CA2224266C - Processing discrete sheets of material - Google Patents
Processing discrete sheets of material Download PDFInfo
- Publication number
- CA2224266C CA2224266C CA002224266A CA2224266A CA2224266C CA 2224266 C CA2224266 C CA 2224266C CA 002224266 A CA002224266 A CA 002224266A CA 2224266 A CA2224266 A CA 2224266A CA 2224266 C CA2224266 C CA 2224266C
- Authority
- CA
- Canada
- Prior art keywords
- discrete
- sheets
- discrete sheets
- adjacent
- sheet
- 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.)
- Expired - Lifetime
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
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/34—Varying the phase of feed relative to the receiving machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Magnetic Record Carriers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Paper (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
Discrete sheets (16) are shingled to acquire lower speeds of material passag e through a process application zone (20) of the system while maintaining overall system throughput rates when compared to conventional web systems.</ SDOAB>
Description
i PROCESSING DISCRETE SHEETS OF MATERIAL
BACKGROUND AND SLTMNiARY OF THE INVENTION
The present invention relates generally to a system for use in handling discrete sheets of material and more particularly to a process and system for rapidly processing discrete sheets of material Many process systems known today, use a continuous web feed of uncut material into a process zone where a process of some type will be performed on the material.
For example, in the packaging industry, a continuous web of material is fed through a printing system, and later it is cut into individual packaging units to be folded into a desired package configuration.
A newspaper printing press is another example of a continuous feed of material (i.e. paper) passing through a printing process, later to be cut into individual sections.
Of course, printing is not the only process that is incorporated into such systems, and paper is not the only kind of material that is continuously fed into such systems. Industry in general has applied many different processes to many different materials in continuous feed systems.
The known continuous material web systems, in some applications, suffer from certain drawbacks. For example, in many known web systems, whatever speed the material is moving at any point in the system, is the same average speed the material is moving at all other points in the system.
It is advantageous in certain process applications to slow the speed of the material at one point in the system, without slowing the material speed at all other points in the system. The present invention provides a process and system wherein shingled discrete sheets of material are supplied to a process. The source of the sheets may be a previously cut stack of sheets or a web system sheeter output having discrete sheets cut from a continuous web prior to entry into a process application. Shingling (overlapping) sheets of material slows the speed of the material through a process zone. The greater the overlap of 50% enables the shingler to supply cards (discrete sheets) to a process zone at the same overall throughput rate as a web but at half the conventional web system speed.
A higher percentage of overlap allows no loss in feed rate for the overall system, but offers the advantage of cards moving through the process at a slower speed.
This slower speed is advantageous because many process work better at slower tracking speeds. For example, paper passing through an ink jet printer may not be printed properly if it is passed through the ink jets at too high a speed. Labelers could also be operated at this lower speed while not capable of operation at full conventional web system rates.
It is to be appreciated that other processes such as electrostatic operations, gluing, ink jets, labeling, and any other operation that may be performed upon the shingled sheets are within the scope of the present invention.
BACKGROUND AND SLTMNiARY OF THE INVENTION
The present invention relates generally to a system for use in handling discrete sheets of material and more particularly to a process and system for rapidly processing discrete sheets of material Many process systems known today, use a continuous web feed of uncut material into a process zone where a process of some type will be performed on the material.
For example, in the packaging industry, a continuous web of material is fed through a printing system, and later it is cut into individual packaging units to be folded into a desired package configuration.
A newspaper printing press is another example of a continuous feed of material (i.e. paper) passing through a printing process, later to be cut into individual sections.
Of course, printing is not the only process that is incorporated into such systems, and paper is not the only kind of material that is continuously fed into such systems. Industry in general has applied many different processes to many different materials in continuous feed systems.
The known continuous material web systems, in some applications, suffer from certain drawbacks. For example, in many known web systems, whatever speed the material is moving at any point in the system, is the same average speed the material is moving at all other points in the system.
It is advantageous in certain process applications to slow the speed of the material at one point in the system, without slowing the material speed at all other points in the system. The present invention provides a process and system wherein shingled discrete sheets of material are supplied to a process. The source of the sheets may be a previously cut stack of sheets or a web system sheeter output having discrete sheets cut from a continuous web prior to entry into a process application. Shingling (overlapping) sheets of material slows the speed of the material through a process zone. The greater the overlap of 50% enables the shingler to supply cards (discrete sheets) to a process zone at the same overall throughput rate as a web but at half the conventional web system speed.
A higher percentage of overlap allows no loss in feed rate for the overall system, but offers the advantage of cards moving through the process at a slower speed.
This slower speed is advantageous because many process work better at slower tracking speeds. For example, paper passing through an ink jet printer may not be printed properly if it is passed through the ink jets at too high a speed. Labelers could also be operated at this lower speed while not capable of operation at full conventional web system rates.
It is to be appreciated that other processes such as electrostatic operations, gluing, ink jets, labeling, and any other operation that may be performed upon the shingled sheets are within the scope of the present invention.
Accordingly, the present invention provides a system, comprising:
a source of a plurality of discrete sheets of material;
a shingling device adapted to arrange said discrete sheets of material such that one of said discrete sheets overlaps a portion of an adjacent one of said discrete sheets;
a conveyor adapted to transport said discrete sheets in a predetermined path;
and a process device adapted to perform a process on an exposed area of said adjacent one of said discrete sheets in said path; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of said adjacent one of said discrete sheets to trigger said process.
The present invention also provides a method of performing a repetitive process on discrete sheets of material, said method comprising the steps of:
conveying said discrete sheets in a continuously moving fashion through a path adjacent equipment to perform said process;
causing one of said discrete sheets to overlap a portion of an adjacent one of said discrete sheets;
detecting a leading edge of said adjacent one of said discrete sheets to trigger said process; and performing said process on an exposed portion of said adjacent one of said discrete sheets.
The present invention also provides a material processing system, comprising:
a plurality of discrete sheets of material;
2a a shingler for advancing said discrete sheets in an overlapping manner, wherein each sheet overlaps a portion of each adjacent sheet;
a conveyor for advancing said overlapped discrete sheets;
a device for performing a process on an exposed area of each discrete sheet as each discrete sheet continues to move through said system; and a sensor in communication with said device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
In a further aspect, the present invention provides a material processing system, comprising:
a first source of continuous material moving at a first speed;
a cutter for cutting said continuous material into a plurality of discrete sheets;
a conveyor for receiving said discrete sheets and transporting said discrete sheets in an overlapping manner, in which each discrete sheet overlaps a portion of an adjacent 1 S discrete sheet, said conveyor continuously moving at a second, slower speed;
a process device for applying a process to an exposed portion of each of said continuously moving discrete sheets; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
These and other advantages will be apparent from the following detailed description of the invention, drawings, and claims.
2b BRIEF DESCRIPTION OF THE DRAWINGS
The various features and advantages of the present invention may be more readity understood with reference to the following detailed description taken in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which:
Figure 1 is a side view of one preferred embodiment of the present invention;
Figure 2 is a top view of a shingled stack of material cards of the present invention; and Figure 3 is a top plan view of another embodiment of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS) Referring to Figure 1, an embodiment of the present invention 10 is shown.
This particular embodiment has a stack of sheets 12 and a shingling transfer/conveyor 14. The conveyor 14 conveys shingled sheets 16 to a down stacking elevator 18. While the shingled sheets 16 are being conveyed (constantly moving), a process 20 is performed on the sheets 16.
Preferably, process 20 is a non-contact or a casual contact process, such as a laser, labeler, printer, coater, gluers, etc. It is to be understood that the source of sheets 12 may be a web sheeter, that is a web of material cut into discrete sheets prior to the process being applied, rather than a stack of sheets as shown in Figure 1.
Figure 2 shows an overhead view of a portion of the shingled sheets 16. Each individual card or sheet may expose a portion of its surface 24 when shingled.
Sensors may be utilized to detect a leading edge 26 of each card to trigger the application of the process 20 onto eacli card as each card passes a predetermined process application location in the overall system. Eacli individual card need only expose enough area to allow the process 20 to treat the respective, desired, exposed area.
a source of a plurality of discrete sheets of material;
a shingling device adapted to arrange said discrete sheets of material such that one of said discrete sheets overlaps a portion of an adjacent one of said discrete sheets;
a conveyor adapted to transport said discrete sheets in a predetermined path;
and a process device adapted to perform a process on an exposed area of said adjacent one of said discrete sheets in said path; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of said adjacent one of said discrete sheets to trigger said process.
The present invention also provides a method of performing a repetitive process on discrete sheets of material, said method comprising the steps of:
conveying said discrete sheets in a continuously moving fashion through a path adjacent equipment to perform said process;
causing one of said discrete sheets to overlap a portion of an adjacent one of said discrete sheets;
detecting a leading edge of said adjacent one of said discrete sheets to trigger said process; and performing said process on an exposed portion of said adjacent one of said discrete sheets.
The present invention also provides a material processing system, comprising:
a plurality of discrete sheets of material;
2a a shingler for advancing said discrete sheets in an overlapping manner, wherein each sheet overlaps a portion of each adjacent sheet;
a conveyor for advancing said overlapped discrete sheets;
a device for performing a process on an exposed area of each discrete sheet as each discrete sheet continues to move through said system; and a sensor in communication with said device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
In a further aspect, the present invention provides a material processing system, comprising:
a first source of continuous material moving at a first speed;
a cutter for cutting said continuous material into a plurality of discrete sheets;
a conveyor for receiving said discrete sheets and transporting said discrete sheets in an overlapping manner, in which each discrete sheet overlaps a portion of an adjacent 1 S discrete sheet, said conveyor continuously moving at a second, slower speed;
a process device for applying a process to an exposed portion of each of said continuously moving discrete sheets; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
These and other advantages will be apparent from the following detailed description of the invention, drawings, and claims.
2b BRIEF DESCRIPTION OF THE DRAWINGS
The various features and advantages of the present invention may be more readity understood with reference to the following detailed description taken in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which:
Figure 1 is a side view of one preferred embodiment of the present invention;
Figure 2 is a top view of a shingled stack of material cards of the present invention; and Figure 3 is a top plan view of another embodiment of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS) Referring to Figure 1, an embodiment of the present invention 10 is shown.
This particular embodiment has a stack of sheets 12 and a shingling transfer/conveyor 14. The conveyor 14 conveys shingled sheets 16 to a down stacking elevator 18. While the shingled sheets 16 are being conveyed (constantly moving), a process 20 is performed on the sheets 16.
Preferably, process 20 is a non-contact or a casual contact process, such as a laser, labeler, printer, coater, gluers, etc. It is to be understood that the source of sheets 12 may be a web sheeter, that is a web of material cut into discrete sheets prior to the process being applied, rather than a stack of sheets as shown in Figure 1.
Figure 2 shows an overhead view of a portion of the shingled sheets 16. Each individual card or sheet may expose a portion of its surface 24 when shingled.
Sensors may be utilized to detect a leading edge 26 of each card to trigger the application of the process 20 onto eacli card as each card passes a predetermined process application location in the overall system. Eacli individual card need only expose enough area to allow the process 20 to treat the respective, desired, exposed area.
Figure 3 shows another embodiment of the present invention. In this embodiment a continuous web of material 30 moving at a relatively high speed is cut into discrete sheets 32.
The discrete sheets 32 are then forced onto a conveyor 34. The sheets may be placed on the conveyor at practically any desired orientation, including at ninety degrees right hand to the web, ninety degrees left hand to the web, or straight onto the conveyor in a line with the web.
The sheets 32 preferably overlap a portion of each adjacent sheet on the conveyor 34. The conveyor speed is slower than the web speed.
An exposed portion of each sheet is then conveyed past a process device 36, and a process is performed on the exposed portion while the sheets 32 continue moving through the system A collection device 38 or receiver may be positioned near the conveyor to collect the processed sheets.
The overlap of adjacent sheets allows the overall system output rate to remain unchanged, yet allows the discrete sheets to move at a slower speed through the process step, when compared to a system having a continuous material web all the way through the process step.
The present invention has been described in the form of several embodiments, but it is to be recognized that several modifications and variations to the invention could be made and fall within the scope of the subjoined claims.
The discrete sheets 32 are then forced onto a conveyor 34. The sheets may be placed on the conveyor at practically any desired orientation, including at ninety degrees right hand to the web, ninety degrees left hand to the web, or straight onto the conveyor in a line with the web.
The sheets 32 preferably overlap a portion of each adjacent sheet on the conveyor 34. The conveyor speed is slower than the web speed.
An exposed portion of each sheet is then conveyed past a process device 36, and a process is performed on the exposed portion while the sheets 32 continue moving through the system A collection device 38 or receiver may be positioned near the conveyor to collect the processed sheets.
The overlap of adjacent sheets allows the overall system output rate to remain unchanged, yet allows the discrete sheets to move at a slower speed through the process step, when compared to a system having a continuous material web all the way through the process step.
The present invention has been described in the form of several embodiments, but it is to be recognized that several modifications and variations to the invention could be made and fall within the scope of the subjoined claims.
Claims (11)
1. A system, comprising:
a source of a plurality of discrete sheets of material;
a shingling device adapted to arrange said discrete sheets of material such that one of said discrete sheets overlaps a portion of an adjacent one of said discrete sheets;
a conveyor adapted to transport said discrete sheets in a predetermined path;
and a process device adapted to perform a process on an exposed area of said adjacent one of said discrete sheets in said path; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of said adjacent one of said discrete sheets to trigger said process.
a source of a plurality of discrete sheets of material;
a shingling device adapted to arrange said discrete sheets of material such that one of said discrete sheets overlaps a portion of an adjacent one of said discrete sheets;
a conveyor adapted to transport said discrete sheets in a predetermined path;
and a process device adapted to perform a process on an exposed area of said adjacent one of said discrete sheets in said path; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of said adjacent one of said discrete sheets to trigger said process.
2. A method of performing a repetitive process on discrete sheets of material, said method comprising the steps of conveying said discrete sheets in a continuously moving fashion through a path adjacent equipment to perform said process;
causing one of said discrete sheets to overlap a portion of an adjacent one of said discrete sheets;
detecting a leading edge of said adjacent one of said discrete sheets to trigger said process; and performing said process on an exposed portion of said adjacent one of said discrete sheets.
causing one of said discrete sheets to overlap a portion of an adjacent one of said discrete sheets;
detecting a leading edge of said adjacent one of said discrete sheets to trigger said process; and performing said process on an exposed portion of said adjacent one of said discrete sheets.
3. The method of claim 2, further comprising the step of providing a card feeder to supply said discrete sheets to said conveying step.
4. The system of claim 1, wherein said source is a card feeder.
5. The method of claim 2, further comprising the step of providing a web sheeter to supply said discrete sheets to said conveying step.
6. The system of claim 1, wherein said source is a web sheeter output.
7. A material processing system, comprising:
a plurality of discrete sheets of material;
a shingler for advancing said discrete sheets in an overlapping manner, wherein each sheet overlaps a portion of each adjacent sheet;
a conveyor for advancing said overlapped discrete sheets;
a device for performing a process on an exposed area of each discrete sheet as each discrete sheet continues to move through said system; and a sensor in communication with said device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
a plurality of discrete sheets of material;
a shingler for advancing said discrete sheets in an overlapping manner, wherein each sheet overlaps a portion of each adjacent sheet;
a conveyor for advancing said overlapped discrete sheets;
a device for performing a process on an exposed area of each discrete sheet as each discrete sheet continues to move through said system; and a sensor in communication with said device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
8. A material processing system, comprising:
a first source of continuous material moving at a first speed;
a cutter for cutting said continuous material into a plurality of discrete sheets;
a conveyor for receiving said discrete sheets and transporting said discrete sheets in an overlapping manner, in which each discrete sheet overlaps a portion of an adjacent discrete sheet, said conveyor continuously moving at a second, slower speed;
a process device for applying a process to an exposed portion of each of said continuously moving discrete sheets; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
a first source of continuous material moving at a first speed;
a cutter for cutting said continuous material into a plurality of discrete sheets;
a conveyor for receiving said discrete sheets and transporting said discrete sheets in an overlapping manner, in which each discrete sheet overlaps a portion of an adjacent discrete sheet, said conveyor continuously moving at a second, slower speed;
a process device for applying a process to an exposed portion of each of said continuously moving discrete sheets; and a sensor in communication with said process device, said sensor adapted to detect a leading edge of each discrete sheet to trigger said process as said sheets move through said system.
9. The system of claim 1 wherein the process device is selected from a laser, a printer, a gluer, a labeler, and a coater.
10. The system of claim 7 wherein the device is selected from a laser, a printer, a gluer, a labeler and a coater.
11. The system of claim 8 wherein the process device is selected from a laser, a printer, a gluer, a labeler, and a coater.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48935695A | 1995-06-12 | 1995-06-12 | |
US08/489,356 | 1995-06-12 | ||
US54075795A | 1995-10-11 | 1995-10-11 | |
US08/540,757 | 1995-10-11 | ||
PCT/US1996/010150 WO1996041747A1 (en) | 1995-06-12 | 1996-06-11 | Processing discrete sheets of material |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2224266A1 CA2224266A1 (en) | 1996-12-27 |
CA2224266C true CA2224266C (en) | 2003-03-18 |
Family
ID=27049688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002224266A Expired - Lifetime CA2224266C (en) | 1995-06-12 | 1996-06-11 | Processing discrete sheets of material |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0833775A4 (en) |
JP (1) | JPH11507902A (en) |
AU (1) | AU707976B2 (en) |
BR (1) | BR9608760A (en) |
CA (1) | CA2224266C (en) |
MX (1) | MX9710047A (en) |
NZ (1) | NZ311427A (en) |
WO (1) | WO1996041747A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776831A (en) * | 1953-01-09 | 1957-01-08 | S & S Corrugated Paper Mach | Sheet inverting mechanism |
US3270630A (en) * | 1963-08-21 | 1966-09-06 | Bostitch Inc | Material handling apparatus |
US4601394A (en) * | 1984-05-07 | 1986-07-22 | Xerox Corporation | Zip code sorter for article labeling system |
US4805890A (en) * | 1987-08-06 | 1989-02-21 | Merrill David Martin | Sheet stacking machine |
EP0346577B1 (en) * | 1988-06-16 | 1991-11-27 | Ferag AG | Device for individually imprinting printing products arriving in a shingled formation |
EP0417620B1 (en) * | 1989-09-13 | 1995-06-21 | Ferag AG | Method and device for handling overlapping printed articles |
-
1996
- 1996-06-11 EP EP96921554A patent/EP0833775A4/en not_active Withdrawn
- 1996-06-11 JP JP9503287A patent/JPH11507902A/en active Pending
- 1996-06-11 WO PCT/US1996/010150 patent/WO1996041747A1/en not_active Application Discontinuation
- 1996-06-11 NZ NZ311427A patent/NZ311427A/en not_active IP Right Cessation
- 1996-06-11 BR BR9608760A patent/BR9608760A/en not_active Application Discontinuation
- 1996-06-11 CA CA002224266A patent/CA2224266C/en not_active Expired - Lifetime
- 1996-06-11 MX MX9710047A patent/MX9710047A/en unknown
- 1996-06-11 AU AU62756/96A patent/AU707976B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NZ311427A (en) | 1999-07-29 |
AU6275696A (en) | 1997-01-09 |
MX9710047A (en) | 1998-04-30 |
WO1996041747A1 (en) | 1996-12-27 |
BR9608760A (en) | 1999-07-06 |
AU707976B2 (en) | 1999-07-22 |
JPH11507902A (en) | 1999-07-13 |
EP0833775A1 (en) | 1998-04-08 |
EP0833775A4 (en) | 1998-09-23 |
CA2224266A1 (en) | 1996-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20160613 |