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US 2003/0119640 A1Published application
Mold for forming cardboard boxes
OwnerJose Boix Jaeninventor
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OwnerJose Boix Jaeninventor
Estimating the term…
Cardboard boxes are formed starting from a stamped sheet which is vertically pushed by a descending core (13) for folding the sectors (6) that are going to form the sides and those that are going to form the front ends (7), including equipment for folding of the extensions and/or flaps (8, 10) which are folded on the front ends and/or sides. The mold is intended to shape boxes having an upper horizontal bridge (9) in the sides (6), bridges presenting flaps (10) which fold over the front ends (7), being fixed to the outer face of them, with these front ends (7) in turn presenting end extensions (8) which are folded in the inner face of the sides (6). The mold includes runners (11) adjustable in height, permitting to fold the end extensions (8) of the front ends (7), also having wedges in ramp (14) and presses (15) with an inclined plane (16), for folding the flaps (10) of the upper bridges (9) of the sides (6), these flaps (10) being folded on the front ends (7).
A mold for forming cardboard boxes for permitting assembly of cardboard boxes which are provided with longitudinal extensions on their sides for forming upper horizontal bridges on said sides, the longitudinal extensions or bridges being prolonged on their ends having flaps which are folded and attached onto an outer face of corresponding front ends, said front ends in turn being prolonged on extensions which by folding are attached onto an inner face and being fixed on the sides, the mold having:
The mold for forming cardboard boxes according to any of the preceding claims, wherein the sliding wedges and the presses for folding extensions are exchangeable so as to adapt geometry to variations in shape of a corresponding box.
The mold for forming cardboard boxes according to any of the preceding claims, wherein the presses are associated with a deformable parallelogram mechanism which is operated by a cylinder so as to produce:
The mold for forming cardboard boxes according to any of the preceding claims, further comprising two fingers with a projection inclined downwards an inside, so that one of the flaps for each bridge starts folding in advance of the other flap, preventing the two flaps for each bridge from contacting each other, said two fingers being located in two opposite points of the structure, preferably in diagonal opposition.
Dependencies are inferred from the claim text.