Abstract: A veneer sheet feed device for multistage veneer sheet dryer is provided between an auto feeder including a carry-in conveyor and a roll dryer (veneer sheet dryer). The veneer sheet feed device is provided with a guide member and a feed conveyor for feeding a veneer sheet carried in from the carry-in conveyor to each conveyance unit of the roll dryer in this order from a conveyance up stream side. The veneer sheet feed device further provided with a pivot mechanism that allows a starting end of the guide member belonging to the conveyance stage immediately above the conveyance stage in which the veneer sheet is carried this time from the carry-in conveyor to pivot to a portion above a horizontal position of a roller shaft located at a terminal end of this guide member.

Abstract: A horizontal multistage press apparatus 1 (multistage drying apparatus) includes conveyance paths R1 to R4 (first to fourth conveyance paths) in which the veneer sheet W1 (sheet material to be treated) is carried out in a standing state. The conveyance path R1 is positioned over between the loader device 10 and the hot press device 20, the conveyance path R2 is positioned over between the hot press device 20 and the open transpiration device 40, the conveyance path R3 is positioned over between the open transpiration device 40 and the temperature control press device 50, and the conveyance path R4 is positioned over between the temperature control press device 50 and the unloader device 60. The conveyance paths R1 to R4 are arranged in a straight line in plan view.

Abstract: A parallel veneer standby step, a cross veneer moving step, a cross veneer positioning step, a cross veneer standby step, a parallel veneer returning step, a parallel veneer positioning step, a superimposing step, and a superimposed veneer gluing step are included. Accordingly, a superimposed veneer is obtained in which the parallel veneer and the cross veneer are bonded with a high degree of adhesion and corresponding edges of the parallel veneer and the cross veneer substantially align with each other.

Abstract: A movable conveyor 42 of a post-gluing conveyor 33 (sliding extendable roller conveyor) is provided, in a front portion, with a non-driving roller 42d (guiding roller) disposed so as to be inclined toward a reference surface (ruler) 42e at a predetermined angle with respect to a width direction such that a leading end of a veneer is guided toward the reference surface (ruler) 42e (one lateral side) of a movable conveyor 42. When the veneer is detected by a veneer detecting sensor 45 (veneer detecting means), a post-gluing conveyor controller 47 (slide movement control means) retracts the movable conveyor 42 in an extended state, in a contracting direction in a state in which forward rotational driving of a driving roller 42a of the movable conveyor 42 is maintained.

Abstract: A large number of green veneers for plywood respectively having high water contents and formed in a rectangular shape are vertically laminated to obtain a veneer laminate having a quadrangular prismatic shape. The veneer laminate is located between upper and lower platen members so that two opposite side faces of the veneer laminate vertically form cut face gathering planes. The upper and lower platen members are moved toward each other to apply a pressing force to the veneer laminate. The pressing force applied to the veneer laminate is released or weakened while the water drawn through the cut face gathering planes by the pressing force is dripping downward along the cut face gathering planes of the veneer laminate vertically formed.

Abstract: A large number of green veneers for plywood respectively having high water contents and formed in a rectangular shape are vertically laminated to obtain a veneer laminate having a quadrangular prismatic shape. The veneer laminate is located between upper and lower platen members so that two opposite side faces of the veneer laminate vertically form cut face gathering planes. The upper and lower platen members are moved toward each other to apply a pressing force to the veneer laminate. The pressing force applied to the veneer laminate is released or weakened while the water drawn through the cut face gathering planes by the pressing force is dripping downward along the cut face gathering planes of the veneer laminate vertically formed.

Abstract: A large number of green veneers for plywood respectively having high water contents and formed in a rectangular shape are vertically laminated to obtain a veneer laminate having a quadrangular prismatic shape. The veneer laminate is located between upper and lower platen members so that two opposite side faces of the veneer laminate vertically form cut face gathering planes. The upper and lower platen members are moved toward each other to apply a pressing force to the veneer laminate. The pressing force applied to the veneer laminate is released or weakened while the water drawn through the cut face gathering planes by the pressing force is dripping downward along the cut face gathering planes of the veneer laminate vertically formed.

Abstract: A large number of green veneers for plywood respectively having high water contents and formed in a rectangular shape are vertically laminated to obtain a veneer laminate having a quadrangular prismatic shape. The veneer laminate is located between upper and lower platen members so that two opposite side faces of the veneer laminate vertically form cut face gathering planes. The upper and lower platen members are moved toward each other to apply a pressing force to the veneer laminate. The pressing force applied to the veneer laminate is released or weakened while the water drawn through the cut face gathering planes by the pressing force is dripping downward along the cut face gathering planes of the veneer laminate vertically formed.

Abstract: Two press cylinders are disposed at an equal interval at left and right having the opening-closing cylinder therebetween, so as to have the approximately same distance from the conveying reference plane as the opening-closing cylinder. The opening-closing cylinder comprises an opening-closing linear encoder, which detects a decreased amount of the entire thickness of the object-to-be-processed as a displacement of the ram, when the object-to-be-processed is hot-pressed. The respective press cylinders comprise pressure sensors for press cylinders detecting pressing pressures of the pressing plates as cylinder inner pressures.

Abstract: A horizontal hotpress system is provided, which can maintain the thickness of the boards (laminated boards) after hot-pressing within the allowable range, by driving and controlling the press cylinders individually, even when, for example, the size or material of the boards changes. Also, A horizontal hotpress system is provided, which can maintain the thickness of the boards (laminated boards) after hot-pressing within the allowable range, by driving and controlling the press cylinders individually or jointly without adjusting the pressing positions of the press cylinders, even when, for example, the size or material of the boards changes, and further, being able to adapt to change of the material of the boards or the like.

Abstract: A rotatable roll is provided under a planing cylinder rotating at a fixed position. A front feed unit and a rear feed unit having an upper and a lower roll for gripping the plate are provided upstream and downstream of the planing cylinder with respect to the feed direction of the plate. A front movable body and a rear movable body having an upper and a lower roll for gripping the plate member are provided between the planing cylinder and the front feed unit and between the planing cylinder and the rear feed unit. The upper and lower rolls of the front and rear movable bodies are forcibly moved up and down. The plate member is supported at three points and deflected downward to prevent floating of the plate during cutting and to prevent the formation of depressions in the plate near its front and rear ends during cutting.

Abstract: This invention discloses a horizontal multistage press which comprises a pair of frames disposed upright in face-to-face relationship with each other, at least one upper lateral beam disposed to connect the upper portions of the abovementioned pair of frames, at least one lower lateral beam disposed to connect the lower portions of the pair of frames, rails disposed on at least either of such pair of upper and lower lateral beams and extending along the length thereof, a multiplicity of hot plates disposed parallel to one another between the pair of frames and supported by the rails for reciprocal movement along the length of such rails, a multiplicity of unprocessed sheets being heat-pressed between the hot plates, at least one urging means disposed on at least one of the frames for urging the multiplicity of hot plates toward and away from one another, and travel members for loading and unloading the unprocessed and processed sheets in and from the gaps between the hot plates, such travel members including

Abstract: A horizontal multiplaten press used for pressing sheet materials under heat for making plywood, decorative laminate or veneer. It has a pair of vertically disposed and horizontally spaced apart frames. At least one upper beam and at least one lower beam extend horizontally to connect the frames at their upper and lower ends, respectively. Rails are provided on each beam and extend along its length. Heating platens are vertically disposed between the frames in parallel to one another and are horizontally movably supported on the rails. The platens define therebetween a plurality of spaces in which the sheet materials to be heated and pressed can be vertically disposed. At least one urging device is provided on at least one of the frames for moving the platens to and away from one another. A mechanism is provided on the rails on at least one of the beams for allowing the deformation of each platen in a vertical direction.