Apparatus and process for separating stacks of sheets into bundles
First Claim
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1. A process for separating a bundle of folded sheets from a stack of folded sheets, said stack being on a vertically displaceable elevator, said bundle having a predetermined number of sheets, said process comprising the steps:
- (a) inserting a first separator plate into said stack, thereby defining said bundle;
(b) inserting a second separator plate into said stack above said first separator plate; and
(c) cooperatively lowering said elevator and said first separator plate, such that said elevator and said first plate hold a bundle therebetween and said bundle is effectively separated from said stack.
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Abstract
Method and apparatus for automatically separating interfolded sheets from an interfolder into bundles having a predetermined count. Two separator plates are inserted into the stack of sheets at the proper sheet count, defining a bundle. An elevator and one of the separator plates take the bundle away from the discharge area of the interfolders.
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Citations
17 Claims
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1. A process for separating a bundle of folded sheets from a stack of folded sheets, said stack being on a vertically displaceable elevator, said bundle having a predetermined number of sheets, said process comprising the steps:
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(a) inserting a first separator plate into said stack, thereby defining said bundle; (b) inserting a second separator plate into said stack above said first separator plate; and (c) cooperatively lowering said elevator and said first separator plate, such that said elevator and said first plate hold a bundle therebetween and said bundle is effectively separated from said stack. - View Dependent Claims (2, 3)
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4. A process for receiving interfolded sheets directly from an interfolder as the sheets are being formed into a stack, and separating from the stack-forming area, a bundle of a predetermined number of sheets, said method comprising the steps of:
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(a) forming said stack of interfolded sheets on an elevator raised to a stack-receiving position; (b) inserting a first separator plate into said stack, thereby defining said bundle; (c) inserting a second separator plate into said stack above said first separator plate; and (d) cooperatively lowering said elevator and said first separator plate, such that said elevator and said first plate hold said bundle therebetween and said bundle is effectively separated from said stack. - View Dependent Claims (5, 6)
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7. A process for forming a stack of interfolded sheets and separating a bundle from said stack, said bundle having a predetermined number of sheets, said process comprising the steps of:
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(a) interfolding sheets on an interfolder and forming a stack of interfolded sheets on an elevator raised to a stack receiving position, at the discharge location of said interfolder, said elevator having a line of movement; (b) lowering said elevator as sheets are added to said stack; (c) inserting a first separator plate into said stack at a first elevation thereby defining said bundle between said first plate and said elevator; (d) inserting a second separator plate into said stack above said first plate; (e) continuing to accumulate said stack of sheets on said second plate; and (f) lowering said elevator and said first plate cooperatively such that said bundle is held between said first plate and said elevator and is separated from said stack. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification