ROTARY UNWINDER FOR PROCESSING A WOODEN SHEET BALL, PROVIDED WITH AN IMPROVED BALL ANTIFLEXION DEVICE

摘要

P A ROTARY UNWINDER FOR THE TRANSFORMATION OF A WOODEN BALL INTO UNLOADED SHEETS, WHICH INCLUDES A BALL ANTIFLEXING DEVICE 15 CONSISTING OF A FIRST AND A SECOND GROUP OF PRESSING ROLLERS 20, 21 ACTING RESPECTIVELY ON THE UPPER HALF ON THE LOWER HALF OF THE BALL. THE FIRST GROUP OF ROLLERS 20 IS MOUNTED ALONG A BEAM 22 WHICH CAN MOVE IN THE PLANE WHERE IT IS. FROM THIS BEAM ARE EXTENDED ARTICULATED ARMS SUPPORTING SAID SECOND GROUP OF ROLLERS 21. TO SAID BEAM 22 AND TO SAID ARTICULATED ARMS, ARE ASSOCIATED MEANS OF GUIDANCE AND ACTUATION WHICH HOLD THE SAID GROUPS 20, 21 IN CONTACT WITH THE BALL 15 AS IT'S DIMINISHED. /P