Claims
- 1. A method of splicing the web of an expiring paper roll travelling at its normal operating speed with the web of a replacement paper roll, comprising the steps of:
- temporarily securing the leading end of the web of a replacement paper roll to the immediately underlying layer of paper of the replacement roll by a double-sided adhesive tape which is easily releasable from the said layer and applying a second double-sided adhesive tape to the outer surface of the said web end;
- rotatably mounting the replacement paper roll in a mill roll stand which also supports the expiring paper roll and which is rotatable about an axis intermediate and parallel to the axes of the two paper rolls;
- rotating the replacement paper roll at a peripheral speed substantially equal to that of the travelling expiring web;
- moving a rotatable web pushing roller to displace the travelling expiring web into a position in which the expiring web engages the free surface of the previously released double-sided adhesive tape or the second double-sided adhesive tape of the replacement web to effect splicing;
- severing the web of the expiring paper roll at a location upstream of the location at which the rotatable web pushing roller effects engagement of the two webs; and
- rotating the mill roll stand to move the replacement paper roll into the position previously occupied by the expiring paper roll.
- 2. A method according to claim 1, further comprising the steps of:
- moving an intermediate roller into a position in which the said roller forms with the web pushing roller a nip through which the displaced expiring web travels; and
- moving the intermediate roller into engagement with the rotating replacement paper roll, whereby the leading web and upon engagment of the free surface of the second double-sided adhesive tape thereof with the intermediate roller, adheres temporarily to the latter, thereby causing release of the first-mentioned adhesive tape, and is conveyed through the nip, being spliced therein with the web from the expiring paper roll by being attached thereto by means of the said first-mentioned adhesive tape.
- 3. A method according to claim 1, wherein a tear line is provided in the leading web end of the replacement paper roll to surround a portion of said second adhesive tape.
- 4. A method of splicing the web of an expiring paper roll which includes a back face facing inwardly and travelling at its normal operating speed with the web of a replacement paper roll which includes a back face facing inwardly, comprising the steps of:
- temporarily securing the leading end of the web of a replacement paper roll to the immediately underlying layer of paper of the replacement roll by a double-sided adhesive tape which is easily releasable from the said layer and applying a second double-sided adhesive tape to the outer surface of the said web end;
- rotatably mounting the replacement paper roll in a mill roll stand which also supports the expiring paper roll and which is rotatable about an axis intermediate and parallel to the axes of the two paper rolls;
- rotating the replacement paper roll at a peripheral speed substantially equal to that of the travelling expiring web;
- moving a rotatable web pushing roller to displace the travelling expiring web into a position in which the expiring web engages the second double-sided adhesive tape of the replacement web to effect a splicing which matches the back face of the expiring paper roll with the back face of the replacement paper roll;
- severing the web of the expiring paper roll at a location upstream of the location at which the rotatable web pushing roller effects engagement of the two webs; and
- rotating the mill roll stand to move the replacement paper roll into the position previously occupied by the expiring paper roll.
- 5. A method of splicing the web of an expiring paper roll which includes a back face facing inwardly and travelling at its normal operating speed with the web of a replacement paper roll which includes a back face facing outwardly, comprising the steps of:
- temporarily securing the leading end of the web of a replacement paper roll to the immediately underlying layer of paper of the replacement roll by a double-sided adhesive tape which is easily releasable from the said layer and applying a second double-sided adhesive tape to the outer surface of the said web end;
- rotatably mounting the replacement paper roll in a mill roll stand which also supports the expiring paper roll and which is rotatable about an axis intermediate and parallel to the axes of the paper rolls;
- rotating the replacement paper roll at a peripheral speed substantially equal to that of the travelling expiring web;
- moving a rotatable web pushing roller to displace the travelling expiring web;
- moving an intermediate roller into a position in which the said intermediate roller forms with the web pushing roller a nip through which the displaced expiring web travels;
- moving the intermediate roller into engagement with the rotating replacement paper roll, whereby the leading web end, upon engagement of the free surface of the second double-sided adhesive tape thereof with the intermediate roller, adheres temporarily to the latter, thereby causing release of the first-mentioned adhesive tape, and is conveyed through the nip, being spliced therein with the web from the expiring paper roll by being attached thereto by means of the said first-mentioned adhesive tape so as to match the back face of the expiring paper roll with the back face of the replacement paper roll;
- severing the web of the expiring paper roll at a location upstream of the location at which the rotatable web pushing roller effects engagement of the two webs; and
- rotating the mill roll stand to move the replacement paper roll into the position previously occupied by the expiring paper roll.
- 6. A method according to claim 5, wherein a tear line is provided in the leading web end of the replacement paper roll to surround a portion of said second adhesive tape.
Priority Claims (1)
Number |
Date |
Country |
Kind |
47-126594 |
Dec 1972 |
JA |
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Parent Case Info
This application is a divisional, of copending application Ser. No. 352,313, filed on Apr. 18, 1973, now U.S. Pat. No. 4,010,061.
US Referenced Citations (8)
Divisions (1)
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Number |
Date |
Country |
Parent |
352313 |
Apr 1973 |
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