Processing

Please wait...

Settings

Settings

Goto Application

1. WO1992014594 - METHOD AND ASSEMBLY FOR CONTINUOUSLY OPERATING PRODUCTION OF BOX-SECTION AND FRAME STRUCTURES

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

WHAT IS CLAIMED IS:

1. A method for continuously operating production of box-section and frame structures from mutually joinable members c h a r a c t e r i z e d by the combination of the following workphases:
- the ends of blanks are worked in a first machining unit (2) to have the joint portions of a finger
joint and the worked blanks are joined together in a gluing press unit (3) to form a stock (12) of
continuous length,
- the stock ( 12 ) of continuous length is cut to pieces of predetermined length in the order required by the assembly of the pieces into a structure,
- the pieces are worked in said order in a second
machining unit (6) to form the joint portions
necessary for the assembly of the pieces into a
structure,
- when necessary, the pieces are shaped in a third
machining unit ( 7 ) , and
- the pieces are fed in said order to an assembly unit where they are joined to desired structures.

2... A method as defined in claim 1, c h a r a c t e r -i z e d in that the pieces are worked in the machining units (2, 6) so as to retain their longitudinal
orientation.

3. A method as defined in claims 1 and 2, c h a r a c -t e r i z e d in that the pieces are routed through the first (2) and the second (6) machining unit by a
succession of longitudinal and lateral movements, whereby the working of the pieces is performed substantially during the lateral movements.

4. A method as defined in any foregoing claim,
c h a r a c t e r i z e d in that such a first machining unit (2) is used that has a single permanently mounted cutter head and a support table controllable to a desired elevation relative to said cutter head, said table supporting the movements of the pieces on it, whereby the vertical position of the table is changed by approximately half finger spacing of the finger joint after the working of the front end of the piece so as to form compatibly different finger joint portions to the front and rear ends of the pieces, respectively.

5. A method as defined in any foregoing claim,
c h a r a c t e r i z e d in that such a second machining unit (6) is used that has two permanently mounted, mutually different cutter heads (9) and a support table controllable to a desired elevation relative to said cutter heads, said table supporting the movements of the pieces on it in an alternating order past the second cutter head to work compatibly different joint portions to every second piece.

6. A method as defined in any foregoing claim 1...4 , c h a r a c t e r i z e d in that such a second machining unit (6) is used that has four permanently mounted, mutually pairwise different cutter heads capable of working compatibly different joint portions to every second piece.

7. A method as defined in any foregoing claim,
c h a r a c t e r i z e d in that the pieces received from the second machining unit ( 6 ) are moved along a longitudinally oriented transfer track past a third machining unit (7) , in which the pieces are worked in such series arranged shaping units that are adapted movable between a free-port position and a work-port position of the units, whereby any shaping unit moved to its work-port position is employed for working a single kind of sectional shape only on the passing pieces.

8. An assembly for continuously operating production of box-section and frame structures from mutually joinable pieces, c h a r a c t e r i z e d in that assembly line comprises in a series arranged succession and connected by transfer devices to each other:
- a machining unit (2) comprised of a single permanently mounted cutter head and a support table
controllable to a desired elevation relative to said cutter head, capable of forming the joint portions of finger joints to the ends of the pieces,
- a gluing press unit (3) for joining blanks to each other so as to form a stock (12) of continuous
length by means of finger joints,
- a cutting unit (4) of the continuous stock,
- a machining unit (6) comprised of at least two
permanently mounted, mutually different cutter heads (9) and a support table controllable to a desired elevation relative to said cutter heads, capable of working female joint portions to every second piece and male joint portions to every other second piece,

- possibly, a shaping unit (7) of the pieces, and

- an assembly unit of pieces,
whereby said production line further has a control unit connected to said cutting unit (4) , capable of steering said cutting unit so that the stock is cut into pieces of predetermined length required in the assembly of the structures .