JP2009154996A - Manufacturing process of glass fiber sheet-like object winding device and glass fiber sheet-like object winding body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding device capable of efficiently molding a glass fiber sheet-like object winding body without damaging a glass fiber sheet-like object. <P>SOLUTION: A tip end part S of the glass fiber sheet-like object S in a clearance between a roll 24 and a winding cylinder body 22 is fed by a driving rotation of the roll 24 and a follower rotation of the winding cylinder body 22 and enters in a space part between an outer circumference of the winding cylinder body 22 and a guide face 21a of an introducing member 21, moves along the guide face 21a of the introducing member 21 and is wound around the outer circumference of the winding cylinder body 22. After fed around the outer circumference of the winding cylinder body 22, the tip end part S is gripped between the glass fiber sheet-like object S wound around its upper layer and the winding cylinder body 22. Then, the introducing member 21 is driven by a retreating means and moves to retreat in a radius direction of the winding cylinder body 22 so that the guide face 21a positions at outside of an outer circumferential position Z at winding completion of the glass fiber sheet-like object S. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a glass fiber sheet take-up device used for forming a sheet-like product made of glass fiber into a wound body, and a glass fiber sheet use product using the glass fiber sheet take-up device. The present invention relates to a method for manufacturing a wound body.

  Processed products in which glass fibers such as glass chopped strand mats and glass continuous strand mats are formed into sheet-like products are structural materials made by reinforcing resin materials such as thermoplastic resins into various composite reinforcing materials. It is used in various applications such as functional materials. Such a glass fiber sheet is generally formed from glass fibers having various glass materials such as E glass, and long fibers are used under severe control by using a molding apparatus such as a bushing from a molten state. It is manufactured by processing glass fiber manufactured as variously. For example, in the case of a glass chopped strand mat, the glass fiber drawn out from the molten state and wound around a paper tube or the like is dried into a cake, and then the required number is collected from the cake. Then, it is cut out to a predetermined length by a glass fiber cutting device. In a state where the chopped strands thus cut are randomly deposited on the conveyor to form a sheet, a resin agent called a secondary binder is further sprayed thereon, and in this state, each of the chopped strands is dispersed by the secondary binder. A glass chopped strand mat will be obtained through the heating process for joining glass chopped strands. And the manufactured glass chopped strand mat is made into the form wound by the convenience of conveyance and storage, ie, a wound body.

  For such glass chopped strand mats, various inventions have been made so far for the purpose of improving the workability and improving the production quality. For example, in Patent Document 1, a plurality of glass chopped strand mats wound in a cylindrical shape are stacked in a vertical direction in a double row and a double row on a base, and 1 mm having a width of 15 mm or more around the periphery. By tightening with four strips from the book, a conventional cardboard box is not required, and packaging excellent in terms of environment and cost is disclosed. Further, in Patent Document 2, when manufacturing a glass chopped strand mat, before applying the binder to the strand deposit, the binder is efficiently attached to the deposit without applying water, steam, or a solvent. To this end, an invention is disclosed in which chopped strands are cut and deposited on a conveyor and the strand deposit is preheated before the binder, i.e., secondary binder, is sprayed. In Patent Document 3, when a convex corner portion is formed using a glass chopped strand mat and a low styrene monomer-containing curable resin, a glass chopped strand is used to overcome a defect that causes a void without forming along the mold, so-called springback. An invention is disclosed in which an alkylene oxide adduct of bisphenol A and / or hydrogenated bisphenol A is contained as a binder for the strand mat, and the number average molecular weight and weight average molecular weight can be limited and improved. Patent Document 4 discloses a device in which glass strands are bound and folded and further vacuum-packed as necessary in order to increase the efficiency of transportation and storage space of the glass strand mat.

A glass fiber sheet material such as a glass chopped strand described in Patent Document 1 is generally distributed as a cylindrical form, that is, a wound form. However, in order to achieve such a form, it is difficult to perform a smooth winding operation unless the end of the glass fiber sheet is fixed around the core material at the initial stage of winding. For this reason, an adhesive is applied to the tip of the glass fiber sheet to adhere to the core, or a woven portion is provided near the tip of the glass fiber sheet, and the repulsive force of the woven portion is utilized. In order to prevent slippage, a glass fiber sheet-like product wound around the periphery of the core material and a core material are sandwiched with a weaving portion at the tip. Since this work is performed manually by human power, the work is dangerous. From such a viewpoint, a winding device for performing work without performing such manual work has been proposed. For example, in Patent Document 5, in a device that rolls the front end of a mat product into a roll body, a member that contacts the side surface of the mat product and regulates the side surface portion of the mat product that can freely rotate so as to follow the winding of the mat product. An apparatus for forming a mat product roll body provided with the above is disclosed. Further, in Patent Document 6, as the fiber mat is supplied, the conveying surfaces are positioned so as to surround the winding space, and the conveying surfaces are arranged from the radial one end side of the circle inscribed in the conveying surfaces. Roll-up of a fiber mat provided with a plurality of roll-up conveyors for winding the fiber mat into a roll shape by sequentially feeding the belt-shaped fiber mat supplied into the winding space along the circumference of the inscribed circle In the apparatus, the conveyance surface is set in a radial direction so that the diameter of the inscribed circle increases in proportion to the length of the fiber mat supplied into the winding space as the fiber mat is supplied. A roll-up mechanism for a fiber mat provided with a mechanism for changing the position is disclosed. Further, in Patent Document 7, on the mat that moves on the depression formed by the contact pressure roller and the pressure contact roller arranged in parallel at the downstream end of the conveyor, the mat is attached to the core material that rotates reversely following the rotation of the roller. In a winding device for a glass fiber mat that winds a tip side, a swing arm that follows a rotating semi-disc-shaped cam and is rotatable about an intermediate fulcrum, and is attached to an end of the swing arm. A rotatable winding arm that is attached to both ends of the pressure roller at the end of the remote shaft to be driven, and whose tip protrudes from the outer periphery of the roller and is attached to one rear end thereof; An integral winding plate in which a suspension shaft is suspended between the front end portions of the winding arm and a refraction control rod is fixed to the upper side of the contact pressure roll on the shaft circumferential surface, and the upstream side of the pressure contact roller The winding plate is rotated with the tilting of the winding arm in contact with the control rod. Winding apparatus for a glass fiber mat is disclosed which is characterized in that a and the stopper that.
Japanese Patent Laid-Open No. 10-167272 JP-A-10-226951 JP 2003-48255 A Utility Model Registration No. 3048584 No. 1-441712 Japanese Patent Application Laid-Open No. 61-140446 Japanese Utility Model Publication No. 5-77151

  However, the inventions that have been made so far are not sufficient to produce higher-quality glass fiber sheets. First of all, work by manpower is not only dangerous, but also adversely affects glass fiber mats and the like. This is because when the weaving is formed, it is impossible to use the glass fiber sheet-like material at the front end portion or the end portion without any damage. In other words, where the adhesive is attached to the tip of the sheet-like material, or where the glass fiber sheet-like material is broken by weaving, unnecessary materials may remain attached, and the glass fiber is cut. In some cases, there are still scratches. For this reason, if a portion near the end of the glass fiber sheet is used as a composite material, it may adversely affect the performance such as the strength of the composite material, and the portion near the end of the glass fiber sheet is discarded. It is not economical in terms of using up all the materials. Moreover, in such a situation, only winding at a low speed based on human power can be performed, and the manufacturing efficiency is lowered. Furthermore, the conventional automatic winding devices shown in Patent Documents 5, 6, and 7 have a complicated driving mechanism, and must make a large-scale capital investment. There was also a problem.

  Furthermore, if a spelled and folded form as described in Patent Document 4 is adopted, a weaving part formed in the vicinity of the front end part of the glass fiber sheet in a wound form in a place where the folding curvature is small; There is a high risk of generating the same defects, and it cannot be used as a glass fiber sheet material used in high-strength FRP applications. Even if various improvements such as Patent Documents 2 and 3 are performed, the wound body formed in such a low manufacturing efficiency state has a high manufacturing cost, and is in a glass fiber sheet shape for more applications. It is a hindrance in using things.

  The present invention has been proposed in order to solve the above-mentioned problems, and it is not necessary to make a large-scale capital investment, and without damaging the glass fiber sheet, the glass fiber sheet It is an object of the present invention to provide a glass fiber sheet winding device capable of efficiently forming a wound body and a method for manufacturing a glass fiber sheet winding body using the device.

  While conducting research related to a method for forming a glass fiber sheet-shaped wound body at a high speed, the present inventors can easily and efficiently use the glass fiber sheet-shaped wound body economically without relying on human power. It was found that the conventional glass fiber sheet-shaped wound body was not damaged, and no new glass fiber sheet-shaped material was wound. An apparatus and a method for manufacturing a glass fiber sheet roll are presented.

  That is, the glass fiber sheet take-up device of the present invention includes a pair of rolls that are driven and rotated in the same direction, and a take-up cylinder that is rotatably disposed above the upper surface valley between the pair of rolls. The glass fiber sheet is wound around the outer periphery of the take-up cylindrical body by driving rotation of the pair of rolls and driven rotation of the take-up cylindrical body. An apparatus for winding a glass fiber sheet that forms a rolled article, and has a guide surface having a curvature along the outer periphery of the winding cylinder and facing the outer periphery with a space therebetween The member is disposed so as to be movable, the tip of the glass fiber sheet wraps around the outer periphery of the winding cylinder, and is wound between the glass fiber sheet and the winding cylinder wound on the upper layer thereof. After being pinched, the guide member The guide surface is characterized in that it comprises retracting means for retracting moves to be positioned outside the outer peripheral position at the winding completion of the glass fiber sheet.

  An example of the operation of the glass fiber sheet take-up device of the present invention will be specifically described with reference to FIG.

A glass fiber sheet S such as a glass chopped strand mat formed in a belt shape is conveyed at a predetermined speed by using a conveying means such as a conveyor roller, and as shown in FIG. The roller 24 that rotates in the same direction is supplied to the winding device 20 from one side (left side in the figure). Above the upper trough between the pair of rolls 24, a winding cylinder 22 is disposed so as to be rotatable around the central axis 23, and the tip of the glass fiber sheet S is located on the outer periphery of the roller 24 and the winding cylinder. When entering the gap between the outer periphery of the body 22, the winding cylinder 22 is driven by the rotation of the roller 24 to rotate the roller 24 in the opposite direction. As a result, the glass fiber sheet S is wound around the outer periphery of the winding cylinder 22. A guide member 21 having a guide surface 21 a is arranged on the outer side in the radial direction of the winding cylinder 22. The guide surface 21 a of the guide member 21 has a curvature along the outer periphery of the winding cylinder 22 and faces the outer periphery of the winding cylinder 22 with a predetermined interval. The leading end S ₁ of the glass fiber sheet S entering the gap between the roller 24 and the take-up cylinder 22 is fed by the drive rotation of the roll 24 and the driven rotation of the take-up cylinder 22 to be taken up. It enters the space between the outer periphery of the cylinder 22 and the guide surface 21 a of the guide member 21. Then, as shown in FIG. 1B, the tip end portion S _{1 that} has entered the spacing portion advances while being guided (guided) along the guide surface 21 a of the guide member 21, and is wound around the outer periphery of the winding cylinder 22. It will be done. Then, as shown in FIG. 1 (C), the tip portion S ₁ is the winding after the outer periphery of the cylindrical member 22 and orbiting (round), the glass fiber sheet material wound thereon S and the winding tubular body 22 Is sandwiched between. Thereafter, as shown in FIG. 1 (D), the guide member 21 is driven by a retracting means (not shown), and the guide surface 21a is positioned at the outer periphery when the glass fiber sheet S is completely wound (at the time of full winding). The winding cylinder 22 retreats in the radial direction (M direction) so as to be located outside the outer peripheral position Z of the wound body. Therefore, the guide surface 21a of the guide member 21 is not hindered when the glass fiber sheet S is wound up. Such a series of operations, the guide surface 21a of the guide member 21, in a take-up early, in a state of being laminated on the outer circumference of the glass fiber sheet material S of the tip portion S ₁ is wound up reliably the tubular body 22 So that it can be wound smoothly. Therefore, it is not necessary to fix the vicinity of the tip portion S _{1 of} the glass fiber sheet S with an adhesive or the like, and the glass fiber is not folded near the tip portion S ₁ of the glass fiber sheet S. A wound body of the sheet-like material S can be obtained.

