CN220548818U - Magnetic orientation device and printing equipment - Google Patents

Abstract

The application discloses a magnetic orientation device and printing equipment. The magnetic orientation device consists of at least two magnetic bodies; at least two magnetic bodies are arranged around a reference line extending along a first direction, and the at least two magnetic bodies are symmetrical about the center of the reference line; in the use state of the magnetic orientation device, the magnetic axes of at least two magnetic bodies are parallel to the main surface of the printing substrate. The application can form the composite magnetic field of the printing anti-counterfeiting pattern through simple combination of the magnetic bodies.

Description

Magnetic orientation device and printing equipment

Technical Field

The application relates to the technical field of magnetic orientation, in particular to a magnetic orientation device and printing equipment.

Background

Today's anti-counterfeiting technology plays a very important role, and various security documents, currencies and rare goods are visible on their impressions. The market has the technical requirements of easy identification and difficult imitation on anti-counterfeiting. The Flex company firstly develops anti-counterfeiting optically variable pigment, and discloses a method for controlling the directional arrangement of magnetic fragments to generate patterns under the action of a magnetic field, which has very strong anti-counterfeiting effect, is easy to identify and is difficult to imitate.

However, the method for printing the anti-counterfeiting pattern by using the magnetic field is not more, the aesthetic property is not enough, the increasing market demands are difficult to keep up, and the magnetic orientation device for forming the magnetic field comprises a plurality of types of magnets, and has the advantages of complex structure, high cost and monotonous effect.

Disclosure of Invention

The application provides at least one magnetic orientation device and printing equipment, and the composite magnetic field of the printed anti-counterfeiting pattern can be formed through simple combination of magnetic bodies.

A first aspect of the present application provides a magnetic orienting device consisting of at least two magnetic bodies;

at least two magnetic bodies are arranged around a reference line extending along a first direction, and the at least two magnetic bodies are symmetrical about the center of the reference line;

in the use state of the magnetic orientation device, the magnetic axes of at least two magnetic bodies are parallel to the main surface of the printing substrate.

In an embodiment, the axes of the at least two magnetic bodies or extensions of the axes intersect the reference line.

In an embodiment, the axes of the magnetic bodies are perpendicular to the neutral plane of the magnetic bodies, and the neutral planes of at least two magnetic bodies intersect the reference line.

In one embodiment, the magnetic body is an elliptic magnet and the axis is the long axis of the elliptic magnet.

In one embodiment, the number of the magnetic bodies is 6, the 6 magnetic bodies are arranged in a central symmetry way with the reference line as the center, and the included angle between the axes of two adjacent magnetic bodies is 60 degrees; or alternatively, the first and second heat exchangers may be,

the number of the magnetic bodies is 8, the 8 magnetic bodies are arranged in a central symmetry way by taking a reference line as a center, and the included angle between the axes of two adjacent magnetic bodies is 45 degrees; or alternatively, the first and second heat exchangers may be,

the number of the magnetic bodies is 12, the 12 magnetic bodies are arranged in a central symmetry way with the reference line as the center, and the included angle between the axes of two adjacent magnetic bodies is 30 degrees; or alternatively, the first and second heat exchangers may be,

the number of the magnetic bodies is 3, the 3 magnetic bodies are arranged in a central symmetry way with the reference line as the center, and the included angle between the axes of two adjacent magnetic bodies is 120 degrees.

In an embodiment, at least two magnetic bodies form a cyclone-shaped arrangement.

In one embodiment, two adjacent magnetic bodies are opposite in opposite polarity or same in polarity, or,

at least two magnetic bodies have the same poles opposite to each other, and the other magnetic bodies have different poles opposite to each other.

In one embodiment, the length of the magnetic body is in the range of 5mm to 100mm, the width of the magnetic body is in the range of 1mm to 20mm, the height of the magnetic body is in the range of 5mm to 50mm, and the magnetic field strength of the magnetic body is in the range of 200mt to 500mt.

In an embodiment, in a use state of the magnetic orientation device, the first direction is directed towards the main surface of the print substrate;

the distance between the magnetic body and the printing substrate along the first direction is in the range of 0 mm-100 mm.

A first aspect of the present application provides a printing apparatus comprising a magnetic orientation device as described above.

