Web winding apparatus

Claim 2

In web winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mounted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein; said bedroll comprises a cylindrical shell defining an internal generally cylindrical hollow chamber, the surface of said shell having a plurality of apertures therein; and said apparatus includes: stationary suction means communicating with said apertures internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel, said suction means comprising: a stationary vacuum box disposed adjacent a portion of the periphery of the outside surface of said shell; and means for creating a partial vacuum within said vacuum box, whereby a partial vacuum is created in said internal generally cylindrical hollow chamber within said shell.

Claim 3

In web-winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mouNted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein: the surface of said bedroll has a plurality of apertures therein, said apertures being in the form of axially aligned and circumferentially spaced grooves in the surface of said bedroll; and said apparatus includes stationary suction means communicating with said grooves internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel.

Claim 4

In web-winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mouNted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein: the surface of said bedroll has a plurality of apertures therein, said apertures being in the form of axially aligned and circumferentially spaced grooves in the surface of said bedroll; and said apparatus includes stationary suction means communicating with said grooves internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel.

Claim 5

The improvement in web-winding apparatus according to claim 2, wherein: said web has evenly spaced transverse lines of weakness along its length; and said grooves are spaced apart by a distance equal to the distance between said lines of weakness.

Claim 6

In web-winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mounted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein: the surface of said bedroll has a plurality of apertures therein, and said apparatus includes: stationary suction means communicating with said apertures internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel; and web disposal means disposed adjacent the surface of said bedroll beyond said pickup position and beyond the effective extent of said suction means along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 7

In web-winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mounted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein: the surface of said bedroll has a plurality of apertures therein, and said apparatus includes: stationary suction means communicating with said apertures internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel; and web disposal means disposed adjacent the surface of said bedroll beyond said pickup position and beyond the effective extent of said suction means along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 8

The improvement in web-winding apparatus according to claim 4, wherein said web disposal means comprises a brokechute.

Claim 9

The improvement in web-winding apparatus according to claim 2, wherein: said bedroll comprises a cylindrical shell defining an internal generally cylindrical hollow chamber; said apertures comprise axially aligned and circumferentially spaced grooves in the surface of said shell; and including; at least one passageway connecting said groove with said internal generally cylindrical hollow chamber; and a cover piece disposed along said groove in a manner limiting the circumferential width of said groove exposed to the surface of said shell while leaving substantially open the radially inward portion of said groove.

Claim 10

In web winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mounted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein: the surface of said bedroll has a plurality of apertures therein; said bedroll has at least one axially aligned groove in its surface; and said apparatus includes: stationary suction means communicating with said apertures internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel; a web support member sealingly disposed within said groove and adapted for cyclical movement from a first position to a second position outwardly spaced from said first position and at least radially outward of the outer surface of said bedroll so that it supports a transverse segment of the web fed in partial wrapping engagement over said bedroll, said web support member having a plurality of apertures along its length communicating with said suction means; and actuating means for moving said web support member in a predetermined cyclical manner.

Claim 11

In web winding apparatus, wherein a web is fed in partial wrapping engagement over a bedroll to a core disposed on one of a plurality of rotatably mounted winding mandrels carried in revolution by a rotatable turret past a pickup position where the free leading edge of a web formed by transverse severance of the web is transferred to a core disposed on a successive winding mandrel, the improvement wherein: the surface of said bedroll has a plurality of apertures therein; said bedroll has at least one axially aligned groove in its surface; and said apparatus includes: stationary suction means communicating with said apertures internally of said bedroll and effective for holding portions of the web overlying said apertures to the bedroll during a predetermined length of web travel; a web support member sealingly disposed within said groove and adapted for cyclical movement from a first position to a second position outwardly spaced from said first position and at least radially outward of the outer surface of said bedroll so that it supports a transverse segment of the web fed in partial wrapping engagement over said bedroll, said web support member having a plurality of apertures along its length communicating with said suction means; and actuating means for moving said web support member in a predetermined cyclical manner.

Claim 12

The improvement in web-winding apparatus according to claim 7, including web severing means operably connected to said web winding apparatus and adapted to transversely sever said web along a line preceding said supported transverse segment.

Claim 13

The improvement in web-winding apparatus according to claim 7, including means for applying adhesive to at least portions of said transverse segment while it is disposed upon said web support member radially outward of the outer surface of said bedroll.

Claim 14

The improvement in web-winding apparatus according to claim 7, including: means for applying adhesive to at least portions of said supported transverse segment while it is disposed upon said web support member radially outward of the outer surface of said bedroll; and web severing means operably connected to said web-winding apparatus and adapted to transversely sever said web along a line preceding said supported transverse segment, whereby the leading end of said web following said line of severance and containing adhesive is held in contact with said web support member by means of partial vacuum communicating through said plurality of apertures therein, and is pressed into contact with a core disposed on one of said winding mandrels at said pickup position to commence the winding of a new roll.

Claim 15

The improvement in web-winding apparatus according to claim 8, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position and beyond the effective extent of said suction means along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 16

The improvement in web-winding apparatus according to claim 9, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position and beyond the effective extent of said suction means along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 17

The improvement in web-winding apparatus according to claim 10, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position and beyond the effective extent of said suction means along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 18

The improvement in web-winding apparatus according to claim 12, wherein said web disposal means comprises a brokechute and means to create a partial vacuum therein, whereby the leading end of said web is drawn from said bedroll and into said brokechute upon failure to transfer to a core on one of said mandrels at said pickup position.

Claim 19

The improvement in web-winding apparatus according to claim 12, including: means for blowing air outwardly through apertures in successive transverse portions of said bedroll and through apertures in said support member during rotation of those portions and movement of said support member through a position beyond said pickup position and adjacent said web disposal means; whereby the leading end of said web is urged from said bedroll and into said web disposal means upon failure to transfer to a core on one of said mandrels at said pickup position.

Claim 20

The improvement in web-winding apparatus according to claim 7, wherein said web support member comprises a resilient strip, and including: two axially aligned and circumferentially spaced-apart support elements spaced from and preceding said resilient strip; and severing means comprising a rotatably mounted chopper roll having a cutting element axially aligned relative to said bedroll and said chopper roll, said cutting element being arranged to penetrate the space between said support element on said support member sufficiently to sever a web running over said bedroll and supported on said support elements.

Claim 21

The improvement in web-winding apparatus according to claim 1, wherein said apertures are in the form of axially aligned and circumferentially spaced grooves in the surface of said bedroll.

Claim 22

The improvement in web-winding apparatus according to claim 1, wherein: said web has evenly spaced transverse lines of weakness along its length; and said grooves are spaced apart by a distance equal to the distance between said lines of weakness.

Claim 23

The improvement in web-winding apparatus according to claim 1, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 24

The improvement in web-winding apparatus according to claim 19, wherein said web disposal means comprises a brokechute.

Claim 25

The improvement in web-winding apparatus according to claim 1, wherein said bedroll comprises a cylindrical shell defining an internal generally cylindrical hollow chamber, said apertures comprise axially aligned and circumferentially spaced grooves in the surface of said shell, and including: at least one passageway connecting said groove with said internal generally cylindrical hollow chamber; and a cover piece disposed along said groove in a manner limiting the circumferential width of said groove exposed to the surface of said shell while leaving substantially open the radially inward portion of said groove.

Claim 26

The improvement in web-winding apparatus according to claim 1, wherein said bedroll has at least one axially aligned groove in its surface, and including: a web support member sealingly disposed within said groove and adapted for cyclical movement from a first position to a second position outwardly spaced from said first position and at least radially outward of the outer surface of said bedroll so that it supports a transverse segment of the web fed in partial wrapping engagement over said bedroll, said web support member having a plurality of apertures along its length communicating with said suction means; and actuating means for moving said web support member in a predetermined cyclical manner.

Claim 27

The improvement in web-winding apparatus according to claim 22, including web-severing means operably connected to said web-winding apparatus and adapted to transversely sever said web along a line preceding said supported transverse segment.

Claim 28

The improvement in web-winding apparatus according to claim 22, including means for applying adhesive to at least portions of said transverse segment while it is disposed upon said web support member radially outward of the outer surface of said bedroll.

Claim 29

The improvement in web-winding apparatus according to claim 22, including: means for applying adhesive to at least portions of said supported transverse segment while it is disposed upon said web support member radially outward of the outer surface of said bedroll; and web severing means operably connected to said web-winding apparatus and adapted to transversely sever said web along a line preceding said supported transverse segment, whereby the leading end of said web following said line of severance and containing adhesive is held in contact with said web support member by means of partial vacuum communicating through said plurality of apertures therein, and is pressed into contact with a core disposed on one of said winding mandrels at said pickup position to commence the winding of a new roll.

Claim 30

The improvement in web-winding apparatus according to claim 23, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position along the path of said web, said web disposal means beIng adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 31

The improvement in web winding apparatus according to claim 24, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 32

The improvement in web-winding apparatus according to claim 25, including web disposal means disposed adjacent the surface of said bedroll beyond said pickup position along the path of said web, said web disposal means being adapted to receive portions of said web which fail to transfer at said pickup position to the core on said mandrel.

Claim 33

The improvement in web-winding apparatus according to claim 27, wherein said web disposal means comprises a brokechute and means to create a partial vacuum therein, whereby the leading end of said web is drawn from said bedroll and into said brokechute upon failure to transfer to a core on one of said mandrels at said pickup position.

Claim 34

The improvement in web-winding apparatus according to claim 22, wherein said web support member comprises a resilient strip, and including: two axially aligned and circumferentially spaced-apart support elements spaced from and preceding said resilient strip; and severing means comprising a rotatably mounted chopper roll having a cutting element axially aligned relative to said bedroll and said chopper roll, said cutting element being arranged to penetrate the space between said support elements on said support member sufficiently to sever a web running over said bedroll and supported on said support elements.