Machine for producing aluminum foil sheets for hair coloring
First Claim
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1. A machine for folding sheets of foil, the machine comprising;
- a) a means for controllably advancing a sheet of foil along a sheet feed direction through said machine;
b) a means for folding a trailing end of said sheet such that said trailing end including a folded part and the other end left unfolded;
c) a stationary knock down table for receiving said sheet of foil thereon;
d) a knockdown roller for further folding said folded part against said knock down table, said roller made of soft resilient material for engaging with a top edge of said folded part thereby further folding and knocking down said folded part; and
e) a means for discharging said sheet from said folding machine such that said trailing end including a layered edge and said leading edge remaining unfolded.
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Abstract
A machine for cutting and folding sheets of aluminum foil dispensed from a roll. The machine comprises means for mounting a roll of aluminum foil so that aluminum foil can be advanced through the machine. Two adjacent rollers can be electrically driven to advance aluminum foil by frictional force from the roll. The machine further comprises a knife mechanism for cutting off a sheet of aluminum foil after it has passed between the rollers and means for folding an edge of a cut sheet produced by the knife mechanism. A control unit for controlling the knife mechanism ensures that the aluminum foil is cut only during predetermined intervals.
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Citations
18 Claims
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1. A machine for folding sheets of foil, the machine comprising;
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a) a means for controllably advancing a sheet of foil along a sheet feed direction through said machine;
b) a means for folding a trailing end of said sheet such that said trailing end including a folded part and the other end left unfolded;
c) a stationary knock down table for receiving said sheet of foil thereon;
d) a knockdown roller for further folding said folded part against said knock down table, said roller made of soft resilient material for engaging with a top edge of said folded part thereby further folding and knocking down said folded part; and
e) a means for discharging said sheet from said folding machine such that said trailing end including a layered edge and said leading edge remaining unfolded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of folding sheets of foil, the method comprising the steps of:
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a) advancing a sheet of foil through a folding machine;
b) folding a trailing end of said sheet such that said trailing edge including a folded part;
c) receiving said sheet on a stationary knock down table;
d) further folding said folded part against said knock down table with a knockdown roller, said roller made of soft resilient material for engaging with a top edge of said folded part thereby further folding and knocking down said folded part; and
e) discharging said sheet with a trailing layered edge from said folding machine wherein said other edge remaining unfolded. - View Dependent Claims (15, 17, 18)
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) further folding said folded part into a three layered edge.
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17. The method of folding sheets of foil claimed in claim 14 wherein said folded part initially is preferably an upstanding vertical section.
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18. The method of folding sheets of foil claimed in claim 17 wherein said folded part initially is preferably an upstanding vertical section connected to a downwardly disposed tail section forming an inverted V shape.
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16. The method of folding sheets of foil claimed in said knockdown roller further folding said folded part into a four layered edge.
Specification