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US 10,441,986 B2Granted
Method for automatically bending spacer elements for insulating glass panes—double glazings and machine for carrying out the method
AssigneeLombarda Macchine S.R.L.
InventorGiovan Battista Lattuada
Life of this patent
Estimating the term…
Abstract
A computer controlled method for bending profiles for making insulating frames for double and triple glass pane glazings comprises at least the steps of: automatically feeding the profile to a profile machining section; immediately bringing the profile to a bending position, in which the profile is heated directly by hot air jets to a malleable condition at the bending position without moving the profile in its malleable condition.
Claims7
A computer controlled method for bending insulating glazing frame profiles, comprising at least the steps of:
- providing an automated profile heating/bending/cooling system comprising:
- a self-adjusting top forming punch with a built-in top cooling system;
- a movable top heating system;
- a bottom cooling system;
- a profile raising/bending system;
- a movable locking gripper;
- and a bottom heating system;
- automatically feeding said profile into a machining section of said automated profile heating/bending/cooling system and bringing said profile to a bending position and firmly locking said profile in said movable locking gripper in said bending position,
- heating to a malleable condition said profile firmly locked in said locking gripper by means of said top heating system so as to heat a top part of said profile and by means of said bottom heating system so as to heat a bottom part of said profile without moving said profile in said malleable condition in said bending position, said heating step comprising simultaneously heating said top part and said bottom part of said profile firmly locked in said locking gripper;
- deactivating said top heating system and said bottom heating system and moving said top heating system to a withdrawn position and in the meanwhile moving said self-centering top forming punch to an operating position thereof engaged with said profile locked in said locking gripper engaged between a front jaw and a rear jaw of said locking gripper,
- bending said profile in said bending position by means of said profile raising/bending system with a precise 90° bending angle, with an inner part of said profile precisely arranged at said 90° angle, and
- cooling said precisely 90° bent profile simultaneously by means of said bottom cooling system to cool said bottom part of said profile and by means of said built-in top cooling system of said top forming punch arranged in said operating position engaged with said profile to cool said top part of said profile.
9 more elements
A computer controlled apparatus for bending insulating glazing frame profiles comprising, all operatively interconnected on line in said apparatus:
- a profile storing arrangement;
- an automatic profile joining section;
- a profile support panel arrangement;
- an automatic profile driving system;
- a profile cutting system;
- an automated profile heating/bending/cooling system;
- wherein said automated profile heating/bending/cooling system is built-in in said apparatus and comprises:
- a movable top heating system movably arrangeable in a heating position for heating a top part of said profile and a fixed bottom heating system arranged for heating a bottom part of said profile simultaneously with heating provided by said top heating system, thereby rendering a heated part of said profile malleable in a bending position of said profile, a movable locking gripper for removably locking the profiles in said bending position;
- a movable self-centering forming punch with an integrated top cooling system engageable with said profile locked in said bending position;
- and a profile raising/bending system for bending said profile locked in said bending position and having a width of substantially 8-24 mm, thereby allowing a material type or thickness to be changed without replacing parts of said apparatus;
- and a bottom cooling system, said punch being movably engageable in an operating position with said profile arranged in said bending position when said profile is locked in said bending position by said movable locking gripper and after said top heating system has been moved out of said heating position;
- said profile raising/bending system being movable to bend said profile 90° when said punch is engaged in said operating position with said profile locked in said bending position by said movable locking gripper, and said top cooling system and said bottom cooling system being activatable simultaneously after said profile has been bent 90° by said profile raising/bending system.
9 more elements
Dependencies are inferred from the claim text.