisting of the end face of the cut long film lb changes into a straight line from the curved line (that is, the cutting line that is the end face force of the long film lb)
- the center angle ZTOU of the arc containing the cut long film lb is shown when U is the point where the core member force is separated.
- the distance between the core member 7 and the tubular resin film la may fluctuate at the point T where the cutting member of the tubular resin film la is cut.
- the linearity is lowered, which can cause winding deviation.
- the effective width of the film is reduced because the film width is not constant.
- ZTOU exceeds 360 °, the cut long film lb itself may overlap depending on the shape of the core member 7, which may hinder the conveyance of the film and increase the size of the device. It is not preferable. More preferably, the ZTOU is from 5 ° to 180 °, most preferably from 30 ° to 90 °.
- the core member 7 preferably includes a porous material as a constituent element. This will make the table Fluid can be uniformly exuded from the surface. As a result, since the non-contact property between the resin film lb and the core member 7 is further increased, the film can be prevented from being scratched, caught, or wobbled.
- porous materials include metallic porous materials (porous powder sintered metal, sintered wire mesh, etc.), inorganic porous materials (porous ceramic, etc.), filter materials, and metals with numerous holes.
- Organic porous materials fluorine-based resin such as Teflon (registered trademark), silicon, etc. It is preferable to adjust the pore diameter, thickness, etc. of the porous material so that a uniform fluid leaching state can be achieved.
- porous metal materials are preferred, and porous powder sintered metal and sintered metal mesh are more preferred.
- the shape of the core member 7 may be divided perpendicular to the central axis direction of the tubular resin film, as shown in FIGS. 5 (a) to (d). Since the flow rate of each fluid can be controlled by dividing the core member 7 vertically, the fluid can be used effectively.
- the position of the cutting member of the cutting device 2 may be installed at a part facing the core member part as shown in FIGS. 5 (a) and 5 (c), for example, and FIGS. 5 (b) and 5 (d) As shown in Fig. 5, it does not matter if it is installed in a portion facing the gap between the core member and the core member divided vertically.
- the core member 7 may be divided into a plurality of parts in parallel with the central axis 5 of the tubular resin film. By dividing in parallel, the volume and weight of the core member 7 can be reduced, so that the member cost can be reduced.
- the core member 7 may have a structure in which the circumferential diameter can be changed, or a plurality of these may be used.
- the circumferential diameter by adjusting the circumferential diameter, the distance between the tubular resin film la before cutting and the core member 7 shown in FIG. 5 and the distance between the tubular resin film lb after cutting and the core member 7 can be shortened. Therefore, film vibration at the time of conveyance and cutting can be suppressed. Furthermore, since the conveyance stability is improved, the linearity of the cut surface of the film is improved, and curling and film meandering can be prevented.
- a plurality of divided core members 7 are arranged around the center bar 8, and the distance between the center bar and the core member is changed to thereby change the distance between the center bar and the core member shown in FIG. 6a.
- Grease film la and core member The distance to 7 can be shortened. Furthermore, since the distance between the tubular resin film lb after cutting and the core member 7 can be shortened, film vibration during conveyance and cutting can be suppressed. Since the conveyance stability is improved, the linearity of the film cut surface is improved, and curling and film meandering can be prevented.
- the transport device 6 is provided with multi-point rollers on the inner surface and / or outer surface circumferential direction of the tubular resin film la so that the film can be transported while maintaining the substantially cylindrical shape of the film.
- a tubular resin film is conveyed by driving a roller and rotating the roller in contact with the film. Since the roller used in the transport device 6 is in direct contact with the surface of the tubular resin film la, it is desirable that the roller be made of a flexible material (for example, silicone rubber) that does not damage the surface. In addition, it is desirable that the rollers are arranged so as to come into contact with a plurality of points at equal intervals around the periphery of the tubular resin film la.
- the number of roller arrangements in the circumferential direction is preferably 2 or more, more preferably 4 or more, and most preferably 8 or more. It is also possible to arrange them in multiple stages. Instead of the non-driven inner roller, a porous member capable of air leaching can be used.
- the conveyor device 4 may be used also as the scraping device 4.
- the cutting and scraping method of the present invention includes a step of cutting a tubular resin film in a spiral shape, a step of guiding the cut film using a guide roll to a scraping device, and a step of scraping by a scraping device. It is characterized by including.
- the guide roll 3 can freely change the traveling direction of the film, so the degree of freedom of the position where the scraping device 4 is arranged increases.
- the apparatus design can be facilitated, and the film can be taken up without winding deviation and wrinkles.
- the differential force C1 It is preferable that it is less than 0.1 times the average value of C2 and C2. Further, the difference between C1 and C2 is almost 0 is preferred. If the differential force between C1 and C2 exceeds 0.1 times the average value of C1 and C2, the transported film may gradually twist, cause misalignment and curl.
- the winding device 4 rotates (revolves) about the central axis 5 of the tubular resin film.
- the differential force between the maximum value and the minimum value of Cl, C2, and C4 is 0.1 of the average value of Cl, C3, and C4. It is more preferable that Cl, C2, and C4 are almost the same. If the differential force between the maximum and minimum values of Cl, C2, and C4 exceeds 0.1 times the average value of Cl, C3, and C4, the transported film gradually twists, curls, and curls. There is a possibility of causing it.
- the take-up tension varies depending on the film material and thickness, it is generally preferred that the film's mechanical strength (such as tensile stress) be between 1Z2 and 1Z50. preferable.
- the rotational angular velocity of the cutting device 2 shown in FIG. 1 around the central axis 5 of the tubular resin film la and the conveying speed of the tubular resin film conveying device 6 are adjusted.
- the film traveling position changes. Therefore, any one of the inclination and position of the guide roll 3 and the position and inclination of the scraping device is selected. Need to be changed.
- the traveling position of the cut film lb is raised to the film feeding side as the cutting angle ⁇ is increased.
- the position of the guide roll 3 and the wrinkle removal device 4 is also moved up to the film feed side, or the height of the guide roll 3 and the wrinkle device 4 is kept constant, respectively, and moved in the circumferential direction from the central axis 5 of the tubular resin film la.
- the rotation speed of the cutting device 2 rotating in the circumferential direction of the tubular resin film, the conveyance speed of the tubular resin film, the angle of the guide roll 3, the position of the guide roll 3, and the scooping device It is preferable to provide an automatic film width adjustment mechanism that can control at least one of the four positions.
- the automatic film width adjustment mechanism determines the rotation speed of the cutting device 2, the conveyance speed of the tubular resin film, the angle of the guide roll 3, the position of the guide roll, or the position of the guide roll from the signal obtained by the position detector at the film end. It controls the position of the picking device 4.
- Example [0087] Hereinafter, the present invention will be described more specifically based on Examples and Comparative Examples. The present invention is not limited to these.
- the tubular resin film manufacturing apparatus 100 shown in FIG. 11 was used, and the cutting and scraping apparatus used was the one shown in FIG. 3 (a) or FIG. 3 (b) to manufacture a long film. .
- the characteristics of each film were examined for the linearity of the film cut portion, the presence / absence of scratches on the film surface, the presence / absence of winding wrinkles, the presence / absence of winding deviation, and the presence / absence of curling.
- Screw shape Full flight single shaft type
- Nozzle shape Parallel nozzle
- Table 1 shows production conditions and results used in Examples and Comparative Examples.
- Example 1 Actual example 2
- Example 3 Example 4
- Example 5 Comparative example 1 Comparative example 2
- Cutting and winding device Equipment diagram No. Fig. 3 (a) Fig. 3 (a) Fig. 3 ⁇ b) ⁇ 3 (a) Fig. 3 (a) Fig. 3 (a) Fig. 3 (a) Material Metal blade Metal blade Metal blade Carbon dioxide -1 ⁇ - Metal blade Metal blade Metal blade Cutting blade insertion angle
- the cutting and scraping device and method according to the present invention can be used for the production of a resin film.
- FIG. 1 is a schematic diagram showing an example of a tubular resin film cutting and scissoring device of the present invention.
- FIG. 2 is a schematic diagram showing an example in which the position of the scraping device is changed by a guide roll.
- FIG. 3 Schematic diagram showing an example of a cutting and scraping device using two or more guide rolls
- FIG. 4 Schematic diagram showing an example of guide roll structure
- FIG. 5 is a schematic view showing an example in which the core member is divided perpendicularly to the central axis of the tubular resin film.
- FIG. 6 is a schematic view showing an example in which the core member is divided horizontally with respect to the central axis of the tubular resin film.
- FIG. 7 is a schematic diagram showing an example of a core member whose diameter can be expanded.
- FIG. 8 is a schematic view showing an example in which a core member is arranged around a center rod.
- FIG. 9 is a schematic view showing an example of a cutting and scraping device showing the arrangement of replacement scraping rolls.
- FIG. 10 is a schematic diagram showing an example of a cutting and scraping device that simultaneously manufactures a plurality of film rolls.
- FIG. 11 is a schematic diagram showing an example of a combination of a tubular resin film production apparatus and a cutting and scraping apparatus of the present invention.
- FIG. 12 Schematic explaining the insertion angle (2A) of the metal blade to the tubular resin film.
- FIG. 13 Shows the positional relationship between the core member and the film as viewed along the central axis direction of the tubular resin film.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Winding Of Webs (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800325153A CN101258007B (zh) | 2005-09-05 | 2006-06-06 | 管状树脂膜的切断卷取装置及切断卷取方法 |
EP06757039.0A EP1923180B1 (en) | 2005-09-05 | 2006-06-06 | Device and method for cutting and winding tubular resin film |
US11/991,298 US8186613B2 (en) | 2005-09-05 | 2006-06-06 | Device and method for cutting and winding a tubular resin film |
CA002620454A CA2620454A1 (en) | 2005-09-05 | 2006-06-06 | Device and method for cutting and winding a tubular resin film |
JP2007509809A JP4008023B2 (ja) | 2005-09-05 | 2006-06-06 | 管状樹脂フィルムの切断巻取り装置および切断巻取り方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005255905 | 2005-09-05 | ||
JP2005-255905 | 2005-09-05 |
Publications (1)
Publication Number | Publication Date |
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WO2007029386A1 true WO2007029386A1 (ja) | 2007-03-15 |
Family
ID=37835517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/311299 WO2007029386A1 (ja) | 2005-09-05 | 2006-06-06 | 管状樹脂フィルムの切断巻取り装置および切断巻取り方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8186613B2 (ja) |
EP (1) | EP1923180B1 (ja) |
JP (1) | JP4008023B2 (ja) |
KR (1) | KR20080036618A (ja) |
CN (1) | CN101258007B (ja) |
CA (1) | CA2620454A1 (ja) |
WO (1) | WO2007029386A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013511399A (ja) * | 2009-11-24 | 2013-04-04 | ラスムッセン・オーレ−ベント | チューブ状フィルムを螺旋状切断するための方法および装置 |
WO2023282308A1 (ja) * | 2021-07-08 | 2023-01-12 | 株式会社バンダイ | 筒状加工装置 |
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CN101875238A (zh) * | 2010-05-31 | 2010-11-03 | 徐建学 | 一种单层薄膜生产流水线上的螺旋分切、收卷组合结构 |
CN102672467A (zh) * | 2012-04-12 | 2012-09-19 | 山东泰山钢铁集团有限公司 | 离心铸造管坯螺旋切分成热轧薄板坯的方法和装置 |
CN103434058B (zh) * | 2013-07-06 | 2015-06-24 | 佛山市埃申特科技有限公司 | 一种用于生产充电辊、显影辊、定影辊、供粉辊的切边机 |
RU179984U1 (ru) * | 2017-11-20 | 2018-05-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный технологический университет" | Станок для разрезки и перемотки пленочного рукава |
CN109228061B (zh) * | 2018-09-30 | 2020-11-06 | 四川川环科技股份有限公司 | 橡胶管覆膜成型工艺 |
KR101982527B1 (ko) | 2018-11-17 | 2019-05-28 | 김종관 | 권취 필름 절단 장치 |
CN115231021B (zh) * | 2022-07-18 | 2024-01-30 | 南通新江海动力电子有限公司 | 薄膜电容器用卷膜机 |
CN117183304B (zh) * | 2023-11-06 | 2024-01-23 | 四川益涵新材料科技有限公司 | 一种pe收缩膜吹膜机 |
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JP7204837B1 (ja) | 2021-07-08 | 2023-01-16 | 株式会社バンダイ | 筒状加工装置 |
JP2023011086A (ja) * | 2021-07-08 | 2023-01-24 | 株式会社バンダイ | 筒状加工装置 |
Also Published As
Publication number | Publication date |
---|---|
US8186613B2 (en) | 2012-05-29 |
EP1923180B1 (en) | 2013-08-07 |
CA2620454A1 (en) | 2007-03-15 |
CN101258007B (zh) | 2011-07-13 |
KR20080036618A (ko) | 2008-04-28 |
CN101258007A (zh) | 2008-09-03 |
EP1923180A1 (en) | 2008-05-21 |
US20090294033A1 (en) | 2009-12-03 |
JP4008023B2 (ja) | 2007-11-14 |
EP1923180A4 (en) | 2010-06-02 |
JPWO2007029386A1 (ja) | 2009-03-26 |
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