Modular cutting head apparatus for high speed wrapping machine
AssigneeDoboy Packaging Machinery, Inc.
InventorsNorbert P. Keopple, Stanley D. Denker
Life of this patent
Estimating the term…
Abstract
A cutting head apparatus for use in a high speed horizontal wrapper. The apparatus has two modular cutting heads each with a cutting shaft. The cutting shafts cooperate for cutting and sealing wrapping material between the products being wrapped. The cutting shafts are journaled for rotation in bearing blocks located on opposing ends of the shafts. Each modular cutting head can be mounted in at least two operative positions on a cutting head support frame. The bearing blocks of the modular cutting heads are mounted on the cutting head apparatus to permit movement of the shafts away from the cutting area in the event a product becomes misaligned and the cutting blade and anvil contact the misaligned product.
Claims13
A cut/seal head apparatus for use in high speed wrapping and packaging machines comprising:
- (a) a frame having first and second parallel, spaced-apart channels;
- (b) first and second pairs of bearing blocks slidingly received in said first and second channels;
- (c) a first cut/seal head shaft supporting a cut/seal head and having opposed ends journaled for rotation in the first pair of bearing blocks;
- (d) a second cut/seal head shaft supporting a cut/seal head and having opposed ends journaled for rotation in the second pair of bearing blocks;
- (e) biasing means cooperating between said frame and said first and second pairs of bearing blocks for normally biasing the first and second cut/seal head shafts toward one another;
- and
- (f) drive means for imparting rotational motion to the first and second cut/seal head shafts, the drive means including
- (i) a motor having an output shaft with a first belt pulley affixed to the output shaft:
- (ii) subframe member having a pair of jack shafts journaled for rotation therein on parallel axis perpendicular to the motor output shaft at vertically offset locations said first and second jack shafts having second and third belt pulleys of equal size affixed individually to the first and second jack shafts:
- (iii) a further jack shaft journaled for rotation on the subframe member on an axis parallel to the motor's output shaft, the further jack shaft having a fourth belt pulley equal in size to the first belt pulley:
- (iv) an endless belt deployed about the first, second, third and fourth belt pulleys to drive the pair of jack shafts in opposite directions:
- and
- (v) U-joint coupling means extending between the pair of jack shafts and the first and second cut/seal shafts, the U-joint coupling means permitting both the first and second cut/seal head shafts to be displaced away from one another against a force imparted by the biasing means while continuing to be rotated.
A cut/seal head apparatus for use in high speed wrapping and packaging machines comprising:
- (a) a frame having first and second parallel, spaced-apart channels;
- (b) first and second pairs of bearing blocks slidingly received in said first and second channels;
- (c) a first cut/seal head shaft supporting a cut/seal head and having opposed ends journaled for rotation in the first pair of bearing blocks;
- (d) a second cut/seal head shaft supporting a cut/seal head and having opposed ends journaled for rotation in the second pair of bearing blocks, said first and second cut/seal head shafts being rotatable independently of one another;
- (e) biasing means cooperating between said frame and said first and second pairs of bearing blocks for normally biasing the first and second cut/seal head shafts toward one another;
- and
- (f) drive means for imparting rotational motion to the first and second cut/seal head shafts, the drive means including U-joint coupling means for permitting both the first and second cut/seal head shafts to be displaced away from one another against a force imparted by the biasing means while continuing to be rotated.
Dependencies are inferred from the claim text.