The beneficial effects of this application are: at least two magnetic bodies are arranged around a reference line extending along a first direction, and the at least two magnetic bodies are symmetrical about the center of the reference line; the magnetic fields of the at least two magnetic bodies interact with each other, so that the magnetic field of the magnetic orientation device becomes more complex, the anti-counterfeiting performance of the pattern oriented by the magnetic orientation device formed by the at least two magnetic bodies can be improved, and the magnetic field of the magnetic orientation device can be symmetrical due to the fact that the at least two magnetic bodies are symmetrical about the center of the reference line, so that the pattern oriented by the magnetic orientation device formed by the at least two magnetic bodies is more attractive. And this application's magnetism orienting device's simple structure, magnet adoption magnet commonly used need not to carry out special processing to the magnet, and the fixed position of magnet not only possess certain advantage in printing speed, quantity and mode moreover, and the uniformity of printed pattern is better.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the technical aspects of the application.

FIG. 1 is a schematic structural view of a first embodiment of a magnetic orientation device provided herein;

FIG. 2 is a schematic diagram of the structure of the observation angle distribution of a pattern printed by the magnetic orientation device provided by the present application;

FIG. 3 is a schematic illustration of the effect of the pattern printed by the magnetic orientation device shown in FIG. 1;

FIG. 4 is a schematic structural view of a second embodiment of the magnetic orientation device provided herein;

FIG. 5 is a schematic illustration of the effect of the pattern printed by the magnetic orientation device shown in FIG. 4;

FIG. 6 is a schematic structural view of a third embodiment of a magnetic orientation device provided herein;

FIG. 7 is a schematic view of a fourth embodiment of a magnetic orientation device provided herein;

FIG. 8 is a schematic illustration of the effect of the pattern printed by the magnetic orientation device shown in FIG. 7;

FIG. 9 is a schematic structural view of a fifth embodiment of a magnetic orientation device provided herein;

FIG. 10 is a schematic illustration of the effect of the pattern printed by the magnetic orientation device shown in FIG. 9;

FIG. 11 is a schematic structural view of a sixth embodiment of a magnetic orientation device provided herein;

FIG. 12 is a schematic illustration of the effect of the pattern printed by the magnetic orientation device of FIG. 11;

FIG. 13 is a schematic view of a portion of the magnetic induction line distribution of the magnetic orientation device of FIG. 11;

fig. 14 is a schematic view of the structure of an embodiment of the printing apparatus of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the foregoing description of the present specification, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise specifically defined in the specification, a person skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

From the foregoing description of the present specification, those skilled in the art will also understand that terms such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise" and the like, which indicate azimuth or positional relationship, are based on the azimuth or positional relationship shown in the drawings of the present specification, are for convenience only in describing the aspects of the present application and simplifying the description, and do not necessarily indicate or imply that the apparatus or elements involved must have a specific azimuth, be constructed and operate in a specific azimuth, and thus the azimuth or positional relationship terms described above should not be interpreted or construed as limiting the aspects of the present application.

In addition, the terms "first" or "second" and the like used in the present specification to refer to the numbers or ordinal numbers are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1, the present application proposes a magnetic orientation device 10 of a first embodiment.

The magnetic orientation device 10 is composed of at least two magnetic bodies 11.

At least two magnetic bodies 11 are arranged around a reference line extending in the first direction, and at least two magnetic bodies 11 are symmetrical about the center of the reference line. The magnetic fields of the at least two magnetic bodies 11 interact with each other, so that the magnetic field of the magnetic orientation device 10 becomes more complex, the anti-counterfeiting performance of the patterns oriented by the magnetic orientation device 10 formed by the at least two magnetic bodies 11 can be improved, the magnetic field of the magnetic orientation device 10 can be symmetrical due to the fact that the at least two magnetic bodies 11 are symmetrical about the center of a reference line, the patterns oriented by the magnetic orientation device 10 formed by the at least two magnetic bodies 11 can be attractive, the structure of the magnetic orientation device 10 is simple, the magnets can also be common magnets, special processing is not needed for the magnets, the positions of the magnets are fixed, certain advantages are achieved in terms of printing speed, number and mode, and the consistency of the printed patterns is good.

Wherein in the use state of the magnetic orientation device 10, the magnetic axes (i.e. the N/S axes) of at least two magnetic bodies 11 are all parallel to the main surface of the print substrate 20. I.e. in the use state of the magnetic orientation device 10, the N/S direction of at least two magnetic bodies 11 may each be parallel to the main surface of the carrier substrate 20.

Each magnetic body has an axis, the north-south magnetic poles of each magnetic body are located on two sides of the axis, and the axis of the at least two magnetic bodies or an extension line of the axis intersects with the reference line.

In some embodiments, the axis of at least two magnetic bodies 11 or an extension of the axis may intersect the reference line. Further, the axes of the magnetic bodies 11 may be located on the neutral planes of the magnetic bodies 11, and the neutral planes of at least two magnetic bodies 11 intersect with the reference line.

In other embodiments, at least two magnetic bodies 11 may form a cyclone-shaped arrangement. That is, at least two magnetic bodies 11 may be arranged in a "cyclone" shape (magnets are offset) and centered around the reference line.

Alternatively, at least two magnetic bodies 11 are homopolar opposed. I.e. adjacent surfaces of two adjacent magnetic bodies 11 may each be south. Alternatively, the adjacent surfaces of the adjacent two magnetic bodies 11 may each be a north pole. In other implementations, at least two magnetic bodies 11 are opposite in opposite polarity, i.e., one of the adjacent side surfaces of two adjacent magnetic bodies 11 has a south pole and the other has a north pole. Alternatively, at least two of the magnetic members 11 are arranged such that the same poles of the magnetic members 11 are opposed to each other, and the other magnetic members 11 are opposed to each other with different poles.

The magnetic body 11 may be an elliptic magnet, and the axis of the magnetic body 11 may be the long axis of the elliptic magnet, so that the magnetic orientation device 10 may include a larger number of magnetic bodies 11, and thus a variety of magnetic orientation devices 10 may be manufactured by the magnetic bodies 11, and further magnetic orientation effects may be obtained. Of course, in other embodiments, the magnetic body 11 may be a rectangular parallelepiped magnet or the like.

In addition, at least two magnetic bodies 11 may be provided in a single layer, that is, the magnetic orientation device 10 of the present application may have a single layer structure, which is easy to use and has good practicability. Of course, in other embodiments, at least two magnetic bodies 11 may be provided in multiple layers. For example, in the case where the magnetic orientation device 10 includes 6 magnetic bodies 11, three of the magnetic bodies 11 are located in the first layer, and the other three are located in the second layer.

In addition, in order to facilitate fixing the at least two magnetic bodies 11, the at least two magnetic bodies may be fixed by a fixing member so as to be arranged in a corresponding arrangement. Wherein the securing means includes, but is not limited to, an adhesive, a fastener or a fastener, etc.

The magnetic body 11 may be all types of magnets, for example, may be a permanent magnet, or may be a soft magnet. The material of the magnetic body 11 is not limited, and may be various magnetic materials, such as a metallic magnetic material and a nonmetallic magnetic material. The metal magnetic material mainly comprises electrical steel, nickel base alloy, rare earth alloy and the like, and the nonmetal magnetic material mainly comprises ferrite material and the like.

The magnetic field strength of the magnetic body 11 can be set according to the actual conditions such as the size of the print substrate 20 and/or the size of the printing apparatus, and is not limited herein. For example, the magnetic field strength of the magnetic body 11 may be 200mt to 500mt. Preferably, the magnetic field strength of the magnetic body 11 may be 300mt to 400mt. Most preferably, the magnetic field strength of the magnetic body 11 may be 400mt.

Wherein in the use state of the magnetic orientation device 10, the first direction may be directed toward the main surface of the print substrate 20, although not limited thereto. Preferably, the first direction may be perpendicular to the major surface of the support substrate 20. The main surface of the substrate 20 may refer to the surface of the substrate 20 having the largest area, or the surface of the substrate 20 printed with the magnetic ink.

The distance between the substrate 20 and the magnetic body 11 in the first direction may be set according to the magnetic strength of the magnetic body 11, the size of the substrate 20, and/or the size of the printing apparatus, and is not limited herein. For example, the distance between the print substrate 20 and the magnetic body 11 in the first direction may be 0mm to 100mm. Further, the distance between the print substrate 20 and the magnetic body 11 in the first direction may be 0mm to 50mm. Preferably, the distance between the print substrate 20 and the magnetic body 11 in the first direction may be 0mm to 10mm. Most preferably, the distance between the print substrate 20 and the magnetic body 11 in the first direction may be 0mm to 6mm.

The length of the magnetic body 11 may be in the range of 5mm to 100mm, but is not limited to this. Further, the length of the magnetic body 11 may be in the range of 10mm to 100mm. Preferably, the length of the magnetic body 11 is in the range of 20mm to 50mm. Most preferably, the length of the magnetic body 11 may be 25mm.

The width of the magnetic body 11 may be 1mm to 30mm, but is not limited to this. Further, the width of the magnetic body 11 may be in the range of 1mm to 15mm. Preferably, the width of the magnetic body 11 is in the range of 3mm to 10mm.

The height of the magnetic body 11 may be in the range of 5mm to 50mm, that is, the distance between the two end surfaces of the magnetic body 11 in the first direction may be in the range of 5mm to 50mm, but is not limited thereto. Further, the height of the magnetic body 11 may be in the range of 5mm to 20mm. Preferably, the height of the magnetic body 11 is in the range of 10mm to 15mm. Most preferably, the height of the magnetic body 11 may be 10mm.

The number of the magnetic bodies 11 in the magnetic alignment device 10 is not particularly limited as long as it is 2 or more, and may be an even number or an odd number. Further, the number of magnetic bodies 11 in the magnetic orientation device 10 may be greater than or equal to 5.

In order to better illustrate the magnetic orientation apparatus 10 of the above-described embodiment, the following specific examples of the magnetic orientation apparatus 10 are provided for illustrative purposes:

example 1

As shown in fig. 1, 6 magnetic bodies 11 are arranged around a reference line extending in a first direction, axes of the 6 magnetic bodies 11 or extension lines of the axes intersect the reference line, and the 6 magnetic bodies 11 are symmetrical about the center of the reference line, and an angle between axes of adjacent two magnetic bodies 11 is 60 °. In addition, adjacent two magnetic bodies 11 are opposite to each other in terms of opposite polarity. In this embodiment, a schematic diagram of the printed pattern obtained by using the rotation observation method shown in fig. 2 is shown in fig. 3, and the effect diagram is: in the "fresh flower" pattern, the patterns (A), (B) and (C) from left to right in FIG. 3 are respectively seen from the right upper side (0 DEG to 5 DEG), from (25 DEG to 30 DEG) and from (45 DEG to 60 DEG).

Example two

As shown in fig. 4, 8 magnetic bodies 11 are arranged around a reference line extending in the first direction, axes of the 8 magnetic bodies 11 or extension lines of the axes intersect the reference line, and the 8 magnetic bodies 11 are symmetrical about the center of the reference line, and an angle between axes of adjacent two magnetic bodies 11 is 45 °. In addition, adjacent two magnetic bodies 11 are opposite to each other in terms of opposite polarity. The printed patterns obtained in this example are, as shown in fig. 5, patterns viewed from directly above (0 ° to 5 °), 15 °, 30 °, and 45 ° in fig. 5 (a), (B), (C), and (D), respectively.

Example III

As shown in fig. 6, 12 magnetic bodies 11 are arranged around a reference line extending in the first direction, axes of the 12 magnetic bodies 11 or extension lines of the axes intersect the reference line, and the 12 magnetic bodies 11 are symmetrical about the center of the reference line, and an angle between the axes of adjacent two magnetic bodies 11 is 30 °. And the N/S orientations of the 12 magnetic bodies 11 may be center-symmetrical. In addition, two adjacent magnetic bodies 11 out of the 12 magnetic bodies 11 are opposite to each other in terms of opposite polarity.

Example IV

As shown in fig. 7, 3 magnetic bodies 11 are arranged around a reference line extending in the first direction, axes of the 3 magnetic bodies 11 or extension lines of the axes intersect the reference line, and the 3 magnetic bodies 11 are symmetrical about the center of the reference line, and an angle between axes of adjacent two magnetic bodies 11 is 120 °. In addition, adjacent two magnetic bodies 11 among the 3 magnetic bodies 11 are opposite to each other in terms of opposite polarity. The printed pattern obtained in this embodiment is shown in fig. 8, and the effect chart is: in the "lucky clover" pattern, dark areas are like leaves, bright areas are veins, and (a), (B), (C) and (D) in fig. 8 are patterns seen from directly above (0 ° to 5 °), 15 °, 30 °, 45 °, respectively.

Example five

As shown in fig. 9, 6 magnetic bodies 11 are arranged around a reference line extending in the first direction, axes of the 6 magnetic bodies 11 or extension lines of the axes intersect the reference line, and the 6 magnetic bodies 11 are symmetrical about the center of the reference line, and an angle between axes of adjacent two magnetic bodies 11 is 60 °. In addition, the N/S directions of the 6 magnetic bodies 11 are arranged axisymmetrically. The printed pattern obtained in this embodiment is shown in fig. 10, and the effect chart is: in the "winged insect/residual flower" pattern, the patterns (a), (B) and (C) in fig. 10 are respectively seen directly above (0 ° to 5 °), at (25 ° to 30 °), and at (45 ° to 60 °), and the pattern (D) in fig. 10 is seen by rotating the pattern by 30 °.

Example six

As shown in fig. 11, 8 elliptic magnets are arranged around a reference line extending in the first direction, and the 8 elliptic magnets are arranged in a "cyclone" shape (magnets are staggered) around the center of the reference line, the magnets are spaced apart from each other by the same angular interval, and the N/S axial directions of the magnets must also be symmetrical about the center of the reference line. The printed pattern obtained in this embodiment is shown in fig. 12, and the closed lines with 8 corners at the periphery enclose an "octopus" like pattern; the center one is a "starfish" pattern (indicated at a broken line circle) composed of 7 corners (near 4, far 3), specifically, patterns seen from directly above (0 ° -5 °), 15 °, 30 °, 45 ° in fig. 12, respectively. In addition, FIG. 13 provides a schematic illustration of the central "starfish" magnet wire of the magnetic orientation device 10, wherein the black magnet wire is the overall magnet wire trace and the light gray magnet wire is the magnet wire trace on each particular magnetic body.

The embodiment of the application also provides printing equipment 4. As shown in fig. 14, the printing apparatus 4 may include the magnetic orientation device 10 described above. The magnetic orientation device 10 provided by any one of the foregoing embodiments has corresponding technical features and technical effects, and will not be described herein.

Further, the printing apparatus may further comprise a printing device 41, a conveying device 42 and a curing device 43. The conveying device 42 is used for conveying the printing substrate 20 to sequentially pass through the printing device 41, the magnetic orientation device 10 and the curing device 43, wherein the printing device 41 is used for printing magnetic ink on the main surface, the magnetic orientation device 10 is used for magnetically orienting the magnetic ink, and the curing device 43 is used for curing the magnetically oriented ink.

The foregoing description is only the embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

The foregoing is only examples of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

Claims (9)

1. A magnetic orienting device, characterized in that it consists of at least two magnetic bodies only;

the at least two magnetic bodies are arranged around a reference line extending in a first direction, and the at least two magnetic bodies are symmetrical about a center of the reference line;

each magnetic body is provided with an axis, the north-south magnetic pole of each magnetic body is positioned at two sides of the axis, and the axis of the at least two magnetic bodies or the extension line of the axis intersects with the reference line;

in the use state of the magnetic orientation device, the magnetic axes of the at least two magnetic bodies are parallel to the main surface of the printing substrate.

2. The magnetic orientation device according to claim 1, wherein the axis of the magnetic body is located on a neutral plane of the magnetic body, and the neutral planes of the at least two magnetic bodies intersect the reference line.

3. A magnetic orientation device according to claim 2, wherein the magnetic body is an elliptic magnet and the axis is the long axis of the elliptic magnet.

4. A magnetic orientation device according to claim 1, wherein,

the number of the magnetic bodies is 6,6 magnetic bodies are arranged in a central symmetry way by taking the reference line as the center, and an included angle between the axes of two adjacent magnetic bodies is 60 degrees; or alternatively, the first and second heat exchangers may be,

the number of the magnetic bodies is 8,8 magnetic bodies are arranged in a central symmetry way by taking the reference line as the center, and the included angle between the axes of two adjacent magnetic bodies is 45 degrees; or alternatively, the first and second heat exchangers may be,

the number of the magnetic bodies is 12, 12 magnetic bodies are arranged in a central symmetry way by taking the reference line as the center, and an included angle between the axes of two adjacent magnetic bodies is 30 degrees; or alternatively, the first and second heat exchangers may be,

the number of the magnetic bodies is 3,3 magnetic bodies are arranged in a central symmetry mode taking the reference line as a center, and an included angle between the axes of two adjacent magnetic bodies is 120 degrees.

5. A magnetic orientation device according to claim 1, wherein,

the at least two magnetic bodies form a cyclone-shaped arrangement.

6. A magnetic orientation device according to claim 1, wherein,

adjacent two of the magnetic bodies are opposite in opposite polarity or opposite in same polarity, or,

the at least two magnetic bodies are partially opposite in homopolar, and the other magnetic bodies are opposite in heteropolar.

7. The magnetic orientation apparatus according to claim 1, wherein the length of the magnetic body is in the range of 5mm to 100mm, the width of the magnetic body is in the range of 1 to 20mm, the height of the magnetic body is in the range of 5 to 50mm, and the magnetic field strength of the magnetic body is in the range of 200mt to 500mt.

8. A magnetic orientation device according to claim 1, wherein in a use state of the magnetic orientation device, the first direction is directed towards a main surface of a print substrate;

the distance between the magnetic body and the printing substrate along the first direction ranges from 0mm to 100mm.

9. Printing apparatus, characterized in that it comprises a magnetic orientation device according to any of claims 1-8.