Patent EA-000154-B1 (EA)
Title: Improved dough divider
Inventor: WILLETT PAUL EATON
IPC: A21C5/02
Filed: 1996-04-19
Abstract: 1. A dough divider including: a frame locatable adjacent a mixing bowl of a dough mixer; a first cylinder, hingedly mounted on the frame, for movement between a first position and a second position; a reciprocating sleeve or tube in the first cylinder; a first reciprocating piston in the sleeve or tube; a divider body on the frame, extendable into at least a portion of the mixer bowl, having a curved face engageable with dough in the mixer bowl; second cylinder in the divider body, operably connected to the curved face; and a second reciprocating piston in the second cylinder, so arranged that: in the first position, the first piston and the sleeve or tube are retracted and the first cylinder and/or the sleeve or tube receives a charge of dough from the curved face of the divider body as the mixing bowl rotates; the sleeve or tube is advanced to cut the charge of dough from the remainder of the dough in the mixing bowl; the first cylinder is moved to the second position and the charge of dough is transferred to the second cylinder by advancing the first piston; a pre-set quantity of dough remains in the second cylinder as the first cylinder returns to its first position; and the pre-set quantity of dough is ejected from the second cylinder by advancing the second piston. 2. A dough divider according to Claim 1 wherein it comprises a frame locatable adjacent a mixing bowl of a dough mixer; a sub-frame or housing hingedly mounted on the frame, for movement between a first position and a second position; a reciprocating sleeve or tube mounted in or on guide means in or on the sub frame or housing; a first reciprocating piston in the sleeve or tube; a divider body on the frame, extendable into at least a portion of the mixer bowl, having a curved face engageable with dough in the mixer bowl; a second cylinder in the divider body, connected to the curved face; and a second reciprocating piston in the second cylinder, so arranged that: in the first position of the sub-frame or housing, the first piston and the sleeve or tube are retracted and the sleeve or tube receives a charge of dough from the curved face of the divider body as the mixing bowl rotates; the sleeve or tube is advanced to cut the charge of dough from the remainder of the dough in the mixing bowl; the sub-frame or housing is moved to the second position and the charge of dough is transferred to the second cylinder by advancing the first piston; a pre-set quantity of dough remains in the second cylinder as the sub-frame or housing returns to its first position; and the pre-set quantity of dough is ejected from the second cylinder by advancing the second piston. 3. A dough divider as claimed in Claim 1 or Claim 2 wherein: the guide means comprises bars, rods, rails, tracks, a first cylinder or the like to guide the sleeve or tube as it is advanced and retracted (relative to the divider body). 4. A dough divider as claimed in any one of Claims 1 to 3 wherein: the frame is mounted above the mixer bowl and is raised vertically; swung to one side of the mixer bowl; or swung upwardly and rearwardly of the mixer bowl. 5. A dough divider as claimed in any one of Claims 1 to 4 wherein: as the first cylinder returns to the first position, a further charge of dough is drawn into the first cylinder by retraction of the first piston and the sleeve or tube. 6. A dough divider as claimed in any one of Claims 1 to 5 wherein: in the second position, the first cylinder will be aligned with the second cylinder and the advance of the first piston will transfer a quantity of dough from the first cylinder to the second cylinder causing the second piston to be retracted in the second cylinder; and further advance of the first piston will cause the dough in the second cylinder to be compressed to remove any air or other gases. 7. A dough divider as claimed in Claim 6 wherein: as the first cylinder swings downwardly from the second position, a peripheral cutting lip on the sleeve will cut the dough remaining in the first cylinder from the preset quantity of dough in the second cylinder, and the first piston is advanced to eject this remaining dough from the first cylinder into the mixing bowl. 8. A dough divider as claimed in Claim 7 wherein: when the second piston is advanced to eject the pre-set quantity of dough from the second cylinder, the dough is ejected onto a lifting tray mounted on the top of the first cylinder, the lifting tray being connected to the first cylinder by a curved plate which passes in front of the second cylinder as the first cylinder is moved from the second position to the first position. 9. A dough divider as claimed in any one of Claims 1 to 8 wherein: the pistons, and the sleeve, are advanced and retracted hydraulically, pneumatically and/or mechanically, a hydraulic or pneumatic ram optionally moving the first cylinder between the first and second positions. 10. A dough divider as claimed in any one of Claims 1 to 9 wherein guide means within the mixer bowel, suspended from the frame, direct the dough towards the curved face of the divider body; and sensor means, on the frame monitor the quantity of dough in the mixer bowl. 11. A dough divider as claimed in any one of Claims 1 to 10 wherein: two or more first and second cylinder pairs are provided to respectfully divide the dough in the mixerbowl into the pre-set quantities. 12. A dough divider as claimed in any one of Claims 1 to 11 wherein: the first cylinder is movable to an intermediate position between the first and second positions, and the first piston is advanced to compress the charge of dough, where a pre-set minimum weight of dough in the charge of dough is indicated by a pressure on the first piston before the first piston engages a proximity switch. 13. A dough divider as claimed in any one of Claims 1 to 12 wherein: travel of the second piston in the second cylinder controls the weight of the dough divided, the travel being adjustable to enable the weight of dough divided to be varied.