Embodiments provide a veneer dryer system and methods of constructing, relocating, and replacing veneer dryers and other constructs such as lumber kilns, machinery, and processing lines or parts thereof. Embodiments of a veneer dryer system may include a track and a veneer dryer movably coupled with the track. The track may extend between the desired location of the veneer dryer and a construction location. Movers may be coupled with the track at the construction location. The veneer dryer may be partially or fully constructed on the movers and moved to the desired location for use. A pre-existing veneer dryer at the desired location may remain operational during the construction and removed before the new veneer dryer is moved into place, substantially reducing downtime and costs as compared to prior methods of replacing veneer dryers.

Disclosed is a substrate support structure, a vacuum drying apparatus and a method for vacuum drying a substrate. The substrate support structure comprises: a support pin having a top end for supporting a substrate; and an auxiliary support assembly including: a drive device; a support rod driven by the drive device; and a support disc disposed at a top end of the support rod and made of flexible material adapted to support the substrate, wherein the drive device is configured to drive the support rod to move in a direction parallel to an axial direction of the support pin so as to make the support disc positioned below or above the top end of the support pin as the support rod moves, so that the substrate is selectively supported by the support disc or the support pin. The substrate support structure, the vacuum drying apparatus and the method for vacuum drying a substrate can prevent the substrate from being easily scratched and avoid poor quality and uneven brightness of the substrate.

A vacuum drying system includes: a support platform, which is used to support the substrate, wherein the support platform comprises a plurality of sub-platforms which are arranged along a predetermined direction and there are gaps between the adjacent sub-platforms; a mechanical arm which comprises a plurality of strip structures at positions corresponding to the gaps, and is used to place the substrate onto the support platform or move the substrate out of the support platform. Comparing to the prior art wherein the substrate is supported by a plurality of needle-shaped supports in the vacuum drying process, in the technical solution of the present disclosure, the contact area between the support platform and the substrate is much larger, which can reduce the local pressure on the substrate, thereby avoiding the display brightness mura of the substrate caused by the supporting operation in the vacuum drying process.

A layered-up veneer board is formed by layering veneers up to a predetermined height such that the fiber directions of the respective veneers are alternately perpendicular to one another, and the layered-up veneer board is compressed by a compression device, to remove moisture contained in the veneers. Wood is a material in which the tensile strength in the fiber direction of the wood is higher than the tensile strength in the direction perpendicular to the fiber direction. With this layering scheme, even when stress is applied to the veneers and causes elongational deformation of these veneers as a result of compressing the layered-up veneer boards in the layering direction, elongational deformation of the veneers in the directions perpendicular to the fiber directions thereof can be reduced.

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.

A vertical oven for drying and temporarily storing painted panels includes racks for supporting the panels; an uploading/downloading system into/from the vertical oven; and a stacker crane having two multiple forks each including a plurality of single forks, a first multiple fork withdrawing the panels from a first side of the oven and a second multiple fork withdrawing the panels from the opposed side of the oven, the panels being positioned on the racks side by side or alone based on width. A control unit controls panel uploading/downloading and/or the stacker crane through a control software. Each single fork has an independent actuator and is separately controlled by the control unit. The software configures the control unit to determine the number of single forks to be actuated according to the length of the panel to be withdrawn, and the length of the stroke of the forks based on panel width.

A drying device is configured with a sensor corresponding to an air knife-nozzle, and a control switch which suspends an operation of the device when the air knife-nozzle is detected as working abnormally, thereby preventing abnormal products from being produced due to the failure of finding an abnormal condition of the air knife-nozzle in time, ensuring the normal process of the product, and avoiding the nonessential economic loss.

A method and system for picking up painted panels of different dimensions and finishes includes inserting the painted panels into a selective sorting system having two superimposed mobile conveyor sectors of a predefined length and with a driving motor for the alternate advancement in one of two directions. The two mobile conveyor sectors move vertically synchronously and are arranged alternately and in series with a fixed conveyor sector. After uploading in the selective sorting system, the painted panels are kept inside the selective sorting system for a time sufficient for drying, and are withdrawn through an upload and download system, which includes software memorizing the position of the uploaded panels, actuating the lifting and/or lowering motors of the mobile conveyor sectors, and advancing the mobile conveyor sectors and the fixed conveyor sector so as to move the panels due for a customer order, temporarily storing undesired panels in a buffer.

A method and system for picking up painted panels of different dimensions and finishes includes inserting the painted panels into a selective sorting system having two superimposed mobile conveyor sectors of a predefined length and with a driving motor for the alternate advancement in one of two directions. The two mobile conveyor sectors move vertically synchronously and are arranged alternately and in series with a fixed conveyor sector. After uploading in the selective sorting system, the painted panels are kept inside the selective sorting system for a time sufficient for drying, and are withdrawn through an upload and download system, which includes software memorizing the position of the uploaded panels, actuating the lifting and/or lowering motors of the mobile conveyor sectors, and advancing the mobile conveyor sectors and the fixed conveyor sector so as to move the panels due for a customer order, temporarily storing undesired panels in a buffer.

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.