  The retracting movement of the guide member 21 may be performed after a predetermined time has elapsed in consideration of the rotational speed (winding speed) of the winding cylinder 22 or may be wound around the outer periphery of the winding cylinder 22. The thickness of the glass fiber sheet S may be detected by a sensor or the like and performed based on the detected value. Moreover, the moving distance and moving speed of the guide surface 21a of the guide member 21 are set to values corresponding to the winding speed of the glass fiber sheet S and the outer diameter of the wound body when the winding is completed (fully wound). It suffices if the guide surface 21a of the guide member 21 does not hinder the winding operation.

  Further, the position after the retracting movement of the guide member 21 is such that the radial distance L from the outer periphery of the winding cylinder 22 to the guide surface 21a is the outer peripheral position of the winding body when fully wound from the outer periphery of the winding cylinder 22. The value is preferably larger than the value obtained by adding 10 mm to the radial distance T to Z, more preferably a value larger than the value obtained by adding 20 mm. This is because if the position of the guide surface 21a after retraction is too close to the outer peripheral position Z of the wound body, problems such as rubbing against the guide surface 21a due to increase or decrease in winding density occur.

  As a material constituting the guide member, any material may be used as long as it can realize a mechanical strength sufficient to guide the tip portion of the glass fiber sheet. A material such as plastic, FRP, metal, wood, rubber or glass may be used alone or in combination. Of these, plastic and FRP are particularly preferable because they have a certain strength, are lightweight, and have high moldability. As the plastic, for example, acrylic, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, nylon, polyacetal, polycarbonate, polyphenylene sulfide, polysulfone, polyetherimide, polyetheretherketone, polyimide, or aromatic polyester may be used. However, there is no problem with other plastic materials.

  The guide member may be formed by a molding method such as cast molding or extrusion molding, or may be formed by cutting. Further, a plurality of members may be formed in advance and formed by combining the respective members. As a method of combination, for example, it is possible to obtain a bonded structure by bonding or fusing using an adhesive, fixing with a bolt or the like, and further fixing the support through a plurality of members.

  The winding cylinder is preferably a paper tube made of corrugated cardboard in consideration of economics, etc., but is made of a material such as plastic or FRP when the mechanical strength is important. There may be.

  In addition to the above, the glass fiber sheet take-up device of the present invention has a guide surface of the guide member that is concentric with the outer periphery of the take-up cylinder in a cross section perpendicular to the central axis of the take-up cylinder, and If it has an arc shape with an angle range of 120 ° to 270 ° centered on the central axis, it is possible to accurately guide the tip of the glass fiber sheet-like material, and the retracting operation of the guide member described above When performing, it can be set as the structure which is easy to move a guide member easily.

  If the angle of the guide surface of the guide member is less than 120 °, depending on the degree of flexibility of the glass fiber sheet and the winding speed, the tip of the glass fiber sheet may be wound around the winding cylinder. It may not be possible. By setting the angle to 120 ° or more, even if the winding speed is increased, it can be wound without any trouble, and also for a glass fiber sheet with a thickness that is poor in flexibility, An efficient winding operation can be performed. Moreover, when the said angle exceeds 270 degrees, the retraction movement of a guide member may become difficult.

  From the above viewpoint, in order to make the winding operation and the retracting movement of the guide member smoother, the angle of the guide surface should be set within an angle range of 100 ° to 250 °. preferable.

  In addition to the above, the glass fiber sheet take-up device of the present invention has an interval between the end of the guide surface of the guide member and the outer periphery of the take-up cylinder in the thickness dimension of the glass fiber sheet. On the other hand, when the glass fiber sheet is wound more than twice, the glass fiber sheet is rolled up reliably and accurately without causing defects such as damage on the surface of the glass fiber sheet. Since it can wind up smoothly, it is preferable.

  Here, said space | interval is the shortest distance between the edge part of the guide surface of a guide member, and the outer periphery of a winding cylinder.

  The thickness dimension of the glass fiber sheet has a thickness of 0.05 mm to 10 mm, although it varies depending on the type of glass fiber and its use. Therefore, it is preferable that the above-mentioned interval is about 0.1 mm to 20 mm. If the above interval is excessive, wrinkles are likely to be generated in the glass fiber sheet, and it is difficult to obtain a wound body with a stable quality. On the other hand, if the distance exceeds 5 times the thickness dimension of the glass fiber sheet material, the guide surface guiding function may not be obtained. Therefore, it is preferable that the above-mentioned interval is in the range of 2 to 5 times the thickness dimension of the glass fiber sheet. For example, specific dimensions are in the range from 0.1 mm to 50 mm.

  In addition, the glass fiber sheet take-up device of the present invention is suitable for winding a glass chopped strand mat as a glass fiber sheet.

  Here, the glass chopped strand mat is a cloth-shaped form in which glass chopped strands obtained by cutting glass fiber strands to have a predetermined length are spread.

  Various lengths and thicknesses of the glass chopped strands constituting the glass chopped strand mat can be adopted depending on the application, and are not particularly limited. Each glass chopped strand is in a state of being firmly bonded with an organic resin.

  Moreover, the manufacturing method of the glass fiber sheet-shaped winding body of the present invention uses the glass fiber sheet-shaped winding device described above, and the glass is wound on the winding cylinder at a winding speed of 10 m / min to 300 m / min. A fiber sheet-like product is wound up to produce a glass fiber sheet-like product.

  When the winding speed of the glass fiber sheet is less than 10 m / min, the production efficiency is not improved in mass production, which is not economical. On the other hand, if the winding speed exceeds 300 m / min, even if the glass fiber sheet is slightly bent, it may cause defects during winding, which makes manufacturing management difficult. Therefore, it is not preferable. From the above viewpoint, in order to perform winding with higher quality and high stability, the winding speed is preferably in the range of 20 m / min to 250 m / min, more preferably 30 m / min to The range is 200 m / min, and more preferably 40 m / min to 180 m / min.

  The glass fiber sheet-shaped wound body manufactured by the manufacturing method of the present invention can be configured such that no adhesive is applied or woven into the vicinity of the tip position of the wound glass fiber sheet-shaped object. . Here, the vicinity of the tip position of the glass fiber sheet is, for example, a part having a dimension from the tip of the glass fiber sheet to 1000 mm.

  The material of the glass fiber constituting the above-described glass fiber sheet-shaped wound body is not particularly limited as long as it exhibits desired performance, and glass fibers of various materials can be used. is there. For example, it may be a glass fiber having a typical composition such as E glass, D glass, C glass, AR glass, H glass, or S glass, or may have another composition.

  In addition, an appropriate amount of various organic resins can be attached to the surface of the glass fiber constituting the above-mentioned glass fiber sheet-shaped wound body, and a single or plural kinds of resins are mixed and used depending on the application. It is possible.

  In addition, the above-mentioned glass fiber sheet-shaped wound body may be used in various applications using the glass fiber sheet-shaped body from which the wound body is released to reinforce the mechanical performance of a resin material or the like. For example, there are electronic device housing materials, gear tape reels, various storage cases, optical component packages, electronic component packages, switch boxes, insulating supports, etc. (Roof material), window frame material, car body front, car body, lamp house, air spoiler, fender grill, tank trolley, ventilator, water tank, filth tank, seat, nose cone, fender grill, curtain, filter, air conditioning duct, Muffler filter, dash panel, fan blade, radiator tire, timing bell For aircraft-related applications, there are engine covers, air ducts, seat frames, containers, curtains, interior materials, service trays, tires, anti-vibration materials, timing belts, etc., and for shipbuilding and land transportation-related applications, motor boats, yachts, fishing vessels , Dome, buoy, marine container, floater, tank, traffic light, road sign, curve mirror, container, pallet, guardrail, lighting cover, spark protection sheet, etc., for agricultural applications, greenhouse, silo tank, spray nozzle, There are props, linings, soil improvers, etc. In construction, civil engineering and building materials, bathtubs, bath toilet units, toilets, septic tanks, water tanks, interior panels, capsules, valves, knobs, wall reinforcements, precast concrete boards, flat plates , Corrugated board, tent, shutter, outside Panels, sashes, piping pipes, reservoirs, pools, roads, structure side walls, concrete formwork, tarpaulins, waterproof linings, curing sheets, insect screens, etc. For industrial facilities, bug filters, sewer pipes, water purification related equipment , Anti-vibration concrete reinforcement (GRC), water tank, belt, chemical tank, reaction tank, container, fan, duct, corrosion-resistant lining, valve, refrigerator, tray, freezer, trough, equipment parts, motor cover, insulation wire, transformer There are equipment insulation, cable cords, work clothes, curtains, evaporation panels, equipment housings, etc. For leisure sports related applications, fishing rods, skis, archery, golf clubs, pools, canoes, surfboards, camera housings, helmets, shock protection armor , Flower pots, display boards, etc. , Chairs, beds, benches, mannequins, trash cans, mobile phone protection materials.

  (1) According to the glass fiber sheet take-up device of the present invention, at the time of winding on a glass fiber sheet like a glass chopped strand mat released from the wound glass fiber sheet roll. Since there is no damage such as cracking or scratching of the glass fiber due to this, it is not necessary to discard a damaged part having a problem in mechanical strength, and the glass fiber sheet can be used without waste, which is economical.

  (2) If the guide surface of the guide member has an arc shape with an angle range of 120 ° to 270 °, efficient winding can be performed when winding the glass fiber sheet, and the guide surface can be fully filled. A form that can be smoothly retracted to an unobstructed position before being wound can be realized with a compact configuration.

  (3) Further, when the gap between the end of the guide surface of the guide member and the outer periphery of the take-up cylinder is at least twice the thickness of the glass fiber sheet, the glass fiber sheet is taken up at the time of winding. Since defects caused by rubbing due to the undulation of the object can be prevented, a glass fiber sheet having a stable quality can be obtained.

  (4) According to the method for producing a glass fiber sheet-shaped wound body of the present invention, a glass fiber sheet material having excellent quality and high production efficiency as compared with the conventional case of producing at a low speed of less than 20 m / min. A glass fiber sheet-like material such as a glass chopped strand mat that is inexpensive and has a high performance can be provided to the market.

  Below, the manufacturing method of the glass fiber sheet-like winding apparatus of this invention and the glass fiber sheet-like winding body which uses this apparatus is demonstrated concretely based on an Example.

1 and 3 are partial cross-sectional views of the glass fiber sheet take-up device of the present invention. In the figure, 20 is a glass fiber sheet take-up device, 21 is a guide member, 21a is a guide surface, 22 is a take-up cylinder (paper tube), 23 is a central axis of the take-up cylinder 22, 24 is a roller, 25 end of the guide surface 21a of the guide member 21, H is the direction in which the glass fiber sheet material S is supplied, M is retracting operation direction of the guide member 21, S ₁ is the tip of the glass fiber sheet material S, T is the radial distance from the outer periphery of the winding cylindrical body 22 to the outer peripheral position Z (the outer peripheral position of the winding body when fully wound) Z when the winding of the glass fiber sheet S is completed, and L is the winding cylindrical body 22. The distance in the radial direction from the outer periphery of the guide member 21 to the guide surface 21a of the guide member 21, and α represents the angle of the guide surface 21a of the guide member 21 around the central axis 23 of the winding cylinder 22.

The glass fiber sheet take-up device 20 of this embodiment is for winding, for example, a glass chopped strand mat S made of E glass as a glass fiber sheet as a wound body, and interlocks in the same direction. A pair of rollers 24 that are driven and rotated, and a paper tube 22 as a take-up cylinder that is rotatably disposed above an upper valley between the pair of rollers 24. The guide member 21 is arranged so as to cover the outer periphery of the paper tube 22 from the upper right direction in the drawing. The interval between the guide surface 21a of the guide member 21 and the outer periphery of the paper tube 22 is set to an equal interval of 5 mm, for example. The guide member 21 is made of, for example, MC nylon (registered trademark) (general name: 6 nylon) manufactured by Nippon Polypenco Co., Ltd. It is a long columnar body having a direction of 3000 mm and a side of 100 mm. The cross-sectional shape perpendicular to the longitudinal direction of the guide member 21 is a shape obtained by removing a partial circle from a rectangle, and the portion from which the circle is removed serves as a guide surface 21a. Therefore, the guide surface 21a has an arc-shaped cross section, and the tip end portion S ₁ of the glass fiber sheet S is guided through the space between the guide surface 21a and the outer periphery of the paper tube 22, and the paper tube 22 It will wind around the outer periphery. This arc-shaped guide surface 21a is concentric with the outer periphery of the take-up cylinder 22, and the angle α around the central axis 23 of the paper tube 22 extends to 190 °. In the range of this angle α, the distal end S ₁ of the glass fiber sheet S can be accurately guided, so that the distal end S ₁ can be fixed by adhesion or adhesion, or fixed, such as folding, as in the past. Even if it does not perform, it can wind up smoothly.

In the initial stage of the winding operation, the guide member 21 is maintained at a position where the guide surface 21a is spaced 5 mm from the outer periphery of the winding cylindrical body 22 as described above. Then, the tip portion S ₁ of the glass chopped strand mat S is around the outer paper tubes 22 (one round), after being sandwiched between the outer periphery of the glass chopped strand mat S and the cardboard tube 22 to be wound thereon The guide surface 21a is retracted to a position outside the outer peripheral position when the winding of the glass chopped strand mat S is completed by the retracting means (not shown). For example, when winding of the glass chopped strand mat S is completed (fully wound), the outer periphery is 135 mm and the paper tube 22 has a radius of 54 mm, from the outer periphery of the paper tube 22 to the outer periphery of the wound body. Since the distance T of the guide member 21 is T = 135 mm−54 mm = 81 mm, the guide member 21 is retracted from the initial position to the outside in the radial direction of the paper tube 22 by a distance greater than 81 mm−5 mm (initial position) = 75 mm. Moving. The position of the guide surface 21a of the guide member 21 after the retreat is a position separated from the outer periphery of the paper tube 22 in the radial direction by 120 mm, for example.

  The retracting operation of the guide member 21 can be performed by operating an actuator such as a hydraulic cylinder (not shown) so that the retracting operation is performed in 10 seconds after the start of winding, for example. . Of course, other mechanisms may be employed as the mechanism for the retraction operation, but any mechanism capable of accurate operation is acceptable.

  Next, a method for producing a glass fiber sheet roll using the glass fiber sheet winder 20 of the present invention will be described by taking a glass chopped strand mat S as an example of the glass fiber sheet.

  In order to explain the production method of the present invention in FIG. 2, a part of the production process is shown, and where the glass fiber sheet take-up device 20 of the present invention is arranged is shown as an arrangement drawing. In FIG. 2, 41 represents a cake, 42 represents a glass strand, 43 represents a fiber cutting blade, 44 represents a glass chopped strand, 45 represents a belt conveyor, 46 represents a secondary binder, and 47 represents a heating and pressing apparatus.

  First, after mixing a plurality of glass raw materials prepared in advance so as to become E glass, it is put into a glass melting furnace and subjected to various homogenization operations at a high temperature to obtain a homogeneous glass state. The glass is led to a heat-resistant bushing arranged in the molding area. Then, a continuous glass filament is pulled out from a bushing provided with a nozzle having 4000 holes, and a pre-adjusted sizing agent is applied by an applicator, and then wound around a paper tube in a strand state to form a cake 41. After storing and drying in the state of the cake 41, the glass strands 42 released from the plurality of cakes 41 are guided to a glass fiber cutting device and cut into a chopped strand 44 having a length of about 50 mm by a cutting blade 43 attached to a rotating roll. .

  The glass chopped strands 44 thus obtained are randomly scattered and deposited on the belt conveyor 45, and are overlapped at a predetermined density. After spraying the secondary binder 46 from above, the glass chopped strand mat S is obtained by processing with a heating and pressurizing apparatus and solidifying and bonding the respective glass chopped strands with the secondary binder 46. . And the glass chopped strand mat S is guide | induced to the glass fiber sheet-like material winding apparatus 20 by making the speed of the belt conveyor which mounted the glass chopped strand mat S into the speed of 40 mm / min. The speed of the belt conveyor on which the glass chopped strand mat S is placed is manufactured at various set speeds from 10 mm / min to 100 mm / min depending on the type of the glass chopped strand mat S.

Since the glass fiber sheet take-up device 20 is configured as described above, the glass chopped strand mat S can be smoothly taken up on the outer periphery of the paper tube 22 at a take-up speed of 85 mm / min without relying on human power. Thus, the wound body 30 of the glass chopped strand mat S having a diameter of 270 mm can be obtained. About the winding body 30 of the obtained glass chopped strand mat S, the explanatory drawing is shown to FIG. 4 (A) and (B). As shown in FIG. 4 (B), the chopped strand mat S was formed without applying an adhesive or an adhesive to the first tip portion S ₁ of winding and without being folded. Therefore, the glass chopped strand mat S has no extra deposits, and no cracks or scratches on the glass fibers generated during folding are observed. The glass chopped strand mat S released from the wound body 30 is the last one. It has excellent quality so that even the tip can be used up completely.

It is operation | movement explanatory drawing of the glass fiber sheet-like material winding apparatus of this invention, Comprising: (A) Winding initial stage, (B) is the state in which the glass fiber sheet-like material is being wound up along a guide member, (C ) Is a state in which the glass fiber sheet goes around the winding cylinder, and (D) is retracted in a direction in which the distance from the winding cylinder becomes larger than the outer peripheral position of the winding body when the guide member is fully wound. It shows the state after. The layout of the glass fiber sheet-like material winding device of the present invention. It is explanatory drawing of the glass fiber sheet-like material winding apparatus of this invention, Comprising: (A) is a perspective view, (B) represents sectional drawing of the X direction of (A) perpendicular | vertical to a winding axis | shaft. It is explanatory drawing of the glass fiber sheet-like material winding body of this invention, Comprising: (A) is a perspective view, (B) represents the enlarged view of the Y section.

Explanation of symbols

10, 20 Glass fiber sheet take-up device 11, 21 Guide member 11a, 21a Guide surface 12, 22 Paper tube (winding cylinder)
13, 23 Winding shafts 14, 24 Roller 25 Guide member end 30 of guide member Glass fiber sheet roll 41 Cake 42 Glass strand 43 Fiber cutting blade 44 Glass chopped strand 45 Belt conveyor 46 Secondary binder 47 Heating Pressurizing apparatus H Glass fiber sheet supply direction M Guide member retracting direction S Glass fiber sheet S ₁ Glass fiber sheet tip T The outer periphery of the take-up cylinder and the wound body when fully wound Radial distance L between the outer circumferential position of the winding cylinder and the radial direction distance Z between the outer circumference of the winding cylinder and the guide surface of the guide member The outer circumferential position α of the winding body when fully wound The central axis of the winding cylinder Center guide angle

Claims (5)

A pair of rolls driven and rotated in the same direction, and a winding cylinder that is rotatably disposed above the upper surface valley between the pair of rolls, and is supplied from one of the pair of rolls Glass fiber sheet-like material is wound around the outer periphery of the take-up cylinder body by driving rotation of the pair of rolls and driven rotation of the take-up cylinder body to form a glass fiber sheet-form wound body A sheet take-up device,
A guide member having a curvature along the outer periphery of the winding cylinder and having a guide surface facing the outer periphery with a space therebetween is movably disposed,
After the front end portion of the glass fiber sheet is wound around the outer periphery of the winding cylinder and is sandwiched between the glass fiber sheet and the winding cylinder wound on the upper layer, the guide member The glass fiber sheet take-up device is provided with a retracting means for retracting and moving the guide surface so that the guide surface is located outside the outer peripheral position when the winding of the glass fiber sheet finish is completed. .   In a cross section perpendicular to the central axis of the winding cylinder, the guide surface of the guide member is concentric with the outer periphery of the winding cylinder and has an angle range of 120 ° to 270 ° around the central axis. The glass fiber sheet take-up device according to claim 1, which has an arc shape.   The distance between the edge part of the guide surface of the said guide member and the outer periphery of the said winding cylinder is 2 times or more with respect to the thickness dimension of the said glass fiber sheet-like thing, or 1 characterized by the above-mentioned. The glass fiber sheet take-up device according to claim 2.   The said glass fiber sheet-like material is a glass chopped strand mat, The glass fiber sheet-like material winding apparatus in any one of Claims 1-3 characterized by the above-mentioned.   The glass fiber sheet-like product winding device according to any one of claims 1 to 3, wherein the glass fiber sheet-like product is wound around the take-up cylinder at a take-up speed of 10 m / min to 300 m / min. A method for producing a glass fiber sheet-shaped wound body, comprising winding a glass fiber sheet-shaped wound body.

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