CN117863719A - Magnetic orientation device and printing equipment - Google Patents

Abstract

The application discloses a magnetic orientation device and printing equipment. The magnetic orientation device comprises a magnet and a magnetizer, wherein a through hole is formed in the magnet, and the central axis of the through hole is parallel to the magnetization direction of the magnet; the magnetizer is at least partially positioned in the through hole. The application can form the composite magnetic field of the printed anti-counterfeiting pattern through the simple combination of the magnets.

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 magnetic or magnetizable pigment flakes can be aligned by a magnetic field to produce a pattern which has a very strong anti-counterfeiting effect and which is "easy to identify and difficult to imitate".

However, the method for printing the anti-counterfeiting pattern by using the magnetic field is not enough, and the aesthetic property is not enough, so that the increasing demands of the public and the market cannot be met. And the magnetic orientation device for forming the magnetic field comprises excessive 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 magnets.

A first aspect of the present application provides a magnetic orienting device comprising: the magnet is provided with a through hole, and the central axis of the through hole is parallel to the magnetization direction of the magnet; and the magnetizer is at least partially positioned in the through hole.

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: the magnetic induction lines of the magnets are guided by the magnetizers arranged in the through holes, namely, the magnetizers are used for interfering the magnetic induction lines of the magnets to form a complex magnetic field so as to effectively change the patterns printed by the magnetic orientation device and enable the patterns printed by the magnetic orientation device to be easily identified. The magnetic orientation device has the advantages that the structure is simple, the magnet can also adopt a conventional permanent magnet, special processing is not required for the magnet, the position of the magnet can be fixed, the printing speed, the number and the mode are all improved, and the consistency of printed patterns is good.

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 the magnetic orientation device of the present application;

FIG. 2 is a schematic structural view of a magnet in a fourth embodiment of the magnetic orientation device of the present application;

FIG. 3 is a schematic view of the structure of a magnet in the magnetic orienting device of the comparative example;

FIG. 4 is a schematic view of an observation method for observing a fixed magnetic pattern obtained by orientation of a magnetic orientation device;

FIG. 5 is a schematic illustration of the effect of the fixed magnetic pattern oriented by the magnetic orientation device of the comparative example at different viewing angles;

FIG. 6 is an assembled schematic view of a first embodiment of the magnetic orientation device of the present application;

FIG. 7 is a schematic view showing the effect of the fixed magnetic pattern obtained by the first embodiment of the magnetic orientation device of the present application under different observation angles when the fixed magnetic height is 0 mm;

FIG. 8 is a schematic view showing the effect of the fixed magnetic pattern obtained by the first embodiment of the magnetic orientation device of the present application under different observation angles when the fixed magnetic height is 10 mm;

FIG. 9 is a schematic view showing the effect of the fixed magnetic pattern obtained by the first embodiment of the magnetic orientation device of the present application under different observation angles when the fixed magnetic height is 20 mm;

FIG. 10 is a schematic structural view of a second embodiment of the magnetic orientation device of the present application;

FIG. 11 is a schematic structural view of a magnet in a third embodiment of the magnetic orientation device of the present application;

FIG. 12 is a schematic view of the structure of a third embodiment of the magnetic orientation apparatus of the present application;

FIG. 13 is a schematic view of a fourth embodiment of a magnetic orientation device of the present application;

FIG. 14 is a schematic view of the structure of a fifth embodiment of the magnetic orientation apparatus of the present application;

FIG. 15 is a schematic view of the structure of a magnet in a sixth embodiment of the magnetic orientation device of the present application;

FIG. 16 is a schematic view of a sixth embodiment of a magnetic orientation device of the present application;

FIG. 17 is a schematic view of a seventh embodiment of a magnetic orientation device of the present application;

FIG. 18 is a schematic view of the structure of an eighth embodiment of the magnetic orientation device of the present application;

FIG. 19 is a schematic view of a ninth embodiment of a magnetic orientation apparatus of the present application;

FIG. 20 is a schematic view of a tenth embodiment of a magnetic orientation apparatus of the present application;

FIG. 21 is a schematic view of the structure of an eleventh embodiment of a magnetic orientation apparatus of the present application;

fig. 22 is a schematic structural view 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, a magnetic orientation device 10 proposed in the present application includes a magnet 11 and a magnetizer 12. The magnet 11 is provided with a through hole 111, and a central axis of the through hole 111 of the magnet 11 is parallel to a magnetization direction (i.e., a magnetizing direction) of the magnet 11. The magnetizer 12 is at least partially located in the through hole 111 formed in the magnet 11, as shown in fig. 2, the direction of the magnetic induction line of the magnet 11 can be guided by the magnetizer 12 arranged in the through hole 111, that is, the magnetic induction line of the magnet 11 is interfered by the magnetizer 12 to form a complex magnetic field, so that the pattern printed by the magnetic orientation device 10 is effectively changed, and the pattern printed by the magnetic orientation device 10 is easy to identify. In addition, the magnetic orientation device 10 has a simple structure, the magnet 11 can also adopt a conventional permanent magnet, special processing on the magnet 11 is not needed, the position of the magnet 11 can be fixed, and the magnetic orientation device not only has certain advantages in printing speed, quantity and mode, but also has better consistency of printed patterns.

Alternatively, the magnet 11 may be all types of magnets, for example, may be a permanent magnet, or may be a soft magnet. The material of the magnet 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.

Wherein the shape of the magnet 11 is not limited. For example, the magnet 11 may be cylindrical or rectangular parallelepiped, elliptic cylindrical, or the like. Alternatively, the magnet 11 has two end faces disposed at intervals along the magnetization direction, the end faces may be rectangular or triangular, and the end faces may be flat or curved.

The length of the magnet 11 may range from 5mm to 100mm, although it is not limited thereto. Further, the length of the magnet 11 may range from 10mm to 100mm. More preferably, the length of the magnet 11 may be in the range of 20mm to 50mm. Most preferably, the length of the magnet 11 may range from 30mm.

The width of the magnet 11 may range from 5mm to 100mm, although it is not limited thereto. Further, the width of the magnet 11 may range from 10mm to 50mm. More preferably, the width of the magnet 11 may be in the range of 15mm to 50mm. Most preferably, the width of the magnet 11 may be in the range of 20mm.

The height of the magnet 11 may range from 2mm to 50mm, although not limited thereto. Further, the height of the magnet 11 may range from 2mm to 20mm. More preferably, the height of the magnet 11 may be in the range of 3mm to 15mm. Most preferably, the height of the magnet 11 may range from 5mm to 10mm.

Wherein the magnetic orientation device 10 of the present application can be used to change the orientation of magnetic pigment flakes in a magnetic ink on the major surface of a substrate to achieve magnetic orientation. And the magnetic orientation device 10 may be disposed within the printing device. Wherein in the use state of the magnetic orientation device 10, the magnet 11 may be directed in a first direction towards the main surface of the substrate. The main surface of the printing material may be the surface of the printing material with the largest area or the surface of the printing material printed with the magnetic ink.

To facilitate the magnetic orientation of the magnetic ink on the substrate by the magnetic orientation device 10, the angle between the magnetization direction of the magnet 11 in the magnetic orientation device 10 and the main surface of the substrate may be in the range of [60 °,120 ]. Preferably, the magnetization direction of the magnet 11 in the magnetic orientation device 10 is substantially perpendicular to the main surface of the printing object, i.e. the central axis of the through hole 111 formed in the magnet 11 may be perpendicular to the main surface of the printing object.

The magnetic field strength of the magnet 11 may be set according to the actual condition such as the size of the printing material and/or the size of the printing apparatus, and is not limited herein. For example, the magnetic field strength of the magnet 11 may be 200mt to 500mt. Preferably, the magnetic field strength of the magnet 11 may be 300mt to 400mt. Most preferably, the magnetic field strength of the magnet 11 may be 350mt.

The distance between the substrate and the magnet 11 in the first direction may be set according to the magnetic strength of the magnet 11, the size of the substrate, and/or the size of the printing apparatus, and is not limited herein. For example, the distance separating the substrate and the magnet 11 in the first direction may be 0mm to 50mm. Further, the distance between the substrate and the magnet 11 in the first direction may be 0mm to 10mm. Preferably, the distance between the substrate and the magnet 11 in the first direction may be 0mm to 1.5mm. Most preferably, the distance between the substrate and the magnet 11 in the first direction may be 0mm to 1mm.

The shape of the through hole 111 formed in the magnet 11 is not limited, and for example, a cylindrical through hole, a square column-shaped through hole, an elliptic column-shaped through hole, or the like may be formed.

The size of the through hole 111 opened in the magnet 11 is not limited, and for example, the radius of the through hole 111 may be 1mm to 6mm.

Further, the shape and/or size of the cross section of the through hole 111 may remain unchanged along the axial direction of the through hole 111, i.e., the through hole 111 may be an equal diameter hole. Of course, in certain embodiments, the shape and/or size of the cross-section of the through-hole 111 may vary along the axial direction of the through-hole 111. For example, the diameter of the cross section of the through hole 111 may be gradually smaller in the axial direction of the through hole 111. As another example, the diameter of the cross section of the through hole 111 may be gradually reduced and then maintained constant along the axial direction of the through hole 111.

The number of through holes 111 opened in the magnet 11 is not limited. For example, as shown in fig. 1, a through hole 111 may be formed in the magnet 11. For example, as shown in fig. 2, a plurality of through holes 111 may be formed in the magnet 11.

For the magnet 11 provided with the through hole 111, the magnetizer 12 can be arranged in the through hole 111 so as to interfere the magnetic induction line of the magnet 11 through the magnetizer 12 to form a complex magnetic field, so that the pattern printed by the magnetic orientation device 10 can be effectively changed, and the pattern printed by the magnetic orientation device 10 can be easily identified.

The magnet 11 and the magnetizer 12 may be arranged in a single layer, that is, the magnetic orientation device 10 of the present application may have a single layer structure, and has high usability and good practicability. The single-layer arrangement herein means that the magnet 11 and the magnetizer 12 are located in the same layer, and it is not limited whether each magnet 11/each magnetizer 12 is of a single-layer structure or a multi-layer structure. That is, each magnet 11/each magnetizer 12 may have a single-layer structure or a multi-layer structure. The above description is also understood to mean that the at least one magnet 11 and the at least one magnetizer 12 are laid flat in a direction perpendicular to the first direction. Alternatively, where magnetic orienting device 10 includes a plurality of magnets 11 and a plurality of magnetizers 12, the plurality of magnets 11 and the plurality of magnetizers 12 may be tiled along a curved surface. In a specific example, the magnetic orientation device 10 may include a roller 13, and the plurality of magnets 11 and the plurality of magnetizers 12 may be laid flat along an outer surface of the roller 13, so that the magnets 11 for fixing magnetism are disposed on a transmission device, thereby saving overall printing time and space, and obtaining a special fixing magnetism effect.

Alternatively, the shape of the magnetizer 12 may be identical to the shape of the through-hole 111 opened in the magnet 11. For example, when the through hole 111 formed in the magnet 11 is a cylindrical through hole 111, the magnetizer 12 may be cylindrical. Of course, in other embodiments, the shape of the magnetizer 12 may be different from the shape of the through hole 111 formed on the magnet 11.

In addition, the size of the magnetizer 12 may be the same as the size of the through hole 111 formed on the magnet 11, that is, the shape and size of the magnetizer 12 and the through hole 111 formed on the magnet 11 may be exactly adapted, so that the through hole 111 and the magnetizer 12 disposed therein may be in transition fit, so as to facilitate the fixing of the relative positions of the magnetizer 12 and the magnet 11. Of course, in other embodiments, the size of the magnetizer 12 may be different from the size of the through hole 111 formed on the magnet 11. For example, the outer diameter of the magnetic conductor 12 is smaller than the inner diameter of the through hole 111 formed in the magnet 11, so that the through hole 111 and the magnetic conductor 12 provided therein can be clearance-fitted.

At least one end of the magnetic conductor 12 may be flush with the surface of the magnet 11. Alternatively, at least one end of the magnetic conductor 12 may protrude through the through-hole 111, for example, an end of the magnetic conductor 12 facing the substrate may protrude through the through-hole 111. In other embodiments, the magnetic conductor 12 may be disposed sunk in the through hole 111.

The magnetizer 12 may be made of ferromagnetic substances such as iron, electrical steel, magnetic stainless steel, ferrite, nickel-based alloy, etc.

The magnetizer 12 may also be used as a fastener for fixing the magnet 11, so that the through hole 111 and the magnetizer 12 are both structures for fixing the magnet 11 and for generating a fixed magnetic effect. For example, a screw, a bolt, or the like made of a ferromagnetic substance may be used as the magnetizer 12.

In the case where the magnet 11 is provided with a plurality of through holes 111, the magnetizer 12 may be provided in at least part of the through holes 111 of the magnet 11. More preferably, the magnetic conductors 12 may be disposed in each through hole 111 of the magnet 11, so that each magnetic conductor 12 guides the magnetic induction line around it, so that the magnetic fields formed by matching each magnetic conductor 12 with the area around the magnet 11 can be used for magnetically orienting the magnetic ink on the printing stock, and thus, when the plurality of through holes 111 are formed in the magnet 11, the plurality of through holes 111 and the corresponding magnetic conductors 12 can magnetically orient the plurality of magnetic ink on the printing stock, so that the magnetic orientation can be performed in batch.

Further, the magnetic orientation device 10 may include a plurality of magnets 11, the plurality of magnets 11 may be arranged in an array, each magnet 11 is provided with at least one through hole 111, and at least one through hole 111 of each magnet 11 is provided with a magnetizer 12, so that the plurality of magnets 11 and the plurality of magnetizers 12 can perform magnetic orientation in batches, thereby meeting the requirement of batch printing production.

Alternatively, the magnets 11 may be disposed in a manner of being bonded to each other, and the two magnets 11 opposite to each other are opposite to each other in different steps, i.e. the north pole of one magnet 11 is opposite to the south pole of its adjacent magnet 11, so that the adjacent two magnets 11 can be relatively stationary without other firmware, thereby facilitating printing. Of course, in other embodiments, the adjacent magnets 11 may be spaced apart, and in this case, the two magnets 11 may be opposite to each other in different stages or may be opposite to each other in the same stage.

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:

comparative example

As shown in fig. 3, the magnetic orientation device 10 includes a magnet 11. The one magnet 11 is provided with a through hole 111 at the center thereof, and the center axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. The fixed magnetic pattern can be obtained by placing the substrate printed with the magnetic ink in the magnetic field formed by the magnetic orientation device 10 shown in fig. 3. And magnetically oriented, the magnet 11 is directed in a first direction toward the major surface of the substrate. According to the fixed magnetic pattern printed by the magnetic orientation device 10 according to the present embodiment, which is shown in fig. 4, the schematic effect of [0 ° -45 ° ] at different viewing angles shown in fig. 5 can be obtained. As can be seen from fig. 5, the magnetic orientation device 10 of the present comparative example has only one circle on the fixed magnetic pattern.

Example 1

As shown in fig. 1 and 6, the magnetic orienting device 10 includes a magnet 11 and a magnetizer 12. The one magnet 11 is provided with a through hole 111 at the center thereof, and the center axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. And the diameter of the cross section of the through hole 111 becomes gradually smaller and then remains unchanged in the axial direction of the through hole 111. The magnetizer 12, which is exactly adapted to the size of the through-hole 111, is inserted into the through-hole 111. The fixed magnetic pattern can be obtained by placing the substrate printed with the magnetic ink in the magnetic field formed by the magnetic orientation device 10 shown in fig. 1. And magnetically oriented, the magnet 11 is directed in a first direction toward the major surface of the substrate. According to the fixed magnetic pattern printed by the magnetic alignment device 10 according to the present embodiment shown in fig. 4, the schematic effect diagram of fig. 7 at different viewing angles with the fixed magnetic height (the distance between the printing material and the magnetic alignment device 10) being 0 can be obtained, and the schematic effect diagram of fig. 8 at different viewing angles with the fixed magnetic height being 10mm can be obtained, and the schematic effect diagram of fig. 9 at different viewing angles with the fixed magnetic height being 20mm can be obtained. As can be seen from fig. 7, by providing the magnetizer 12 in the through-hole 111 of the magnet 11, the magnetic field of the magnetic orientation device 10 can be changed, so that the fixed magnetic pattern of the present embodiment can be made to be significantly different from that of the comparative example, and as shown in fig. 7, the fixed magnetic pattern of the present embodiment exhibits a "like the sun" phenomenon. As can be seen by comparing fig. 7, 8 and 9, by varying the fixed magnetic height, a significant change in the fixed magnetic pattern can be made. Specifically, in fig. 8 the fixed magnetic pattern exhibits a "crescent effect", seen from directly above, namely: a front view (0 °), basically also a circular face; a "crescent" shadow appears at 30 ° side view and 45 ° side view. Further, the "crescent" effect exhibited by the fixed magnetic pattern in FIG. 9 is stronger.

Example 2

As shown in fig. 10, the magnetic orienting device 10 includes a magnet 11 and a magnetizer 12. The one magnet 11 is provided with a through hole 111 at the center thereof, and the center axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. And the diameter of the cross section of the through hole 111 becomes gradually smaller and then remains unchanged in the axial direction of the through hole 111. The magnetizer 12 having a size just adapted to the through-hole 111 is inserted into the through-hole 111, and the magnetizer 12 may be disposed to be sunk in the through-hole 111, i.e., one end surface of the magnetizer 12 is lower than the surface of the magnet 11. And magnetically oriented, the magnet 11 is oriented in a first direction toward the major surface of the substrate such that the distance between the substrate and the magnetizer 12 in the first direction is greater than the distance between the magnet 11 and the substrate in the first direction.

Example 3

As shown in fig. 11 and 12, the magnetic orienting device 10 includes a magnet 11 and a magnetizer 12. The one magnet 11 is provided with a through hole 111 at the center thereof, and the center axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. And the diameter of the cross section of the through hole 111 is maintained constant along the axial direction of the through hole 111, i.e., the through hole 111 is an equal diameter hole. The magnetizer 12 with the size just matched with the through hole 111 is embedded into the through hole 111, and one end of the magnetizer 12 is arranged beyond the surface of the magnet 11. And when magnetically oriented, the magnet 11 is directed in a first direction toward the major surface of the substrate such that the distance between the substrate and the magnetizer 12 in the first direction is less than the distance between the magnet 11 and the substrate in the first direction.

Example 4

As shown in fig. 2 and 13, the magnetic orienting device 10 includes an elliptical magnet 11 and a plurality of magnetizers 12. The one magnet 11 is provided with a plurality of through holes 111, and the central axes of the plurality of through holes 111 are parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. A plurality of magnetizers 12, which are exactly adapted to the size of the through holes 111, are embedded in the plurality of through holes 111 in one-to-one correspondence. And magnetically oriented, the magnet 11 is directed in a first direction toward the major surface of the substrate.

Example 5

As shown in fig. 14, the magnetic orienting device 10 includes a plurality of rectangular parallelepiped magnets 11. The magnets 11 are arranged in an array, and two adjacent magnets 11 are arranged in a fitting manner and are opposite in different stages. Each magnet 11 is provided with a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. The magnetizer 12, which is exactly adapted to the size of the through-hole 111, may be inserted into the through-hole 111 of the magnet 11.

Example 6

As shown in fig. 15 and 16, the magnetic orienting device 10 includes a plurality of triangular-columnar magnets 11. The magnets 11 are arranged in an array, and two adjacent magnets 11 are arranged in a fitting manner and are opposite in different stages. Each magnet 11 is provided with a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. The magnetizer 12, which is exactly adapted to the size of the through-hole 111, may be inserted into the through-hole 111 of the magnet 11.

Example 7

As shown in fig. 17, the magnetic orienting device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are uniformly distributed on the periphery of the roller 13, and two adjacent magnets 11 are arranged at intervals and are opposite in same level. Each magnet 11 is provided with a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. The magnetizer 12, which is exactly adapted to the size of the through-hole 111, may be inserted into the through-hole 111 of the magnet 11.

Example 8

As shown in fig. 18, the magnetic orienting device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are uniformly distributed on the periphery of the roller 13, and the periphery of the roller 13 is covered by the magnets 11, so that the magnetic orientation device 10 has higher flatness, and two adjacent magnets 11 are attached to each other and are opposite in different grades. Each magnet 11 is provided with a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. The magnetizer 12, which is exactly adapted to the size of the through-hole 111, may be inserted into the through-hole 111 of the magnet 11.

Example 9

As shown in fig. 19, the magnetic orienting device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are embedded into the roller 13, and two adjacent magnets 11 are arranged at intervals and are opposite to each other in the same stage. Each magnet 11 is provided with a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. The magnetizer 12, which is exactly adapted to the size of the through-hole 111, may be inserted into the through-hole 111 of the magnet 11.

Example 10

As shown in fig. 20, the magnetic orienting device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are uniformly embedded into the roller 13, and two adjacent magnets 11 are arranged at intervals and are opposite to each other in the same stage. Each magnet 11 is provided with a plurality of through holes 111, and the central axes of the plurality of through holes 111 are parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. A plurality of magnetizers 12, which are exactly adapted to the size of the through holes 111, are embedded in the plurality of through holes 111 in one-to-one correspondence.

Example 11

As shown in fig. 21, the magnetic orienting device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are uniformly distributed on the periphery of the roller 13, and the periphery of the roller 13 is covered by the magnets 11, so that the magnetic orientation device 10 has higher flatness, and two adjacent magnets 11 are attached to each other and are opposite in different grades. Each magnet 11 is provided with a plurality of through holes 111, and the central axes of the plurality of through holes 111 are parallel to the magnetization direction (i.e., N/S axis) of the magnet 11. A plurality of magnetizers 12, which are exactly adapted to the size of the through holes 111, are embedded in the plurality of through holes 111 in one-to-one correspondence.

The embodiment of the application also provides printing equipment 4. As shown in fig. 22, 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 stock 2 to sequentially pass through the printing device 41, the magnetic orientation device 10 and the curing device 43, 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 application also provides a method for manufacturing the magnetic pattern. The method for manufacturing the magnetic pattern includes.

S1: a magnetic ink is coated on a major surface of the substrate.

S2: and (3) utilizing a magnetic orientation device to orient the magnetic pigment flakes in the magnetic ink.

The magnetic orientation device can be arranged on one side of the printing stock, and the orientation of the magnetic pigment flakes in the magnetic ink on the main surface of the printing stock is changed through the composite magnetic field formed by the annular magnet and the block magnet of the magnetic orientation device so as to realize magnetic orientation.

S3: and curing the magnetic ink.

After the magnetic pigment flakes in the magnetic ink are oriented by the magnetic orientation device, the ink layer can be solidified to further form the annular stereoscopic optical pattern. Through a series of steps, the magnetic orientation device in the embodiment forms a unique annular three-dimensional optical pattern in the magnetic ink by utilizing the action of a composite magnetic field formed by interaction of the annular magnet and the block magnet, has good three-dimensional effect of the pattern and can improve the magnetic anti-counterfeiting effect.

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 (10)

1. A magnetic orienting device, the magnetic orienting device comprising:

the magnet is provided with a through hole, and the central axis of the through hole is parallel to the magnetization direction of the magnet;

and the magnetizer is at least partially positioned in the through hole.

2. The magnetic orientation device according to claim 1, wherein the number of the magnets is plural, the plural magnets are arranged in an array arrangement, each of the magnets is provided with at least one through hole, and the magnetizer is provided in at least one through hole of each of the magnets.

3. A magnetic orientation device according to claim 2, wherein the magnet has two end faces arranged at intervals along the magnetization direction, the end faces being rectangular or triangular, the end faces being planar or curved.

4. The magnetic orientation device according to claim 2, comprising a non-magnetic drum, wherein a plurality of the magnet arrays are arranged on the periphery of the drum or wherein a plurality of the magnet arrays are embedded in the drum.

5. A magnetic orientation device according to claim 2 or 4 wherein two adjacent magnets are positioned in close proximity to each other and are differentially opposed.

6. A magnetic orientation device according to any of claims 1-4, wherein the magnet is provided with a plurality of through holes, each through hole being provided with the magnetizer therein.

7. The magnetic orientation device of claim 1 wherein at least one end of the magnetic conductor is flush with the surface of the magnet or extends through the through hole or is submerged in the through hole.

8. A magnetic orientation device according to claim 1, wherein the magnetizer and the magnet are in a transition fit or a clearance fit, and/or wherein the through-hole has an inner diameter at one end that is greater than or equal to an inner diameter at the other end thereof.

9. A magnetic orientation device according to claim 1, wherein in the use state of the magnetic orientation device, the magnet is spaced from the substrate in a first direction in the range of 0mm to 100mm, and the first direction is directed towards a major surface of the substrate.

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