Platen web splicer apparatus and method
First Claim
1. A splicing apparatus for replacing an expiring web from an expiring roll of web material with a replenishing web from a replenishing roll of web material, said apparatus comprising:
- first and second platens disposed in a spaced manner from one another so as to define a passageway between the first and second platens for allowing the expiring web to transit the passageway, wherein said expiring web is directed between said platens through said passageway, and wherein said platens are adapted for displacement toward and away from one another in a reciprocating manner;
an adhesive member attached to the replenishing web in facing relation to said second platen, wherein said adhesive member is adapted to engage and attach said replenishing web to said expiring web;
a die member having a cutting portion and a clamping portion;
retaining means attached to said first platen for initially attaching said die member to said first platen in a releasable manner while clamping said replenishing web to said first platen with the clamping portion of said die member; and
a pad member disposed on said second platen in facing relation to said first platen and adapted to engage and urge toward said first platen the expiring web transiting the passageway between the platens when said platens are displaced toward one another so that a first surface of said expiring web is placed in intimate contact with said pad member and a second opposed surface of said expiring web is placed in contact with said adhesive member and said die member'"'"'s cutting edge so as to sever said expiring web and attach said expiring web'"'"'s outfeeding end to the replenishing web via said adhesive member in splicing the expiring and replenishing webs together, and wherein said retaining means releases said die member from said first platen thereby freeing said replenishing web from said first platen and attaches said die member to said second platen for engaging and clamping a severed infeeding end of said expiring web to said second platen in effecting transfer of said die member from said first platen to said second platen.
1 Assignment
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Accused Products
Abstract
Apparatus for splicing expiring and replenishing webs of a web material includes first and second spaced platens having respective facing inner surfaces defining a passageway for transit of the expiring web, where the platens are adapted for displacement toward and away from one another in a reciprocating manner. The first platen is adapted to engage an end of the replenishing web, while the second platen is adapted to engage and position the moving expiring web. Moving the platens together with their respective inner surfaces in close proximity to one another causes a cutting die on the first platen to sever the expiring web forming outfeeding and infeeding ends of the expiring web, and to attach the expiring web'"'"'s outfeeding end to the replenishing web. Attached to the second platen in facing relation to the first platen and engaging the expiring web is an ironing pad to ensure firm contact and adhesion of expiring web to the replenishing web. During web splicing, the cutting die is transferred from the first platen to the second platen to free the replenishing web from the first platen, with the cutting die engaging and collecting or holding the expiring web'"'"'s infeeding end.
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Citations
37 Claims
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1. A splicing apparatus for replacing an expiring web from an expiring roll of web material with a replenishing web from a replenishing roll of web material, said apparatus comprising:
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first and second platens disposed in a spaced manner from one another so as to define a passageway between the first and second platens for allowing the expiring web to transit the passageway, wherein said expiring web is directed between said platens through said passageway, and wherein said platens are adapted for displacement toward and away from one another in a reciprocating manner; an adhesive member attached to the replenishing web in facing relation to said second platen, wherein said adhesive member is adapted to engage and attach said replenishing web to said expiring web; a die member having a cutting portion and a clamping portion; retaining means attached to said first platen for initially attaching said die member to said first platen in a releasable manner while clamping said replenishing web to said first platen with the clamping portion of said die member; and a pad member disposed on said second platen in facing relation to said first platen and adapted to engage and urge toward said first platen the expiring web transiting the passageway between the platens when said platens are displaced toward one another so that a first surface of said expiring web is placed in intimate contact with said pad member and a second opposed surface of said expiring web is placed in contact with said adhesive member and said die member'"'"'s cutting edge so as to sever said expiring web and attach said expiring web'"'"'s outfeeding end to the replenishing web via said adhesive member in splicing the expiring and replenishing webs together, and wherein said retaining means releases said die member from said first platen thereby freeing said replenishing web from said first platen and attaches said die member to said second platen for engaging and clamping a severed infeeding end of said expiring web to said second platen in effecting transfer of said die member from said first platen to said second platen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for splicing an expiring web from an expiring roll of web material to a replenishing web from a replenishing roll of web material, said method comprising the steps of:
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displacing the expiring web along its length between first and second platens; positioning an end of the replenishing web on an inner surface of the first platen in facing relation to said second platen; attaching a die member having a cutting portion and a clamping portion to said first platen so that the end of the replenishing web is disposed between, and engaged by, said die member and said first platen; providing a pad member on an inner surface of said second platen in facing relation to said first platen; displacing said first and second platens toward one another with the expiring web disposed in facing relation to and between the respective inner surfaces of said first and second platens; affixing the end of the replenishing web to the moving expiring web; severing the expiring web with the die member'"'"'s cutting portion in forming an outfeeding end and an infeeding end of said expiring web; adhesively attaching said expiring web'"'"'s outfeeding end to the replenishing web in splicing the expiring and replenishing webs together; transferring the die member from the first platen to the second platen in freeing the replenishing web from the first platen and engaging and holding the severed infeeding end of the expiring web to the second platen; and displacing said first and second platens away from one another allowing the expiring web and the replenishing web attached to the outfeeding end of the expiring web to exit from between the first and second platens. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification