CN105765633B - For examining the magnetizing assembly of safety element - Google Patents
For examining the magnetizing assembly of safety element Download PDFInfo
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- CN105765633B CN105765633B CN201480064308.0A CN201480064308A CN105765633B CN 105765633 B CN105765633 B CN 105765633B CN 201480064308 A CN201480064308 A CN 201480064308A CN 105765633 B CN105765633 B CN 105765633B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
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- General Physics & Mathematics (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to magnetization of the magnetisable safety element (31) in its inspection.Herein, two field regions (15,16) for having different magnetic field direction are provided along transmission area (20), wherein, the magnetic field strength positioned at the field regions (16) in downstream is less than the magnetic field strength along the first field regions of direction of transfer (15).By the present invention, using two magnet (11,12), their cooperatings generate two field regions (15,16).These magnet configurations are that their arctic and their South Pole are respectively relative to transmission area (20) and set opposite to each other by the first magnet (11) and the second magnet (12) for this purpose.
Description
Technical field
The present invention relates to a kind of magnetizing assemblys of inspection equipment for examining magnetisable safety element, a kind of corresponding inspection
Equipment, a kind of valuable document processing equipment and corresponding working method with corresponding inspection equipment.
Background technique
A kind of equipment for examining safety element as known to EP1770657A1, it includes that some coercive field strengths are different
Magnetic material.Herein, safety element meets with stronger first field regions first, and thus pacifies along the first direction of magnetization premagnetization
The highcoercivity material of full element and low coercivity magnetic material.Then, the second weaker field regions of safety element experience, and by
This magnetizes the low coercivity magnetic material of safety element again, therefore then along a direction different from the highcoercivity material
Magnetized.Then, measure and assess the magnetization of safety element, it is therefore an objective to there can be high coercive by the magnetic signal difference measured
The magnetic area of magnetic material and magnetic area with low coercivity magnetic material.
By the explanation of EP1770657A1, above-mentioned two field regions are inexpensively only generated by a magnet.Certainly, exist
This have the consequence that, keep magnetic field very uneven in EP1770657A1, thus valuable caused by swinging due to accidental transmission
The variation of file deHvery path causes to seriously affect to caused magnetization, therefore is difficult to distinguish magnetic material by magnetic signal.
In addition, the antiparallel magnetization of high and low coercivity magnetic material cannot be reached there.
A kind of equipment for examining safety element as known to DE102011106263A1, it works similar to EP1770657A1.
However two magnet are used respectively in order to generate the first and second magnetic fields herein.Thus reach high and low coercivity magnetic material
Antiparallel magnetization.Multiple identical magnet are but needed, this involves raising cost again.
Summary of the invention
Therefore the technical problem to be solved by the present invention is to provide a kind of simpler magnetization for examining magnetisable safety element
Device, it can the above two magnetic material in reliable discrimination.
Above-mentioned technical problem is addressed by technical theme described in independent claims.It says in the dependent claims
Bright preferred form of implementation.
Therefore it is designed as by magnetizing assembly of the invention, the first field regions and the first field regions is prepared as, made along transmission
Area is transmitted by the safety element of direction of transfer transmission by the first field regions, and wherein by have the first magnetic direction first
Then magnetic field strength is transmitted by the second field regions, and wherein by the second magnetic field strength for having the second magnetic direction,
In, the second magnetic direction is different from the first magnetic direction and the second magnetic field strength less than the first magnetic field strength.
The magnetizing assembly includes the first magnet and the second magnet, their cooperatings not only generate first but also generate
Second field regions.It is for this purpose to make the arctic of the arctic of the first magnet and the second magnet relative to biography by these magnet configurations
Send area opposite, and keep the South Pole of the first magnet same as the South Pole of the second magnet relative to transmission area it is opposite.
Each of the two magnet can for example be related to permanent magnet or electromagnet.Certainly preferably, first and second
Magnet relates separately to integrally-built permanent magnet, it is possible to realizing a kind of particularly simple structure.Especially, the first He
Second Magnet design is the permanent magnet of rectangular parallelepiped shape.
In order to which magnetic pole is opposite as described above, these magnet preferably opposite each other are to make
The the first magnet axis of one magnet extended from the arctic to the South Pole, the second magnet extended from the arctic to the South Pole with the second magnet
Axis is parallel to each other identical with direction, is especially in one 0 ° of angle.Herein, magnet axis for example with valuable document
Direction of transfer it is parallel or antiparallel.,
By above-mentioned magnetizing assembly, even if in the transmission area for allowing to there is certain transmission to swing, it also can be by two field regions systems
Standby is that remain to two kinds of ferromagnetic materials of safety element after its magnetization distinguishable from one another well.
Preferably, transmission area includes the central transmission plane extended along direction of transfer, its preferably linear extension, and preferably
Ground is in the center between magnet.It is particularly preferred that the transmission area is not only above central transmission plane herein but also at it
There is a limited height in lower section.The high perpendicular is defined in central transmission plane, and be respectively greater than or be equal to two magnet that
5%, the 10% of this distance or even 25%, or it is respectively greater than or is equal to 0.2mm, 0.5mm, 1mm or 2mm.Therefore, even if in
Valuable document is transmitted above or below the transmission plane of centre, and even if in the case where transmitting inside area has obvious transmission to swing,
Appropriate magnetization can be reached.
Preferably, the two Magnet designs are, so that (inside transmission area Anywhere) presses direction of transfer along transmission area
The safety element transmitted by two field regions, the first magnetic material that it has can be had less than the first magnetic field strength
And second of magnetic material that the first coercive field strength for being greater than the second magnetic field strength is magnetized to and it has can be had
Have less than the first magnetic field strength and be magnetized to again smaller than the second coercive field strength of the second magnetic field strength, makes the first magnetism
The direction of magnetization caused by material and the direction of magnetization caused by second of magnetic material are reversely with each other, are especially in one 155 ° extremely
205 ° of angle is preferably in one 170 ° to 190 ° of angle.The magnetized direction of second of magnetic material and the first
Deviate accurate anti-parallel direction (180 °), such as the transmission plane (side y perpendicular to safety element in the magnetized direction of magnetic material
To).
But it (can also passed towards the direction z relative to the magnetization of second of magnetic material of the magnetization of the first magnetic material
It in face is sent to extend perpendicular to direction of transfer) rotation in a small amount.It can be such case in safety element end, or first and second
It is also such when the magnet axis of magnet is without sufficiently accurately orientation parallel to each other.
Magnetic reversal described in magnetic material again can be extremely simple and be reliably assessed.
The two magnet are preferably shaped to linearly.Also, it is preferred that choosing, magnetizing assembly are designed as relative to transmission
Area or in which centre transmission plane have mirror symmetry.It is then preferred that choosing, two magnet thickness is identical and/or shape is consistent.It presses
Ideal mode is using two consistent magnet.
With this corresponding, the corresponding inspection equipment for examining magnetizable safety element includes the magnetic designed as described above
Makeup is set and Magnetic Sensor, magnetic sensor designs are, can detect at least one magnetic signal of the safety element along the transmission of transmission area,
This is to be issued by safety element when it is transmitted by being located at the detection zone in the first and second field regions downstreams along direction of transfer.
Equipment is examined to preferably include the transport mechanism along transmission area by direction of transfer transmission safety element.
Preferably, examining equipment further includes at least one assessment device, it is designed as, can assess measure it is related with small
Being greater than the first magnetic material of the safety element of the first coercive field strength of the second magnetic field strength in the first magnetic field strength is
The magnetic signal of no presence and/or position, and can assess measure it is related with less than the first magnetic field strength and again smaller than second
Second of magnetic material of safety element of second coercive field strength of magnetic field strength whether there is and/or the magnetic signal of position.
Assessment device can be for example designed as, and can assess the related safety element measured has the first but do not have the of second magnetic material
One magnetic area whether there is and/or the magnetic signal of position, and/or can assess the related safety element measured and have second but do not have
Second magnetic area of the first magnetic material whether there is and/or the magnetic signal of position.
Preferably, the assessment device of the magnetic signal of the related safety element magnetic code measured including assessment, magnetic code
It is by the first magnetic material and/or second of magnetic material, particularly by their sequences and/or row on safety element
What column were formed.
In addition to this, as being described in more detail in DE102011106263A1, in addition to above-mentioned Magnetic Sensor also
There are another Magnetic Sensors, it is designed to detection along at least one magnetic signal of the safety element of transmission area transmission, this is
What the second detection zone by being located at the first and second field regions downstreams along direction of transfer issued.This second detection zone can need
When apply third magnetic field.Assessment device is preferably designed to, can at least one second magnetic signal ining conjunction with assessment it is related first safely
Part has the first but does not have first magnetic area of second of magnetic material, and/or safety element to have second but without the first
Second magnetic area of magnetic material and when necessary safety element have the first and have the third magnetic area of second of magnetic material
It whether there is and/or at least one first magnetic signal of position.
It include that inspection equipment as explained above by valuable document processing equipment of the invention.Valuable document processing
The equipment that valuable document more particularly, to can be paid and/or pay to equipment, or for handling the equipment for having part document, such as with
In the bank note processing machine for examining banknote.
For magnetizing the first magnetic material with the first coercive field strength and having than the first coercive field
In a kind of corresponding method of the safety element of second of magnetic material of the second small coercive field strength of intensity, provide above-mentioned
Magnetizing assembly examines equipment, wherein above-mentioned first magnetic field strength of the first field regions is greater than the first and second of magnetic material
Coercive field strength, and the second magnetic field strength of the second field regions is less than the first coercive field strength and greater than the of magnetic material
Two coercive field strengths.Then safety element is transmitted along transmitting path by direction of transfer, and two kinds of magnetic materials is made to meet with the in succession
One and second field regions.
Based on above-mentioned magnetic field strength, magnetize two kinds of magnetic materials here by the first field regions, and pass through the second magnetic
Place only magnetizes second of magnetic material again, and without magnetizing the first magnetic material again, it keeps passing through the first field regions
Caused by magnetize.
A kind of magnetizing assembly is preferably used herein, both magnetic materials are magnetized to by it, make the first magnetic material
The direction of magnetization caused by material and the direction of magnetization caused by second of magnetic material are reversely with each other, are especially in one 155 ° extremely
205 ° of angle is preferably in one 170 ° to 190 ° of angle.
First and second magnet are preferably configured to, along direction of transfer observe, the second field regions that along sender
The position for dropping below low coercivity magnetic material coercive field strength herein to the magnetic field strength of orientation, makes perpendicular to transmission
The magnetic field strength of plane orientation is small to negligible compared with the magnetic field strength oriented in the position along direction of transfer.Especially
Make in the position perpendicular to the magnetic field strength of transport plane orientation, it is excellent less than the 20% of the magnetic field strength oriented along direction of transfer
Selection of land be less than its 10%.As a result, the second field regions this position magnetic direction, and at the same time caused by low coercivity material
Material magnetization, it is accurate parallel or anti-parallel orient with direction of transfer.
Especially, the magnetic field strength in the first field regions along direction of transfer orientation is possessed most along direction of transfer observation
Big value, than maximum value greatly at least 50% possessed by the magnetic field strength in the first field regions perpendicular to transmission plane orientation, preferably
Greatly at least 2 times of ground.Thus reach the stronger magnetization along direction of transfer orientation of highcoercivity material, it and low coercivity material
The direction of magnetization of material is opposite.
In the corresponding method of inspection, detects at least one and believed by the magnetic that magnetized safety element issues as described
Number, and it is preferably as already explained above as, can assess the first magnetic material of related safety element and/or first safely
Second of magnetic material of part whether there is and/or position.
Detailed description of the invention
By following description of a preferred embodiment and other embodiments and the attached drawing schematically illustrated is combined, learns the present invention
Other feature and advantage, in which:
Fig. 1 is schematically illustrated with the valuable document processing equipment for examining equipment and magnetizing assembly；
Fig. 2 indicates the method for inspection；
Fig. 3 is highly diagrammatically indicated by the magnetic line of force of the magnetizing assembly generation by Fig. 1；
Fig. 4 indicates the magnetic field strength Hx along direction of transfer by generating by the magnetizing assembly of Fig. 1, and thus magnetizing assembly
The magnetic field strength Hy perpendicular to transmission plane generated, when description position is y=-1mm (Fig. 4 a) and y=-2.5mm (Fig. 4 b) respectively
Along the situation of direction of transfer；And
Fig. 5 indicates the magnetic field strength Hx along direction of transfer generated by magnetizing assembly, describes and extends along perpendicular to transmission plane
Axis situation.
Specific embodiment
Fig. 1 schematically illustrates part by valuable document processing equipment 101 of the invention.It includes inspection equipment 100 and must again
Other (not having expression in figure) components when wanting, such as valuable document output and input device and operating parts.
Examine equipment 100 includes magnetizing assembly 10 and other components again.Examine equipment 100 for verifying valuable document 30
Magnetizable safety element 31.In this example, safety element 31 has the first to have the (high to rectify of the first coercive field strength
It is stupid) (low coercive) magnetic material of magnetic material and second with the second lower coercive field strength.These materials are configured to,
So that the highcoercivity material area h of safety element 31 there was only highcoercivity material, without low coercivity magnetic material, makes safety
The low coercivity magnetic material area l of element 31 only has low coercivity magnetic material, without highcoercivity material, and makes safe member
The combined magnetic material area k of part 31 have on up to two kinds of magnetic materials.But alternatively, this safety element 31 can also not have
There is a magnetic material area of combination, but only one or multiple high and low coercivity areas, or can also there was only these magnetic materials
One of material.Existing magnetic material area h or l or h, l or h, k, l for example constitute a kind of magnetic code of safety element.
Valuable document 30 can be with safety element 31 together, by 17 edge of transmission device for being 10 component part of magnetizing assembly
Area 20 is transmitted to transmit.Transmission device 17 for example has a plurality of conveyer belt and/or the multiple transmission rolling that valuable document is transmitted for belt
Wheel.Two tops and three lower conveyer belts are indicated as example in Fig. 1, are clamped between them and are transmitted valuable document 30.
Also the transmission area 20 extended above and below central transmission plane 21 includes a central transmission plane 21, has safety element 31
Valuable document 30 in ideal conditions along direction of transfer T transmit.Certainly, valuable document 30 also has together with safety element 31
It may be transmitted above and below central transmission plane 21 along direction of transfer T.It should reach as small as possible between magnet 11,12
Spacing, in the case that however conveyer belt still has to walk between two magnet 11,12, then for example from position
Reason, it is necessary to transmit valuable document above or below central transmission plane 21 for meeting.As long as transmission is in transmission area 20
Portion carries out, and deviates to have no effect on along central transmission plane 20 in transmission and examines safety element 31.
Before examining safety element 31, it is magnetized to by the magnetizing assembly 10 for herein including magnet 11 and magnet 12,
Keep the direction of magnetization of two kinds of magnetic materials already mentioned before opposite each other.For this purpose, magnetizing assembly 10 is along transmission area 20 preparation the
One field regions and the second field regions for being located at the first field regions downstream along direction of transfer T, they are prepared as, and make along transmission area 20
By the safety element 31 that direction of transfer T is transmitted, by there is two kinds of magnetic of ratio along the first magnetic direction first in the first field regions
Property the first big magnetic field strength of material coercive field strength, then in the second field regions by having along another the second magnetic field side
To the second magnetic field strength, it is greater than the coercive field strength of low coercivity magnetic material, however is less than highcoercivity material
Coercive field strength.Therefore, when transmitting along transmission area 20 by direction of transfer T, magnetize two kinds of magnetism in the first field regions first
Material then only (reversed) magnetizes low coercivity magnetic material in the second field regions again, and keeps highcoercivity material by the
Magnetize caused by one field regions.Both magnetic materials magnetize along the opposite direction of magnetization in this case.
After this, by the first Magnetic Sensor row 40 and 50 detection of the second Magnetic Sensor row by magnetized peace by this method
The magnetic signal that full element 31 issues, the first Magnetic Sensor row 40 preferably include multiple sensors for detecting with differentiating place
Element 41, and the second Magnetic Sensor row 50 also preferably includes multiple sensor elements 51 for detecting with differentiating place.
It, will be by produced by the magnet 52 that can be oriented as magnet 11,12 completely with during 50 detection of the second Magnetic Sensor row
Another magnetic fields on safety element 31.Alternatively, another described magnetic field can also be by another magnet
It generates, such as horseshoe magnet.Alternatively, detection magnetic signal can also arrange 40,50 with sensor and implement, without another
A magnetic field.It is different from sensor row 40,50, the sensor for not differentiating place also can be used, magnetic material area h, k, l must at this time
Must sequentially it pass through by sensor.
Magnetic signal through so detecting then is assessed by assessment device 60, this relates to whether that there are above-mentioned magnetic material areas
H, k, l and their sequence and layout, it is therefore an objective to examine the magnetic code of safety element 31.
Therefore by the method for Fig. 2 magnetisable safety element 31 of inspection correspondingly indicated, applicable magnetization dress is provided first
It sets 10 (step S1) and transmits safety element 31 (step S2) by direction of transfer T along transmission area 20, thus as already explained above
As magnetize both magnetic materials.Then, the magnetic signal that 40,50 detections are issued by safety element 31 is arranged by sensor
It (step S4) and is assessed by assessment device 60.
By the present invention, the two field regions already described above (only) are generated by two magnet 11,12.For this purpose,
The two magnet configurations are to keep their arctic N opposite and at the same time that their South Pole S is same relative to transmission area 20
Sample is opposite relative to transmission area 20.By using two configured in this way magnet to generate two field regions, be used only one
A magnet generates two field regions and compares, and be able to more can may be used high with this corresponding with low coercivity magnetic material area antiparallel magnetization
Safety element 31 is examined by ground.
Two magnet 11,12 unanimously design in the present embodiment, they especially have identical shape and same thickness (surplus
Residual magnetism).In addition, their magnet axis 13 and 14 is parallel to each other and is aligned with direction of transfer T.Magnet 11,12 is arranged as
There is the spacing of 5mm each other, that is to say, that gap visible in Fig. 1 is 5mm wide and in the x-direction everywhere between magnet
Length be 10mm.It is 1.4 teslas that magnet 11,12, which for example has remanent magnetization,.In order to which conveyer belt can be passed through in two sides, magnet
11,12 it also may be arranged to have bigger spacing (> 5mm) each other.
The magnetic line of force by magnetic field produced by this magnetizing assembly 10 is schematically illustrated in Fig. 3.Herein, Fig. 3 is indicated
One intersects in the center of magnet 11,12 with them with the magnetic line of force in the x and the parallel plane of y-axis in Fig. 1, this plane.
Accordingly, the accurately center between magnet is seen in the y-direction, that is, in central transmission plane 21, and in the x-direction
It sees between pole N, S of magnet, there are the magnetic fields (the first field regions 15 of part) exactly along direction of transfer T orientation.Along biography
Direction is sent to see that still in central transmission plane 21, there are one to have compared with small magnetic field downstream and behind two magnet 11,12
The magnetic field (the second field regions 16 of part) of intensity, it is just oriented against direction of transfer T.
Balanced configuration based on magnet, center of the y-component in magnetic field between magnet 11,12 is just zero.Therefore preferably
Ground safety element 31 can be transmitted accurately along central transmission plane 21, it is therefore an objective to can reach accurately anti-in 31 plane of safety element
Two kinds of magnetic materials of parallel magnetization.
However, even when safety element 31 is not accurately along central transmission plane 21, but only on central transmission plane 21
In (biggish) the transmission area 20 stretched in one limited height of side and lower section when transmission, magnetic material still can be reversely with each other
Magnetization.
In this respect, curve 1003 in figs 4 a and 4b indicates the magnetic field strength for (corresponding to direction of transfer T) in the x-direction
Hx, and curve 1005 indicates the magnetic field strength Hy along the direction y normal thereto.This two curves indicate that respective magnetic field strength is made
For the function of x position, Fig. 4 a that is, is passed in center above lower magnet 12 (it is located at y=0) when y location is -1mm
Send 21 lower section 1.5mm of face and below upper magnet 11 when 4mm, and Fig. 4 b be above lower magnet 12 when y location be-
When 2.5mm, that is, just in central transmission plane 21.In addition, the coercive for the low coercivity magnetic material indicated in figure as example
Magnetic field strength HKLFor the 30kA/m and coercive field strength H of highcoercivity materialKHFor 275kA/m.Representative value is for example
It can be HKL=20kA/m and HKH=300NkA/m.
It can be seen from Fig. 4 a in the y-direction, i.e. perpendicularly to the magnetic field strength (curve 1005) of direction of transfer T, in two sides
Ratio (curve 1006) in one-sided configuration magnet is much smaller when distributed magnet.The side x is parallel in order to reach highcoercivity material
To accurate orientation, can further decrease it is reaching when x position is M, act on magnetic field strength Hy's on safety element 31
Maximum value.This can take following measures to realize, even if also the transmission plane of valuable document is further towards the side of central transmission plane 21
To movement.Example in Fig. 4 b indicates, when valuable document above lower magnet 12 2.5mm (replacing 1mm), that is, just in
When entreating transmission in transmission plane 21 the case where magnetic field strength.Based on axisymmetrically configuring magnetic relative to transmission plane 21 in this case
Iron 11,12, so zero is equal to for the magnetic field strength Hy in the y-direction of all x positions in this case, referring to fig. 4 in b
Curve 1005.
In addition, in point x1, magnetic field strength Hx (curve 1003) drops below low rectify herein in two sides distributed magnet
The coercive field strength H of coercivity materialKL, magnetic field strength Hy is also almost nil in y=-1mm, referring to fig. 4 the curve in a
1005.Magnetize for caused by low coercivity magnetic material and play a decisive role, has what direction in the magnetic field this x position x1.
Because of Hy < < Hx, simultaneously thus also magnetize caused by low coercivity magnetic material in the magnetic field of point x1, it is substantially anti-with the direction x
Parallel orientation, that is to say, that opposite with the direction of magnetization of highcoercivity material.
Therefore by above-mentioned magnetic field, when safety element is the only 1mm above lower magnet 12 in y location, that is, in center
When 21 lower section 1.5mm of transmission plane is transmitted along direction of transfer T, the reversed (along or against biography of two kinds of magnetic materials also can achieve
Send direction T) magnetization, that is to say, that both extended above central transmission plane 21 with or lower section even if safety element 31 at one
Transmission area 20 inside when transmitting, magnetizing assembly 10 and examine equipment 10 that can also work normally.
In comparison, curve 1004 and 1006 is indicated in the same figure, they depict and by EP1770657A2
The corresponding magnetic field strength Hx or Hy of the magnetizing assembly of discussion, this magnetizing assembly only have lower magnet 12 (have in the present embodiment
In identical magnet data).As can be seen that the Hy maximum value of magnetic field strength in the y-direction occurred when x position is M, in the present invention
In (curve 1005) it is more much smaller than (curve 1006) in the prior art always.In the case where y=-1mm, in unilateral magnetic
Magnetic field strength Hy when iron (in point M) in the y-direction is even bigger many (big twice or more) than magnetic field strength Hx in the x-direction, ginseng
The curve 1004 and 1006 in Fig. 4 a is seen, as a result, highcoercivity material is caused very strongly to rotate earth magnetism towards the direction y
Change.In addition, in the y-direction magnetic field strength Hy (curve 1006) in point x2, at this time in the case where unilateral magnet magnetizing assembly along the side x
To magnetic field strength Hx (curve 1004) drop below the coercive field strength H of coercivity magnetic materialKL, hence it is evident that it is greater than zero, closely
Like big as Hx.Therefore it is equally strongly rotated towards the direction y in the magnetic field point x2, that is to say, that tilted relative to direction of transfer T
It orients, referring to fig. 4 a and 4b.Then low coercivity magnetic material tilts magnetized also relative to direction of transfer T, however complete along one
The full direction (reversed x-component) different from highcoercivity material magnetizes.Therefore magnetizing assembly (the unilateral magnetic of the prior art is pressed
Iron) two kinds of magnetic material approximation magnetic reversals cannot be reached.This not only with a distance from single magnet 12 be 1mm when be in this way,
And distance it is bigger and smaller when be also such.
In addition to this, very big maximum magnetic flux compared with prior art is provided in the x-direction by magnetizing assembly 10 of the invention
Field intensity, so also magnetizable has the magnetic material of especially big coercive field strength.This is not only 1mm from lower magnet 12 on edge
Distance, that is, when 1.5mm is transmitted below central transmission plane 21 is such case, a referring to fig. 4, and other apart from when
It is also such case, b referring to fig. 4.
It is related to this, indicated in Fig. 5 maximum magnetic field strength Hx in the x-direction in the y-direction with a distance from lower magnet 12
Relationship, by Fig. 4 a and 4b when x position be 30mm when occur maximum magnetic field strength Hx between magnetic pole.As shown in this figure, by pressing
The present invention is variation (curve using the maximum magnetic field strength Hx that the magnetizing assembly 10 of two opposed magnet 11,12 provides
1002), in transmission obviously hardly above and below central transmission plane 21.In contrast, only unilateral by the prior art
There is the magnetizing assembly of magnet, with increasing with a distance from (lower part) single magnet, maximum magnetic field strength Hx decline (song strongly
Line 1001), so that being only possible to magnetize in the case where small with a distance from magnet a kind of has relatively high coercive field strength
Magnetic material.However from magnet 12 it is very small with a distance from can to by it transmit valuable document bring interference transmit high wind
Danger.Furthermore magnetize safety element 31 by the magnetizing assembly of the prior art, be easy that valuable document 30 frequently occurs (towards the direction y)
Transmission is swung.
By these figures it is found that preferred transmission plane is located at the center between two magnet 11,12, safety element is not transmitted
Swingingly transmitted along it.Therefore Hy is very small herein.But preferred transmission plane can also be located at one of two magnet
Near, in order that being that transport mechanism especially conveyer belt is left room in transmission plane side.(replace and transmit by delivery roller
Band) transmission when, valuable document can transmit in central transmission plane.
Claims (19)
1. a kind of magnetizing assembly (10) of the inspection equipment (100) for the safety element (31) for examining magnetizable, comprising:
It transmitting area (20), safety element (31) can be transmitted along transmission area (20) by direction of transfer (T),
There is the first magnet (11) of north and south poles, and has the second magnet (12) of north and south poles, herein first and
Two magnet (11,12) alignment,
- the first field regions (15), it is prepared as that the safety element (31) along transmission area (20) transmission is made to pass through the first field regions
(15) transmission and wherein by the first magnetic field strength for having the first magnetic direction, and
It is located at second field regions (16) in the first field regions (15) downstream along direction of transfer (T), it is prepared as making along transmission area
(20) safety element (31) transmitted is transmitted by the second field regions (16) and wherein by have the second magnetic direction second
Magnetic field strength, the second magnetic direction is different from the first magnetic direction herein and the second magnetic field strength is strong less than the first magnetic field
Degree,
It is characterized in that: their arctic and their South Pole are respectively relative to transmit by the first magnet (11) and the second magnet (12)
Area (20) is set opposite to each other, makes the first and second magnet (11,12) cooperating, is not only generated the first field regions (15) but also is produced
Raw second field regions (16), first and second magnet are configured to linearly.
2. magnetizing assembly (10) described in accordance with the claim 1, it is characterized in that, transmission area (20) includes prolonging along direction of transfer (T)
The central transmission plane (21) stretched, and the height that is defined with one perpendicular to central transmission plane (21) central transmission plane (21) herein
Above and below extend, wherein the height be respectively greater than or be equal to the first magnet (11) with a distance from the second magnet (12)
5%, 10% or 25%, or it is respectively greater than or is equal to 0.2mm, 0.5mm, 1mm or 2mm.
3. magnetizing assembly (10) according to claim 1 or 2, it is characterized in that, first and second magnet (11,12) sets
It is calculated as, so that passing through the safety element (31) that two field regions (15,16) are transmitted by direction of transfer along transmission area (20), it has
The first magnetic material can by have less than the first magnetic field strength and be greater than the second magnetic field strength the first coercive force field strength
Degree magnetization and second of magnetic material that it has can be had less than the first magnetic field strength and again smaller than the second magnetic field
Second coercive field strength of intensity magnetizes, so that the direction of magnetization caused by the first magnetic material is made with second of magnetic material
At the direction of magnetization it is reversely with each other.
4. magnetizing assembly (10) according to claim 1 or 2, it is characterized in that, the first magnet (11) and the second magnet (12)
Be configured to, make the first magnet (11) the first magnet axis (13) extended from the arctic to the South Pole and the second magnet (12) from north
The second magnet axis (14) that pole extends to the South Pole is parallel to each other.
5. magnetizing assembly (10) according to claim 4, it is characterized in that, the first magnet (11) and the second magnet (12) configuration
For, make the first magnet (11) the first magnet axis (13) extended from the arctic to the South Pole and the second magnet (12) from the arctic to
The second magnet axis (14) that the South Pole extends is parallel or antiparallel with direction of transfer (T).
6. magnetizing assembly (10) according to claim 1 or 2, it is characterized in that, the first and second magnet (11,12) configuration
To be observed along direction of transfer (T), that in the second field regions (16) exists along the magnetic field strength (Hx) of direction of transfer (T) orientation
Here low coercivity magnetic material coercive field strength (H is dropped belowKL) position (x1), make perpendicular to transport plane orient
Magnetic field strength (Hy) is small to negligible compared with the magnetic field strength (Hx) that (x1) in the position is oriented along direction of transfer (T).
7. magnetizing assembly (10) according to claim 6, it is characterized in that, the first and second magnet (11,12) are configured to, edge
Direction of transfer (T) observation, the second field regions (16) that along direction of transfer (T) orientation magnetic field strength (Hx) herein under
Fall below low coercivity magnetic material coercive field strength (HKL) position (x1), make perpendicular to transport plane orient magnetic field it is strong
(Hy) is spent to be less than along the 20% of direction of transfer (T) magnetic field strength (Hx) oriented.
8. magnetizing assembly (10) according to claim 1 or 2, it is characterized in that, the first and second magnet (11,12) configuration
To make the maximum value having in the first field regions (15) along the magnetic field strength (Hx) of direction of transfer (T) orientation, than in the first magnetic
Maximum value greatly at least 50% possessed by magnetic field strength (Hy) in place (15) perpendicular to transmission plane orientation.
9. magnetizing assembly (10) according to claim 8, it is characterized in that, the first and second magnet (11,12) are configured to, and are made
The maximum value having in the first field regions (15) along the magnetic field strength (Hx) of direction of transfer (T) orientation, than in the first field regions
(15) greatly at least 2 times of maximum value possessed by the magnetic field strength (Hy) in perpendicular to transmission plane orientation.
10. magnetizing assembly according to claim 1 or 2, it is characterized in that, not only the first magnet (11) but also the second magnet
It (12) is all integrally-built permanent magnet.
11. a kind of inspection equipment (100) for the safety element for examining magnetizable, it is characterised in that according to all claims in forefront
One of described in magnetizing assembly (10) and Magnetic Sensor (40), Magnetic Sensor (40) is designed as, and can at least detect along transmission area
(20) magnetic signal of the safety element (31) transmitted, this is at it by safety element (31) by being located at the along direction of transfer (T)
What the detection zone in one field regions (15) and the second field regions (16) downstream issued when transmitting.
12. examining equipment (100) according to claim 11, it is characterised in that assessment device (60), assessment device design
For that can assess measuring about whether there is the first coercive force having less than the first magnetic field strength and greater than the second magnetic field strength
The magnetic signal of the first magnetic material of the safety element (31) of field intensity, and/or can assess measuring about whether there is tool
There is the magnetic of second of magnetic material of the safety element (31) of the second coercive field strength less than first and second magnetic field strength
Signal, and/or assessment device are designed as, can assess the related safety element (31) that measures pass through the first magnetic material and/or
The magnetic signal for the magnetic code that second of magnetic material is formed.
13. according to inspection equipment described in claim 11 or 12, it is characterised in that transport mechanism (17), for along transmission area
(20) safety element (31) are transmitted by direction of transfer (T).
14. a kind of valuable document processing equipment (101), which is characterized in that the valuable document processing equipment has according to right
It is required that inspection equipment (100) described in any one of 11 to 13.
15. valuable document processing equipment (101) according to claim 14, which is characterized in that at the valuable document
Reason equipment (101) is equipment for paying and/or paying valuable document or for handling the equipment for having part document.
16. one kind includes having the first coercive field strength for magnetizing the method for safety element (31), safety element (31)
The first magnetic material and second of magnetic material with second coercive field strength smaller than the first coercive field strength,
It is characterized in that the following steps:
(S1) is provided according to magnetizing assembly described in one of claims 1 to 10 (10) or according to one of claim 11 to 13 institute
State the inspection equipment (100) with this magnetizing assembly (10), wherein the first magnetic field strength be greater than the first coercive field strength and
It is greater than the second coercive field strength greater than the second coercive field strength and the second magnetic field strength and less than the first coercive force field strength
Degree, and
It transmits (S2) described safety element (31), pass through the first field regions (15) by direction of transfer (T) along transmission area (20) and connects
Pass through the second field regions (16).
It, can be by along transmission area 17. according to the method for claim 16, it is characterized in that, magnetizing assembly (10) is designed as
(20) safety element (31) are transmitted and magnetizes the first magnetic material and second of magnetic material, so that the first magnetic material
Caused by the direction of magnetization and the direction of magnetization caused by second of magnetic material it is reversely with each other.
18. a kind of method for the safety element (31) for examining magnetizable, it is characterised in that the following steps:
Magnetize (S1, S2) safety element according to method described in claim 16 or 17,
Detect (S3) at least one by magnetized safety element (31) issue magnetic signal.
19. according to the method for claim 18, it is characterised in that following step:
It assesses measured by (S4) about whether there are the first magnetic material of safety element (31) and/or safety elements (31)
Second of magnetic material magnetic signal, and/or the measured related safety element (31) of assessment passes through the first magnetic material
And/or the magnetic signal of the magnetic code formed by second of magnetic material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013021969.8 | 2013-12-20 | ||
| DE102013021969.8A DE102013021969A1 (en) | 2013-12-20 | 2013-12-20 | Magnetization device for testing a security element |
| PCT/EP2014/003337 WO2015090545A1 (en) | 2013-12-20 | 2014-12-12 | Magnetization device for testing a security element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105765633A CN105765633A (en) | 2016-07-13 |
| CN105765633B true CN105765633B (en) | 2019-04-02 |
Family
ID=52232127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480064308.0A Active CN105765633B (en) | 2013-12-20 | 2014-12-12 | For examining the magnetizing assembly of safety element |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3084731B1 (en) |
| CN (1) | CN105765633B (en) |
| DE (1) | DE102013021969A1 (en) |
| PT (1) | PT3084731T (en) |
| WO (1) | WO2015090545A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015002219A1 (en) | 2015-02-24 | 2016-08-25 | Meas Deutschland Gmbh | Magnetic biasing magnet and measuring device for measuring magnetic properties of the surroundings of the measuring device and methods for biasing magnetic materials on a measuring object |
| DE102018008519A1 (en) * | 2018-10-30 | 2020-04-30 | Giesecke+Devrient Currency Technology Gmbh | Magnetic verification of documents of value |
| DE102019200361A1 (en) | 2019-01-14 | 2020-07-16 | TE Connectivity Sensors Germany GmbH | Magnetizing device with reduced stray field |
| CN110738785A (en) * | 2019-09-19 | 2020-01-31 | 中钞特种防伪科技有限公司 | Detection method and device for magnetic anti-counterfeiting element |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2834287C2 (en) * | 1978-08-04 | 1984-03-22 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | Device for checking the authenticity of ferromagnetic security threads in value prints |
| DE102004049999A1 (en) * | 2004-10-14 | 2006-04-20 | Giesecke & Devrient Gmbh | security element |
| GB0519971D0 (en) | 2005-09-30 | 2005-11-09 | Rue De Int Ltd | Method and apparatus for detecting a magnetic feature on an article |
| US7538546B2 (en) * | 2006-11-10 | 2009-05-26 | Infinitum Solutions, Inc. | In-plane magnetic field generation and testing of magnetic sensor |
| DE102008061507A1 (en) * | 2008-12-10 | 2010-06-17 | Giesecke & Devrient Gmbh | Magnetic sensor for checking value documents |
| EP2580745B1 (en) | 2010-06-09 | 2017-08-16 | Giesecke+Devrient Currency Technology GmbH | Method and apparatus for checking value documents |
| DE102011109949A1 (en) * | 2011-08-10 | 2013-02-14 | Giesecke & Devrient Gmbh | Test arrangement for value document testing |
| CN105051561B (en) * | 2013-04-09 | 2018-01-16 | 光荣株式会社 | Magnetic characteristic discriminating gear and magnetic characteristic method of discrimination |
-
2013
- 2013-12-20 DE DE102013021969.8A patent/DE102013021969A1/en not_active Withdrawn
-
2014
- 2014-12-12 EP EP14820744.2A patent/EP3084731B1/en active Active
- 2014-12-12 WO PCT/EP2014/003337 patent/WO2015090545A1/en active Application Filing
- 2014-12-12 CN CN201480064308.0A patent/CN105765633B/en active Active
- 2014-12-12 PT PT148207442T patent/PT3084731T/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN105765633A (en) | 2016-07-13 |
| EP3084731B1 (en) | 2023-04-26 |
| PT3084731T (en) | 2023-06-07 |
| WO2015090545A1 (en) | 2015-06-25 |
| EP3084731A1 (en) | 2016-10-26 |
| DE102013021969A1 (en) | 2015-06-25 |
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