JP4268529B2 - Method for transporting wood laminate mat, method for manufacturing wood-based composite material, and side guide for transporting wood laminate mat - Google Patents

Description

  In the present invention, elongated wooden pieces mixed with a binder are substantially aligned in the length direction and stacked to form a wooden laminated mat. The wooden laminated mat is conveyed by a conveying device, and pressed or heated by a press molding device. When manufacturing a wood-based composite material, a plurality of pairs of side guides for preventing the collapse of both side surfaces of the wood laminate mat are arranged on the transport device, and the wood laminate mat passes through the place where the side guide pairs are arranged. When transporting the wood laminate mat to the mold side frame of the press molding machine, the wood laminate mat is transported and moved so that both sides of the wood laminate mat are not collapsed, and transported by the above method. The present invention relates to a production of a wood-based composite material using a wood laminate mat and a side guide for transporting the wood laminate mat used in the transport device.

  As a method for obtaining a wood-based composite material, for example, a fixed-size material in which arrayed lignocellulosic fibers are fixed with an adhesive, and the lignocellulosic fibers are about 6 inches (about 15 cm) to about 4 feet (about 122 cm). ), A width of about 0.05 inch (about 0.1 cm) to about 0.25 inch (about 0.6 cm), and a length of about 0.05 inch (about 0.1 cm) to about 0.5 inch ( A thickness of about 1.3 cm), and the strength of the obtained sizing material is equal to or higher than the strength of at least one grade of lumber cut and sampled from the above-mentioned lignocellulosic fiber There has been proposed the above-mentioned sizing material characterized by having the resin solid content of the adhesive and the density of the obtained sizing material (for example, see Patent Document 1).

  Moreover, it is a plate-like product, the plate-like product has a thickness of 25 mm or more, is cut out from a single-layer panel made of a wood wafer, the wafer is aligned in a certain length direction, When the wafer is measured in the longitudinal direction in the large plane of the single-layer panel, the average deviation with respect to the major axis of the panel is in the range of 0 to 10 degrees, orthogonal to the large plane and in the longitudinal direction of the panel The average deviation when the wafer is measured in the length direction within a small plane is within a range of 0 to 5 degrees, and the wafer has an average length of 200 mm or more when measured in the grain direction of the wafer. The shaped product forms a width portion of the plate-like product by a pair of cut surfaces separated by a predetermined distance, and the cut surface is substantially parallel to the long axis of the single-layer panel from which the plate-like product is cut out. Wafer board plate products are known That (for example, see Patent Document 2.).

  The fixed-dimension material described in Patent Document 1 and the plate-shaped product described in Patent Document 2 are all arranged in the length direction of the cellulose fiber or the elongated wooden wafer along the length direction of the product, and bonded as necessary. It is obtained by mixing the agents and stacking them in a wood-based mat, and then applying pressure or heating. Since it has high strength, it can be applied as a wood-based structural material.

When obtaining a high-strength wood-based structural material such as a fixed-size material as in Patent Document 1 or a plate-like product as in Patent Document 2, an elongated wooden material can be obtained regardless of the shape of the product. A binder is mixed in the piece, and the length direction is aligned so that it becomes a long plate shape with a substantially rectangular cross-section to form a wooden laminated mat. This wooden laminated mat is placed on a call board, and the call board is conveyed. Place it on the equipment and transport it to the stock yard, temporarily store it in the stock yard, take it out of the stock yard and measure its weight, move it into the mold of the pressurizing / heating press molding equipment, A general method of obtaining a molded body by pressurization or heating is employed.
Japanese Patent Publication No. 50-17512 Japanese Patent No. 2527761

  However, as described above, the long wooden pieces are arranged along the length direction of the product and are formed into a mat shape by stacking them into a product with a desired thickness by pressing. Then, there is a problem that both side surfaces of the wood laminate mat aligned in the length direction are more likely to collapse as the thickness increases.

  FIG. 5 is an apparatus configuration diagram showing an outline of a molding line from a wood material piece orientation laminating device to a press molding device for manufacturing such a wood-based composite material. In other words, when manufacturing a wood-based composite material, a wood laminate mat is obtained by orienting and laminating elongated wood pieces mixed with a binder on an conveying device 4 such as a caul board or the like in an apparatus A for orienting and laminating. The wood laminate mat is transported from the lower part of the orientation laminating apparatus A to the press molding apparatus D, and is temporarily stored in a stock yard B provided in the middle of the transport apparatus 1 as necessary. It is necessary to place a wood laminate mat on the pressure plate 100 of D. When transporting or moving the wood laminate mat, side guides 51 and 52 are provided over the entire transport device 1 to prevent collapse of both side surfaces of the wood laminate mat.

  However, the side guides 51 and 52 may be exchanged during the conveyance and movement, and at that time, the side guides 51 and 52 are moved while sliding on the side surfaces temporarily. At this time, if the side guides 51 and 52 do not face the exact position where the next-stage wood laminate mat is placed, both sides of the side guide 51 and 52 are moved as the thickness of the wood laminate mat increases. There was a problem that it was easy to collapse.

  The transport device 1 for a wood laminate mat carries a wood laminate mat on a transport device 4 such as a belt conveyor or a call board placed thereon by a drive roller or a belt conveyor. Although it is desirable that a continuous side guide is provided on the transport device, a plurality of pairs of side guides 51 and 52 having an appropriate length are usually arranged on the transport device 1 for maintenance of the transport device. Used.

  Further, when the wood-based composite material is manufactured, in order to increase the working time of the press molding apparatus D, for example, when the call board 4 is used as the conveying apparatus 1, the wood laminated mat placed on the call board 4 is The plates 4 are temporarily accommodated in the stock yard B, and are sequentially supplied to the press forming apparatus D as needed from here.

  When temporarily storing in the stock yard B, the call board 4 on which the wooden laminated mat is placed is inserted under the stock yard side guides 51 s and 52 s arranged at predetermined positions of the stock yard B. Accordingly, both side surfaces of the wood laminate mat come into contact with the stockyard side guides 51s and 52s from the side guides 51 and 52 during transport.

  The stockyard side guides 51 s and 52 s are placed on the call board 4 so as to cover and cover both side surfaces of the wood laminate mat. Accordingly, in this work, the stockyard side guides 51s and 52s are merely placed on the call plate 4 and are not fixed. Therefore, when the call plate 4 moves, the position may shift. is there.

  The weight of the wooden laminated mat carried out from the stockyard B is measured before being supplied to the press molding apparatus D. In this operation, the lightweight and insertion apparatus C can be placed on a load cell (not shown). At this time, the insertion device C is raised or lowered by a lift E such as an air cylinder. The center line of the molding die side frames 101 and 102 arranged above the lower pressure plate of the press molding apparatus E and the center of the wood laminate mat may be shifted during the lifting operation or the subsequent moving process. To do. That is, when the call plate 4 on which the wood laminate mat is placed is inserted into the pressure plates 100, 103 of the press molding apparatus D and placed at a predetermined position, the molding die side frame 101 above the lower pressure plate 100, A step is generated between the inner surface of 102 and the inner surfaces of the side guides 51 and 52 of the insertion device C.

    When the insides of the side guides 51 and 52 of the insertion device C are inserted into the molding die side frames 101 and 102, the wood laminate mat, the call board 4, and the side guides 51 and 52 are advanced by the insertion device C, and the side guides 51 and 52 are moved forward. , 52 and the end face of the mold side frame 10 collide with each other. At this time, if the center line of the molding mold side frames 101 and 102 is shifted from the center line of the wood laminate mat, the inside of the side guides 51 and 52 with respect to the inner surface of the molding mold side frames 101 and 102 It will be in the state where the surface is located outside. When the wood mat is inserted in this state, the side guides 51 and 52 come into contact with the end surfaces of the molding die side frames 101 and 102, and a step is formed by the wood material pieces oriented and laminated in the vicinity of the side guides 51 and 52. This causes the wooden laminated mat to break, the orientation of the stacked wooden material pieces is disturbed, and the insertion into the molding die 1 cannot be performed.

    In the present invention, the laminated wood mat oriented and stacked on the transport device can be transported and moved to the press molding device without disturbing the stacking shape and orientation state during the transport, and can be moved into the mold of the press machine. It is an object of the present invention to provide a method for transporting a wood laminate mat, a method for producing a wood-based composite material by this method, and a side guide for transporting a wood laminate mat used therein.

  The method for transporting a wood laminate mat according to claim 1 (invention 1) transports a wood laminate mat in which elongated wood pieces mixed with a binder are substantially aligned in the length direction by an orientation laminate device to a press molding device. A method of transporting a wood laminate mat used when producing a wood-based composite material by pressing or heating with the press molding device, wherein a plurality of pairs of side guides are arranged on the transport device, An elastic sheet whose tip is extended from the end of the side guide in the advancing direction is provided on the inner surface of the side guide, and the wooden laminated mat moves on the conveying device with both side surfaces in contact with the sheet. The upstream side guide and the downstream side guide are brought into contact with each other while the extension end of the sheet provided in the upstream side guide is inserted into the upstream side of the downstream side guide. Characterized by moving the both sides thereof to the downstream side side guide while sliding the seat surface.

  A method for transporting a wood laminate mat according to claim 2 (invention 2) is to transport a wood laminate mat in which elongated wood pieces mixed with a binder are substantially aligned in the length direction by an orientation laminate device to a press molding device. A method of transporting a wood laminate mat used when producing a wood-based composite material by pressing or heating with the press molding device, wherein a plurality of pairs of side guides are arranged on the transport device, An elastic sheet whose tip is extended from the end of the side guide in the advancing direction is provided on the inner surface of the side guide, and the wooden laminated mat moves on the conveying device with both side surfaces in contact with the sheet. The side guide and the mold side frame are brought into contact with each other while the extended end of the sheet provided on the side guide is inserted inside the mold side frame of the press molding apparatus, and the wooden laminated mat is seated on both sides thereof. Sliding surface While thus being moved to the mold side frame.

  According to a third aspect of the present invention, there is provided a method for producing a wood-based composite material (Invention 3), wherein a wood laminate mat in which elongated wood pieces mixed with a binder are substantially aligned in the length direction by an orientation laminate device and stacked. A method of manufacturing a wood-based composite material by transporting and pressurizing or heating with the press molding device, wherein a plurality of pairs of side guides are arranged on the transport device, and the tip is on the inner surface of the side guide. A sheet having elasticity extending from the end in the traveling direction of the side guide is provided, and the wooden laminated mat is moved on the conveying device in a state where both side surfaces thereof are in contact with the sheet, and is provided on the upstream side guide. The upstream side guide and the downstream side guide or the mold side frame are brought into contact with each other while the extended end of the sheet is inserted inside the mold side frame of the downstream side guide or the press molding apparatus, and the wood laminated mat is , Its both sides While sliding over up surface moves to the downstream side guide or mold side frame, characterized by heat-pressing the moved woody laminated mat in the mold.

  5. A side guide for transporting a wood laminate mat according to claim 4 (invention 4) is a press forming device for a wood laminate mat in which elongated wood pieces mixed with a binder are substantially aligned in the length direction by an orientation laminate device. A side guide provided on a transport device that transports the sheet to the inner surface of the side guide, and a sheet having elasticity with a leading end extending from an end portion in the advancing direction of the side guide is provided. The interval between the portions is narrower than the interval between the rear end portions of the side guides.

  In the present invention, the wood species of the wood lumber used mainly includes conifers such as cedar, cypress, spruce, fur, radiata, pine, and broad-leaved trees such as birch, apton, chamelere, sengonlaut, and aspen. Not only plant materials produced from forests, but also plant materials produced outside forests, such as bamboo and goryan, can be included.

  Forms that can be used as raw materials are not particularly limited, but include, for example, the above logs of logs, raw materials such as thinned wood, scraps generated at factories and residential construction sites, waste pallet materials discarded after transportation of components, and construction Examples include demolition waste materials generated during dismantling.

  The processing method to make the above-mentioned raw material wood pieces is a method of cutting a veneer processed with a rotary cutter into a chopsticks shape to make a stick, a method of cutting a log into a strand with a rotary blade of a flaker, a uniaxial crushing A method according to the situation, such as a method of crushing wood by rotating a roll with a cutter on the surface of the machine, can be used.

  And if the thickness of the timber pieces crushed as described above is uneven, it is classified into pieces of wood with a certain range of thickness as necessary. Although it will not specifically limit if it can classify | categorize with thickness, For example, the method of classifying using classifiers, such as a wave roller system, is mentioned. The wave roller type classifier is a device that classifies continuously based on the thickness of the wood pieces.

  In addition, the wood pieces obtained in this way are usually mixed with a binder by coating or the like before stacking, but as a binder, phenol resin, urea resin, isocyanate, etc., plywood or particle board Examples include wood industry adhesives used, and these binders may be used alone or in combination of several kinds. The binder may be in liquid or powder form, but in the case of liquid, it is generally sprayed onto a wooden piece, or mixed with a wooden piece and mixed with the wooden piece in advance in the oriented lamination apparatus. In the case of a powder form, the powder is generally supplied to the orientation laminating apparatus in a state of being uniformly mixed with the wood piece. As the mixing device, a drum blender or the like is preferably used.

  Moreover, although the amount of the binder mixed depends on the density, shape, and surface state of the wood piece, it is usually preferably 1 to 20% by weight with respect to the weight of the wood piece. If it is less than this, the adhesion becomes insufficient, and if it is more than this, the adhesion performance is wasted, and the appearance and nailing performance of the obtained wood-based composite material may not be woody.

  Furthermore, it is preferable that the wood piece has a constant moisture content. By making the water content constant, the quality variation of the wood-based composite material during production is eliminated. A preferable water content is 0 to 30%. As a method for keeping the moisture content constant, for example, a method of leaving a piece of wood material for a certain period of time in a temperature-controlled oven can be mentioned. Incidentally, when left in an oven at 50 ° C. for 24 hours, the water content is maintained at about 5%.

  The wooden piece is of an elongated shape. That is, it is a piece of wood material in which the fiber direction of the tree is the same as the length direction, and the thickness and width are both 1 mm or more and there is no upper limit, but the thickness of the wood-based composite material to be produced It is preferable to set it to 1/5 or less. The length is preferably at least 5 times the dimension of the larger width or thickness. Furthermore, the wood composite obtained from the wood laminate mat is preferably subjected to annealing treatment, cutting and sanding in order to improve the dimensional accuracy and surface properties after press molding.

  Note that aligning almost the length direction means imaging the surface state after stacking, measuring the angle between the long axis direction of the long wooden piece and the direction of the reference line, and calculating the average value. Do it. The state of being oriented substantially in one direction means a state in which the average value of the angle formed by the direction of the reference line and the major axis direction of the wood material side is within a range of ± 30 degrees by this method.

  A conveyance tool means the belt conveyor or call board which mounts a wooden laminated mat and moves on a conveyance apparatus. A coal plate is a metal plate of a predetermined size such as stainless steel, iron, aluminum, etc., on which a piece of wooden material oriented or stacked, ie a wood laminate mat, is placed and transported. is there. A wood laminate mat in which pieces of wood material mixed with a binder are oriented and stacked is placed on a transport device, and is transported to a press molding device via a stock yard as necessary.

  A plurality of pairs of side guides that come into contact with both side surfaces of the wood laminate mat are disposed on the transport device. The wood pieces are oriented between the side guides and stacked in a mat shape to form a wood laminated mat, so that it is difficult to collapse in the direction perpendicular to the orientation direction, that is, the transverse direction of the wood laminated mat, but in its length direction. Tends to collapse. That is, the side guide has a function of preventing both side surfaces of the wood laminate mat from collapsing during conveyance.

  Therefore, the side guide only needs to prevent both sides of the wooden laminated mat from collapsing during movement, so the pair of strips of the side guide contacting the both sides of the wooden laminated mat can be general plates. In particular, the material is not limited.

  Each of the pair of side guide plates may be disposed in contact with both end faces of the transfer device, and is connected with a plate or a rod so as to bridge the upper ends of the pair of side guide plates, from the front or the rear. The shape that can be seen may be a tunnel shape and may be a self-supporting shape. If it is a self-supporting shape, place it on the transport device, cover the wooden laminated mat, and use it with the pair of side guide plates coming into contact with both sides of the wooden laminated mat from above Can do. In any case, the collapse of both side surfaces of the moving wooden laminated mat can be prevented.

The connected side guide is supported from the side of the frame that supports the feed roller or belt conveyor on which the transport device is mounted, and can be moved at the same speed in the same direction in synchronization with the moving speed of the transport device. Good to be. That is, for example, when the conveying device is a call board, the call board and the side guide on which the wooden laminated mat is placed are integrated until the call board reaches the side frame arranged on the lower pressure platen of the press forming apparatus. When the call plate is inserted under the side frame, it comes into contact with the side frame and stops. Further, when the insertion of the call plate is completed, if it can be moved back to the original location, it is easy to move the next call plate to the press molding apparatus.

  As a side guide support method, for example, a side guide driving device such as an air cylinder, a hydraulic cylinder, or a motor provided with a side guide support is fixed to a support housing of the transport device, and the side guide is supported on the side guide support. And the side guide is moved in synchronization with a conveying device such as a call board.

  The lower side of the side guide and the upper surface of the conveying device are not always in a straight line state because they are scratched or warped during use. Therefore, an elastic body such as rubber is provided at the lower end of the side guide, and the elastic body is deformed to move the side guide so that the movement is smooth and the surface of the transport device or the like is not damaged. You may be made to do.

  For example, when the conveying device is a call board, the distance between the pair of side guides may be narrower by about 1 mm to 5 mm, usually about 3 mm, than the distance on the rear side of the call board. This is used by adding side guides when the transport distance is too long to provide a continuous side guide over the entire length of the transport path. This is because when the side guide is replaced with the next side guide, both sides of the wooden laminated mat can be smoothly replaced without collapsing.

  The wooden laminated mat is moved by a transport device, and if necessary, temporarily stored in a stock yard provided in the middle of the transport device, transported from there if necessary, and then weighed and then transported to a press molding device. Is done. The wood laminate mat conveyed to the press molding apparatus is inserted into the pressure molding die so as not to disturb the orientation and shape thereof.

  The stock yard is equipped with a horizontal feed device using a chain conveyor that moves up and down with an air cylinder, etc., and a stock stand that stores a wooden board with a wooden laminated mat. A general method of turning off may be used.

  In the stock yard, a pair of stock yard side guides are arranged in advance at predetermined positions. When the call board that has been transported with the wood laminate mat comes to the side guide position, the call board is inserted under the side guide for the stockyard with the wood laminate mat placed thereon. Therefore, the side guides are exchanged from the side guides provided in front of the stockyard to the side guides for the stockyard on both side surfaces of the wood laminate mat.

  At this time, there may be a slight shift between the inner side surfaces of the pair of side guides. If you try to move the wooden laminated mat in a state where there is a shift, both sides of the front end of the wooden laminated mat will be There is a possibility that any of the end portions will contact one of the end surfaces of the stockyard side guide pair, and the stacked state and orientation state of the wood laminate mat may be disturbed. Therefore, the facing distance between the side guide pairs for the stockyard may be the same as the distance between the pair of side guides before the stockyard, but the distance may be widened within 5 mm, preferably about 2 mm to 3 mm.

  Also, the side guide for the stockyard and the side guide in front of the stockyard may be installed so that the facing distance between the front end portion and the rear end portion of any side guide is the same, or the side guide for the stockyard. It is also possible to widen the facing distance only at the upstream end of the side, or narrow only the facing distance at the downstream end of the side guide in front of the stockyard.

  Further, the insertion device for inserting the call plate on which the wooden laminated mat is placed into the molding die of the press forming device includes a feed roller on which the call plate is placed, a side guide fixed to a frame that supports the roller, It consists of a sheet (hereinafter referred to as a guide sheet) provided on the side guide, and the frame is supported by a lifter from below, and the entire insertion device on which the call plate is placed is raised or lowered. When the lifter is lowered to the lowest position, the frame is placed on the load cell, the entire weight is measured, and the weight other than the wood laminate mat is known in advance, so the weight of the wood laminate mat is calculated.

  The call plate is inserted into the lower part of the molding die of the press machine with the lifter raised upward. The molding die includes a lower pressure plate, a pair of side frames and front and rear frames which are provided above the lower pressure plate by the thickness of the call plate, and an upper pressure plate which is lowered into the frame. The interval between the opposing surfaces of the side frames is substantially the same as the width of the wood laminate mat. In addition, the outer space between the side frames is set to be equal to or wider than the width of the call plate so that both end portions of the call plate are surely inserted under the molding die side frame.

  On the inner side surface of the side guide for conveyance, the side guide for the stockyard or the side guide provided in the insertion device (hereinafter, all side guides are collectively referred to as a side guide), an elastic guide sheet is provided on the side guide. It extends from the traveling side tip. This guide sheet enters the inner side surface of the next side guide or the inner side surface of the molding die side frame when the tip end portion of the side guide comes to the end surface position of the next side guide or the molding die side frame. Even if the inner side surface of the side guide and the inner side surface of the next side guide or the inner side surface of the side wall of the molding die are not flush with each other, there is a step where the abutting portions thereof continue smoothly. To function.

  This guide sheet has a smooth surface and low friction with the wooden piece, has high heat resistance because it comes into contact with the press side frame, and has elasticity to withstand the lateral pressure of the wooden piece. What has functions, such as being highly abrasion-resistant, being hard to react with the isocyanate type adhesive agent apply | coated to the wood piece, and having high non-adhesiveness, is required. For example, as an example, thermoplastic resins such as polyethylene, polypropylene, vinyl chloride resin, fluorine resin, silicon resin, polyamide, etc .; composite resins in which reinforcing fibers are used in combination with thermoplastic resins or thermosetting resins; iron, stainless steel Sheets of metal such as aluminum and brass, thin plates, or those obtained by releasing the surface of these sheets can be used, and glass fiber reinforced fluororesin sheets are particularly preferably used.

  The method for fixing the guide sheet and the side guide plate is not particularly limited as long as no protrusions or the like appear on the surface that contacts the wood laminate mat. For example, fixing from the guide sheet surface side to the side guide with a bolt or the like is not desirable because the bolt head comes into contact with the wooden laminated mat and causes a mat crack. Preferably, an adhesive, a resinous tape with a pressure-sensitive adhesive, a plate magnet with a pressure-sensitive adhesive, or the like is used so that no protrusions appear on the surface of the guide sheet. Alternatively, the guide sheet and the side guide may not be fixed, but the guide sheet may be fixed above the side guide and suspended like a curtain and held in contact with the inner surface of the side guide.

  The guide sea guide sheet may be used in combination with the functions of the above-described rubber plate or the like provided so that the wooden laminated mat does not spill from the gap between the side guide lower end and the conveying device. That is, the lower end of the guide sheet is preferably in contact with a conveying device such as a call plate, and the clearance between the lower end of the guide sheet and the upper surface of the conveying device is preferably 5 mm or less. When inserting the wood laminate mat into the mold side frame, the clearance is preferably 5 mm or less so that the wood material piece does not spill out from the lower end of the guide sheet. It is preferable to be in contact with the upper surface. In addition, it may be bent toward the lower end inside of the guide sheet, but if it is bent too much, the lower ridge line on both sides of the wooden laminated mat will be rounded, so that the wooden piece will not fall out from the gap Should stop.

  The extension length of the guide sheet from the tip of the side guide is not particularly limited, but if it is too short, it is not possible to cover an abrupt step of the insertion device. Also, if the tip of the inserted guide sheet droops or spreads outward even if it is too long and the tip of the side guide comes to the position of the stock yard or molding die side frame, the side guide for the stock yard The end face of the side frame does not enter inside, and the connection surface is not smooth. Therefore, the length of the guide sheet to be inserted may be appropriately set according to the material or the like, but in the case of a glass fiber reinforced fluororesin sheet, it is usually set to about 20 to 50 mm.

  The guide sheet is usually provided over the entire inner surface of the side guide, and its tip end portion extends to extend from the tip end of the side guide. As for the guide sheet of the portion extending to the tip, a separately prepared guide sheet may be sandwiched between the side guide and the guide sheet provided on the inner surface of the side guard. The material of the separately prepared guide sheet may be the same as or different from the guide sheet used for the side guide.

  The guide sheet may be bent so that the tip extended from the side guide faces slightly inward. In other words, the position of the call board placed on the insertion device moves together with the insertion device due to operations such as loading and unloading into the stock yard and weight measurement. Deviation occurs between the inner side surface of the next side guide and the inner side surface of the molding die side frame. That is, in the movement work of the wood laminate mat, when the side guide comes to a predetermined position of the next side guide or side frame end surface, the side guide inner surface and the side guide inner surface of the wooden frame or the inner side surface of the side frame are not flush with each other. In this state, if you try to insert the caul board into a predetermined position below the next side guide or below the side frame located above the lower pressure plate, Any one of the tips on both sides is caught by the step, and the shape and orientation of the wood laminate mat are disturbed.

  Therefore, even if there is a slight deviation between the side surface of the wood laminate mat and the inner side surface of the next side guide or the inner side surface of the molding die side frame, the guide sheet is surely the next side guide or side frame. You must enter between. The distance of deviation varies depending on the degree of misalignment that occurs during operation of each device for conveyance, stockyard, or weight measurement, but is usually about 2 mm to 3 mm, so the bending margin that the guide sheet is bent inward is not It is desirable that the thickness is at least about 5 mm.

  In the first aspect of the present invention, a guide sheet having elasticity is provided on the inner side surface of the side guide and extends from the front end of the side guide, and the side guide moves so that its end portion is positioned at the end position of the next side guide. When it comes, the guide sheet extension part enters the inside of the next side guide, so move the conveying device with both side surfaces of the wooden laminated mat placed on the conveying device in contact with the sheet Then, the upstream side guide and the downstream side guide are brought into contact with each other while the extension end of the seat provided in the upstream side guide is inserted into the upstream side of the downstream side guide. Therefore, even if the contact surface between the side guide end surface and the next side guide end surface is slightly deviated and a step is formed on the inner surface of the abutting portion, the wooden laminated mat is moved downstream while sliding the both sides of the seat surface. You can move to the side guide.

  In the second aspect of the present invention, a guide sheet having elasticity is provided on the inner side surface of the side guide and extends from the tip of the side guide, and the side guide moves so that its end is positioned at the end position of the mold side frame. Since the guide sheet extension part enters the inside of the mold side frame when it comes, the transport device is moved with both side surfaces of the wood laminate mat placed on the transport device in contact with the sheet. Then, the upstream side guide and the mold side frame are brought into contact with each other while the extended end of the sheet provided in the side guide is inserted into the mold side frame. Therefore, even if the contact surface between the side guide and the mold side frame is slightly shifted and a step is formed on the inner side surface of the butted portion, the wooden laminated mat is placed on the mold side frame while sliding the both sides of the sheet surface. Therefore, it can be moved into the mold side frame without destroying the orientation state of both side surfaces.

  In the invention 3, the guide sheets having elasticity are provided on the inner side surfaces of the plurality of pairs of side guides arranged in a row on the conveying device and are extended from the tip of the side guide, and are placed on the conveying device. When the transport device is moved or transported to the stock gear while both sides of the laminated mat are in contact with the sheet, the extended end of the sheet provided on the side guide is inserted inside the next side guide. Then, the side guide and the next side guide are brought into contact with each other, and the wooden laminated mat is moved to the next side guide while sliding both sides of the sheet surface. Also, when transporting the wood laminate mat into the mold side frame, the side guide and the mold side frame are in contact with each other while the extended end of the sheet provided on the side guide is inserted inside the mold side frame. The wooden laminated mat is moved into the mold side frame while sliding the sheet surface on both sides. Therefore, the wood laminate mat moved into the mold can be hot-pressed without breaking both sides.

  In invention 4, the sheet | seat which has the elasticity to which the front-end | tip extended from the advancing direction edge part of this side guide is provided in the inner surface of the side guide provided on the conveying apparatus of a wooden laminated mat, and the extending | stretching front-end | tip of a sheet | seat Since the interval between the parts is narrower than the interval between the rear ends of the side guides, when the side guide is brought into contact with the next side guide or the mold side frame, the inner side of the side guide or mold side frame that the next sheet follows Inserted into. Therefore, the side guide can be suitably applied particularly to the first to third aspects of the invention.

  Next, the present invention will be described with reference to the drawings. The side guides used in the conveying device, the stock yard, or the insertion device are all provided with a guide sheet on the side guide, and the guide sheet mounting method and its operation mechanism are the same. As a representative example, a case where the transport device is a call board will be described.

  FIG. 1 is an example of a conveying device comprising a call board placed on a roller, a side guide fixed to a frame, and a guard sheet provided thereon, in the method for conveying a wood laminate mat of the present invention, Is a side view thereof, (b) is a front view thereof, and (c) is a plan view thereof. FIG. 2 shows an example of a side guide and a guard sheet provided thereon, (a) is a side view thereof, (b) is a side view of another example, and (c) is a side view of still another example. . FIG. 3 shows an example of an embodiment in which a call board is conveyed using a side guide provided with a guide sheet. The embodiment of the embodiment in which the side guide of the wood laminate mat is replaced and the call board is inserted into the side frame of the molding die. An example is shown, (a) is a plan view of a state in which a call plate placed on an insertion device is disposed on an end surface of a molding die side frame, and (b) is a diagram illustrating a case where the call plate is inserted under the molding die side frame. FIG. 4C is a plan view showing a state in which the call plate is disposed at a predetermined position on the lower pressure plate and the side guide is away from the mold. FIG. 4 is a plan view showing an example when the center lines of the side guide and the mold side frame are displaced. FIG. 5 is an apparatus configuration diagram showing an outline of a molding line from a wooden material piece orientation laminating apparatus to a press molding apparatus in the production of a wood-based composite material.

  The conveyance device 1 includes a roller 3 provided on the frame 2, a conveyance tool (a call plate in this example) 4 placed on the roller 3, and a pair of side guides 51 disposed above both sides of the call plate 4. , 52 and guide sheets 61, 62 provided on the inner side surfaces of the respective side guides 51, 52. The side guides 51 and 52 are fixed to the frame 2 by columns 511 and 521, and the conveying tool 4 moves the conveying device 1 from the lower part of the orientation laminating device A to the press forming device D. A wood laminate mat M in which elongated wood pieces mixed with a binder are substantially aligned in the length direction is placed on the call board 4 and both side surfaces thereof are provided on the inner side surfaces of the side guides 51 and 52. The guide sheets 61 and 62 are in contact with each other.

  The side guides 51 and 52 are disposed along both side surfaces approximately 5 mm above the call plate 4, and the guide sheets 61 and 62 made of a glass fiber reinforced fluororesin sheet having a thickness of 0.35 mm are the side guides 51 and 52. Are provided on the inner side surfaces of the side guides 51 and 52 so as to eliminate a gap between the lower end of the side plate and the upper surface of the call plate 4. That is, a part of the lower side of the wooden laminated mat M protrudes below the lower ends of the side guides 51 and 52, but the entire side is in contact with the guide sheets 61 and 62. The protruding length may be slightly increased so that the lower end portions of the guide sheets 61 and 62 are bent slightly inward.

  The leading ends of the guide plates 61 and 62 on the advancing side of the call plate 4 extend from the side guides 51 and 52. Although the extension length is 40 mm, this length is preferably about 20 mm to 50 mm. If it is too short, it may be difficult to cover this when the level difference between the side guides 51, 52 and the mold side frames 101, 102 is too large. Bends outward during conveyance and cannot be inserted inside the mold side frames 101, 102, or the tips of the guide sheets 61, 62 hang down when inserted inside the mold side frames 101, 102 There is a fear.

  The guide sheets 61 and 62 are bonded to the inner side surfaces of the side guides 51 and 52 with an adhesive. Examples of the adhesive include rubber adhesives such as SBR (styrene butadiene rubber), NR (natural rubber), EVA (ethylene vinyl acetate copolymer resin); thermosetting adhesives such as urethane resin and epoxy resin; And an adhesive such as acrylic, and a double-sided pressure-sensitive adhesive tape or sheet obtained by applying these to a base material such as a nonwoven fabric. In addition, if the guide sheets 61 and 62 are provided so as to hang from the upper side of the side guides 51 and 52 along the inner surfaces of the side guides 51 and 52, the guide sheets 61 and 62 are easy to replace and easy to maintain. May be.

  Each of the side guides 51 and 52 is supported from the side, and is movable at substantially the same speed in the same direction as the moving speed of the call plate 4. That is, the wood laminate mat M and the side guides 51 and 52 placed on the call plate 4 reach the side frames 101 and 102 disposed on the lower pressure plate 100 of the press molding apparatus D until the call plate 4 reaches the side frames 101 and 102. Are moved together, and when the call plate 4 is inserted below the side frames 101 and 102, they collide with the side frames 101 and 102 and stop. Further, when the insertion of the call plate 4 is completely completed, the call plate 4 may be movable so as to return to the original location.

  As a method for supporting the side guides 51 and 52, for example, a side guide driving device such as an air cylinder, a hydraulic cylinder, or a motor provided with the side guide supports 511 and 521 is fixed to the frame 2 of the transport device 1, A method in which the side guides 51 and 52 are fixed to the side guide supports 511 and 521 and the side guides 51 and 52 are moved at the same speed in the same direction as the call plate 4 conveyed on the roller 3 (both not shown). Etc.

  Since the side guides 51 and 52 are fixed to the frame 2, if the frame 2 itself moves, the side guides 51 and 52 move accordingly. That is, in this case, both side surfaces of the wood laminate mat M are not displaced from the side guides 51 and 52, but when the frame 2 is stopped and only the call plate 4 is moved, both side surfaces of the wood laminate mat M are side guides 51. , 52 and slides. At this time, if the front ends of the side guides 51 and 52 do not come into contact with the next side guide or the like and there is a gap, even if the guide sheets 61 and 62 are present, both side surfaces of the wood laminate mat M may enter the gap. Therefore, when the frame 2 is stopped, the side guides 51 and 52 are moved forward by the drive device described above, and the call plate 4 is moved after contacting the next side guide or the like.

  When the wooden laminated mat M is temporarily stored in the stock yard in a state where it is placed on the call board 4, a side guide dedicated to the stock yard is arranged on the stock yard transfer device, and the wooden laminated mat M is placed on the call. The plate 4 is inserted under the side guide. At this time, the guide sheets 61 and 62 provided on the side guides 51 and 52 enter inside the side guide dedicated to the stockyard, and both side surfaces of the wooden laminated mat M are on this side. It moves while sliding so as to spread out. (Refer to each left side of FIGS. 3A, 3B, and 3C.)

  FIG. 3 shows an example of the state of the step. In terms of design, there is no deviation as shown in FIG. FIG. 3B shows a case where the center line is slightly shifted, and FIG. 3C shows a case where the center line is largely shifted. Even when the guide sheets 61 and 62 are provided as shown in (c), the level difference between the surfaces of the abutting portions between the upstream side guides 51 and 52 and the next side guide or the mold side frame is too large. Thus, the side surface of the wood laminate mat M may be collapsed when the wood laminate mat M is moved. Normally, the level difference occurring at this point is within about 3 mm, and by providing the guide sheets 61 and 62, a smooth level difference is formed as shown in FIG. 3 (a) or FIG. 3 (b).

  The press molding apparatus D is a press machine using high pressure steam heating, and is a general type molding apparatus. The wood laminate mat M is placed between the side frames 101 and 102 disposed on the lower pressure plate 100, and is molded while being pressed by the upper pressure plate. As the molding die 10, at least the side frames 101 and 102 are necessary, and the front and rear end portions of the wooden laminated mat M are not pressed at the time of press molding even if there is no mold frame (not shown) in the longitudinal direction of the wooden laminated mat M. It does not need to be used because it does not collapse. However, the front and rear frames are preferably used because they are heated uniformly from the inside of the material by high-pressure steam.

  The side frames 101 and 102 are arranged above the lower pressure plate 100, and a gap is provided between the lower ends of the side frames 101 and 102 and the upper surface of the lower pressure plate 100 so that the call plate 4 can be inserted. . Therefore, when the wood laminate mat M is inserted into the molding die 10 of the press molding apparatus D, the both sides of the call board 4 are inserted under the side frames 101 and 102 while the wood laminate mat M is placed on the call plate 4. The At the time of press molding, the side frames 101 and 102 are lowered onto both sides of the call plate 4 and pressed against each other, and the upper pressure plate 103 pressurizes and heats the wood laminate mat M to form a wood-based composite material. .

  When the call plate 4 placed on the conveying device 1 advances and the front ends of the side guides 51 and 52 abut against the end surfaces of the side frames 101 and 102 disposed above the lower pressure plate 100 of the press molding device D, the guide sheet 61 and 62 are inserted inside the side frames 101 and 102. Thereafter, when the call board 4 is inserted under the side frames 101 and 102 with the wood laminate mat M placed thereon, the wood laminate mat M slides with its both side surfaces in contact with the guide sheets 61 and 62. It is moved to move between the side frames 101 and 102.

  At this time, even if the abutting portions of the side guides 51 and 52 and the side frames 101 and 102 are slightly displaced and not flush with each other, the guide sheet covers the step, so both side surfaces of the wood laminate mat M Can be transferred smoothly without any delay.

  When the wood laminate mat M is disposed inside the side frames 101 and 102 of the press molding apparatus D, the side guide is moved away from the mold 10. Next, it descends in contact with both side surfaces of the wood laminate mat M on which the side frames 101 and 102 are arranged, presses both ends of the call plate 4 and fixes them to the upper pressure plate surface 100, The upper pressure platen 103 is lowered between 101 and 102 and comes into contact with the upper surface of the wood laminate mat M, and is heated with high-pressure steam while appropriately compacting it, and the wood-based composite material P is manufactured at a predetermined time and temperature. Is done. After heating, demold and take out the product.

  In the manufacturing apparatus using the side guide of FIG. 1, the distance between the opposing surfaces of the side frames 101 and 102 of the press molding apparatus D is 310 mm, and the distance between the inner surfaces of the side guides 51 and 52 of the insertion apparatus is 305 mm. . When the guide sheet is not provided on the inner surface of the side guide, the side collapse of the wood laminate mat M occurred at a frequency of 20% or more. However, if the wood laminate mat M is inserted with the guide sheet provided, the wood laminate mat M The side collapse did not occur.

In the method for transporting a wood laminate mat of the present invention, it is an example of a transport device comprising a call plate placed on a roller, a side guide to which a frame is fixed, and a guard sheet provided thereon, (a) is a side view thereof. (B) is the front view, (c) is the top view. FIG. 2 shows an example of a side guide and a guard sheet provided thereon, (a) is a side view thereof, (b) is a side view of another example, and (c) is a side view of still another example. . It is an example of embodiment which conveys a call board using a side guide provided with a guide sheet, and shows an example of an embodiment in which a call board is inserted into the side guide replacement of the wood laminate mat and the molding die side frame. (A) is a top view of the state which the call board mounted in the insertion apparatus has been arrange | positioned at the end surface of a shaping die side frame, (b) is the state in which the call plate is being inserted under the shaping mold side frame FIG. 4C is a plan view showing a state in which the call plate is disposed at a predetermined position on the lower pressure plate and the side guide is moved away from the mold. It is a top view which shows an example when the centerline of a side guide and a shaping die side frame has shifted | deviated. It is an apparatus block diagram which shows the outline of the shaping | molding line from the orientation lamination apparatus of the wood material piece in the manufacture of a wood type composite material to a press molding apparatus.

Explanation of symbols

1 Conveying device 2 Frame 3 Roller 4 Conveying device (call board)
51, 52 Side guide pair 511, 521 Side guide support column 61, 62 Guide sheet 10 Mold 100 Lower pressure plate 101, 102 Side frame A Orientation laminating device B Stockyard C Light weight and insertion device D Press molding device E Lift M Wood laminate mat

Claims (4)

  A wood-based composite material obtained by transporting a wood laminate mat obtained by stacking elongated wood pieces mixed with a binder in a lengthwise direction with an orientation laminator to a press molding apparatus and pressing or heating with the press molding apparatus. A plurality of pairs of side guides are arranged in a row on the conveying device, and the tip is on the inner side surface of the side guide from the end in the traveling direction of the side guide. An extended elastic sheet is provided, the wooden laminated mat is moved on the conveying device in a state where both side surfaces thereof are in contact with the sheet, and the extended end of the sheet provided on the upstream side guide is The upstream side guide and the downstream side guide are brought into contact with each other while being inserted into the upstream side sheet inside the downstream side guide, and the wooden laminated mat is placed on the downstream side while sliding the sheet surface on both sides. Transfer method of the wood laminate mat thus being moved to the id.   A wood-based composite material obtained by transporting a wood laminate mat obtained by stacking elongated wood pieces mixed with a binder in a lengthwise direction with an orientation laminator to a press molding apparatus and pressing or heating with the press molding apparatus. A plurality of pairs of side guides are arranged in a row on the conveying device, and the tip is on the inner side surface of the side guide from the end in the traveling direction of the side guide. An extended elastic sheet is provided, and the wooden laminated mat is moved on the conveying device in a state where both side surfaces thereof are in contact with the sheet, and the extended end of the sheet provided in the side guide is press-molded. The side guide and the mold side frame are brought into contact with each other while being inserted inside the mold side frame of the apparatus, and the wooden laminated mat is moved into the mold side frame while sliding the sheet surface on both sides thereof. Wood laminate Tsu door method of transport.   A wood-based composite material obtained by transporting a wood laminate mat obtained by stacking elongated wood pieces mixed with a binder in a lengthwise direction with an orientation laminator to a press molding apparatus and pressing or heating with the press molding apparatus. A plurality of side guides are arranged in a row on the conveying device, and an elastic sheet is provided on the inner side surface of the side guide, the tip of which is extended from the end of the side guide in the traveling direction. The wooden laminated mat is moved on the conveying device in a state where both side surfaces thereof are in contact with the sheet, and the extended end of the sheet provided on the upstream side guide is used as a metal for the downstream side guide or the press molding device. The upstream side guide and the downstream side guide or the mold side frame are brought into contact with each other while being inserted inside the mold side frame, and the wooden laminated mat is moved to the downstream side guide or the metal while sliding the sheet surface on both sides. Type Moves into the frame, the production method of the wood composite material, characterized in that the wood laminate mat is moved into the mold to heat press. A side guide provided on a transporting device for transporting a wood laminate mat in which elongated wood pieces mixed with a binder are substantially aligned in the length direction by an orientation laminating device to a press forming device, The inner surface is provided with a sheet having elasticity with the leading end extending from the end portion in the traveling direction of the side guide, and the interval between the extending leading end portions of the sheet is narrower than the interval between the rear end portions of the side guides. Side guide for transporting wooden laminated mats.

Images