CA2483955A1 - Valve system for the count roll of an interfolding machine - Google Patents
Valve system for the count roll of an interfolding machine Download PDFInfo
- Publication number
- CA2483955A1 CA2483955A1 CA002483955A CA2483955A CA2483955A1 CA 2483955 A1 CA2483955 A1 CA 2483955A1 CA 002483955 A CA002483955 A CA 002483955A CA 2483955 A CA2483955 A CA 2483955A CA 2483955 A1 CA2483955 A1 CA 2483955A1
- Authority
- CA
- Canada
- Prior art keywords
- vacuum
- spool
- roll
- chambers
- count
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/24—Interfolding sheets, e.g. cigarette or toilet papers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/16—Rotary folders
- B65H45/162—Rotary folders with folding jaw cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/28—Folding in combination with cutting
Abstract
An interfolding machine includes an assembly for and method of separating overlapped sheets of material at a desired sheet count. The assembly includes a vacuum assembly with a manifold having a plurality of vacuum inlet ports coupled to a valve body having a plurality of chambers. A spool is contained within the valve body and includes a plurality of ports to provide a plurality of respective vacuum paths to a rotating count roll. The spool also includes a plurality of inlet openings in its outer surface. Each opening in the spool communicates a respective set of count roll vacuum ports with a respective interior chamber of the valve body. A control valve selectively releases the vacuum pressure in the vacuum chambers to atmosphere. The selective application of vacuum pressure to the holes in the count roll creates a fold that separates the sheets to form separate stacks of sheets at the discharge of the interfolding machine.
Claims (17)
1. A vacuum assembly for a count roll having a plurality of vacuum passage, each of which communicates with vacuum holes along an outer surface, the count roll configured to separate a predetermined count of overlapped sheets, comprising:
a manifold having a plurality of vacuum inlet ports;
a valve body having a plurality of vacuum chambers;
a spool contained within the valve body, the spool being connected to the roll so as to rotate with the roll, and having a plurality of spool ports that communicate with the vacuum passages of the count roll, wherein the spool includes openings that communicate the spool ports with the vacuum chambers; and a release valve for selectively exposing the valve chambers to atmosphere upon rotation of the roll and the spool.
a manifold having a plurality of vacuum inlet ports;
a valve body having a plurality of vacuum chambers;
a spool contained within the valve body, the spool being connected to the roll so as to rotate with the roll, and having a plurality of spool ports that communicate with the vacuum passages of the count roll, wherein the spool includes openings that communicate the spool ports with the vacuum chambers; and a release valve for selectively exposing the valve chambers to atmosphere upon rotation of the roll and the spool.
2. The vacuum assembly as recited in claim 1, wherein the vacuum assembly further includes a bearing arrangement between the spool and the valve body for rotatably supporting the spool in the valve body.
3. The vacuum assembly as recited in claim 1, wherein a valve assembly is connects at each of a pair of ends defined by the count roll.
4. The vacuum assembly as recited in claim 1, wherein the spool includes a plurality of chambers that communicated between the spool openings and the count roll vacuum passages.
5. The vacuum assembly as recited in claim 5, wherein the spool chambers open onto an end defined by the spool, and wherein the release valve overlies the end of the spool and includes an opening that selectively exposes the spool chambers to the atmosphere upon rotation of the spool.
6. The vacuum assembly as recited in claim 5, wherein the release valve is disposed adjacent a wear plate.
7. The vacuum assembly as recited in claim 5, wherein the release valve includes a generally U-shaped opening configured to selectively align with and release vacuum pressure in the one or more of the plurality of chambers in the spool.
8. The vacuum assembly as recited in claim 1, wherein the manifold generally includes a plurality of cover components that are interconnected with a plurality of vacuum inlet components, wherein the cover components and vacuum inlet components enclose recesses defined by the valve body to form the vacuum chambers.
9. A folding machine for folding sheets of material, comprising:
an assembly that includes a roll configured to count successive sheets of the material through the folding machine, the roll including a plurality of vacuum holes configured to provide a vacuum pressure to an outer surface defined by the roll;
a vacuum assembly that communicates vacuum pressure to the roll, comprising:
a manifold having a plurality of vacuum inlet ports;
a valve body having a plurality of vacuum chambers;
a spool contained within the valve body, the spool being connected to the roll so as to rotate with the roll, and having a plurality of spool ports that define a plurality of respective vacuum paths of the spool selectively communicate the vacuum pressure from the vacuum chambers of the valve body to the vacuum holes of the roll; and a release valve for selectively exposing at least one of the vacuum paths of the spool to atmosphere to cut off the supply of vacuum pressure to the vacuum holes.
an assembly that includes a roll configured to count successive sheets of the material through the folding machine, the roll including a plurality of vacuum holes configured to provide a vacuum pressure to an outer surface defined by the roll;
a vacuum assembly that communicates vacuum pressure to the roll, comprising:
a manifold having a plurality of vacuum inlet ports;
a valve body having a plurality of vacuum chambers;
a spool contained within the valve body, the spool being connected to the roll so as to rotate with the roll, and having a plurality of spool ports that define a plurality of respective vacuum paths of the spool selectively communicate the vacuum pressure from the vacuum chambers of the valve body to the vacuum holes of the roll; and a release valve for selectively exposing at least one of the vacuum paths of the spool to atmosphere to cut off the supply of vacuum pressure to the vacuum holes.
10. The folding machine as recited in claim 9, wherein the vacuum assembly further includes a bearing that rotatably supports the spool.
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11. The folding machine as recited in claim 9, wherein a valve assembly is connected at each of a pair of opposite ends defined by the roll.
12. The folding machine as recited in claim 9, wherein the spool includes a plurality of chambers that define the vacuum paths, each of the plurality of chambers communicating with one of the plurality of sets of vacuum holes along the circumference of the roll.
13. The folding machine as recited in claim 9, wherein the spool vacuum paths open onto an end defined by the spool, and wherein the release valve comprises a cover plate that overlies the end of the spool.
14. The folding machine as recited in claim 13, wherein the cover plate is spring-loaded against the end of the spool.
15. The folding machine as recited in claim 13, wherein the release valve includes a generally U-shaped opening configured to selectively align with and release vacuum pressure in the one or more vacuum paths of the spool.
16. The folding machine as recited in claim 9, wherein the manifold generally includes a valve body and a plurality of cover components each connected to a plurality of vacuum inlet components, wherein each of the plurality of vacuum inlet components includes one of the plurality of vacuum inlet ports, and wherein each of the cover components generally extends a first portion of a circumference of the valve body, wherein each of the vacuum inlet components generally extends a remaining circumference of the valve body, and wherein the vacuum inlet components and the cover components enclose recesses in the valve body the form the vacuum chambers.
17. A method of separating successive overlapped sheets of material, the method comprising the acts of:
providing a vacuum control valve including a spool, and a count roll, the count roll configured to create a fold separating a count of the successive sheets of material, the spool including a plurality of chambers each configured to communicate a vacuum pressure at a plurality of ports along a perimeter of the spool with a plurality of holes along a circumference of the count roll;
rotating the spool along with the count roll;
supplying vacuum from a valve body through the spool to vacuum ports of the count roll to engage a sheet with the count roll throughout a predetermined rotation of the count roll; and selectively exposing the spool chambers to atmosphere to cut off the supply of vacuum to the holes of the count roll, to disengage the sheet from the count roll.
providing a vacuum control valve including a spool, and a count roll, the count roll configured to create a fold separating a count of the successive sheets of material, the spool including a plurality of chambers each configured to communicate a vacuum pressure at a plurality of ports along a perimeter of the spool with a plurality of holes along a circumference of the count roll;
rotating the spool along with the count roll;
supplying vacuum from a valve body through the spool to vacuum ports of the count roll to engage a sheet with the count roll throughout a predetermined rotation of the count roll; and selectively exposing the spool chambers to atmosphere to cut off the supply of vacuum to the holes of the count roll, to disengage the sheet from the count roll.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50858003P | 2003-10-03 | 2003-10-03 | |
| US60/508,580 | 2003-10-03 | ||
| US10/957,006 US7219890B2 (en) | 2003-10-03 | 2004-10-01 | Valve system for the count roll of an interfolding machine |
| US10/957,006 | 2004-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2483955A1 true CA2483955A1 (en) | 2005-04-03 |
| CA2483955C CA2483955C (en) | 2011-05-17 |
Family
ID=34421761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2483955A Expired - Fee Related CA2483955C (en) | 2003-10-03 | 2004-10-04 | Valve system for the count roll of an interfolding machine |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BRPI0406063B1 (en) |
| CA (1) | CA2483955C (en) |
-
2004
- 2004-10-04 BR BRPI0406063A patent/BRPI0406063B1/en not_active IP Right Cessation
- 2004-10-04 CA CA2483955A patent/CA2483955C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0406063B1 (en) | 2016-05-31 |
| CA2483955C (en) | 2011-05-17 |
| BRPI0406063A (en) | 2005-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20161004 |