GB2095397A - Checking separation and spacing of sheet material - Google Patents
Checking separation and spacing of sheet material Download PDFInfo
- Publication number
- GB2095397A GB2095397A GB8134748A GB8134748A GB2095397A GB 2095397 A GB2095397 A GB 2095397A GB 8134748 A GB8134748 A GB 8134748A GB 8134748 A GB8134748 A GB 8134748A GB 2095397 A GB2095397 A GB 2095397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- probes
- sheet material
- microprocessor
- separation
- thickness
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 51
- 238000000926 separation method Methods 0.000 title claims abstract description 24
- 239000000523 sample Substances 0.000 claims abstract description 52
- 238000011156 evaluation Methods 0.000 claims abstract description 5
- 230000035945 sensitivity Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 28
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 230000003313 weakening effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
- G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
- G06K13/06—Guiding cards; Checking correct operation of card-conveying mechanisms
- G06K13/067—Checking presence, absence, correct position, or moving status of cards
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Controlling Sheets Or Webs (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Testing Of Coins (AREA)
- Electron Sources, Ion Sources (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
Abstract
In order to check the separation and the spacing in sheet material which is being fed to further processing machines, a pair of probes is used, whose analog measuring values are converted into digital values for evaluation by means of a microprocessor. The microprocessor controls automatically the sensitivity of the probes. The probes may be photosensitive, capacitive or magnetic. <IMAGE>
Description
SPECIFICATION
Process for checking separation and spacing in the feeding of sheet material
The practice of using photoelectric sensors or detectors is known in the separation of sheet material for further processing by means of machines, such as, for example, document sorting or mail sorting. Light barriers of this type are used to monitor the efficient transport of paper, whilst the presence and feeding of only one leaf or sheet is tested at a certain time.
The presence of a leaf or sheet is thereby normally checked by a transmitted light barrier, which is switched on for a certain period of time by means of appropriate control means, e.g. trip switches. To check separation, weakening of the light intensity of a further transmitted light barrier is measured. The switching threshold is thereby to be determined by means of a potentiometer. In the case of sheet material with intensive print, a switching threshold can usually no longer be set exactly with the conventional devices.
The present invention has been developed primarily, though not exclusively, with a view to create a process which avoids the latter disadvantage and which requires only one measuring device.
According to the invention there is provided process for checking the separation and the spacing in sheet material which is being fed to further processing machines, in which both the separation and the spacing are checked by means of a pair of probes whilst the permeability or thickness of the sheet material is measured; the result is converted in an analog-digital converter and fed to a microp rocessorforevaluation; the thickness of the sheet material passing the probes is measured and is stored in the microprocessor as a reference value for the following sheet material; and the microprocessor controls the synchronisation of the inquiry cadences of the probes.
A process and apparatus according to the invention will now be described in more detail, by way of example only with reference to the accompanying diagrammatic drawing.
The process for checking separation and spacing requires only one pair of probes 10, 11, which carries out monitoring of both separation and spacing. The pair of probes 10,11 is coupled to an analog-digital converter 21 and a microprocessor 22. The sensitivity of the probes 10,11 is matched automatically to the respective requirements by the microprocessor 22. Thus, for example, in the event of a change in the sheet material 30, the pair of probes 10,11 are adjusted to the thickness of the first sheet of a stack.
This matching can be done with sheet material 30 of any thickness, whilst the damping or weakening or change in thickness between the probes 10,11 is taken into account as a whole when a sheet is passing through. A check is therefore given even in the case of partially complete damping. Photoelectric sensors are used as probes 10,11. Capacitive or magnetic probes can also be provided to measure the thickness of the sheet material 30.
The probes 10,11 are preferably pulse-operated, whereby a higher degree of exploitation is achieved.
The microprocessor 22 is thereby used as a cadence transmitter, which controls the synchronisation of the inquiry cadences.
The described process can be enlarged upon simply by the addition of further pairs of probes, whereby no additional components are required apart from the probes. New addresses are to be stored only in the microprocessor. Such expansions permit, for example, the checking of undue displacement in the above-described parallel feeding of the sheet material.
