JP2011201016A - Method for processing veneer using horizontal multistage press, and the horizotal multistage press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain smooth hot pressing of a veneer using a horizontal multistage press.SOLUTION: The horizontal multistage press includes a plurality of stages of hot platens 4A and 4B between left and right frames 1A and 1B so as to be closed/separated from each other. Required accessary members are limitedly provided before, after, and below the hot platen group. The upper part of the hot platen group is opened. In front of the hot platen group, a plurality of veneers 11 set on standby by matching a fiber direction with a vertical direction are individually gripped by a conveyance gripping member to be moved above the hot platen group, and then the veneers 11 are lowered into gaps between the hot platens 4A and 4B to release the gripping. After the conveyance gripping member is raised above the hot platen group, the hot platens 4A and 4B are closed to hot-press each veneer 11 for a required time. Then, after the hot platens 4A and 4B are separated, each hot-pressed veneer 11 is gripped by using the conveyance gripping member, raised above the hot platen group, and then transferred to an appropriate place after the hot platen group to release the gripping.

Description

  The present invention relates to a veneer veneer processing method using a horizontal multistage press and an improvement of the horizontal multistage press.

  Conventionally, as a device used for heat-pressing a wood-based plate material, a so-called hot press in which a plate material is sandwiched between hot plates heated to an appropriate temperature by an appropriate heat source such as heated steam, heated oil, and an electric heater. However, when it is intended to increase the processing capacity by providing the heating plate in a multi-stage shape, when the form provided in a multi-stage shape in the vertical direction is taken, the uppermost stage part and the lowermost stage part In this case, the total weight of the hot platen applied to the plate material will be significantly different, resulting in differences in the amount of flattening of the plate material and the smoothness of the surface due to heat pressure, resulting in a decrease in plate yield. Or, inconvenience such as non-uniform quality of the plate material occurs.

  Therefore, for example, as disclosed in Patent Document 1 and Patent Document 2, etc., a plurality of heating plates that can be opened and closed at equal intervals between the left and right frames are arranged in parallel. Attempts have been made to eliminate the inconvenience by using a so-called horizontal multi-stage press, which has resulted in a corresponding result. A transport conveyor is provided below the group, and a plurality of plates to be processed are transported in the horizontal direction from the front of the hot platen group and carried into the interval between the hot platens. After slightly lifting upward, each hot platen is operated close to each other to heat-press the plate group, and after the required time has elapsed, each hot platen is operated separately from each other to release the hot pressure, and if necessary After pushing down each board slightly downward, the processed board group is leveled Is conveyed to the direction, it is customary to adopt a process embodiment for unloading rearward heat plate group from the intervals of the heating plates.

  Thus, as described above, prior to the heat pressure, the intention to lift each plate material slightly upward is to adjust the relative position of each plate material and the heat plate to equalize the heat pressure. In addition, even if any plate material may adhere to the hot platen due to the adhesive action of the adhesive or resin that exudes from the plate material due to the heat pressure, for example, as disclosed in Patent Document 2 above. By providing a room where all plate materials can be pushed down slightly through connecting beams, pushers, etc., it is possible to release the adhesion, and to optimize the carry-out of the plate group by the conveyor. When the plate material to be processed is a plate material having rigidity corresponding to both the vertical direction and the horizontal direction, such as a plywood and a decorative board, for example, it can be processed without any particular trouble.

Japanese Patent Publication No. 3-39442 Japanese Patent Publication No. 3-39443

  However, only in the case where the plate material to be processed is a veneer single plate (hereinafter simply referred to as a single plate), according to the processing form as described above, due to the characteristics of the single plate, a good loading / unloading is not necessarily performed. Inability to do so causes a problem that processing is delayed or disabled. In detail, as is well known, the veneer is relatively stiff in the direction parallel to the fiber direction (same direction), but extremely soft in the direction orthogonal to the fiber direction. This is a unique material with strength anisotropy.When transported through the transport conveyor as described above, the tip in the transport direction is, for example, a hot platen or insertion guide when the fiber direction is directed to the vertical direction. Since the rear end side in the transport direction is likely to buckle only by receiving a slight resistance due to contact or the like, there is a high possibility that smooth transport will be delayed. As a result, as shown in the drawings of Patent Documents 1 and 2 above, , The fiber direction must be transported in the horizontal direction, but when the single plate is erected so that the fiber direction is in the horizontal direction, the single plate is compared, except when the single plate is relatively thick. If it is thin, the upper and lower parts due to its own weight Because of not having a degree of rigidity to withstand buckling, it is difficult per se to maintain the proper conveyance posture, smooth conveyance can not really want.

  Still further, even if a single plate is relatively thick, if any single plate is bonded to a hot platen by the adhesive action of the resin, the connecting beam as disclosed in Patent Document 2 is used. Even if the upper surface of the veneer is pushed downward through a pusher, etc., it will push in a soft direction that is not suitable for transmission of the pushing force, so at least the adhesion of the portion below the center of the veneer is released. This is extremely difficult, and within the interval of the hot platen, a phenomenon occurs in which the portion above the central portion of the bonded single plate buckles and becomes clogged, and the subsequent processing is disabled.

  The present invention was developed in order to solve the problems caused by the characteristics of the single plate in the horizontal multi-stage press as described above. Specifically, as a basic invention, it is opposed to the left and right. When heat-pressing a plurality of single plates at the same time using a horizontal multi-stage press in which a plurality of heating plates that can be opened and closed at equal intervals between frames are installed side by side, the left and right frames Connecting members such as beds (bases), cross beams, connecting arms, etc., guide tracks such as guide tracks and guide wheels that guide the movement of each heating plate in the left-right direction, and open intervals for each heating plate are equally spaced The upper part of the hot platen group is opened by providing accessory members such as an interval restricting member that regulates the lower end position of each single plate to the front, rear, and lower side of the hot platen group. In the front position of the hot platen group, the fibers are aligned in the vertical direction and stand by side by side. A plurality of single plates are gripped separately using an appropriate number of pairs of gripping members for loading that are appropriately displaceable in the front-rear direction and the up-down direction, transferred to above the heating plate group, and An operation of lowering at least a large part of the veneer within the interval between the respective heating plates, releasing the grip, and raising the holding grip member outside the interval between the respective heating plates, and being supplied within the mutual interval. After each hot plate that has been hot-pressed for the required time is placed in a separated state, an appropriate number of appropriately configured gripping members for unloading that can be displaced in the front-rear direction and the vertical direction are attached to each processed unit. Lower at least the upper end of the plate to a grippable height, hold each processed single plate separately, raise it above the hot platen group, and then to an appropriate place behind the hot platen group The operation of transferring and releasing the gripping is repeated alternately to process a plurality of single plates intermittently. Suggest veneer processing method using a horizontal multistage press according to claim (Claim 1).

  In order to carry out the processing method, a connecting member that connects the left and right frames of the horizontal multi-stage press, a guide member that guides the movement of each heating plate in the left-right direction, and an opening interval for each heating plate are equally spaced. The upper part of the hot platen group is opened by providing accessory members such as an interval restricting member that regulates the lower end position of each single plate to the front, rear, and lower side of the hot platen group. Appropriate number of pairs of shapes that can hold a plurality of single plates that are arranged side by side with the fiber direction aligned in the vertical direction at the front of the heating plate group. The gripping member for carrying in can be moved in the front-rear direction from the front of the heating platen group to the upper side of the heating platen group, and at least most of the gripped single plates are It is possible to move up and down in the vertical direction to a height that can be lowered within the interval of the board, and further, a predetermined interval is provided. A thin plate-like guide plate whose tip is elastically abutted at least over the entire length of the supply area of the single plate on the heating surface of each heating plate facing each other is provided at the lower end, and is in a separated state. Appropriate pairs of gripping gripping members with appropriate shapes that can interpose within the interval between the heating plates and hold each processed single plate separately from above the heating plate group. A horizontal multi-stage press that can move up and down in the vertical direction to a height that can grip at least the upper end of a veneer, and can move in the front-rear direction from the top of the heating plate group to the rear position of the heating plate group. Item 2) and the guide plate provided at the lower end portion are configured to lower the carrying grip member to a height sufficient to release at least most of the single plate bonded to the heating plate from bonding. The horizontal multi-stage press (Claim 3) is connected to the left and right frames of the horizontal multi-stage press. Attachment members, guide members that guide the movement of each heating plate in the left-right direction, interval regulating members that regulate the opening interval of each heating plate at equal intervals, regulating members that regulate the lower end position of each single plate, etc. By providing the members limited to the front, rear, and lower sides of the hot platen group, the upper part of the hot platen group is opened and the fiber direction is set to the vertical direction at the front of the hot platen group. An appropriate number of pairs of gripping members for loading, which are capable of gripping a plurality of single plates arranged side by side in parallel, from the front of the heating plate group to the upper side of the heating plate group, It is movable in the front-rear direction, and is provided so as to be able to move up and down in the vertical direction from above the heating plate group to a height at which most of the gripped single plates can be lowered within the interval between the heating plates, Intervene within the space between each heated platen that is in a separated state, and the regulating member abuts at the lower end of each processed veneer A suitable number of push-up members that are in contact with most of the rest, except for the portion, and lift each single plate by a desired amount separately, can be moved up and down below the heating plate group, and each processed single plate An appropriate pair of unloading gripping members with appropriate shapes can be gripped vertically from the top of the heating plate group to a height at which at least the upper end of each processed single plate can be gripped. A horizontal multi-stage press (Claim 4) that can move up and down and is movable in the front-rear direction from above the heating plate group to the rear position of the heating plate group, and an upper end portion of each processed single plate, It has a push-up member that can be raised to a height that protrudes upward from the upper end of each heating plate, and can hold the upper end of each single plate that protrudes above the upper end of each heating plate. 5. A horizontal multi-stage press according to claim 4, further comprising an appropriate number of pairs of unloading gripping members (claim 5). A thin plate-like guide plate whose tip end elastically contacts at least the entire length of the supply area of the single plate on the heating surface of each heating plate facing each other at a predetermined interval at the lower end portion. 5. An appropriate number of pairs of unloading gripping members capable of intervening in the interval between the heated plates in the separated state and gripping at least the upper end of each processed single plate separately. The horizontal multi-stage press described in claim 6 is proposed.

  According to the method for processing a single plate using a horizontal multi-stage press according to the present invention, the upper side of the hot platen group is open, and the fiber direction is aligned in the vertical direction at the front of the hot platen group. A plurality of single plates that have been kept waiting are gripped separately using an appropriate number of pairs of loading gripping members, transferred to above the heating plate group, and lowered in a direction parallel to the fiber direction, After supplying each hot plate within the interval between the hot plates, and then separating each hot plate that has been hot-pressed for the required time within the interval between the hot plates, an appropriate number of each processed single plate is provided. It is gripped separately using a pair of carrying members for unloading and raised in the direction parallel to the fiber direction up to the upper part of the hot platen group and transferred from above the hot platen group to the rear of the hot platen group. From the above, not only when the veneer to be processed is thick, but even when the veneer to be processed is thin, No possibility that any part of the plate buckles, occurrence of a problem or to disable or stuck process is eliminated. Thus, the horizontal multi-stage press according to claims 2 to 6 can be used for carrying out the processing method. The difference in function based on the difference in each configuration will be described in the examples described later. Will be described in detail later.

It is front explanatory drawing of the main-body part of the horizontal type multistage press which concerns on this invention. It is a partially broken plane explanatory view of the main-body part of the horizontal type multistage press illustrated in FIG. It is side surface explanatory drawing of the main-body part of the horizontal type multistage press illustrated in FIG. It is an expansion perspective explanatory view of the space regulation member at the time of separation of each heating platen. It is front explanatory drawing of the single plate carrying-in mechanism of the horizontal type | mold multistage press which concerns on this invention. It is side surface explanatory drawing of the single plate carrying-in mechanism illustrated in FIG. It is back surface explanatory drawing of the single plate carrying-out mechanism of the horizontal type multistage press which concerns on this invention. It is side surface explanatory drawing of the single plate carrying-out mechanism illustrated in FIG. FIG. 6 is an operation explanatory diagram of the single plate carry-in mechanism illustrated in FIG. 5. It is operation | movement explanatory drawing of the main-body part of the horizontal type multistage press illustrated in FIGS. 1-3. It is an expansion perspective view explanatory drawing of the space | interval control member in the time of each hot plate | board approaching. FIG. 8 is an operation explanatory diagram of the single plate carry-out mechanism illustrated in FIG. 7. FIG. 8 is a partial enlarged operation process explanatory diagram of the single plate carry-out mechanism illustrated in FIG. 7. It is a back surface explanatory view of the single board carrying-out mechanism which consists of another composition. It is back surface explanatory drawing of the single-plate carrying out mechanism which consists of another structure.

  Hereinafter, the present invention will be described in further detail together with an example of the embodiment illustrated in the drawings. However, if the entire horizontal multi-stage press according to the present invention is illustrated so as to be contained in one figure, the display of relatively small devices is too small. As a result, it becomes inconvenient to recognize the details of the configuration, and for the sake of convenience, the whole is divided into three main components, and a part of related devices in other diagrams are displayed for each diagram. Therefore, we tried to recognize the positional relationship between each figure. Further, among the devices constituting the horizontal multi-stage press according to the present invention, with respect to devices other than the devices related to the process of loading and unloading the single plate into the hot platen group, there is no particular limitation, and conventionally known devices Therefore, detailed illustration and description of the devices are omitted or simplified. Further, the control mechanism for controlling the operation of the devices constituting the horizontal multi-stage press according to the present invention is not particularly limited, and if it can be controlled so that each device operates as desired, a conventionally known control means / control mode is known. Therefore, the detailed illustration and description including the control circuit (control system) are omitted. Thus, the description of the embodiments will be described in detail in order by dividing each of the three main components shown separately.

  First, the main body (main part) of the horizontal multi-stage press according to the present invention illustrated in FIGS. 1 to 4 will be described. In FIGS. 1 to 4, 1A is a fixed frame that forms a pair with a movable frame 1B described later. A frame is fixedly provided on the right side of the base 2 that also serves as a pair of front and rear frame guides for the movable frame.

  1B is a window-like hooking portion 1a that engages with a hook portion 9a of a hooked arm 9 described later on each of the front and rear side surfaces (however, the window portion 9a is substantially directly engaged with the hook portion 9a. A movable frame disposed on the opposite side (left side on the base 2) of the fixed frame 1A through a roller 1b attached to the lower part. The frame moving mechanism 8 described later is operated based on the control of a control mechanism (not shown), and is moved forward and in the same direction as the pressing direction of the single plate 11 to be processed. It can be moved backwards. It should be noted that the drilling position and size of the window-like hooking portion are corresponding to the length of the brazing arm so that it can be adapted to changes in the thickness of the single plate, lack of the number of processed sheets, etc. It is necessary to make the drilling position and size having a sufficient margin.

  Reference numeral 2 denotes a pair of front and rear frame guides that guide forward and backward movement of the movable frame 1B, and a portion that permits attachment of a hot plate guide 5, a support member 7, a frame moving mechanism 8, and the like, which will be described later. Also have.

  Reference numeral 3 denotes a pressure plate disposed inside the fixed frame 1A, which is fixed via a heat insulating material 4a so as to be integrated with a single-side heating type heating plate 4A described later. It is provided so as to be movable in the left-right direction along a hot plate guide 5 to be described later via a roller 4b attached to 4A. Based on the control of a control mechanism (not shown), an appropriate arrangement provided on the fixed frame 1A is provided. Several (two in the embodiment, but can be changed if necessary) operation of the hydraulic cylinder 3a is obtained, and it is moved forward and backward in the same direction as the pressing direction of the single plate 11 at appropriate times. Although the illustrated embodiment is a mode in which a hydraulic cylinder for clamping is fixedly provided at a predetermined position, the illustration is omitted if necessary, but it can be applied to a change in the size of a single plate to be processed. Thus, it is possible to adopt a mode in which the hydraulic cylinder is provided so as to be displaceable in the horizontal direction and / or the vertical direction.

  4A is a single-sided heating type hot plate fixed inside the movable frame 1B and the pressure plate 3 via a heat insulating material 4a. The hot plate 4A fixed to the pressure plate 3 is It is provided so as to be movable in the left-right direction along a hot plate guide 5 described later via a pair of rollers 4b attached to the front and rear of the hot plate 4A. As shown in the figure, although chamfering is performed on the upper side of the heating surface or illustration is omitted, it is preferable to provide a single plate insertion guide having an appropriate shape because the single plate can be easily inserted.

  4B is a plurality of double-sided heating type hot plates disposed inside the single-sided heating type hot platen 4A, and will be described later via a pair of rollers 4b attached to the front and rear of each hot platen 4B. It is provided so as to be movable in the left-right direction along the hot plate guide 5. As shown in the drawing, chamfering is performed on the upper side of each heating surface, or illustration is omitted. However, it is preferable to provide a single plate insertion guide having an appropriate shape because the single plate can be easily inserted.

  Reference numeral 5 denotes an inverted L-shaped hot plate guide also serving as an inverted L-shaped pressure plate guide, one end of which is fixed to the fixed frame 1A and the other end of the base 2 via a roller 4b mounted on the upper surface. The forward / backward movement of the single-sided heating type hot platen 4A and the double-sided heating type hot platen 4B integrated with the pressure platen is guided. Although illustration is omitted, if necessary, it is possible to further stabilize the guide by providing a guide groove extending in the left-right direction in an appropriate portion on the upper surface side, which is practical. Also preferred.

  6 and 6a are two sets of space regulating members each attached to the adjacent heating plates 4A and 4B, or adjacent to the heating plates 4B, and each of the front and rear end surfaces of each heating plate. An appropriate number (at least the same number as the number of processed single plates, for example, 1 to 3 sets) is provided, and the access between the heating plates is allowed unconditionally (see FIG. 11), and between the heating plates The separation is regulated so as to allow only a certain limit (see FIG. 4).

  7 is a strip-shaped support member, and when the heating plates 4A and 4B are separated from each other, a plurality of strips (implemented) are formed so as to block the intervals between the heating plates 4A and 4B from below. 7) is attached above the base 2 via a pair of left and right connecting supports 7a, and between the heating plates 4A and 4B via a single plate carry-in mechanism 13 described later. The lower side of the veneer 11 inserted in is supported to prevent falling from within the interval.

  Reference numeral 8 denotes a frame moving mechanism having a drive source 8g including a shaft 8a, a bearing 8b, a chain wheel 8c, an endless chain 8d, a locking tool 8e, a connecting tool 8f, an electric motor with a speed reducer, etc. Based on the control of the control mechanism, the driving source 8g is driven forward and backward to move the movable frame 1B forward and backward as appropriate.

  9 is a hook part 9a that engages with the hook part 1a of the movable frame 1B on the tip side (however, the part that is substantially directly engaged with the hook part 1a corresponds to the inner side surface of the hook. The base end side is pivotally supported via a pivot bearing 9b attached to the fixed frame 1A and a pivot 9c fitted to the pivot bearing 9b. Based on the control of a control mechanism (not shown), an operation of a swing mechanism 10 described later is obtained, and the single plate 11 is pressed prior to the heat and pressure treatment of the single plate 11 by swinging as indicated by the arrow in a timely manner. The locking of the fixed frame 1A and the movable frame 1B with respect to the direction is made possible, and the locking is made unnecessary after the end of the hot press process.

  Reference numeral 10 denotes an oscillating mechanism having an operating member 10a composed of a fluid cylinder and the like, a connector 10b, a support bearing 10c, and the like. Rock.

  Reference numeral 14 denotes a pair of left and right guide rails having appropriate lengths. From the front of the main body portion of the horizontal multistage press described above, through the fixed frame 1A and the movable frame 1B in an open state, the horizontal multistage It is fixedly arranged until the rear part of the main body of the press, and guides the movement of a single plate carry-in mechanism 13 and a single plate carry-out mechanism 15 described later.

  Next, a single plate carrying-in mechanism of the horizontal multistage press according to the present invention illustrated in FIGS. 5 and 6 will be described. In FIGS. 5 and 6, reference numeral 12 denotes a pair of left and right shafts 12 a, a chain wheel 12 b, an endless machine. A single-plate transport mechanism having a chain 12c, a plurality of bowl-shaped receiving plates 12d, a plurality of pairs of single-plate support plates 12e, 12f, etc., disposed in front of the main body portion of the horizontal multi-stage press described above Based on the control of a control mechanism (not shown), by operating a drive source (not shown) at appropriate times, the receiving plate 12d and the single plate support plates 12e and 12f are positioned as indicated by solid lines and as indicated by dotted lines. In the position indicated by the dotted line, as shown by the arrows in the figure, a plurality of single plates 11 filled one after the other between the single plate support plates 12e and 12f, Transfer to the position indicated by the solid line and carry in single plate as described later It waits for extraction of veneer 11 by structure 13. All the single plates 11 are filled so that the fiber directions are aligned in the vertical direction at the position of the solid line.

  13 is a bowl-shaped moving frame 13a having four column portions, an elevating guide 13b attached to the inner side of each column portion of the moving frame 13a, and an elevating / lowering disposed so as to be movable up and down along the elevating guide 13b. Lifting member 13d composed of a frame 13c, a fluid cylinder or the like for moving the lifting frame 13c up and down, and carrying-in gripping members 13e and 13h fixed to the slide shafts 13f and 13j so as to form a plurality of pairs with different lengths for each left and right From a fluid cylinder or the like that reciprocally moves the plurality of pairs of carrying-in gripping members 13e and 13h to the position indicated by the solid line and the position indicated by the dotted line via the slide shafts 13f and 13j as indicated by the arrows in the figure. A single-plate carrying-in mechanism having slide members 13g, 13k, etc., and an operating mechanism having an appropriate configuration based on the control of a control mechanism (not shown), such as a shaft, bearing, chain wheel By operating an operating mechanism (not shown) having an end-like chain, a fastener, a connector, a drive source, etc., along the above-mentioned guide rail 14, from the front to the top of the main body portion of the horizontal multi-stage press A plurality of single plates 11 conveyed to the position indicated by the solid line by the single plate conveying mechanism 12 at the front position of the main body portion of the horizontal multi-stage press. Is pulled out by gripping with the carrying-in gripping members 13e and 13h, raised to the position indicated by the dotted line, and then transferred to the upper part of the main body portion of the horizontal multi-stage press, and then the preheating plate 4A A plurality of single plates 11 are supplied within the interval between the hot plates 4A and 4B by releasing the grip after being lowered into the interval 4B. Although not shown in the figure, the longer carrying gripping member 13h is provided with a through hole that allows the slide shaft 13f to pass therethrough.

  Next, the single plate carry-out mechanism of the horizontal multi-stage press according to the present invention illustrated in FIGS. 7 and 8 will be described. In FIGS. 7 and 8, reference numeral 15 denotes a bowl-shaped movement having four column portions. From a frame 15a, an elevating guide 15b attached to the inside of each column portion of the moving frame 15a, an elevating frame 15c disposed so as to be movable up and down along the elevating guide 15b, a fluid cylinder for elevating the elevating frame 15c, etc. As shown by the arrows in the drawing, the lifting member 15d is composed of a carry-out gripping member 15e and 15h and slide shafts 15f and 15j fixed to the slide shafts 15f and 15j so as to form a plurality of pairs with different lengths on the left and right sides. As described above, slide members 15g and 15k made of fluid cylinders or the like for reciprocally moving the plurality of pairs of carrying gripping members 15e and 15h back and forth between a position indicated by a solid line and a position indicated by a dotted line, Single plate carry-out having a thin plate-like guide plate 15m or the like in which the respective tip portions attached to the lower end portions of the holding members 15e and 15h elastically contact the heating surfaces of the heating plates 4A and 4B in the open state Actuating mechanism having an appropriate configuration based on the control of a control mechanism (not shown), such as a shaft, a bearing, a chain wheel, an endless chain, a locking device, a connector, a driving source, etc. By operating a mechanism (not shown), it is configured to move back and forth alternately between positions from the upper part to the rear part of the main body portion of the horizontal multi-stage press along the guide rail 14. The single plate 11 that has been subjected to the heat and pressure treatment in the main body portion of the press is gripped and pulled out by the unloading gripping members 15e and 15h, raised to the position indicated by the dotted line, and then the main body portion of the horizontal multistage press After moving to To release the grip from is lowered to predicate to veneer transporting mechanism 16 of the veneer supporting plate 16e · 16e within the interval, carries out the heat and pressure treated veneer 11. Although not shown in the figure, the longer carrying gripping member 15h is provided with a through hole that allows the slide shaft 15f to pass therethrough.

  Reference numeral 16 denotes a single plate transfer mechanism having a pair of left and right shafts 16a, a chain wheel 16b, an endless chain 16c, a plurality of bowl-shaped receiving plates 16d, a plurality of pairs of single plate support plates 16e, etc. It is arranged at the rear of the main body portion of the horizontal multi-stage press, and by operating a drive source (not shown) at appropriate times based on the control of a control mechanism (not shown), the receiving plate 16d and the single plate support plate 16e are It is configured to move alternately between the position indicated by the solid line and the position indicated by the dotted line, and at the position indicated by the solid line, the single plate carry-out mechanism 15 carries out the transfer between the opposed single plate support plates 16e and 16e. The plurality of single plates 11 are successively transferred to a position indicated by a dotted line, and can be extracted outside the machine as indicated by an arrow in the figure.

  Next, the operation state of the entire horizontal multi-stage press configured as described above will be described using the explanatory views illustrated in FIGS. 9 to 13 as well. First, the single plate carrying mechanism 13 is a single plate carrying mechanism. 12, the single plate carry-out mechanism 15 stands by (see FIGS. 6 and 8) above the single plate transfer mechanism 16, and the carry-in grip members 13 e and 13 h and the carry-out grip member 15e and 15h are controlled to stand by in the state of being separated from each other at the uppermost standby position. Further, the heating plates 4A and 4B of the main body portion of the horizontal multi-stage press are in an open state (FIGS. 1, 2, and 4) until at least the single plate carry-in mechanism 13 is moved above the main body portion of the horizontal multi-stage press. Control).

  Thus, when the plurality of single plates 11 are transferred to the position indicated by the solid line in FIG. 5 through the single plate conveyance mechanism 12, the elevating member 13d of the single plate carry-in mechanism 13 is operated. The carry-in grip members 13e and 13h are controlled to be lowered to the position shown by the solid line in FIG. 5 via the elevating frame 13c, and then the slide members 13g and 13k are operated to face each other. By moving 13e and 13h close to each other, the plurality of single plates 11 are gripped at the same time, and then the lifting member 13d is operated, whereby the loading gripping members 13e and 13h are moved via the lifting frame 13c. Control is performed so as to rise to the position indicated by the dotted line in FIG.

  Next, by operating the operating mechanism (not shown) for the single plate carry-in mechanism, the single plate carry-in mechanism 13 is moved above the main body portion of the horizontal multistage press, and then the lifting member 13d is operated. The plurality of single plates 11 are lowered to the position indicated by the solid line in FIG. 9 (or a position slightly higher than that) through the lifting frame 13c and the loading gripping members 13e and 13h, By stopping the operation of the slide members 13g and 13k, releasing the holding of the single plate 11 by the opposing loading holding members 13e and 13h all at once, and further operating the elevating member 13d, the elevating frame 13c is interposed. Then, by controlling the carry-in grip members 13e and 13h to be raised above the main body portion of the horizontal multi-stage press, a plurality of single plates 11 are supplied within the interval between the heating plates 4A and 4B. .

  Thereafter, the moving mechanism 8 is operated to move the movable frame 1B toward the right side (fixed frame side), and when the movable frame 1B is moved to the most right end, the moving mechanism 10 is moved. By swinging the hooked arm 9, the hooked part 9a of the hooked arm 9 is inserted into the hooked part 1a of the movable frame 1B, and is further added via the hydraulic cylinder 3a. By controlling the platen 3 to move toward the left side (movable frame side), the plurality of single plates 11 supplied within the interval between the respective hot plates 4A and 4B are hot-pressed simultaneously (FIGS. 10 and 11). reference).

  The single plate carry-in mechanism 13 that has finished supplying the single plate group is moved back above the single plate carrying mechanism 12 by operating an operating mechanism (not shown) for the single plate carry-in mechanism, and further slides. The members 13g and 13k are actuated to separate the opposing carrying-in gripping members 13e and 13h from each other, thereby returning to the initial state and controlling to prepare for the supply of the next single plate group. On the other hand, the single plate carry-out mechanism 15 is moved horizontally by operating an operating mechanism (not shown) for the single plate carry-out mechanism in place of the single plate carry-in mechanism 13 returning to the upper side of the single plate carry mechanism 12. It moves to the upper part of the main body part of a multistage press, and it controls so that it may prepare for carrying out of the single plate group which carried out the hot-pressure process.

  Thus, after the required hot pressure time has elapsed, the pressure plate 3 is moved toward the right side (fixed frame side) via the hydraulic cylinder 3a, and the single plate 11 is simultaneously heated. And the rocking arm 9 is swung via the rocking mechanism 10 to remove the hooking portion 9a of the hooking arm 9 from the hooking portion 1a of the movable frame 1B. By operating the moving mechanism 8 and moving the movable frame 1B toward the original position, the heating plates 4A and 4B are controlled to be in an open state (see FIGS. 1, 2, and 4). .

  Thereafter, the lifting member 15d of the single plate unloading mechanism 15 is operated to control the unloading gripping members 15e and 15h to be lowered through the lifting frame 15c as shown by a solid line in FIG. Then, the slide members 15g and 15k are operated to bring the opposing unloading gripping members 15e and 15h closer to each other, thereby gripping the plurality of single plates 11 at the same time, and then operating the lifting member 15d. Thus, the carry-out grip members 15e and 15h are controlled to be raised to the positions indicated by the dotted lines in FIG.

  If necessary, when lowering the gripping members 15e and 15h, the operation of the slide members 15g and 15k is temporarily stopped or the operation force is controlled to be temporarily reduced, so that Although it is preferable that the guide plate 15m attached to the lower ends of the gripping members 15e and 15h is not excessively pressed against the heating surface of the heating plates 4A and 4B, in any case, the unloading gripping members 15e and 15h As shown in FIG. 13 (a), the guide plate 15m attached to the lower end portions of the carry-out grip members 15e and 15h is elastically pressed against the heating surfaces of the hot plates 4A and 4B. Therefore, even if the single plate 11 is adhered to the heating surface of the hot platen 4B (or the hot platen 4A) due to the adhesive action of resin or the like, as shown in FIG.・ 15h As the lowering is performed, at least the upper part of the single plate 11 is released so as to be peeled off, so that each single plate 11 can be gripped without any problem, and if the other parts are relatively lightly bonded. In this case, the veneer 11 can be easily taken out against adhesion. If necessary, as illustrated in FIG. 14, instead of the carrying-out gripping members 15e and 15h, guide plates 15m provided at the lower ends of the heating plates 4B (or the heating plates 4A) are heated. If at least most of the veneer 11 bonded to the surface is provided with a carrying-out gripping member 15n / 15p having a length sufficient to be released from the bonding, the working length of the elevating member 15d is extended by a required amount. Even if any single plate 11 is firmly bonded, at least most of the bonding can be released by lowering the guide plate 15m, so that the single plate 11 can be easily taken out.

  Thus, after lifting the gripping members 15e and 15h to the position indicated by the dotted line in FIG. 12, the single plate unloading mechanism is operated to operate the single plate unloading mechanism. By moving the mechanism 15 to the rear of the horizontal multi-stage press and then operating the elevating member 15d, the carrying gripping members 15e and 15h are moved through the elevating frame 15c to the positions indicated by solid lines in FIG. Or a slightly higher position than that), and the slide members 15g and 15k are operated to separate the opposing carry-out gripping members 15e and 15h from each other. The plate 11 is unloaded between the single plate support plates 16e and 16e of the single plate transfer mechanism 16, and the lifting member 15d is operated to move the gripping members 15e and 15h for unloading via the lifting frame 15c. It controls to increase until first standby position.

  Furthermore, in parallel with taking out the single plate group by the single plate unloading mechanism, the next single plate group by the single plate unloading mechanism is gripped according to the above procedure, and the horizontal multi-stage of the single plate unloading mechanism is used. The single plate carry-in mechanism is moved upward in the horizontal multi-stage press almost in synchronization with the rearward movement of the press. Subsequently, the same operation is repeated until a plurality of single plates are heat-pressed one after another. However, according to the method for processing a single plate using the horizontal multi-stage press according to the present invention, as described above, the upper part of the hot platen group is open and the front of the hot platen group is formed. Then, a plurality of single plates that have been aligned in the vertical direction with the fiber direction aligned, are gripped separately using an appropriate number of pairs of loading gripping members, and transferred to above the hot platen group, Lower in the direction parallel to the fiber direction and feed into each hot platen space, then feed into each other's space After each hot plate that has been heated and pressed for the required time is separated, each processed single plate is gripped separately using an appropriate number of pairs of unloading grip members, In addition to being raised in the direction parallel to the fiber direction to the upper side of the heating plate, it is transferred from the upper side of the heating plate group to the rear of the heating plate group. Even when the veneer is thin, there is no possibility that any part of each veneer will buckle during the process, and the occurrence of the problem that the process is delayed or disabled is eliminated.

  Further, when carrying out the method for processing a single plate according to the present invention, as in the embodiment illustrated in FIGS. 1 to 8, the upper portion of the heating plate group in the main body portion of the horizontal multi-stage press is open, In the front of the heating plate group, an appropriate number of pairs of holding members for loading that can hold a plurality of single plates that are arranged in parallel and waiting in parallel with the fiber direction aligned vertically. Can be moved in the front-rear direction from the front of the hot platen group to the upper side of the hot platen group, and at least most of each single plate gripped from the upper side of the hot platen group within the interval of each hot platen. It is possible to move up and down in the vertical direction up to a height that can be lowered, and further, each of the front end portions over the entire length of the supply area of the single plate on the heating surface of each hot plate facing each other at a predetermined interval Is provided with a thin plate-like guide plate that abuts elastically and intervenes in the space between the heated plates in the separated state. An appropriate pair of unloading gripping members capable of gripping each single veneer separately from the top of the hot platen so that at least the upper end of each processed single plate can be gripped By using a horizontal multi-stage press that can be moved up and down in the vertical direction and movable in the front-rear direction from the top of the heating plate group to the rear of the heating plate group, the adhesive action of resin, etc. Even if the single plate may adhere to the heating surface of the hot platen, at least the adhesion of the upper portion of the single plate is released as the carry-out grip member (substantially the guide plate) descends. Each veneer can be gripped without hindrance, and if the other part is relatively lightly bonded, it is effective because the veneer can be easily taken out against the bonding.

  Further, as in the embodiment illustrated in FIG. 14, the guide plate provided at each lower end portion is provided with a gripping member for carrying out to a height sufficient to release at least most of the veneer single plate bonded to the heating plate from bonding. If a horizontal multi-stage press configured to be lowered is used, even if the adhesion is strong, at least most of the adhesion can be released by lowering the guide plate, so that the single plate can be taken out more stably. Can be more effective.

  However, the horizontal multi-stage press that can be used for carrying out the method for processing a single plate according to the present invention is not limited to the embodiment described above. For example, a horizontal multi-stage press having a form as described later may be used in the present invention. It can be used to implement such a single plate processing method.

  That is, the embodiment illustrated in FIG. 15 is provided at the lower end of each single plate 11 that has been subjected to the heat and pressure treatment and is located within the space between the respective heating plates 4A and 4B that are separated from each other in the main body portion of the horizontal multi-stage press. An appropriate number of push-up members 17a that are in contact with most of the rest, excluding a portion where the support member 7 is in contact, a connecting rod 17b that integrally connects the appropriate number of push-up members 17a, and a connecting rod 17b And a lifting member (not shown) such as a fluid cylinder that lifts and lowers the appropriate number of lifting members 17a all at once within the interval between the heating plates 4A and 4B. In addition, a single plate push-up mechanism 17 that pushes up each single plate 11 by a desired amount when the hot plates 4A and 4B are opened after the hot press treatment is provided below the main body portion of the horizontal multi-stage press. 7, 8 or 14 Instead of the single-plate unloading mechanism 15 in the example, a bowl-shaped moving frame 18a having four column parts, an elevating guide 18b attached to the inner side of each column part of the moving frame 18a, and the elevating guide 18b An elevating frame 18c disposed so as to be capable of elevating along, an elevating member 18d composed of a fluid cylinder or the like for elevating the elevating frame 18c, and slide shafts 18f and 18j so as to form a plurality of pairs with different lengths for each left and right. As shown by the arrows in the drawing, the plurality of pairs of carrying-out gripping members 18e and 18h are secured to the positions indicated by solid lines and the positions indicated by dotted lines through the fixed carrying-out gripping members 18e and 18h and slide shafts 18f and 18j. This is a horizontal multi-stage press comprising a single-plate unloading mechanism 18 having slide members 18g, 18k, etc. composed of fluid cylinders that are alternately reciprocated.

  In addition, when the single plate push-up mechanism is provided below the main body portion of the horizontal multi-stage press, for example, as a means for ensuring the space for arranging the single plate push-up mechanism including the lifting member, the height of the base is increased. Aspect, or a mode in which a hole having a required capacity is formed in the base portion of the base, a mode in which a projecting portion is provided in the front-rear direction of the connecting rod, and an elevating member is provided in the opposite direction (upward) to the projecting portion, etc. In short, it suffices if the single-plate push-up mechanism can be accommodated without hindrance.

  Even using a horizontal multi-stage press configured as described above, it is possible to carry out the processing method of a single plate according to the present invention, the fiber direction of a plurality of single plates 11 is directed in the vertical direction, After transferring from the front of the main body part of the horizontal multi-stage press to the upper part of the main body part, it is lowered into the interval between the hot plates 4A and 4B, and then each single plate 11 subjected to the heat and pressure treatment for the required time is attached to the main body. When taking out above the portion, each single plate 11 is pushed up by a desired amount separately through the push-up member 17a of the single plate push-up mechanism 17, and the push-up direction is the same as that of each single plate 11. Since the direction is the same as the fiber direction, even if the single plate 11 is adhered to the heating surface of the hot platen 4A or 4B by the adhesive action of resin or the like, the known technical means disclosed in the aforementioned publications Compared to the Te, it is possible to achieve the release of the adhesive.

  Incidentally, as shown in the illustrated example, according to the configuration including a push-up member that can be raised to a height that causes the upper end portion of each processed single plate to protrude upward from the upper end of each heat platen. As is clear from the figure, it is sufficient to provide a carrying-out gripping member that can grip the upper end of each single plate protruding above the upper end of each heating plate, and it is unnecessary to attach a guide plate to the lower end. However, if necessary, the carrying-out gripping member having the same form as the carrying-out gripping member of the single plate carrying-out mechanism in the embodiment illustrated in FIGS. To the height at which the lower end of each processed veneer can be pushed upward by a desired dimension above the lower end of each heating plate (which can be lower than in the case of the above example) In this configuration, a push-up member that can be lifted is provided. If such a configuration is adopted, the adhesion near the lower end of each single plate is caused by the pushing-up action by the push-up member, and the adhesion near the upper end of each single plate is caused by the peeling action by the guide plate, respectively. Since it can be released, it is still possible to take out a stable single plate.

  In any of the above embodiments, the form of each mechanism and each member is not limited to the illustrated form, and the same function as each mechanism and each member in each embodiment is provided. As long as it can be performed, there is no problem, and various design changes can be made as necessary. Hereinafter, some examples of design changes will be described.

  As shown in the above example, if one of the pair of left and right frames in the main body portion of the horizontal multi-stage press is movable, the operating length of the expensive hydraulic cylinder essential for heat pressure can be shortened. As a whole, it is effective in reducing the press manufacturing cost, but the pair of left and right frames in the main body portion of the horizontal multi-stage press according to the present invention is not shown, but is disclosed in the aforementioned publications. Both left and right fixed frames can be used. When such a configuration is adopted, it is needless to say that the installation of a frame moving mechanism, a hooked arm, a swinging mechanism, and the like is unnecessary.

  Further, in the illustrated example, the heating surface of each hot platen in the main body portion of the horizontal multi-stage press is displayed in a smooth shape, but if necessary, in the horizontal direction (the fiber direction of the single plate to be hot pressed) By drilling multiple strips of thin steam discharge grooves extending in the (perpendicular direction) parallel to the heating surface of each hot platen, smooth discharge of steam generated from a single plate due to heat pressure is achieved. In the case of adopting such a configuration, the position where the steam discharge groove is formed between the opposed heating surfaces may be either symmetric or asymmetric.

  Further, as illustrated in the illustrated example, it is preferable to sharpen the lower end shape of the guide plate in the shape of a knife, since the entry to the boundary between the heating surface of each hot platen and the single plate is optimized. When the thickness is relatively thin (for example, about 0.5 mm), there is no particular problem in entering the boundary without sharpening as such, and the bottom end shape that does not hinder the entry into the boundary is essential. If necessary, the lower end of the guide plate may be a non-linear shape such as a wave shape or a saw blade shape.

  Further, in the illustrated example, the carrying member for carrying in the single plate carrying mechanism is provided with a gap between each other, like a stepping stone, and arranged to be intermittently arranged. Similarly to the carrying member for carrying out the single plate carrying-out mechanism in the illustrated example, it is also possible to have a mode in which it is arranged so as to be generally continuous in the horizontal direction (direction perpendicular to the fiber direction of the single plate to be hot-pressed), According to such an embodiment, a single plate in which the bond strength in the direction perpendicular to the fiber direction is unstable or extremely unstable (for example, a single plate in which cracks extending in the fiber direction exist in two or more strips at a relatively narrow interval. Or, for example, a labyrinth veneer that has been peeled off with an adhesive tape or the like).

  Further, as shown in the above-described example, each of the carry-in grip member of the single plate carry-in mechanism, the carry-out grip member of the single plate carry-out mechanism, and the guide plate is formed into a plurality of pairs of single shapes (four pairs in the illustrated example). If divided and provided, it is practical because the processing and assembly of each member becomes relatively easy, but the form of each member is not necessarily limited to such a divided shape. However, for example, as a non-divided integral form, there is no problem even if it is provided with only one pair, or for example, a carrying grip member for a single plate carrying mechanism and a carrying grip member for a single plate carrying mechanism are formed in a single shape. A plurality of pairs may be provided, and only the guide plate may be formed in a non-divided integral form.

  Further, the operation member used for the operation of the carrying-in gripping member and the carrying-out gripping member is not limited to the slide member as shown in the illustrated embodiment, and although not shown, for example, the carrying-in gripping member and the carrying-out gripping member are omitted. In any pair of members, a desired pair of members is pivotally supported symmetrically via a support shaft disposed at an appropriate position, and an appropriate number of cams interposed on the upper end side are used (necessary) (Depending on the elastic member such as a tension spring and a compression spring, depending on the), it is also possible to alternately hold and release the single plate by simultaneously opening and closing the lower end side. In short, any structure that can alternately hold and release a single plate at a suitable time is sufficient.

  As is apparent from the above, the present invention has a beneficial effect on the hot-pressure treatment of a veneer having a remarkable anisotropy. If necessary, the heat of a plate material such as a plywood or a decorative board can be obtained. Naturally, it can be diverted to pressure treatment, and it is relatively inferior in strength in the direction parallel to the plate surface (same direction), and thin plate (for example, 2.5 mm or less plywood). Produces beneficial actions and effects corresponding to the treatment.

DESCRIPTION OF SYMBOLS 1A: Fixed frame 1B: Movable frame 2: Base 3 also used as a frame guide: Pressure plate 4A: Single-sided heating type hot platen 4B: Double-sided heating type hot platen 5: Hot plate guides 6, 6a also used as a pressure plate guide Spacing regulating member 7: Support member 8: Frame moving mechanism 9: Arm with hook 10: Oscillating mechanism 11: Single plate 12: Single plate conveying mechanism 13: Single plate carrying mechanism 14: A pair of left and right guide rails 15 and 18: Single Plate unloading mechanism 16: Single plate transfer mechanism 17: Single plate push-up mechanism

Claims (6)

  Multiple veneer veneers are heated all at once using a horizontal multi-stage press that has a multi-stage heating plate that can be opened and closed at equal intervals between the left and right frames. When pressing, connecting members such as beds, cross beams and connecting arms that connect the left and right frames, guide members such as guide tracks and guide wheels that guide the movement of each heating plate in the left-right direction, and open intervals for each heating plate By providing accessory members such as an interval restricting member for restricting the veneer veneer at a regular interval, and a restricting member for restricting the lower end position of each veneer single plate at the front, rear and lower sides of the hot plate group. The upper veneer is open, and at the front of the heating plate group, multiple veneer veneers that have been placed in parallel with the fiber direction aligned vertically can be displaced in the front-rear direction and the up-down direction. Use the appropriate number of pairs of loading gripping members with appropriate shapes to grip each And moving at least most of each veneer veneer within the interval between the heating plates, releasing the gripping, and raising the loading gripping member outside the interval between the heating plates. After each hot platen that has been hot pressed for the required time for each veneer veneer supplied within the interval is separated, an appropriate number of pairs of unloading grips with appropriate shapes that can be displaced in the front-rear and up-down directions After lowering the member to a height at which at least the upper end of each processed veneer veneer can be gripped, each of the processed veneer veneers is separately gripped and raised above the heating plate group, A veneer veneer using a horizontal multi-stage press characterized by intermittently processing a plurality of veneer veneers by alternately repeating the operation of transferring to an appropriate position behind the heating platen and releasing the gripping Processing method.   A bed that connects the left and right frames in a horizontal multi-stage press in which a plurality of heating plates that can be opened and closed at equal intervals between the left and right frames. Connecting members such as horizontal beams and connecting arms, guide members such as guide tracks and guide wheels for guiding the movement of each heating plate in the left-right direction, interval regulating members for regulating the opening interval of each heating plate at equal intervals, each veneer By providing attachment members such as a restricting member for restricting the lower end position of the veneer limited to the front, rear and lower sides of the hot platen group, the upper part of the hot platen group is made open, and the hot platen group In the front position, an appropriate number of pairs of carrying gripping members having an appropriate shape capable of gripping a plurality of veneer veneers that are arranged side by side with the fiber direction aligned in the vertical direction, It is movable in the front-rear direction from the front of the hot platen group to the upper side of the hot platen group, and from above the hot platen group. At least most of the gripped veneer veneers are vertically movable up to a height that can be lowered within the interval between the heating plates, and are further provided on the heating surface of each heating plate facing each other at a predetermined interval. A thin plate-like guide plate whose tip is elastically abutted at least over the entire length of the veneer veneer supply region is provided at the lower end and intervenes in the space between the heated plates in the separated state. From the upper side of the heating plate group, at least the upper end portion of each processed veneer veneer has an appropriate number of pairs of carrying gripping members that can hold each processed veneer veneer separately. A horizontal multi-stage press characterized by being vertically movable up to a grippable height and movable in the front-rear direction from above the heating plate group to the rear position of the heating plate group.   3. The horizontal multi-stage according to claim 2, wherein the guide plate provided at the lower end portion is configured to lower the gripping member for carrying out at least most of the veneer single plate bonded to the heating plate to a height sufficient to release from the bonding. press.   A bed that connects the left and right frames in a horizontal multi-stage press in which a plurality of heating plates that can be opened and closed at equal intervals between the left and right frames. Connecting members such as horizontal beams and connecting arms, guide members such as guide tracks and guide wheels for guiding the movement of each heating plate in the left-right direction, interval regulating members for regulating the opening interval of each heating plate at equal intervals, each veneer By providing attachment members such as a restricting member for restricting the lower end position of the veneer limited to the front, rear and lower sides of the hot platen group, the upper part of the hot platen group is made open, and the hot platen group In the front position, an appropriate number of pairs of carrying gripping members having an appropriate shape capable of gripping a plurality of veneer veneers that are arranged side by side with the fiber direction aligned in the vertical direction, It is movable in the front-rear direction from the front of the hot platen group to the upper side of the hot platen group, and from above the hot platen group. At least most of the gripped veneer veneer is vertically movable up to a height that can be lowered within the interval between the heating plates, and further intervenes and processes within the interval between the heated plates in the separated state. At the lower end of each finished veneer veneer, the appropriate number of push-up members that raise the veneer veneer by a desired amount separately by contacting the majority of the rest, excluding the portion where the regulating member abuts, Prepare an appropriate number of pairs of gripping members for unloading from above the hot platen group so that they can be moved up and down below the hot platen group and can hold each processed veneer veneer separately. The veneer veneer that has already been installed can be moved up and down in the vertical direction to a height that can be gripped, and can be moved in the front-rear direction from the top of the heating plate group to the rear of the heating plate group. Features a horizontal multi-stage press.   A push-up member capable of ascending to the height at which the upper end of each treated veneer veneer protrudes upward from the upper end of each heating plate is provided, and the upper end of each heating plate protrudes upward. The horizontal multi-stage press according to claim 4, further comprising an appropriate number of unloading gripping members capable of gripping an upper end portion of each veneer single plate.   A thin plate-like guide plate whose tip is elastically contacted at least over the entire length of the supply area of the veneer single plate on the heating surface of each hot plate facing each other at a predetermined interval is provided at the lower end. And an appropriate number of pairs of carrying gripping members capable of intervening in the interval between the heated plates in the separated state and gripping at least the upper end of each processed veneer veneer separately. 4. The horizontal multistage press according to 4.

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