US20190275780A1 - Automated door assembly and methods, press used therewith, and adhesive therefor - Google Patents
Automated door assembly and methods, press used therewith, and adhesive therefor Download PDFInfo
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- US20190275780A1 US20190275780A1 US16/357,604 US201916357604A US2019275780A1 US 20190275780 A1 US20190275780 A1 US 20190275780A1 US 201916357604 A US201916357604 A US 201916357604A US 2019275780 A1 US2019275780 A1 US 2019275780A1
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- Prior art keywords
- door
- assembled
- station
- pressing
- press
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
- B27D3/02—Veneer presses; Press plates; Plywood presses with a plurality of press plates, i.e. multi- platen hot presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/18—Manufacture or reconditioning of specific semi-finished or finished articles of furniture or of doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B7/00—Presses characterised by a particular arrangement of the pressing members
- B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other
- B30B7/023—Feeding or discharging means
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/72—Door leaves consisting of frame and panels, e.g. of raised panel type
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/7015—Door leaves characterised by the filling between two external panels
- E06B3/7017—Door leaves characterised by the filling between two external panels of grating type
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/82—Flush doors, i.e. with completely flat surface
- E06B3/822—Flush doors, i.e. with completely flat surface with an internal foursided frame
Definitions
- the present invention is directed to systems and methods, particularly automated systems and methods, for manufacturing doors having first and second door facings and internal door frames, multi-door pressing stations for use therewith, and adhesives and doors processed and manufactured in the course of using the systems and practicing the methods.
- a door facing is placed on a production table with its intended exterior surface face down.
- Adhesive is applied, typically via a roll coater, to the opposite sides of the stiles and rails.
- the core and/or lock block(s), if any, are likewise coated.
- the adhesively coated frame parts are then placed by hand on the door facing on the table.
- the rails are placed at the top and bottom of the door facing, and the stiles are placed on opposite sides of the door facing.
- a second door facing is placed with its interior surface on the second side of the frame.
- Another door facing is then placed with its exterior surface face down on the previously assembled door and the process repeated until a stack of doors has been assembled.
- the assembled doors should be handled carefully, given that the components of the door are in a loose “layup” state and can easily shift during transportation.
- Final processing includes edge trimming the doors to customer specification and optional coating and/or painting of door skins and exposed edges of the stiles and rails around each door perimeter. Using this process, manufacturing time for a door may be twenty-four hours or more, from the time production is initiated to the resulting finished door is complete and ready for delivery to a customer or user.
- a door pressing system for pressing doors, such as interior passage doors, exterior entry doors, bi-fold doors, and/or closet doors.
- the system includes a multi-door pressing station featuring a first press including a first set of platens, and a second press including a second set of platens, each set of platens respectively having at least one platen movable relative to the other platen of the set of platens between an open state and a closed state.
- the system further includes a loading material handling and movement device configured to deliver assembled doors in a layup state to the multi-door pressing station, and a discharging material handling and movement device configured to receive assembled doors that have been pressed by the multi-door pressing station.
- the multi-door pressing station is configured to alternatingly move the first and second presses between a loading/unloading position and a pressing position.
- one (e.g., the first) of the first and second presses In the loading/unloading position, one (e.g., the first) of the first and second presses is in the open state and operative alignment with the loading and discharging material handling and movement devices to receive at least a first of the assembled doors in the layup state delivered by the loading material handling and movement device and to discharge at least a second of the assembled doors that has been pressed to the discharging material handling and movement device.
- the other (e.g., the second) of the first and second presses In the pressing position, the other (e.g., the second) of the first and second presses is in the closed state for pressing a third of the assembled doors and is out of operative alignment with the loading and discharging material handling and movement devices.
- the multi-door pressing station is movable vertically between the loading/unloading position and the
- a system for making any of passage doors, interior passage doors, exterior entry doors, bi-fold doors and/or closet doors includes at least one framing station, at least one adhesive coating station, at least one assembly station, and at least one pressing station.
- the framing station is configured to receive framing components such as rails and stiles, and optionally lock blocks and/or cores, from delivery component lines, especially automated delivery component lines, to assemble door frames.
- the assembled door frames are sent to an adhesive coating station which applies adhesive to the door frames.
- the assembly station optionally orients the door skins and joins first and second door skins to opposite surfaces of the frames to form assembled doors.
- a system for making door frames for at least one of interior passage doors, exterior entry doors, passage doors, closet doors, and/or bi-fold doors.
- the system includes a framing station including a jig system for supporting and holding the rails and stiles in the arrangement of a door frame.
- One or more lock blocks may be secured to the door frame components, typically a stile, prior to the attachment process at the jig station.
- Adhesive is applied and/or mechanical fasteners are employed to join the rails, stiles, and another other frame components so as to allow the frame to be self-supporting.
- Still another embodiment of the present invention features an assembled door or pre-assembled door, which may include one or more of the following features: a door frame with abutting ends and edges of the stiles and rails adhesively attached to one another; an expandable or expanded core adhesively and/or mechanically attached to rails; lock blocks adhered and/or fastened to a stile prior to the stile being laid-up as a door frame or door assembly, and other structures described herein.
- FIGS. 1A, 1B, and 1C are partial schematic views collectively illustrating an exemplary automated door production line, wherein FIG. 1C illustrates finishing components downstream of the pressing station;
- FIG. 2 is a schematic view of a frame assembly station of the door production line according to the present invention.
- FIG. 2F is an enlarged partial view of the frame assembly station of FIG. 2 , depicting the frame assembly jig assembling a frame while an already assembled frame is transported by conveyor from the jig toward the adhesive coating station;
- FIGS. 6A-6E are partial views respectively depicting the vertically movable two-press pressing station at various stages of operation
- a single top rail 110 a may be selected from the top rail conveyor and a single bottom rail 110 b is selected from the bottom rail conveyor.
- a door having more than one top rail 110 a such as a double top rail (not shown), more than one bottom rail 110 b , such as a double bottom rail (not shown), or both a double bottom rail and double top rail, and/or one or more intermediate rails (not shown) may be desired. Therefore, the rail indexing device 112 is capable of variably selecting a single rail 110 a , 110 b or multiple rails from the top rail conveyors, the bottom rail conveyors, and optionally intermediate rail conveyors (not shown).
- the core 140 dangles or bows downwardly due to its weight because it is held in place only by way of its adhesion to the rails 110 that are suspended by the rail grippers 162 , 164 .
- the core 140 is expanded cardboard or like paper-like material and thus has little structural strength when so suspended.
- each frame 150 , 150 ′ is assembled, either through the assembly system and process described above or preassembly, the frame 150 , 150 ′ is moved to an adhesive coating station 210 , 210 ′ and adhesive coating and layup station 200 .
- the adhesive coating station 210 is capable of applying an adhesive to both sides of the frame 150 .
- Adhesive application may be accomplished by passing the frame 150 through a double roll coater of the frame adhesive station 210 .
- the roll coater applies adhesive to the frame 150 in an amount between about 6 and about 25 g/sft (grams per square foot) as measured on the surface of the stiles 120 and the rails 110 .
- the rail 110 will be pushed until it is flush against the alignment plate 215 to square the door frame 150 .
- the gripping rollers 214 b , 214 c are adapted to rotate during the alignment process.
- the alignment plate 215 may be moved horizontally into and out of the bottom skin layup areas 205 to contact the door frame 150 and then move out of the layup area 205 during placement of the door frame 150 onto the bottom door skin 220 .
- the second production line (designated with primes ′) operates in the same manner.
- Door skins 220 , 230 may be unloaded from the pallets P and placed onto the conveyors 305 , 315 either manually or through a robotic handling device such as a vacuum gantry. If the door skins 220 , 230 are removed from the pallets P manually, the operators O 2 , O 3 moving the door skins 220 , 230 may also perform a visual quality inspection. If a door skin 220 , 230 is found to be unsatisfactory, the operator may place it on a disposal conveyor (not shown). If the door skin 220 , 230 is found to be acceptable, the operator(s) O 2 , O 3 places it on a production conveyor.
- a robotic handling device such as a vacuum gantry
Abstract
A door pressing system for pressing interior passage doors, exterior entry doors, bi-fold doors, and/or closet doors features a multi-door pressing station including first and second presses, a loading device, and a discharging device. The pressing station is configured to alternatively move the first and second presses into operative alignment with the loading and discharging devices. The press in operative alignment delivers a pressed assembled door to the discharging device and receives an assembled door layup to be pressed from the loading device. The other press that is out of operatively alignment presses an assembled door received therein. Additional methods and systems are also provided.
Description
- This application claims the benefit of priority to U.S. provisional application No. 61/793,524, filed Mar. 15, 2013, the complete disclosure of which is incorporated herein by reference.
- The present invention is directed to systems and methods, particularly automated systems and methods, for manufacturing doors having first and second door facings and internal door frames, multi-door pressing stations for use therewith, and adhesives and doors processed and manufactured in the course of using the systems and practicing the methods.
- A door such as a hollow core door typically includes two molded or flush door skins (sometimes called “door facings”) attached to opposite sides of an interior door frame, which is typically made of wood but sometimes metal or composites. The door facings are often molded from a composite of wood fiber and resin compound, although fiberglass-reinforced polymeric door facings and steel door facings are also known. The door frame typically includes stiles and rails positioned around the perimeter of the door that together form the frame. The interior of the door may optionally include a core.
- Manual assembly of doors is relatively labor intensive, expensive, and subject to quality variations. During manual assembly, a door facing is placed on a production table with its intended exterior surface face down. Adhesive is applied, typically via a roll coater, to the opposite sides of the stiles and rails. The core and/or lock block(s), if any, are likewise coated. The adhesively coated frame parts (stiles and rails) are then placed by hand on the door facing on the table. Typically, the rails are placed at the top and bottom of the door facing, and the stiles are placed on opposite sides of the door facing. With the adhesive applied to a second upward-facing side of the stiles and rails, a second door facing is placed with its interior surface on the second side of the frame. Another door facing is then placed with its exterior surface face down on the previously assembled door and the process repeated until a stack of doors has been assembled. In this manual assembly process, the assembled doors should be handled carefully, given that the components of the door are in a loose “layup” state and can easily shift during transportation.
- In the above-described manner, each successive door assembly is stacked on top of the previous door assembly until a predetermined quantity of door assemblies has been stacked. The stack of door assemblies is then transported to and loaded in a press. The press applies pressure to the entire stack for a period of time sufficient to allow the adhesive to bond the door facings to their respective frames. Conventional adhesives, such as polyvinyl acetate, may take approximately thirty minutes or more to cure or harden in the press before the door reaches “green” strength. The door achieves “green” strength when the adhesive has reached sufficient bonding strength to hold the door components together for further handling.
- Once green strength is achieved, the doors may be removed from the press and moved to an in-process inventory until the adhesive reaches adequate cure strength. Depending upon the adhesive used and ambient conditions, the doors may need to remain in inventory for a relatively long period of time, for example two hours or more, or even as long as twenty-four hours, before the adhesive reaches adequate bonding strength for final processing.
- After reaching adequate cure strength the doors are then moved to a final processing station. Final processing includes edge trimming the doors to customer specification and optional coating and/or painting of door skins and exposed edges of the stiles and rails around each door perimeter. Using this process, manufacturing time for a door may be twenty-four hours or more, from the time production is initiated to the resulting finished door is complete and ready for delivery to a customer or user.
- According to an embodiment of the invention described in greater detail below, a door pressing system is provided for pressing doors, such as interior passage doors, exterior entry doors, bi-fold doors, and/or closet doors. In accordance with this embodiment, the system includes a multi-door pressing station featuring a first press including a first set of platens, and a second press including a second set of platens, each set of platens respectively having at least one platen movable relative to the other platen of the set of platens between an open state and a closed state. The system further includes a loading material handling and movement device configured to deliver assembled doors in a layup state to the multi-door pressing station, and a discharging material handling and movement device configured to receive assembled doors that have been pressed by the multi-door pressing station. The multi-door pressing station is configured to alternatingly move the first and second presses between a loading/unloading position and a pressing position. In the loading/unloading position, one (e.g., the first) of the first and second presses is in the open state and operative alignment with the loading and discharging material handling and movement devices to receive at least a first of the assembled doors in the layup state delivered by the loading material handling and movement device and to discharge at least a second of the assembled doors that has been pressed to the discharging material handling and movement device. In the pressing position, the other (e.g., the second) of the first and second presses is in the closed state for pressing a third of the assembled doors and is out of operative alignment with the loading and discharging material handling and movement devices. In one variation of this embodiment, the multi-door pressing station is movable vertically between the loading/unloading position and the pressing position. In another variation of this embodiment, the first and second presses move alternatingly between the loading/unloading position and the pressing position.
- In accordance with another embodiment, a system for making any of passage doors, interior passage doors, exterior entry doors, bi-fold doors and/or closet doors includes at least one framing station, at least one adhesive coating station, at least one assembly station, and at least one pressing station. The framing station is configured to receive framing components such as rails and stiles, and optionally lock blocks and/or cores, from delivery component lines, especially automated delivery component lines, to assemble door frames. The assembled door frames are sent to an adhesive coating station which applies adhesive to the door frames. The assembly station optionally orients the door skins and joins first and second door skins to opposite surfaces of the frames to form assembled doors. The pressing station includes a first press and a second press for alternatingly pressing the assembled doors and receiving/discharging the assembled doors prior to/after pressing. After the assembled doors are discharged from the pressing station, the pressed assembled doors may be received by a non-linear accumulator.
- In accordance with a further embodiment, a system is provided for making door frames for at least one of interior passage doors, exterior entry doors, passage doors, closet doors, and/or bi-fold doors. The system includes a core attachment station for connecting an expandable core to a top rail and a bottom rail, and a robotic system, including a pair of grippers, for respectively gripping top and bottom rails. The grippers draw the top and bottom rails apart to expand the attached expandable core, and the robotic system delivers the spaced apart top and bottom rails and the expanded core to a framing station where the top and bottom rails are attached to a pair of stiles to form a door frame. The framing station may include a jig system for supporting and holding the rails and stiles at the four corners of the door frame where the rails and stiles abut during the attachment process. The stiles and rails may be attached via quick-setting adhesive, a mechanical fastener or a combination thereof to allow the frame to be self-supporting.
- In accordance with a further embodiment, a system is provided for making door frames for at least one of interior passage doors, exterior entry doors, passage doors, closet doors, and/or bi-fold doors. The system includes a framing station including a jig system for supporting and holding the rails and stiles in the arrangement of a door frame. One or more lock blocks may be secured to the door frame components, typically a stile, prior to the attachment process at the jig station. Adhesive is applied and/or mechanical fasteners are employed to join the rails, stiles, and another other frame components so as to allow the frame to be self-supporting. In accordance with this embodiment, a lock block selected from a set of lock blocks may be adhered to a respective stile prior to being delivered to the framing station. Likewise, an expandable core selected from a set of expandable cores may have its opposite ends adhered to respective pairs of rails prior to being delivered to the framing station.
- In accordance with a variation of the above and other embodiments, the jig system includes four clamping members, one at each of the four corners where the rails and stiles abut.
- According to another variation of the above and other embodiments, each of the clamping members further includes at least one adhesive nozzle for applying adhesive to associated edges of the stiles and/or rails where the rails and stiles abut.
- In accordance with a further embodiment, a door pressing system for making doors, in particular at least one of interior passage doors, exterior entry doors, bi-fold doors, and/or closet doors is provided. The system includes a multi-door pressing station, which in turn includes at least a first press and a second press, each having a pair/set of movable platens, for receiving assembled doors. The pressing station is adapted so that one of the presses performs a pressing operation on at least one assembled door layup while the other press receives and/or discharges a pressed second assembled door. A loading system is provided for successively delivering door layups to the pressing station, and a discharging system is downstream of the pressing station for carrying off pressed assembled doors. The pressing station is operable to selectively and alternatingly move the first and second presses between a first (loading/unloading) position wherein one of the presses is oriented to receive at least a first assembled door layup from the loading system and discharge at least a pressed second assembled door to the discharge system, and a second (pressing) position in which the other of the presses is oriented to press at least a third assembled door.
- In accordance with a variation of the above and other embodiments disclosed herein, presses of the multi-door pressing station are movable in tandem with one another between the first and second positions. Movement may be accomplished using suitable hydraulic equipment, for example. The movement may be vertical movement between upper and lower positions with correspond to the first and second pressing positions, or vice versa.
- In accordance with a further embodiment, a door assembly system is provided for pressing and curing a plurality of assembled doors including door skins adhered to a frame assembly. The door assembly station features a multi-door pressing station including at least first and second presses, each press having a pair of movable platens, for moving the platens between and open state for receiving door assemblies and a closed state for pressing door assemblies. The pressing station applies pressure to each assembled door in the first press to perform a pressing operation on the assembled door(s) in the first press while receiving and/or discharging one or more assembled doors into/from the second press. A non-linear accumulator is downstream of the pressing station for holding at least first and second pressed assembled doors during an adhesive curing process.
- In accordance with a further embodiment, the multi-door pressing station delivers pressed assembled doors to an accumulator in the form of a star conveyor that rotates a plurality of pressed assembled doors through a circular path. The accumulator holds the pressed assembled doors during a curing process.
- In accordance with still a further embodiment, a system is provided for making door frames for at least one of interior passage doors, exterior entry doors, passage doors, bi-fold doors, and/or closet doors. The system includes a core attachment station for attaching an expandable core to a top rail and a bottom rail with a first adhesive. A lock block attachment station connects at least one lock block to a stile with a second adhesive, which may be the same as or different than the first adhesive. A robotic system delivers the top and bottom rails and the adhesively attached core to a framing station where the top and bottom rails are adhesively attached to a pair of stiles to form a door frame.
- Still another embodiment disclosed herein features a method of assembling a door, which features: successively delivering assembled doors in a layup state via a loading material handling and movement device to a multi-door pressing station including first and second presses; discharging at least a first of the assembled doors having been pressed from the first press of the multi-door pressing station to a discharging material handling and movement device, and loading at least a second of the assembled doors in the layup state into the first press of the multi-door pressing station while the first press is in operative alignment with the loading and discharging material handling and movement devices, and simultaneously pressing at least a third of the assembled doors in the second press of the multi-door pressing station; moving the second press into operative alignment with the loading and discharging material handling and movement devices; and discharging the at least third of the assembled doors having been pressed from the second press and loading at least a fourth of the assembled doors in the layup state into the second press while the second press is in operative alignment with the loading and discharging material handling and movement devices, and simultaneously pressing the at least second of the assembled doors in the first press. The embodiment may further include applying adhesive to door frame components and frame the door frame components and applied adhesive into door frames; and securing first and second door skins on opposite surfaces of the door frames to provide the assembled doors in the layup state.
- Still another embodiment of the present invention features an assembled door or pre-assembled door, which may include one or more of the following features: a door frame with abutting ends and edges of the stiles and rails adhesively attached to one another; an expandable or expanded core adhesively and/or mechanically attached to rails; lock blocks adhered and/or fastened to a stile prior to the stile being laid-up as a door frame or door assembly, and other structures described herein.
- Other embodiments, including apparatus, systems, stations, methods, doors, door skins, and the like which constitute part of the invention, will become more apparent upon reading the following detailed description of the exemplary embodiments and viewing the drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and therefore not restrictive.
- The accompanying drawings are incorporated in and constitute a part of the specification. The drawings, together with the general description given above and the detailed description of the exemplary embodiments and methods given below, serve to explain the principles of the invention. In such drawings:
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FIGS. 1A, 1B, and 1C are partial schematic views collectively illustrating an exemplary automated door production line, whereinFIG. 1C illustrates finishing components downstream of the pressing station; -
FIG. 2 is a schematic view of a frame assembly station of the door production line according to the present invention. -
FIG. 2A is an enlarged partial view of the frame assembly station ofFIG. 2 , depicting the rails and core after being assembled at the core attachment station where the core is adhered to a pair of rails; -
FIG. 2B is an enlarged partial view of the frame assembly station ofFIG. 2 , depicting the rail grippers moving apart the rails to thereby expand the attached core as the distance between the rails is made to match a length of an associated stile; -
FIG. 2C is an enlarged partial view of the frame assembly station ofFIG. 2 , depicting the rail grippers delivering the rails and core to a frame assembly jig; -
FIG. 2D is an enlarged partial view of the frame assembly station ofFIG. 2 , depicting a stile, which includes an associated lock block affixed thereto, being delivered by arms to the frame assembly section; -
FIG. 2E is an enlarged partial view of the frame assembly station ofFIG. 2 , depicting the frame assembly jig from an angle different than the angle shown inFIGS. 2C and 2D wherein an assembled frame is shown with another rail/core assembly being suspended above the already assembled frame; -
FIG. 2F is an enlarged partial view of the frame assembly station ofFIG. 2 , depicting the frame assembly jig assembling a frame while an already assembled frame is transported by conveyor from the jig toward the adhesive coating station; -
FIG. 3 is a schematic of the frame assembly jig according to the present invention with an assembled frame being suspended by four clamps while rail grippers expand a rail/core assembly above the frame conveyor; -
FIGS. 4A-4C are partial views depicting the frame handling arms which retrieve the door frame from the adhesion station and place the door frame onto the bottom door skin at the bottom skin layup station; -
FIG. 4D is a schematic showing the frame handling arm used in conjunction with an alignment mechanism for squaring the door frame during the layup process; -
FIGS. 5A-5C are partial views depicting a top skin layup station and a pick-and-place mechanism that utilizes suction cups to lift and place a top skin onto an assembled frame at a top skin layup station; -
FIGS. 6A-6E are partial views respectively depicting the vertically movable two-press pressing station at various stages of operation; -
FIGS. 6F and 6G are schematic illustrations depicting the two presses in their respective loading positions; -
FIG. 7 depicts a pair of non-linear accumulators in the form of star conveyors; and -
FIG. 8 depicts an exemplary motor-driven star conveyor. - Reference will now be made in detail to exemplary embodiments and methods as illustrated in the accompanying drawings, in which like reference characters designate like or corresponding parts throughout the drawings. It should be noted, however, that the invention in its broader aspects is not limited to the specific details, representative devices and methods, and illustrative examples shown and described in connection with the exemplary embodiments and methods.
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FIGS. 1A-1C collectively depict an automated door production line according to an embodiment of the present invention. - In an exemplary embodiment, the door production line is a synchronous system designed to operate at a specific rate of door build, for example one door produced per unit of time. In order to avoid bottlenecks and maximize throughput, each step in the process, including transportation, occurs at a preset rate intended to assure that the door build rate is achieved and optionally optimized. Therefore, it is important to provide suitable press time and proper adhesives and adhesive application to sufficiently bond the components of the door together. Improper bonding can lead to quality issues, or failure of the frame which would thus necessitate suspension of line operation.
- The production line may be divided for purposes of discussion into five (5) different sections or stages of the production process. First, referring to
FIGS. 1A and 2 , at least oneframe assembly station 100 is provided wherebyrails 110,stiles 120, lock blocks 130 andcores 140 are delivered to acentral framing jig 101. At thecentral framing jig 101, the frame components are assembled into adoor frame 150. InFIG. 1A , a secondframe assembly station 100′ is also shown. Thereafter, as best shown inFIG. 1B , at least one adhesive coating andlayup station 200 receives assembledframes 150 and the assembledframes 150 are coated with adhesive atcoater 210, after which door skins 220, 230 are applied to the assembleddoor frame 150. The door skins 220, 230 are delivered from a doorskin delivery station 300. As further shown inFIG. 1B , the assembled doors or door layups are then passed to apressing station 400 and thereafter to anaccumulator station 500. The assembled and pressed doors are thereafter passed to asingle conveyor 600 where the doors are delivered to finishing stations where the assemble doors may be trimmed, painted, inspected, and stacked. - With reference to
FIGS. 1A and 2 , theframe assembly station 100 receivesrails 110,stiles 120, lock blocks 130, andcores 140, which are delivered to thecentral framing jig 101 by material handling devices, which preferably are moving conveyors, such as conveyors having continuous moving belts for delivery of the frame components. Therails 110,stiles 120, lock blocks 130, andcores 140 preferably are delivered in sets of predetermined numbers and arranged in a form that facilitates maintenance of the door build rate. Various material handling and movement devices and methods may be used to transport components of each door assembly, and are simply designated by the arrows in the individual stations and between stations. Material handling and movement devices may include, for example, conveyors, gantries, manipulators, grippers, automated guided vehicles, pick and place systems and automated storage/retrieval systems. The components and stations of the production line may be operated by an operator's control, automatically by utilizing various sensors including optical, magnetic, and radio sensors, or any combination of manual and automatic operation. Though specific examples of material handling and movement are provided in the exemplary description of certain stations, these may be modified as would be understood by one of ordinary skill in the art upon viewing this disclosure. -
Core attachment station 142, best shown inFIG. 2 , includes an automated rail delivery system wherebyrails 110 are introduced by an automated rail picking and placing device, such as a mechanical arm, which removes therails 110 from the delivery device, such asfork truck 10. The automated rail picking and placing device places a predetermined number ofrails 110 onto a moving conveyor belt that delivers therails 110 to arail indexing device 112 that selects a pair ofrails FIG. 2 , a singletop rail 110 a may be selected from the top rail conveyor and asingle bottom rail 110 b is selected from the bottom rail conveyor. In various exemplary embodiments, a door having more than onetop rail 110 a, such as a double top rail (not shown), more than onebottom rail 110 b, such as a double bottom rail (not shown), or both a double bottom rail and double top rail, and/or one or more intermediate rails (not shown) may be desired. Therefore, therail indexing device 112 is capable of variably selecting asingle rail bottom rail top rails 110 a are attached, for example, by fasteners or an adhesive such as a hot melt adhesive to form a multi (e.g. double) top rail. Two or morebottom rails 110 b may be processed in similar manner to form a multi (e.g., double) bottom rail. - After being selected, the
rails core attachment station 142. At thecore attachment station 142, acore 140 is connected to thetop rail 110 a and to thebottom rail 110 b, for example, by a hot melt adhesive. Additionally or as an alternative, fasteners may be used to establish or strength the connection. Thecore 140 is preferably placed onto a material delivery mechanism by an operator O1 and then is brought to thecore attachment station 142 by a conveyor orindexing device 144. Thecore 140 may be an expandable core, such as made from expandable cardboard, honeycomb, or any suitable substance depending on the door that is to be assembled. In an exemplary embodiment, thecore 140 is an expandable corrugated cardboard core or honeycomb paper core. The production line is set up and operated so that thecore 140 is variable and optionallydifferent cores 140 may be selectively attached to the rails or omitted from the assembled frame. Optionally, the core may be formed in situ. - A thermoplastic hot melt adhesive attaches the core to the
rails - As best shown in
FIG. 2 , a stile assembly station includes an automated stile delivery system through whichstiles 120 are introduced by an automated stile picking and placing device, such as a mechanical arm, which removes thestiles 120 from the delivery device, which is illustrated as afork truck 20. The automatic stile picking and placing device places a predetermined number ofstiles 120 onto twoconveyor belts stiles 120 to respectivestile indexing devices Stile indexing devices stiles 120 to the left side of theframe assembly jig 101 and another set ofstiles 120 to the right side of theframe assembly jig 101. In the preferred embodiment, thestiles 120 delivered from theconveyor 122 are passed to thestile indexing device 126 for delivery to the right side of theframe assembly jig 101, and thestiles 120 delivered from theconveyor 124 pass below theframe assembly jig 101 to thestile indexing device 128 on the left side of theframe assembly jig 101. - The stile assembly station includes an automated lock block delivery system whereby lock blocks 130 are introduced by an automated lock block picking and placing device, such as a mechanical arm, which retrieves the lock blocks 130 from a carrier device, which is illustrated as another
fork lift 30 inFIG. 2 . The automated lock block picking and placing device selectively places lock blocks 130 for delivery to twoconveyor belts block indexing devices frame assembly jig 101 and one-by-one to the right side of theframe assembly jig 101. - Both the
stiles 120 and the lock blocks 130 are moved to lockblock attachment stations block attachment stations respective stile 120 in order to be affixed to the associatedstile 120. Eachstile 120 moves in the direction of the arrows depicted at thestile indexing devices stiles 120 via adhesive, for example a hot melt adhesive, but the lock blocks may be attached by a mechanical fastener, or a combination of adhesive and mechanical fastener. WhileFIG. 2 depicts asingle lock block 130 being attached to eachstile 120 on the right and left sides of theframe assembly jig 101 at the lockblock attachment stations single lock block 130 may be attached at one of the lockblock attachment stations stiles 120 at thestations frame assembly station 100 may be handled manually or automatically by robotic systems such as pick and place robotic arms, robotic indexers, and the like. In the illustrated embodiment, therails 110, thestiles 120, and the lock blocks 130 are handled automatically. - Each
lock block 130 is secured to its associatedstile 120 preferably through use of a thermoplastic hot melt adhesive, fastener, or combination thereof. The adhesive is preferably a viscous, fast setting adhesive that is applied to either thelock block 130 and/or thestile 120 at a point in the production line that allows thelock block 130 to be brought into engagement with thestile 120 before the adhesive has set. The bond strength is such that the lock block remains secured to thestile 120 during the frame assembly process. The assembled frame is thereafter transferred onto the associated door skin and thereafter the assembled door layup is transported to thepress 420, as described in greater detail below. - As discussed in more detail below, the central framing section includes a
frame assembly jig 101 for supporting and holding therails 110 andstiles 120 by raised arms until four clamps 180 a, 180 b, 180 c and 180 d grasp the frame at the corresponding four corners where therails 110 andstiles 120 abut during the attachment process to allow theframe 150 to be self-supporting. Thereafter, the assembledframe 150 is passed to a conveyor for delivery to the adhesive coating station while anotherdoor frame 150 is assembled on theframe assembly jig 101. -
FIGS. 2A-2F collectively illustrate a frame assembly process performed at theframe assembly jig 101.FIG. 2B illustrates therails core 140 after being assembled at thecore attachment station 142 where thecore 140 is adhesively adhered between and to a pair ofrails rail grippers rails frame assembly jig 101. As best shown inFIG. 2B , therail grippers rails core 140 as the distance between therails stile 120. -
FIG. 2C depicts therail grippers rails core 140 to theframe assembly jig 101. As best shown inFIG. 2D , an assembledframe 150 is shown on thelower conveyor 155.FIGS. 2C and 2D are additional views illustrating the assembledframe 150 on thelower conveyor 155 while therail grippers frame assembly jig 101.FIG. 2D also illustrates astile 120 a, which includes an associated lock block 130 a affixed thereto, being delivered byarms 101 a to frame assembly section. -
FIG. 2E depicts the frame assembly jig from a different angle than the angle shown inFIGS. 2C and 2D . InFIG. 2E , an assembledframe 150 a is shown with another rail/core assembly 143 suspended above the previously assembledframe 150 a. The assembledframe 150 a is held in place by fourclamps FIG. 2 ) positioned at the four corners offrame 150 a while therail grippers 162, 164 (FIG. 2C ) deliver the next rail/core assembly 143 to theframe assembly jig 101. Also shown inFIG. 2E is another pair ofstiles 120 with associated lock blocks 130 on opposite sides of the rail/core assembly 143. Theadditional stiles 120 are delivered byarms 101 a to theframe assembly jig 101 for adhesion to the rail/core assembly 143 while the fourclamps frame 150 a onto theconveyor 155. - In the preferred embodiment, there are three
arms 101 a on each side of theframe assembly jig 101 and eacharm 101 a is provided withconveyor belts 101 b that are driven bymotorized rollers 101 c mounted at the end of eacharm 101 a. Theconveyor belts 101 b convey thestiles 120 to theframe assembly jig 101. Once the four clamps 180 a-180 d grasp the assembledframe 150, thearms 101 a retract to permit the assembledframe 150 to interact with and be transported by theconveyor 155 disposed below thejig 101. - As best seen in
FIG. 2E , thecore 140 dangles or bows downwardly due to its weight because it is held in place only by way of its adhesion to therails 110 that are suspended by therail grippers core 140 is expanded cardboard or like paper-like material and thus has little structural strength when so suspended. -
FIG. 2F depicts theframe assembly jig 101 assembling a frame while the immediately previously assembledframe 150 is transported by theconveyor 155 from thejig 101 to the adhesive coating station described below. - As described above, the assembly of the attached
lock block 130 and thestile 120 and the assembly of the attachedrails core 140 are transferred to the frame assembly area and supported byframe assembly jig 101. Robotic handling devices such as a clamp and gantry system may be used to deliver the frame components to theframe assembly jig 101. After theexpandable core 140 is adhered to the rails, therails core 140. Therails stiles 120 are then secured together to form the assembledframe 150. Therails stiles 120 may be attached to one another using mechanical fasteners, adhesive, for example, a hot melt adhesive, or any combination of fasteners and adhesive. In various exemplary embodiments, different combinations of the lock blocks, the stiles, the rails, and the core may be delivered to the production line. It should be noted that theterm frame 150 used throughout the rest of this description includes the assembledstiles 120,rails 110, optional lock block(s) 130, and optional core(s) 140. -
FIG. 3 is a schematic of theframe assembly jig 101 according to the present invention with an assembledframe 150 suspended by fourclamps rail grippers frame conveyor 155. As best shown inFIG. 3 , thearms 101 a of theframe assembly jig 101 deliverstiles 120 from opposite sides of thejig 101. Thearms 101 a includeconveyor belts 101 b driven bymotorized rollers 101 c at the terminal ends of eacharm 101 a. Eacharm 101 a reciprocates in the direction of arrow ‘A’ in order to deliver astile 120 to the assembly area where it is clamped to therails clamps frame 150 from the clamps 180 a-180 d to theconveyor 155, theconveyor 155 moves in the vertical direction, designated by arrow ‘B’, toward the assembledframe 150 suspended above theconveyor 155 so that the assembledframe 150 comes to rest on theconveyor 155 when released by the clamps 180 a-180 d without unwanted force of being dropped from the clamps 180 a-180 d onto theconveyor 155. Alternatively, the assembledframe 150 may be moved vertically downward to come to rest on theconveyor 155. - In operation, the clamps 180 a-180 d release the assembled
frame 150 onto theconveyor 155 after a clamping period sufficient to permit the adhesive to cure sufficiently to maintain the connection between therails 110 and thestiles 120. The adhesive that secures therails 110 and thestiles 120 may be a thermoplastic hot melt that achieves a nearly instantaneous bond. The adhesive is relatively viscous in order to allow it to remain affixed to therails 110 and thestiles 120 without dripping. Unlike the adhesives securing the lock blocks 130 to thestiles 120 and thecore 140 to therails 110, the adhesive securing therails 110 to thestiles 120 is relatively flexible and tacky, allowing the resultingframe 150 to be squared up as elsewhere explained. The adhesive is applied to therails 110 by being extruded under pressure through nozzles. Then, the clamps are moved to a position adjacent the opposite ends of therails jig 101 in preparation for assembling the next door frame. - It is noted that each
clamp FIG. 3 is provided with an adhesive extrusion system, including a reservoir, associated tubing connected to an extrusion nozzle, and a pump for transporting the adhesive from the reservoir to the nozzle through the tubing, which includes one or more nozzles. When the clamps 180 a-180 d are positioned adjacent the opposite ends of therails rails rail 110 a shown inFIG. 3 and in the similar direction with respect to therail 110 b. The adhesive is thus applied to exposed ends of therails 110, which are joined to edges at the ends of thestiles 120. While it is preferred to use extruded adhesive for fastening the corners of thestiles 120 and therails 110 together, mechanical fasteners may alternatively be used either separately or in conjunction with adhesive, such as applied through use of nail guns, corrugated fasteners and the like. Yet alternatively, thestiles 120 and therails 110 may be connected through use of appropriately dimensioned and configured tongue and groove joints or other profiled joints sufficient to hold the resulting frame together for placement on a door skin, with the door skin having an appropriately located adhesive to secure the door frame to the door skins. - After the adhesive is applied to the ends of the
rails respective stiles 120 are delivered from thearms 101 a to the assembly area where thestiles 120 are positioned adjacent the ends of therails clamps jig 101 between the clamping position shown inFIG. 3 to an extrusion position adjacent therails - With reference to
FIGS. 1A and 1B , it is noted that theframe assembly jig 101 supplies assembledframes 150 to theconveyor 155 for further processing by the door production line. In the preferred embodiment, a secondframe assembly station 100′ is provided that has the same features and structures as theframe assembly station 100 described above. Like theframe assembly station 100, the secondframe assembly station 100′ uses automated technology to manufacture assembleddoor frames 150′ which are the same asdoor frames 150 and thesedoor frames 150′ are delivered downstream viaconveyor 155′ for further processing as described below. As best shown inFIG. 1A , the secondframe assembly station 100′ includes all of the same structure as the firstframe assembly station 100. Like parts are labeled with like reference numerals, except that the reference numerals of the second frame assembly station are indicated with a prime ′. - After each
frame frame adhesive coating station layup station 200. In the interest of brevity, only thefirst frame 150 and firstadhesive coating station 210 are discussed below. Theadhesive coating station 210 is capable of applying an adhesive to both sides of theframe 150. Adhesive application may be accomplished by passing theframe 150 through a double roll coater of the frameadhesive station 210. In an exemplary embodiment, the roll coater applies adhesive to theframe 150 in an amount between about 6 and about 25 g/sft (grams per square foot) as measured on the surface of thestiles 120 and therails 110. In various exemplary embodiments, the amount of adhesive is between about 15 and about 20 g/sft. This amount of adhesive is believed to assist quality issues, such as by preventing pillowing or peeling of the door skin from theframe 150. After the adhesive is applied, theframe 150 is transferred to door skin assembly stage of the adhesive coating andlayup station 200. The adhesive is preferably a reactive hot melt adhesive or a polyurethane reactive (PUR) hot melt adhesive. The adhesive has an open time of about 90 seconds, sufficient to allow the door to be assembled, transported to thepressing station 400 and thereafter pressed. The adhesive has an extended open time and high tack. Full cure of the adhesive typically takes 24 hours or more. If a PUR is used, the moisture needed for the reaction is available from the 6% to 8% moisture content of the door skins and the 6% to about 10% moisture content of the stiles/rails. - Referring to
FIG. 1B , it will be understood that theframe assembly stations frames conveyors adhesive coating station 210 will now be described and it will be understood by those of skill in the art that a similar frameadhesive coating station 210′ receivesdoor frames 150′ in the same manner as described below with respect to theframe 150. It should further be understood that third, fourth, fifth, and other production lines with corresponding stations may be provided. - The
frame 150 is delivered to the frameadhesive coating station 210 viaconveyor 155. As theframe 150 passes through the frameadhesive coating station 210, adhesive is applied to both opposite sides of theframe 150, while afirst door skin 220 is delivered from the doorskin delivery station 300 via conveyor 310 (SeeFIG. 1B ). Thedoor skin 220 is delivered automatically to a bottomskin layup area 205 and located by positioning members within a bottomskin layup area 205 downstream of frameadhesive coating station 210. At the bottomskin layup area 205, thedoor skin 220 is located downstream of the frameadhesive coating station 210 and theframe 150 exiting theadhesive coating station 210 is retrieved byrobotic handling device 212 described below. The robotic handling device 212 (seeFIG. 1B andFIGS. 4A-4C ) is configured to retrieve the assembledframe 150 after application of adhesive, and thereafter place the assembledframe 150 onto thedoor skin 220 which has been located in the bottomskin layup area 205. After the assembledframe 150 has been placed onto thedoor skin 220, the frame/skin assembly is conveyed to a topskin layup area 215. - As shown in
FIG. 1B andFIGS. 4A-4C robotic handling devices skin layup areas door frame adhesive coating station robotic handling device 212 includes three synchronized handlingarms frame 150 via gripping rollers as it exits the frameadhesive coating station 210 and locate theframe 150 onto the respectivebottom door skin 220. The three handling arms 213 a-213 c are synchronized such that two of the three arms 213 a-213 c (213 a and 213 c inFIG. 4A ) place an assembleddoor frame 150 onto abottom door skin 220 while the third handling arm (213 b inFIG. 4A ) begins to retrieve thenext door frame 150 from theadhesion station 210.FIG. 4C also shows analignment plate 215 for aligning with and squaring thedoor frame 150 prior to thedoor frame 150 being placed onto thebottom door skin 220, as will be described in more detail below. - With reference to
FIG. 4D , the handlingarms door frame 150. Eachhandling arm gripping rollers stile 120 of thedoor frame 150. Thegripping rollers arms stiles 120 to perform the gripping action. During operation, two of the handlingarms door frame 150 exiting theadhesive coating station 210 with thegripping rollers frame 150 toward the bottomskin layup areas 205. Prior to placing thedoor frame 150 onto thebottom skin 220, the handlingarms forward rail 110 against thealignment plate 215 in order to square-up thedoor frame 150 which may have shifted or become misaligned during transport along theconveyor 155 and through theadhesive coating station 210. More specifically, thedoor frame 150 is pushed against thealignment plate 215 and, if the door frame is not square (see dotted lines inFIG. 4D ), therail 110 will be pushed until it is flush against thealignment plate 215 to square thedoor frame 150. Thegripping rollers alignment plate 215 may be moved horizontally into and out of the bottomskin layup areas 205 to contact thedoor frame 150 and then move out of thelayup area 205 during placement of thedoor frame 150 onto thebottom door skin 220. The second production line (designated with primes ′) operates in the same manner. - With reference to
FIG. 1B , the doorskin delivery station 300 provides a system for deliveringdoor skins 220 to the door assembly stage of the adhesive coating andlayup station 200. More specifically, the doorskin delivery station 300 includes an operator O2 who places by hand a series of door skins 220 ontoconveyor 305 and a second operator O3 who places by hand a series of door skins 230 ontoconveyor 315. The door skins 220 are conveyed to a flipper, preferably in the form of astar conveyor 308, where the door skins 220 are flipped over so that their intended outer surfaces rest on the conveyor and thereby expose the intended inner surfaces of the door skins 220. Anexemplary star conveyor 308 is shown inFIG. 8 . The flippeddoor skins 220 are conveyed byconveyor 310 to thebottom layup area conveyor 315 toconveyor 320 without being flipped (so that their interior surfaces rest on the conveyor 320), and the door skins 230 are then conveyed by theconveyor 320 to the topskin layup area - As evident from
FIG. 1B , the doorskin assembly station 300 includes a first skin feeder and a second skin feeder. The skin feeders may include a door skin pallet or multiple pallets of the door skins 220 and 230. In the exemplary embodiment, thefirst skin conveyor 310 provides bottom door skins 220 and thesecond skin feeder 320 provides top door skins 230. The top and bottom door skins 220, 230 may be any variety of door skins including wood composite door skins, solid wood door skins, polymer door skins, sheet molding compound door skins, fiberglass-reinforced skins, molded door skins, steel door skins, and flush door skins. Although twoskin conveyors - Door skins 220, 230 may be unloaded from the pallets P and placed onto the
conveyors door skin door skin door skin door skin door skin door skin production conveyor door skin door skin - Turning now to the top skin layup station, the
top door skin 230 is moved to the top doorskin layup station skin layup station top door skin 230 is placed onto theframe bottom door skin 220 so that the interior surface of thetop door skin 230 faces downwardly towards theframe top door skin 230 is lifted fromconveyor 320 by a vacuum cup lifting structure, for example, as best shown inFIGS. 5A-5C . As best depicted inFIG. 5A , the top door skin is lifted from theconveyor 320 by an array of pneumatically-actuated vacuum cups 330 mounted to amovable support structure 340. As best shown inFIG. 5B , thedoor skin 230 is positioned above arespective door frame layup station FIG. 5C , thetop door skin 230 is then placed onto theframe door skin 230 and theframe layup stations - Referring now only to the first assembly line in the interest of brevity, after the
top door skin 230 is placed ontoframe 150, the assembled door layup is transferred to apressing station 400 where the door is pressed to more fixedly bond the door skins 220, 230 to theframe 150 having thecore 140. As discussed above, because the production line is automated, each step is performed at the set rate of movement to avoid bottlenecks. For example, the amount of time for the lock block attachment station(s) 139 a, 139 b to attach the lock blocks 130 to thestiles 120 is equal to rate of movement, the time for theframe 150 to be transferred to the adhesive coating andlayup station 200 equals the rate of movement, and the time in between completed doors coming off the production line is equal to the rate of movement. In various exemplary embodiments, the rate of movement of the presently described system is about 7 seconds to about 15 seconds, for example about every 8 seconds, though the time may vary depending on several factors such as the adhesive selected, as would be understood by one of ordinary skill in the art upon viewing this disclosure. The rate of movement may not be long enough, however, for sufficient bond strength to form between the door skins 220, 230 and theframe 150. - As best shown in
FIGS. 1B and 6A-6E , thedouble press 420 allows for a pressing time that at least achieves the required throughput ofpressing station station 400 is discussed below, with the understanding that pressingstation 400′ operates in a like manner. Although thepressing station 400 is depicted with adouble press 420, it should be understood that thepressing station 400 may include three, four, or more presses. Each of the presses has a pair of spaced, movable platens operated by a hydraulic system. Thedouble press 420 includes alower press 420 a and anupper press 420 b.FIG. 6A depicts an assembled door layup (withframe 150 and door skin 230) entering thefirst press 420 a aligned with theconveyor 155. The assembled door layup is passed to a conveyor located in thefirst press 420 a. In accordance with the preferred embodiment, the press thereafter is indexed down to align thesecond press 420 b with theconveyor 155. Thepress 420 reciprocates vertically in response to its supporting hydraulic actuators in order to move thepresses presses press conveyor 155, to receive at least a first assembled door layup delivered by the loading material handling and movement device and to discharge at least a second assembled door that has been pressed to the discharging material handling and movement device. The platens of thepress other press press conveyor 155. As shown in the drawings, in the “closed” state, the platens of thepress - The alternating cycle of the
press 420 assures that onepress other press FIG. 6C depicts thepressing station 400 wherein an assembled door layup is being received into the topsecond press 420 b as shown inFIG. 6B . InFIG. 6D , the second (top)press 420 b is being closed to press the assembled door layup and thepressing station 400 is thereafter indexed to align the (lower)first press 420 a with theconveyor 155 as shown inFIG. 6A . Using thedouble press 420, the pressing of assembled door layups is alternated between the lower andupper presses press skins frame 150. An assembled door layup can therefore undergo a pressing operation, which may include opening and closing the platens of the lower andupper presses frame 150 and thecore 140. - In various exemplary embodiments, the press imparts approximately 100 psi to the door skins 220, 230 adjacent the stile and rail sections. The principal bonding of the
skins stiles 120 and therails 110, the areas where the maximum pressure is applied. The pressure along the remaining areas of the door skins 220, 230 covering thecore 140 varies. - The
double press 420 is capable of rapid closure. For example, an upper platen and a lower platen in each of the lower andupper presses double press 420 are capable of transitioning from an open position to a closed state of contacting the door skins 220, 230 and reaching a final pressure in fewer than 10 seconds. In various exemplary embodiments, thedouble press 420 is capable of reaching final pressure in approximately one second or less. A fast closingdouble press 420 allows for a faster acting adhesive to be used and therefore quicker set and cure times. - In various exemplary embodiments, one of the upper and lower platens or both platens may be moved towards or away from the assembled door layup. As best shown in
FIGS. 6C and 6D , actuators, such as hydraulic or pneumatic cylinders, may be connected to the upper platen.FIG. 6E depicts an assembled and pressed door (frame 150 and top skin 230) leaving the lowerfirst press 420 a and passing onto the discharge conveyor.FIGS. 6B and 6C depicts theupper press 420 b in an open position and thelower press 420 a in a closed position. Each of the upper andlower press conveyor 465, for example a belt conveyor or powered rollers as shown inFIG. 6A , to assist in loading and discharging the assembled and pressed door into and from therespective presses FIGS. 6A, 6B, and 6E , the lower platens are hidden by theconveyors 465. Theconveyors 465 remain within therespective presses conveyors 465 are preferably made from a flexible material that is durable enough to withstand the pressure applied by the platens. In various exemplary embodiments, theconveyor 465 may include a first side and a second side with an open center section (not shown). The first and second sides may include belts or rollers and be positioned along the edges of the resulting door to contact the door skins 220, 230 adjacent theframe 150. The first and second side conveyors and open center section allow the lower platen to contact the central region of thebottom door skin 220 directly. Various other devices and methods allow for positioning the assembled door layups into the lower andupper presses double press 420 may also include various stops, limits, tactile sensors, and non-tactile sensors may be used to align and position the door to square theframe 150 before pressing. -
FIGS. 6F and 6G illustrate a schematic representation of thedouble press 420 in an upper position where the assembled door layup is delivered into theupper press 420 b (FIG. 6F ) and in a lower position where the assembled door layup is delivered into thelower press 420 a (FIG. 6G ). Movement of theentire press 420 between the upper position (FIG. 6F ) and the lower position (FIG. 6G ) is accomplished by hydraulic cylinder andpiston assemblies 430. Thelower press 420 a includes an upper/top platen 421 a and a lower/bottom platen 422 a, and theupper press 420 b includes an upper/top platen 421 b and a lower/bottom platen 422 b. Movement of theplatens lower press 420 a is accomplished by hydraulic cylinder andpiston assemblies 440 interconnecting thelower platen 422 a and theupper platen 421 a. Movement of theplatens upper press 420 b is accomplished by hydraulic cylinder andpiston assemblies 450 interconnecting thelower platen 422 b and theupper platen 421 b. As will be understood by one of skill in the art, the various hydraulic cylinder and piston assemblies may be driven by the hydraulic lines illustrated inFIGS. 6F and 6G . - As best shown in
FIG. 1B , after leaving thepressing station FIG. 1B ), the assembled and pressed doors are then passed to anaccumulator station non-linear accumulator accumulator FIG. 7 depicts a pair ofnon-linear accumulators conveyors FIGS. 1B and 1C ). As best shown inFIG. 1B , these side-by-side accumulators parallel lines parallel presses single conveyor 600.FIG. 8 depicts an exemplary motor driven, rotating star conveyor that has aligned and spaced cooperating arms that hold pressed doors of the type used asaccumulators - Although the exemplary embodiments discussed above are with respect to a
double press 420, it should be understood that the pressing apparatus may alternatively have three, four, five, or more presses. As the number of presses increases, the pressing time per press can likewise increase without slowing the overall movement time. Moreover, thepresses FIGS. 6C and 6D . Various material handling devices, such as a switching conveyor, may provide the assembled door layups to thepresses - As best shown in
FIG. 1C , after transiting thepressing stations accumulators conveyor 600 to a number of optional finishing stations as needed. For example, a door may be passed through astile trimming station 620 and arail trimming station 640 to remove excess frame material. If the blades of the trimmingstations stile trimming station 620 and therail trimming station 640. After the edges have been trimmed, the door may be placed through anedge coating station 660 that applies a protective preferably colored coating to the exposed edges of the stiles. Because the stiles extend vertically in the assembled door, their edges are viewable to the user so the coating masks the edges and also provides a protective barrier. Here the edges of the door, such as the exposedrails stiles 120 may be coated, painted, laminated, or otherwise finished. Other painting or coating may be accomplished at this station or separately. - When a door has completed assembly and pressing, it passes to an
inspection station 670 and is inspected by an inspector I who checks the door for quality. In various exemplary embodiments the quality inspection may be performed automatically as discussed above with respect to the doorskin delivery station 300. Any unacceptable door is either discarded or reworked, and all doors passing inspection are sent to astar conveyor 680 and then to palletizer 690 for stacking. - A number of commonly used and commercially available adhesives have been discussed above such as PUR and EVA hot melt adhesives. However, aspects of the present invention are also directed to the novel use of adhesive compositions. In an exemplary embodiment, a PUR adhesive comprising polyurethane and isocyanurate is used in the above-disclosed system. These chemicals increase the initial green or set strength of the adhesives, securing the bond between the door skin and the frame, eliminating delamination caused by the stresses of bowed or warped skins.
- The foregoing detailed description of the certain exemplary embodiments has been provided for the purpose of explaining the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated. This description is not necessarily intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Additional embodiments are possible and are intended to be encompassed within this specification and the scope of the appended claims. The specification describes specific examples to accomplish a more general goal that may be accomplished in another way.
Claims (24)
1. A system for making doors comprising:
a first pressing station comprising
a first press including a first set of platens, and
a second press including a second set of platens, each set of platens respectively having at least one platen movable relative to the other platen of the set of platens between an open state and a closed state;
the first pressing station configured to alternatingly move the first and second presses between (i) a loading/unloading position, in which one of the first and second presses is in the open state to receive at least a first assembled door in a layup state to discharge at least a second of assembled door that has been pressed, and (ii) a pressing position, in which the other of the first and second presses is in the closed state for pressing a third of assembled door
a first accumulator configured to hold the assembled doors that have been pressed in the first pressing station while an applied adhesive develops bond strength;
a second pressing station comprising
a third press including a third set of platens, and
a fourth press including a fourth set of platens, each set of platens respectively having at least one platen movable relative to the other platen of the set of platens between an open state and a closed state,
the second pressing station configured to alternatingly move the third and fourth presses between (i) a loading/unloading position, in which one of the third and fourth presses is in the open state to receive at least a fourth of assembled door and to discharge at least a fifth of assembled door that has been pressed, and (ii) a pressing position, in which the other of the third and fourth presses is in the closed state for pressing a sixth of assembled door;
a second accumulator configured to hold the assembled doors that have been pressed in the second pressing station while the applied adhesive develops bond strength; and
a conveyor configured to carry doors away from the first and second accumulators.
2. The system of claim 1 , wherein the first and second presses are movable vertically between the loading/unloading position and the pressing position, and the third and fourth presses are movable vertically between the loading/unloading position and the pressing position.
3. The system of claim 1 , further comprising hydraulics for moving the first, second, third, and fourth presses vertically between the loading/unloading position and the pressing position.
4. The system of claim 1 , wherein the first pressing station is configured to alternatively move the first and second presses after each individual assembled door is delivered thereto, and wherein the second pressing station is configured to alternatively move the third and fourth presses after each individual assembled door is delivered thereto.
5. The system of claim 1 , wherein a conveyor configured to deliver the first, second, third, or fourth press by the conveyor.
6. (canceled)
7. The system of claim 1 , wherein each of the first and second accumulators comprises a star conveyor.
8. The system of claim 1 , further comprising:
a first frame assembly station configured to apply adhesive to door frame components and to frame the door frame components and applied adhesive into door frames;
a first door assembly station configured to secure door skins on opposites surfaces of the door frames assembled in the first frame assembly station to provide assembled doors to be delivered to the first or second press;
a second frame assembly station configured to apply adhesive to door frame components and to frame the door frame components and applied adhesive into door frames; and
a second door assembly station configured to secure door skins on opposites surfaces of the door frames assembled in the second frame assembly station to provide assembled doors to be delivered to the third or fourth press.
9. The system of claim 8 , wherein the first and second presses are movable vertically between the loading/unloading position and the pressing position, and the third and fourth presses are movable vertically between the loading/unloading position and the pressing position.
10. The system of claim 8 , further comprising hydraulics for moving the first and second presses vertically between the loading/unloading position and the pressing position, and for moving the third and fourth presses vertically between the loading/unloading position and the pressing position.
11. The system of claim 8 , wherein the first pressing station is configured to alternatively move the first and second presses after each individual assembled door is delivered thereto, and wherein the second pressing station is configured to alternatively move the third and fourth presses after each individual assembled door is delivered thereto.
12. The system of claim 8 , wherein the first and second frame assembly stations, and the first and second door assembly station comprise conveyors.
13. (canceled)
14. (canceled)
15. (canceled)
16. The method of claim 21 , further comprising:
applying adhesive to door frame components and framing the door frame components and applied adhesive into door frames;
securing first and second door skins on opposites surfaces of the door frames to provide the assembled doors in the layup state.
17. A system for making door frames, comprising:
a core attachment station for connecting an expandable core to a top rail and a bottom rail;
a robotic system comprising first and second grippers configured to grip the top rail and the bottom rail, respectively, and to draw the top and bottom rails apart from one another so as to expand the connected expandable core; and
a framing station configured to connect first and second stiles to the top and bottom rails and thereby form a door frame.
18. The system of claim 17 , wherein the robotic system is configured to connect the first and second stiles to the top and bottom rails to form the door frame.
19. The system of claim 17 , wherein the door frame has four corners, and wherein the framing station comprises a jig system configured to support and hold the door frame at the four corners.
20. The system of claim 19 , wherein the jig system comprises clamps each comprising at least one respective nozzle for applying adhesive to associated edges of the stiles and rails where the stiles and rails abut one another.
21. A method of making doors, comprising:
providing the system for making doors of claim 1 ;
successively delivering assembled doors in a layup state to the first and second pressing stations;
discharging the pressed first assembled door from the first press of the first pressing station and loading the second assembled door in the layup state into the first press of the first pressing station, and simultaneously pressing the third assembled door in the second press of the second pressing station;
moving the second press into the loading/unloading position and the first press into the pressing position;
discharging the pressed fourth assembled door from the third press of the second pressing station and loading a fifth assembled door in the layup state into the third press of the second pressing station, and simultaneously pressing a sixth assembled door in the fourth press of the second pressing station; and
moving the fourth press the loading/unloading position and the third press into the pressing position.
22. The method of claim 21 , further comprising the step of holding the pressed fourth assembled door in the second accumulator and holding the pressed first assembled door in the first accumulator.
23. The method of claim 22 , further comprising the step of transporting the assembled doors away from the first and second accumulators via a conveyor.
24. The system of claim 8 , wherein the first frame assembly station comprises
a first core attachment station for connecting a first expandable core to a first top rail and a first bottom rail;
a first robotic system comprising first and second grippers configured to grip the first top rail and the first bottom rail, respectively, and to draw the first top and bottom rails apart from one another so as to expand the connected first expandable core; and
a first framing station configured to connect first and second stiles to the top and bottom rails and thereby form a first door frame.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/357,604 US20190275780A1 (en) | 2013-03-15 | 2019-03-19 | Automated door assembly and methods, press used therewith, and adhesive therefor |
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Application Number | Priority Date | Filing Date | Title |
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US201361793524P | 2013-03-15 | 2013-03-15 | |
US14/215,693 US9579818B2 (en) | 2013-03-15 | 2014-03-17 | Automated door assembly and methods, press used therewith, and adhesive therefor |
US15/445,040 US10232599B2 (en) | 2010-07-28 | 2017-02-28 | Automated door assembly and methods, press used therewith, and adhesive therefor |
US16/357,604 US20190275780A1 (en) | 2013-03-15 | 2019-03-19 | Automated door assembly and methods, press used therewith, and adhesive therefor |
Related Parent Applications (1)
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US15/445,040 Continuation US10232599B2 (en) | 2010-07-28 | 2017-02-28 | Automated door assembly and methods, press used therewith, and adhesive therefor |
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US20190275780A1 true US20190275780A1 (en) | 2019-09-12 |
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US14/215,693 Active 2034-07-04 US9579818B2 (en) | 2010-07-28 | 2014-03-17 | Automated door assembly and methods, press used therewith, and adhesive therefor |
US15/445,040 Expired - Fee Related US10232599B2 (en) | 2010-07-28 | 2017-02-28 | Automated door assembly and methods, press used therewith, and adhesive therefor |
US16/357,604 Abandoned US20190275780A1 (en) | 2013-03-15 | 2019-03-19 | Automated door assembly and methods, press used therewith, and adhesive therefor |
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US14/215,693 Active 2034-07-04 US9579818B2 (en) | 2010-07-28 | 2014-03-17 | Automated door assembly and methods, press used therewith, and adhesive therefor |
US15/445,040 Expired - Fee Related US10232599B2 (en) | 2010-07-28 | 2017-02-28 | Automated door assembly and methods, press used therewith, and adhesive therefor |
Country Status (7)
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US (3) | US9579818B2 (en) |
EP (1) | EP2969437A1 (en) |
BR (1) | BR112015023548A8 (en) |
CA (1) | CA2906842A1 (en) |
CL (1) | CL2015002783A1 (en) |
MX (1) | MX2015013206A (en) |
WO (1) | WO2014145510A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190383317A1 (en) * | 2018-06-19 | 2019-12-19 | Shanghai Runmi Technology Co.,Ltd | Device for automatically assembling shell and middle frame by glue and use method thereof |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2906842A1 (en) | 2013-03-15 | 2014-09-18 | Masonite Corporation | Automated door assembly systems and methods |
US10264720B1 (en) | 2015-06-23 | 2019-04-16 | Flextronics Ap, Llc | Lead trimming module |
GB2543637B (en) | 2015-09-11 | 2018-08-08 | Jeld Wen Uk Ltd | Method and system for assembly of recessed panel doors |
CA2998388A1 (en) | 2015-11-30 | 2017-06-08 | Masonite Corporation | Shaker doors with solid core and methods for making thereof |
MX2018010973A (en) | 2016-03-11 | 2019-01-17 | Masonite Corp | Devices and methods for mounting door frames. |
CA3016612C (en) | 2016-03-15 | 2023-10-31 | Masonite Corporation | Pre-hung doors and methods of installation therefor |
US11045929B1 (en) | 2016-04-26 | 2021-06-29 | Bright Machines, Inc. | Angle screw feeding module |
US11559917B2 (en) * | 2020-05-08 | 2023-01-24 | Jeld-Wen, Inc. | Drop roller press and method of making recessed panel doors |
Family Cites Families (80)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735461A (en) | 1956-02-21 | pater | ||
US535673A (en) | 1895-03-12 | William clayton | ||
US1870517A (en) | 1929-11-22 | 1932-08-09 | Lacey Ernest George | Veneer press |
US2565779A (en) | 1948-03-26 | 1951-08-28 | United States Steel Corp | Drive for porcupine sheet-turnover rack with timing-adjusting means |
US2889586A (en) | 1957-05-22 | 1959-06-09 | Akerberg Sigfred Hjalmer | Door structure |
US3132981A (en) | 1959-07-14 | 1964-05-12 | Emmet G Stack | Method of constructing multi-arch coreless flush doors |
US2993244A (en) | 1959-07-14 | 1961-07-25 | James John Randolph | Doors, panels, and the like |
US3367823A (en) | 1963-08-05 | 1968-02-06 | Simpson Timber Co | Automatic plywood layup apparatus and method |
US3225505A (en) | 1963-08-13 | 1965-12-28 | Lucian C Lytz | Fire-resistant door |
DE1210541B (en) | 1965-03-12 | 1966-02-10 | Siempelkamp Gmbh & Co | Device for loading a loading frame arranged in front of a multi-stage press |
US3616090A (en) | 1968-03-04 | 1971-10-26 | Jeddeloh Bros Sweed Mills Inc | Apparatus for laying up plywood panels |
US3643487A (en) | 1970-01-29 | 1972-02-22 | Littell Machine Co F J | Apparatus for continuously bending and flexing strip material |
US3671615A (en) | 1970-11-10 | 1972-06-20 | Reynolds Metals Co | Method of making a composite board product from scrap materials |
US3765993A (en) | 1971-02-22 | 1973-10-16 | Ramar Mfg Co Of Florida Inc | A layup machine for assembling panels having a pair of skins and a core |
US3824058A (en) | 1972-01-08 | 1974-07-16 | Siempelkamp Gmbh & Co | Apparatus for the production of pressed board |
US3963552A (en) | 1972-06-01 | 1976-06-15 | Trus Joist Corporation | Method of feeding sheets to a continuous laminating press |
GB1413320A (en) | 1972-12-29 | 1975-11-12 | Polyfont Sa | Process and apparatus for manufacturing flat plastics-coated objects |
US3873395A (en) | 1973-03-05 | 1975-03-25 | Monon Trailer Inc | Apparatus for forming laminated wall structures |
US3927705A (en) * | 1973-08-16 | 1975-12-23 | Industrial Woodworking Mach | Methods and means for continuous vertical finger jointing lumber |
NL7507646A (en) | 1975-06-26 | 1976-12-28 | Versteege Arnoldus Josef | METHOD AND ESTABLISHMENT FOR THE EVEN AND EQUAL COVERING OF SURFACES IN A PERIODICALLY POWERED PRODUCTION SYSTEM. |
DE2733765A1 (en) * | 1977-07-27 | 1979-02-15 | Buerkle Gmbh & Co Robert | High rate woodworking press assembly - consists of several presses displaced ensuring rapid loading and unloading |
DE2911958C2 (en) | 1979-03-27 | 1993-10-07 | Hoechst Ag | Process for packaging fibrous material in bales and suitable press arrangement therefor |
US4342615A (en) | 1979-04-24 | 1982-08-03 | George Koch Sons, Inc. | Plywood layup line |
DE3032914A1 (en) | 1980-09-02 | 1982-04-15 | Herbert 4831 Langenberg Wild | Laminated board hot pressing equipment - has several stacked vertically movable heated pressing plates with conveyor belts |
JPS59118618A (en) | 1982-12-24 | 1984-07-09 | Hitachi Ltd | Positioning device for conveyer |
US4486264A (en) * | 1983-04-18 | 1984-12-04 | Mckernan Gary M | Door frame assembly machine |
US4517148A (en) | 1983-11-01 | 1985-05-14 | Macmillan Bloedel Limited | Method for pressing a composite assembly |
US4643787A (en) | 1985-05-03 | 1987-02-17 | Versatube Corporation | Method of making an embossed panel door |
US4842669A (en) | 1987-07-23 | 1989-06-27 | The Original Lincoln Logs Ltd. | Method of manufacture and assembly system for a structural wall panel |
US5020966A (en) | 1989-01-17 | 1991-06-04 | Kiker Donald E | Pallet dispenser/accumulator |
US5155959A (en) | 1989-10-12 | 1992-10-20 | Georgia-Pacific Corporation | Firedoor constructions including gypsum building product |
DK0454936T3 (en) * | 1990-05-04 | 1994-10-31 | Stora Byggprodukter Ab | Apparatus and method for carpet or paintwork |
US5177868A (en) | 1990-06-14 | 1993-01-12 | United Dominion Industries, Inc. | Process of making an insulated door |
US5142835A (en) | 1990-10-12 | 1992-09-01 | Taylor Building Products Company | Reaction injection molded door assembly |
US5167105A (en) | 1991-04-02 | 1992-12-01 | American Containers, Inc. | Hollow door construction using an improved void filler |
US5415943A (en) | 1993-03-02 | 1995-05-16 | American Research Corporation Of Virginia | Wood composite materials and methods for their manufacture |
US5588996A (en) | 1994-04-01 | 1996-12-31 | Argus International | Apparatus for spray coating flat surfaces |
DE4428768C2 (en) | 1994-08-13 | 2001-12-06 | Herbert Wild | Press with at least two superimposed pressure rooms |
GB2293853B (en) * | 1994-10-05 | 1997-12-10 | Carroll Building Group | Panel door manufacture |
IE74236B1 (en) * | 1994-11-16 | 1997-07-16 | Jurras Ltd | A process for producing doors |
IT1272853B (en) | 1994-11-30 | 1997-06-30 | Circuit Line Spa | METHOD AND EQUIPMENT FOR THE AUTOMATIC LOADING AND UNLOADING OF CIRCUITS PRINTED ON MACHINES FOR THE PERFORMANCE OF THE ELECTRIC TEST |
US5665197A (en) | 1995-02-27 | 1997-09-09 | Kitagawa Seiki Kabushiki Kaisha | Plywood lay-up system |
US5776292A (en) | 1995-02-27 | 1998-07-07 | Kitagawa Seiki Kabushiki Kaisha | Plywood lay-up system |
US5560168A (en) | 1995-03-10 | 1996-10-01 | The Stanley Works | Swinging door with mirror insert on one face and method of making same |
US6067699A (en) | 1995-04-19 | 2000-05-30 | Jeld-Wen, Inc. | Method for assembling a multi-panel door |
JP3761258B2 (en) | 1996-08-20 | 2006-03-29 | 株式会社名南製作所 | Veneer single plate press processing equipment |
US5752594A (en) | 1996-09-16 | 1998-05-19 | Maintenance M.G.F., Inc. | Loading device having multiple tongs for handling lumber and the like |
DE19707293C1 (en) * | 1997-02-24 | 1998-01-15 | Wild Maschinen Gmbh | Laminar door-blank production method |
US6132836A (en) | 1997-03-17 | 2000-10-17 | Quinif; Edward G. | Corrugated structural paper fillers for the interior areas of hollow doors and the method of making same |
US5992127A (en) | 1997-05-12 | 1999-11-30 | Quinif; Edward G. | Universal expandable spacer cores for hollow doors and the method of making same |
US5875609A (en) | 1997-05-12 | 1999-03-02 | Quinif; Edward G. | Expandable spacer cores for panel doors and the method of making same |
US6085813A (en) | 1998-10-30 | 2000-07-11 | Georgia-Pacific Corporation | Method for making plywood |
DE19916041A1 (en) | 1999-04-09 | 2000-10-12 | Dieffenbacher Gmbh Maschf | Production machine for veneer panels comprises suction conveyor belts, double belt conveyors, cutter, sewing machine and feeder belt |
US6170224B1 (en) | 1999-04-15 | 2001-01-09 | Greif Bros. Corporation | Multi-panel hollow door structures and manufacturing methods employing paperboard cores |
JP2001032436A (en) | 1999-07-27 | 2001-02-06 | Akira Yamauchi | Wooden flash panel having curve shape and door panel set |
FI20000872A0 (en) | 2000-04-12 | 2000-04-12 | Raute Oyj | Inverter for disc shaped objects |
US6389769B1 (en) | 2000-07-05 | 2002-05-21 | Efp Corporation | Door and method of making same |
GB2368364B (en) | 2000-10-12 | 2004-06-02 | Mdf Inc | Fire door and method of assembly |
JP3689907B2 (en) | 2001-04-27 | 2005-08-31 | 株式会社安中製作所 | Method for forming curved surface of curved decorative board |
US6615711B2 (en) | 2001-06-15 | 2003-09-09 | Toshiba Machine Co., Ltd. | Press-forming machine for glass |
DE10392231T5 (en) | 2002-01-23 | 2005-03-10 | Raute Wood Ltd., New Westminster | Method and device for veneering |
DE10224793C1 (en) | 2002-06-04 | 2003-07-31 | Franz Binder Ges Mbh Holzindus | Laminated wood product manufacturing plant has laminated product fed to clock-controlled press or continuous press operated in parallel |
JP2004009681A (en) | 2002-06-11 | 2004-01-15 | Matsushita Electric Ind Co Ltd | Manufacturing process for layered product, die used for it, and manufacturing process for the die |
AT411823B (en) * | 2002-10-04 | 2004-06-25 | Engel Austria Gmbh | injection molder |
US20040096535A1 (en) | 2002-11-15 | 2004-05-20 | Hudecek Robert W. | Compression molding apparatus having replaceable mold inserts |
US7501037B2 (en) | 2003-07-01 | 2009-03-10 | Jeld-Wen, Inc. | Methods and systems for the automated manufacture of composite doors |
US7314534B2 (en) | 2003-07-23 | 2008-01-01 | Masonite Corporation | Method of making multi-ply door core, multi-ply door core, and door manufactured therewith |
US7819163B2 (en) | 2003-09-16 | 2010-10-26 | Masonite Corporation | Automated door assembly system and method |
JP4461318B2 (en) | 2003-09-30 | 2010-05-12 | 大日本印刷株式会社 | Laminating apparatus and floor material manufacturing method |
SE527061C2 (en) | 2003-12-17 | 2005-12-13 | Automation Presses Tooling Ap | Membrane |
DE102004007225B3 (en) | 2004-02-13 | 2005-07-21 | Heinrich Kuper Gmbh & Co Kg | Automatic equipment joining frame bars for sandwich panels, used to construct furniture or structural components, comprises bar supply, stopping, adhering and pressing units |
WO2007087671A1 (en) | 2006-01-31 | 2007-08-09 | Hilleng International Pty Ltd | Manufacture of insulated building panels |
CN201061892Y (en) | 2007-07-02 | 2008-05-21 | 重庆星星套装门有限责任公司 | System for continuously producing rags coining door skin |
DE202007011325U1 (en) | 2007-08-13 | 2008-09-25 | H.I.T. Bertele Gmbh + Co. | Press arrangement |
FI121300B (en) | 2008-02-22 | 2010-09-30 | Raute Oyj | Method and apparatus for effecting a smoothing compression in plywood manufacture |
IT1394416B1 (en) | 2009-05-18 | 2012-06-15 | Process S R L | APPARATUS FOR THE PRODUCTION OF DRUM PANELS. |
US8171700B2 (en) | 2010-03-04 | 2012-05-08 | Michael Barnes | Hollow metal door |
ES2602711T3 (en) | 2010-07-28 | 2017-02-22 | Masonite Corporation | Automated door assembly |
ITBO20100510A1 (en) | 2010-08-05 | 2012-02-06 | Biesse Spa | MACHINE FOR PROCESSING WOODEN OR SIMILAR FIXTURES |
CA2906842A1 (en) | 2013-03-15 | 2014-09-18 | Masonite Corporation | Automated door assembly systems and methods |
-
2014
- 2014-03-17 CA CA2906842A patent/CA2906842A1/en not_active Abandoned
- 2014-03-17 EP EP14718293.5A patent/EP2969437A1/en not_active Ceased
- 2014-03-17 US US14/215,693 patent/US9579818B2/en active Active
- 2014-03-17 WO PCT/US2014/030297 patent/WO2014145510A1/en active Application Filing
- 2014-03-17 MX MX2015013206A patent/MX2015013206A/en unknown
- 2014-03-17 BR BR112015023548A patent/BR112015023548A8/en not_active Application Discontinuation
-
2015
- 2015-09-15 CL CL2015002783A patent/CL2015002783A1/en unknown
-
2017
- 2017-02-28 US US15/445,040 patent/US10232599B2/en not_active Expired - Fee Related
-
2019
- 2019-03-19 US US16/357,604 patent/US20190275780A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190383317A1 (en) * | 2018-06-19 | 2019-12-19 | Shanghai Runmi Technology Co.,Ltd | Device for automatically assembling shell and middle frame by glue and use method thereof |
US10697487B2 (en) * | 2018-06-19 | 2020-06-30 | Shanghai Runmi Technology Co., Ltd | Device for automatically assembling shell and middle frame by glue and use method thereof |
Also Published As
Publication number | Publication date |
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US10232599B2 (en) | 2019-03-19 |
BR112015023548A2 (en) | 2017-07-18 |
US20170232635A1 (en) | 2017-08-17 |
MX2015013206A (en) | 2016-04-15 |
CL2015002783A1 (en) | 2016-07-01 |
CA2906842A1 (en) | 2014-09-18 |
BR112015023548A8 (en) | 2019-12-03 |
US20140261991A1 (en) | 2014-09-18 |
US20190047171A9 (en) | 2019-02-14 |
US9579818B2 (en) | 2017-02-28 |
EP2969437A1 (en) | 2016-01-20 |
WO2014145510A1 (en) | 2014-09-18 |
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