It is possible, by adding a timer 41 coupled to the conveyor 40 of the sheet material 30, to achieve speed-independent synchronisation of several stations, by means of a microprocessor.
1. Process for checking the separation and the spacing in sheet material which is being fed to further processing machines, in which both the separation and the spacing are checked by means of a pair of probes whilst the permeability or thickness of the sheet material is measured; the result is converted in an analog-digital converter and fed to a microprocessor for evaluation; the thickness of the sheet material passing the probes is measured and is stored in the microprocessor as a reference value for the following sheet material; and the microprocessor controls the synchronisation of the inquiry cadences of the probes.
2. Process according to claim 1, in which photoelectric sensors are used as said probes.
3. Process according to claim 1, in which magnetic probes are used to measure the thickness of the sheet material.
4. Process according to claim 1, in which capacitive probes are used to measure the thickness of the sheet material.
5. Process according to any one of the preceding claims, in which parallel feeding of the sheet material is controllable by the addition of further probes.
6. Process according to any one of the preceding claims, in which further stations are checked by providing a respective pair of probes at each station.
7. Process according to claim 6, in which a timer coupled to a conveyor of the sheet material permits synchronisation of several stations by means of the microprocessor.
8. A process according to claim 1 and substantially as hereinbefore described with reference to, and as shown in the accompanying drawing.
9. Apparatus for checking the separation and the spacing in sheet material which is being fed to further processing machines and comprising:
a pair of probes arranged to check the separation and the spacing of sheet material, whilst the permeability or thickness of the material is measured;
an analog-digital converter arranged to convert the results determined by the pair or probes;
and a microprocessor arranged to be fed with the result converted by the analog-digital converter for evaluation so that the thickness of the sheet material passing the probes is measured and is stored in the
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1. Process for checking the separation and the spacing in sheet material which is being fed to further processing machines, in which both the separation and the spacing are checked by means of a pair of probes whilst the permeability or thickness of the sheet material is measured; the result is converted in an analog-digital converter and fed to a microprocessor for evaluation; the thickness of the sheet material passing the probes is measured and is stored in the microprocessor as a reference value for the following sheet material; and the microprocessor controls the synchronisation of the inquiry cadences of the probes.
2. Process according to claim 1, in which photoelectric sensors are used as said probes.
3. Process according to claim 1, in which magnetic probes are used to measure the thickness of the sheet material.
4. Process according to claim 1, in which capacitive probes are used to measure the thickness of the sheet material.
5. Process according to any one of the preceding claims, in which parallel feeding of the sheet material is controllable by the addition of further probes.
6. Process according to any one of the preceding claims, in which further stations are checked by providing a respective pair of probes at each station.
7. Process according to claim 6, in which a timer coupled to a conveyor of the sheet material permits synchronisation of several stations by means of the microprocessor.
8. A process according to claim 1 and substantially as hereinbefore described with reference to, and as shown in the accompanying drawing.
9. Apparatus for checking the separation and the spacing in sheet material which is being fed to further processing machines and comprising:
a pair of probes arranged to check the separation and the spacing of sheet material, whilst the permeability or thickness of the material is measured;
an analog-digital converter arranged to convert the results determined by the pair or probes;
and a microprocessor arranged to be fed with the result converted by the analog-digital converter for evaluation so that the thickness of the sheet material passing the probes is measured and is stored in the microprocessor as a reference value for the following sheet material, the microprocessor controlling the synchronisation of the enquiry cadences of the probes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813111952 DE3111952A1 (en) | 1981-03-23 | 1981-03-23 | METHOD FOR CONTROLLING THE SEPARATION AND DEFECTS IN THE FEEDING OF LEAF-SHAPED GOODS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2095397A true GB2095397A (en) | 1982-09-29 |
Family
ID=6128364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8134748A Withdrawn GB2095397A (en) | 1981-03-23 | 1981-11-18 | Checking separation and spacing of sheet material |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS57169887A (en) |
| BE (1) | BE891824A (en) |
| BR (1) | BR8107733A (en) |
| DE (1) | DE3111952A1 (en) |
| DK (1) | DK128982A (en) |
| FI (1) | FI813207L (en) |
| FR (1) | FR2502131A1 (en) |
| GB (1) | GB2095397A (en) |
| IT (1) | IT8124509A0 (en) |
| LU (1) | LU83624A1 (en) |
| NL (1) | NL8105000A (en) |
| NO (1) | NO814160L (en) |
| SE (1) | SE8201811L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000051061A1 (en) * | 1999-02-25 | 2000-08-31 | Wincor Nixdorf Gmbh & Co. Kg | Method and device for determining the position of a chip card in a card reader |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115553A (en) * | 1982-02-04 | 1983-09-07 | Watkiss Automation Ltd | Detecting apparatus and method |
| DE3230524C2 (en) * | 1982-08-17 | 1987-04-09 | Agfa-Gevaert Ag, 5090 Leverkusen | Device for detecting two or more superimposed film sheets |
| DE3730683A1 (en) * | 1987-09-12 | 1989-03-23 | Gremser Masch Franz | Process and device for monitoring articles |
| JPH0831159B2 (en) * | 1988-02-17 | 1996-03-27 | 沖電気工業株式会社 | Bill handling equipment |
| DE4022325C2 (en) * | 1990-07-13 | 2001-06-07 | Roland Man Druckmasch | Acoustic isolation control |
| DE4210957A1 (en) * | 1992-04-02 | 1993-10-07 | Heidelberger Druckmasch Ag | Method for monitoring the transport of printed products in a printing machine |
| DE4221578A1 (en) * | 1992-07-01 | 1994-01-05 | Heidelberger Druckmasch Ag | Device and method for sheet detection |
| DE112018006837T5 (en) * | 2018-01-11 | 2020-09-24 | Mitsubishi Electric Corporation | Image reader |
| JP6818303B2 (en) | 2018-09-12 | 2021-01-20 | 内山工業株式会社 | gasket |
-
1981
- 1981-03-23 DE DE19813111952 patent/DE3111952A1/en not_active Withdrawn
- 1981-09-09 LU LU83624A patent/LU83624A1/en unknown
- 1981-10-14 FI FI813207A patent/FI813207L/en not_active Application Discontinuation
- 1981-10-15 IT IT8124509A patent/IT8124509A0/en unknown
- 1981-11-04 NL NL8105000A patent/NL8105000A/en not_active Application Discontinuation
- 1981-11-18 GB GB8134748A patent/GB2095397A/en not_active Withdrawn
- 1981-11-27 BR BR8107733A patent/BR8107733A/en unknown
- 1981-12-04 NO NO814160A patent/NO814160L/en unknown
-
1982
- 1982-01-19 BE BE0/207084A patent/BE891824A/en unknown
- 1982-03-18 FR FR8204643A patent/FR2502131A1/en not_active Withdrawn
- 1982-03-19 JP JP57043056A patent/JPS57169887A/en active Pending
- 1982-03-22 DK DK128982A patent/DK128982A/en not_active Application Discontinuation
- 1982-03-22 SE SE8201811A patent/SE8201811L/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000051061A1 (en) * | 1999-02-25 | 2000-08-31 | Wincor Nixdorf Gmbh & Co. Kg | Method and device for determining the position of a chip card in a card reader |
| US6629637B1 (en) | 1999-02-25 | 2003-10-07 | Wincor Nixdorf Gmbh & Co. Kg | Method and device for determining the position of a chip card in a card reader |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8124509A0 (en) | 1981-10-15 |
| FR2502131A1 (en) | 1982-09-24 |
| SE8201811L (en) | 1982-09-24 |
| BE891824A (en) | 1982-05-17 |
| FI813207L (en) | 1982-09-24 |
| DE3111952A1 (en) | 1982-10-07 |
| NO814160L (en) | 1982-09-24 |
| JPS57169887A (en) | 1982-10-19 |
| BR8107733A (en) | 1983-04-12 |
| DK128982A (en) | 1982-09-24 |
| LU83624A1 (en) | 1982-01-21 |
| NL8105000A (en) | 1982-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |