| US 7,402,272 B2 | ||
| Mold-spraying apparatus of molding system | ||
| Jacek Kalemba, Oakville (Canada); and Josef Graetz, Erin (Canada) | ||
| Assigned to Husky Injection Molding Systems Ltd., Bolton, Ontario (Canada) | ||
| Filed on Jan. 02, 2008, as Appl. No. 11/968,513. | ||
| Application 11/968513 is a continuation of application No. 11/690161, filed on Mar. 23, 2007, granted, now 7,364,419. | ||
| Application 11/690161 is a continuation of application No. 11/494313, filed on Jul. 27, 2006, abandoned. | ||
| Prior Publication US 2008/0102221 A1, May 01, 2008 | ||
| Int. Cl. B29C 45/24 (2006.01) | ||
| U.S. Cl. 264—309 [264/299; 264/DIG. 72; 427/427.3; 427/421.1; 425/90; 425/225; 425/542; 425/103] | 12 Claims |
| 12. A method of operating a mold-spraying apparatus of a molding apparatus, the molding apparatus having: (a) a fixed platen,
(b) a movable platen, (c) a platen-moving mechanism being configured to move the movable platen relative to the fixed platen,
and (d) a mold having molding surfaces being supported by the fixed platen and the movable platen, and the mold defining a
mold envelope, the mold-spraying apparatus having: (i) a spray nozzle, (ii) a rotatable shaft being rotatably mounted to the
fixed platen, the rotatable shaft being attached to the spray nozzle, (iii) a camming surface being movable with the movable
platen, (iv) a cam follower being attached to the rotatable shaft, and the cam follower being engageable with the camming
surface, the method comprising:
actuating the platen-moving mechanism so that the movable platen may be moved; and
engaging the cam follower with the camming surface so that the rotatable shaft and of the spray nozzle may be rotated, and
the spray nozzle becomes:
(i) rotated proximate of the molding surfaces to spray the molding surfaces when a movable portion of the mold being attached
with the movable platen becomes separated from a fixed portion of the mold being attached with the fixed platen, and
(ii) rotated to a position outside the mold envelope before the movable portion of the mold makes contacts the fixed portion
of the mold.
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